Merge branch 'acpi-assorted'
* acpi-assorted:
ACPI / EC: Add ASUSTEK L4R to quirk list in order to validate ECDT
ACPI / thermal: Add check of "_TZD" availability and evaluating result
diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt
index 19fa98e..40282e6 100644
--- a/Documentation/cpu-freq/cpu-drivers.txt
+++ b/Documentation/cpu-freq/cpu-drivers.txt
@@ -50,8 +50,6 @@
cpufreq_driver.name - The name of this driver.
-cpufreq_driver.owner - THIS_MODULE;
-
cpufreq_driver.init - A pointer to the per-CPU initialization
function.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 15356ac..03c196d 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -235,10 +235,61 @@
Format: To spoof as Windows 98: ="Microsoft Windows"
acpi_osi= [HW,ACPI] Modify list of supported OS interface strings
- acpi_osi="string1" # add string1 -- only one string
- acpi_osi="!string2" # remove built-in string2
+ acpi_osi="string1" # add string1
+ acpi_osi="!string2" # remove string2
+ acpi_osi=!* # remove all strings
+ acpi_osi=! # disable all built-in OS vendor
+ strings
acpi_osi= # disable all strings
+ 'acpi_osi=!' can be used in combination with single or
+ multiple 'acpi_osi="string1"' to support specific OS
+ vendor string(s). Note that such command can only
+ affect the default state of the OS vendor strings, thus
+ it cannot affect the default state of the feature group
+ strings and the current state of the OS vendor strings,
+ specifying it multiple times through kernel command line
+ is meaningless. This command is useful when one do not
+ care about the state of the feature group strings which
+ should be controlled by the OSPM.
+ Examples:
+ 1. 'acpi_osi=! acpi_osi="Windows 2000"' is equivalent
+ to 'acpi_osi="Windows 2000" acpi_osi=!', they all
+ can make '_OSI("Windows 2000")' TRUE.
+
+ 'acpi_osi=' cannot be used in combination with other
+ 'acpi_osi=' command lines, the _OSI method will not
+ exist in the ACPI namespace. NOTE that such command can
+ only affect the _OSI support state, thus specifying it
+ multiple times through kernel command line is also
+ meaningless.
+ Examples:
+ 1. 'acpi_osi=' can make 'CondRefOf(_OSI, Local1)'
+ FALSE.
+
+ 'acpi_osi=!*' can be used in combination with single or
+ multiple 'acpi_osi="string1"' to support specific
+ string(s). Note that such command can affect the
+ current state of both the OS vendor strings and the
+ feature group strings, thus specifying it multiple times
+ through kernel command line is meaningful. But it may
+ still not able to affect the final state of a string if
+ there are quirks related to this string. This command
+ is useful when one want to control the state of the
+ feature group strings to debug BIOS issues related to
+ the OSPM features.
+ Examples:
+ 1. 'acpi_osi="Module Device" acpi_osi=!*' can make
+ '_OSI("Module Device")' FALSE.
+ 2. 'acpi_osi=!* acpi_osi="Module Device"' can make
+ '_OSI("Module Device")' TRUE.
+ 3. 'acpi_osi=! acpi_osi=!* acpi_osi="Windows 2000"' is
+ equivalent to
+ 'acpi_osi=!* acpi_osi=! acpi_osi="Windows 2000"'
+ and
+ 'acpi_osi=!* acpi_osi="Windows 2000" acpi_osi=!',
+ they all will make '_OSI("Windows 2000")' TRUE.
+
acpi_pm_good [X86]
Override the pmtimer bug detection: force the kernel
to assume that this machine's pmtimer latches its value
@@ -2953,7 +3004,7 @@
improve throughput, but will also increase the
amount of memory reserved for use by the client.
- swapaccount[=0|1]
+ swapaccount=[0|1]
[KNL] Enable accounting of swap in memory resource
controller if no parameter or 1 is given or disable
it if 0 is given (See Documentation/cgroups/memory.txt)
diff --git a/MAINTAINERS b/MAINTAINERS
index 7cacc88..8197fbd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5581,9 +5581,9 @@
F: drivers/media/tuners/mxl5007t.*
MYRICOM MYRI-10G 10GbE DRIVER (MYRI10GE)
-M: Andrew Gallatin <gallatin@myri.com>
+M: Hyong-Youb Kim <hykim@myri.com>
L: netdev@vger.kernel.org
-W: http://www.myri.com/scs/download-Myri10GE.html
+W: https://www.myricom.com/support/downloads/myri10ge.html
S: Supported
F: drivers/net/ethernet/myricom/myri10ge/
@@ -5884,7 +5884,7 @@
F: include/linux/i2c-omap.h
OMAP DEVICE TREE SUPPORT
-M: Benoît Cousson <b-cousson@ti.com>
+M: Benoît Cousson <bcousson@baylibre.com>
M: Tony Lindgren <tony@atomide.com>
L: linux-omap@vger.kernel.org
L: devicetree@vger.kernel.org
@@ -5964,14 +5964,14 @@
F: drivers/char/hw_random/omap-rng.c
OMAP HWMOD SUPPORT
-M: Benoît Cousson <b-cousson@ti.com>
+M: Benoît Cousson <bcousson@baylibre.com>
M: Paul Walmsley <paul@pwsan.com>
L: linux-omap@vger.kernel.org
S: Maintained
F: arch/arm/mach-omap2/omap_hwmod.*
OMAP HWMOD DATA FOR OMAP4-BASED DEVICES
-M: Benoît Cousson <b-cousson@ti.com>
+M: Benoît Cousson <bcousson@baylibre.com>
L: linux-omap@vger.kernel.org
S: Maintained
F: arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -7366,7 +7366,6 @@
SGI GRU DRIVER
M: Dimitri Sivanich <sivanich@sgi.com>
-M: Robin Holt <holt@sgi.com>
S: Maintained
F: drivers/misc/sgi-gru/
@@ -7386,7 +7385,8 @@
F: Documentation/sgi-visws.txt
SGI XP/XPC/XPNET DRIVER
-M: Robin Holt <holt@sgi.com>
+M: Cliff Whickman <cpw@sgi.com>
+M: Robin Holt <robinmholt@gmail.com>
S: Maintained
F: drivers/misc/sgi-xp/
diff --git a/Makefile b/Makefile
index 6e48848..369882e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 3
PATCHLEVEL = 11
SUBLEVEL = 0
-EXTRAVERSION = -rc5
+EXTRAVERSION = -rc7
NAME = Linux for Workgroups
# *DOCUMENTATION*
diff --git a/arch/Kconfig b/arch/Kconfig
index 8d2ae24..1feb169 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -407,6 +407,12 @@
help
Architecture has the first two arguments of clone(2) swapped.
+config CLONE_BACKWARDS3
+ bool
+ help
+ Architecture has tls passed as the 3rd argument of clone(2),
+ not the 5th one.
+
config ODD_RT_SIGACTION
bool
help
diff --git a/arch/arc/lib/strchr-700.S b/arch/arc/lib/strchr-700.S
index 99c1047..9c548c7 100644
--- a/arch/arc/lib/strchr-700.S
+++ b/arch/arc/lib/strchr-700.S
@@ -39,9 +39,18 @@
ld.a r2,[r0,4]
sub r12,r6,r7
bic r12,r12,r6
+#ifdef __LITTLE_ENDIAN__
and r7,r12,r4
breq r7,0,.Loop ; For speed, we want this branch to be unaligned.
b .Lfound_char ; Likewise this one.
+#else
+ and r12,r12,r4
+ breq r12,0,.Loop ; For speed, we want this branch to be unaligned.
+ lsr_s r12,r12,7
+ bic r2,r7,r6
+ b.d .Lfound_char_b
+ and_s r2,r2,r12
+#endif
; /* We require this code address to be unaligned for speed... */
.Laligned:
ld_s r2,[r0]
@@ -95,6 +104,7 @@
lsr r7,r7,7
bic r2,r7,r6
+.Lfound_char_b:
norm r2,r2
sub_s r0,r0,4
asr_s r2,r2,3
diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts
index d59b70c..3d77dbe 100644
--- a/arch/arm/boot/dts/at91sam9n12ek.dts
+++ b/arch/arm/boot/dts/at91sam9n12ek.dts
@@ -14,11 +14,11 @@
compatible = "atmel,at91sam9n12ek", "atmel,at91sam9n12", "atmel,at91sam9";
chosen {
- bootargs = "mem=128M console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2";
+ bootargs = "console=ttyS0,115200 root=/dev/mtdblock1 rw rootfstype=jffs2";
};
memory {
- reg = <0x20000000 0x10000000>;
+ reg = <0x20000000 0x8000000>;
};
clocks {
diff --git a/arch/arm/boot/dts/at91sam9x5ek.dtsi b/arch/arm/boot/dts/at91sam9x5ek.dtsi
index b753855..49e3c45 100644
--- a/arch/arm/boot/dts/at91sam9x5ek.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5ek.dtsi
@@ -94,8 +94,9 @@
usb0: ohci@00600000 {
status = "okay";
- num-ports = <2>;
- atmel,vbus-gpio = <&pioD 19 GPIO_ACTIVE_LOW
+ num-ports = <3>;
+ atmel,vbus-gpio = <0 /* &pioD 18 GPIO_ACTIVE_LOW *//* Activate to have access to port A */
+ &pioD 19 GPIO_ACTIVE_LOW
&pioD 20 GPIO_ACTIVE_LOW
>;
};
diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts b/arch/arm/boot/dts/tegra20-seaboard.dts
index 365760b..40e6fb2 100644
--- a/arch/arm/boot/dts/tegra20-seaboard.dts
+++ b/arch/arm/boot/dts/tegra20-seaboard.dts
@@ -830,6 +830,8 @@
regulator-max-microvolt = <5000000>;
enable-active-high;
gpio = <&gpio 24 0>; /* PD0 */
+ regulator-always-on;
+ regulator-boot-on;
};
};
diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts
index ed4b901..37c93d3 100644
--- a/arch/arm/boot/dts/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
@@ -412,6 +412,8 @@
regulator-max-microvolt = <5000000>;
enable-active-high;
gpio = <&gpio 170 0>; /* PV2 */
+ regulator-always-on;
+ regulator-boot-on;
};
};
diff --git a/arch/arm/boot/dts/tegra20-whistler.dts b/arch/arm/boot/dts/tegra20-whistler.dts
index ab67c94..a3d0eba 100644
--- a/arch/arm/boot/dts/tegra20-whistler.dts
+++ b/arch/arm/boot/dts/tegra20-whistler.dts
@@ -588,6 +588,8 @@
regulator-max-microvolt = <5000000>;
enable-active-high;
gpio = <&tca6416 0 0>; /* GPIO_PMU0 */
+ regulator-always-on;
+ regulator-boot-on;
};
vbus3_reg: regulator@3 {
@@ -598,6 +600,8 @@
regulator-max-microvolt = <5000000>;
enable-active-high;
gpio = <&tca6416 1 0>; /* GPIO_PMU1 */
+ regulator-always-on;
+ regulator-boot-on;
};
};
diff --git a/arch/arm/include/asm/smp_plat.h b/arch/arm/include/asm/smp_plat.h
index 6462a72..a252c0b 100644
--- a/arch/arm/include/asm/smp_plat.h
+++ b/arch/arm/include/asm/smp_plat.h
@@ -88,4 +88,7 @@
{
return 1 << mpidr_hash.bits;
}
+
+extern int platform_can_cpu_hotplug(void);
+
#endif
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index f8b8965..b07c09e 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -107,7 +107,7 @@
" subs %1, %0, %0, ror #16\n"
" addeq %0, %0, %4\n"
" strexeq %2, %0, [%3]"
- : "=&r" (slock), "=&r" (contended), "=r" (res)
+ : "=&r" (slock), "=&r" (contended), "=&r" (res)
: "r" (&lock->slock), "I" (1 << TICKET_SHIFT)
: "cc");
} while (res);
@@ -168,17 +168,20 @@
static inline int arch_write_trylock(arch_rwlock_t *rw)
{
- unsigned long tmp;
+ unsigned long contended, res;
- __asm__ __volatile__(
-" ldrex %0, [%1]\n"
-" teq %0, #0\n"
-" strexeq %0, %2, [%1]"
- : "=&r" (tmp)
- : "r" (&rw->lock), "r" (0x80000000)
- : "cc");
+ do {
+ __asm__ __volatile__(
+ " ldrex %0, [%2]\n"
+ " mov %1, #0\n"
+ " teq %0, #0\n"
+ " strexeq %1, %3, [%2]"
+ : "=&r" (contended), "=&r" (res)
+ : "r" (&rw->lock), "r" (0x80000000)
+ : "cc");
+ } while (res);
- if (tmp == 0) {
+ if (!contended) {
smp_mb();
return 1;
} else {
@@ -254,18 +257,26 @@
static inline int arch_read_trylock(arch_rwlock_t *rw)
{
- unsigned long tmp, tmp2 = 1;
+ unsigned long contended, res;
- __asm__ __volatile__(
-" ldrex %0, [%2]\n"
-" adds %0, %0, #1\n"
-" strexpl %1, %0, [%2]\n"
- : "=&r" (tmp), "+r" (tmp2)
- : "r" (&rw->lock)
- : "cc");
+ do {
+ __asm__ __volatile__(
+ " ldrex %0, [%2]\n"
+ " mov %1, #0\n"
+ " adds %0, %0, #1\n"
+ " strexpl %1, %0, [%2]"
+ : "=&r" (contended), "=&r" (res)
+ : "r" (&rw->lock)
+ : "cc");
+ } while (res);
- smp_mb();
- return tmp2 == 0;
+ /* If the lock is negative, then it is already held for write. */
+ if (contended < 0x80000000) {
+ smp_mb();
+ return 1;
+ } else {
+ return 0;
+ }
}
/* read_can_lock - would read_trylock() succeed? */
diff --git a/arch/arm/include/asm/tlb.h b/arch/arm/include/asm/tlb.h
index 46e7cfb..0baf7f0 100644
--- a/arch/arm/include/asm/tlb.h
+++ b/arch/arm/include/asm/tlb.h
@@ -43,6 +43,7 @@
struct mm_struct *mm;
unsigned int fullmm;
struct vm_area_struct *vma;
+ unsigned long start, end;
unsigned long range_start;
unsigned long range_end;
unsigned int nr;
@@ -107,10 +108,12 @@
}
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned int fullmm)
+tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
{
tlb->mm = mm;
- tlb->fullmm = fullmm;
+ tlb->fullmm = !(start | (end+1));
+ tlb->start = start;
+ tlb->end = end;
tlb->vma = NULL;
tlb->max = ARRAY_SIZE(tlb->local);
tlb->pages = tlb->local;
diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index 5859c8b..2ee8a17 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -169,6 +169,11 @@
}
}
+bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
+{
+ return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu);
+}
+
/**
* setup_machine_fdt - Machine setup when an dtb was passed to the kernel
* @dt_phys: physical address of dt blob
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index d40d0ef..9cbe70c 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -357,7 +357,8 @@
.endm
.macro kuser_cmpxchg_check
-#if !defined(CONFIG_CPU_32v6K) && !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
+#if !defined(CONFIG_CPU_32v6K) && defined(CONFIG_KUSER_HELPERS) && \
+ !defined(CONFIG_NEEDS_SYSCALL_FOR_CMPXCHG)
#ifndef CONFIG_MMU
#warning "NPTL on non MMU needs fixing"
#else
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index 25442f4..918875d 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -84,17 +84,14 @@
void set_fiq_handler(void *start, unsigned int length)
{
-#if defined(CONFIG_CPU_USE_DOMAINS)
- void *base = (void *)0xffff0000;
-#else
void *base = vectors_page;
-#endif
unsigned offset = FIQ_OFFSET;
memcpy(base + offset, start, length);
+ if (!cache_is_vipt_nonaliasing())
+ flush_icache_range((unsigned long)base + offset, offset +
+ length);
flush_icache_range(0xffff0000 + offset, 0xffff0000 + offset + length);
- if (!vectors_high())
- flush_icache_range(offset, offset + length);
}
int claim_fiq(struct fiq_handler *f)
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index 4fb074c..57221e3 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -15,6 +15,7 @@
#include <asm/mmu_context.h>
#include <asm/cacheflush.h>
#include <asm/mach-types.h>
+#include <asm/smp_plat.h>
#include <asm/system_misc.h>
extern const unsigned char relocate_new_kernel[];
@@ -39,6 +40,14 @@
int i, err;
/*
+ * Validate that if the current HW supports SMP, then the SW supports
+ * and implements CPU hotplug for the current HW. If not, we won't be
+ * able to kexec reliably, so fail the prepare operation.
+ */
+ if (num_possible_cpus() > 1 && !platform_can_cpu_hotplug())
+ return -EINVAL;
+
+ /*
* No segment at default ATAGs address. try to locate
* a dtb using magic.
*/
@@ -73,6 +82,7 @@
crash_save_cpu(®s, smp_processor_id());
flush_cache_all();
+ set_cpu_online(smp_processor_id(), false);
atomic_dec(&waiting_for_crash_ipi);
while (1)
cpu_relax();
@@ -134,10 +144,13 @@
unsigned long reboot_code_buffer_phys;
void *reboot_code_buffer;
- if (num_online_cpus() > 1) {
- pr_err("kexec: error: multiple CPUs still online\n");
- return;
- }
+ /*
+ * This can only happen if machine_shutdown() failed to disable some
+ * CPU, and that can only happen if the checks in
+ * machine_kexec_prepare() were not correct. If this fails, we can't
+ * reliably kexec anyway, so BUG_ON is appropriate.
+ */
+ BUG_ON(num_online_cpus() > 1);
page_list = image->head & PAGE_MASK;
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index d9f5cd4..e186ee1 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -53,7 +53,12 @@
static int
armpmu_map_hw_event(const unsigned (*event_map)[PERF_COUNT_HW_MAX], u64 config)
{
- int mapping = (*event_map)[config];
+ int mapping;
+
+ if (config >= PERF_COUNT_HW_MAX)
+ return -EINVAL;
+
+ mapping = (*event_map)[config];
return mapping == HW_OP_UNSUPPORTED ? -ENOENT : mapping;
}
@@ -253,6 +258,9 @@
struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
struct pmu *leader_pmu = event->group_leader->pmu;
+ if (is_software_event(event))
+ return 1;
+
if (event->pmu != leader_pmu || event->state < PERF_EVENT_STATE_OFF)
return 1;
diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
index 536c85f..94f6b05 100644
--- a/arch/arm/kernel/process.c
+++ b/arch/arm/kernel/process.c
@@ -462,7 +462,7 @@
{
return in_gate_area(NULL, addr);
}
-#define is_gate_vma(vma) ((vma) = &gate_vma)
+#define is_gate_vma(vma) ((vma) == &gate_vma)
#else
#define is_gate_vma(vma) 0
#endif
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index c2b4f8f..2dc19349e 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -145,6 +145,16 @@
return -ENOSYS;
}
+int platform_can_cpu_hotplug(void)
+{
+#ifdef CONFIG_HOTPLUG_CPU
+ if (smp_ops.cpu_kill)
+ return 1;
+#endif
+
+ return 0;
+}
+
#ifdef CONFIG_HOTPLUG_CPU
static void percpu_timer_stop(void);
diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index c5a5954..85a8737 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -74,12 +74,8 @@
{NULL, },
};
-struct cpu_capacity {
- unsigned long hwid;
- unsigned long capacity;
-};
-
-struct cpu_capacity *cpu_capacity;
+unsigned long *__cpu_capacity;
+#define cpu_capacity(cpu) __cpu_capacity[cpu]
unsigned long middle_capacity = 1;
@@ -100,15 +96,19 @@
unsigned long capacity = 0;
int alloc_size, cpu = 0;
- alloc_size = nr_cpu_ids * sizeof(struct cpu_capacity);
- cpu_capacity = kzalloc(alloc_size, GFP_NOWAIT);
+ alloc_size = nr_cpu_ids * sizeof(*__cpu_capacity);
+ __cpu_capacity = kzalloc(alloc_size, GFP_NOWAIT);
- while ((cn = of_find_node_by_type(cn, "cpu"))) {
- const u32 *rate, *reg;
+ for_each_possible_cpu(cpu) {
+ const u32 *rate;
int len;
- if (cpu >= num_possible_cpus())
- break;
+ /* too early to use cpu->of_node */
+ cn = of_get_cpu_node(cpu, NULL);
+ if (!cn) {
+ pr_err("missing device node for CPU %d\n", cpu);
+ continue;
+ }
for (cpu_eff = table_efficiency; cpu_eff->compatible; cpu_eff++)
if (of_device_is_compatible(cn, cpu_eff->compatible))
@@ -124,12 +124,6 @@
continue;
}
- reg = of_get_property(cn, "reg", &len);
- if (!reg || len != 4) {
- pr_err("%s missing reg property\n", cn->full_name);
- continue;
- }
-
capacity = ((be32_to_cpup(rate)) >> 20) * cpu_eff->efficiency;
/* Save min capacity of the system */
@@ -140,13 +134,9 @@
if (capacity > max_capacity)
max_capacity = capacity;
- cpu_capacity[cpu].capacity = capacity;
- cpu_capacity[cpu++].hwid = be32_to_cpup(reg);
+ cpu_capacity(cpu) = capacity;
}
- if (cpu < num_possible_cpus())
- cpu_capacity[cpu].hwid = (unsigned long)(-1);
-
/* If min and max capacities are equals, we bypass the update of the
* cpu_scale because all CPUs have the same capacity. Otherwise, we
* compute a middle_capacity factor that will ensure that the capacity
@@ -154,9 +144,7 @@
* SCHED_POWER_SCALE, which is the default value, but with the
* constraint explained near table_efficiency[].
*/
- if (min_capacity == max_capacity)
- cpu_capacity[0].hwid = (unsigned long)(-1);
- else if (4*max_capacity < (3*(max_capacity + min_capacity)))
+ if (4*max_capacity < (3*(max_capacity + min_capacity)))
middle_capacity = (min_capacity + max_capacity)
>> (SCHED_POWER_SHIFT+1);
else
@@ -170,23 +158,12 @@
* boot. The update of all CPUs is in O(n^2) for heteregeneous system but the
* function returns directly for SMP system.
*/
-void update_cpu_power(unsigned int cpu, unsigned long hwid)
+void update_cpu_power(unsigned int cpu)
{
- unsigned int idx = 0;
-
- /* look for the cpu's hwid in the cpu capacity table */
- for (idx = 0; idx < num_possible_cpus(); idx++) {
- if (cpu_capacity[idx].hwid == hwid)
- break;
-
- if (cpu_capacity[idx].hwid == -1)
- return;
- }
-
- if (idx == num_possible_cpus())
+ if (!cpu_capacity(cpu))
return;
- set_power_scale(cpu, cpu_capacity[idx].capacity / middle_capacity);
+ set_power_scale(cpu, cpu_capacity(cpu) / middle_capacity);
printk(KERN_INFO "CPU%u: update cpu_power %lu\n",
cpu, arch_scale_freq_power(NULL, cpu));
@@ -194,7 +171,7 @@
#else
static inline void parse_dt_topology(void) {}
-static inline void update_cpu_power(unsigned int cpuid, unsigned int mpidr) {}
+static inline void update_cpu_power(unsigned int cpuid) {}
#endif
/*
@@ -281,7 +258,7 @@
update_siblings_masks(cpuid);
- update_cpu_power(cpuid, mpidr & MPIDR_HWID_BITMASK);
+ update_cpu_power(cpuid);
printk(KERN_INFO "CPU%u: thread %d, cpu %d, socket %d, mpidr %x\n",
cpuid, cpu_topology[cpuid].thread_id,
diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c
index 4a51990..db9cf69 100644
--- a/arch/arm/kvm/coproc.c
+++ b/arch/arm/kvm/coproc.c
@@ -146,7 +146,11 @@
#define access_pmintenclr pm_fake
/* Architected CP15 registers.
- * Important: Must be sorted ascending by CRn, CRM, Op1, Op2
+ * CRn denotes the primary register number, but is copied to the CRm in the
+ * user space API for 64-bit register access in line with the terminology used
+ * in the ARM ARM.
+ * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 and with 64-bit
+ * registers preceding 32-bit ones.
*/
static const struct coproc_reg cp15_regs[] = {
/* CSSELR: swapped by interrupt.S. */
@@ -154,8 +158,8 @@
NULL, reset_unknown, c0_CSSELR },
/* TTBR0/TTBR1: swapped by interrupt.S. */
- { CRm( 2), Op1( 0), is64, NULL, reset_unknown64, c2_TTBR0 },
- { CRm( 2), Op1( 1), is64, NULL, reset_unknown64, c2_TTBR1 },
+ { CRm64( 2), Op1( 0), is64, NULL, reset_unknown64, c2_TTBR0 },
+ { CRm64( 2), Op1( 1), is64, NULL, reset_unknown64, c2_TTBR1 },
/* TTBCR: swapped by interrupt.S. */
{ CRn( 2), CRm( 0), Op1( 0), Op2( 2), is32,
@@ -182,7 +186,7 @@
NULL, reset_unknown, c6_IFAR },
/* PAR swapped by interrupt.S */
- { CRn( 7), Op1( 0), is64, NULL, reset_unknown64, c7_PAR },
+ { CRm64( 7), Op1( 0), is64, NULL, reset_unknown64, c7_PAR },
/*
* DC{C,I,CI}SW operations:
@@ -399,12 +403,13 @@
| KVM_REG_ARM_OPC1_MASK))
return false;
params->is_64bit = true;
- params->CRm = ((id & KVM_REG_ARM_CRM_MASK)
+ /* CRm to CRn: see cp15_to_index for details */
+ params->CRn = ((id & KVM_REG_ARM_CRM_MASK)
>> KVM_REG_ARM_CRM_SHIFT);
params->Op1 = ((id & KVM_REG_ARM_OPC1_MASK)
>> KVM_REG_ARM_OPC1_SHIFT);
params->Op2 = 0;
- params->CRn = 0;
+ params->CRm = 0;
return true;
default:
return false;
@@ -898,7 +903,14 @@
if (reg->is_64) {
val |= KVM_REG_SIZE_U64;
val |= (reg->Op1 << KVM_REG_ARM_OPC1_SHIFT);
- val |= (reg->CRm << KVM_REG_ARM_CRM_SHIFT);
+ /*
+ * CRn always denotes the primary coproc. reg. nr. for the
+ * in-kernel representation, but the user space API uses the
+ * CRm for the encoding, because it is modelled after the
+ * MRRC/MCRR instructions: see the ARM ARM rev. c page
+ * B3-1445
+ */
+ val |= (reg->CRn << KVM_REG_ARM_CRM_SHIFT);
} else {
val |= KVM_REG_SIZE_U32;
val |= (reg->Op1 << KVM_REG_ARM_OPC1_SHIFT);
diff --git a/arch/arm/kvm/coproc.h b/arch/arm/kvm/coproc.h
index b7301d3..0461d5c 100644
--- a/arch/arm/kvm/coproc.h
+++ b/arch/arm/kvm/coproc.h
@@ -135,6 +135,8 @@
return -1;
if (i1->CRn != i2->CRn)
return i1->CRn - i2->CRn;
+ if (i1->is_64 != i2->is_64)
+ return i2->is_64 - i1->is_64;
if (i1->CRm != i2->CRm)
return i1->CRm - i2->CRm;
if (i1->Op1 != i2->Op1)
@@ -145,6 +147,7 @@
#define CRn(_x) .CRn = _x
#define CRm(_x) .CRm = _x
+#define CRm64(_x) .CRn = _x, .CRm = 0
#define Op1(_x) .Op1 = _x
#define Op2(_x) .Op2 = _x
#define is64 .is_64 = true
diff --git a/arch/arm/kvm/coproc_a15.c b/arch/arm/kvm/coproc_a15.c
index 685063a..cf93472 100644
--- a/arch/arm/kvm/coproc_a15.c
+++ b/arch/arm/kvm/coproc_a15.c
@@ -114,7 +114,11 @@
/*
* A15-specific CP15 registers.
- * Important: Must be sorted ascending by CRn, CRM, Op1, Op2
+ * CRn denotes the primary register number, but is copied to the CRm in the
+ * user space API for 64-bit register access in line with the terminology used
+ * in the ARM ARM.
+ * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 and with 64-bit
+ * registers preceding 32-bit ones.
*/
static const struct coproc_reg a15_regs[] = {
/* MPIDR: we use VMPIDR for guest access. */
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c
index b8e06b7..0c25d94 100644
--- a/arch/arm/kvm/mmio.c
+++ b/arch/arm/kvm/mmio.c
@@ -63,7 +63,8 @@
static int decode_hsr(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
struct kvm_exit_mmio *mmio)
{
- unsigned long rt, len;
+ unsigned long rt;
+ int len;
bool is_write, sign_extend;
if (kvm_vcpu_dabt_isextabt(vcpu)) {
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index ca6bea4..0988d9e 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -85,6 +85,12 @@
return p;
}
+static bool page_empty(void *ptr)
+{
+ struct page *ptr_page = virt_to_page(ptr);
+ return page_count(ptr_page) == 1;
+}
+
static void clear_pud_entry(struct kvm *kvm, pud_t *pud, phys_addr_t addr)
{
pmd_t *pmd_table = pmd_offset(pud, 0);
@@ -103,12 +109,6 @@
put_page(virt_to_page(pmd));
}
-static bool pmd_empty(pmd_t *pmd)
-{
- struct page *pmd_page = virt_to_page(pmd);
- return page_count(pmd_page) == 1;
-}
-
static void clear_pte_entry(struct kvm *kvm, pte_t *pte, phys_addr_t addr)
{
if (pte_present(*pte)) {
@@ -118,12 +118,6 @@
}
}
-static bool pte_empty(pte_t *pte)
-{
- struct page *pte_page = virt_to_page(pte);
- return page_count(pte_page) == 1;
-}
-
static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
unsigned long long start, u64 size)
{
@@ -132,37 +126,37 @@
pmd_t *pmd;
pte_t *pte;
unsigned long long addr = start, end = start + size;
- u64 range;
+ u64 next;
while (addr < end) {
pgd = pgdp + pgd_index(addr);
pud = pud_offset(pgd, addr);
if (pud_none(*pud)) {
- addr += PUD_SIZE;
+ addr = pud_addr_end(addr, end);
continue;
}
pmd = pmd_offset(pud, addr);
if (pmd_none(*pmd)) {
- addr += PMD_SIZE;
+ addr = pmd_addr_end(addr, end);
continue;
}
pte = pte_offset_kernel(pmd, addr);
clear_pte_entry(kvm, pte, addr);
- range = PAGE_SIZE;
+ next = addr + PAGE_SIZE;
/* If we emptied the pte, walk back up the ladder */
- if (pte_empty(pte)) {
+ if (page_empty(pte)) {
clear_pmd_entry(kvm, pmd, addr);
- range = PMD_SIZE;
- if (pmd_empty(pmd)) {
+ next = pmd_addr_end(addr, end);
+ if (page_empty(pmd) && !page_empty(pud)) {
clear_pud_entry(kvm, pud, addr);
- range = PUD_SIZE;
+ next = pud_addr_end(addr, end);
}
}
- addr += range;
+ addr = next;
}
}
diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c
index 2abee66..916e5a1 100644
--- a/arch/arm/mach-at91/at91sam9x5.c
+++ b/arch/arm/mach-at91/at91sam9x5.c
@@ -227,6 +227,8 @@
CLKDEV_CON_DEV_ID("usart", "f8020000.serial", &usart1_clk),
CLKDEV_CON_DEV_ID("usart", "f8024000.serial", &usart2_clk),
CLKDEV_CON_DEV_ID("usart", "f8028000.serial", &usart3_clk),
+ CLKDEV_CON_DEV_ID("usart", "f8040000.serial", &uart0_clk),
+ CLKDEV_CON_DEV_ID("usart", "f8044000.serial", &uart1_clk),
CLKDEV_CON_DEV_ID("t0_clk", "f8008000.timer", &tcb0_clk),
CLKDEV_CON_DEV_ID("t0_clk", "f800c000.timer", &tcb0_clk),
CLKDEV_CON_DEV_ID("mci_clk", "f0008000.mmc", &mmc0_clk),
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index dff4ddc..139e42d 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -75,6 +75,7 @@
.parts = davinci_nand_partitions,
.nr_parts = ARRAY_SIZE(davinci_nand_partitions),
.ecc_mode = NAND_ECC_HW_SYNDROME,
+ .ecc_bits = 4,
.bbt_options = NAND_BBT_USE_FLASH,
};
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index a33686a..fa4bfaf 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -153,6 +153,7 @@
.parts = davinci_evm_nandflash_partition,
.nr_parts = ARRAY_SIZE(davinci_evm_nandflash_partition),
.ecc_mode = NAND_ECC_HW,
+ .ecc_bits = 1,
.bbt_options = NAND_BBT_USE_FLASH,
.timing = &davinci_evm_nandflash_timing,
};
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index fbb8e5a..0c005e8 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -90,6 +90,7 @@
.parts = davinci_nand_partitions,
.nr_parts = ARRAY_SIZE(davinci_nand_partitions),
.ecc_mode = NAND_ECC_HW,
+ .ecc_bits = 1,
.options = 0,
};
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index 2bc112a..808233b 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -88,6 +88,7 @@
.parts = davinci_ntosd2_nandflash_partition,
.nr_parts = ARRAY_SIZE(davinci_ntosd2_nandflash_partition),
.ecc_mode = NAND_ECC_HW,
+ .ecc_bits = 1,
.bbt_options = NAND_BBT_USE_FLASH,
};
diff --git a/arch/arm/mach-davinci/cpuidle.c b/arch/arm/mach-davinci/cpuidle.c
index 36aef3a..f1ac1c9 100644
--- a/arch/arm/mach-davinci/cpuidle.c
+++ b/arch/arm/mach-davinci/cpuidle.c
@@ -65,7 +65,7 @@
.states[1] = {
.enter = davinci_enter_idle,
.exit_latency = 10,
- .target_residency = 100000,
+ .target_residency = 10000,
.flags = CPUIDLE_FLAG_TIME_VALID,
.name = "DDR SR",
.desc = "WFI and DDR Self Refresh",
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 7be13f8..a02f275 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -254,13 +254,12 @@
{
struct device_node *np;
- np = of_find_node_by_path("/cpus/cpu@0");
+ np = of_node_get(cpu_dev->of_node);
if (!np) {
pr_warn("failed to find cpu0 node\n");
return;
}
- cpu_dev->of_node = np;
if (of_init_opp_table(cpu_dev)) {
pr_warn("failed to init OPP table\n");
goto put_node;
diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c
index ce81d30..594b63d 100644
--- a/arch/arm/mach-mvebu/platsmp.c
+++ b/arch/arm/mach-mvebu/platsmp.c
@@ -29,45 +29,40 @@
#include "pmsu.h"
#include "coherency.h"
+static struct clk *__init get_cpu_clk(int cpu)
+{
+ struct clk *cpu_clk;
+ struct device_node *np = of_get_cpu_node(cpu, NULL);
+
+ if (WARN(!np, "missing cpu node\n"))
+ return NULL;
+ cpu_clk = of_clk_get(np, 0);
+ if (WARN_ON(IS_ERR(cpu_clk)))
+ return NULL;
+ return cpu_clk;
+}
+
void __init set_secondary_cpus_clock(void)
{
- int thiscpu;
+ int thiscpu, cpu;
unsigned long rate;
- struct clk *cpu_clk = NULL;
- struct device_node *np = NULL;
+ struct clk *cpu_clk;
thiscpu = smp_processor_id();
- for_each_node_by_type(np, "cpu") {
- int err;
- int cpu;
-
- err = of_property_read_u32(np, "reg", &cpu);
- if (WARN_ON(err))
- return;
-
- if (cpu == thiscpu) {
- cpu_clk = of_clk_get(np, 0);
- break;
- }
- }
- if (WARN_ON(IS_ERR(cpu_clk)))
+ cpu_clk = get_cpu_clk(thiscpu);
+ if (!cpu_clk)
return;
clk_prepare_enable(cpu_clk);
rate = clk_get_rate(cpu_clk);
/* set all the other CPU clk to the same rate than the boot CPU */
- for_each_node_by_type(np, "cpu") {
- int err;
- int cpu;
-
- err = of_property_read_u32(np, "reg", &cpu);
- if (WARN_ON(err))
+ for_each_possible_cpu(cpu) {
+ if (cpu == thiscpu)
+ continue;
+ cpu_clk = get_cpu_clk(cpu);
+ if (!cpu_clk)
return;
-
- if (cpu != thiscpu) {
- cpu_clk = of_clk_get(np, 0);
- clk_set_rate(cpu_clk, rate);
- }
+ clk_set_rate(cpu_clk, rate);
}
}
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index f6eeb87..827d150 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -122,11 +122,7 @@
};
static struct musb_hdrc_platform_data tusb_data = {
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
.mode = MUSB_OTG,
-#else
- .mode = MUSB_HOST,
-#endif
.set_power = tusb_set_power,
.min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
.power = 100, /* Max 100 mA VBUS for host mode */
diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index d2ea68e..773510556 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -85,7 +85,7 @@
static struct omap_musb_board_data musb_board_data = {
.interface_type = MUSB_INTERFACE_ULPI,
- .mode = MUSB_PERIPHERAL,
+ .mode = MUSB_OTG,
.power = 0,
};
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index 8c4de27..bc89723 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -38,11 +38,8 @@
};
static struct musb_hdrc_platform_data musb_plat = {
-#ifdef CONFIG_USB_GADGET_MUSB_HDRC
.mode = MUSB_OTG,
-#else
- .mode = MUSB_HOST,
-#endif
+
/* .clock is set dynamically */
.config = &musb_config,
diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index bf9b6be..fe1f3e2 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -4,7 +4,6 @@
obj-y := cpu.o devices.o devices-common.o \
id.o usb.o timer.o pm.o
-obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_CACHE_L2X0) += cache-l2x0.o
obj-$(CONFIG_UX500_SOC_DB8500) += cpu-db8500.o devices-db8500.o
obj-$(CONFIG_MACH_MOP500) += board-mop500.o board-mop500-sdi.o \
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index db5c2ca..cd2c88e 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -809,15 +809,18 @@
the CPU type fitted to the system. This permits binaries to be
run on ARMv4 through to ARMv7 without modification.
+ See Documentation/arm/kernel_user_helpers.txt for details.
+
However, the fixed address nature of these helpers can be used
by ROP (return orientated programming) authors when creating
exploits.
If all of the binaries and libraries which run on your platform
are built specifically for your platform, and make no use of
- these helpers, then you can turn this option off. However,
- when such an binary or library is run, it will receive a SIGILL
- signal, which will terminate the program.
+ these helpers, then you can turn this option off to hinder
+ such exploits. However, in that case, if a binary or library
+ relying on those helpers is run, it will receive a SIGILL signal,
+ which will terminate the program.
Say N here only if you are absolutely certain that you do not
need these helpers; otherwise, the safe option is to say Y.
diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c
index 3e5c461..50a3ea0 100644
--- a/arch/arm/plat-samsung/init.c
+++ b/arch/arm/plat-samsung/init.c
@@ -55,12 +55,13 @@
printk("CPU %s (id 0x%08lx)\n", cpu->name, idcode);
- if (cpu->map_io == NULL || cpu->init == NULL) {
+ if (cpu->init == NULL) {
printk(KERN_ERR "CPU %s support not enabled\n", cpu->name);
panic("Unsupported Samsung CPU");
}
- cpu->map_io();
+ if (cpu->map_io)
+ cpu->map_io();
}
/* s3c24xx_init_clocks
diff --git a/arch/arm/xen/enlighten.c b/arch/arm/xen/enlighten.c
index c9770ba..8a6295c 100644
--- a/arch/arm/xen/enlighten.c
+++ b/arch/arm/xen/enlighten.c
@@ -170,6 +170,7 @@
per_cpu(xen_vcpu, cpu) = vcpup;
enable_percpu_irq(xen_events_irq, 0);
+ put_cpu();
}
static void xen_restart(enum reboot_mode reboot_mode, const char *cmd)
diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h
index c92de41..b25763b 100644
--- a/arch/arm64/include/asm/kvm_asm.h
+++ b/arch/arm64/include/asm/kvm_asm.h
@@ -42,14 +42,15 @@
#define TPIDR_EL1 18 /* Thread ID, Privileged */
#define AMAIR_EL1 19 /* Aux Memory Attribute Indirection Register */
#define CNTKCTL_EL1 20 /* Timer Control Register (EL1) */
+#define PAR_EL1 21 /* Physical Address Register */
/* 32bit specific registers. Keep them at the end of the range */
-#define DACR32_EL2 21 /* Domain Access Control Register */
-#define IFSR32_EL2 22 /* Instruction Fault Status Register */
-#define FPEXC32_EL2 23 /* Floating-Point Exception Control Register */
-#define DBGVCR32_EL2 24 /* Debug Vector Catch Register */
-#define TEECR32_EL1 25 /* ThumbEE Configuration Register */
-#define TEEHBR32_EL1 26 /* ThumbEE Handler Base Register */
-#define NR_SYS_REGS 27
+#define DACR32_EL2 22 /* Domain Access Control Register */
+#define IFSR32_EL2 23 /* Instruction Fault Status Register */
+#define FPEXC32_EL2 24 /* Floating-Point Exception Control Register */
+#define DBGVCR32_EL2 25 /* Debug Vector Catch Register */
+#define TEECR32_EL1 26 /* ThumbEE Configuration Register */
+#define TEEHBR32_EL1 27 /* ThumbEE Handler Base Register */
+#define NR_SYS_REGS 28
/* 32bit mapping */
#define c0_MPIDR (MPIDR_EL1 * 2) /* MultiProcessor ID Register */
@@ -69,6 +70,8 @@
#define c5_AIFSR (AFSR1_EL1 * 2) /* Auxiliary Instr Fault Status R */
#define c6_DFAR (FAR_EL1 * 2) /* Data Fault Address Register */
#define c6_IFAR (c6_DFAR + 1) /* Instruction Fault Address Register */
+#define c7_PAR (PAR_EL1 * 2) /* Physical Address Register */
+#define c7_PAR_high (c7_PAR + 1) /* PAR top 32 bits */
#define c10_PRRR (MAIR_EL1 * 2) /* Primary Region Remap Register */
#define c10_NMRR (c10_PRRR + 1) /* Normal Memory Remap Register */
#define c12_VBAR (VBAR_EL1 * 2) /* Vector Base Address Register */
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 644d739..0859a4d 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -129,7 +129,7 @@
struct kvm_mmu_memory_cache mmu_page_cache;
/* Target CPU and feature flags */
- u32 target;
+ int target;
DECLARE_BITMAP(features, KVM_VCPU_MAX_FEATURES);
/* Detect first run of a vcpu */
diff --git a/arch/arm64/include/asm/tlb.h b/arch/arm64/include/asm/tlb.h
index 46b3beb..717031a 100644
--- a/arch/arm64/include/asm/tlb.h
+++ b/arch/arm64/include/asm/tlb.h
@@ -35,6 +35,7 @@
struct mm_struct *mm;
unsigned int fullmm;
struct vm_area_struct *vma;
+ unsigned long start, end;
unsigned long range_start;
unsigned long range_end;
unsigned int nr;
@@ -97,10 +98,12 @@
}
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned int fullmm)
+tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
{
tlb->mm = mm;
- tlb->fullmm = fullmm;
+ tlb->fullmm = !(start | (end+1));
+ tlb->start = start;
+ tlb->end = end;
tlb->vma = NULL;
tlb->max = ARRAY_SIZE(tlb->local);
tlb->pages = tlb->local;
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index 9ba33c4..12e6ccb 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -107,7 +107,12 @@
static int
armpmu_map_event(const unsigned (*event_map)[PERF_COUNT_HW_MAX], u64 config)
{
- int mapping = (*event_map)[config];
+ int mapping;
+
+ if (config >= PERF_COUNT_HW_MAX)
+ return -EINVAL;
+
+ mapping = (*event_map)[config];
return mapping == HW_OP_UNSUPPORTED ? -ENOENT : mapping;
}
@@ -317,6 +322,9 @@
struct hw_perf_event fake_event = event->hw;
struct pmu *leader_pmu = event->group_leader->pmu;
+ if (is_software_event(event))
+ return 1;
+
if (event->pmu != leader_pmu || event->state <= PERF_EVENT_STATE_OFF)
return 1;
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index ff985e3..1ac0bbb 100644
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -214,6 +214,7 @@
mrs x21, tpidr_el1
mrs x22, amair_el1
mrs x23, cntkctl_el1
+ mrs x24, par_el1
stp x4, x5, [x3]
stp x6, x7, [x3, #16]
@@ -225,6 +226,7 @@
stp x18, x19, [x3, #112]
stp x20, x21, [x3, #128]
stp x22, x23, [x3, #144]
+ str x24, [x3, #160]
.endm
.macro restore_sysregs
@@ -243,6 +245,7 @@
ldp x18, x19, [x3, #112]
ldp x20, x21, [x3, #128]
ldp x22, x23, [x3, #144]
+ ldr x24, [x3, #160]
msr vmpidr_el2, x4
msr csselr_el1, x5
@@ -264,6 +267,7 @@
msr tpidr_el1, x21
msr amair_el1, x22
msr cntkctl_el1, x23
+ msr par_el1, x24
.endm
.macro skip_32bit_state tmp, target
@@ -600,6 +604,8 @@
// void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
ENTRY(__kvm_tlb_flush_vmid_ipa)
+ dsb ishst
+
kern_hyp_va x0
ldr x2, [x0, #KVM_VTTBR]
msr vttbr_el2, x2
@@ -621,6 +627,7 @@
ENDPROC(__kvm_tlb_flush_vmid_ipa)
ENTRY(__kvm_flush_vm_context)
+ dsb ishst
tlbi alle1is
ic ialluis
dsb sy
@@ -753,6 +760,10 @@
*/
tbnz x1, #7, 1f // S1PTW is set
+ /* Preserve PAR_EL1 */
+ mrs x3, par_el1
+ push x3, xzr
+
/*
* Permission fault, HPFAR_EL2 is invalid.
* Resolve the IPA the hard way using the guest VA.
@@ -766,6 +777,8 @@
/* Read result */
mrs x3, par_el1
+ pop x0, xzr // Restore PAR_EL1 from the stack
+ msr par_el1, x0
tbnz x3, #0, 3f // Bail out if we failed the translation
ubfx x3, x3, #12, #36 // Extract IPA
lsl x3, x3, #4 // and present it like HPFAR
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index 9492360..02e9d09 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -211,6 +211,9 @@
/* FAR_EL1 */
{ Op0(0b11), Op1(0b000), CRn(0b0110), CRm(0b0000), Op2(0b000),
NULL, reset_unknown, FAR_EL1 },
+ /* PAR_EL1 */
+ { Op0(0b11), Op1(0b000), CRn(0b0111), CRm(0b0100), Op2(0b000),
+ NULL, reset_unknown, PAR_EL1 },
/* PMINTENSET_EL1 */
{ Op0(0b11), Op1(0b000), CRn(0b1001), CRm(0b1110), Op2(0b001),
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 33a9792..77d442a 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -158,6 +158,7 @@
endmenu
source "init/Kconfig"
+source "kernel/Kconfig.freezer"
source "drivers/Kconfig"
source "fs/Kconfig"
diff --git a/arch/ia64/include/asm/tlb.h b/arch/ia64/include/asm/tlb.h
index ef3a9de..bc5efc7 100644
--- a/arch/ia64/include/asm/tlb.h
+++ b/arch/ia64/include/asm/tlb.h
@@ -22,7 +22,7 @@
* unmapping a portion of the virtual address space, these hooks are called according to
* the following template:
*
- * tlb <- tlb_gather_mmu(mm, full_mm_flush); // start unmap for address space MM
+ * tlb <- tlb_gather_mmu(mm, start, end); // start unmap for address space MM
* {
* for each vma that needs a shootdown do {
* tlb_start_vma(tlb, vma);
@@ -58,6 +58,7 @@
unsigned int max;
unsigned char fullmm; /* non-zero means full mm flush */
unsigned char need_flush; /* really unmapped some PTEs? */
+ unsigned long start, end;
unsigned long start_addr;
unsigned long end_addr;
struct page **pages;
@@ -155,13 +156,15 @@
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned int full_mm_flush)
+tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
{
tlb->mm = mm;
tlb->max = ARRAY_SIZE(tlb->local);
tlb->pages = tlb->local;
tlb->nr = 0;
- tlb->fullmm = full_mm_flush;
+ tlb->fullmm = !(start | (end+1));
+ tlb->start = start;
+ tlb->end = end;
tlb->start_addr = ~0UL;
}
diff --git a/arch/m68k/emu/natfeat.c b/arch/m68k/emu/natfeat.c
index 2291a7d..fa277ae 100644
--- a/arch/m68k/emu/natfeat.c
+++ b/arch/m68k/emu/natfeat.c
@@ -18,9 +18,11 @@
#include <asm/machdep.h>
#include <asm/natfeat.h>
+extern long nf_get_id2(const char *feature_name);
+
asm("\n"
-" .global nf_get_id,nf_call\n"
-"nf_get_id:\n"
+" .global nf_get_id2,nf_call\n"
+"nf_get_id2:\n"
" .short 0x7300\n"
" rts\n"
"nf_call:\n"
@@ -29,12 +31,25 @@
"1: moveq.l #0,%d0\n"
" rts\n"
" .section __ex_table,\"a\"\n"
-" .long nf_get_id,1b\n"
+" .long nf_get_id2,1b\n"
" .long nf_call,1b\n"
" .previous");
-EXPORT_SYMBOL_GPL(nf_get_id);
EXPORT_SYMBOL_GPL(nf_call);
+long nf_get_id(const char *feature_name)
+{
+ /* feature_name may be in vmalloc()ed memory, so make a copy */
+ char name_copy[32];
+ size_t n;
+
+ n = strlcpy(name_copy, feature_name, sizeof(name_copy));
+ if (n >= sizeof(name_copy))
+ return 0;
+
+ return nf_get_id2(name_copy);
+}
+EXPORT_SYMBOL_GPL(nf_get_id);
+
void nfprint(const char *fmt, ...)
{
static char buf[256];
diff --git a/arch/m68k/include/asm/div64.h b/arch/m68k/include/asm/div64.h
index 444ea8a..ef881cf 100644
--- a/arch/m68k/include/asm/div64.h
+++ b/arch/m68k/include/asm/div64.h
@@ -15,16 +15,17 @@
unsigned long long n64; \
} __n; \
unsigned long __rem, __upper; \
+ unsigned long __base = (base); \
\
__n.n64 = (n); \
if ((__upper = __n.n32[0])) { \
asm ("divul.l %2,%1:%0" \
- : "=d" (__n.n32[0]), "=d" (__upper) \
- : "d" (base), "0" (__n.n32[0])); \
+ : "=d" (__n.n32[0]), "=d" (__upper) \
+ : "d" (__base), "0" (__n.n32[0])); \
} \
asm ("divu.l %2,%1:%0" \
- : "=d" (__n.n32[1]), "=d" (__rem) \
- : "d" (base), "1" (__upper), "0" (__n.n32[1])); \
+ : "=d" (__n.n32[1]), "=d" (__rem) \
+ : "d" (__base), "1" (__upper), "0" (__n.n32[1])); \
(n) = __n.n64; \
__rem; \
})
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d22a4ec..4fab522 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -28,7 +28,7 @@
select GENERIC_CLOCKEVENTS
select GENERIC_IDLE_POLL_SETUP
select MODULES_USE_ELF_RELA
- select CLONE_BACKWARDS
+ select CLONE_BACKWARDS3
config SWAP
def_bool n
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index 20c5e8e..9977816 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -50,9 +50,6 @@
extern void kdump_move_device_tree(void);
-/* CPU OF node matching */
-struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
-
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index e773659..46048d2 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -803,6 +803,32 @@
dec_insn.next_pc_inc;
return 1;
break;
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+ case lwc2_op: /* This is bbit0 on Octeon */
+ if ((regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt)) == 0)
+ *contpc = regs->cp0_epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ *contpc = regs->cp0_epc + 8;
+ return 1;
+ case ldc2_op: /* This is bbit032 on Octeon */
+ if ((regs->regs[insn.i_format.rs] & (1ull<<(insn.i_format.rt + 32))) == 0)
+ *contpc = regs->cp0_epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ *contpc = regs->cp0_epc + 8;
+ return 1;
+ case swc2_op: /* This is bbit1 on Octeon */
+ if (regs->regs[insn.i_format.rs] & (1ull<<insn.i_format.rt))
+ *contpc = regs->cp0_epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ *contpc = regs->cp0_epc + 8;
+ return 1;
+ case sdc2_op: /* This is bbit132 on Octeon */
+ if (regs->regs[insn.i_format.rs] & (1ull<<(insn.i_format.rt + 32)))
+ *contpc = regs->cp0_epc + 4 + (insn.i_format.simmediate << 2);
+ else
+ *contpc = regs->cp0_epc + 8;
+ return 1;
+#endif
case cop0_op:
case cop1_op:
case cop2_op:
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 99dbab1..d60bf98 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -55,6 +55,7 @@
source "init/Kconfig"
+source "kernel/Kconfig.freezer"
menu "Processor type and features"
diff --git a/arch/openrisc/include/asm/prom.h b/arch/openrisc/include/asm/prom.h
index bbb34e5..eb59bfe 100644
--- a/arch/openrisc/include/asm/prom.h
+++ b/arch/openrisc/include/asm/prom.h
@@ -44,9 +44,6 @@
extern void kdump_move_device_tree(void);
-/* CPU OF node matching */
-struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
-
/* Get the MAC address */
extern const void *of_get_mac_address(struct device_node *np);
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index bc2da15..ac204e0 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -43,9 +43,6 @@
extern void kdump_move_device_tree(void);
-/* CPU OF node matching */
-struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
-
/* cache lookup */
struct device_node *of_find_next_cache_node(struct device_node *np);
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index eb23ac9..1c14cd4 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -865,49 +865,10 @@
__initcall(prom_reconfig_setup);
#endif
-/* Find the device node for a given logical cpu number, also returns the cpu
- * local thread number (index in ibm,interrupt-server#s) if relevant and
- * asked for (non NULL)
- */
-struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
+bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
{
- int hardid;
- struct device_node *np;
-
- hardid = get_hard_smp_processor_id(cpu);
-
- for_each_node_by_type(np, "cpu") {
- const u32 *intserv;
- unsigned int plen, t;
-
- /* Check for ibm,ppc-interrupt-server#s. If it doesn't exist
- * fallback to "reg" property and assume no threads
- */
- intserv = of_get_property(np, "ibm,ppc-interrupt-server#s",
- &plen);
- if (intserv == NULL) {
- const u32 *reg = of_get_property(np, "reg", NULL);
- if (reg == NULL)
- continue;
- if (*reg == hardid) {
- if (thread)
- *thread = 0;
- return np;
- }
- } else {
- plen /= sizeof(u32);
- for (t = 0; t < plen; t++) {
- if (hardid == intserv[t]) {
- if (thread)
- *thread = t;
- return np;
- }
- }
- }
- }
- return NULL;
+ return (int)phys_id == get_hard_smp_processor_id(cpu);
}
-EXPORT_SYMBOL(of_get_cpu_node);
#if defined(CONFIG_DEBUG_FS) && defined(DEBUG)
static struct debugfs_blob_wrapper flat_dt_blob;
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index b75d7d6..6d6d92b 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -32,6 +32,7 @@
struct mm_struct *mm;
struct mmu_table_batch *batch;
unsigned int fullmm;
+ unsigned long start, end;
};
struct mmu_table_batch {
@@ -48,10 +49,13 @@
static inline void tlb_gather_mmu(struct mmu_gather *tlb,
struct mm_struct *mm,
- unsigned int full_mm_flush)
+ unsigned long start,
+ unsigned long end)
{
tlb->mm = mm;
- tlb->fullmm = full_mm_flush;
+ tlb->start = start;
+ tlb->end = end;
+ tlb->fullmm = !(start | (end+1));
tlb->batch = NULL;
if (tlb->fullmm)
__tlb_flush_mm(mm);
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index c8def8b..5fc2375 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -87,6 +87,8 @@
source "init/Kconfig"
+source "kernel/Kconfig.freezer"
+
config MMU
def_bool y
diff --git a/arch/sh/include/asm/tlb.h b/arch/sh/include/asm/tlb.h
index e61d43d..362192e 100644
--- a/arch/sh/include/asm/tlb.h
+++ b/arch/sh/include/asm/tlb.h
@@ -36,10 +36,12 @@
}
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned int full_mm_flush)
+tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
{
tlb->mm = mm;
- tlb->fullmm = full_mm_flush;
+ tlb->start = start;
+ tlb->end = end;
+ tlb->fullmm = !(start | (end+1));
init_tlb_gather(tlb);
}
diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c
index d306225..e3abfd4 100644
--- a/arch/sh/kernel/cpu/shmobile/cpuidle.c
+++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c
@@ -91,13 +91,11 @@
int __init sh_mobile_setup_cpuidle(void)
{
- int ret;
-
if (sh_mobile_sleep_supported & SUSP_SH_SF)
cpuidle_driver.states[1].disabled = false;
if (sh_mobile_sleep_supported & SUSP_SH_STANDBY)
cpuidle_driver.states[2].disabled = false;
- return cpuidle_register(&cpuidle_driver);
+ return cpuidle_register(&cpuidle_driver, NULL);
}
diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h
index 4febacd..29b0301 100644
--- a/arch/um/include/asm/tlb.h
+++ b/arch/um/include/asm/tlb.h
@@ -45,10 +45,12 @@
}
static inline void
-tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned int full_mm_flush)
+tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
{
tlb->mm = mm;
- tlb->fullmm = full_mm_flush;
+ tlb->start = start;
+ tlb->end = end;
+ tlb->fullmm = !(start | (end+1));
init_tlb_gather(tlb);
}
diff --git a/arch/x86/include/asm/bootparam_utils.h b/arch/x86/include/asm/bootparam_utils.h
index 653668d..4a8cb8d 100644
--- a/arch/x86/include/asm/bootparam_utils.h
+++ b/arch/x86/include/asm/bootparam_utils.h
@@ -35,9 +35,9 @@
*/
if (boot_params->sentinel) {
/* fields in boot_params are left uninitialized, clear them */
- memset(&boot_params->olpc_ofw_header, 0,
+ memset(&boot_params->ext_ramdisk_image, 0,
(char *)&boot_params->efi_info -
- (char *)&boot_params->olpc_ofw_header);
+ (char *)&boot_params->ext_ramdisk_image);
memset(&boot_params->kbd_status, 0,
(char *)&boot_params->hdr -
(char *)&boot_params->kbd_status);
diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
index 50e5c58..4c01917 100644
--- a/arch/x86/include/asm/microcode_amd.h
+++ b/arch/x86/include/asm/microcode_amd.h
@@ -59,7 +59,7 @@
extern int __apply_microcode_amd(struct microcode_amd *mc_amd);
extern int apply_microcode_amd(int cpu);
-extern enum ucode_state load_microcode_amd(int cpu, const u8 *data, size_t size);
+extern enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size);
#ifdef CONFIG_MICROCODE_AMD_EARLY
#ifdef CONFIG_X86_32
diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
index f2b489c..3bf2dd0 100644
--- a/arch/x86/include/asm/pgtable-2level.h
+++ b/arch/x86/include/asm/pgtable-2level.h
@@ -55,9 +55,53 @@
#define native_pmdp_get_and_clear(xp) native_local_pmdp_get_and_clear(xp)
#endif
+#ifdef CONFIG_MEM_SOFT_DIRTY
+
+/*
+ * Bits _PAGE_BIT_PRESENT, _PAGE_BIT_FILE, _PAGE_BIT_SOFT_DIRTY and
+ * _PAGE_BIT_PROTNONE are taken, split up the 28 bits of offset
+ * into this range.
+ */
+#define PTE_FILE_MAX_BITS 28
+#define PTE_FILE_SHIFT1 (_PAGE_BIT_PRESENT + 1)
+#define PTE_FILE_SHIFT2 (_PAGE_BIT_FILE + 1)
+#define PTE_FILE_SHIFT3 (_PAGE_BIT_PROTNONE + 1)
+#define PTE_FILE_SHIFT4 (_PAGE_BIT_SOFT_DIRTY + 1)
+#define PTE_FILE_BITS1 (PTE_FILE_SHIFT2 - PTE_FILE_SHIFT1 - 1)
+#define PTE_FILE_BITS2 (PTE_FILE_SHIFT3 - PTE_FILE_SHIFT2 - 1)
+#define PTE_FILE_BITS3 (PTE_FILE_SHIFT4 - PTE_FILE_SHIFT3 - 1)
+
+#define pte_to_pgoff(pte) \
+ ((((pte).pte_low >> (PTE_FILE_SHIFT1)) \
+ & ((1U << PTE_FILE_BITS1) - 1))) \
+ + ((((pte).pte_low >> (PTE_FILE_SHIFT2)) \
+ & ((1U << PTE_FILE_BITS2) - 1)) \
+ << (PTE_FILE_BITS1)) \
+ + ((((pte).pte_low >> (PTE_FILE_SHIFT3)) \
+ & ((1U << PTE_FILE_BITS3) - 1)) \
+ << (PTE_FILE_BITS1 + PTE_FILE_BITS2)) \
+ + ((((pte).pte_low >> (PTE_FILE_SHIFT4))) \
+ << (PTE_FILE_BITS1 + PTE_FILE_BITS2 + PTE_FILE_BITS3))
+
+#define pgoff_to_pte(off) \
+ ((pte_t) { .pte_low = \
+ ((((off)) & ((1U << PTE_FILE_BITS1) - 1)) << PTE_FILE_SHIFT1) \
+ + ((((off) >> PTE_FILE_BITS1) \
+ & ((1U << PTE_FILE_BITS2) - 1)) \
+ << PTE_FILE_SHIFT2) \
+ + ((((off) >> (PTE_FILE_BITS1 + PTE_FILE_BITS2)) \
+ & ((1U << PTE_FILE_BITS3) - 1)) \
+ << PTE_FILE_SHIFT3) \
+ + ((((off) >> \
+ (PTE_FILE_BITS1 + PTE_FILE_BITS2 + PTE_FILE_BITS3))) \
+ << PTE_FILE_SHIFT4) \
+ + _PAGE_FILE })
+
+#else /* CONFIG_MEM_SOFT_DIRTY */
+
/*
* Bits _PAGE_BIT_PRESENT, _PAGE_BIT_FILE and _PAGE_BIT_PROTNONE are taken,
- * split up the 29 bits of offset into this range:
+ * split up the 29 bits of offset into this range.
*/
#define PTE_FILE_MAX_BITS 29
#define PTE_FILE_SHIFT1 (_PAGE_BIT_PRESENT + 1)
@@ -88,6 +132,8 @@
<< PTE_FILE_SHIFT3) \
+ _PAGE_FILE })
+#endif /* CONFIG_MEM_SOFT_DIRTY */
+
/* Encode and de-code a swap entry */
#if _PAGE_BIT_FILE < _PAGE_BIT_PROTNONE
#define SWP_TYPE_BITS (_PAGE_BIT_FILE - _PAGE_BIT_PRESENT - 1)
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index 4cc9f2b..81bb91b 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -179,6 +179,9 @@
/*
* Bits 0, 6 and 7 are taken in the low part of the pte,
* put the 32 bits of offset into the high part.
+ *
+ * For soft-dirty tracking 11 bit is taken from
+ * the low part of pte as well.
*/
#define pte_to_pgoff(pte) ((pte).pte_high)
#define pgoff_to_pte(off) \
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 7dc305a..1c00631 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -314,6 +314,36 @@
return pmd_set_flags(pmd, _PAGE_SOFT_DIRTY);
}
+static inline pte_t pte_swp_mksoft_dirty(pte_t pte)
+{
+ return pte_set_flags(pte, _PAGE_SWP_SOFT_DIRTY);
+}
+
+static inline int pte_swp_soft_dirty(pte_t pte)
+{
+ return pte_flags(pte) & _PAGE_SWP_SOFT_DIRTY;
+}
+
+static inline pte_t pte_swp_clear_soft_dirty(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_SWP_SOFT_DIRTY);
+}
+
+static inline pte_t pte_file_clear_soft_dirty(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_SOFT_DIRTY);
+}
+
+static inline pte_t pte_file_mksoft_dirty(pte_t pte)
+{
+ return pte_set_flags(pte, _PAGE_SOFT_DIRTY);
+}
+
+static inline int pte_file_soft_dirty(pte_t pte)
+{
+ return pte_flags(pte) & _PAGE_SOFT_DIRTY;
+}
+
/*
* Mask out unsupported bits in a present pgprot. Non-present pgprots
* can use those bits for other purposes, so leave them be.
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index c98ac63..f4843e0 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -61,12 +61,27 @@
* they do not conflict with each other.
*/
+#define _PAGE_BIT_SOFT_DIRTY _PAGE_BIT_HIDDEN
+
#ifdef CONFIG_MEM_SOFT_DIRTY
-#define _PAGE_SOFT_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
+#define _PAGE_SOFT_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_SOFT_DIRTY)
#else
#define _PAGE_SOFT_DIRTY (_AT(pteval_t, 0))
#endif
+/*
+ * Tracking soft dirty bit when a page goes to a swap is tricky.
+ * We need a bit which can be stored in pte _and_ not conflict
+ * with swap entry format. On x86 bits 6 and 7 are *not* involved
+ * into swap entry computation, but bit 6 is used for nonlinear
+ * file mapping, so we borrow bit 7 for soft dirty tracking.
+ */
+#ifdef CONFIG_MEM_SOFT_DIRTY
+#define _PAGE_SWP_SOFT_DIRTY _PAGE_PSE
+#else
+#define _PAGE_SWP_SOFT_DIRTY (_AT(pteval_t, 0))
+#endif
+
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
#else
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 24cf5ae..4f4a3d9 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -942,35 +942,6 @@
extern u16 amd_get_nb_id(int cpu);
-struct aperfmperf {
- u64 aperf, mperf;
-};
-
-static inline void get_aperfmperf(struct aperfmperf *am)
-{
- WARN_ON_ONCE(!boot_cpu_has(X86_FEATURE_APERFMPERF));
-
- rdmsrl(MSR_IA32_APERF, am->aperf);
- rdmsrl(MSR_IA32_MPERF, am->mperf);
-}
-
-#define APERFMPERF_SHIFT 10
-
-static inline
-unsigned long calc_aperfmperf_ratio(struct aperfmperf *old,
- struct aperfmperf *new)
-{
- u64 aperf = new->aperf - old->aperf;
- u64 mperf = new->mperf - old->mperf;
- unsigned long ratio = aperf;
-
- mperf >>= APERFMPERF_SHIFT;
- if (mperf)
- ratio = div64_u64(aperf, mperf);
-
- return ratio;
-}
-
extern unsigned long arch_align_stack(unsigned long sp);
extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 33692ea..e3ddd7d 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -233,8 +233,4 @@
#define arch_read_relax(lock) cpu_relax()
#define arch_write_relax(lock) cpu_relax()
-/* The {read|write|spin}_lock() on x86 are full memory barriers. */
-static inline void smp_mb__after_lock(void) { }
-#define ARCH_HAS_SMP_MB_AFTER_LOCK
-
#endif /* _ASM_X86_SPINLOCK_H */
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index f654ece..08a0890 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -512,7 +512,7 @@
static const int amd_erratum_383[];
static const int amd_erratum_400[];
-static bool cpu_has_amd_erratum(const int *erratum);
+static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum);
static void init_amd(struct cpuinfo_x86 *c)
{
@@ -729,11 +729,11 @@
value &= ~(1ULL << 24);
wrmsrl_safe(MSR_AMD64_BU_CFG2, value);
- if (cpu_has_amd_erratum(amd_erratum_383))
+ if (cpu_has_amd_erratum(c, amd_erratum_383))
set_cpu_bug(c, X86_BUG_AMD_TLB_MMATCH);
}
- if (cpu_has_amd_erratum(amd_erratum_400))
+ if (cpu_has_amd_erratum(c, amd_erratum_400))
set_cpu_bug(c, X86_BUG_AMD_APIC_C1E);
rdmsr_safe(MSR_AMD64_PATCH_LEVEL, &c->microcode, &dummy);
@@ -878,23 +878,13 @@
static const int amd_erratum_383[] =
AMD_OSVW_ERRATUM(3, AMD_MODEL_RANGE(0x10, 0, 0, 0xff, 0xf));
-static bool cpu_has_amd_erratum(const int *erratum)
+
+static bool cpu_has_amd_erratum(struct cpuinfo_x86 *cpu, const int *erratum)
{
- struct cpuinfo_x86 *cpu = __this_cpu_ptr(&cpu_info);
int osvw_id = *erratum++;
u32 range;
u32 ms;
- /*
- * If called early enough that current_cpu_data hasn't been initialized
- * yet, fall back to boot_cpu_data.
- */
- if (cpu->x86 == 0)
- cpu = &boot_cpu_data;
-
- if (cpu->x86_vendor != X86_VENDOR_AMD)
- return false;
-
if (osvw_id >= 0 && osvw_id < 65536 &&
cpu_has(cpu, X86_FEATURE_OSVW)) {
u64 osvw_len;
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index fbc9210..a45d8d4 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -2270,6 +2270,7 @@
case 70:
case 71:
case 63:
+ case 69:
x86_pmu.late_ack = true;
memcpy(hw_cache_event_ids, snb_hw_cache_event_ids, sizeof(hw_cache_event_ids));
memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index cad791d..1fb6c72 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -314,8 +314,8 @@
static struct uncore_event_desc snbep_uncore_qpi_events[] = {
INTEL_UNCORE_EVENT_DESC(clockticks, "event=0x14"),
INTEL_UNCORE_EVENT_DESC(txl_flits_active, "event=0x00,umask=0x06"),
- INTEL_UNCORE_EVENT_DESC(drs_data, "event=0x02,umask=0x08"),
- INTEL_UNCORE_EVENT_DESC(ncb_data, "event=0x03,umask=0x04"),
+ INTEL_UNCORE_EVENT_DESC(drs_data, "event=0x102,umask=0x08"),
+ INTEL_UNCORE_EVENT_DESC(ncb_data, "event=0x103,umask=0x04"),
{ /* end: all zeroes */ },
};
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index 7a0adb7..7123b5d 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -145,10 +145,9 @@
return 0;
}
-static unsigned int verify_patch_size(int cpu, u32 patch_size,
+static unsigned int verify_patch_size(u8 family, u32 patch_size,
unsigned int size)
{
- struct cpuinfo_x86 *c = &cpu_data(cpu);
u32 max_size;
#define F1XH_MPB_MAX_SIZE 2048
@@ -156,7 +155,7 @@
#define F15H_MPB_MAX_SIZE 4096
#define F16H_MPB_MAX_SIZE 3458
- switch (c->x86) {
+ switch (family) {
case 0x14:
max_size = F14H_MPB_MAX_SIZE;
break;
@@ -277,9 +276,8 @@
* driver cannot continue functioning normally. In such cases, we tear
* down everything we've used up so far and exit.
*/
-static int verify_and_add_patch(unsigned int cpu, u8 *fw, unsigned int leftover)
+static int verify_and_add_patch(u8 family, u8 *fw, unsigned int leftover)
{
- struct cpuinfo_x86 *c = &cpu_data(cpu);
struct microcode_header_amd *mc_hdr;
struct ucode_patch *patch;
unsigned int patch_size, crnt_size, ret;
@@ -299,7 +297,7 @@
/* check if patch is for the current family */
proc_fam = ((proc_fam >> 8) & 0xf) + ((proc_fam >> 20) & 0xff);
- if (proc_fam != c->x86)
+ if (proc_fam != family)
return crnt_size;
if (mc_hdr->nb_dev_id || mc_hdr->sb_dev_id) {
@@ -308,7 +306,7 @@
return crnt_size;
}
- ret = verify_patch_size(cpu, patch_size, leftover);
+ ret = verify_patch_size(family, patch_size, leftover);
if (!ret) {
pr_err("Patch-ID 0x%08x: size mismatch.\n", mc_hdr->patch_id);
return crnt_size;
@@ -339,7 +337,8 @@
return crnt_size;
}
-static enum ucode_state __load_microcode_amd(int cpu, const u8 *data, size_t size)
+static enum ucode_state __load_microcode_amd(u8 family, const u8 *data,
+ size_t size)
{
enum ucode_state ret = UCODE_ERROR;
unsigned int leftover;
@@ -362,7 +361,7 @@
}
while (leftover) {
- crnt_size = verify_and_add_patch(cpu, fw, leftover);
+ crnt_size = verify_and_add_patch(family, fw, leftover);
if (crnt_size < 0)
return ret;
@@ -373,22 +372,22 @@
return UCODE_OK;
}
-enum ucode_state load_microcode_amd(int cpu, const u8 *data, size_t size)
+enum ucode_state load_microcode_amd(u8 family, const u8 *data, size_t size)
{
enum ucode_state ret;
/* free old equiv table */
free_equiv_cpu_table();
- ret = __load_microcode_amd(cpu, data, size);
+ ret = __load_microcode_amd(family, data, size);
if (ret != UCODE_OK)
cleanup();
#if defined(CONFIG_MICROCODE_AMD_EARLY) && defined(CONFIG_X86_32)
/* save BSP's matching patch for early load */
- if (cpu_data(cpu).cpu_index == boot_cpu_data.cpu_index) {
- struct ucode_patch *p = find_patch(cpu);
+ if (cpu_data(smp_processor_id()).cpu_index == boot_cpu_data.cpu_index) {
+ struct ucode_patch *p = find_patch(smp_processor_id());
if (p) {
memset(amd_bsp_mpb, 0, MPB_MAX_SIZE);
memcpy(amd_bsp_mpb, p->data, min_t(u32, ksize(p->data),
@@ -441,7 +440,7 @@
goto fw_release;
}
- ret = load_microcode_amd(cpu, fw->data, fw->size);
+ ret = load_microcode_amd(c->x86, fw->data, fw->size);
fw_release:
release_firmware(fw);
diff --git a/arch/x86/kernel/microcode_amd_early.c b/arch/x86/kernel/microcode_amd_early.c
index 1d14ffe..6073104 100644
--- a/arch/x86/kernel/microcode_amd_early.c
+++ b/arch/x86/kernel/microcode_amd_early.c
@@ -238,25 +238,17 @@
uci->cpu_sig.sig = cpuid_eax(0x00000001);
}
#else
-static void collect_cpu_info_amd_early(struct cpuinfo_x86 *c,
- struct ucode_cpu_info *uci)
+void load_ucode_amd_ap(void)
{
+ unsigned int cpu = smp_processor_id();
+ struct ucode_cpu_info *uci = ucode_cpu_info + cpu;
u32 rev, eax;
rdmsr(MSR_AMD64_PATCH_LEVEL, rev, eax);
eax = cpuid_eax(0x00000001);
- uci->cpu_sig.sig = eax;
uci->cpu_sig.rev = rev;
- c->microcode = rev;
- c->x86 = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
-}
-
-void load_ucode_amd_ap(void)
-{
- unsigned int cpu = smp_processor_id();
-
- collect_cpu_info_amd_early(&cpu_data(cpu), ucode_cpu_info + cpu);
+ uci->cpu_sig.sig = eax;
if (cpu && !ucode_loaded) {
void *ucode;
@@ -265,8 +257,10 @@
return;
ucode = (void *)(initrd_start + ucode_offset);
- if (load_microcode_amd(0, ucode, ucode_size) != UCODE_OK)
+ eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
+ if (load_microcode_amd(eax, ucode, ucode_size) != UCODE_OK)
return;
+
ucode_loaded = true;
}
@@ -278,6 +272,8 @@
{
enum ucode_state ret;
void *ucode;
+ u32 eax;
+
#ifdef CONFIG_X86_32
unsigned int bsp = boot_cpu_data.cpu_index;
struct ucode_cpu_info *uci = ucode_cpu_info + bsp;
@@ -293,7 +289,10 @@
return 0;
ucode = (void *)(initrd_start + ucode_offset);
- ret = load_microcode_amd(0, ucode, ucode_size);
+ eax = cpuid_eax(0x00000001);
+ eax = ((eax >> 8) & 0xf) + ((eax >> 20) & 0xff);
+
+ ret = load_microcode_amd(eax, ucode, ucode_size);
if (ret != UCODE_OK)
return -EINVAL;
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index dbded5a..30277e2 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -101,7 +101,7 @@
*begin = new_begin;
}
} else {
- *begin = TASK_UNMAPPED_BASE;
+ *begin = current->mm->mmap_legacy_base;
*end = TASK_SIZE;
}
}
diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c
index addf7b5..91a4496 100644
--- a/arch/x86/kernel/tboot.c
+++ b/arch/x86/kernel/tboot.c
@@ -301,6 +301,15 @@
return 0;
}
+static int tboot_extended_sleep(u8 sleep_state, u32 val_a, u32 val_b)
+{
+ if (!tboot_enabled())
+ return 0;
+
+ pr_warning("tboot is not able to suspend on platforms with reduced hardware sleep (ACPIv5)");
+ return -ENODEV;
+}
+
static atomic_t ap_wfs_count;
static int tboot_wait_for_aps(int num_aps)
@@ -422,6 +431,7 @@
#endif
acpi_os_set_prepare_sleep(&tboot_sleep);
+ acpi_os_set_prepare_extended_sleep(&tboot_extended_sleep);
return 0;
}
diff --git a/arch/x86/mm/mmap.c b/arch/x86/mm/mmap.c
index 62c29a5..25e7e13 100644
--- a/arch/x86/mm/mmap.c
+++ b/arch/x86/mm/mmap.c
@@ -112,11 +112,13 @@
*/
void arch_pick_mmap_layout(struct mm_struct *mm)
{
+ mm->mmap_legacy_base = mmap_legacy_base();
+ mm->mmap_base = mmap_base();
+
if (mmap_is_legacy()) {
- mm->mmap_base = mmap_legacy_base();
+ mm->mmap_base = mm->mmap_legacy_base;
mm->get_unmapped_area = arch_get_unmapped_area;
} else {
- mm->mmap_base = mmap_base();
mm->get_unmapped_area = arch_get_unmapped_area_topdown;
}
}
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 94919e3..db6b1ab 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -210,6 +210,8 @@
r = &dev->resource[idx];
if (!r->flags)
continue;
+ if (r->parent) /* Already allocated */
+ continue;
if (!r->start || pci_claim_resource(dev, idx) < 0) {
/*
* Something is wrong with the region.
@@ -318,6 +320,8 @@
r = &dev->resource[PCI_ROM_RESOURCE];
if (!r->flags || !r->start)
return;
+ if (r->parent) /* Already allocated */
+ return;
if (pci_claim_resource(dev, PCI_ROM_RESOURCE) < 0) {
r->end -= r->start;
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 056d11f..8f3eea6 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -313,6 +313,17 @@
e820_add_region(start, end - start, type);
}
+void xen_ignore_unusable(struct e820entry *list, size_t map_size)
+{
+ struct e820entry *entry;
+ unsigned int i;
+
+ for (i = 0, entry = list; i < map_size; i++, entry++) {
+ if (entry->type == E820_UNUSABLE)
+ entry->type = E820_RAM;
+ }
+}
+
/**
* machine_specific_memory_setup - Hook for machine specific memory setup.
**/
@@ -353,6 +364,17 @@
}
BUG_ON(rc);
+ /*
+ * Xen won't allow a 1:1 mapping to be created to UNUSABLE
+ * regions, so if we're using the machine memory map leave the
+ * region as RAM as it is in the pseudo-physical map.
+ *
+ * UNUSABLE regions in domUs are not handled and will need
+ * a patch in the future.
+ */
+ if (xen_initial_domain())
+ xen_ignore_unusable(map, memmap.nr_entries);
+
/* Make sure the Xen-supplied memory map is well-ordered. */
sanitize_e820_map(map, memmap.nr_entries, &memmap.nr_entries);
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index ca92754..b81c88e 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -694,8 +694,15 @@
static int xen_hvm_cpu_up(unsigned int cpu, struct task_struct *tidle)
{
int rc;
- rc = native_cpu_up(cpu, tidle);
- WARN_ON (xen_smp_intr_init(cpu));
+ /*
+ * xen_smp_intr_init() needs to run before native_cpu_up()
+ * so that IPI vectors are set up on the booting CPU before
+ * it is marked online in native_cpu_up().
+ */
+ rc = xen_smp_intr_init(cpu);
+ WARN_ON(rc);
+ if (!rc)
+ rc = native_cpu_up(cpu, tidle);
return rc;
}
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 5a74a9c..f29e06e 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -178,14 +178,17 @@
if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT))
return -ENODEV;
+ cpu_maps_update_begin();
+ cpu_hotplug_begin();
+
ret = acpi_map_lsapic(pr->handle, &pr->id);
if (ret)
- return ret;
+ goto out;
ret = arch_register_cpu(pr->id);
if (ret) {
acpi_unmap_lsapic(pr->id);
- return ret;
+ goto out;
}
/*
@@ -195,7 +198,11 @@
*/
pr_info("CPU%d has been hot-added\n", pr->id);
pr->flags.need_hotplug_init = 1;
- return 0;
+
+out:
+ cpu_hotplug_done();
+ cpu_maps_update_done();
+ return ret;
}
#else
static inline int acpi_processor_hotadd_init(struct acpi_processor *pr)
@@ -452,11 +459,15 @@
per_cpu(processor_device_array, pr->id) = NULL;
per_cpu(processors, pr->id) = NULL;
+ cpu_maps_update_begin();
+ cpu_hotplug_begin();
+
/* Remove the CPU. */
- get_online_cpus();
arch_unregister_cpu(pr->id);
acpi_unmap_lsapic(pr->id);
- put_online_cpus();
+
+ cpu_hotplug_done();
+ cpu_maps_update_done();
try_offline_node(cpu_to_node(pr->id));
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index b8d3811..90e846f 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -138,6 +138,12 @@
*/
u8 ACPI_INIT_GLOBAL(acpi_gbl_disable_ssdt_table_load, FALSE);
+/*
+ * We keep track of the latest version of Windows that has been requested by
+ * the BIOS.
+ */
+u8 ACPI_INIT_GLOBAL(acpi_gbl_osi_data, 0);
+
/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
struct acpi_table_fadt acpi_gbl_FADT;
@@ -285,7 +291,6 @@
ACPI_EXTERN u8 acpi_gbl_step_to_next_call;
ACPI_EXTERN u8 acpi_gbl_acpi_hardware_present;
ACPI_EXTERN u8 acpi_gbl_events_initialized;
-ACPI_EXTERN u8 acpi_gbl_osi_data;
ACPI_EXTERN struct acpi_interface_info *acpi_gbl_supported_interfaces;
ACPI_EXTERN struct acpi_address_range
*acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX];
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index d4a49016..0ed0066 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -942,6 +942,9 @@
#define ACPI_OSI_INVALID 0x01
#define ACPI_OSI_DYNAMIC 0x02
+#define ACPI_OSI_FEATURE 0x04
+#define ACPI_OSI_DEFAULT_INVALID 0x08
+#define ACPI_OSI_OPTIONAL_FEATURE (ACPI_OSI_FEATURE | ACPI_OSI_DEFAULT_INVALID | ACPI_OSI_INVALID)
struct acpi_port_info {
char *name;
@@ -1030,6 +1033,7 @@
u8 type;
u8 flags;
u8 resolved;
+ u8 emitted;
};
/* Values for Flags field above */
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index b83dc32..40b04bd 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -104,8 +104,8 @@
acpi_handle start_object,
u32 max_depth,
u32 flags,
- acpi_walk_callback pre_order_visit,
- acpi_walk_callback post_order_visit,
+ acpi_walk_callback descending_callback,
+ acpi_walk_callback ascending_callback,
void *context, void **return_value);
struct acpi_namespace_node *acpi_ns_get_next_node(struct acpi_namespace_node
diff --git a/drivers/acpi/acpica/actables.h b/drivers/acpi/acpica/actables.h
index 7755e91..c54f42c 100644
--- a/drivers/acpi/acpica/actables.h
+++ b/drivers/acpi/acpica/actables.h
@@ -47,6 +47,13 @@
acpi_status acpi_allocate_root_table(u32 initial_table_count);
/*
+ * tbxfroot - Root pointer utilities
+ */
+acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
+
+u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length);
+
+/*
* tbfadt - FADT parse/convert/validate
*/
void acpi_tb_parse_fadt(u32 table_index);
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 3c76ede..d5a62a6 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -470,6 +470,8 @@
acpi_status acpi_ut_remove_interface(acpi_string interface_name);
+acpi_status acpi_ut_update_interfaces(u8 action);
+
struct acpi_interface_info *acpi_ut_get_interface(acpi_string interface_name);
acpi_status acpi_ut_osi_implementation(struct acpi_walk_state *walk_state);
@@ -616,7 +618,7 @@
acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer);
-void acpi_ut_print_string(char *string, u8 max_length);
+void acpi_ut_print_string(char *string, u16 max_length);
void ut_convert_backslashes(char *pathname);
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index 9037f17..7842700 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -125,7 +125,6 @@
/* GPE block 0 exists (has both length and address > 0) */
register_count0 = (u16)(acpi_gbl_FADT.gpe0_block_length / 2);
-
gpe_number_max =
(register_count0 * ACPI_GPE_REGISTER_WIDTH) - 1;
@@ -204,16 +203,6 @@
goto cleanup;
}
- /* Check for Max GPE number out-of-range */
-
- if (gpe_number_max > ACPI_GPE_MAX) {
- ACPI_ERROR((AE_INFO,
- "Maximum GPE number from FADT is too large: 0x%X",
- gpe_number_max));
- status = AE_BAD_VALUE;
- goto cleanup;
- }
-
cleanup:
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
return_ACPI_STATUS(AE_OK);
diff --git a/drivers/acpi/acpica/exdump.c b/drivers/acpi/acpica/exdump.c
index c740f24..4d046fa 100644
--- a/drivers/acpi/acpica/exdump.c
+++ b/drivers/acpi/acpica/exdump.c
@@ -338,6 +338,7 @@
{
u8 *target;
char *name;
+ const char *reference_name;
u8 count;
if (!info) {
@@ -426,10 +427,9 @@
case ACPI_EXD_REFERENCE:
+ reference_name = acpi_ut_get_reference_name(obj_desc);
acpi_ex_out_string("Class Name",
- ACPI_CAST_PTR(char,
- acpi_ut_get_reference_name
- (obj_desc)));
+ ACPI_CAST_PTR(char, reference_name));
acpi_ex_dump_reference_obj(obj_desc);
break;
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index 814b4a3d..2cdd41d 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -962,10 +962,17 @@
*/
return_desc =
*(operand[0]->reference.where);
- if (return_desc) {
- acpi_ut_add_reference
- (return_desc);
+ if (!return_desc) {
+ /*
+ * Element is NULL, do not allow the dereference.
+ * This provides compatibility with other ACPI
+ * implementations.
+ */
+ return_ACPI_STATUS
+ (AE_AML_UNINITIALIZED_ELEMENT);
}
+
+ acpi_ut_add_reference(return_desc);
break;
default:
@@ -990,11 +997,40 @@
acpi_namespace_node
*)
return_desc);
+ if (!return_desc) {
+ break;
+ }
+
+ /*
+ * June 2013:
+ * buffer_fields/field_units require additional resolution
+ */
+ switch (return_desc->common.type) {
+ case ACPI_TYPE_BUFFER_FIELD:
+ case ACPI_TYPE_LOCAL_REGION_FIELD:
+ case ACPI_TYPE_LOCAL_BANK_FIELD:
+ case ACPI_TYPE_LOCAL_INDEX_FIELD:
+
+ status =
+ acpi_ex_read_data_from_field
+ (walk_state, return_desc,
+ &temp_desc);
+ if (ACPI_FAILURE(status)) {
+ goto cleanup;
+ }
+
+ return_desc = temp_desc;
+ break;
+
+ default:
+
+ /* Add another reference to the object */
+
+ acpi_ut_add_reference
+ (return_desc);
+ break;
+ }
}
-
- /* Add another reference to the object! */
-
- acpi_ut_add_reference(return_desc);
break;
default:
diff --git a/drivers/acpi/acpica/hwesleep.c b/drivers/acpi/acpica/hwesleep.c
index 5e5f762..4140768 100644
--- a/drivers/acpi/acpica/hwesleep.c
+++ b/drivers/acpi/acpica/hwesleep.c
@@ -43,6 +43,7 @@
*/
#include <acpi/acpi.h>
+#include <linux/acpi.h>
#include "accommon.h"
#define _COMPONENT ACPI_HARDWARE
@@ -128,6 +129,14 @@
ACPI_FLUSH_CPU_CACHE();
+ status = acpi_os_prepare_extended_sleep(sleep_state,
+ acpi_gbl_sleep_type_a,
+ acpi_gbl_sleep_type_b);
+ if (ACPI_SKIP(status))
+ return_ACPI_STATUS(AE_OK);
+ if (ACPI_FAILURE(status))
+ return_ACPI_STATUS(status);
+
/*
* Set the SLP_TYP and SLP_EN bits.
*
diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c
index 0c1a8bb..2d7d22e 100644
--- a/drivers/acpi/acpica/hwtimer.c
+++ b/drivers/acpi/acpica/hwtimer.c
@@ -100,8 +100,13 @@
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
- status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block);
+ /* ACPI 5.0A: PM Timer is optional */
+ if (!acpi_gbl_FADT.xpm_timer_block.address) {
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
+ status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block);
return_ACPI_STATUS(status);
}
@@ -148,6 +153,12 @@
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
+ /* ACPI 5.0A: PM Timer is optional */
+
+ if (!acpi_gbl_FADT.xpm_timer_block.address) {
+ return_ACPI_STATUS(AE_SUPPORT);
+ }
+
/*
* Compute Tick Delta:
* Handle (max one) timer rollovers on 24-bit versus 32-bit timers.
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 24b71a0..098e766 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -151,6 +151,15 @@
}
/*
+ *
+ * 4) If there is no return value and it is optional, just return
+ * AE_OK (_WAK).
+ */
+ if (!(*return_object_ptr)) {
+ goto exit;
+ }
+
+ /*
* For returned Package objects, check the type of all sub-objects.
* Note: Package may have been newly created by call above.
*/
@@ -268,7 +277,12 @@
acpi_ut_get_expected_return_types(type_buffer, expected_btypes);
- if (package_index == ACPI_NOT_PACKAGE_ELEMENT) {
+ if (!return_object) {
+ ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
+ info->node_flags,
+ "Expected return object of type %s",
+ type_buffer));
+ } else if (package_index == ACPI_NOT_PACKAGE_ELEMENT) {
ACPI_WARN_PREDEFINED((AE_INFO, info->full_pathname,
info->node_flags,
"Return type mismatch - found %s, expected %s",
diff --git a/drivers/acpi/acpica/nswalk.c b/drivers/acpi/acpica/nswalk.c
index e70911a..e81f15e 100644
--- a/drivers/acpi/acpica/nswalk.c
+++ b/drivers/acpi/acpica/nswalk.c
@@ -156,9 +156,9 @@
* max_depth - Depth to which search is to reach
* flags - Whether to unlock the NS before invoking
* the callback routine
- * pre_order_visit - Called during tree pre-order visit
+ * descending_callback - Called during tree descent
* when an object of "Type" is found
- * post_order_visit - Called during tree post-order visit
+ * ascending_callback - Called during tree ascent
* when an object of "Type" is found
* context - Passed to user function(s) above
* return_value - from the user_function if terminated
@@ -185,8 +185,8 @@
acpi_handle start_node,
u32 max_depth,
u32 flags,
- acpi_walk_callback pre_order_visit,
- acpi_walk_callback post_order_visit,
+ acpi_walk_callback descending_callback,
+ acpi_walk_callback ascending_callback,
void *context, void **return_value)
{
acpi_status status;
@@ -255,22 +255,22 @@
}
/*
- * Invoke the user function, either pre-order or post-order
+ * Invoke the user function, either descending, ascending,
* or both.
*/
if (!node_previously_visited) {
- if (pre_order_visit) {
+ if (descending_callback) {
status =
- pre_order_visit(child_node, level,
- context,
- return_value);
+ descending_callback(child_node,
+ level, context,
+ return_value);
}
} else {
- if (post_order_visit) {
+ if (ascending_callback) {
status =
- post_order_visit(child_node, level,
- context,
- return_value);
+ ascending_callback(child_node,
+ level, context,
+ return_value);
}
}
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index f553cfd..b38b4b0 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -533,9 +533,9 @@
* PARAMETERS: type - acpi_object_type to search for
* start_object - Handle in namespace where search begins
* max_depth - Depth to which search is to reach
- * pre_order_visit - Called during tree pre-order visit
+ * descending_callback - Called during tree descent
* when an object of "Type" is found
- * post_order_visit - Called during tree post-order visit
+ * ascending_callback - Called during tree ascent
* when an object of "Type" is found
* context - Passed to user function(s) above
* return_value - Location where return value of
@@ -563,8 +563,8 @@
acpi_walk_namespace(acpi_object_type type,
acpi_handle start_object,
u32 max_depth,
- acpi_walk_callback pre_order_visit,
- acpi_walk_callback post_order_visit,
+ acpi_walk_callback descending_callback,
+ acpi_walk_callback ascending_callback,
void *context, void **return_value)
{
acpi_status status;
@@ -574,7 +574,7 @@
/* Parameter validation */
if ((type > ACPI_TYPE_LOCAL_MAX) ||
- (!max_depth) || (!pre_order_visit && !post_order_visit)) {
+ (!max_depth) || (!descending_callback && !ascending_callback)) {
return_ACPI_STATUS(AE_BAD_PARAMETER);
}
@@ -606,9 +606,9 @@
}
status = acpi_ns_walk_namespace(type, start_object, max_depth,
- ACPI_NS_WALK_UNLOCK, pre_order_visit,
- post_order_visit, context,
- return_value);
+ ACPI_NS_WALK_UNLOCK,
+ descending_callback, ascending_callback,
+ context, return_value);
(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index f3a4d95..83c1644 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -158,6 +158,7 @@
{
acpi_status status;
struct acpi_namespace_node *node;
+ char *node_name;
/* Parameter validation */
@@ -202,7 +203,8 @@
/* Just copy the ACPI name from the Node and zero terminate it */
- ACPI_MOVE_NAME(buffer->pointer, acpi_ut_get_node_name(node));
+ node_name = acpi_ut_get_node_name(node);
+ ACPI_MOVE_NAME(buffer->pointer, node_name);
((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
status = AE_OK;
@@ -379,9 +381,14 @@
* Get extra info for ACPI Device/Processor objects only:
* Run the _STA, _ADR and, sx_w, and _sx_d methods.
*
- * Note: none of these methods are required, so they may or may
+ * Notes: none of these methods are required, so they may or may
* not be present for this device. The Info->Valid bitfield is used
* to indicate which methods were found and run successfully.
+ *
+ * For _STA, if the method does not exist, then (as per the ACPI
+ * specification), the returned current_status flags will indicate
+ * that the device is present/functional/enabled. Otherwise, the
+ * current_status flags reflect the value returned from _STA.
*/
/* Execute the Device._STA method */
diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c
index 33b00d2..9d99f21 100644
--- a/drivers/acpi/acpica/tbfadt.c
+++ b/drivers/acpi/acpica/tbfadt.c
@@ -117,7 +117,7 @@
ACPI_FADT_OFFSET(pm_timer_block),
ACPI_FADT_OFFSET(pm_timer_length),
ACPI_PM_TIMER_WIDTH,
- ACPI_FADT_REQUIRED},
+ ACPI_FADT_SEPARATE_LENGTH}, /* ACPI 5.0A: Timer is optional */
{"Gpe0Block",
ACPI_FADT_OFFSET(xgpe0_block),
@@ -574,7 +574,7 @@
if (fadt_info_table[i].type & ACPI_FADT_REQUIRED) {
/*
- * Field is required (Pm1a_event, Pm1a_control, pm_timer).
+ * Field is required (Pm1a_event, Pm1a_control).
* Both the address and length must be non-zero.
*/
if (!address64->address || !length) {
diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c
index 7c2ecfb..948c95e 100644
--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -48,11 +48,6 @@
#define _COMPONENT ACPI_TABLES
ACPI_MODULE_NAME("tbxfroot")
-/* Local prototypes */
-static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length);
-
-static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp);
-
/*******************************************************************************
*
* FUNCTION: acpi_tb_validate_rsdp
@@ -64,8 +59,7 @@
* DESCRIPTION: Validate the RSDP (ptr)
*
******************************************************************************/
-
-static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
+acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
{
/*
@@ -74,7 +68,7 @@
* Note: Sometimes there exists more than one RSDP in memory; the valid
* RSDP has a valid checksum, all others have an invalid checksum.
*/
- if (ACPI_STRNCMP((char *)rsdp, ACPI_SIG_RSDP,
+ if (ACPI_STRNCMP((char *)rsdp->signature, ACPI_SIG_RSDP,
sizeof(ACPI_SIG_RSDP) - 1) != 0) {
/* Nope, BAD Signature */
@@ -231,7 +225,7 @@
* DESCRIPTION: Search a block of memory for the RSDP signature
*
******************************************************************************/
-static u8 *acpi_tb_scan_memory_for_rsdp(u8 * start_address, u32 length)
+u8 *acpi_tb_scan_memory_for_rsdp(u8 *start_address, u32 length)
{
acpi_status status;
u8 *mem_rover;
diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index ee83adb..4fd6897 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -239,7 +239,8 @@
* RETURN: Status
*
* DESCRIPTION: Executes _STA for selected device and stores results in
- * *Flags.
+ * *Flags. If _STA does not exist, then the device is assumed
+ * to be present/functional/enabled (as per the ACPI spec).
*
* NOTE: Internal function, no parameter validation
*
@@ -257,6 +258,11 @@
ACPI_BTYPE_INTEGER, &obj_desc);
if (ACPI_FAILURE(status)) {
if (AE_NOT_FOUND == status) {
+ /*
+ * if _STA does not exist, then (as per the ACPI specification),
+ * the returned flags will indicate that the device is present,
+ * functional, and enabled.
+ */
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"_STA on %4.4s was not found, assuming device is present\n",
acpi_ut_get_node_name(device_node)));
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index f736448..d6f26bf 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -336,7 +336,6 @@
acpi_gbl_trace_dbg_layer = 0;
acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
- acpi_gbl_osi_data = 0;
acpi_gbl_osi_mutex = NULL;
acpi_gbl_reg_methods_executed = FALSE;
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 7e80772..8856bd3 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -77,21 +77,20 @@
/* Feature Group Strings */
- {"Extended Address Space Descriptor", NULL, 0, 0}
+ {"Extended Address Space Descriptor", NULL, ACPI_OSI_FEATURE, 0},
/*
* All "optional" feature group strings (features that are implemented
- * by the host) should be dynamically added by the host via
- * acpi_install_interface and should not be manually added here.
- *
- * Examples of optional feature group strings:
- *
- * "Module Device"
- * "Processor Device"
- * "3.0 Thermal Model"
- * "3.0 _SCP Extensions"
- * "Processor Aggregator Device"
+ * by the host) should be dynamically modified to VALID by the host via
+ * acpi_install_interface or acpi_update_interfaces. Such optional feature
+ * group strings are set as INVALID by default here.
*/
+
+ {"Module Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
+ {"Processor Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
+ {"3.0 Thermal Model", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
+ {"3.0 _SCP Extensions", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0},
+ {"Processor Aggregator Device", NULL, ACPI_OSI_OPTIONAL_FEATURE, 0}
};
/*******************************************************************************
@@ -158,11 +157,20 @@
while (next_interface) {
acpi_gbl_supported_interfaces = next_interface->next;
- /* Only interfaces added at runtime can be freed */
-
if (next_interface->flags & ACPI_OSI_DYNAMIC) {
+
+ /* Only interfaces added at runtime can be freed */
+
ACPI_FREE(next_interface->name);
ACPI_FREE(next_interface);
+ } else {
+ /* Interface is in static list. Reset it to invalid or valid. */
+
+ if (next_interface->flags & ACPI_OSI_DEFAULT_INVALID) {
+ next_interface->flags |= ACPI_OSI_INVALID;
+ } else {
+ next_interface->flags &= ~ACPI_OSI_INVALID;
+ }
}
next_interface = acpi_gbl_supported_interfaces;
@@ -278,6 +286,49 @@
/*******************************************************************************
*
+ * FUNCTION: acpi_ut_update_interfaces
+ *
+ * PARAMETERS: action - Actions to be performed during the
+ * update
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor
+ * strings or/and feature group strings.
+ * Caller MUST hold acpi_gbl_osi_mutex
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_update_interfaces(u8 action)
+{
+ struct acpi_interface_info *next_interface;
+
+ next_interface = acpi_gbl_supported_interfaces;
+ while (next_interface) {
+ if (((next_interface->flags & ACPI_OSI_FEATURE) &&
+ (action & ACPI_FEATURE_STRINGS)) ||
+ (!(next_interface->flags & ACPI_OSI_FEATURE) &&
+ (action & ACPI_VENDOR_STRINGS))) {
+ if (action & ACPI_DISABLE_INTERFACES) {
+
+ /* Mark the interfaces as invalid */
+
+ next_interface->flags |= ACPI_OSI_INVALID;
+ } else {
+ /* Mark the interfaces as valid */
+
+ next_interface->flags &= ~ACPI_OSI_INVALID;
+ }
+ }
+
+ next_interface = next_interface->next;
+ }
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_ut_get_interface
*
* PARAMETERS: interface_name - The interface to find
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index c53759b..cb1e9cc 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -333,7 +333,8 @@
* FUNCTION: acpi_ut_print_string
*
* PARAMETERS: string - Null terminated ASCII string
- * max_length - Maximum output length
+ * max_length - Maximum output length. Used to constrain the
+ * length of strings during debug output only.
*
* RETURN: None
*
@@ -342,7 +343,7 @@
*
******************************************************************************/
-void acpi_ut_print_string(char *string, u8 max_length)
+void acpi_ut_print_string(char *string, u16 max_length)
{
u32 i;
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 6505774..03a211e 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -389,6 +389,34 @@
/*****************************************************************************
*
+ * FUNCTION: acpi_update_interfaces
+ *
+ * PARAMETERS: action - Actions to be performed during the
+ * update
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Update _OSI interface strings, disabling or enabling OS vendor
+ * string or/and feature group strings.
+ *
+ ****************************************************************************/
+acpi_status acpi_update_interfaces(u8 action)
+{
+ acpi_status status;
+
+ status = acpi_os_acquire_mutex(acpi_gbl_osi_mutex, ACPI_WAIT_FOREVER);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
+ status = acpi_ut_update_interfaces(action);
+
+ acpi_os_release_mutex(acpi_gbl_osi_mutex);
+ return (status);
+}
+
+/*****************************************************************************
+ *
* FUNCTION: acpi_check_address_range
*
* PARAMETERS: space_id - Address space ID
@@ -402,6 +430,7 @@
* ASL operation region address ranges.
*
****************************************************************************/
+
u32
acpi_check_address_range(acpi_adr_space_type space_id,
acpi_physical_address address,
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 8533287..2c9958c 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -527,18 +527,14 @@
static int acpi_battery_set_alarm(struct acpi_battery *battery)
{
acpi_status status = 0;
- union acpi_object arg0 = { .type = ACPI_TYPE_INTEGER };
- struct acpi_object_list arg_list = { 1, &arg0 };
if (!acpi_battery_present(battery) ||
!test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags))
return -ENODEV;
- arg0.integer.value = battery->alarm;
-
mutex_lock(&battery->lock);
- status = acpi_evaluate_object(battery->device->handle, "_BTP",
- &arg_list, NULL);
+ status = acpi_execute_simple_method(battery->device->handle, "_BTP",
+ battery->alarm);
mutex_unlock(&battery->lock);
if (ACPI_FAILURE(status))
@@ -550,12 +546,8 @@
static int acpi_battery_init_alarm(struct acpi_battery *battery)
{
- acpi_status status = AE_OK;
- acpi_handle handle = NULL;
-
/* See if alarms are supported, and if so, set default */
- status = acpi_get_handle(battery->device->handle, "_BTP", &handle);
- if (ACPI_FAILURE(status)) {
+ if (!acpi_has_method(battery->device->handle, "_BTP")) {
clear_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags);
return 0;
}
@@ -1066,7 +1058,7 @@
{
int result = 0;
struct acpi_battery *battery = NULL;
- acpi_handle handle;
+
if (!device)
return -EINVAL;
battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL);
@@ -1078,8 +1070,7 @@
device->driver_data = battery;
mutex_init(&battery->lock);
mutex_init(&battery->sysfs_lock);
- if (ACPI_SUCCESS(acpi_get_handle(battery->device->handle,
- "_BIX", &handle)))
+ if (acpi_has_method(battery->device->handle, "_BIX"))
set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags);
result = acpi_battery_update(battery);
if (result)
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index cb96296..9515f18 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -192,6 +192,12 @@
acpi_osi_setup("!Windows 2009");
return 0;
}
+static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
+{
+ printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
+ acpi_osi_setup("!Windows 2012");
+ return 0;
+}
static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
{
@@ -267,6 +273,30 @@
DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
},
},
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "ASUS Zenbook Prime UX31A",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "UX31A"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Dell Inspiron 15R SE",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 7520"),
+ },
+ },
+ {
+ .callback = dmi_disable_osi_win8,
+ .ident = "Lenovo ThinkPad Edge E530",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"),
+ },
+ },
/*
* BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 7df97d2..b587ec8 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -380,19 +380,6 @@
*/
}
-static BLOCKING_NOTIFIER_HEAD(acpi_bus_notify_list);
-int register_acpi_bus_notifier(struct notifier_block *nb)
-{
- return blocking_notifier_chain_register(&acpi_bus_notify_list, nb);
-}
-EXPORT_SYMBOL_GPL(register_acpi_bus_notifier);
-
-void unregister_acpi_bus_notifier(struct notifier_block *nb)
-{
- blocking_notifier_chain_unregister(&acpi_bus_notify_list, nb);
-}
-EXPORT_SYMBOL_GPL(unregister_acpi_bus_notifier);
-
/**
* acpi_bus_notify
* ---------------
@@ -406,9 +393,6 @@
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Notification %#02x to handle %p\n",
type, handle));
- blocking_notifier_call_chain(&acpi_bus_notify_list,
- type, (void *)handle);
-
switch (type) {
case ACPI_NOTIFY_BUS_CHECK:
@@ -474,8 +458,6 @@
static int __init acpi_bus_init_irq(void)
{
acpi_status status;
- union acpi_object arg = { ACPI_TYPE_INTEGER };
- struct acpi_object_list arg_list = { 1, &arg };
char *message = NULL;
@@ -504,9 +486,7 @@
printk(KERN_INFO PREFIX "Using %s for interrupt routing\n", message);
- arg.integer.value = acpi_irq_model;
-
- status = acpi_evaluate_object(NULL, "\\_PIC", &arg_list, NULL);
+ status = acpi_execute_simple_method(NULL, "\\_PIC", acpi_irq_model);
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
ACPI_EXCEPTION((AE_INFO, status, "Evaluating _PIC"));
return -ENODEV;
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 4ab807d..59d3202f 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -159,26 +159,29 @@
int result = 0;
bool cut_power = false;
- if (!device || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
+ if (!device || !device->flags.power_manageable
+ || (state < ACPI_STATE_D0) || (state > ACPI_STATE_D3_COLD))
return -EINVAL;
/* Make sure this is a valid target state */
if (state == device->power.state) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at %s\n",
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] already in %s\n",
+ device->pnp.bus_id,
acpi_power_state_string(state)));
return 0;
}
if (!device->power.states[state].flags.valid) {
- printk(KERN_WARNING PREFIX "Device does not support %s\n",
- acpi_power_state_string(state));
+ dev_warn(&device->dev, "Power state %s not supported\n",
+ acpi_power_state_string(state));
return -ENODEV;
}
if (device->parent && (state < device->parent->power.state)) {
- printk(KERN_WARNING PREFIX
- "Cannot set device to a higher-powered"
- " state than parent\n");
+ dev_warn(&device->dev,
+ "Cannot transition to power state %s for parent in %s\n",
+ acpi_power_state_string(state),
+ acpi_power_state_string(device->parent->power.state));
return -ENODEV;
}
@@ -191,8 +194,8 @@
if (state < device->power.state && state != ACPI_STATE_D0
&& device->power.state >= ACPI_STATE_D3_HOT) {
- printk(KERN_WARNING PREFIX
- "Cannot transition to non-D0 state from D3\n");
+ dev_warn(&device->dev,
+ "Cannot transition to non-D0 state from D3\n");
return -ENODEV;
}
@@ -219,10 +222,8 @@
end:
if (result) {
- printk(KERN_WARNING PREFIX
- "Device [%s] failed to transition to %s\n",
- device->pnp.bus_id,
- acpi_power_state_string(state));
+ dev_warn(&device->dev, "Failed to change power state to %s\n",
+ acpi_power_state_string(state));
} else {
device->power.state = state;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -244,13 +245,6 @@
if (result)
return result;
- if (!device->flags.power_manageable) {
- ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Device [%s] is not power manageable\n",
- dev_name(&device->dev)));
- return -ENODEV;
- }
-
return acpi_device_set_power(device, state);
}
EXPORT_SYMBOL(acpi_bus_set_power);
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index c90112c..05ea4be 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -51,8 +51,6 @@
" the driver to wait for userspace to write the undock sysfs file "
" before undocking");
-static struct atomic_notifier_head dock_notifier_list;
-
static const struct acpi_device_id dock_device_ids[] = {
{"LNXDOCK", 0},
{"", 0},
@@ -63,8 +61,6 @@
acpi_handle handle;
unsigned long last_dock_time;
u32 flags;
- spinlock_t dd_lock;
- struct mutex hp_lock;
struct list_head dependent_devices;
struct list_head sibling;
@@ -91,6 +87,12 @@
#define DOCK_EVENT 3
#define UNDOCK_EVENT 2
+enum dock_callback_type {
+ DOCK_CALL_HANDLER,
+ DOCK_CALL_FIXUP,
+ DOCK_CALL_UEVENT,
+};
+
/*****************************************************************************
* Dock Dependent device functions *
*****************************************************************************/
@@ -101,7 +103,7 @@
*
* Add the dependent device to the dock's dependent device list.
*/
-static int
+static int __init
add_dock_dependent_device(struct dock_station *ds, acpi_handle handle)
{
struct dock_dependent_device *dd;
@@ -112,14 +114,21 @@
dd->handle = handle;
INIT_LIST_HEAD(&dd->list);
-
- spin_lock(&ds->dd_lock);
list_add_tail(&dd->list, &ds->dependent_devices);
- spin_unlock(&ds->dd_lock);
return 0;
}
+static void remove_dock_dependent_devices(struct dock_station *ds)
+{
+ struct dock_dependent_device *dd, *aux;
+
+ list_for_each_entry_safe(dd, aux, &ds->dependent_devices, list) {
+ list_del(&dd->list);
+ kfree(dd);
+ }
+}
+
/**
* dock_init_hotplug - Initialize a hotplug device on a docking station.
* @dd: Dock-dependent device.
@@ -135,19 +144,16 @@
int ret = 0;
mutex_lock(&hotplug_lock);
-
- if (dd->hp_context) {
+ if (WARN_ON(dd->hp_context)) {
ret = -EEXIST;
} else {
dd->hp_refcount = 1;
dd->hp_ops = ops;
dd->hp_context = context;
dd->hp_release = release;
+ if (init)
+ init(context);
}
-
- if (!WARN_ON(ret) && init)
- init(context);
-
mutex_unlock(&hotplug_lock);
return ret;
}
@@ -162,27 +168,22 @@
*/
static void dock_release_hotplug(struct dock_dependent_device *dd)
{
- void (*release)(void *) = NULL;
- void *context = NULL;
-
mutex_lock(&hotplug_lock);
-
if (dd->hp_context && !--dd->hp_refcount) {
+ void (*release)(void *) = dd->hp_release;
+ void *context = dd->hp_context;
+
dd->hp_ops = NULL;
- context = dd->hp_context;
dd->hp_context = NULL;
- release = dd->hp_release;
dd->hp_release = NULL;
+ if (release)
+ release(context);
}
-
- if (release && context)
- release(context);
-
mutex_unlock(&hotplug_lock);
}
static void dock_hotplug_event(struct dock_dependent_device *dd, u32 event,
- bool uevent)
+ enum dock_callback_type cb_type)
{
acpi_notify_handler cb = NULL;
bool run = false;
@@ -192,8 +193,18 @@
if (dd->hp_context) {
run = true;
dd->hp_refcount++;
- if (dd->hp_ops)
- cb = uevent ? dd->hp_ops->uevent : dd->hp_ops->handler;
+ if (dd->hp_ops) {
+ switch (cb_type) {
+ case DOCK_CALL_FIXUP:
+ cb = dd->hp_ops->fixup;
+ break;
+ case DOCK_CALL_UEVENT:
+ cb = dd->hp_ops->uevent;
+ break;
+ default:
+ cb = dd->hp_ops->handler;
+ }
+ }
}
mutex_unlock(&hotplug_lock);
@@ -220,63 +231,17 @@
{
struct dock_dependent_device *dd;
- spin_lock(&ds->dd_lock);
- list_for_each_entry(dd, &ds->dependent_devices, list) {
- if (handle == dd->handle) {
- spin_unlock(&ds->dd_lock);
+ list_for_each_entry(dd, &ds->dependent_devices, list)
+ if (handle == dd->handle)
return dd;
- }
- }
- spin_unlock(&ds->dd_lock);
+
return NULL;
}
/*****************************************************************************
* Dock functions *
*****************************************************************************/
-/**
- * is_dock - see if a device is a dock station
- * @handle: acpi handle of the device
- *
- * If an acpi object has a _DCK method, then it is by definition a dock
- * station, so return true.
- */
-static int is_dock(acpi_handle handle)
-{
- acpi_status status;
- acpi_handle tmp;
-
- status = acpi_get_handle(handle, "_DCK", &tmp);
- if (ACPI_FAILURE(status))
- return 0;
- return 1;
-}
-
-static int is_ejectable(acpi_handle handle)
-{
- acpi_status status;
- acpi_handle tmp;
-
- status = acpi_get_handle(handle, "_EJ0", &tmp);
- if (ACPI_FAILURE(status))
- return 0;
- return 1;
-}
-
-static int is_ata(acpi_handle handle)
-{
- acpi_handle tmp;
-
- if ((ACPI_SUCCESS(acpi_get_handle(handle, "_GTF", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(handle, "_GTM", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(handle, "_STM", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(handle, "_SDD", &tmp))))
- return 1;
-
- return 0;
-}
-
-static int is_battery(acpi_handle handle)
+static int __init is_battery(acpi_handle handle)
{
struct acpi_device_info *info;
int ret = 1;
@@ -292,17 +257,13 @@
return ret;
}
-static int is_ejectable_bay(acpi_handle handle)
+/* Check whether ACPI object is an ejectable battery or disk bay */
+static bool __init is_ejectable_bay(acpi_handle handle)
{
- acpi_handle phandle;
+ if (acpi_has_method(handle, "_EJ0") && is_battery(handle))
+ return true;
- if (!is_ejectable(handle))
- return 0;
- if (is_battery(handle) || is_ata(handle))
- return 1;
- if (!acpi_get_parent(handle, &phandle) && is_ata(phandle))
- return 1;
- return 0;
+ return acpi_bay_match(handle);
}
/**
@@ -320,7 +281,7 @@
if (!dock_station_count)
return 0;
- if (is_dock(handle))
+ if (acpi_dock_match(handle))
return 1;
list_for_each_entry(dock_station, &dock_stations, sibling)
@@ -359,10 +320,8 @@
* handle if one does not exist already. This should cause
* acpi to scan for drivers for the given devices, and call
* matching driver's add routine.
- *
- * Returns a pointer to the acpi_device corresponding to the handle.
*/
-static struct acpi_device * dock_create_acpi_device(acpi_handle handle)
+static void dock_create_acpi_device(acpi_handle handle)
{
struct acpi_device *device;
int ret;
@@ -375,10 +334,7 @@
ret = acpi_bus_scan(handle);
if (ret)
pr_debug("error adding bus, %x\n", -ret);
-
- acpi_bus_get_device(handle, &device);
}
- return device;
}
/**
@@ -397,9 +353,29 @@
}
/**
- * hotplug_dock_devices - insert or remove devices on the dock station
+ * hot_remove_dock_devices - Remove dock station devices.
+ * @ds: Dock station.
+ */
+static void hot_remove_dock_devices(struct dock_station *ds)
+{
+ struct dock_dependent_device *dd;
+
+ /*
+ * Walk the list in reverse order so that devices that have been added
+ * last are removed first (in case there are some indirect dependencies
+ * between them).
+ */
+ list_for_each_entry_reverse(dd, &ds->dependent_devices, list)
+ dock_hotplug_event(dd, ACPI_NOTIFY_EJECT_REQUEST, false);
+
+ list_for_each_entry_reverse(dd, &ds->dependent_devices, list)
+ dock_remove_acpi_device(dd->handle);
+}
+
+/**
+ * hotplug_dock_devices - Insert devices on a dock station.
* @ds: the dock station
- * @event: either bus check or eject request
+ * @event: either bus check or device check request
*
* Some devices on the dock station need to have drivers called
* to perform hotplug operations after a dock event has occurred.
@@ -410,27 +386,21 @@
{
struct dock_dependent_device *dd;
- mutex_lock(&ds->hp_lock);
+ /* Call driver specific post-dock fixups. */
+ list_for_each_entry(dd, &ds->dependent_devices, list)
+ dock_hotplug_event(dd, event, DOCK_CALL_FIXUP);
+
+ /* Call driver specific hotplug functions. */
+ list_for_each_entry(dd, &ds->dependent_devices, list)
+ dock_hotplug_event(dd, event, DOCK_CALL_HANDLER);
/*
- * First call driver specific hotplug functions
+ * Now make sure that an acpi_device is created for each dependent
+ * device. That will cause scan handlers to be attached to device
+ * objects or acpi_drivers to be stopped/started if they are present.
*/
list_for_each_entry(dd, &ds->dependent_devices, list)
- dock_hotplug_event(dd, event, false);
-
- /*
- * Now make sure that an acpi_device is created for each
- * dependent device, or removed if this is an eject request.
- * This will cause acpi_drivers to be stopped/started if they
- * exist
- */
- list_for_each_entry(dd, &ds->dependent_devices, list) {
- if (event == ACPI_NOTIFY_EJECT_REQUEST)
- dock_remove_acpi_device(dd->handle);
- else
- dock_create_acpi_device(dd->handle);
- }
- mutex_unlock(&ds->hp_lock);
+ dock_create_acpi_device(dd->handle);
}
static void dock_event(struct dock_station *ds, u32 event, int num)
@@ -453,44 +423,13 @@
kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
list_for_each_entry(dd, &ds->dependent_devices, list)
- dock_hotplug_event(dd, event, true);
+ dock_hotplug_event(dd, event, DOCK_CALL_UEVENT);
if (num != DOCK_EVENT)
kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
}
/**
- * eject_dock - respond to a dock eject request
- * @ds: the dock station
- *
- * This is called after _DCK is called, to execute the dock station's
- * _EJ0 method.
- */
-static void eject_dock(struct dock_station *ds)
-{
- struct acpi_object_list arg_list;
- union acpi_object arg;
- acpi_status status;
- acpi_handle tmp;
-
- /* all dock devices should have _EJ0, but check anyway */
- status = acpi_get_handle(ds->handle, "_EJ0", &tmp);
- if (ACPI_FAILURE(status)) {
- pr_debug("No _EJ0 support for dock device\n");
- return;
- }
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = 1;
-
- status = acpi_evaluate_object(ds->handle, "_EJ0", &arg_list, NULL);
- if (ACPI_FAILURE(status))
- pr_debug("Failed to evaluate _EJ0!\n");
-}
-
-/**
* handle_dock - handle a dock event
* @ds: the dock station
* @dock: to dock, or undock - that is the question
@@ -550,27 +489,6 @@
ds->flags &= ~(DOCK_UNDOCKING);
}
-static void dock_lock(struct dock_station *ds, int lock)
-{
- struct acpi_object_list arg_list;
- union acpi_object arg;
- acpi_status status;
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = !!lock;
- status = acpi_evaluate_object(ds->handle, "_LCK", &arg_list, NULL);
- if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
- if (lock)
- acpi_handle_warn(ds->handle,
- "Locking device failed (0x%x)\n", status);
- else
- acpi_handle_warn(ds->handle,
- "Unlocking device failed (0x%x)\n", status);
- }
-}
-
/**
* dock_in_progress - see if we are in the middle of handling a dock event
* @ds: the dock station
@@ -588,37 +506,6 @@
}
/**
- * register_dock_notifier - add yourself to the dock notifier list
- * @nb: the callers notifier block
- *
- * If a driver wishes to be notified about dock events, they can
- * use this function to put a notifier block on the dock notifier list.
- * this notifier call chain will be called after a dock event, but
- * before hotplugging any new devices.
- */
-int register_dock_notifier(struct notifier_block *nb)
-{
- if (!dock_station_count)
- return -ENODEV;
-
- return atomic_notifier_chain_register(&dock_notifier_list, nb);
-}
-EXPORT_SYMBOL_GPL(register_dock_notifier);
-
-/**
- * unregister_dock_notifier - remove yourself from the dock notifier list
- * @nb: the callers notifier block
- */
-void unregister_dock_notifier(struct notifier_block *nb)
-{
- if (!dock_station_count)
- return;
-
- atomic_notifier_chain_unregister(&dock_notifier_list, nb);
-}
-EXPORT_SYMBOL_GPL(unregister_dock_notifier);
-
-/**
* register_hotplug_dock_device - register a hotplug function
* @handle: the handle of the device
* @ops: handlers to call after docking
@@ -703,10 +590,10 @@
*/
dock_event(ds, event, UNDOCK_EVENT);
- hotplug_dock_devices(ds, ACPI_NOTIFY_EJECT_REQUEST);
+ hot_remove_dock_devices(ds);
undock(ds);
- dock_lock(ds, 0);
- eject_dock(ds);
+ acpi_evaluate_lck(ds->handle, 0);
+ acpi_evaluate_ej0(ds->handle);
if (dock_present(ds)) {
acpi_handle_err(ds->handle, "Unable to undock!\n");
return -EBUSY;
@@ -717,18 +604,17 @@
/**
* dock_notify - act upon an acpi dock notification
- * @handle: the dock station handle
+ * @ds: dock station
* @event: the acpi event
- * @data: our driver data struct
*
* If we are notified to dock, then check to see if the dock is
* present and then dock. Notify all drivers of the dock event,
* and then hotplug and devices that may need hotplugging.
*/
-static void dock_notify(acpi_handle handle, u32 event, void *data)
+static void dock_notify(struct dock_station *ds, u32 event)
{
- struct dock_station *ds = data;
- struct acpi_device *tmp;
+ acpi_handle handle = ds->handle;
+ struct acpi_device *ad;
int surprise_removal = 0;
/*
@@ -751,8 +637,7 @@
switch (event) {
case ACPI_NOTIFY_BUS_CHECK:
case ACPI_NOTIFY_DEVICE_CHECK:
- if (!dock_in_progress(ds) && acpi_bus_get_device(ds->handle,
- &tmp)) {
+ if (!dock_in_progress(ds) && acpi_bus_get_device(handle, &ad)) {
begin_dock(ds);
dock(ds);
if (!dock_present(ds)) {
@@ -760,12 +645,10 @@
complete_dock(ds);
break;
}
- atomic_notifier_call_chain(&dock_notifier_list,
- event, NULL);
hotplug_dock_devices(ds, event);
complete_dock(ds);
dock_event(ds, event, DOCK_EVENT);
- dock_lock(ds, 1);
+ acpi_evaluate_lck(ds->handle, 1);
acpi_update_all_gpes();
break;
}
@@ -789,9 +672,8 @@
}
struct dock_data {
- acpi_handle handle;
- unsigned long event;
struct dock_station *ds;
+ u32 event;
};
static void acpi_dock_deferred_cb(void *context)
@@ -799,52 +681,31 @@
struct dock_data *data = context;
acpi_scan_lock_acquire();
- dock_notify(data->handle, data->event, data->ds);
+ dock_notify(data->ds, data->event);
acpi_scan_lock_release();
kfree(data);
}
-static int acpi_dock_notifier_call(struct notifier_block *this,
- unsigned long event, void *data)
+static void dock_notify_handler(acpi_handle handle, u32 event, void *data)
{
- struct dock_station *dock_station;
- acpi_handle handle = data;
+ struct dock_data *dd;
if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK
&& event != ACPI_NOTIFY_EJECT_REQUEST)
- return 0;
+ return;
- acpi_scan_lock_acquire();
+ dd = kmalloc(sizeof(*dd), GFP_KERNEL);
+ if (dd) {
+ acpi_status status;
- list_for_each_entry(dock_station, &dock_stations, sibling) {
- if (dock_station->handle == handle) {
- struct dock_data *dd;
- acpi_status status;
-
- dd = kmalloc(sizeof(*dd), GFP_KERNEL);
- if (!dd)
- break;
-
- dd->handle = handle;
- dd->event = event;
- dd->ds = dock_station;
- status = acpi_os_hotplug_execute(acpi_dock_deferred_cb,
- dd);
- if (ACPI_FAILURE(status))
- kfree(dd);
-
- break;
- }
+ dd->ds = data;
+ dd->event = event;
+ status = acpi_os_hotplug_execute(acpi_dock_deferred_cb, dd);
+ if (ACPI_FAILURE(status))
+ kfree(dd);
}
-
- acpi_scan_lock_release();
- return 0;
}
-static struct notifier_block dock_acpi_notifier = {
- .notifier_call = acpi_dock_notifier_call,
-};
-
/**
* find_dock_devices - find devices on the dock station
* @handle: the handle of the device we are examining
@@ -856,29 +717,16 @@
* check to see if an object has an _EJD method. If it does, then it
* will see if it is dependent on the dock station.
*/
-static acpi_status
-find_dock_devices(acpi_handle handle, u32 lvl, void *context, void **rv)
+static acpi_status __init find_dock_devices(acpi_handle handle, u32 lvl,
+ void *context, void **rv)
{
- acpi_status status;
- acpi_handle tmp, parent;
struct dock_station *ds = context;
+ acpi_handle ejd = NULL;
- status = acpi_bus_get_ejd(handle, &tmp);
- if (ACPI_FAILURE(status)) {
- /* try the parent device as well */
- status = acpi_get_parent(handle, &parent);
- if (ACPI_FAILURE(status))
- goto fdd_out;
- /* see if parent is dependent on dock */
- status = acpi_bus_get_ejd(parent, &tmp);
- if (ACPI_FAILURE(status))
- goto fdd_out;
- }
-
- if (tmp == ds->handle)
+ acpi_bus_get_ejd(handle, &ejd);
+ if (ejd == ds->handle)
add_dock_dependent_device(ds, handle);
-fdd_out:
return AE_OK;
}
@@ -988,13 +836,13 @@
*/
static int __init dock_add(acpi_handle handle)
{
- int ret, id;
- struct dock_station ds, *dock_station;
+ struct dock_station *dock_station, ds = { NULL, };
struct platform_device *dd;
+ acpi_status status;
+ int ret;
- id = dock_station_count;
- memset(&ds, 0, sizeof(ds));
- dd = platform_device_register_data(NULL, "dock", id, &ds, sizeof(ds));
+ dd = platform_device_register_data(NULL, "dock", dock_station_count,
+ &ds, sizeof(ds));
if (IS_ERR(dd))
return PTR_ERR(dd);
@@ -1004,18 +852,15 @@
dock_station->dock_device = dd;
dock_station->last_dock_time = jiffies - HZ;
- mutex_init(&dock_station->hp_lock);
- spin_lock_init(&dock_station->dd_lock);
INIT_LIST_HEAD(&dock_station->sibling);
- ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list);
INIT_LIST_HEAD(&dock_station->dependent_devices);
/* we want the dock device to send uevents */
dev_set_uevent_suppress(&dd->dev, 0);
- if (is_dock(handle))
+ if (acpi_dock_match(handle))
dock_station->flags |= DOCK_IS_DOCK;
- if (is_ata(handle))
+ if (acpi_ata_match(handle))
dock_station->flags |= DOCK_IS_ATA;
if (is_battery(handle))
dock_station->flags |= DOCK_IS_BAT;
@@ -1034,11 +879,19 @@
if (ret)
goto err_rmgroup;
+ status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
+ dock_notify_handler, dock_station);
+ if (ACPI_FAILURE(status)) {
+ ret = -ENODEV;
+ goto err_rmgroup;
+ }
+
dock_station_count++;
list_add(&dock_station->sibling, &dock_stations);
return 0;
err_rmgroup:
+ remove_dock_dependent_devices(dock_station);
sysfs_remove_group(&dd->dev.kobj, &dock_attribute_group);
err_unregister:
platform_device_unregister(dd);
@@ -1058,7 +911,7 @@
static acpi_status __init
find_dock_and_bay(acpi_handle handle, u32 lvl, void *context, void **rv)
{
- if (is_dock(handle) || is_ejectable_bay(handle))
+ if (acpi_dock_match(handle) || is_ejectable_bay(handle))
dock_add(handle);
return AE_OK;
@@ -1078,7 +931,6 @@
return;
}
- register_acpi_bus_notifier(&dock_acpi_notifier);
pr_info(PREFIX "%s: %d docks/bays found\n",
ACPI_DOCK_DRIVER_DESCRIPTION, dock_station_count);
}
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 81b1331..a06d983 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -1053,10 +1053,8 @@
* which needs it, has fake EC._INI method, so use it as flag.
* Keep boot_ec struct as it will be needed soon.
*/
- acpi_handle dummy;
if (!dmi_name_in_vendors("ASUS") ||
- ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI",
- &dummy)))
+ !acpi_has_method(boot_ec->handle, "_INI"))
return -ENODEV;
}
install:
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 5b02a0aa..41ade65 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -93,7 +93,7 @@
if (result)
return result;
- *state = (acpi_state == ACPI_STATE_D3 ? 0 :
+ *state = (acpi_state == ACPI_STATE_D3_COLD ? 0 :
(acpi_state == ACPI_STATE_D0 ? 1 : -1));
return 0;
}
@@ -108,7 +108,7 @@
return -EINVAL;
result = acpi_bus_set_power(device->handle,
- state ? ACPI_STATE_D0 : ACPI_STATE_D3);
+ state ? ACPI_STATE_D0 : ACPI_STATE_D3_COLD);
return result;
}
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 408f6b2..9467229 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -173,6 +173,15 @@
}
EXPORT_SYMBOL_GPL(acpi_find_child);
+static void acpi_physnode_link_name(char *buf, unsigned int node_id)
+{
+ if (node_id > 0)
+ snprintf(buf, PHYSICAL_NODE_NAME_SIZE,
+ PHYSICAL_NODE_STRING "%u", node_id);
+ else
+ strcpy(buf, PHYSICAL_NODE_STRING);
+}
+
int acpi_bind_one(struct device *dev, acpi_handle handle)
{
struct acpi_device *acpi_dev;
@@ -216,8 +225,15 @@
list_for_each_entry(pn, &acpi_dev->physical_node_list, node) {
/* Sanity check. */
if (pn->dev == dev) {
+ mutex_unlock(&acpi_dev->physical_node_lock);
+
dev_warn(dev, "Already associated with ACPI node\n");
- goto err_free;
+ kfree(physical_node);
+ if (ACPI_HANDLE(dev) != handle)
+ goto err;
+
+ put_device(dev);
+ return 0;
}
if (pn->node_id == node_id) {
physnode_list = &pn->node;
@@ -230,20 +246,23 @@
list_add(&physical_node->node, physnode_list);
acpi_dev->physical_node_count++;
- mutex_unlock(&acpi_dev->physical_node_lock);
-
if (!ACPI_HANDLE(dev))
ACPI_HANDLE_SET(dev, acpi_dev->handle);
- if (!physical_node->node_id)
- strcpy(physical_node_name, PHYSICAL_NODE_STRING);
- else
- sprintf(physical_node_name,
- "physical_node%d", physical_node->node_id);
+ acpi_physnode_link_name(physical_node_name, node_id);
retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
- physical_node_name);
+ physical_node_name);
+ if (retval)
+ dev_err(&acpi_dev->dev, "Failed to create link %s (%d)\n",
+ physical_node_name, retval);
+
retval = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj,
- "firmware_node");
+ "firmware_node");
+ if (retval)
+ dev_err(dev, "Failed to create link firmware_node (%d)\n",
+ retval);
+
+ mutex_unlock(&acpi_dev->physical_node_lock);
if (acpi_dev->wakeup.flags.valid)
device_set_wakeup_capable(dev, true);
@@ -254,11 +273,6 @@
ACPI_HANDLE_SET(dev, NULL);
put_device(dev);
return retval;
-
- err_free:
- mutex_unlock(&acpi_dev->physical_node_lock);
- kfree(physical_node);
- goto err;
}
EXPORT_SYMBOL_GPL(acpi_bind_one);
@@ -267,48 +281,37 @@
struct acpi_device_physical_node *entry;
struct acpi_device *acpi_dev;
acpi_status status;
- struct list_head *node, *next;
if (!ACPI_HANDLE(dev))
return 0;
status = acpi_bus_get_device(ACPI_HANDLE(dev), &acpi_dev);
- if (ACPI_FAILURE(status))
- goto err;
+ if (ACPI_FAILURE(status)) {
+ dev_err(dev, "Oops, ACPI handle corrupt in %s()\n", __func__);
+ return -EINVAL;
+ }
mutex_lock(&acpi_dev->physical_node_lock);
- list_for_each_safe(node, next, &acpi_dev->physical_node_list) {
- char physical_node_name[PHYSICAL_NODE_NAME_SIZE];
- entry = list_entry(node, struct acpi_device_physical_node,
- node);
- if (entry->dev != dev)
- continue;
+ list_for_each_entry(entry, &acpi_dev->physical_node_list, node)
+ if (entry->dev == dev) {
+ char physnode_name[PHYSICAL_NODE_NAME_SIZE];
- list_del(node);
+ list_del(&entry->node);
+ acpi_dev->physical_node_count--;
- acpi_dev->physical_node_count--;
+ acpi_physnode_link_name(physnode_name, entry->node_id);
+ sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name);
+ sysfs_remove_link(&dev->kobj, "firmware_node");
+ ACPI_HANDLE_SET(dev, NULL);
+ /* acpi_bind_one() increase refcnt by one. */
+ put_device(dev);
+ kfree(entry);
+ break;
+ }
- if (!entry->node_id)
- strcpy(physical_node_name, PHYSICAL_NODE_STRING);
- else
- sprintf(physical_node_name,
- "physical_node%d", entry->node_id);
-
- sysfs_remove_link(&acpi_dev->dev.kobj, physical_node_name);
- sysfs_remove_link(&dev->kobj, "firmware_node");
- ACPI_HANDLE_SET(dev, NULL);
- /* acpi_bind_one increase refcnt by one */
- put_device(dev);
- kfree(entry);
- }
mutex_unlock(&acpi_dev->physical_node_lock);
-
return 0;
-
-err:
- dev_err(dev, "Oops, 'acpi_handle' corrupt\n");
- return -EINVAL;
}
EXPORT_SYMBOL_GPL(acpi_unbind_one);
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 6bc0827..e5f416c 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -80,6 +80,8 @@
static int (*__acpi_os_prepare_sleep)(u8 sleep_state, u32 pm1a_ctrl,
u32 pm1b_ctrl);
+static int (*__acpi_os_prepare_extended_sleep)(u8 sleep_state, u32 val_a,
+ u32 val_b);
static acpi_osd_handler acpi_irq_handler;
static void *acpi_irq_context;
@@ -141,7 +143,8 @@
unsigned int enable:1;
unsigned int dmi:1;
unsigned int cmdline:1;
-} osi_linux = {0, 0, 0};
+ unsigned int default_disabling:1;
+} osi_linux = {0, 0, 0, 0};
static u32 acpi_osi_handler(acpi_string interface, u32 supported)
{
@@ -1381,6 +1384,17 @@
if (*str == '!') {
str++;
+ if (*str == '\0') {
+ osi_linux.default_disabling = 1;
+ return;
+ } else if (*str == '*') {
+ acpi_update_interfaces(ACPI_DISABLE_ALL_STRINGS);
+ for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
+ osi = &osi_setup_entries[i];
+ osi->enable = false;
+ }
+ return;
+ }
enable = false;
}
@@ -1446,6 +1460,13 @@
int i;
acpi_status status;
+ if (osi_linux.default_disabling) {
+ status = acpi_update_interfaces(ACPI_DISABLE_ALL_VENDOR_STRINGS);
+
+ if (ACPI_SUCCESS(status))
+ printk(KERN_INFO PREFIX "Disabled all _OSI OS vendors\n");
+ }
+
for (i = 0; i < OSI_STRING_ENTRIES_MAX; i++) {
osi = &osi_setup_entries[i];
str = osi->string;
@@ -1784,6 +1805,28 @@
__acpi_os_prepare_sleep = func;
}
+acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state, u32 val_a,
+ u32 val_b)
+{
+ int rc = 0;
+ if (__acpi_os_prepare_extended_sleep)
+ rc = __acpi_os_prepare_extended_sleep(sleep_state,
+ val_a, val_b);
+ if (rc < 0)
+ return AE_ERROR;
+ else if (rc > 0)
+ return AE_CTRL_SKIP;
+
+ return AE_OK;
+}
+
+void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
+ u32 val_a, u32 val_b))
+{
+ __acpi_os_prepare_extended_sleep = func;
+}
+
+
void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context,
void (*func)(struct work_struct *work))
{
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index 033d117..d678a18 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -159,12 +159,16 @@
return AE_OK;
}
-void acpi_pci_slot_enumerate(struct pci_bus *bus, acpi_handle handle)
+void acpi_pci_slot_enumerate(struct pci_bus *bus)
{
- mutex_lock(&slot_list_lock);
- acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
- register_slot, NULL, bus, NULL);
- mutex_unlock(&slot_list_lock);
+ acpi_handle handle = ACPI_HANDLE(bus->bridge);
+
+ if (handle) {
+ mutex_lock(&slot_list_lock);
+ acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
+ register_slot, NULL, bus, NULL);
+ mutex_unlock(&slot_list_lock);
+ }
}
void acpi_pci_slot_remove(struct pci_bus *bus)
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 5c28c89..0dbe5cd 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -637,9 +637,7 @@
}
/* Execute _PSW */
- arg_list.count = 1;
- in_arg[0].integer.value = enable;
- status = acpi_evaluate_object(dev->handle, "_PSW", &arg_list, NULL);
+ status = acpi_execute_simple_method(dev->handle, "_PSW", enable);
if (ACPI_FAILURE(status) && (status != AE_NOT_FOUND)) {
printk(KERN_ERR PREFIX "_PSW execution failed\n");
dev->wakeup.flags.valid = 0;
@@ -786,7 +784,7 @@
}
}
- *state = ACPI_STATE_D3;
+ *state = ACPI_STATE_D3_COLD;
return 0;
}
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index bd11ef9..e534ba6 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -175,7 +175,9 @@
acpi_processor_load_module(pr);
#endif
acpi_processor_get_throttling_info(pr);
- acpi_processor_get_limit_info(pr);
+
+ if (pr->flags.throttling)
+ pr->flags.limit = 1;
if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
acpi_processor_power_init(pr);
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 1e9732d..51d7948 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -164,17 +164,12 @@
{.type = ACPI_TYPE_INTEGER,},
};
struct acpi_object_list arg_list = {2, params};
- acpi_handle temp;
- params[0].integer.value = ACPI_PROCESSOR_NOTIFY_PERFORMANCE;
- params[1].integer.value = status;
-
- /* when there is no _OST , skip it */
- if (ACPI_FAILURE(acpi_get_handle(handle, "_OST", &temp)))
- return;
-
- acpi_evaluate_object(handle, "_OST", &arg_list, NULL);
- return;
+ if (acpi_has_method(handle, "_OST")) {
+ params[0].integer.value = ACPI_PROCESSOR_NOTIFY_PERFORMANCE;
+ params[1].integer.value = status;
+ acpi_evaluate_object(handle, "_OST", &arg_list, NULL);
+ }
}
int acpi_processor_ppc_has_changed(struct acpi_processor *pr, int event_flag)
@@ -468,14 +463,11 @@
int acpi_processor_get_performance_info(struct acpi_processor *pr)
{
int result = 0;
- acpi_status status = AE_OK;
- acpi_handle handle = NULL;
if (!pr || !pr->performance || !pr->handle)
return -EINVAL;
- status = acpi_get_handle(pr->handle, "_PCT", &handle);
- if (ACPI_FAILURE(status)) {
+ if (!acpi_has_method(pr->handle, "_PCT")) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"ACPI-based processor performance control unavailable\n"));
return -ENODEV;
@@ -501,7 +493,7 @@
*/
update_bios:
#ifdef CONFIG_X86
- if (ACPI_SUCCESS(acpi_get_handle(pr->handle, "_PPC", &handle))){
+ if (acpi_has_method(pr->handle, "_PPC")) {
if(boot_cpu_has(X86_FEATURE_EST))
printk(KERN_WARNING FW_BUG "BIOS needs update for CPU "
"frequency support\n");
diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c
index e8e6527..d1d2e7f 100644
--- a/drivers/acpi/processor_thermal.c
+++ b/drivers/acpi/processor_thermal.c
@@ -186,18 +186,6 @@
#endif
-int acpi_processor_get_limit_info(struct acpi_processor *pr)
-{
-
- if (!pr)
- return -EINVAL;
-
- if (pr->flags.throttling)
- pr->flags.limit = 1;
-
- return 0;
-}
-
/* thermal coolign device callbacks */
static int acpi_processor_max_state(struct acpi_processor *pr)
{
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index 3322b47..b7201fc 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -505,14 +505,12 @@
void *preproc_data)
{
struct res_proc_context c;
- acpi_handle not_used;
acpi_status status;
if (!adev || !adev->handle || !list_empty(list))
return -EINVAL;
- status = acpi_get_handle(adev->handle, METHOD_NAME__CRS, ¬_used);
- if (ACPI_FAILURE(status))
+ if (!acpi_has_method(adev->handle, METHOD_NAME__CRS))
return 0;
c.list = list;
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 7d9e285..e763651 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -193,9 +193,6 @@
static int acpi_scan_hot_remove(struct acpi_device *device)
{
acpi_handle handle = device->handle;
- acpi_handle not_used;
- struct acpi_object_list arg_list;
- union acpi_object arg;
struct device *errdev;
acpi_status status;
unsigned long long sta;
@@ -258,32 +255,15 @@
put_device(&device->dev);
device = NULL;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_LCK", ¬_used))) {
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = 0;
- acpi_evaluate_object(handle, "_LCK", &arg_list, NULL);
- }
-
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = 1;
-
+ acpi_evaluate_lck(handle, 0);
/*
* TBD: _EJD support.
*/
- status = acpi_evaluate_object(handle, "_EJ0", &arg_list, NULL);
- if (ACPI_FAILURE(status)) {
- if (status == AE_NOT_FOUND) {
- return -ENODEV;
- } else {
- acpi_handle_warn(handle, "Eject failed (0x%x)\n",
- status);
- return -EIO;
- }
- }
+ status = acpi_evaluate_ej0(handle);
+ if (status == AE_NOT_FOUND)
+ return -ENODEV;
+ else if (ACPI_FAILURE(status))
+ return -EIO;
/*
* Verify if eject was indeed successful. If not, log an error
@@ -654,7 +634,6 @@
{
struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
acpi_status status;
- acpi_handle temp;
unsigned long long sun;
int result = 0;
@@ -680,8 +659,7 @@
/*
* If device has _STR, 'description' file is created
*/
- status = acpi_get_handle(dev->handle, "_STR", &temp);
- if (ACPI_SUCCESS(status)) {
+ if (acpi_has_method(dev->handle, "_STR")) {
status = acpi_evaluate_object(dev->handle, "_STR",
NULL, &buffer);
if (ACPI_FAILURE(status))
@@ -711,8 +689,7 @@
* If device has _EJ0, 'eject' file is created that is used to trigger
* hot-removal function from userland.
*/
- status = acpi_get_handle(dev->handle, "_EJ0", &temp);
- if (ACPI_SUCCESS(status)) {
+ if (acpi_has_method(dev->handle, "_EJ0")) {
result = device_create_file(&dev->dev, &dev_attr_eject);
if (result)
return result;
@@ -734,9 +711,6 @@
static void acpi_device_remove_files(struct acpi_device *dev)
{
- acpi_status status;
- acpi_handle temp;
-
if (dev->flags.power_manageable) {
device_remove_file(&dev->dev, &dev_attr_power_state);
if (dev->power.flags.power_resources)
@@ -747,20 +721,17 @@
/*
* If device has _STR, remove 'description' file
*/
- status = acpi_get_handle(dev->handle, "_STR", &temp);
- if (ACPI_SUCCESS(status)) {
+ if (acpi_has_method(dev->handle, "_STR")) {
kfree(dev->pnp.str_obj);
device_remove_file(&dev->dev, &dev_attr_description);
}
/*
* If device has _EJ0, remove 'eject' file.
*/
- status = acpi_get_handle(dev->handle, "_EJ0", &temp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(dev->handle, "_EJ0"))
device_remove_file(&dev->dev, &dev_attr_eject);
- status = acpi_get_handle(dev->handle, "_SUN", &temp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(dev->handle, "_SUN"))
device_remove_file(&dev->dev, &dev_attr_sun);
if (dev->pnp.unique_id)
@@ -1350,13 +1321,10 @@
static void acpi_bus_get_wakeup_device_flags(struct acpi_device *device)
{
- acpi_handle temp;
- acpi_status status = 0;
int err;
/* Presence of _PRW indicates wake capable */
- status = acpi_get_handle(device->handle, "_PRW", &temp);
- if (ACPI_FAILURE(status))
+ if (!acpi_has_method(device->handle, "_PRW"))
return;
err = acpi_bus_extract_wakeup_device_power_package(device->handle,
@@ -1386,7 +1354,6 @@
struct acpi_device_power_state *ps = &device->power.states[state];
char pathname[5] = { '_', 'P', 'R', '0' + state, '\0' };
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- acpi_handle handle;
acpi_status status;
INIT_LIST_HEAD(&ps->resources);
@@ -1409,8 +1376,7 @@
/* Evaluate "_PSx" to see if we can do explicit sets */
pathname[2] = 'S';
- status = acpi_get_handle(device->handle, pathname, &handle);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(device->handle, pathname))
ps->flags.explicit_set = 1;
/*
@@ -1429,28 +1395,21 @@
static void acpi_bus_get_power_flags(struct acpi_device *device)
{
- acpi_status status;
- acpi_handle handle;
u32 i;
/* Presence of _PS0|_PR0 indicates 'power manageable' */
- status = acpi_get_handle(device->handle, "_PS0", &handle);
- if (ACPI_FAILURE(status)) {
- status = acpi_get_handle(device->handle, "_PR0", &handle);
- if (ACPI_FAILURE(status))
- return;
- }
+ if (!acpi_has_method(device->handle, "_PS0") &&
+ !acpi_has_method(device->handle, "_PR0"))
+ return;
device->flags.power_manageable = 1;
/*
* Power Management Flags
*/
- status = acpi_get_handle(device->handle, "_PSC", &handle);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(device->handle, "_PSC"))
device->power.flags.explicit_get = 1;
- status = acpi_get_handle(device->handle, "_IRC", &handle);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(device->handle, "_IRC"))
device->power.flags.inrush_current = 1;
/*
@@ -1464,8 +1423,8 @@
/* Set defaults for D0 and D3 states (always valid) */
device->power.states[ACPI_STATE_D0].flags.valid = 1;
device->power.states[ACPI_STATE_D0].power = 100;
- device->power.states[ACPI_STATE_D3].flags.valid = 1;
- device->power.states[ACPI_STATE_D3].power = 0;
+ device->power.states[ACPI_STATE_D3_COLD].flags.valid = 1;
+ device->power.states[ACPI_STATE_D3_COLD].power = 0;
/* Set D3cold's explicit_set flag if _PS3 exists. */
if (device->power.states[ACPI_STATE_D3_HOT].flags.explicit_set)
@@ -1484,28 +1443,18 @@
static void acpi_bus_get_flags(struct acpi_device *device)
{
- acpi_status status = AE_OK;
- acpi_handle temp = NULL;
-
/* Presence of _STA indicates 'dynamic_status' */
- status = acpi_get_handle(device->handle, "_STA", &temp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(device->handle, "_STA"))
device->flags.dynamic_status = 1;
/* Presence of _RMV indicates 'removable' */
- status = acpi_get_handle(device->handle, "_RMV", &temp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(device->handle, "_RMV"))
device->flags.removable = 1;
/* Presence of _EJD|_EJ0 indicates 'ejectable' */
- status = acpi_get_handle(device->handle, "_EJD", &temp);
- if (ACPI_SUCCESS(status))
+ if (acpi_has_method(device->handle, "_EJD") ||
+ acpi_has_method(device->handle, "_EJ0"))
device->flags.ejectable = 1;
- else {
- status = acpi_get_handle(device->handle, "_EJ0", &temp);
- if (ACPI_SUCCESS(status))
- device->flags.ejectable = 1;
- }
}
static void acpi_device_get_busid(struct acpi_device *device)
@@ -1547,46 +1496,45 @@
}
/*
+ * acpi_ata_match - see if an acpi object is an ATA device
+ *
+ * If an acpi object has one of the ACPI ATA methods defined,
+ * then we can safely call it an ATA device.
+ */
+bool acpi_ata_match(acpi_handle handle)
+{
+ return acpi_has_method(handle, "_GTF") ||
+ acpi_has_method(handle, "_GTM") ||
+ acpi_has_method(handle, "_STM") ||
+ acpi_has_method(handle, "_SDD");
+}
+
+/*
* acpi_bay_match - see if an acpi object is an ejectable driver bay
*
* If an acpi object is ejectable and has one of the ACPI ATA methods defined,
* then we can safely call it an ejectable drive bay
*/
-static int acpi_bay_match(acpi_handle handle)
+bool acpi_bay_match(acpi_handle handle)
{
- acpi_status status;
- acpi_handle tmp;
acpi_handle phandle;
- status = acpi_get_handle(handle, "_EJ0", &tmp);
- if (ACPI_FAILURE(status))
- return -ENODEV;
+ if (!acpi_has_method(handle, "_EJ0"))
+ return false;
+ if (acpi_ata_match(handle))
+ return true;
+ if (ACPI_FAILURE(acpi_get_parent(handle, &phandle)))
+ return false;
- if ((ACPI_SUCCESS(acpi_get_handle(handle, "_GTF", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(handle, "_GTM", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(handle, "_STM", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(handle, "_SDD", &tmp))))
- return 0;
-
- if (acpi_get_parent(handle, &phandle))
- return -ENODEV;
-
- if ((ACPI_SUCCESS(acpi_get_handle(phandle, "_GTF", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(phandle, "_GTM", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(phandle, "_STM", &tmp))) ||
- (ACPI_SUCCESS(acpi_get_handle(phandle, "_SDD", &tmp))))
- return 0;
-
- return -ENODEV;
+ return acpi_ata_match(phandle);
}
/*
* acpi_dock_match - see if an acpi object has a _DCK method
*/
-static int acpi_dock_match(acpi_handle handle)
+bool acpi_dock_match(acpi_handle handle)
{
- acpi_handle tmp;
- return acpi_get_handle(handle, "_DCK", &tmp);
+ return acpi_has_method(handle, "_DCK");
}
const char *acpi_device_hid(struct acpi_device *device)
@@ -1624,34 +1572,26 @@
* lacks the SMBUS01 HID and the methods do not have the necessary "_"
* prefix. Work around this.
*/
-static int acpi_ibm_smbus_match(acpi_handle handle)
+static bool acpi_ibm_smbus_match(acpi_handle handle)
{
- acpi_handle h_dummy;
- struct acpi_buffer path = {ACPI_ALLOCATE_BUFFER, NULL};
- int result;
+ char node_name[ACPI_PATH_SEGMENT_LENGTH];
+ struct acpi_buffer path = { sizeof(node_name), node_name };
if (!dmi_name_in_vendors("IBM"))
- return -ENODEV;
+ return false;
/* Look for SMBS object */
- result = acpi_get_name(handle, ACPI_SINGLE_NAME, &path);
- if (result)
- return result;
-
- if (strcmp("SMBS", path.pointer)) {
- result = -ENODEV;
- goto out;
- }
+ if (ACPI_FAILURE(acpi_get_name(handle, ACPI_SINGLE_NAME, &path)) ||
+ strcmp("SMBS", path.pointer))
+ return false;
/* Does it have the necessary (but misnamed) methods? */
- result = -ENODEV;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "SBI", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(handle, "SBR", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(handle, "SBW", &h_dummy)))
- result = 0;
-out:
- kfree(path.pointer);
- return result;
+ if (acpi_has_method(handle, "SBI") &&
+ acpi_has_method(handle, "SBR") &&
+ acpi_has_method(handle, "SBW"))
+ return true;
+
+ return false;
}
static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
@@ -1699,11 +1639,11 @@
*/
if (acpi_is_video_device(handle))
acpi_add_id(pnp, ACPI_VIDEO_HID);
- else if (ACPI_SUCCESS(acpi_bay_match(handle)))
+ else if (acpi_bay_match(handle))
acpi_add_id(pnp, ACPI_BAY_HID);
- else if (ACPI_SUCCESS(acpi_dock_match(handle)))
+ else if (acpi_dock_match(handle))
acpi_add_id(pnp, ACPI_DOCK_HID);
- else if (!acpi_ibm_smbus_match(handle))
+ else if (acpi_ibm_smbus_match(handle))
acpi_add_id(pnp, ACPI_SMBUS_IBM_HID);
else if (list_empty(&pnp->ids) && handle == ACPI_ROOT_OBJECT) {
acpi_add_id(pnp, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
@@ -1914,7 +1854,6 @@
struct acpi_device *device = NULL;
int type;
unsigned long long sta;
- acpi_status status;
int result;
acpi_bus_get_device(handle, &device);
@@ -1935,10 +1874,8 @@
if (!(sta & ACPI_STA_DEVICE_PRESENT) &&
!(sta & ACPI_STA_DEVICE_FUNCTIONING)) {
struct acpi_device_wakeup wakeup;
- acpi_handle temp;
- status = acpi_get_handle(handle, "_PRW", &temp);
- if (ACPI_SUCCESS(status)) {
+ if (acpi_has_method(handle, "_PRW")) {
acpi_bus_extract_wakeup_device_power_package(handle,
&wakeup);
acpi_power_resources_list_free(&wakeup.resources);
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 72554fd..14df305 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -31,12 +31,9 @@
static void acpi_sleep_tts_switch(u32 acpi_state)
{
- union acpi_object in_arg = { ACPI_TYPE_INTEGER };
- struct acpi_object_list arg_list = { 1, &in_arg };
- acpi_status status = AE_OK;
+ acpi_status status;
- in_arg.integer.value = acpi_state;
- status = acpi_evaluate_object(NULL, "\\_TTS", &arg_list, NULL);
+ status = acpi_execute_simple_method(NULL, "\\_TTS", acpi_state);
if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
/*
* OS can't evaluate the _TTS object correctly. Some warning
@@ -423,10 +420,21 @@
}
/**
- * acpi_pm_end - Finish up suspend sequence.
+ * acpi_pm_start - Start system PM transition.
+ */
+static void acpi_pm_start(u32 acpi_state)
+{
+ acpi_target_sleep_state = acpi_state;
+ acpi_sleep_tts_switch(acpi_target_sleep_state);
+ acpi_scan_lock_acquire();
+}
+
+/**
+ * acpi_pm_end - Finish up system PM transition.
*/
static void acpi_pm_end(void)
{
+ acpi_scan_lock_release();
/*
* This is necessary in case acpi_pm_finish() is not called during a
* failing transition to a sleep state.
@@ -454,21 +462,19 @@
static int acpi_suspend_begin(suspend_state_t pm_state)
{
u32 acpi_state = acpi_suspend_states[pm_state];
- int error = 0;
+ int error;
error = (nvs_nosave || nvs_nosave_s3) ? 0 : suspend_nvs_alloc();
if (error)
return error;
- if (sleep_states[acpi_state]) {
- acpi_target_sleep_state = acpi_state;
- acpi_sleep_tts_switch(acpi_target_sleep_state);
- } else {
- printk(KERN_ERR "ACPI does not support this state: %d\n",
- pm_state);
- error = -ENOSYS;
+ if (!sleep_states[acpi_state]) {
+ pr_err("ACPI does not support sleep state S%u\n", acpi_state);
+ return -ENOSYS;
}
- return error;
+
+ acpi_pm_start(acpi_state);
+ return 0;
}
/**
@@ -634,10 +640,8 @@
int error;
error = nvs_nosave ? 0 : suspend_nvs_alloc();
- if (!error) {
- acpi_target_sleep_state = ACPI_STATE_S4;
- acpi_sleep_tts_switch(acpi_target_sleep_state);
- }
+ if (!error)
+ acpi_pm_start(ACPI_STATE_S4);
return error;
}
@@ -716,8 +720,10 @@
if (!error) {
if (!nvs_nosave)
error = suspend_nvs_alloc();
- if (!error)
+ if (!error) {
acpi_target_sleep_state = ACPI_STATE_S4;
+ acpi_scan_lock_acquire();
+ }
}
return error;
}
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 0055c83..6a03293 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -233,26 +233,16 @@
static int acpi_thermal_set_cooling_mode(struct acpi_thermal *tz, int mode)
{
- acpi_status status = AE_OK;
- union acpi_object arg0 = { ACPI_TYPE_INTEGER };
- struct acpi_object_list arg_list = { 1, &arg0 };
- acpi_handle handle = NULL;
-
-
if (!tz)
return -EINVAL;
- status = acpi_get_handle(tz->device->handle, "_SCP", &handle);
- if (ACPI_FAILURE(status)) {
+ if (!acpi_has_method(tz->device->handle, "_SCP")) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "_SCP not present\n"));
return -ENODEV;
- }
-
- arg0.integer.value = mode;
-
- status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
- if (ACPI_FAILURE(status))
+ } else if (ACPI_FAILURE(acpi_execute_simple_method(tz->device->handle,
+ "_SCP", mode))) {
return -ENODEV;
+ }
return 0;
}
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 74437130..552248b 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -495,3 +495,73 @@
kfree(buffer.pointer);
}
EXPORT_SYMBOL(acpi_handle_printk);
+
+/**
+ * acpi_has_method: Check whether @handle has a method named @name
+ * @handle: ACPI device handle
+ * @name: name of object or method
+ *
+ * Check whether @handle has a method named @name.
+ */
+bool acpi_has_method(acpi_handle handle, char *name)
+{
+ acpi_handle tmp;
+
+ return ACPI_SUCCESS(acpi_get_handle(handle, name, &tmp));
+}
+EXPORT_SYMBOL(acpi_has_method);
+
+acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
+ u64 arg)
+{
+ union acpi_object obj = { .type = ACPI_TYPE_INTEGER };
+ struct acpi_object_list arg_list = { .count = 1, .pointer = &obj, };
+
+ obj.integer.value = arg;
+
+ return acpi_evaluate_object(handle, method, &arg_list, NULL);
+}
+EXPORT_SYMBOL(acpi_execute_simple_method);
+
+/**
+ * acpi_evaluate_ej0: Evaluate _EJ0 method for hotplug operations
+ * @handle: ACPI device handle
+ *
+ * Evaluate device's _EJ0 method for hotplug operations.
+ */
+acpi_status acpi_evaluate_ej0(acpi_handle handle)
+{
+ acpi_status status;
+
+ status = acpi_execute_simple_method(handle, "_EJ0", 1);
+ if (status == AE_NOT_FOUND)
+ acpi_handle_warn(handle, "No _EJ0 support for device\n");
+ else if (ACPI_FAILURE(status))
+ acpi_handle_warn(handle, "Eject failed (0x%x)\n", status);
+
+ return status;
+}
+
+/**
+ * acpi_evaluate_lck: Evaluate _LCK method to lock/unlock device
+ * @handle: ACPI device handle
+ * @lock: lock device if non-zero, otherwise unlock device
+ *
+ * Evaluate device's _LCK method if present to lock/unlock device
+ */
+acpi_status acpi_evaluate_lck(acpi_handle handle, int lock)
+{
+ acpi_status status;
+
+ status = acpi_execute_simple_method(handle, "_LCK", !!lock);
+ if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+ if (lock)
+ acpi_handle_warn(handle,
+ "Locking device failed (0x%x)\n", status);
+ else
+ acpi_handle_warn(handle,
+ "Unlocking device failed (0x%x)\n", status);
+ }
+
+ return status;
+}
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 9c4ebfc..aebcf63 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1,5 +1,5 @@
/*
- * video.c - ACPI Video Driver ($Revision:$)
+ * video.c - ACPI Video Driver
*
* Copyright (C) 2004 Luming Yu <luming.yu@intel.com>
* Copyright (C) 2004 Bruno Ducrot <ducrot@poupinou.org>
@@ -88,7 +88,7 @@
static bool use_bios_initial_backlight = 1;
module_param(use_bios_initial_backlight, bool, 0644);
-static int register_count = 0;
+static int register_count;
static int acpi_video_bus_add(struct acpi_device *device);
static int acpi_video_bus_remove(struct acpi_device *device);
static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
@@ -118,26 +118,26 @@
};
struct acpi_video_bus_cap {
- u8 _DOS:1; /*Enable/Disable output switching */
- u8 _DOD:1; /*Enumerate all devices attached to display adapter */
- u8 _ROM:1; /*Get ROM Data */
- u8 _GPD:1; /*Get POST Device */
- u8 _SPD:1; /*Set POST Device */
- u8 _VPO:1; /*Video POST Options */
+ u8 _DOS:1; /* Enable/Disable output switching */
+ u8 _DOD:1; /* Enumerate all devices attached to display adapter */
+ u8 _ROM:1; /* Get ROM Data */
+ u8 _GPD:1; /* Get POST Device */
+ u8 _SPD:1; /* Set POST Device */
+ u8 _VPO:1; /* Video POST Options */
u8 reserved:2;
};
struct acpi_video_device_attrib {
u32 display_index:4; /* A zero-based instance of the Display */
- u32 display_port_attachment:4; /*This field differentiates the display type */
- u32 display_type:4; /*Describe the specific type in use */
- u32 vendor_specific:4; /*Chipset Vendor Specific */
- u32 bios_can_detect:1; /*BIOS can detect the device */
- u32 depend_on_vga:1; /*Non-VGA output device whose power is related to
+ u32 display_port_attachment:4; /* This field differentiates the display type */
+ u32 display_type:4; /* Describe the specific type in use */
+ u32 vendor_specific:4; /* Chipset Vendor Specific */
+ u32 bios_can_detect:1; /* BIOS can detect the device */
+ u32 depend_on_vga:1; /* Non-VGA output device whose power is related to
the VGA device. */
- u32 pipe_id:3; /*For VGA multiple-head devices. */
- u32 reserved:10; /*Must be 0 */
- u32 device_id_scheme:1; /*Device ID Scheme */
+ u32 pipe_id:3; /* For VGA multiple-head devices. */
+ u32 reserved:10; /* Must be 0 */
+ u32 device_id_scheme:1; /* Device ID Scheme */
};
struct acpi_video_enumerated_device {
@@ -174,19 +174,17 @@
};
struct acpi_video_device_cap {
- u8 _ADR:1; /*Return the unique ID */
- u8 _BCL:1; /*Query list of brightness control levels supported */
- u8 _BCM:1; /*Set the brightness level */
+ u8 _ADR:1; /* Return the unique ID */
+ u8 _BCL:1; /* Query list of brightness control levels supported */
+ u8 _BCM:1; /* Set the brightness level */
u8 _BQC:1; /* Get current brightness level */
u8 _BCQ:1; /* Some buggy BIOS uses _BCQ instead of _BQC */
- u8 _DDC:1; /*Return the EDID for this device */
+ u8 _DDC:1; /* Return the EDID for this device */
};
struct acpi_video_brightness_flags {
u8 _BCL_no_ac_battery_levels:1; /* no AC/Battery levels in _BCL */
- u8 _BCL_reversed:1; /* _BCL package is in a reversed order*/
- u8 _BCL_use_index:1; /* levels in _BCL are index values */
- u8 _BCM_use_index:1; /* input of _BCM is an index value */
+ u8 _BCL_reversed:1; /* _BCL package is in a reversed order */
u8 _BQC_use_index:1; /* _BQC returns an index value */
};
@@ -231,21 +229,22 @@
static int acpi_video_switch_brightness(struct acpi_video_device *device,
int event);
-/*backlight device sysfs support*/
+/* backlight device sysfs support */
static int acpi_video_get_brightness(struct backlight_device *bd)
{
unsigned long long cur_level;
int i;
- struct acpi_video_device *vd =
- (struct acpi_video_device *)bl_get_data(bd);
+ struct acpi_video_device *vd = bl_get_data(bd);
if (acpi_video_device_lcd_get_level_current(vd, &cur_level, false))
return -EINVAL;
for (i = 2; i < vd->brightness->count; i++) {
if (vd->brightness->levels[i] == cur_level)
- /* The first two entries are special - see page 575
- of the ACPI spec 3.0 */
- return i-2;
+ /*
+ * The first two entries are special - see page 575
+ * of the ACPI spec 3.0
+ */
+ return i - 2;
}
return 0;
}
@@ -253,8 +252,7 @@
static int acpi_video_set_brightness(struct backlight_device *bd)
{
int request_level = bd->props.brightness + 2;
- struct acpi_video_device *vd =
- (struct acpi_video_device *)bl_get_data(bd);
+ struct acpi_video_device *vd = bl_get_data(bd);
return acpi_video_device_lcd_set_level(vd,
vd->brightness->levels[request_level]);
@@ -302,11 +300,11 @@
struct acpi_video_device *video = acpi_driver_data(device);
int level;
- if ( state >= video->brightness->count - 2)
+ if (state >= video->brightness->count - 2)
return -EINVAL;
state = video->brightness->count - state;
- level = video->brightness->levels[state -1];
+ level = video->brightness->levels[state - 1];
return acpi_video_device_lcd_set_level(video, level);
}
@@ -316,9 +314,11 @@
.set_cur_state = video_set_cur_state,
};
-/* --------------------------------------------------------------------------
- Video Management
- -------------------------------------------------------------------------- */
+/*
+ * --------------------------------------------------------------------------
+ * Video Management
+ * --------------------------------------------------------------------------
+ */
static int
acpi_video_device_lcd_query_levels(struct acpi_video_device *device,
@@ -345,7 +345,7 @@
return 0;
- err:
+err:
kfree(buffer.pointer);
return status;
@@ -355,14 +355,10 @@
acpi_video_device_lcd_set_level(struct acpi_video_device *device, int level)
{
int status;
- union acpi_object arg0 = { ACPI_TYPE_INTEGER };
- struct acpi_object_list args = { 1, &arg0 };
int state;
- arg0.integer.value = level;
-
- status = acpi_evaluate_object(device->dev->handle, "_BCM",
- &args, NULL);
+ status = acpi_execute_simple_method(device->dev->handle,
+ "_BCM", level);
if (ACPI_FAILURE(status)) {
ACPI_ERROR((AE_INFO, "Evaluating _BCM failed"));
return -EIO;
@@ -546,7 +542,7 @@
if (device->brightness->levels[i] == *level) {
device->brightness->curr = *level;
return 0;
- }
+ }
/*
* BQC returned an invalid level.
* Stop using it.
@@ -556,7 +552,8 @@
buf));
device->cap._BQC = device->cap._BCQ = 0;
} else {
- /* Fixme:
+ /*
+ * Fixme:
* should we return an error or ignore this failure?
* dev->brightness->curr is a cached value which stores
* the correct current backlight level in most cases.
@@ -615,8 +612,8 @@
/*
* Arg:
- * video : video bus device pointer
- * bios_flag :
+ * video : video bus device pointer
+ * bios_flag :
* 0. The system BIOS should NOT automatically switch(toggle)
* the active display output.
* 1. The system BIOS should automatically switch (toggle) the
@@ -628,9 +625,9 @@
* lcd_flag :
* 0. The system BIOS should automatically control the brightness level
* of the LCD when the power changes from AC to DC
- * 1. The system BIOS should NOT automatically control the brightness
+ * 1. The system BIOS should NOT automatically control the brightness
* level of the LCD when the power changes from AC to DC.
- * Return Value:
+ * Return Value:
* -EINVAL wrong arg.
*/
@@ -638,18 +635,15 @@
acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag)
{
acpi_status status;
- union acpi_object arg0 = { ACPI_TYPE_INTEGER };
- struct acpi_object_list args = { 1, &arg0 };
if (!video->cap._DOS)
return 0;
if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1)
return -EINVAL;
- arg0.integer.value = (lcd_flag << 2) | bios_flag;
- video->dos_setting = arg0.integer.value;
- status = acpi_evaluate_object(video->device->handle, "_DOS",
- &args, NULL);
+ video->dos_setting = (lcd_flag << 2) | bios_flag;
+ status = acpi_execute_simple_method(video->device->handle, "_DOS",
+ (lcd_flag << 2) | bios_flag);
if (ACPI_FAILURE(status))
return -EIO;
@@ -717,8 +711,8 @@
/*
- * Arg:
- * device : video output device (LCD, CRT, ..)
+ * Arg:
+ * device : video output device (LCD, CRT, ..)
*
* Return Value:
* Maximum brightness level
@@ -806,16 +800,6 @@
br->count = count;
device->brightness = br;
- /* Check the input/output of _BQC/_BCL/_BCM */
- if ((max_level < 100) && (max_level <= (count - 2)))
- br->flags._BCL_use_index = 1;
-
- /*
- * _BCM is always consistent with _BCL,
- * at least for all the laptops we have ever seen.
- */
- br->flags._BCM_use_index = br->flags._BCL_use_index;
-
/* _BQC uses INDEX while _BCL uses VALUE in some laptops */
br->curr = level = max_level;
@@ -877,7 +861,7 @@
* device : video output device (LCD, CRT, ..)
*
* Return Value:
- * None
+ * None
*
* Find out all required AML methods defined under the output
* device.
@@ -885,31 +869,21 @@
static void acpi_video_device_find_cap(struct acpi_video_device *device)
{
- acpi_handle h_dummy1;
-
- if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) {
+ if (acpi_has_method(device->dev->handle, "_ADR"))
device->cap._ADR = 1;
- }
- if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCL", &h_dummy1))) {
+ if (acpi_has_method(device->dev->handle, "_BCL"))
device->cap._BCL = 1;
- }
- if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCM", &h_dummy1))) {
+ if (acpi_has_method(device->dev->handle, "_BCM"))
device->cap._BCM = 1;
- }
- if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle,"_BQC",&h_dummy1)))
+ if (acpi_has_method(device->dev->handle, "_BQC")) {
device->cap._BQC = 1;
- else if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_BCQ",
- &h_dummy1))) {
+ } else if (acpi_has_method(device->dev->handle, "_BCQ")) {
printk(KERN_WARNING FW_BUG "_BCQ is used instead of _BQC\n");
device->cap._BCQ = 1;
}
- if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_DDC", &h_dummy1))) {
+ if (acpi_has_method(device->dev->handle, "_DDC"))
device->cap._DDC = 1;
- }
-
- if (acpi_video_init_brightness(device))
- return;
if (acpi_video_backlight_support()) {
struct backlight_properties props;
@@ -917,9 +891,12 @@
acpi_handle acpi_parent;
struct device *parent = NULL;
int result;
- static int count = 0;
+ static int count;
char *name;
+ result = acpi_video_init_brightness(device);
+ if (result)
+ return;
name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
if (!name)
return;
@@ -979,46 +956,33 @@
if (result)
printk(KERN_ERR PREFIX "Create sysfs link\n");
- } else {
- /* Remove the brightness object. */
- kfree(device->brightness->levels);
- kfree(device->brightness);
- device->brightness = NULL;
}
}
/*
- * Arg:
- * device : video output device (VGA)
+ * Arg:
+ * device : video output device (VGA)
*
* Return Value:
- * None
+ * None
*
* Find out all required AML methods defined under the video bus device.
*/
static void acpi_video_bus_find_cap(struct acpi_video_bus *video)
{
- acpi_handle h_dummy1;
-
- if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) {
+ if (acpi_has_method(video->device->handle, "_DOS"))
video->cap._DOS = 1;
- }
- if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOD", &h_dummy1))) {
+ if (acpi_has_method(video->device->handle, "_DOD"))
video->cap._DOD = 1;
- }
- if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_ROM", &h_dummy1))) {
+ if (acpi_has_method(video->device->handle, "_ROM"))
video->cap._ROM = 1;
- }
- if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_GPD", &h_dummy1))) {
+ if (acpi_has_method(video->device->handle, "_GPD"))
video->cap._GPD = 1;
- }
- if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_SPD", &h_dummy1))) {
+ if (acpi_has_method(video->device->handle, "_SPD"))
video->cap._SPD = 1;
- }
- if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_VPO", &h_dummy1))) {
+ if (acpi_has_method(video->device->handle, "_VPO"))
video->cap._VPO = 1;
- }
}
/*
@@ -1039,7 +1003,8 @@
return -ENODEV;
pci_dev_put(dev);
- /* Since there is no HID, CID and so on for VGA driver, we have
+ /*
+ * Since there is no HID, CID and so on for VGA driver, we have
* to check well known required nodes.
*/
@@ -1069,12 +1034,14 @@
return status;
}
-/* --------------------------------------------------------------------------
- Driver Interface
- -------------------------------------------------------------------------- */
+/*
+ * --------------------------------------------------------------------------
+ * Driver Interface
+ * --------------------------------------------------------------------------
+ */
/* device interface */
-static struct acpi_video_device_attrib*
+static struct acpi_video_device_attrib *
acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id)
{
struct acpi_video_enumerated_device *ids;
@@ -1112,7 +1079,7 @@
unsigned long long device_id;
int status, device_type;
struct acpi_video_device *data;
- struct acpi_video_device_attrib* attribute;
+ struct acpi_video_device_attrib *attribute;
status =
acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
@@ -1134,7 +1101,7 @@
attribute = acpi_video_get_device_attr(video, device_id);
- if((attribute != NULL) && attribute->device_id_scheme) {
+ if (attribute && attribute->device_id_scheme) {
switch (attribute->display_type) {
case ACPI_VIDEO_DISPLAY_CRT:
data->flags.crt = 1;
@@ -1152,24 +1119,24 @@
data->flags.unknown = 1;
break;
}
- if(attribute->bios_can_detect)
+ if (attribute->bios_can_detect)
data->flags.bios = 1;
} else {
/* Check for legacy IDs */
device_type = acpi_video_get_device_type(video, device_id);
/* Ignore bits 16 and 18-20 */
switch (device_type & 0xffe2ffff) {
- case ACPI_VIDEO_DISPLAY_LEGACY_MONITOR:
- data->flags.crt = 1;
- break;
- case ACPI_VIDEO_DISPLAY_LEGACY_PANEL:
- data->flags.lcd = 1;
- break;
- case ACPI_VIDEO_DISPLAY_LEGACY_TV:
- data->flags.tvout = 1;
- break;
- default:
- data->flags.unknown = 1;
+ case ACPI_VIDEO_DISPLAY_LEGACY_MONITOR:
+ data->flags.crt = 1;
+ break;
+ case ACPI_VIDEO_DISPLAY_LEGACY_PANEL:
+ data->flags.lcd = 1;
+ break;
+ case ACPI_VIDEO_DISPLAY_LEGACY_TV:
+ data->flags.tvout = 1;
+ break;
+ default:
+ data->flags.unknown = 1;
}
}
@@ -1192,12 +1159,12 @@
/*
* Arg:
- * video : video bus device
+ * video : video bus device
*
* Return:
- * none
- *
- * Enumerate the video device list of the video bus,
+ * none
+ *
+ * Enumerate the video device list of the video bus,
* bind the ids with the corresponding video devices
* under the video bus.
*/
@@ -1216,13 +1183,13 @@
/*
* Arg:
- * video : video bus device
- * device : video output device under the video
- * bus
+ * video : video bus device
+ * device : video output device under the video
+ * bus
*
* Return:
- * none
- *
+ * none
+ *
* Bind the ids with the corresponding video devices
* under the video bus.
*/
@@ -1245,11 +1212,11 @@
/*
* Arg:
- * video : video bus device
+ * video : video bus device
*
* Return:
- * < 0 : error
- *
+ * < 0 : error
+ *
* Call _DOD to enumerate all devices attached to display adapter
*
*/
@@ -1310,7 +1277,7 @@
video->attached_array = active_list;
video->attached_count = count;
- out:
+out:
kfree(buffer.pointer);
return status;
}
@@ -1755,7 +1722,7 @@
if (!strcmp(device->pnp.bus_id, "VID")) {
if (instance)
device->pnp.bus_id[3] = '0' + instance;
- instance ++;
+ instance++;
}
/* a hack to fix the duplicate name "VGA" problem on Pa 3553 */
if (!strcmp(device->pnp.bus_id, "VGA")) {
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index c339774..940edbf 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -53,14 +53,13 @@
void **retyurn_value)
{
long *cap = context;
- acpi_handle h_dummy;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_BCM", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(handle, "_BCL", &h_dummy))) {
+ if (acpi_has_method(handle, "_BCM") &&
+ acpi_has_method(handle, "_BCL")) {
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found generic backlight "
"support\n"));
*cap |= ACPI_VIDEO_BACKLIGHT;
- if (ACPI_FAILURE(acpi_get_handle(handle, "_BQC", &h_dummy)))
+ if (!acpi_has_method(handle, "_BQC"))
printk(KERN_WARNING FW_BUG PREFIX "No _BQC method, "
"cannot determine initial brightness\n");
/* We have backlight support, no need to scan further */
@@ -79,22 +78,20 @@
*/
long acpi_is_video_device(acpi_handle handle)
{
- acpi_handle h_dummy;
long video_caps = 0;
/* Is this device able to support video switching ? */
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_DOD", &h_dummy)) ||
- ACPI_SUCCESS(acpi_get_handle(handle, "_DOS", &h_dummy)))
+ if (acpi_has_method(handle, "_DOD") || acpi_has_method(handle, "_DOS"))
video_caps |= ACPI_VIDEO_OUTPUT_SWITCHING;
/* Is this device able to retrieve a video ROM ? */
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_ROM", &h_dummy)))
+ if (acpi_has_method(handle, "_ROM"))
video_caps |= ACPI_VIDEO_ROM_AVAILABLE;
/* Is this device able to configure which video head to be POSTed ? */
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_VPO", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(handle, "_GPD", &h_dummy)) &&
- ACPI_SUCCESS(acpi_get_handle(handle, "_SPD", &h_dummy)))
+ if (acpi_has_method(handle, "_VPO") &&
+ acpi_has_method(handle, "_GPD") &&
+ acpi_has_method(handle, "_SPD"))
video_caps |= ACPI_VIDEO_DEVICE_POSTING;
/* Only check for backlight functionality if one of the above hit. */
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index cf4e702..da8170d 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -947,11 +947,11 @@
continue;
acpi_bus_set_power(dev_handle, state.event & PM_EVENT_RESUME ?
- ACPI_STATE_D0 : ACPI_STATE_D3);
+ ACPI_STATE_D0 : ACPI_STATE_D3_COLD);
}
if (!(state.event & PM_EVENT_RESUME))
- acpi_bus_set_power(port_handle, ACPI_STATE_D3);
+ acpi_bus_set_power(port_handle, ACPI_STATE_D3_COLD);
}
/**
diff --git a/drivers/ata/libata-pmp.c b/drivers/ata/libata-pmp.c
index 1c41722..20fd337 100644
--- a/drivers/ata/libata-pmp.c
+++ b/drivers/ata/libata-pmp.c
@@ -289,24 +289,24 @@
/* Disable sending Early R_OK.
* With "cached read" HDD testing and multiple ports busy on a SATA
- * host controller, 3726 PMP will very rarely drop a deferred
+ * host controller, 3x26 PMP will very rarely drop a deferred
* R_OK that was intended for the host. Symptom will be all
* 5 drives under test will timeout, get reset, and recover.
*/
- if (vendor == 0x1095 && devid == 0x3726) {
+ if (vendor == 0x1095 && (devid == 0x3726 || devid == 0x3826)) {
u32 reg;
err_mask = sata_pmp_read(&ap->link, PMP_GSCR_SII_POL, ®);
if (err_mask) {
rc = -EIO;
- reason = "failed to read Sil3726 Private Register";
+ reason = "failed to read Sil3x26 Private Register";
goto fail;
}
reg &= ~0x1;
err_mask = sata_pmp_write(&ap->link, PMP_GSCR_SII_POL, reg);
if (err_mask) {
rc = -EIO;
- reason = "failed to write Sil3726 Private Register";
+ reason = "failed to write Sil3x26 Private Register";
goto fail;
}
}
@@ -383,8 +383,8 @@
u16 devid = sata_pmp_gscr_devid(gscr);
struct ata_link *link;
- if (vendor == 0x1095 && devid == 0x3726) {
- /* sil3726 quirks */
+ if (vendor == 0x1095 && (devid == 0x3726 || devid == 0x3826)) {
+ /* sil3x26 quirks */
ata_for_each_link(link, ap, EDGE) {
/* link reports offline after LPM */
link->flags |= ATA_LFLAG_NO_LPM;
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 19720a0..851bd3f 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -293,6 +293,7 @@
{
struct sata_fsl_host_priv *host_priv = host->private_data;
void __iomem *hcr_base = host_priv->hcr_base;
+ unsigned long flags;
if (count > ICC_MAX_INT_COUNT_THRESHOLD)
count = ICC_MAX_INT_COUNT_THRESHOLD;
@@ -305,12 +306,12 @@
(count > ICC_MIN_INT_COUNT_THRESHOLD))
ticks = ICC_SAFE_INT_TICKS;
- spin_lock(&host->lock);
+ spin_lock_irqsave(&host->lock, flags);
iowrite32((count << 24 | ticks), hcr_base + ICC);
intr_coalescing_count = count;
intr_coalescing_ticks = ticks;
- spin_unlock(&host->lock);
+ spin_unlock_irqrestore(&host->lock, flags);
DPRINTK("interrupt coalescing, count = 0x%x, ticks = %x\n",
intr_coalescing_count, intr_coalescing_ticks);
diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
index d047d92..e9a4f46 100644
--- a/drivers/ata/sata_highbank.c
+++ b/drivers/ata/sata_highbank.c
@@ -86,11 +86,11 @@
#define SGPIO_SIGNALS 3
#define ECX_ACTIVITY_BITS 0x300000
-#define ECX_ACTIVITY_SHIFT 2
+#define ECX_ACTIVITY_SHIFT 0
#define ECX_LOCATE_BITS 0x80000
#define ECX_LOCATE_SHIFT 1
#define ECX_FAULT_BITS 0x400000
-#define ECX_FAULT_SHIFT 0
+#define ECX_FAULT_SHIFT 2
static inline int sgpio_bit_shift(struct ecx_plat_data *pdata, u32 port,
u32 shift)
{
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 4c358bc..4cf0717 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <linux/percpu.h>
#include <linux/acpi.h>
+#include <linux/of.h>
#include "base.h"
@@ -289,6 +290,7 @@
cpu->dev.release = cpu_device_release;
cpu->dev.offline_disabled = !cpu->hotpluggable;
cpu->dev.offline = !cpu_online(num);
+ cpu->dev.of_node = of_get_cpu_node(num, NULL);
#ifdef CONFIG_ARCH_HAS_CPU_AUTOPROBE
cpu->dev.bus->uevent = arch_cpu_uevent;
#endif
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 5a9b656..9f098a8 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -28,6 +28,7 @@
#include <linux/sched.h>
#include <linux/async.h>
#include <linux/suspend.h>
+#include <trace/events/power.h>
#include <linux/cpuidle.h>
#include "../base.h"
#include "power.h"
@@ -56,6 +57,30 @@
static int async_error;
+static char *pm_verb(int event)
+{
+ switch (event) {
+ case PM_EVENT_SUSPEND:
+ return "suspend";
+ case PM_EVENT_RESUME:
+ return "resume";
+ case PM_EVENT_FREEZE:
+ return "freeze";
+ case PM_EVENT_QUIESCE:
+ return "quiesce";
+ case PM_EVENT_HIBERNATE:
+ return "hibernate";
+ case PM_EVENT_THAW:
+ return "thaw";
+ case PM_EVENT_RESTORE:
+ return "restore";
+ case PM_EVENT_RECOVER:
+ return "recover";
+ default:
+ return "(unknown PM event)";
+ }
+}
+
/**
* device_pm_sleep_init - Initialize system suspend-related device fields.
* @dev: Device object being initialized.
@@ -172,16 +197,21 @@
}
static void initcall_debug_report(struct device *dev, ktime_t calltime,
- int error)
+ int error, pm_message_t state, char *info)
{
- ktime_t delta, rettime;
+ ktime_t rettime;
+ s64 nsecs;
+
+ rettime = ktime_get();
+ nsecs = (s64) ktime_to_ns(ktime_sub(rettime, calltime));
if (pm_print_times_enabled) {
- rettime = ktime_get();
- delta = ktime_sub(rettime, calltime);
pr_info("call %s+ returned %d after %Ld usecs\n", dev_name(dev),
- error, (unsigned long long)ktime_to_ns(delta) >> 10);
+ error, (unsigned long long)nsecs >> 10);
}
+
+ trace_device_pm_report_time(dev, info, nsecs, pm_verb(state.event),
+ error);
}
/**
@@ -309,30 +339,6 @@
return NULL;
}
-static char *pm_verb(int event)
-{
- switch (event) {
- case PM_EVENT_SUSPEND:
- return "suspend";
- case PM_EVENT_RESUME:
- return "resume";
- case PM_EVENT_FREEZE:
- return "freeze";
- case PM_EVENT_QUIESCE:
- return "quiesce";
- case PM_EVENT_HIBERNATE:
- return "hibernate";
- case PM_EVENT_THAW:
- return "thaw";
- case PM_EVENT_RESTORE:
- return "restore";
- case PM_EVENT_RECOVER:
- return "recover";
- default:
- return "(unknown PM event)";
- }
-}
-
static void pm_dev_dbg(struct device *dev, pm_message_t state, char *info)
{
dev_dbg(dev, "%s%s%s\n", info, pm_verb(state.event),
@@ -379,7 +385,7 @@
error = cb(dev);
suspend_report_result(cb, error);
- initcall_debug_report(dev, calltime, error);
+ initcall_debug_report(dev, calltime, error, state, info);
return error;
}
@@ -1027,7 +1033,8 @@
* @cb: Suspend callback to execute.
*/
static int legacy_suspend(struct device *dev, pm_message_t state,
- int (*cb)(struct device *dev, pm_message_t state))
+ int (*cb)(struct device *dev, pm_message_t state),
+ char *info)
{
int error;
ktime_t calltime;
@@ -1037,7 +1044,7 @@
error = cb(dev, state);
suspend_report_result(cb, error);
- initcall_debug_report(dev, calltime, error);
+ initcall_debug_report(dev, calltime, error, state, info);
return error;
}
@@ -1097,7 +1104,8 @@
goto Run;
} else if (dev->class->suspend) {
pm_dev_dbg(dev, state, "legacy class ");
- error = legacy_suspend(dev, state, dev->class->suspend);
+ error = legacy_suspend(dev, state, dev->class->suspend,
+ "legacy class ");
goto End;
}
}
@@ -1108,7 +1116,8 @@
callback = pm_op(dev->bus->pm, state);
} else if (dev->bus->suspend) {
pm_dev_dbg(dev, state, "legacy bus ");
- error = legacy_suspend(dev, state, dev->bus->suspend);
+ error = legacy_suspend(dev, state, dev->bus->suspend,
+ "legacy bus ");
goto End;
}
}
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index c8ec186..ef89897 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -460,6 +460,7 @@
srcu_notifier_call_chain(&dev_opp->head, OPP_EVENT_ADD, new_opp);
return 0;
}
+EXPORT_SYMBOL_GPL(opp_add);
/**
* opp_set_availability() - helper to set the availability of an opp
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 99cb944..4d45dba 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -906,16 +906,10 @@
int i;
bio_for_each_segment(bv, bio, i) {
- page = bv->bv_page;
/* Non-zero page count for non-head members of
- * compound pages is no longer allowed by the kernel,
- * but this has never been seen here.
+ * compound pages is no longer allowed by the kernel.
*/
- if (unlikely(PageCompound(page)))
- if (compound_trans_head(page) != page) {
- pr_crit("page tail used for block I/O\n");
- BUG();
- }
+ page = compound_trans_head(bv->bv_page);
atomic_inc(&page->_count);
}
}
@@ -924,10 +918,13 @@
bio_pagedec(struct bio *bio)
{
struct bio_vec *bv;
+ struct page *page;
int i;
- bio_for_each_segment(bv, bio, i)
- atomic_dec(&bv->bv_page->_count);
+ bio_for_each_segment(bv, bio, i) {
+ page = compound_trans_head(bv->bv_page);
+ atomic_dec(&page->_count);
+ }
}
static void
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 7332889..2009266 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -122,17 +122,8 @@
static void __init cci_ace_init_ports(void)
{
- int port, ac, cpu;
- u64 hwid;
- const u32 *cell;
- struct device_node *cpun, *cpus;
-
- cpus = of_find_node_by_path("/cpus");
- if (WARN(!cpus, "Missing cpus node, bailing out\n"))
- return;
-
- if (WARN_ON(of_property_read_u32(cpus, "#address-cells", &ac)))
- ac = of_n_addr_cells(cpus);
+ int port, cpu;
+ struct device_node *cpun;
/*
* Port index look-up speeds up the function disabling ports by CPU,
@@ -141,18 +132,13 @@
* The stashed index array is initialized for all possible CPUs
* at probe time.
*/
- for_each_child_of_node(cpus, cpun) {
- if (of_node_cmp(cpun->type, "cpu"))
- continue;
- cell = of_get_property(cpun, "reg", NULL);
- if (WARN(!cell, "%s: missing reg property\n", cpun->full_name))
+ for_each_possible_cpu(cpu) {
+ /* too early to use cpu->of_node */
+ cpun = of_get_cpu_node(cpu, NULL);
+
+ if (WARN(!cpun, "Missing cpu device node\n"))
continue;
- hwid = of_read_number(cell, ac);
- cpu = get_logical_index(hwid & MPIDR_HWID_BITMASK);
-
- if (cpu < 0 || !cpu_possible(cpu))
- continue;
port = __cci_ace_get_port(cpun, ACE_PORT);
if (port < 0)
continue;
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c
index 1bdb882..4e57397 100644
--- a/drivers/clk/samsung/clk-exynos4.c
+++ b/drivers/clk/samsung/clk-exynos4.c
@@ -581,11 +581,15 @@
DIV(none, "div_spi1_isp", "mout_spi1_isp", E4X12_DIV_ISP, 16, 4),
DIV(none, "div_spi1_isp_pre", "div_spi1_isp", E4X12_DIV_ISP, 20, 8),
DIV(none, "div_uart_isp", "mout_uart_isp", E4X12_DIV_ISP, 28, 4),
- DIV(div_isp0, "div_isp0", "aclk200", E4X12_DIV_ISP0, 0, 3),
- DIV(div_isp1, "div_isp1", "aclk200", E4X12_DIV_ISP0, 4, 3),
+ DIV_F(div_isp0, "div_isp0", "aclk200", E4X12_DIV_ISP0, 0, 3,
+ CLK_GET_RATE_NOCACHE, 0),
+ DIV_F(div_isp1, "div_isp1", "aclk200", E4X12_DIV_ISP0, 4, 3,
+ CLK_GET_RATE_NOCACHE, 0),
DIV(none, "div_mpwm", "div_isp1", E4X12_DIV_ISP1, 0, 3),
- DIV(div_mcuisp0, "div_mcuisp0", "aclk400_mcuisp", E4X12_DIV_ISP1, 4, 3),
- DIV(div_mcuisp1, "div_mcuisp1", "div_mcuisp0", E4X12_DIV_ISP1, 8, 3),
+ DIV_F(div_mcuisp0, "div_mcuisp0", "aclk400_mcuisp", E4X12_DIV_ISP1,
+ 4, 3, CLK_GET_RATE_NOCACHE, 0),
+ DIV_F(div_mcuisp1, "div_mcuisp1", "div_mcuisp0", E4X12_DIV_ISP1,
+ 8, 3, CLK_GET_RATE_NOCACHE, 0),
DIV(sclk_fimg2d, "sclk_fimg2d", "mout_g2d", DIV_DMC1, 0, 4),
};
@@ -863,57 +867,57 @@
GATE_DA(i2s0, "samsung-i2s.0", "i2s0", "aclk100",
E4X12_GATE_IP_MAUDIO, 3, 0, 0, "iis"),
GATE(fimc_isp, "isp", "aclk200", E4X12_GATE_ISP0, 0,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(fimc_drc, "drc", "aclk200", E4X12_GATE_ISP0, 1,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(fimc_fd, "fd", "aclk200", E4X12_GATE_ISP0, 2,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(fimc_lite0, "lite0", "aclk200", E4X12_GATE_ISP0, 3,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(fimc_lite1, "lite1", "aclk200", E4X12_GATE_ISP0, 4,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(mcuisp, "mcuisp", "aclk200", E4X12_GATE_ISP0, 5,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(gicisp, "gicisp", "aclk200", E4X12_GATE_ISP0, 7,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(smmu_isp, "smmu_isp", "aclk200", E4X12_GATE_ISP0, 8,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(smmu_drc, "smmu_drc", "aclk200", E4X12_GATE_ISP0, 9,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(smmu_fd, "smmu_fd", "aclk200", E4X12_GATE_ISP0, 10,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(smmu_lite0, "smmu_lite0", "aclk200", E4X12_GATE_ISP0, 11,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(smmu_lite1, "smmu_lite1", "aclk200", E4X12_GATE_ISP0, 12,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(ppmuispmx, "ppmuispmx", "aclk200", E4X12_GATE_ISP0, 20,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(ppmuispx, "ppmuispx", "aclk200", E4X12_GATE_ISP0, 21,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(mcuctl_isp, "mcuctl_isp", "aclk200", E4X12_GATE_ISP0, 23,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(mpwm_isp, "mpwm_isp", "aclk200", E4X12_GATE_ISP0, 24,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(i2c0_isp, "i2c0_isp", "aclk200", E4X12_GATE_ISP0, 25,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(i2c1_isp, "i2c1_isp", "aclk200", E4X12_GATE_ISP0, 26,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(mtcadc_isp, "mtcadc_isp", "aclk200", E4X12_GATE_ISP0, 27,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(pwm_isp, "pwm_isp", "aclk200", E4X12_GATE_ISP0, 28,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(wdt_isp, "wdt_isp", "aclk200", E4X12_GATE_ISP0, 30,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(uart_isp, "uart_isp", "aclk200", E4X12_GATE_ISP0, 31,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(asyncaxim, "asyncaxim", "aclk200", E4X12_GATE_ISP1, 0,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(smmu_ispcx, "smmu_ispcx", "aclk200", E4X12_GATE_ISP1, 4,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(spi0_isp, "spi0_isp", "aclk200", E4X12_GATE_ISP1, 12,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(spi1_isp, "spi1_isp", "aclk200", E4X12_GATE_ISP1, 13,
- CLK_IGNORE_UNUSED, 0),
+ CLK_IGNORE_UNUSED | CLK_GET_RATE_NOCACHE, 0),
GATE(g2d, "g2d", "aclk200", GATE_IP_DMC, 23, 0, 0),
};
diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
index 5c205b6..089d3e3 100644
--- a/drivers/clk/zynq/clkc.c
+++ b/drivers/clk/zynq/clkc.c
@@ -71,6 +71,7 @@
static DEFINE_SPINLOCK(ddrpll_lock);
static DEFINE_SPINLOCK(iopll_lock);
static DEFINE_SPINLOCK(armclk_lock);
+static DEFINE_SPINLOCK(swdtclk_lock);
static DEFINE_SPINLOCK(ddrclk_lock);
static DEFINE_SPINLOCK(dciclk_lock);
static DEFINE_SPINLOCK(gem0clk_lock);
@@ -293,7 +294,7 @@
}
clks[swdt] = clk_register_mux(NULL, clk_output_name[swdt],
swdt_ext_clk_mux_parents, 2, CLK_SET_RATE_PARENT,
- SLCR_SWDT_CLK_SEL, 0, 1, 0, &gem0clk_lock);
+ SLCR_SWDT_CLK_SEL, 0, 1, 0, &swdtclk_lock);
/* DDR clocks */
clk = clk_register_divider(NULL, "ddr2x_div", "ddrpll", 0,
@@ -364,8 +365,9 @@
CLK_SET_RATE_PARENT, SLCR_GEM0_CLK_CTRL, 20, 6,
CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
&gem0clk_lock);
- clk = clk_register_mux(NULL, "gem0_emio_mux", gem0_mux_parents, 2, 0,
- SLCR_GEM0_CLK_CTRL, 6, 1, 0, &gem0clk_lock);
+ clk = clk_register_mux(NULL, "gem0_emio_mux", gem0_mux_parents, 2,
+ CLK_SET_RATE_PARENT, SLCR_GEM0_CLK_CTRL, 6, 1, 0,
+ &gem0clk_lock);
clks[gem0] = clk_register_gate(NULL, clk_output_name[gem0],
"gem0_emio_mux", CLK_SET_RATE_PARENT,
SLCR_GEM0_CLK_CTRL, 0, 0, &gem0clk_lock);
@@ -386,8 +388,9 @@
CLK_SET_RATE_PARENT, SLCR_GEM1_CLK_CTRL, 20, 6,
CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
&gem1clk_lock);
- clk = clk_register_mux(NULL, "gem1_emio_mux", gem1_mux_parents, 2, 0,
- SLCR_GEM1_CLK_CTRL, 6, 1, 0, &gem1clk_lock);
+ clk = clk_register_mux(NULL, "gem1_emio_mux", gem1_mux_parents, 2,
+ CLK_SET_RATE_PARENT, SLCR_GEM1_CLK_CTRL, 6, 1, 0,
+ &gem1clk_lock);
clks[gem1] = clk_register_gate(NULL, clk_output_name[gem1],
"gem1_emio_mux", CLK_SET_RATE_PARENT,
SLCR_GEM1_CLK_CTRL, 0, 0, &gem1clk_lock);
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index de4d5d9..0fa204b 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -17,37 +17,47 @@
big.LITTLE platform. This gets frequency tables from DT.
config ARM_EXYNOS_CPUFREQ
- bool "SAMSUNG EXYNOS SoCs"
- depends on ARCH_EXYNOS
+ bool
select CPU_FREQ_TABLE
- default y
- help
- This adds the CPUFreq driver common part for Samsung
- EXYNOS SoCs.
-
- If in doubt, say N.
config ARM_EXYNOS4210_CPUFREQ
- def_bool CPU_EXYNOS4210
+ bool "SAMSUNG EXYNOS4210"
+ depends on CPU_EXYNOS4210
+ default y
+ select ARM_EXYNOS_CPUFREQ
help
This adds the CPUFreq driver for Samsung EXYNOS4210
SoC (S5PV310 or S5PC210).
+ If in doubt, say N.
+
config ARM_EXYNOS4X12_CPUFREQ
- def_bool (SOC_EXYNOS4212 || SOC_EXYNOS4412)
+ bool "SAMSUNG EXYNOS4x12"
+ depends on (SOC_EXYNOS4212 || SOC_EXYNOS4412)
+ default y
+ select ARM_EXYNOS_CPUFREQ
help
This adds the CPUFreq driver for Samsung EXYNOS4X12
SoC (EXYNOS4212 or EXYNOS4412).
+ If in doubt, say N.
+
config ARM_EXYNOS5250_CPUFREQ
- def_bool SOC_EXYNOS5250
+ bool "SAMSUNG EXYNOS5250"
+ depends on SOC_EXYNOS5250
+ default y
+ select ARM_EXYNOS_CPUFREQ
help
This adds the CPUFreq driver for Samsung EXYNOS5250
SoC.
+ If in doubt, say N.
+
config ARM_EXYNOS5440_CPUFREQ
- def_bool SOC_EXYNOS5440
+ bool "SAMSUNG EXYNOS5440"
+ depends on SOC_EXYNOS5440
depends on HAVE_CLK && PM_OPP && OF
+ default y
select CPU_FREQ_TABLE
help
This adds the CPUFreq driver for Samsung EXYNOS5440
@@ -55,6 +65,8 @@
different than previous exynos controllers so not using
the common exynos framework.
+ If in doubt, say N.
+
config ARM_HIGHBANK_CPUFREQ
tristate "Calxeda Highbank-based"
depends on ARCH_HIGHBANK
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index d345b5a..ad5866c 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -23,7 +23,7 @@
# powernow-k8 can load then. ACPI is preferred to all other hardware-specific drivers.
# speedstep-* is preferred over p4-clockmod.
-obj-$(CONFIG_X86_ACPI_CPUFREQ) += acpi-cpufreq.o mperf.o
+obj-$(CONFIG_X86_ACPI_CPUFREQ) += acpi-cpufreq.o
obj-$(CONFIG_X86_POWERNOW_K8) += powernow-k8.o
obj-$(CONFIG_X86_PCC_CPUFREQ) += pcc-cpufreq.o
obj-$(CONFIG_X86_POWERNOW_K6) += powernow-k6.o
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 3926402..a1260b4 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -45,7 +45,6 @@
#include <asm/msr.h>
#include <asm/processor.h>
#include <asm/cpufeature.h>
-#include "mperf.h"
MODULE_AUTHOR("Paul Diefenbaugh, Dominik Brodowski");
MODULE_DESCRIPTION("ACPI Processor P-States Driver");
@@ -198,7 +197,7 @@
return sprintf(buf, "%u\n", boost_enabled);
}
-static struct freq_attr cpb = __ATTR(cpb, 0644, show_cpb, store_cpb);
+cpufreq_freq_attr_rw(cpb);
#endif
static int check_est_cpu(unsigned int cpuid)
@@ -710,7 +709,7 @@
return blacklisted;
#endif
- data = kzalloc(sizeof(struct acpi_cpufreq_data), GFP_KERNEL);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return -ENOMEM;
@@ -800,7 +799,7 @@
goto err_unreg;
}
- data->freq_table = kmalloc(sizeof(struct cpufreq_frequency_table) *
+ data->freq_table = kmalloc(sizeof(*data->freq_table) *
(perf->state_count+1), GFP_KERNEL);
if (!data->freq_table) {
result = -ENOMEM;
@@ -861,10 +860,6 @@
/* notify BIOS that we exist */
acpi_processor_notify_smm(THIS_MODULE);
- /* Check for APERF/MPERF support in hardware */
- if (boot_cpu_has(X86_FEATURE_APERFMPERF))
- acpi_cpufreq_driver.getavg = cpufreq_get_measured_perf;
-
pr_debug("CPU%u - ACPI performance management activated.\n", cpu);
for (i = 0; i < perf->state_count; i++)
pr_debug(" %cP%d: %d MHz, %d mW, %d uS\n",
@@ -941,7 +936,6 @@
.exit = acpi_cpufreq_cpu_exit,
.resume = acpi_cpufreq_resume,
.name = "acpi-cpufreq",
- .owner = THIS_MODULE,
.attr = acpi_cpufreq_attr,
};
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
index fd9e3ea..480c0bd 100644
--- a/drivers/cpufreq/arm_big_little_dt.c
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -19,12 +19,11 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/device.h>
#include <linux/export.h>
#include <linux/module.h>
-#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/opp.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
@@ -34,27 +33,13 @@
/* get cpu node with valid operating-points */
static struct device_node *get_cpu_node_with_valid_op(int cpu)
{
- struct device_node *np = NULL, *parent;
- int count = 0;
+ struct device_node *np = of_cpu_device_node_get(cpu);
- parent = of_find_node_by_path("/cpus");
- if (!parent) {
- pr_err("failed to find OF /cpus\n");
- return NULL;
+ if (!of_get_property(np, "operating-points", NULL)) {
+ of_node_put(np);
+ np = NULL;
}
- for_each_child_of_node(parent, np) {
- if (count++ != cpu)
- continue;
- if (!of_get_property(np, "operating-points", NULL)) {
- of_node_put(np);
- np = NULL;
- }
-
- break;
- }
-
- of_node_put(parent);
return np;
}
@@ -63,11 +48,12 @@
struct device_node *np;
int ret;
- np = get_cpu_node_with_valid_op(cpu_dev->id);
- if (!np)
- return -ENODATA;
+ np = of_node_get(cpu_dev->of_node);
+ if (!np) {
+ pr_err("failed to find cpu%d node\n", cpu_dev->id);
+ return -ENOENT;
+ }
- cpu_dev->of_node = np;
ret = of_init_opp_table(cpu_dev);
of_node_put(np);
@@ -79,9 +65,11 @@
struct device_node *np;
u32 transition_latency = CPUFREQ_ETERNAL;
- np = get_cpu_node_with_valid_op(cpu_dev->id);
- if (!np)
+ np = of_node_get(cpu_dev->of_node);
+ if (!np) {
+ pr_info("Failed to find cpu node. Use CPUFREQ_ETERNAL transition latency\n");
return CPUFREQ_ETERNAL;
+ }
of_property_read_u32(np, "clock-latency", &transition_latency);
of_node_put(np);
diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index 6544887..e0c38d9 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -108,7 +108,6 @@
static struct cpufreq_driver at32_driver = {
.name = "at32ap",
- .owner = THIS_MODULE,
.init = at32_cpufreq_driver_init,
.verify = at32_verify_speed,
.target = at32_set_target,
diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 9cdbbd2..ef05978 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -225,7 +225,6 @@
.get = bfin_getfreq_khz,
.init = __bfin_cpu_init,
.name = "bfin cpufreq",
- .owner = THIS_MODULE,
.attr = bfin_freq_attr,
};
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index ad1fde2..bad620e 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -69,7 +69,7 @@
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- if (cpu_reg) {
+ if (!IS_ERR(cpu_reg)) {
rcu_read_lock();
opp = opp_find_freq_ceil(cpu_dev, &freq_Hz);
if (IS_ERR(opp)) {
@@ -90,7 +90,7 @@
freqs.new / 1000, volt ? volt / 1000 : -1);
/* scaling up? scale voltage before frequency */
- if (cpu_reg && freqs.new > freqs.old) {
+ if (!IS_ERR(cpu_reg) && freqs.new > freqs.old) {
ret = regulator_set_voltage_tol(cpu_reg, volt, tol);
if (ret) {
pr_err("failed to scale voltage up: %d\n", ret);
@@ -102,14 +102,14 @@
ret = clk_set_rate(cpu_clk, freq_exact);
if (ret) {
pr_err("failed to set clock rate: %d\n", ret);
- if (cpu_reg)
+ if (!IS_ERR(cpu_reg))
regulator_set_voltage_tol(cpu_reg, volt_old, tol);
freqs.new = freqs.old;
goto post_notify;
}
/* scaling down? scale voltage after frequency */
- if (cpu_reg && freqs.new < freqs.old) {
+ if (!IS_ERR(cpu_reg) && freqs.new < freqs.old) {
ret = regulator_set_voltage_tol(cpu_reg, volt, tol);
if (ret) {
pr_err("failed to scale voltage down: %d\n", ret);
@@ -174,29 +174,17 @@
static int cpu0_cpufreq_probe(struct platform_device *pdev)
{
- struct device_node *np, *parent;
+ struct device_node *np;
int ret;
- parent = of_find_node_by_path("/cpus");
- if (!parent) {
- pr_err("failed to find OF /cpus\n");
- return -ENOENT;
- }
+ cpu_dev = &pdev->dev;
- for_each_child_of_node(parent, np) {
- if (of_get_property(np, "operating-points", NULL))
- break;
- }
-
+ np = of_node_get(cpu_dev->of_node);
if (!np) {
pr_err("failed to find cpu0 node\n");
- ret = -ENOENT;
- goto out_put_parent;
+ return -ENOENT;
}
- cpu_dev = &pdev->dev;
- cpu_dev->of_node = np;
-
cpu_reg = devm_regulator_get(cpu_dev, "cpu0");
if (IS_ERR(cpu_reg)) {
/*
@@ -210,7 +198,6 @@
}
pr_warn("failed to get cpu0 regulator: %ld\n",
PTR_ERR(cpu_reg));
- cpu_reg = NULL;
}
cpu_clk = devm_clk_get(cpu_dev, NULL);
@@ -269,15 +256,12 @@
}
of_node_put(np);
- of_node_put(parent);
return 0;
out_free_table:
opp_free_cpufreq_table(cpu_dev, &freq_table);
out_put_node:
of_node_put(np);
-out_put_parent:
- of_node_put(parent);
return ret;
}
diff --git a/drivers/cpufreq/cpufreq-nforce2.c b/drivers/cpufreq/cpufreq-nforce2.c
index af1542d..b83d45f6 100644
--- a/drivers/cpufreq/cpufreq-nforce2.c
+++ b/drivers/cpufreq/cpufreq-nforce2.c
@@ -379,7 +379,6 @@
.get = nforce2_get,
.init = nforce2_cpu_init,
.exit = nforce2_cpu_exit,
- .owner = THIS_MODULE,
};
#ifdef MODULE
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index f0a5e2b..5c75e31 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -17,24 +17,17 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <asm/cputime.h>
-#include <linux/kernel.h>
-#include <linux/kernel_stat.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/notifier.h>
+#include <linux/cpu.h>
#include <linux/cpufreq.h>
#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/tick.h>
#include <linux/device.h>
-#include <linux/slab.h>
-#include <linux/cpu.h>
-#include <linux/completion.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include <linux/syscore_ops.h>
-
+#include <linux/tick.h>
#include <trace/events/power.h>
/**
@@ -44,8 +37,10 @@
*/
static struct cpufreq_driver *cpufreq_driver;
static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data);
+static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data_fallback);
static DEFINE_RWLOCK(cpufreq_driver_lock);
static DEFINE_MUTEX(cpufreq_governor_lock);
+static LIST_HEAD(cpufreq_policy_list);
#ifdef CONFIG_HOTPLUG_CPU
/* This one keeps track of the previously set governor of a removed CPU */
@@ -69,15 +64,14 @@
* - Lock should not be held across
* __cpufreq_governor(data, CPUFREQ_GOV_STOP);
*/
-static DEFINE_PER_CPU(int, cpufreq_policy_cpu);
static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem);
#define lock_policy_rwsem(mode, cpu) \
static int lock_policy_rwsem_##mode(int cpu) \
{ \
- int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu); \
- BUG_ON(policy_cpu == -1); \
- down_##mode(&per_cpu(cpu_policy_rwsem, policy_cpu)); \
+ struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); \
+ BUG_ON(!policy); \
+ down_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu)); \
\
return 0; \
}
@@ -88,14 +82,20 @@
#define unlock_policy_rwsem(mode, cpu) \
static void unlock_policy_rwsem_##mode(int cpu) \
{ \
- int policy_cpu = per_cpu(cpufreq_policy_cpu, cpu); \
- BUG_ON(policy_cpu == -1); \
- up_##mode(&per_cpu(cpu_policy_rwsem, policy_cpu)); \
+ struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu); \
+ BUG_ON(!policy); \
+ up_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu)); \
}
unlock_policy_rwsem(read, cpu);
unlock_policy_rwsem(write, cpu);
+/*
+ * rwsem to guarantee that cpufreq driver module doesn't unload during critical
+ * sections
+ */
+static DECLARE_RWSEM(cpufreq_rwsem);
+
/* internal prototypes */
static int __cpufreq_governor(struct cpufreq_policy *policy,
unsigned int event);
@@ -183,78 +183,46 @@
}
EXPORT_SYMBOL_GPL(get_cpu_idle_time);
-static struct cpufreq_policy *__cpufreq_cpu_get(unsigned int cpu, bool sysfs)
+struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
{
- struct cpufreq_policy *data;
+ struct cpufreq_policy *policy = NULL;
unsigned long flags;
- if (cpu >= nr_cpu_ids)
- goto err_out;
+ if (cpufreq_disabled() || (cpu >= nr_cpu_ids))
+ return NULL;
+
+ if (!down_read_trylock(&cpufreq_rwsem))
+ return NULL;
/* get the cpufreq driver */
read_lock_irqsave(&cpufreq_driver_lock, flags);
- if (!cpufreq_driver)
- goto err_out_unlock;
-
- if (!try_module_get(cpufreq_driver->owner))
- goto err_out_unlock;
-
- /* get the CPU */
- data = per_cpu(cpufreq_cpu_data, cpu);
-
- if (!data)
- goto err_out_put_module;
-
- if (!sysfs && !kobject_get(&data->kobj))
- goto err_out_put_module;
+ if (cpufreq_driver) {
+ /* get the CPU */
+ policy = per_cpu(cpufreq_cpu_data, cpu);
+ if (policy)
+ kobject_get(&policy->kobj);
+ }
read_unlock_irqrestore(&cpufreq_driver_lock, flags);
- return data;
-err_out_put_module:
- module_put(cpufreq_driver->owner);
-err_out_unlock:
- read_unlock_irqrestore(&cpufreq_driver_lock, flags);
-err_out:
- return NULL;
-}
+ if (!policy)
+ up_read(&cpufreq_rwsem);
-struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
-{
- if (cpufreq_disabled())
- return NULL;
-
- return __cpufreq_cpu_get(cpu, false);
+ return policy;
}
EXPORT_SYMBOL_GPL(cpufreq_cpu_get);
-static struct cpufreq_policy *cpufreq_cpu_get_sysfs(unsigned int cpu)
-{
- return __cpufreq_cpu_get(cpu, true);
-}
-
-static void __cpufreq_cpu_put(struct cpufreq_policy *data, bool sysfs)
-{
- if (!sysfs)
- kobject_put(&data->kobj);
- module_put(cpufreq_driver->owner);
-}
-
-void cpufreq_cpu_put(struct cpufreq_policy *data)
+void cpufreq_cpu_put(struct cpufreq_policy *policy)
{
if (cpufreq_disabled())
return;
- __cpufreq_cpu_put(data, false);
+ kobject_put(&policy->kobj);
+ up_read(&cpufreq_rwsem);
}
EXPORT_SYMBOL_GPL(cpufreq_cpu_put);
-static void cpufreq_cpu_put_sysfs(struct cpufreq_policy *data)
-{
- __cpufreq_cpu_put(data, true);
-}
-
/*********************************************************************
* EXTERNALLY AFFECTING FREQUENCY CHANGES *
*********************************************************************/
@@ -459,8 +427,8 @@
show_one(scaling_max_freq, max);
show_one(scaling_cur_freq, cur);
-static int __cpufreq_set_policy(struct cpufreq_policy *data,
- struct cpufreq_policy *policy);
+static int __cpufreq_set_policy(struct cpufreq_policy *policy,
+ struct cpufreq_policy *new_policy);
/**
* cpufreq_per_cpu_attr_write() / store_##file_name() - sysfs write access
@@ -699,12 +667,12 @@
struct cpufreq_policy *policy = to_policy(kobj);
struct freq_attr *fattr = to_attr(attr);
ssize_t ret = -EINVAL;
- policy = cpufreq_cpu_get_sysfs(policy->cpu);
- if (!policy)
- goto no_policy;
+
+ if (!down_read_trylock(&cpufreq_rwsem))
+ goto exit;
if (lock_policy_rwsem_read(policy->cpu) < 0)
- goto fail;
+ goto up_read;
if (fattr->show)
ret = fattr->show(policy, buf);
@@ -712,9 +680,10 @@
ret = -EIO;
unlock_policy_rwsem_read(policy->cpu);
-fail:
- cpufreq_cpu_put_sysfs(policy);
-no_policy:
+
+up_read:
+ up_read(&cpufreq_rwsem);
+exit:
return ret;
}
@@ -724,12 +693,12 @@
struct cpufreq_policy *policy = to_policy(kobj);
struct freq_attr *fattr = to_attr(attr);
ssize_t ret = -EINVAL;
- policy = cpufreq_cpu_get_sysfs(policy->cpu);
- if (!policy)
- goto no_policy;
+
+ if (!down_read_trylock(&cpufreq_rwsem))
+ goto exit;
if (lock_policy_rwsem_write(policy->cpu) < 0)
- goto fail;
+ goto up_read;
if (fattr->store)
ret = fattr->store(policy, buf, count);
@@ -737,9 +706,10 @@
ret = -EIO;
unlock_policy_rwsem_write(policy->cpu);
-fail:
- cpufreq_cpu_put_sysfs(policy);
-no_policy:
+
+up_read:
+ up_read(&cpufreq_rwsem);
+exit:
return ret;
}
@@ -805,41 +775,32 @@
EXPORT_SYMBOL(cpufreq_sysfs_remove_file);
/* symlink affected CPUs */
-static int cpufreq_add_dev_symlink(unsigned int cpu,
- struct cpufreq_policy *policy)
+static int cpufreq_add_dev_symlink(struct cpufreq_policy *policy)
{
unsigned int j;
int ret = 0;
for_each_cpu(j, policy->cpus) {
- struct cpufreq_policy *managed_policy;
struct device *cpu_dev;
- if (j == cpu)
+ if (j == policy->cpu)
continue;
- pr_debug("CPU %u already managed, adding link\n", j);
- managed_policy = cpufreq_cpu_get(cpu);
+ pr_debug("Adding link for CPU: %u\n", j);
cpu_dev = get_cpu_device(j);
ret = sysfs_create_link(&cpu_dev->kobj, &policy->kobj,
"cpufreq");
- if (ret) {
- cpufreq_cpu_put(managed_policy);
- return ret;
- }
+ if (ret)
+ break;
}
return ret;
}
-static int cpufreq_add_dev_interface(unsigned int cpu,
- struct cpufreq_policy *policy,
+static int cpufreq_add_dev_interface(struct cpufreq_policy *policy,
struct device *dev)
{
- struct cpufreq_policy new_policy;
struct freq_attr **drv_attr;
- unsigned long flags;
int ret = 0;
- unsigned int j;
/* prepare interface data */
ret = kobject_init_and_add(&policy->kobj, &ktype_cpufreq,
@@ -871,18 +832,24 @@
goto err_out_kobj_put;
}
- write_lock_irqsave(&cpufreq_driver_lock, flags);
- for_each_cpu(j, policy->cpus) {
- per_cpu(cpufreq_cpu_data, j) = policy;
- per_cpu(cpufreq_policy_cpu, j) = policy->cpu;
- }
- write_unlock_irqrestore(&cpufreq_driver_lock, flags);
-
- ret = cpufreq_add_dev_symlink(cpu, policy);
+ ret = cpufreq_add_dev_symlink(policy);
if (ret)
goto err_out_kobj_put;
- memcpy(&new_policy, policy, sizeof(struct cpufreq_policy));
+ return ret;
+
+err_out_kobj_put:
+ kobject_put(&policy->kobj);
+ wait_for_completion(&policy->kobj_unregister);
+ return ret;
+}
+
+static void cpufreq_init_policy(struct cpufreq_policy *policy)
+{
+ struct cpufreq_policy new_policy;
+ int ret = 0;
+
+ memcpy(&new_policy, policy, sizeof(*policy));
/* assure that the starting sequence is run in __cpufreq_set_policy */
policy->governor = NULL;
@@ -896,72 +863,106 @@
if (cpufreq_driver->exit)
cpufreq_driver->exit(policy);
}
- return ret;
-
-err_out_kobj_put:
- kobject_put(&policy->kobj);
- wait_for_completion(&policy->kobj_unregister);
- return ret;
}
#ifdef CONFIG_HOTPLUG_CPU
-static int cpufreq_add_policy_cpu(unsigned int cpu, unsigned int sibling,
- struct device *dev)
+static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy,
+ unsigned int cpu, struct device *dev,
+ bool frozen)
{
- struct cpufreq_policy *policy;
int ret = 0, has_target = !!cpufreq_driver->target;
unsigned long flags;
- policy = cpufreq_cpu_get(sibling);
- WARN_ON(!policy);
+ if (has_target) {
+ ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
+ if (ret) {
+ pr_err("%s: Failed to stop governor\n", __func__);
+ return ret;
+ }
+ }
- if (has_target)
- __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
-
- lock_policy_rwsem_write(sibling);
+ lock_policy_rwsem_write(policy->cpu);
write_lock_irqsave(&cpufreq_driver_lock, flags);
cpumask_set_cpu(cpu, policy->cpus);
- per_cpu(cpufreq_policy_cpu, cpu) = policy->cpu;
per_cpu(cpufreq_cpu_data, cpu) = policy;
write_unlock_irqrestore(&cpufreq_driver_lock, flags);
- unlock_policy_rwsem_write(sibling);
+ unlock_policy_rwsem_write(policy->cpu);
if (has_target) {
- __cpufreq_governor(policy, CPUFREQ_GOV_START);
- __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
+ if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) ||
+ (ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))) {
+ pr_err("%s: Failed to start governor\n", __func__);
+ return ret;
+ }
}
- ret = sysfs_create_link(&dev->kobj, &policy->kobj, "cpufreq");
- if (ret) {
- cpufreq_cpu_put(policy);
- return ret;
- }
+ /* Don't touch sysfs links during light-weight init */
+ if (!frozen)
+ ret = sysfs_create_link(&dev->kobj, &policy->kobj, "cpufreq");
- return 0;
+ return ret;
}
#endif
-/**
- * cpufreq_add_dev - add a CPU device
- *
- * Adds the cpufreq interface for a CPU device.
- *
- * The Oracle says: try running cpufreq registration/unregistration concurrently
- * with with cpu hotplugging and all hell will break loose. Tried to clean this
- * mess up, but more thorough testing is needed. - Mathieu
- */
-static int cpufreq_add_dev(struct device *dev, struct subsys_interface *sif)
+static struct cpufreq_policy *cpufreq_policy_restore(unsigned int cpu)
+{
+ struct cpufreq_policy *policy;
+ unsigned long flags;
+
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
+
+ policy = per_cpu(cpufreq_cpu_data_fallback, cpu);
+
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+
+ return policy;
+}
+
+static struct cpufreq_policy *cpufreq_policy_alloc(void)
+{
+ struct cpufreq_policy *policy;
+
+ policy = kzalloc(sizeof(*policy), GFP_KERNEL);
+ if (!policy)
+ return NULL;
+
+ if (!alloc_cpumask_var(&policy->cpus, GFP_KERNEL))
+ goto err_free_policy;
+
+ if (!zalloc_cpumask_var(&policy->related_cpus, GFP_KERNEL))
+ goto err_free_cpumask;
+
+ INIT_LIST_HEAD(&policy->policy_list);
+ return policy;
+
+err_free_cpumask:
+ free_cpumask_var(policy->cpus);
+err_free_policy:
+ kfree(policy);
+
+ return NULL;
+}
+
+static void cpufreq_policy_free(struct cpufreq_policy *policy)
+{
+ free_cpumask_var(policy->related_cpus);
+ free_cpumask_var(policy->cpus);
+ kfree(policy);
+}
+
+static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif,
+ bool frozen)
{
unsigned int j, cpu = dev->id;
int ret = -ENOMEM;
struct cpufreq_policy *policy;
unsigned long flags;
#ifdef CONFIG_HOTPLUG_CPU
+ struct cpufreq_policy *tpolicy;
struct cpufreq_governor *gov;
- int sibling;
#endif
if (cpu_is_offline(cpu))
@@ -977,43 +978,38 @@
cpufreq_cpu_put(policy);
return 0;
}
+#endif
+
+ if (!down_read_trylock(&cpufreq_rwsem))
+ return 0;
#ifdef CONFIG_HOTPLUG_CPU
/* Check if this cpu was hot-unplugged earlier and has siblings */
read_lock_irqsave(&cpufreq_driver_lock, flags);
- for_each_online_cpu(sibling) {
- struct cpufreq_policy *cp = per_cpu(cpufreq_cpu_data, sibling);
- if (cp && cpumask_test_cpu(cpu, cp->related_cpus)) {
+ list_for_each_entry(tpolicy, &cpufreq_policy_list, policy_list) {
+ if (cpumask_test_cpu(cpu, tpolicy->related_cpus)) {
read_unlock_irqrestore(&cpufreq_driver_lock, flags);
- return cpufreq_add_policy_cpu(cpu, sibling, dev);
+ ret = cpufreq_add_policy_cpu(tpolicy, cpu, dev, frozen);
+ up_read(&cpufreq_rwsem);
+ return ret;
}
}
read_unlock_irqrestore(&cpufreq_driver_lock, flags);
#endif
-#endif
- if (!try_module_get(cpufreq_driver->owner)) {
- ret = -EINVAL;
- goto module_out;
- }
+ if (frozen)
+ /* Restore the saved policy when doing light-weight init */
+ policy = cpufreq_policy_restore(cpu);
+ else
+ policy = cpufreq_policy_alloc();
- policy = kzalloc(sizeof(struct cpufreq_policy), GFP_KERNEL);
if (!policy)
goto nomem_out;
- if (!alloc_cpumask_var(&policy->cpus, GFP_KERNEL))
- goto err_free_policy;
-
- if (!zalloc_cpumask_var(&policy->related_cpus, GFP_KERNEL))
- goto err_free_cpumask;
-
policy->cpu = cpu;
policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
cpumask_copy(policy->cpus, cpumask_of(cpu));
- /* Initially set CPU itself as the policy_cpu */
- per_cpu(cpufreq_policy_cpu, cpu) = cpu;
-
init_completion(&policy->kobj_unregister);
INIT_WORK(&policy->update, handle_update);
@@ -1050,12 +1046,26 @@
}
#endif
- ret = cpufreq_add_dev_interface(cpu, policy, dev);
- if (ret)
- goto err_out_unregister;
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
+ for_each_cpu(j, policy->cpus)
+ per_cpu(cpufreq_cpu_data, j) = policy;
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+
+ if (!frozen) {
+ ret = cpufreq_add_dev_interface(policy, dev);
+ if (ret)
+ goto err_out_unregister;
+ }
+
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
+ list_add(&policy->policy_list, &cpufreq_policy_list);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+
+ cpufreq_init_policy(policy);
kobject_uevent(&policy->kobj, KOBJ_ADD);
- module_put(cpufreq_driver->owner);
+ up_read(&cpufreq_rwsem);
+
pr_debug("initialization complete\n");
return 0;
@@ -1066,32 +1076,33 @@
per_cpu(cpufreq_cpu_data, j) = NULL;
write_unlock_irqrestore(&cpufreq_driver_lock, flags);
- kobject_put(&policy->kobj);
- wait_for_completion(&policy->kobj_unregister);
-
err_set_policy_cpu:
- per_cpu(cpufreq_policy_cpu, cpu) = -1;
- free_cpumask_var(policy->related_cpus);
-err_free_cpumask:
- free_cpumask_var(policy->cpus);
-err_free_policy:
- kfree(policy);
+ cpufreq_policy_free(policy);
nomem_out:
- module_put(cpufreq_driver->owner);
-module_out:
+ up_read(&cpufreq_rwsem);
+
return ret;
}
+/**
+ * cpufreq_add_dev - add a CPU device
+ *
+ * Adds the cpufreq interface for a CPU device.
+ *
+ * The Oracle says: try running cpufreq registration/unregistration concurrently
+ * with with cpu hotplugging and all hell will break loose. Tried to clean this
+ * mess up, but more thorough testing is needed. - Mathieu
+ */
+static int cpufreq_add_dev(struct device *dev, struct subsys_interface *sif)
+{
+ return __cpufreq_add_dev(dev, sif, false);
+}
+
static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
{
- int j;
-
policy->last_cpu = policy->cpu;
policy->cpu = cpu;
- for_each_cpu(j, policy->cpus)
- per_cpu(cpufreq_policy_cpu, j) = cpu;
-
#ifdef CONFIG_CPU_FREQ_TABLE
cpufreq_frequency_table_update_policy_cpu(policy);
#endif
@@ -1099,6 +1110,37 @@
CPUFREQ_UPDATE_POLICY_CPU, policy);
}
+static int cpufreq_nominate_new_policy_cpu(struct cpufreq_policy *policy,
+ unsigned int old_cpu, bool frozen)
+{
+ struct device *cpu_dev;
+ int ret;
+
+ /* first sibling now owns the new sysfs dir */
+ cpu_dev = get_cpu_device(cpumask_first(policy->cpus));
+
+ /* Don't touch sysfs files during light-weight tear-down */
+ if (frozen)
+ return cpu_dev->id;
+
+ sysfs_remove_link(&cpu_dev->kobj, "cpufreq");
+ ret = kobject_move(&policy->kobj, &cpu_dev->kobj);
+ if (ret) {
+ pr_err("%s: Failed to move kobj: %d", __func__, ret);
+
+ WARN_ON(lock_policy_rwsem_write(old_cpu));
+ cpumask_set_cpu(old_cpu, policy->cpus);
+ unlock_policy_rwsem_write(old_cpu);
+
+ ret = sysfs_create_link(&cpu_dev->kobj, &policy->kobj,
+ "cpufreq");
+
+ return -EINVAL;
+ }
+
+ return cpu_dev->id;
+}
+
/**
* __cpufreq_remove_dev - remove a CPU device
*
@@ -1107,111 +1149,126 @@
* This routine frees the rwsem before returning.
*/
static int __cpufreq_remove_dev(struct device *dev,
- struct subsys_interface *sif)
+ struct subsys_interface *sif, bool frozen)
{
- unsigned int cpu = dev->id, ret, cpus;
+ unsigned int cpu = dev->id, cpus;
+ int new_cpu, ret;
unsigned long flags;
- struct cpufreq_policy *data;
+ struct cpufreq_policy *policy;
struct kobject *kobj;
struct completion *cmp;
- struct device *cpu_dev;
pr_debug("%s: unregistering CPU %u\n", __func__, cpu);
write_lock_irqsave(&cpufreq_driver_lock, flags);
- data = per_cpu(cpufreq_cpu_data, cpu);
- per_cpu(cpufreq_cpu_data, cpu) = NULL;
+ policy = per_cpu(cpufreq_cpu_data, cpu);
+
+ /* Save the policy somewhere when doing a light-weight tear-down */
+ if (frozen)
+ per_cpu(cpufreq_cpu_data_fallback, cpu) = policy;
write_unlock_irqrestore(&cpufreq_driver_lock, flags);
- if (!data) {
+ if (!policy) {
pr_debug("%s: No cpu_data found\n", __func__);
return -EINVAL;
}
- if (cpufreq_driver->target)
- __cpufreq_governor(data, CPUFREQ_GOV_STOP);
+ if (cpufreq_driver->target) {
+ ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
+ if (ret) {
+ pr_err("%s: Failed to stop governor\n", __func__);
+ return ret;
+ }
+ }
#ifdef CONFIG_HOTPLUG_CPU
if (!cpufreq_driver->setpolicy)
strncpy(per_cpu(cpufreq_cpu_governor, cpu),
- data->governor->name, CPUFREQ_NAME_LEN);
+ policy->governor->name, CPUFREQ_NAME_LEN);
#endif
WARN_ON(lock_policy_rwsem_write(cpu));
- cpus = cpumask_weight(data->cpus);
+ cpus = cpumask_weight(policy->cpus);
if (cpus > 1)
- cpumask_clear_cpu(cpu, data->cpus);
+ cpumask_clear_cpu(cpu, policy->cpus);
unlock_policy_rwsem_write(cpu);
- if (cpu != data->cpu) {
+ if (cpu != policy->cpu && !frozen) {
sysfs_remove_link(&dev->kobj, "cpufreq");
} else if (cpus > 1) {
- /* first sibling now owns the new sysfs dir */
- cpu_dev = get_cpu_device(cpumask_first(data->cpus));
- sysfs_remove_link(&cpu_dev->kobj, "cpufreq");
- ret = kobject_move(&data->kobj, &cpu_dev->kobj);
- if (ret) {
- pr_err("%s: Failed to move kobj: %d", __func__, ret);
+ new_cpu = cpufreq_nominate_new_policy_cpu(policy, cpu, frozen);
+ if (new_cpu >= 0) {
WARN_ON(lock_policy_rwsem_write(cpu));
- cpumask_set_cpu(cpu, data->cpus);
-
- write_lock_irqsave(&cpufreq_driver_lock, flags);
- per_cpu(cpufreq_cpu_data, cpu) = data;
- write_unlock_irqrestore(&cpufreq_driver_lock, flags);
-
+ update_policy_cpu(policy, new_cpu);
unlock_policy_rwsem_write(cpu);
- ret = sysfs_create_link(&cpu_dev->kobj, &data->kobj,
- "cpufreq");
- return -EINVAL;
+ if (!frozen) {
+ pr_debug("%s: policy Kobject moved to cpu: %d "
+ "from: %d\n",__func__, new_cpu, cpu);
+ }
}
-
- WARN_ON(lock_policy_rwsem_write(cpu));
- update_policy_cpu(data, cpu_dev->id);
- unlock_policy_rwsem_write(cpu);
- pr_debug("%s: policy Kobject moved to cpu: %d from: %d\n",
- __func__, cpu_dev->id, cpu);
}
/* If cpu is last user of policy, free policy */
if (cpus == 1) {
- if (cpufreq_driver->target)
- __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT);
-
- lock_policy_rwsem_read(cpu);
- kobj = &data->kobj;
- cmp = &data->kobj_unregister;
- unlock_policy_rwsem_read(cpu);
- kobject_put(kobj);
-
- /* we need to make sure that the underlying kobj is actually
- * not referenced anymore by anybody before we proceed with
- * unloading.
- */
- pr_debug("waiting for dropping of refcount\n");
- wait_for_completion(cmp);
- pr_debug("wait complete\n");
-
- if (cpufreq_driver->exit)
- cpufreq_driver->exit(data);
-
- free_cpumask_var(data->related_cpus);
- free_cpumask_var(data->cpus);
- kfree(data);
- } else {
- pr_debug("%s: removing link, cpu: %d\n", __func__, cpu);
- cpufreq_cpu_put(data);
if (cpufreq_driver->target) {
- __cpufreq_governor(data, CPUFREQ_GOV_START);
- __cpufreq_governor(data, CPUFREQ_GOV_LIMITS);
+ ret = __cpufreq_governor(policy,
+ CPUFREQ_GOV_POLICY_EXIT);
+ if (ret) {
+ pr_err("%s: Failed to exit governor\n",
+ __func__);
+ return ret;
+ }
+ }
+
+ if (!frozen) {
+ lock_policy_rwsem_read(cpu);
+ kobj = &policy->kobj;
+ cmp = &policy->kobj_unregister;
+ unlock_policy_rwsem_read(cpu);
+ kobject_put(kobj);
+
+ /*
+ * We need to make sure that the underlying kobj is
+ * actually not referenced anymore by anybody before we
+ * proceed with unloading.
+ */
+ pr_debug("waiting for dropping of refcount\n");
+ wait_for_completion(cmp);
+ pr_debug("wait complete\n");
+ }
+
+ /*
+ * Perform the ->exit() even during light-weight tear-down,
+ * since this is a core component, and is essential for the
+ * subsequent light-weight ->init() to succeed.
+ */
+ if (cpufreq_driver->exit)
+ cpufreq_driver->exit(policy);
+
+ /* Remove policy from list of active policies */
+ write_lock_irqsave(&cpufreq_driver_lock, flags);
+ list_del(&policy->policy_list);
+ write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+
+ if (!frozen)
+ cpufreq_policy_free(policy);
+ } else {
+ if (cpufreq_driver->target) {
+ if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) ||
+ (ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))) {
+ pr_err("%s: Failed to start governor\n",
+ __func__);
+ return ret;
+ }
}
}
- per_cpu(cpufreq_policy_cpu, cpu) = -1;
+ per_cpu(cpufreq_cpu_data, cpu) = NULL;
return 0;
}
@@ -1223,7 +1280,7 @@
if (cpu_is_offline(cpu))
return 0;
- retval = __cpufreq_remove_dev(dev, sif);
+ retval = __cpufreq_remove_dev(dev, sif, false);
return retval;
}
@@ -1344,10 +1401,9 @@
unsigned int cpufreq_get(unsigned int cpu)
{
unsigned int ret_freq = 0;
- struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
- if (!policy)
- goto out;
+ if (!down_read_trylock(&cpufreq_rwsem))
+ return 0;
if (unlikely(lock_policy_rwsem_read(cpu)))
goto out_policy;
@@ -1357,8 +1413,8 @@
unlock_policy_rwsem_read(cpu);
out_policy:
- cpufreq_cpu_put(policy);
-out:
+ up_read(&cpufreq_rwsem);
+
return ret_freq;
}
EXPORT_SYMBOL(cpufreq_get);
@@ -1381,23 +1437,23 @@
int ret = 0;
int cpu = smp_processor_id();
- struct cpufreq_policy *cpu_policy;
+ struct cpufreq_policy *policy;
pr_debug("suspending cpu %u\n", cpu);
/* If there's no policy for the boot CPU, we have nothing to do. */
- cpu_policy = cpufreq_cpu_get(cpu);
- if (!cpu_policy)
+ policy = cpufreq_cpu_get(cpu);
+ if (!policy)
return 0;
if (cpufreq_driver->suspend) {
- ret = cpufreq_driver->suspend(cpu_policy);
+ ret = cpufreq_driver->suspend(policy);
if (ret)
printk(KERN_ERR "cpufreq: suspend failed in ->suspend "
- "step on CPU %u\n", cpu_policy->cpu);
+ "step on CPU %u\n", policy->cpu);
}
- cpufreq_cpu_put(cpu_policy);
+ cpufreq_cpu_put(policy);
return ret;
}
@@ -1419,28 +1475,28 @@
int ret = 0;
int cpu = smp_processor_id();
- struct cpufreq_policy *cpu_policy;
+ struct cpufreq_policy *policy;
pr_debug("resuming cpu %u\n", cpu);
/* If there's no policy for the boot CPU, we have nothing to do. */
- cpu_policy = cpufreq_cpu_get(cpu);
- if (!cpu_policy)
+ policy = cpufreq_cpu_get(cpu);
+ if (!policy)
return;
if (cpufreq_driver->resume) {
- ret = cpufreq_driver->resume(cpu_policy);
+ ret = cpufreq_driver->resume(policy);
if (ret) {
printk(KERN_ERR "cpufreq: resume failed in ->resume "
- "step on CPU %u\n", cpu_policy->cpu);
+ "step on CPU %u\n", policy->cpu);
goto fail;
}
}
- schedule_work(&cpu_policy->update);
+ schedule_work(&policy->update);
fail:
- cpufreq_cpu_put(cpu_policy);
+ cpufreq_cpu_put(policy);
}
static struct syscore_ops cpufreq_syscore_ops = {
@@ -1594,18 +1650,6 @@
}
EXPORT_SYMBOL_GPL(cpufreq_driver_target);
-int __cpufreq_driver_getavg(struct cpufreq_policy *policy, unsigned int cpu)
-{
- if (cpufreq_disabled())
- return 0;
-
- if (!cpufreq_driver->getavg)
- return 0;
-
- return cpufreq_driver->getavg(policy, cpu);
-}
-EXPORT_SYMBOL_GPL(__cpufreq_driver_getavg);
-
/*
* when "event" is CPUFREQ_GOV_LIMITS
*/
@@ -1640,8 +1684,9 @@
}
}
- if (!try_module_get(policy->governor->owner))
- return -EINVAL;
+ if (event == CPUFREQ_GOV_POLICY_INIT)
+ if (!try_module_get(policy->governor->owner))
+ return -EINVAL;
pr_debug("__cpufreq_governor for CPU %u, event %u\n",
policy->cpu, event);
@@ -1677,11 +1722,8 @@
mutex_unlock(&cpufreq_governor_lock);
}
- /* we keep one module reference alive for
- each CPU governed by this CPU */
- if ((event != CPUFREQ_GOV_START) || ret)
- module_put(policy->governor->owner);
- if ((event == CPUFREQ_GOV_STOP) && !ret)
+ if (((event == CPUFREQ_GOV_POLICY_INIT) && ret) ||
+ ((event == CPUFREQ_GOV_POLICY_EXIT) && !ret))
module_put(policy->governor->owner);
return ret;
@@ -1761,7 +1803,7 @@
if (!cpu_policy)
return -EINVAL;
- memcpy(policy, cpu_policy, sizeof(struct cpufreq_policy));
+ memcpy(policy, cpu_policy, sizeof(*policy));
cpufreq_cpu_put(cpu_policy);
return 0;
@@ -1772,95 +1814,94 @@
* data : current policy.
* policy : policy to be set.
*/
-static int __cpufreq_set_policy(struct cpufreq_policy *data,
- struct cpufreq_policy *policy)
+static int __cpufreq_set_policy(struct cpufreq_policy *policy,
+ struct cpufreq_policy *new_policy)
{
int ret = 0, failed = 1;
- pr_debug("setting new policy for CPU %u: %u - %u kHz\n", policy->cpu,
- policy->min, policy->max);
+ pr_debug("setting new policy for CPU %u: %u - %u kHz\n", new_policy->cpu,
+ new_policy->min, new_policy->max);
- memcpy(&policy->cpuinfo, &data->cpuinfo,
- sizeof(struct cpufreq_cpuinfo));
+ memcpy(&new_policy->cpuinfo, &policy->cpuinfo, sizeof(policy->cpuinfo));
- if (policy->min > data->max || policy->max < data->min) {
+ if (new_policy->min > policy->max || new_policy->max < policy->min) {
ret = -EINVAL;
goto error_out;
}
/* verify the cpu speed can be set within this limit */
- ret = cpufreq_driver->verify(policy);
+ ret = cpufreq_driver->verify(new_policy);
if (ret)
goto error_out;
/* adjust if necessary - all reasons */
blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
- CPUFREQ_ADJUST, policy);
+ CPUFREQ_ADJUST, new_policy);
/* adjust if necessary - hardware incompatibility*/
blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
- CPUFREQ_INCOMPATIBLE, policy);
+ CPUFREQ_INCOMPATIBLE, new_policy);
/*
* verify the cpu speed can be set within this limit, which might be
* different to the first one
*/
- ret = cpufreq_driver->verify(policy);
+ ret = cpufreq_driver->verify(new_policy);
if (ret)
goto error_out;
/* notification of the new policy */
blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
- CPUFREQ_NOTIFY, policy);
+ CPUFREQ_NOTIFY, new_policy);
- data->min = policy->min;
- data->max = policy->max;
+ policy->min = new_policy->min;
+ policy->max = new_policy->max;
pr_debug("new min and max freqs are %u - %u kHz\n",
- data->min, data->max);
+ policy->min, policy->max);
if (cpufreq_driver->setpolicy) {
- data->policy = policy->policy;
+ policy->policy = new_policy->policy;
pr_debug("setting range\n");
- ret = cpufreq_driver->setpolicy(policy);
+ ret = cpufreq_driver->setpolicy(new_policy);
} else {
- if (policy->governor != data->governor) {
+ if (new_policy->governor != policy->governor) {
/* save old, working values */
- struct cpufreq_governor *old_gov = data->governor;
+ struct cpufreq_governor *old_gov = policy->governor;
pr_debug("governor switch\n");
/* end old governor */
- if (data->governor) {
- __cpufreq_governor(data, CPUFREQ_GOV_STOP);
- unlock_policy_rwsem_write(policy->cpu);
- __cpufreq_governor(data,
+ if (policy->governor) {
+ __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
+ unlock_policy_rwsem_write(new_policy->cpu);
+ __cpufreq_governor(policy,
CPUFREQ_GOV_POLICY_EXIT);
- lock_policy_rwsem_write(policy->cpu);
+ lock_policy_rwsem_write(new_policy->cpu);
}
/* start new governor */
- data->governor = policy->governor;
- if (!__cpufreq_governor(data, CPUFREQ_GOV_POLICY_INIT)) {
- if (!__cpufreq_governor(data, CPUFREQ_GOV_START)) {
+ policy->governor = new_policy->governor;
+ if (!__cpufreq_governor(policy, CPUFREQ_GOV_POLICY_INIT)) {
+ if (!__cpufreq_governor(policy, CPUFREQ_GOV_START)) {
failed = 0;
} else {
- unlock_policy_rwsem_write(policy->cpu);
- __cpufreq_governor(data,
+ unlock_policy_rwsem_write(new_policy->cpu);
+ __cpufreq_governor(policy,
CPUFREQ_GOV_POLICY_EXIT);
- lock_policy_rwsem_write(policy->cpu);
+ lock_policy_rwsem_write(new_policy->cpu);
}
}
if (failed) {
/* new governor failed, so re-start old one */
pr_debug("starting governor %s failed\n",
- data->governor->name);
+ policy->governor->name);
if (old_gov) {
- data->governor = old_gov;
- __cpufreq_governor(data,
+ policy->governor = old_gov;
+ __cpufreq_governor(policy,
CPUFREQ_GOV_POLICY_INIT);
- __cpufreq_governor(data,
+ __cpufreq_governor(policy,
CPUFREQ_GOV_START);
}
ret = -EINVAL;
@@ -1869,7 +1910,7 @@
/* might be a policy change, too, so fall through */
}
pr_debug("governor: change or update limits\n");
- __cpufreq_governor(data, CPUFREQ_GOV_LIMITS);
+ ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS);
}
error_out:
@@ -1885,11 +1926,11 @@
*/
int cpufreq_update_policy(unsigned int cpu)
{
- struct cpufreq_policy *data = cpufreq_cpu_get(cpu);
- struct cpufreq_policy policy;
+ struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
+ struct cpufreq_policy new_policy;
int ret;
- if (!data) {
+ if (!policy) {
ret = -ENODEV;
goto no_policy;
}
@@ -1900,34 +1941,34 @@
}
pr_debug("updating policy for CPU %u\n", cpu);
- memcpy(&policy, data, sizeof(struct cpufreq_policy));
- policy.min = data->user_policy.min;
- policy.max = data->user_policy.max;
- policy.policy = data->user_policy.policy;
- policy.governor = data->user_policy.governor;
+ memcpy(&new_policy, policy, sizeof(*policy));
+ new_policy.min = policy->user_policy.min;
+ new_policy.max = policy->user_policy.max;
+ new_policy.policy = policy->user_policy.policy;
+ new_policy.governor = policy->user_policy.governor;
/*
* BIOS might change freq behind our back
* -> ask driver for current freq and notify governors about a change
*/
if (cpufreq_driver->get) {
- policy.cur = cpufreq_driver->get(cpu);
- if (!data->cur) {
+ new_policy.cur = cpufreq_driver->get(cpu);
+ if (!policy->cur) {
pr_debug("Driver did not initialize current freq");
- data->cur = policy.cur;
+ policy->cur = new_policy.cur;
} else {
- if (data->cur != policy.cur && cpufreq_driver->target)
- cpufreq_out_of_sync(cpu, data->cur,
- policy.cur);
+ if (policy->cur != new_policy.cur && cpufreq_driver->target)
+ cpufreq_out_of_sync(cpu, policy->cur,
+ new_policy.cur);
}
}
- ret = __cpufreq_set_policy(data, &policy);
+ ret = __cpufreq_set_policy(policy, &new_policy);
unlock_policy_rwsem_write(cpu);
fail:
- cpufreq_cpu_put(data);
+ cpufreq_cpu_put(policy);
no_policy:
return ret;
}
@@ -1938,21 +1979,26 @@
{
unsigned int cpu = (unsigned long)hcpu;
struct device *dev;
+ bool frozen = false;
dev = get_cpu_device(cpu);
if (dev) {
- switch (action) {
+
+ if (action & CPU_TASKS_FROZEN)
+ frozen = true;
+
+ switch (action & ~CPU_TASKS_FROZEN) {
case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
- cpufreq_add_dev(dev, NULL);
+ __cpufreq_add_dev(dev, NULL, frozen);
+ cpufreq_update_policy(cpu);
break;
+
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
- __cpufreq_remove_dev(dev, NULL);
+ __cpufreq_remove_dev(dev, NULL, frozen);
break;
+
case CPU_DOWN_FAILED:
- case CPU_DOWN_FAILED_FROZEN:
- cpufreq_add_dev(dev, NULL);
+ __cpufreq_add_dev(dev, NULL, frozen);
break;
}
}
@@ -2059,9 +2105,13 @@
subsys_interface_unregister(&cpufreq_interface);
unregister_hotcpu_notifier(&cpufreq_cpu_notifier);
+ down_write(&cpufreq_rwsem);
write_lock_irqsave(&cpufreq_driver_lock, flags);
+
cpufreq_driver = NULL;
+
write_unlock_irqrestore(&cpufreq_driver_lock, flags);
+ up_write(&cpufreq_rwsem);
return 0;
}
@@ -2074,10 +2124,8 @@
if (cpufreq_disabled())
return -ENODEV;
- for_each_possible_cpu(cpu) {
- per_cpu(cpufreq_policy_cpu, cpu) = -1;
+ for_each_possible_cpu(cpu)
init_rwsem(&per_cpu(cpu_policy_rwsem, cpu));
- }
cpufreq_global_kobject = kobject_create();
BUG_ON(!cpufreq_global_kobject);
diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index f97cb3d..7f67a75 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -11,19 +11,7 @@
* published by the Free Software Foundation.
*/
-#include <linux/cpufreq.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/kernel_stat.h>
-#include <linux/kobject.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/notifier.h>
-#include <linux/percpu-defs.h>
#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/types.h>
-
#include "cpufreq_governor.h"
/* Conservative governor macros */
@@ -329,7 +317,7 @@
{
struct cs_dbs_tuners *tuners;
- tuners = kzalloc(sizeof(struct cs_dbs_tuners), GFP_KERNEL);
+ tuners = kzalloc(sizeof(*tuners), GFP_KERNEL);
if (!tuners) {
pr_err("%s: kzalloc failed\n", __func__);
return -ENOMEM;
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index e59afaa..8742736 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -16,15 +16,9 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <asm/cputime.h>
-#include <linux/cpufreq.h>
-#include <linux/cpumask.h>
#include <linux/export.h>
#include <linux/kernel_stat.h>
-#include <linux/mutex.h>
#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/workqueue.h>
#include "cpufreq_governor.h"
@@ -53,7 +47,7 @@
policy = cdbs->cur_policy;
- /* Get Absolute Load (in terms of freq for ondemand gov) */
+ /* Get Absolute Load */
for_each_cpu(j, policy->cpus) {
struct cpu_dbs_common_info *j_cdbs;
u64 cur_wall_time, cur_idle_time;
@@ -104,14 +98,6 @@
load = 100 * (wall_time - idle_time) / wall_time;
- if (dbs_data->cdata->governor == GOV_ONDEMAND) {
- int freq_avg = __cpufreq_driver_getavg(policy, j);
- if (freq_avg <= 0)
- freq_avg = policy->cur;
-
- load *= freq_avg;
- }
-
if (load > max_load)
max_load = load;
}
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index d5f12b4..a02d78b 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -18,10 +18,9 @@
#define _CPUFREQ_GOVERNOR_H
#include <linux/cpufreq.h>
-#include <linux/kobject.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
#include <linux/mutex.h>
-#include <linux/workqueue.h>
-#include <linux/sysfs.h>
/*
* The polling frequency depends on the capability of the processor. Default
@@ -169,7 +168,6 @@
unsigned int sampling_rate;
unsigned int sampling_down_factor;
unsigned int up_threshold;
- unsigned int adj_up_threshold;
unsigned int powersave_bias;
unsigned int io_is_busy;
};
@@ -223,7 +221,7 @@
void (*powersave_bias_init_cpu)(int cpu);
unsigned int (*powersave_bias_target)(struct cpufreq_policy *policy,
unsigned int freq_next, unsigned int relation);
- void (*freq_increase)(struct cpufreq_policy *p, unsigned int freq);
+ void (*freq_increase)(struct cpufreq_policy *policy, unsigned int freq);
};
struct cs_ops {
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index c087347..87f3305 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -12,28 +12,16 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/cpufreq.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/kernel_stat.h>
-#include <linux/kobject.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
+#include <linux/cpu.h>
#include <linux/percpu-defs.h>
#include <linux/slab.h>
-#include <linux/sysfs.h>
#include <linux/tick.h>
-#include <linux/types.h>
-#include <linux/cpu.h>
-
#include "cpufreq_governor.h"
/* On-demand governor macros */
-#define DEF_FREQUENCY_DOWN_DIFFERENTIAL (10)
#define DEF_FREQUENCY_UP_THRESHOLD (80)
#define DEF_SAMPLING_DOWN_FACTOR (1)
#define MAX_SAMPLING_DOWN_FACTOR (100000)
-#define MICRO_FREQUENCY_DOWN_DIFFERENTIAL (3)
#define MICRO_FREQUENCY_UP_THRESHOLD (95)
#define MICRO_FREQUENCY_MIN_SAMPLE_RATE (10000)
#define MIN_FREQUENCY_UP_THRESHOLD (11)
@@ -144,31 +132,27 @@
}
}
-static void dbs_freq_increase(struct cpufreq_policy *p, unsigned int freq)
+static void dbs_freq_increase(struct cpufreq_policy *policy, unsigned int freq)
{
- struct dbs_data *dbs_data = p->governor_data;
+ struct dbs_data *dbs_data = policy->governor_data;
struct od_dbs_tuners *od_tuners = dbs_data->tuners;
if (od_tuners->powersave_bias)
- freq = od_ops.powersave_bias_target(p, freq,
+ freq = od_ops.powersave_bias_target(policy, freq,
CPUFREQ_RELATION_H);
- else if (p->cur == p->max)
+ else if (policy->cur == policy->max)
return;
- __cpufreq_driver_target(p, freq, od_tuners->powersave_bias ?
+ __cpufreq_driver_target(policy, freq, od_tuners->powersave_bias ?
CPUFREQ_RELATION_L : CPUFREQ_RELATION_H);
}
/*
* Every sampling_rate, we check, if current idle time is less than 20%
- * (default), then we try to increase frequency. Every sampling_rate, we look
- * for the lowest frequency which can sustain the load while keeping idle time
- * over 30%. If such a frequency exist, we try to decrease to this frequency.
- *
- * Any frequency increase takes it to the maximum frequency. Frequency reduction
- * happens at minimum steps of 5% (default) of current frequency
+ * (default), then we try to increase frequency. Else, we adjust the frequency
+ * proportional to load.
*/
-static void od_check_cpu(int cpu, unsigned int load_freq)
+static void od_check_cpu(int cpu, unsigned int load)
{
struct od_cpu_dbs_info_s *dbs_info = &per_cpu(od_cpu_dbs_info, cpu);
struct cpufreq_policy *policy = dbs_info->cdbs.cur_policy;
@@ -178,29 +162,17 @@
dbs_info->freq_lo = 0;
/* Check for frequency increase */
- if (load_freq > od_tuners->up_threshold * policy->cur) {
+ if (load > od_tuners->up_threshold) {
/* If switching to max speed, apply sampling_down_factor */
if (policy->cur < policy->max)
dbs_info->rate_mult =
od_tuners->sampling_down_factor;
dbs_freq_increase(policy, policy->max);
return;
- }
-
- /* Check for frequency decrease */
- /* if we cannot reduce the frequency anymore, break out early */
- if (policy->cur == policy->min)
- return;
-
- /*
- * The optimal frequency is the frequency that is the lowest that can
- * support the current CPU usage without triggering the up policy. To be
- * safe, we focus 10 points under the threshold.
- */
- if (load_freq < od_tuners->adj_up_threshold
- * policy->cur) {
+ } else {
+ /* Calculate the next frequency proportional to load */
unsigned int freq_next;
- freq_next = load_freq / od_tuners->adj_up_threshold;
+ freq_next = load * policy->cpuinfo.max_freq / 100;
/* No longer fully busy, reset rate_mult */
dbs_info->rate_mult = 1;
@@ -374,9 +346,6 @@
input < MIN_FREQUENCY_UP_THRESHOLD) {
return -EINVAL;
}
- /* Calculate the new adj_up_threshold */
- od_tuners->adj_up_threshold += input;
- od_tuners->adj_up_threshold -= od_tuners->up_threshold;
od_tuners->up_threshold = input;
return count;
@@ -513,7 +482,7 @@
u64 idle_time;
int cpu;
- tuners = kzalloc(sizeof(struct od_dbs_tuners), GFP_KERNEL);
+ tuners = kzalloc(sizeof(*tuners), GFP_KERNEL);
if (!tuners) {
pr_err("%s: kzalloc failed\n", __func__);
return -ENOMEM;
@@ -525,8 +494,6 @@
if (idle_time != -1ULL) {
/* Idle micro accounting is supported. Use finer thresholds */
tuners->up_threshold = MICRO_FREQUENCY_UP_THRESHOLD;
- tuners->adj_up_threshold = MICRO_FREQUENCY_UP_THRESHOLD -
- MICRO_FREQUENCY_DOWN_DIFFERENTIAL;
/*
* In nohz/micro accounting case we set the minimum frequency
* not depending on HZ, but fixed (very low). The deferred
@@ -535,8 +502,6 @@
dbs_data->min_sampling_rate = MICRO_FREQUENCY_MIN_SAMPLE_RATE;
} else {
tuners->up_threshold = DEF_FREQUENCY_UP_THRESHOLD;
- tuners->adj_up_threshold = DEF_FREQUENCY_UP_THRESHOLD -
- DEF_FREQUENCY_DOWN_DIFFERENTIAL;
/* For correct statistics, we need 10 ticks for each measure */
dbs_data->min_sampling_rate = MIN_SAMPLING_RATE_RATIO *
diff --git a/drivers/cpufreq/cpufreq_performance.c b/drivers/cpufreq/cpufreq_performance.c
index 9fef7d6..cf117de 100644
--- a/drivers/cpufreq/cpufreq_performance.c
+++ b/drivers/cpufreq/cpufreq_performance.c
@@ -12,10 +12,9 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/cpufreq.h>
#include <linux/init.h>
+#include <linux/module.h>
static int cpufreq_governor_performance(struct cpufreq_policy *policy,
unsigned int event)
diff --git a/drivers/cpufreq/cpufreq_powersave.c b/drivers/cpufreq/cpufreq_powersave.c
index 32109a1..e3b874c 100644
--- a/drivers/cpufreq/cpufreq_powersave.c
+++ b/drivers/cpufreq/cpufreq_powersave.c
@@ -12,10 +12,9 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/kernel.h>
-#include <linux/module.h>
#include <linux/cpufreq.h>
#include <linux/init.h>
+#include <linux/module.h>
static int cpufreq_governor_powersave(struct cpufreq_policy *policy,
unsigned int event)
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index d37568c..04452f0 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -9,17 +9,10 @@
* published by the Free Software Foundation.
*/
-#include <linux/kernel.h>
-#include <linux/slab.h>
#include <linux/cpu.h>
-#include <linux/sysfs.h>
#include <linux/cpufreq.h>
#include <linux/module.h>
-#include <linux/jiffies.h>
-#include <linux/percpu.h>
-#include <linux/kobject.h>
-#include <linux/spinlock.h>
-#include <linux/notifier.h>
+#include <linux/slab.h>
#include <asm/cputime.h>
static spinlock_t cpufreq_stats_lock;
@@ -200,22 +193,22 @@
{
unsigned int i, j, count = 0, ret = 0;
struct cpufreq_stats *stat;
- struct cpufreq_policy *data;
+ struct cpufreq_policy *current_policy;
unsigned int alloc_size;
unsigned int cpu = policy->cpu;
if (per_cpu(cpufreq_stats_table, cpu))
return -EBUSY;
- stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL);
+ stat = kzalloc(sizeof(*stat), GFP_KERNEL);
if ((stat) == NULL)
return -ENOMEM;
- data = cpufreq_cpu_get(cpu);
- if (data == NULL) {
+ current_policy = cpufreq_cpu_get(cpu);
+ if (current_policy == NULL) {
ret = -EINVAL;
goto error_get_fail;
}
- ret = sysfs_create_group(&data->kobj, &stats_attr_group);
+ ret = sysfs_create_group(¤t_policy->kobj, &stats_attr_group);
if (ret)
goto error_out;
@@ -258,10 +251,10 @@
stat->last_time = get_jiffies_64();
stat->last_index = freq_table_get_index(stat, policy->cur);
spin_unlock(&cpufreq_stats_lock);
- cpufreq_cpu_put(data);
+ cpufreq_cpu_put(current_policy);
return 0;
error_out:
- cpufreq_cpu_put(data);
+ cpufreq_cpu_put(current_policy);
error_get_fail:
kfree(stat);
per_cpu(cpufreq_stats_table, cpu) = NULL;
@@ -348,16 +341,10 @@
unsigned int cpu = (unsigned long)hcpu;
switch (action) {
- case CPU_ONLINE:
- case CPU_ONLINE_FROZEN:
- cpufreq_update_policy(cpu);
- break;
case CPU_DOWN_PREPARE:
- case CPU_DOWN_PREPARE_FROZEN:
cpufreq_stats_free_sysfs(cpu);
break;
case CPU_DEAD:
- case CPU_DEAD_FROZEN:
cpufreq_stats_free_table(cpu);
break;
}
@@ -390,8 +377,6 @@
return ret;
register_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
- for_each_online_cpu(cpu)
- cpufreq_update_policy(cpu);
ret = cpufreq_register_notifier(¬ifier_trans_block,
CPUFREQ_TRANSITION_NOTIFIER);
diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index ee142c4..cb8276d 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -111,7 +111,6 @@
.init = cris_freq_cpu_init,
.exit = cris_freq_cpu_exit,
.name = "cris_freq",
- .owner = THIS_MODULE,
.attr = cris_freq_attr,
};
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index 1295223..72328f7 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -108,7 +108,6 @@
.init = cris_freq_cpu_init,
.exit = cris_freq_cpu_exit,
.name = "cris_freq",
- .owner = THIS_MODULE,
.attr = cris_freq_attr,
};
diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index a60efae..09f64cc 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -54,7 +54,7 @@
/* Minimum necessary to get acpi_processor_get_bios_limit() working */
static int eps_acpi_init(void)
{
- eps_acpi_cpu_perf = kzalloc(sizeof(struct acpi_processor_performance),
+ eps_acpi_cpu_perf = kzalloc(sizeof(*eps_acpi_cpu_perf),
GFP_KERNEL);
if (!eps_acpi_cpu_perf)
return -ENOMEM;
@@ -366,7 +366,7 @@
states = 2;
/* Allocate private data and frequency table for current cpu */
- centaur = kzalloc(sizeof(struct eps_cpu_data)
+ centaur = kzalloc(sizeof(*centaur)
+ (states + 1) * sizeof(struct cpufreq_frequency_table),
GFP_KERNEL);
if (!centaur)
@@ -436,7 +436,6 @@
.exit = eps_cpu_exit,
.get = eps_get,
.name = "e_powersaver",
- .owner = THIS_MODULE,
.attr = eps_attr,
};
diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index 658d860..823a400 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -274,7 +274,6 @@
.init = elanfreq_cpu_init,
.exit = elanfreq_cpu_exit,
.name = "elanfreq",
- .owner = THIS_MODULE,
.attr = elanfreq_attr,
};
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 0d32f02..0fac344 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -289,7 +289,7 @@
{
int ret = -EINVAL;
- exynos_info = kzalloc(sizeof(struct exynos_dvfs_info), GFP_KERNEL);
+ exynos_info = kzalloc(sizeof(*exynos_info), GFP_KERNEL);
if (!exynos_info)
return -ENOMEM;
@@ -332,7 +332,6 @@
regulator_put(arm_regulator);
err_vdd_arm:
kfree(exynos_info);
- pr_debug("%s: failed initialization\n", __func__);
return -EINVAL;
}
late_initcall(exynos_cpufreq_init);
diff --git a/drivers/cpufreq/exynos-cpufreq.h b/drivers/cpufreq/exynos-cpufreq.h
index 92b852e..7f25cee 100644
--- a/drivers/cpufreq/exynos-cpufreq.h
+++ b/drivers/cpufreq/exynos-cpufreq.h
@@ -43,6 +43,27 @@
bool (*need_apll_change)(unsigned int, unsigned int);
};
+#ifdef CONFIG_ARM_EXYNOS4210_CPUFREQ
extern int exynos4210_cpufreq_init(struct exynos_dvfs_info *);
+#else
+static inline int exynos4210_cpufreq_init(struct exynos_dvfs_info *info)
+{
+ return -EOPNOTSUPP;
+}
+#endif
+#ifdef CONFIG_ARM_EXYNOS4X12_CPUFREQ
extern int exynos4x12_cpufreq_init(struct exynos_dvfs_info *);
+#else
+static inline int exynos4x12_cpufreq_init(struct exynos_dvfs_info *info)
+{
+ return -EOPNOTSUPP;
+}
+#endif
+#ifdef CONFIG_ARM_EXYNOS5250_CPUFREQ
extern int exynos5250_cpufreq_init(struct exynos_dvfs_info *);
+#else
+static inline int exynos5250_cpufreq_init(struct exynos_dvfs_info *info)
+{
+ return -EOPNOTSUPP;
+}
+#endif
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index 0c74018..d514c15 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -238,6 +238,9 @@
freqs.old = dvfs_info->cur_frequency;
freqs.new = freq_table[index].frequency;
+ if (freqs.old == freqs.new)
+ goto out;
+
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
/* Set the target frequency in all C0_3_PSTATE register */
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index f0d8741..f111454a 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -11,10 +11,8 @@
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
#include <linux/cpufreq.h>
+#include <linux/module.h>
/*********************************************************************
* FREQUENCY TABLE HELPERS *
diff --git a/drivers/cpufreq/gx-suspmod.c b/drivers/cpufreq/gx-suspmod.c
index 3dfc99b..70442c7 100644
--- a/drivers/cpufreq/gx-suspmod.c
+++ b/drivers/cpufreq/gx-suspmod.c
@@ -183,7 +183,7 @@
* gx_detect_chipset:
*
**/
-static __init struct pci_dev *gx_detect_chipset(void)
+static struct pci_dev * __init gx_detect_chipset(void)
{
struct pci_dev *gx_pci = NULL;
@@ -446,7 +446,6 @@
.target = cpufreq_gx_target,
.init = cpufreq_gx_cpu_init,
.name = "gx-suspmod",
- .owner = THIS_MODULE,
};
static int __init cpufreq_gx_init(void)
@@ -466,7 +465,7 @@
pr_debug("geode suspend modulation available.\n");
- params = kzalloc(sizeof(struct gxfreq_params), GFP_KERNEL);
+ params = kzalloc(sizeof(*params), GFP_KERNEL);
if (params == NULL)
return -ENOMEM;
diff --git a/drivers/cpufreq/highbank-cpufreq.c b/drivers/cpufreq/highbank-cpufreq.c
index b61b5a3..794123f 100644
--- a/drivers/cpufreq/highbank-cpufreq.c
+++ b/drivers/cpufreq/highbank-cpufreq.c
@@ -69,24 +69,18 @@
if (!of_machine_is_compatible("calxeda,highbank"))
return -ENODEV;
- for_each_child_of_node(of_find_node_by_path("/cpus"), np)
- if (of_get_property(np, "operating-points", NULL))
- break;
+ cpu_dev = get_cpu_device(0);
+ if (!cpu_dev) {
+ pr_err("failed to get highbank cpufreq device\n");
+ return -ENODEV;
+ }
+ np = of_node_get(cpu_dev->of_node);
if (!np) {
pr_err("failed to find highbank cpufreq node\n");
return -ENOENT;
}
- cpu_dev = get_cpu_device(0);
- if (!cpu_dev) {
- pr_err("failed to get highbank cpufreq device\n");
- ret = -ENODEV;
- goto out_put_node;
- }
-
- cpu_dev->of_node = np;
-
cpu_clk = clk_get(cpu_dev, NULL);
if (IS_ERR(cpu_clk)) {
ret = PTR_ERR(cpu_clk);
diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index 573c14e..3e14f03 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -274,7 +274,7 @@
pr_debug("acpi_cpufreq_cpu_init\n");
- data = kzalloc(sizeof(struct cpufreq_acpi_io), GFP_KERNEL);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data)
return (-ENOMEM);
@@ -304,7 +304,7 @@
}
/* alloc freq_table */
- data->freq_table = kmalloc(sizeof(struct cpufreq_frequency_table) *
+ data->freq_table = kmalloc(sizeof(*data->freq_table) *
(data->acpi_data.state_count + 1),
GFP_KERNEL);
if (!data->freq_table) {
@@ -409,7 +409,6 @@
.init = acpi_cpufreq_cpu_init,
.exit = acpi_cpufreq_cpu_exit,
.name = "acpi-cpufreq",
- .owner = THIS_MODULE,
.attr = acpi_cpufreq_attr,
};
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index e37cdae..b16632b 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -221,14 +221,12 @@
cpu_dev = &pdev->dev;
- np = of_find_node_by_path("/cpus/cpu@0");
+ np = of_node_get(cpu_dev->of_node);
if (!np) {
dev_err(cpu_dev, "failed to find cpu0 node\n");
return -ENOENT;
}
- cpu_dev->of_node = np;
-
arm_clk = devm_clk_get(cpu_dev, "arm");
pll1_sys_clk = devm_clk_get(cpu_dev, "pll1_sys");
pll1_sw_clk = devm_clk_get(cpu_dev, "pll1_sw");
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 7cde885..6efd96c 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -665,7 +665,6 @@
.init = intel_pstate_cpu_init,
.exit = intel_pstate_cpu_exit,
.name = "intel_pstate",
- .owner = THIS_MODULE,
};
static int __initdata no_load;
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index c233ea6..ba10658 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -14,7 +14,7 @@
#include <linux/clk.h>
#include <linux/clk-provider.h>
#include <linux/cpufreq.h>
-#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <asm/proc-fns.h>
@@ -158,7 +158,6 @@
.init = kirkwood_cpufreq_cpu_init,
.exit = kirkwood_cpufreq_cpu_exit,
.name = "kirkwood-cpufreq",
- .owner = THIS_MODULE,
.attr = kirkwood_cpufreq_attr,
};
@@ -175,9 +174,11 @@
if (IS_ERR(priv.base))
return PTR_ERR(priv.base);
- np = of_find_node_by_path("/cpus/cpu@0");
- if (!np)
+ np = of_cpu_device_node_get(0);
+ if (!np) {
+ dev_err(&pdev->dev, "failed to get cpu device node\n");
return -ENODEV;
+ }
priv.cpu_clk = of_clk_get_by_name(np, "cpu_clk");
if (IS_ERR(priv.cpu_clk)) {
diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 8c49261..4ada1cc 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -948,7 +948,6 @@
.init = longhaul_cpu_init,
.exit = longhaul_cpu_exit,
.name = "longhaul",
- .owner = THIS_MODULE,
.attr = longhaul_attr,
};
diff --git a/drivers/cpufreq/longrun.c b/drivers/cpufreq/longrun.c
index 0fe041d..5aa0316 100644
--- a/drivers/cpufreq/longrun.c
+++ b/drivers/cpufreq/longrun.c
@@ -286,7 +286,6 @@
.get = longrun_get,
.init = longrun_cpu_init,
.name = "longrun",
- .owner = THIS_MODULE,
};
static const struct x86_cpu_id longrun_ids[] = {
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 9536852c..7bc3c44 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -158,7 +158,6 @@
};
static struct cpufreq_driver loongson2_cpufreq_driver = {
- .owner = THIS_MODULE,
.name = "loongson2",
.init = loongson2_cpufreq_cpu_init,
.verify = loongson2_cpufreq_verify,
diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index cdd6291..6168d77 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -24,7 +24,7 @@
#include <linux/completion.h>
#include <linux/mutex.h>
#include <linux/time.h>
-#include <linux/of.h>
+#include <linux/of_device.h>
#define DBG(fmt...) pr_debug(fmt)
@@ -190,7 +190,6 @@
static struct cpufreq_driver maple_cpufreq_driver = {
.name = "maple",
- .owner = THIS_MODULE,
.flags = CPUFREQ_CONST_LOOPS,
.init = maple_cpufreq_cpu_init,
.verify = maple_cpufreq_verify,
@@ -201,7 +200,6 @@
static int __init maple_cpufreq_init(void)
{
- struct device_node *cpus;
struct device_node *cpunode;
unsigned int psize;
unsigned long max_freq;
@@ -217,24 +215,11 @@
!of_machine_is_compatible("Momentum,Apache"))
return 0;
- cpus = of_find_node_by_path("/cpus");
- if (cpus == NULL) {
- DBG("No /cpus node !\n");
- return -ENODEV;
- }
-
/* Get first CPU node */
- for (cpunode = NULL;
- (cpunode = of_get_next_child(cpus, cpunode)) != NULL;) {
- const u32 *reg = of_get_property(cpunode, "reg", NULL);
- if (reg == NULL || (*reg) != 0)
- continue;
- if (!strcmp(cpunode->type, "cpu"))
- break;
- }
+ cpunode = of_cpu_device_node_get(0);
if (cpunode == NULL) {
printk(KERN_ERR "cpufreq: Can't find any CPU 0 node\n");
- goto bail_cpus;
+ goto bail_noprops;
}
/* Check 970FX for now */
@@ -290,14 +275,11 @@
rc = cpufreq_register_driver(&maple_cpufreq_driver);
of_node_put(cpunode);
- of_node_put(cpus);
return rc;
bail_noprops:
of_node_put(cpunode);
-bail_cpus:
- of_node_put(cpus);
return rc;
}
diff --git a/drivers/cpufreq/mperf.c b/drivers/cpufreq/mperf.c
deleted file mode 100644
index 911e193..0000000
--- a/drivers/cpufreq/mperf.c
+++ /dev/null
@@ -1,51 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/smp.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/cpufreq.h>
-#include <linux/slab.h>
-
-#include "mperf.h"
-
-static DEFINE_PER_CPU(struct aperfmperf, acfreq_old_perf);
-
-/* Called via smp_call_function_single(), on the target CPU */
-static void read_measured_perf_ctrs(void *_cur)
-{
- struct aperfmperf *am = _cur;
-
- get_aperfmperf(am);
-}
-
-/*
- * Return the measured active (C0) frequency on this CPU since last call
- * to this function.
- * Input: cpu number
- * Return: Average CPU frequency in terms of max frequency (zero on error)
- *
- * We use IA32_MPERF and IA32_APERF MSRs to get the measured performance
- * over a period of time, while CPU is in C0 state.
- * IA32_MPERF counts at the rate of max advertised frequency
- * IA32_APERF counts at the rate of actual CPU frequency
- * Only IA32_APERF/IA32_MPERF ratio is architecturally defined and
- * no meaning should be associated with absolute values of these MSRs.
- */
-unsigned int cpufreq_get_measured_perf(struct cpufreq_policy *policy,
- unsigned int cpu)
-{
- struct aperfmperf perf;
- unsigned long ratio;
- unsigned int retval;
-
- if (smp_call_function_single(cpu, read_measured_perf_ctrs, &perf, 1))
- return 0;
-
- ratio = calc_aperfmperf_ratio(&per_cpu(acfreq_old_perf, cpu), &perf);
- per_cpu(acfreq_old_perf, cpu) = perf;
-
- retval = (policy->cpuinfo.max_freq * ratio) >> APERFMPERF_SHIFT;
-
- return retval;
-}
-EXPORT_SYMBOL_GPL(cpufreq_get_measured_perf);
-MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/mperf.h b/drivers/cpufreq/mperf.h
deleted file mode 100644
index 5dbf295..0000000
--- a/drivers/cpufreq/mperf.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * (c) 2010 Advanced Micro Devices, Inc.
- * Your use of this code is subject to the terms and conditions of the
- * GNU general public license version 2. See "COPYING" or
- * http://www.gnu.org/licenses/gpl.html
- */
-
-unsigned int cpufreq_get_measured_perf(struct cpufreq_policy *policy,
- unsigned int cpu);
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 9ee7817..2f0a2a6 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -279,7 +279,6 @@
.exit = cpufreq_p4_cpu_exit,
.get = cpufreq_p4_get,
.name = "p4-clockmod",
- .owner = THIS_MODULE,
.attr = p4clockmod_attr,
};
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index b704da4..534e43a 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -297,7 +297,6 @@
static struct cpufreq_driver pas_cpufreq_driver = {
.name = "pas-cpufreq",
- .owner = THIS_MODULE,
.flags = CPUFREQ_CONST_LOOPS,
.init = pas_cpufreq_cpu_init,
.exit = pas_cpufreq_cpu_exit,
diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index 1581fcc..d81c4e5 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -587,7 +587,6 @@
.init = pcc_cpufreq_cpu_init,
.exit = pcc_cpufreq_cpu_exit,
.name = "pcc-cpufreq",
- .owner = THIS_MODULE,
};
static int __init pcc_cpufreq_init(void)
diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index 3104fad..a096cd3 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -25,6 +25,7 @@
#include <linux/init.h>
#include <linux/device.h>
#include <linux/hardirq.h>
+#include <linux/of_device.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/irq.h>
@@ -477,7 +478,6 @@
.flags = CPUFREQ_PM_NO_WARN,
.attr = pmac_cpu_freqs_attr,
.name = "powermac",
- .owner = THIS_MODULE,
};
@@ -649,8 +649,8 @@
if (strstr(cmd_line, "nocpufreq"))
return 0;
- /* Assume only one CPU */
- cpunode = of_find_node_by_type(NULL, "cpu");
+ /* Get first CPU node */
+ cpunode = of_cpu_device_node_get(0);
if (!cpunode)
goto out;
diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 7ba4234..3a51ad7 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -22,6 +22,7 @@
#include <linux/init.h>
#include <linux/completion.h>
#include <linux/mutex.h>
+#include <linux/of_device.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/irq.h>
@@ -371,7 +372,6 @@
static struct cpufreq_driver g5_cpufreq_driver = {
.name = "powermac",
- .owner = THIS_MODULE,
.flags = CPUFREQ_CONST_LOOPS,
.init = g5_cpufreq_cpu_init,
.verify = g5_cpufreq_verify,
@@ -383,9 +383,8 @@
#ifdef CONFIG_PMAC_SMU
-static int __init g5_neo2_cpufreq_init(struct device_node *cpus)
+static int __init g5_neo2_cpufreq_init(struct device_node *cpunode)
{
- struct device_node *cpunode;
unsigned int psize, ssize;
unsigned long max_freq;
char *freq_method, *volt_method;
@@ -405,20 +404,6 @@
else
return -ENODEV;
- /* Get first CPU node */
- for (cpunode = NULL;
- (cpunode = of_get_next_child(cpus, cpunode)) != NULL;) {
- const u32 *reg = of_get_property(cpunode, "reg", NULL);
- if (reg == NULL || (*reg) != 0)
- continue;
- if (!strcmp(cpunode->type, "cpu"))
- break;
- }
- if (cpunode == NULL) {
- printk(KERN_ERR "cpufreq: Can't find any CPU 0 node\n");
- return -ENODEV;
- }
-
/* Check 970FX for now */
valp = of_get_property(cpunode, "cpu-version", NULL);
if (!valp) {
@@ -447,9 +432,8 @@
if (!shdr)
goto bail_noprops;
g5_fvt_table = (struct smu_sdbp_fvt *)&shdr[1];
- ssize = (shdr->len * sizeof(u32)) -
- sizeof(struct smu_sdbp_header);
- g5_fvt_count = ssize / sizeof(struct smu_sdbp_fvt);
+ ssize = (shdr->len * sizeof(u32)) - sizeof(*shdr);
+ g5_fvt_count = ssize / sizeof(*g5_fvt_table);
g5_fvt_cur = 0;
/* Sanity checking */
@@ -537,9 +521,9 @@
#endif /* CONFIG_PMAC_SMU */
-static int __init g5_pm72_cpufreq_init(struct device_node *cpus)
+static int __init g5_pm72_cpufreq_init(struct device_node *cpunode)
{
- struct device_node *cpuid = NULL, *hwclock = NULL, *cpunode = NULL;
+ struct device_node *cpuid = NULL, *hwclock = NULL;
const u8 *eeprom = NULL;
const u32 *valp;
u64 max_freq, min_freq, ih, il;
@@ -548,17 +532,6 @@
DBG("cpufreq: Initializing for PowerMac7,2, PowerMac7,3 and"
" RackMac3,1...\n");
- /* Get first CPU node */
- for (cpunode = NULL;
- (cpunode = of_get_next_child(cpus, cpunode)) != NULL;) {
- if (!strcmp(cpunode->type, "cpu"))
- break;
- }
- if (cpunode == NULL) {
- printk(KERN_ERR "cpufreq: Can't find any CPU node\n");
- return -ENODEV;
- }
-
/* Lookup the cpuid eeprom node */
cpuid = of_find_node_by_path("/u3@0,f8000000/i2c@f8001000/cpuid@a0");
if (cpuid != NULL)
@@ -718,25 +691,25 @@
static int __init g5_cpufreq_init(void)
{
- struct device_node *cpus;
+ struct device_node *cpunode;
int rc = 0;
- cpus = of_find_node_by_path("/cpus");
- if (cpus == NULL) {
- DBG("No /cpus node !\n");
+ /* Get first CPU node */
+ cpunode = of_cpu_device_node_get(0);
+ if (cpunode == NULL) {
+ pr_err("cpufreq: Can't find any CPU node\n");
return -ENODEV;
}
if (of_machine_is_compatible("PowerMac7,2") ||
of_machine_is_compatible("PowerMac7,3") ||
of_machine_is_compatible("RackMac3,1"))
- rc = g5_pm72_cpufreq_init(cpus);
+ rc = g5_pm72_cpufreq_init(cpunode);
#ifdef CONFIG_PMAC_SMU
else
- rc = g5_neo2_cpufreq_init(cpus);
+ rc = g5_neo2_cpufreq_init(cpunode);
#endif /* CONFIG_PMAC_SMU */
- of_node_put(cpus);
return rc;
}
diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index ea8e103..85f1c8c 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -207,7 +207,6 @@
.exit = powernow_k6_cpu_exit,
.get = powernow_k6_get,
.name = "powernow-k6",
- .owner = THIS_MODULE,
.attr = powernow_k6_attr,
};
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 9558708..14ce480 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -177,7 +177,7 @@
unsigned int speed;
u8 fid, vid;
- powernow_table = kzalloc((sizeof(struct cpufreq_frequency_table) *
+ powernow_table = kzalloc((sizeof(*powernow_table) *
(number_scales + 1)), GFP_KERNEL);
if (!powernow_table)
return -ENOMEM;
@@ -309,8 +309,7 @@
goto err0;
}
- acpi_processor_perf = kzalloc(sizeof(struct acpi_processor_performance),
- GFP_KERNEL);
+ acpi_processor_perf = kzalloc(sizeof(*acpi_processor_perf), GFP_KERNEL);
if (!acpi_processor_perf) {
retval = -ENOMEM;
goto err0;
@@ -346,7 +345,7 @@
goto err2;
}
- powernow_table = kzalloc((sizeof(struct cpufreq_frequency_table) *
+ powernow_table = kzalloc((sizeof(*powernow_table) *
(number_scales + 1)), GFP_KERNEL);
if (!powernow_table) {
retval = -ENOMEM;
@@ -497,7 +496,7 @@
"relevant to this CPU).\n",
psb->numpst);
- p += sizeof(struct psb_s);
+ p += sizeof(*psb);
pst = (struct pst_s *) p;
@@ -510,12 +509,12 @@
(maxfid == pst->maxfid) &&
(startvid == pst->startvid)) {
print_pst_entry(pst, j);
- p = (char *)pst + sizeof(struct pst_s);
+ p = (char *)pst + sizeof(*pst);
ret = get_ranges(p);
return ret;
} else {
unsigned int k;
- p = (char *)pst + sizeof(struct pst_s);
+ p = (char *)pst + sizeof(*pst);
for (k = 0; k < number_scales; k++)
p += 2;
}
@@ -717,7 +716,6 @@
.init = powernow_cpu_init,
.exit = powernow_cpu_exit,
.name = "powernow-k7",
- .owner = THIS_MODULE,
.attr = powernow_table_attr,
};
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index c39d189..2344a9e 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -623,7 +623,7 @@
if (check_pst_table(data, pst, maxvid))
return -EINVAL;
- powernow_table = kmalloc((sizeof(struct cpufreq_frequency_table)
+ powernow_table = kmalloc((sizeof(*powernow_table)
* (data->numps + 1)), GFP_KERNEL);
if (!powernow_table) {
printk(KERN_ERR PFX "powernow_table memory alloc failure\n");
@@ -793,7 +793,7 @@
}
/* fill in data->powernow_table */
- powernow_table = kmalloc((sizeof(struct cpufreq_frequency_table)
+ powernow_table = kmalloc((sizeof(*powernow_table)
* (data->acpi_data.state_count + 1)), GFP_KERNEL);
if (!powernow_table) {
pr_debug("powernow_table memory alloc failure\n");
@@ -1106,7 +1106,7 @@
if (rc)
return -ENODEV;
- data = kzalloc(sizeof(struct powernow_k8_data), GFP_KERNEL);
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data) {
printk(KERN_ERR PFX "unable to alloc powernow_k8_data");
return -ENOMEM;
@@ -1240,7 +1240,6 @@
.exit = powernowk8_cpu_exit,
.get = powernowk8_get,
.name = "powernow-k8",
- .owner = THIS_MODULE,
.attr = powernow_k8_attr,
};
diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index 3cae452..60e81d5 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -300,7 +300,6 @@
static struct cpufreq_driver ppc_corenet_cpufreq_driver = {
.name = "ppc_cpufreq",
- .owner = THIS_MODULE,
.flags = CPUFREQ_CONST_LOOPS,
.init = corenet_cpufreq_cpu_init,
.exit = __exit_p(corenet_cpufreq_cpu_exit),
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index 5936f8d..2e448f0 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -181,7 +181,6 @@
.init = cbe_cpufreq_cpu_init,
.exit = cbe_cpufreq_cpu_exit,
.name = "cbe-cpufreq",
- .owner = THIS_MODULE,
.flags = CPUFREQ_CONST_LOOPS,
};
diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index fb3981a..8749eaf 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -191,7 +191,7 @@
return ret;
}
-static __init void pxa_cpufreq_init_voltages(void)
+static void __init pxa_cpufreq_init_voltages(void)
{
vcc_core = regulator_get(NULL, "vcc_core");
if (IS_ERR(vcc_core)) {
@@ -207,7 +207,7 @@
return 0;
}
-static __init void pxa_cpufreq_init_voltages(void) { }
+static void __init pxa_cpufreq_init_voltages(void) { }
#endif
static void find_freq_tables(struct cpufreq_frequency_table **freq_table,
diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index 9c92ef0..d26306f 100644
--- a/drivers/cpufreq/pxa3xx-cpufreq.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -213,10 +213,12 @@
policy->cur = policy->min = policy->max;
if (cpu_is_pxa300() || cpu_is_pxa310())
- ret = setup_freqs_table(policy, ARRAY_AND_SIZE(pxa300_freqs));
+ ret = setup_freqs_table(policy, pxa300_freqs,
+ ARRAY_SIZE(pxa300_freqs));
if (cpu_is_pxa320())
- ret = setup_freqs_table(policy, ARRAY_AND_SIZE(pxa320_freqs));
+ ret = setup_freqs_table(policy, pxa320_freqs,
+ ARRAY_SIZE(pxa320_freqs));
if (ret) {
pr_err("failed to setup frequency table\n");
diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index ce5b9fc..22dcb81 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -524,7 +524,6 @@
};
static struct cpufreq_driver s3c2416_cpufreq_driver = {
- .owner = THIS_MODULE,
.flags = 0,
.verify = s3c2416_cpufreq_verify_speed,
.target = s3c2416_cpufreq_set_target,
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index 87781eb..b0f343f 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -392,7 +392,7 @@
return 0;
}
-static __init int s3c_cpufreq_initclks(void)
+static int __init s3c_cpufreq_initclks(void)
{
_clk_mpll = s3c_cpufreq_clk_get(NULL, "mpll");
_clk_xtal = s3c_cpufreq_clk_get(NULL, "xtal");
@@ -522,7 +522,7 @@
/* Copy the board information so that each board can make this
* initdata. */
- ours = kzalloc(sizeof(struct s3c_cpufreq_board), GFP_KERNEL);
+ ours = kzalloc(sizeof(*ours), GFP_KERNEL);
if (ours == NULL) {
printk(KERN_ERR "%s: no memory\n", __func__);
return -ENOMEM;
@@ -615,7 +615,7 @@
size = cpu_cur.info->calc_freqtable(&cpu_cur, NULL, 0);
size++;
- ftab = kmalloc(sizeof(struct cpufreq_frequency_table) * size, GFP_KERNEL);
+ ftab = kmalloc(sizeof(*ftab) * size, GFP_KERNEL);
if (!ftab) {
printk(KERN_ERR "%s: no memory for tables\n", __func__);
return -ENOMEM;
@@ -691,7 +691,7 @@
struct cpufreq_frequency_table *vals;
unsigned int size;
- size = sizeof(struct cpufreq_frequency_table) * (plls_no + 1);
+ size = sizeof(*vals) * (plls_no + 1);
vals = kmalloc(size, GFP_KERNEL);
if (vals) {
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 13bb4ba..8a72b0c 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -263,7 +263,6 @@
}
static struct cpufreq_driver s3c64xx_cpufreq_driver = {
- .owner = THIS_MODULE,
.flags = 0,
.verify = s3c64xx_cpufreq_verify_speed,
.target = s3c64xx_cpufreq_set_target,
diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index 77a2109..d6f6c6f 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -147,7 +147,6 @@
.init = sc520_freq_cpu_init,
.exit = sc520_freq_cpu_exit,
.name = "sc520_freq",
- .owner = THIS_MODULE,
.attr = sc520_freq_attr,
};
diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c
index 73adb64..ffc6d24 100644
--- a/drivers/cpufreq/sh-cpufreq.c
+++ b/drivers/cpufreq/sh-cpufreq.c
@@ -160,7 +160,6 @@
};
static struct cpufreq_driver sh_cpufreq_driver = {
- .owner = THIS_MODULE,
.name = "sh",
.get = sh_cpufreq_get,
.target = sh_cpufreq_target,
diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index 93061a40..cf5bc2c 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -351,12 +351,11 @@
struct cpufreq_driver *driver;
ret = -ENOMEM;
- driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
+ driver = kzalloc(sizeof(*driver), GFP_KERNEL);
if (!driver)
goto err_out;
- us2e_freq_table = kzalloc(
- (NR_CPUS * sizeof(struct us2e_freq_percpu_info)),
+ us2e_freq_table = kzalloc((NR_CPUS * sizeof(*us2e_freq_table)),
GFP_KERNEL);
if (!us2e_freq_table)
goto err_out;
@@ -366,7 +365,6 @@
driver->target = us2e_freq_target;
driver->get = us2e_freq_get;
driver->exit = us2e_freq_cpu_exit;
- driver->owner = THIS_MODULE,
strcpy(driver->name, "UltraSPARC-IIe");
cpufreq_us2e_driver = driver;
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index 880ee29..ac76b48 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -212,12 +212,11 @@
struct cpufreq_driver *driver;
ret = -ENOMEM;
- driver = kzalloc(sizeof(struct cpufreq_driver), GFP_KERNEL);
+ driver = kzalloc(sizeof(*driver), GFP_KERNEL);
if (!driver)
goto err_out;
- us3_freq_table = kzalloc(
- (NR_CPUS * sizeof(struct us3_freq_percpu_info)),
+ us3_freq_table = kzalloc((NR_CPUS * sizeof(*us3_freq_table)),
GFP_KERNEL);
if (!us3_freq_table)
goto err_out;
@@ -227,7 +226,6 @@
driver->target = us3_freq_target;
driver->get = us3_freq_get;
driver->exit = us3_freq_cpu_exit;
- driver->owner = THIS_MODULE,
strcpy(driver->name, "UltraSPARC-III");
cpufreq_us3_driver = driver;
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index c3efa7f..19e364fa 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -18,7 +18,7 @@
#include <linux/err.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/of.h>
+#include <linux/of_device.h>
#include <linux/slab.h>
#include <linux/types.h>
@@ -223,7 +223,7 @@
const __be32 *val;
int cnt, i, ret;
- np = of_find_node_by_path("/cpus/cpu@0");
+ np = of_cpu_device_node_get(0);
if (!np) {
pr_err("No cpu node found");
return -ENODEV;
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 0915e71..f897d51 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -575,7 +575,6 @@
.target = centrino_target,
.get = get_cur_freq,
.attr = centrino_attr,
- .owner = THIS_MODULE,
};
/*
diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c
index e2e5aa9..5355abb 100644
--- a/drivers/cpufreq/speedstep-ich.c
+++ b/drivers/cpufreq/speedstep-ich.c
@@ -378,7 +378,6 @@
.init = speedstep_cpu_init,
.exit = speedstep_cpu_exit,
.get = speedstep_get,
- .owner = THIS_MODULE,
.attr = speedstep_attr,
};
diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c
index f5a6b70..abfba4f 100644
--- a/drivers/cpufreq/speedstep-smi.c
+++ b/drivers/cpufreq/speedstep-smi.c
@@ -375,7 +375,6 @@
.exit = speedstep_cpu_exit,
.get = speedstep_get,
.resume = speedstep_resume,
- .owner = THIS_MODULE,
.attr = speedstep_attr,
};
diff --git a/drivers/cpufreq/unicore2-cpufreq.c b/drivers/cpufreq/unicore2-cpufreq.c
index 12fc904..b225f04 100644
--- a/drivers/cpufreq/unicore2-cpufreq.c
+++ b/drivers/cpufreq/unicore2-cpufreq.c
@@ -24,7 +24,7 @@
/* make sure that only the "userspace" governor is run
* -- anything else wouldn't make sense on this platform, anyway.
*/
-int ucv2_verify_speed(struct cpufreq_policy *policy)
+static int ucv2_verify_speed(struct cpufreq_policy *policy)
{
if (policy->cpu)
return -EINVAL;
diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig
index 0e2cd5c..b3fb81d 100644
--- a/drivers/cpuidle/Kconfig
+++ b/drivers/cpuidle/Kconfig
@@ -1,5 +1,6 @@
+menu "CPU Idle"
-menuconfig CPU_IDLE
+config CPU_IDLE
bool "CPU idle PM support"
default y if ACPI || PPC_PSERIES
select CPU_IDLE_GOV_LADDER if (!NO_HZ && !NO_HZ_IDLE)
@@ -29,20 +30,13 @@
bool "Menu governor (for tickless system)"
default y
-config CPU_IDLE_CALXEDA
- bool "CPU Idle Driver for Calxeda processors"
- depends on ARCH_HIGHBANK
- select ARM_CPU_SUSPEND
- help
- Select this to enable cpuidle on Calxeda processors.
-
-config CPU_IDLE_ZYNQ
- bool "CPU Idle Driver for Xilinx Zynq processors"
- depends on ARCH_ZYNQ
- help
- Select this to enable cpuidle on Xilinx Zynq processors.
+menu "ARM CPU Idle Drivers"
+depends on ARM
+source "drivers/cpuidle/Kconfig.arm"
+endmenu
endif
config ARCH_NEEDS_CPU_IDLE_COUPLED
def_bool n
+endmenu
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
new file mode 100644
index 0000000..b330219
--- /dev/null
+++ b/drivers/cpuidle/Kconfig.arm
@@ -0,0 +1,29 @@
+#
+# ARM CPU Idle drivers
+#
+
+config ARM_HIGHBANK_CPUIDLE
+ bool "CPU Idle Driver for Calxeda processors"
+ depends on ARCH_HIGHBANK
+ select ARM_CPU_SUSPEND
+ help
+ Select this to enable cpuidle on Calxeda processors.
+
+config ARM_KIRKWOOD_CPUIDLE
+ bool "CPU Idle Driver for Marvell Kirkwood SoCs"
+ depends on ARCH_KIRKWOOD
+ help
+ This adds the CPU Idle driver for Marvell Kirkwood SoCs.
+
+config ARM_ZYNQ_CPUIDLE
+ bool "CPU Idle Driver for Xilinx Zynq processors"
+ depends on ARCH_ZYNQ
+ help
+ Select this to enable cpuidle on Xilinx Zynq processors.
+
+config ARM_U8500_CPUIDLE
+ bool "Cpu Idle Driver for the ST-E u8500 processors"
+ depends on ARCH_U8500
+ help
+ Select this to enable cpuidle for ST-E u8500 processors
+
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
index 8767a7b..0b9d200 100644
--- a/drivers/cpuidle/Makefile
+++ b/drivers/cpuidle/Makefile
@@ -5,6 +5,9 @@
obj-y += cpuidle.o driver.o governor.o sysfs.o governors/
obj-$(CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED) += coupled.o
-obj-$(CONFIG_CPU_IDLE_CALXEDA) += cpuidle-calxeda.o
-obj-$(CONFIG_ARCH_KIRKWOOD) += cpuidle-kirkwood.o
-obj-$(CONFIG_CPU_IDLE_ZYNQ) += cpuidle-zynq.o
+##################################################################################
+# ARM SoC drivers
+obj-$(CONFIG_ARM_HIGHBANK_CPUIDLE) += cpuidle-calxeda.o
+obj-$(CONFIG_ARM_KIRKWOOD_CPUIDLE) += cpuidle-kirkwood.o
+obj-$(CONFIG_ARM_ZYNQ_CPUIDLE) += cpuidle-zynq.o
+obj-$(CONFIG_ARM_U8500_CPUIDLE) += cpuidle-ux500.o
diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
index 0e6e408..3460584 100644
--- a/drivers/cpuidle/cpuidle-calxeda.c
+++ b/drivers/cpuidle/cpuidle-calxeda.c
@@ -35,7 +35,7 @@
#include <asm/cp15.h>
extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
-extern void *scu_base_addr;
+extern void __iomem *scu_base_addr;
static noinline void calxeda_idle_restore(void)
{
diff --git a/drivers/cpuidle/cpuidle-kirkwood.c b/drivers/cpuidle/cpuidle-kirkwood.c
index 521b0a7..41ba843 100644
--- a/drivers/cpuidle/cpuidle-kirkwood.c
+++ b/drivers/cpuidle/cpuidle-kirkwood.c
@@ -60,9 +60,6 @@
struct resource *res;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL)
- return -EINVAL;
-
ddr_operation_base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(ddr_operation_base))
return PTR_ERR(ddr_operation_base);
@@ -70,7 +67,7 @@
return cpuidle_register(&kirkwood_idle_driver, NULL);
}
-int kirkwood_cpuidle_remove(struct platform_device *pdev)
+static int kirkwood_cpuidle_remove(struct platform_device *pdev)
{
cpuidle_unregister(&kirkwood_idle_driver);
return 0;
diff --git a/arch/arm/mach-ux500/cpuidle.c b/drivers/cpuidle/cpuidle-ux500.c
similarity index 89%
rename from arch/arm/mach-ux500/cpuidle.c
rename to drivers/cpuidle/cpuidle-ux500.c
index a45dd09..e056465 100644
--- a/arch/arm/mach-ux500/cpuidle.c
+++ b/drivers/cpuidle/cpuidle-ux500.c
@@ -16,13 +16,11 @@
#include <linux/smp.h>
#include <linux/mfd/dbx500-prcmu.h>
#include <linux/platform_data/arm-ux500-pm.h>
+#include <linux/platform_device.h>
#include <asm/cpuidle.h>
#include <asm/proc-fns.h>
-#include "db8500-regs.h"
-#include "id.h"
-
static atomic_t master = ATOMIC_INIT(0);
static DEFINE_SPINLOCK(master_lock);
@@ -113,11 +111,8 @@
.state_count = 2,
};
-int __init ux500_idle_init(void)
+static int __init dbx500_cpuidle_probe(struct platform_device *pdev)
{
- if (!(cpu_is_u8500_family() || cpu_is_ux540_family()))
- return -ENODEV;
-
/* Configure wake up reasons */
prcmu_enable_wakeups(PRCMU_WAKEUP(ARM) | PRCMU_WAKEUP(RTC) |
PRCMU_WAKEUP(ABB));
@@ -125,4 +120,12 @@
return cpuidle_register(&ux500_idle_driver, NULL);
}
-device_initcall(ux500_idle_init);
+static struct platform_driver dbx500_cpuidle_plat_driver = {
+ .driver = {
+ .name = "cpuidle-dbx500",
+ .owner = THIS_MODULE,
+ },
+ .probe = dbx500_cpuidle_probe,
+};
+
+module_platform_driver(dbx500_cpuidle_plat_driver);
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index fdc432f..d75040d 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -42,8 +42,6 @@
off = 1;
}
-static int __cpuidle_register_device(struct cpuidle_device *dev);
-
/**
* cpuidle_play_dead - cpu off-lining
*
@@ -278,7 +276,7 @@
*/
int cpuidle_enable_device(struct cpuidle_device *dev)
{
- int ret, i;
+ int ret;
struct cpuidle_driver *drv;
if (!dev)
@@ -292,15 +290,12 @@
if (!drv || !cpuidle_curr_governor)
return -EIO;
+ if (!dev->registered)
+ return -EINVAL;
+
if (!dev->state_count)
dev->state_count = drv->state_count;
- if (dev->registered == 0) {
- ret = __cpuidle_register_device(dev);
- if (ret)
- return ret;
- }
-
poll_idle_init(drv);
ret = cpuidle_add_device_sysfs(dev);
@@ -311,12 +306,6 @@
(ret = cpuidle_curr_governor->enable(drv, dev)))
goto fail_sysfs;
- for (i = 0; i < dev->state_count; i++) {
- dev->states_usage[i].usage = 0;
- dev->states_usage[i].time = 0;
- }
- dev->last_residency = 0;
-
smp_wmb();
dev->enabled = 1;
@@ -360,6 +349,23 @@
EXPORT_SYMBOL_GPL(cpuidle_disable_device);
+static void __cpuidle_unregister_device(struct cpuidle_device *dev)
+{
+ struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
+
+ list_del(&dev->device_list);
+ per_cpu(cpuidle_devices, dev->cpu) = NULL;
+ module_put(drv->owner);
+}
+
+static int __cpuidle_device_init(struct cpuidle_device *dev)
+{
+ memset(dev->states_usage, 0, sizeof(dev->states_usage));
+ dev->last_residency = 0;
+
+ return 0;
+}
+
/**
* __cpuidle_register_device - internal register function called before register
* and enable routines
@@ -377,24 +383,15 @@
per_cpu(cpuidle_devices, dev->cpu) = dev;
list_add(&dev->device_list, &cpuidle_detected_devices);
- ret = cpuidle_add_sysfs(dev);
- if (ret)
- goto err_sysfs;
ret = cpuidle_coupled_register_device(dev);
- if (ret)
- goto err_coupled;
+ if (ret) {
+ __cpuidle_unregister_device(dev);
+ return ret;
+ }
dev->registered = 1;
return 0;
-
-err_coupled:
- cpuidle_remove_sysfs(dev);
-err_sysfs:
- list_del(&dev->device_list);
- per_cpu(cpuidle_devices, dev->cpu) = NULL;
- module_put(drv->owner);
- return ret;
}
/**
@@ -403,25 +400,44 @@
*/
int cpuidle_register_device(struct cpuidle_device *dev)
{
- int ret;
+ int ret = -EBUSY;
if (!dev)
return -EINVAL;
mutex_lock(&cpuidle_lock);
- if ((ret = __cpuidle_register_device(dev))) {
- mutex_unlock(&cpuidle_lock);
- return ret;
- }
+ if (dev->registered)
+ goto out_unlock;
- cpuidle_enable_device(dev);
+ ret = __cpuidle_device_init(dev);
+ if (ret)
+ goto out_unlock;
+
+ ret = __cpuidle_register_device(dev);
+ if (ret)
+ goto out_unlock;
+
+ ret = cpuidle_add_sysfs(dev);
+ if (ret)
+ goto out_unregister;
+
+ ret = cpuidle_enable_device(dev);
+ if (ret)
+ goto out_sysfs;
+
cpuidle_install_idle_handler();
+out_unlock:
mutex_unlock(&cpuidle_lock);
- return 0;
+ return ret;
+out_sysfs:
+ cpuidle_remove_sysfs(dev);
+out_unregister:
+ __cpuidle_unregister_device(dev);
+ goto out_unlock;
}
EXPORT_SYMBOL_GPL(cpuidle_register_device);
@@ -432,8 +448,6 @@
*/
void cpuidle_unregister_device(struct cpuidle_device *dev)
{
- struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
-
if (dev->registered == 0)
return;
@@ -442,14 +456,12 @@
cpuidle_disable_device(dev);
cpuidle_remove_sysfs(dev);
- list_del(&dev->device_list);
- per_cpu(cpuidle_devices, dev->cpu) = NULL;
+
+ __cpuidle_unregister_device(dev);
cpuidle_coupled_unregister_device(dev);
cpuidle_resume_and_unlock();
-
- module_put(drv->owner);
}
EXPORT_SYMBOL_GPL(cpuidle_unregister_device);
diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index 9b78405..9f08e8c 100644
--- a/drivers/cpuidle/governors/ladder.c
+++ b/drivers/cpuidle/governors/ladder.c
@@ -192,14 +192,4 @@
return cpuidle_register_governor(&ladder_governor);
}
-/**
- * exit_ladder - exits the governor
- */
-static void __exit exit_ladder(void)
-{
- cpuidle_unregister_governor(&ladder_governor);
-}
-
-MODULE_LICENSE("GPL");
-module_init(init_ladder);
-module_exit(exit_ladder);
+postcore_initcall(init_ladder);
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index bc580b6..cf7f2f0 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -21,6 +21,15 @@
#include <linux/math64.h>
#include <linux/module.h>
+/*
+ * Please note when changing the tuning values:
+ * If (MAX_INTERESTING-1) * RESOLUTION > UINT_MAX, the result of
+ * a scaling operation multiplication may overflow on 32 bit platforms.
+ * In that case, #define RESOLUTION as ULL to get 64 bit result:
+ * #define RESOLUTION 1024ULL
+ *
+ * The default values do not overflow.
+ */
#define BUCKETS 12
#define INTERVALS 8
#define RESOLUTION 1024
@@ -114,11 +123,11 @@
int needs_update;
unsigned int expected_us;
- u64 predicted_us;
+ unsigned int predicted_us;
unsigned int exit_us;
unsigned int bucket;
- u64 correction_factor[BUCKETS];
- u32 intervals[INTERVALS];
+ unsigned int correction_factor[BUCKETS];
+ unsigned int intervals[INTERVALS];
int interval_ptr;
};
@@ -199,16 +208,20 @@
*/
static void get_typical_interval(struct menu_device *data)
{
- int i = 0, divisor = 0;
- uint64_t max = 0, avg = 0, stddev = 0;
- int64_t thresh = LLONG_MAX; /* Discard outliers above this value. */
+ int i, divisor;
+ unsigned int max, thresh;
+ uint64_t avg, stddev;
+
+ thresh = UINT_MAX; /* Discard outliers above this value */
again:
- /* first calculate average and standard deviation of the past */
- max = avg = divisor = stddev = 0;
+ /* First calculate the average of past intervals */
+ max = 0;
+ avg = 0;
+ divisor = 0;
for (i = 0; i < INTERVALS; i++) {
- int64_t value = data->intervals[i];
+ unsigned int value = data->intervals[i];
if (value <= thresh) {
avg += value;
divisor++;
@@ -218,15 +231,38 @@
}
do_div(avg, divisor);
+ /* Then try to determine standard deviation */
+ stddev = 0;
for (i = 0; i < INTERVALS; i++) {
- int64_t value = data->intervals[i];
+ unsigned int value = data->intervals[i];
if (value <= thresh) {
int64_t diff = value - avg;
stddev += diff * diff;
}
}
do_div(stddev, divisor);
- stddev = int_sqrt(stddev);
+ /*
+ * The typical interval is obtained when standard deviation is small
+ * or standard deviation is small compared to the average interval.
+ *
+ * int_sqrt() formal parameter type is unsigned long. When the
+ * greatest difference to an outlier exceeds ~65 ms * sqrt(divisor)
+ * the resulting squared standard deviation exceeds the input domain
+ * of int_sqrt on platforms where unsigned long is 32 bits in size.
+ * In such case reject the candidate average.
+ *
+ * Use this result only if there is no timer to wake us up sooner.
+ */
+ if (likely(stddev <= ULONG_MAX)) {
+ stddev = int_sqrt(stddev);
+ if (((avg > stddev * 6) && (divisor * 4 >= INTERVALS * 3))
+ || stddev <= 20) {
+ if (data->expected_us > avg)
+ data->predicted_us = avg;
+ return;
+ }
+ }
+
/*
* If we have outliers to the upside in our distribution, discard
* those by setting the threshold to exclude these outliers, then
@@ -235,20 +271,12 @@
*
* This can deal with workloads that have long pauses interspersed
* with sporadic activity with a bunch of short pauses.
- *
- * The typical interval is obtained when standard deviation is small
- * or standard deviation is small compared to the average interval.
*/
- if (((avg > stddev * 6) && (divisor * 4 >= INTERVALS * 3))
- || stddev <= 20) {
- data->predicted_us = avg;
+ if ((divisor * 4) <= INTERVALS * 3)
return;
- } else if ((divisor * 4) > INTERVALS * 3) {
- /* Exclude the max interval */
- thresh = max - 1;
- goto again;
- }
+ thresh = max - 1;
+ goto again;
}
/**
@@ -293,8 +321,13 @@
if (data->correction_factor[data->bucket] == 0)
data->correction_factor[data->bucket] = RESOLUTION * DECAY;
- /* Make sure to round up for half microseconds */
- data->predicted_us = div_round64(data->expected_us * data->correction_factor[data->bucket],
+ /*
+ * Force the result of multiplication to be 64 bits even if both
+ * operands are 32 bits.
+ * Make sure to round up for half microseconds.
+ */
+ data->predicted_us = div_round64((uint64_t)data->expected_us *
+ data->correction_factor[data->bucket],
RESOLUTION * DECAY);
get_typical_interval(data);
@@ -360,7 +393,7 @@
unsigned int last_idle_us = cpuidle_get_last_residency(dev);
struct cpuidle_state *target = &drv->states[last_idx];
unsigned int measured_us;
- u64 new_factor;
+ unsigned int new_factor;
/*
* Ugh, this idle state doesn't support residency measurements, so we
@@ -381,10 +414,9 @@
measured_us -= data->exit_us;
- /* update our correction ratio */
-
- new_factor = data->correction_factor[data->bucket]
- * (DECAY - 1) / DECAY;
+ /* Update our correction ratio */
+ new_factor = data->correction_factor[data->bucket];
+ new_factor -= new_factor / DECAY;
if (data->expected_us > 0 && measured_us < MAX_INTERESTING)
new_factor += RESOLUTION * measured_us / data->expected_us;
@@ -397,9 +429,11 @@
/*
* We don't want 0 as factor; we always want at least
- * a tiny bit of estimated time.
+ * a tiny bit of estimated time. Fortunately, due to rounding,
+ * new_factor will stay nonzero regardless of measured_us values
+ * and the compiler can eliminate this test as long as DECAY > 1.
*/
- if (new_factor == 0)
+ if (DECAY == 1 && unlikely(new_factor == 0))
new_factor = 1;
data->correction_factor[data->bucket] = new_factor;
@@ -442,14 +476,4 @@
return cpuidle_register_governor(&menu_governor);
}
-/**
- * exit_menu - exits the governor
- */
-static void __exit exit_menu(void)
-{
- cpuidle_unregister_governor(&menu_governor);
-}
-
-MODULE_LICENSE("GPL");
-module_init(init_menu);
-module_exit(exit_menu);
+postcore_initcall(init_menu);
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 428754a..8739cc0 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -11,8 +11,10 @@
#include <linux/sysfs.h>
#include <linux/slab.h>
#include <linux/cpu.h>
+#include <linux/completion.h>
#include <linux/capability.h>
#include <linux/device.h>
+#include <linux/kobject.h>
#include "cpuidle.h"
@@ -33,7 +35,8 @@
mutex_lock(&cpuidle_lock);
list_for_each_entry(tmp, &cpuidle_governors, governor_list) {
- if (i >= (ssize_t) ((PAGE_SIZE/sizeof(char)) - CPUIDLE_NAME_LEN - 2))
+ if (i >= (ssize_t) ((PAGE_SIZE/sizeof(char)) -
+ CPUIDLE_NAME_LEN - 2))
goto out;
i += scnprintf(&buf[i], CPUIDLE_NAME_LEN, "%s ", tmp->name);
}
@@ -166,13 +169,28 @@
#define define_one_rw(_name, show, store) \
static struct cpuidle_attr attr_##_name = __ATTR(_name, 0644, show, store)
-#define kobj_to_cpuidledev(k) container_of(k, struct cpuidle_device, kobj)
#define attr_to_cpuidleattr(a) container_of(a, struct cpuidle_attr, attr)
-static ssize_t cpuidle_show(struct kobject * kobj, struct attribute * attr ,char * buf)
+
+struct cpuidle_device_kobj {
+ struct cpuidle_device *dev;
+ struct completion kobj_unregister;
+ struct kobject kobj;
+};
+
+static inline struct cpuidle_device *to_cpuidle_device(struct kobject *kobj)
+{
+ struct cpuidle_device_kobj *kdev =
+ container_of(kobj, struct cpuidle_device_kobj, kobj);
+
+ return kdev->dev;
+}
+
+static ssize_t cpuidle_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
int ret = -EIO;
- struct cpuidle_device *dev = kobj_to_cpuidledev(kobj);
- struct cpuidle_attr * cattr = attr_to_cpuidleattr(attr);
+ struct cpuidle_device *dev = to_cpuidle_device(kobj);
+ struct cpuidle_attr *cattr = attr_to_cpuidleattr(attr);
if (cattr->show) {
mutex_lock(&cpuidle_lock);
@@ -182,12 +200,12 @@
return ret;
}
-static ssize_t cpuidle_store(struct kobject * kobj, struct attribute * attr,
- const char * buf, size_t count)
+static ssize_t cpuidle_store(struct kobject *kobj, struct attribute *attr,
+ const char *buf, size_t count)
{
int ret = -EIO;
- struct cpuidle_device *dev = kobj_to_cpuidledev(kobj);
- struct cpuidle_attr * cattr = attr_to_cpuidleattr(attr);
+ struct cpuidle_device *dev = to_cpuidle_device(kobj);
+ struct cpuidle_attr *cattr = attr_to_cpuidleattr(attr);
if (cattr->store) {
mutex_lock(&cpuidle_lock);
@@ -204,9 +222,10 @@
static void cpuidle_sysfs_release(struct kobject *kobj)
{
- struct cpuidle_device *dev = kobj_to_cpuidledev(kobj);
+ struct cpuidle_device_kobj *kdev =
+ container_of(kobj, struct cpuidle_device_kobj, kobj);
- complete(&dev->kobj_unregister);
+ complete(&kdev->kobj_unregister);
}
static struct kobj_type ktype_cpuidle = {
@@ -237,8 +256,8 @@
#define define_store_state_ull_function(_name) \
static ssize_t store_state_##_name(struct cpuidle_state *state, \
- struct cpuidle_state_usage *state_usage, \
- const char *buf, size_t size) \
+ struct cpuidle_state_usage *state_usage, \
+ const char *buf, size_t size) \
{ \
unsigned long long value; \
int err; \
@@ -256,14 +275,16 @@
#define define_show_state_ull_function(_name) \
static ssize_t show_state_##_name(struct cpuidle_state *state, \
- struct cpuidle_state_usage *state_usage, char *buf) \
+ struct cpuidle_state_usage *state_usage, \
+ char *buf) \
{ \
return sprintf(buf, "%llu\n", state_usage->_name);\
}
#define define_show_state_str_function(_name) \
static ssize_t show_state_##_name(struct cpuidle_state *state, \
- struct cpuidle_state_usage *state_usage, char *buf) \
+ struct cpuidle_state_usage *state_usage, \
+ char *buf) \
{ \
if (state->_name[0] == '\0')\
return sprintf(buf, "<null>\n");\
@@ -309,8 +330,9 @@
#define kobj_to_state(k) (kobj_to_state_obj(k)->state)
#define kobj_to_state_usage(k) (kobj_to_state_obj(k)->state_usage)
#define attr_to_stateattr(a) container_of(a, struct cpuidle_state_attr, attr)
-static ssize_t cpuidle_state_show(struct kobject * kobj,
- struct attribute * attr ,char * buf)
+
+static ssize_t cpuidle_state_show(struct kobject *kobj, struct attribute *attr,
+ char * buf)
{
int ret = -EIO;
struct cpuidle_state *state = kobj_to_state(kobj);
@@ -323,8 +345,8 @@
return ret;
}
-static ssize_t cpuidle_state_store(struct kobject *kobj,
- struct attribute *attr, const char *buf, size_t size)
+static ssize_t cpuidle_state_store(struct kobject *kobj, struct attribute *attr,
+ const char *buf, size_t size)
{
int ret = -EIO;
struct cpuidle_state *state = kobj_to_state(kobj);
@@ -371,6 +393,7 @@
{
int i, ret = -ENOMEM;
struct cpuidle_state_kobj *kobj;
+ struct cpuidle_device_kobj *kdev = device->kobj_dev;
struct cpuidle_driver *drv = cpuidle_get_cpu_driver(device);
/* state statistics */
@@ -383,7 +406,7 @@
init_completion(&kobj->kobj_unregister);
ret = kobject_init_and_add(&kobj->kobj, &ktype_state_cpuidle,
- &device->kobj, "state%d", i);
+ &kdev->kobj, "state%d", i);
if (ret) {
kfree(kobj);
goto error_state;
@@ -449,8 +472,8 @@
complete(&driver_kobj->kobj_unregister);
}
-static ssize_t cpuidle_driver_show(struct kobject *kobj, struct attribute * attr,
- char * buf)
+static ssize_t cpuidle_driver_show(struct kobject *kobj, struct attribute *attr,
+ char *buf)
{
int ret = -EIO;
struct cpuidle_driver_kobj *driver_kobj = kobj_to_driver_kobj(kobj);
@@ -500,6 +523,7 @@
static int cpuidle_add_driver_sysfs(struct cpuidle_device *dev)
{
struct cpuidle_driver_kobj *kdrv;
+ struct cpuidle_device_kobj *kdev = dev->kobj_dev;
struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
int ret;
@@ -511,7 +535,7 @@
init_completion(&kdrv->kobj_unregister);
ret = kobject_init_and_add(&kdrv->kobj, &ktype_driver_cpuidle,
- &dev->kobj, "driver");
+ &kdev->kobj, "driver");
if (ret) {
kfree(kdrv);
return ret;
@@ -580,16 +604,28 @@
*/
int cpuidle_add_sysfs(struct cpuidle_device *dev)
{
+ struct cpuidle_device_kobj *kdev;
struct device *cpu_dev = get_cpu_device((unsigned long)dev->cpu);
int error;
- init_completion(&dev->kobj_unregister);
+ kdev = kzalloc(sizeof(*kdev), GFP_KERNEL);
+ if (!kdev)
+ return -ENOMEM;
+ kdev->dev = dev;
+ dev->kobj_dev = kdev;
- error = kobject_init_and_add(&dev->kobj, &ktype_cpuidle, &cpu_dev->kobj,
- "cpuidle");
- if (!error)
- kobject_uevent(&dev->kobj, KOBJ_ADD);
- return error;
+ init_completion(&kdev->kobj_unregister);
+
+ error = kobject_init_and_add(&kdev->kobj, &ktype_cpuidle, &cpu_dev->kobj,
+ "cpuidle");
+ if (error) {
+ kfree(kdev);
+ return error;
+ }
+
+ kobject_uevent(&kdev->kobj, KOBJ_ADD);
+
+ return 0;
}
/**
@@ -598,6 +634,9 @@
*/
void cpuidle_remove_sysfs(struct cpuidle_device *dev)
{
- kobject_put(&dev->kobj);
- wait_for_completion(&dev->kobj_unregister);
+ struct cpuidle_device_kobj *kdev = dev->kobj_dev;
+
+ kobject_put(&kdev->kobj);
+ wait_for_completion(&kdev->kobj_unregister);
+ kfree(kdev);
}
diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
index 19e3660..3bc84145 100644
--- a/drivers/gpu/drm/gma500/psb_intel_sdvo.c
+++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
@@ -500,7 +500,8 @@
&status))
goto log_fail;
- while (status == SDVO_CMD_STATUS_PENDING && retry--) {
+ while ((status == SDVO_CMD_STATUS_PENDING ||
+ status == SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED) && retry--) {
udelay(15);
if (!psb_intel_sdvo_read_byte(psb_intel_sdvo,
SDVO_I2C_CMD_STATUS,
diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
index dc53a52..9e65783 100644
--- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
+++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
@@ -85,9 +85,17 @@
struct sg_table *sg,
enum dma_data_direction dir)
{
+ struct drm_i915_gem_object *obj = attachment->dmabuf->priv;
+
+ mutex_lock(&obj->base.dev->struct_mutex);
+
dma_unmap_sg(attachment->dev, sg->sgl, sg->nents, dir);
sg_free_table(sg);
kfree(sg);
+
+ i915_gem_object_unpin_pages(obj);
+
+ mutex_unlock(&obj->base.dev->struct_mutex);
}
static void i915_gem_dmabuf_release(struct dma_buf *dma_buf)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 6f51429..53cddd9 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -752,6 +752,8 @@
will not assert AGPBUSY# and will only
be delivered when out of C3. */
#define INSTPM_FORCE_ORDERING (1<<7) /* GEN6+ */
+#define INSTPM_TLB_INVALIDATE (1<<9)
+#define INSTPM_SYNC_FLUSH (1<<5)
#define ACTHD 0x020c8
#define FW_BLC 0x020d8
#define FW_BLC2 0x020dc
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e38b457..be79f47 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10042,6 +10042,8 @@
u32 power_well_driver;
+ int num_transcoders;
+
struct intel_cursor_error_state {
u32 control;
u32 position;
@@ -10050,16 +10052,7 @@
} cursor[I915_MAX_PIPES];
struct intel_pipe_error_state {
- enum transcoder cpu_transcoder;
- u32 conf;
u32 source;
-
- u32 htotal;
- u32 hblank;
- u32 hsync;
- u32 vtotal;
- u32 vblank;
- u32 vsync;
} pipe[I915_MAX_PIPES];
struct intel_plane_error_state {
@@ -10071,6 +10064,19 @@
u32 surface;
u32 tile_offset;
} plane[I915_MAX_PIPES];
+
+ struct intel_transcoder_error_state {
+ enum transcoder cpu_transcoder;
+
+ u32 conf;
+
+ u32 htotal;
+ u32 hblank;
+ u32 hsync;
+ u32 vtotal;
+ u32 vblank;
+ u32 vsync;
+ } transcoder[4];
};
struct intel_display_error_state *
@@ -10078,9 +10084,17 @@
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct intel_display_error_state *error;
- enum transcoder cpu_transcoder;
+ int transcoders[] = {
+ TRANSCODER_A,
+ TRANSCODER_B,
+ TRANSCODER_C,
+ TRANSCODER_EDP,
+ };
int i;
+ if (INTEL_INFO(dev)->num_pipes == 0)
+ return NULL;
+
error = kmalloc(sizeof(*error), GFP_ATOMIC);
if (error == NULL)
return NULL;
@@ -10089,9 +10103,6 @@
error->power_well_driver = I915_READ(HSW_PWR_WELL_DRIVER);
for_each_pipe(i) {
- cpu_transcoder = intel_pipe_to_cpu_transcoder(dev_priv, i);
- error->pipe[i].cpu_transcoder = cpu_transcoder;
-
if (INTEL_INFO(dev)->gen <= 6 || IS_VALLEYVIEW(dev)) {
error->cursor[i].control = I915_READ(CURCNTR(i));
error->cursor[i].position = I915_READ(CURPOS(i));
@@ -10115,14 +10126,25 @@
error->plane[i].tile_offset = I915_READ(DSPTILEOFF(i));
}
- error->pipe[i].conf = I915_READ(PIPECONF(cpu_transcoder));
error->pipe[i].source = I915_READ(PIPESRC(i));
- error->pipe[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
- error->pipe[i].hblank = I915_READ(HBLANK(cpu_transcoder));
- error->pipe[i].hsync = I915_READ(HSYNC(cpu_transcoder));
- error->pipe[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
- error->pipe[i].vblank = I915_READ(VBLANK(cpu_transcoder));
- error->pipe[i].vsync = I915_READ(VSYNC(cpu_transcoder));
+ }
+
+ error->num_transcoders = INTEL_INFO(dev)->num_pipes;
+ if (HAS_DDI(dev_priv->dev))
+ error->num_transcoders++; /* Account for eDP. */
+
+ for (i = 0; i < error->num_transcoders; i++) {
+ enum transcoder cpu_transcoder = transcoders[i];
+
+ error->transcoder[i].cpu_transcoder = cpu_transcoder;
+
+ error->transcoder[i].conf = I915_READ(PIPECONF(cpu_transcoder));
+ error->transcoder[i].htotal = I915_READ(HTOTAL(cpu_transcoder));
+ error->transcoder[i].hblank = I915_READ(HBLANK(cpu_transcoder));
+ error->transcoder[i].hsync = I915_READ(HSYNC(cpu_transcoder));
+ error->transcoder[i].vtotal = I915_READ(VTOTAL(cpu_transcoder));
+ error->transcoder[i].vblank = I915_READ(VBLANK(cpu_transcoder));
+ error->transcoder[i].vsync = I915_READ(VSYNC(cpu_transcoder));
}
/* In the code above we read the registers without checking if the power
@@ -10144,22 +10166,16 @@
{
int i;
+ if (!error)
+ return;
+
err_printf(m, "Num Pipes: %d\n", INTEL_INFO(dev)->num_pipes);
if (HAS_POWER_WELL(dev))
err_printf(m, "PWR_WELL_CTL2: %08x\n",
error->power_well_driver);
for_each_pipe(i) {
err_printf(m, "Pipe [%d]:\n", i);
- err_printf(m, " CPU transcoder: %c\n",
- transcoder_name(error->pipe[i].cpu_transcoder));
- err_printf(m, " CONF: %08x\n", error->pipe[i].conf);
err_printf(m, " SRC: %08x\n", error->pipe[i].source);
- err_printf(m, " HTOTAL: %08x\n", error->pipe[i].htotal);
- err_printf(m, " HBLANK: %08x\n", error->pipe[i].hblank);
- err_printf(m, " HSYNC: %08x\n", error->pipe[i].hsync);
- err_printf(m, " VTOTAL: %08x\n", error->pipe[i].vtotal);
- err_printf(m, " VBLANK: %08x\n", error->pipe[i].vblank);
- err_printf(m, " VSYNC: %08x\n", error->pipe[i].vsync);
err_printf(m, "Plane [%d]:\n", i);
err_printf(m, " CNTR: %08x\n", error->plane[i].control);
@@ -10180,5 +10196,17 @@
err_printf(m, " POS: %08x\n", error->cursor[i].position);
err_printf(m, " BASE: %08x\n", error->cursor[i].base);
}
+
+ for (i = 0; i < error->num_transcoders; i++) {
+ err_printf(m, " CPU transcoder: %c\n",
+ transcoder_name(error->transcoder[i].cpu_transcoder));
+ err_printf(m, " CONF: %08x\n", error->transcoder[i].conf);
+ err_printf(m, " HTOTAL: %08x\n", error->transcoder[i].htotal);
+ err_printf(m, " HBLANK: %08x\n", error->transcoder[i].hblank);
+ err_printf(m, " HSYNC: %08x\n", error->transcoder[i].hsync);
+ err_printf(m, " VTOTAL: %08x\n", error->transcoder[i].vtotal);
+ err_printf(m, " VBLANK: %08x\n", error->transcoder[i].vblank);
+ err_printf(m, " VSYNC: %08x\n", error->transcoder[i].vsync);
+ }
}
#endif
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 664118d..079ef01 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -968,6 +968,18 @@
I915_WRITE(mmio, (u32)ring->status_page.gfx_addr);
POSTING_READ(mmio);
+
+ /* Flush the TLB for this page */
+ if (INTEL_INFO(dev)->gen >= 6) {
+ u32 reg = RING_INSTPM(ring->mmio_base);
+ I915_WRITE(reg,
+ _MASKED_BIT_ENABLE(INSTPM_TLB_INVALIDATE |
+ INSTPM_SYNC_FLUSH));
+ if (wait_for((I915_READ(reg) & INSTPM_SYNC_FLUSH) == 0,
+ 1000))
+ DRM_ERROR("%s: wait for SyncFlush to complete for TLB invalidation timed out\n",
+ ring->name);
+ }
}
static int
diff --git a/drivers/gpu/drm/nouveau/core/core/mm.c b/drivers/gpu/drm/nouveau/core/core/mm.c
index d829172..7a4e089 100644
--- a/drivers/gpu/drm/nouveau/core/core/mm.c
+++ b/drivers/gpu/drm/nouveau/core/core/mm.c
@@ -98,6 +98,8 @@
u32 splitoff;
u32 s, e;
+ BUG_ON(!type);
+
list_for_each_entry(this, &mm->free, fl_entry) {
e = this->offset + this->length;
s = this->offset;
@@ -162,6 +164,8 @@
struct nouveau_mm_node *prev, *this, *next;
u32 mask = align - 1;
+ BUG_ON(!type);
+
list_for_each_entry_reverse(this, &mm->free, fl_entry) {
u32 e = this->offset + this->length;
u32 s = this->offset;
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
index d550226..9d2cd20 100644
--- a/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
+++ b/drivers/gpu/drm/nouveau/core/include/subdev/mc.h
@@ -20,8 +20,8 @@
return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_MC];
}
-#define nouveau_mc_create(p,e,o,d) \
- nouveau_mc_create_((p), (e), (o), sizeof(**d), (void **)d)
+#define nouveau_mc_create(p,e,o,m,d) \
+ nouveau_mc_create_((p), (e), (o), (m), sizeof(**d), (void **)d)
#define nouveau_mc_destroy(p) ({ \
struct nouveau_mc *pmc = (p); _nouveau_mc_dtor(nv_object(pmc)); \
})
@@ -33,7 +33,8 @@
})
int nouveau_mc_create_(struct nouveau_object *, struct nouveau_object *,
- struct nouveau_oclass *, int, void **);
+ struct nouveau_oclass *, const struct nouveau_mc_intr *,
+ int, void **);
void _nouveau_mc_dtor(struct nouveau_object *);
int _nouveau_mc_init(struct nouveau_object *);
int _nouveau_mc_fini(struct nouveau_object *, bool);
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c
index 19e3a9a..ab7ef0a 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv49.c
@@ -40,15 +40,15 @@
return ret;
switch (pfb914 & 0x00000003) {
- case 0x00000000: pfb->ram->type = NV_MEM_TYPE_DDR1; break;
- case 0x00000001: pfb->ram->type = NV_MEM_TYPE_DDR2; break;
- case 0x00000002: pfb->ram->type = NV_MEM_TYPE_GDDR3; break;
+ case 0x00000000: ram->type = NV_MEM_TYPE_DDR1; break;
+ case 0x00000001: ram->type = NV_MEM_TYPE_DDR2; break;
+ case 0x00000002: ram->type = NV_MEM_TYPE_GDDR3; break;
case 0x00000003: break;
}
- pfb->ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000;
- pfb->ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
- pfb->ram->tags = nv_rd32(pfb, 0x100320);
+ ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000;
+ ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
+ ram->tags = nv_rd32(pfb, 0x100320);
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c
index 7192aa6..63a6aab 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnv4e.c
@@ -38,8 +38,8 @@
if (ret)
return ret;
- pfb->ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000;
- pfb->ram->type = NV_MEM_TYPE_STOLEN;
+ ram->size = nv_rd32(pfb, 0x10020c) & 0xff000000;
+ ram->type = NV_MEM_TYPE_STOLEN;
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c
index bcca883..cce65cc 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c
@@ -30,8 +30,9 @@
struct nouveau_ltcg base;
u32 part_nr;
u32 subp_nr;
- struct nouveau_mm tags;
u32 num_tags;
+ u32 tag_base;
+ struct nouveau_mm tags;
struct nouveau_mm_node *tag_ram;
};
@@ -117,10 +118,6 @@
u32 tag_size, tag_margin, tag_align;
int ret;
- nv_wr32(priv, 0x17e8d8, priv->part_nr);
- if (nv_device(pfb)->card_type >= NV_E0)
- nv_wr32(priv, 0x17e000, priv->part_nr);
-
/* tags for 1/4 of VRAM should be enough (8192/4 per GiB of VRAM) */
priv->num_tags = (pfb->ram->size >> 17) / 4;
if (priv->num_tags > (1 << 17))
@@ -142,7 +139,7 @@
tag_size += tag_align;
tag_size = (tag_size + 0xfff) >> 12; /* round up */
- ret = nouveau_mm_tail(&pfb->vram, 0, tag_size, tag_size, 1,
+ ret = nouveau_mm_tail(&pfb->vram, 1, tag_size, tag_size, 1,
&priv->tag_ram);
if (ret) {
priv->num_tags = 0;
@@ -152,7 +149,7 @@
tag_base += tag_align - 1;
ret = do_div(tag_base, tag_align);
- nv_wr32(priv, 0x17e8d4, tag_base);
+ priv->tag_base = tag_base;
}
ret = nouveau_mm_init(&priv->tags, 0, priv->num_tags, 1);
@@ -182,8 +179,6 @@
}
priv->subp_nr = nv_rd32(priv, 0x17e8dc) >> 28;
- nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
-
ret = nvc0_ltcg_init_tag_ram(pfb, priv);
if (ret)
return ret;
@@ -209,13 +204,32 @@
nouveau_ltcg_destroy(ltcg);
}
+static int
+nvc0_ltcg_init(struct nouveau_object *object)
+{
+ struct nouveau_ltcg *ltcg = (struct nouveau_ltcg *)object;
+ struct nvc0_ltcg_priv *priv = (struct nvc0_ltcg_priv *)ltcg;
+ int ret;
+
+ ret = nouveau_ltcg_init(ltcg);
+ if (ret)
+ return ret;
+
+ nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
+ nv_wr32(priv, 0x17e8d8, priv->part_nr);
+ if (nv_device(ltcg)->card_type >= NV_E0)
+ nv_wr32(priv, 0x17e000, priv->part_nr);
+ nv_wr32(priv, 0x17e8d4, priv->tag_base);
+ return 0;
+}
+
struct nouveau_oclass
nvc0_ltcg_oclass = {
.handle = NV_SUBDEV(LTCG, 0xc0),
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = nvc0_ltcg_ctor,
.dtor = nvc0_ltcg_dtor,
- .init = _nouveau_ltcg_init,
+ .init = nvc0_ltcg_init,
.fini = _nouveau_ltcg_fini,
},
};
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
index 1c0330b..ec9cd6f 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/base.c
@@ -80,7 +80,9 @@
int
nouveau_mc_create_(struct nouveau_object *parent, struct nouveau_object *engine,
- struct nouveau_oclass *oclass, int length, void **pobject)
+ struct nouveau_oclass *oclass,
+ const struct nouveau_mc_intr *intr_map,
+ int length, void **pobject)
{
struct nouveau_device *device = nv_device(parent);
struct nouveau_mc *pmc;
@@ -92,6 +94,8 @@
if (ret)
return ret;
+ pmc->intr_map = intr_map;
+
ret = request_irq(device->pdev->irq, nouveau_mc_intr,
IRQF_SHARED, "nouveau", pmc);
if (ret < 0)
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c
index 8c76971..64aa4ed 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv04.c
@@ -50,12 +50,11 @@
struct nv04_mc_priv *priv;
int ret;
- ret = nouveau_mc_create(parent, engine, oclass, &priv);
+ ret = nouveau_mc_create(parent, engine, oclass, nv04_mc_intr, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
- priv->base.intr_map = nv04_mc_intr;
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c
index 5191937..d989178 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv44.c
@@ -36,12 +36,11 @@
struct nv44_mc_priv *priv;
int ret;
- ret = nouveau_mc_create(parent, engine, oclass, &priv);
+ ret = nouveau_mc_create(parent, engine, oclass, nv04_mc_intr, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
- priv->base.intr_map = nv04_mc_intr;
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
index f25fc5f..2b1afe2 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv50.c
@@ -53,12 +53,11 @@
struct nv50_mc_priv *priv;
int ret;
- ret = nouveau_mc_create(parent, engine, oclass, &priv);
+ ret = nouveau_mc_create(parent, engine, oclass, nv50_mc_intr, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
- priv->base.intr_map = nv50_mc_intr;
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c
index e82fd21..0d57b4d 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nv98.c
@@ -54,12 +54,11 @@
struct nv98_mc_priv *priv;
int ret;
- ret = nouveau_mc_create(parent, engine, oclass, &priv);
+ ret = nouveau_mc_create(parent, engine, oclass, nv98_mc_intr, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
- priv->base.intr_map = nv98_mc_intr;
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
index c5da3ba..104175c 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mc/nvc0.c
@@ -57,12 +57,11 @@
struct nvc0_mc_priv *priv;
int ret;
- ret = nouveau_mc_create(parent, engine, oclass, &priv);
+ ret = nouveau_mc_create(parent, engine, oclass, nvc0_mc_intr, &priv);
*pobject = nv_object(priv);
if (ret)
return ret;
- priv->base.intr_map = nvc0_mc_intr;
return 0;
}
diff --git a/drivers/gpu/drm/nouveau/dispnv04/crtc.c b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
index 0782bd2..6a13ffb 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/crtc.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/crtc.c
@@ -606,6 +606,24 @@
regp->ramdac_a34 = 0x1;
}
+static int
+nv_crtc_swap_fbs(struct drm_crtc *crtc, struct drm_framebuffer *old_fb)
+{
+ struct nv04_display *disp = nv04_display(crtc->dev);
+ struct nouveau_framebuffer *nvfb = nouveau_framebuffer(crtc->fb);
+ struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
+ int ret;
+
+ ret = nouveau_bo_pin(nvfb->nvbo, TTM_PL_FLAG_VRAM);
+ if (ret == 0) {
+ if (disp->image[nv_crtc->index])
+ nouveau_bo_unpin(disp->image[nv_crtc->index]);
+ nouveau_bo_ref(nvfb->nvbo, &disp->image[nv_crtc->index]);
+ }
+
+ return ret;
+}
+
/**
* Sets up registers for the given mode/adjusted_mode pair.
*
@@ -622,10 +640,15 @@
struct drm_device *dev = crtc->dev;
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
struct nouveau_drm *drm = nouveau_drm(dev);
+ int ret;
NV_DEBUG(drm, "CTRC mode on CRTC %d:\n", nv_crtc->index);
drm_mode_debug_printmodeline(adjusted_mode);
+ ret = nv_crtc_swap_fbs(crtc, old_fb);
+ if (ret)
+ return ret;
+
/* unlock must come after turning off FP_TG_CONTROL in output_prepare */
nv_lock_vga_crtc_shadow(dev, nv_crtc->index, -1);
@@ -722,6 +745,7 @@
static void nv_crtc_destroy(struct drm_crtc *crtc)
{
+ struct nv04_display *disp = nv04_display(crtc->dev);
struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
if (!nv_crtc)
@@ -729,6 +753,10 @@
drm_crtc_cleanup(crtc);
+ if (disp->image[nv_crtc->index])
+ nouveau_bo_unpin(disp->image[nv_crtc->index]);
+ nouveau_bo_ref(NULL, &disp->image[nv_crtc->index]);
+
nouveau_bo_unmap(nv_crtc->cursor.nvbo);
nouveau_bo_unpin(nv_crtc->cursor.nvbo);
nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
@@ -754,6 +782,16 @@
}
static void
+nv_crtc_disable(struct drm_crtc *crtc)
+{
+ struct nv04_display *disp = nv04_display(crtc->dev);
+ struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
+ if (disp->image[nv_crtc->index])
+ nouveau_bo_unpin(disp->image[nv_crtc->index]);
+ nouveau_bo_ref(NULL, &disp->image[nv_crtc->index]);
+}
+
+static void
nv_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b, uint32_t start,
uint32_t size)
{
@@ -791,7 +829,6 @@
struct drm_framebuffer *drm_fb;
struct nouveau_framebuffer *fb;
int arb_burst, arb_lwm;
- int ret;
NV_DEBUG(drm, "index %d\n", nv_crtc->index);
@@ -801,10 +838,8 @@
return 0;
}
-
/* If atomic, we want to switch to the fb we were passed, so
- * now we update pointers to do that. (We don't pin; just
- * assume we're already pinned and update the base address.)
+ * now we update pointers to do that.
*/
if (atomic) {
drm_fb = passed_fb;
@@ -812,17 +847,6 @@
} else {
drm_fb = crtc->fb;
fb = nouveau_framebuffer(crtc->fb);
- /* If not atomic, we can go ahead and pin, and unpin the
- * old fb we were passed.
- */
- ret = nouveau_bo_pin(fb->nvbo, TTM_PL_FLAG_VRAM);
- if (ret)
- return ret;
-
- if (passed_fb) {
- struct nouveau_framebuffer *ofb = nouveau_framebuffer(passed_fb);
- nouveau_bo_unpin(ofb->nvbo);
- }
}
nv_crtc->fb.offset = fb->nvbo->bo.offset;
@@ -877,6 +901,9 @@
nv04_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
struct drm_framebuffer *old_fb)
{
+ int ret = nv_crtc_swap_fbs(crtc, old_fb);
+ if (ret)
+ return ret;
return nv04_crtc_do_mode_set_base(crtc, old_fb, x, y, false);
}
@@ -1027,6 +1054,7 @@
.mode_set_base = nv04_crtc_mode_set_base,
.mode_set_base_atomic = nv04_crtc_mode_set_base_atomic,
.load_lut = nv_crtc_gamma_load,
+ .disable = nv_crtc_disable,
};
int
diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.h b/drivers/gpu/drm/nouveau/dispnv04/disp.h
index a0a031d..9928187 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/disp.h
+++ b/drivers/gpu/drm/nouveau/dispnv04/disp.h
@@ -81,6 +81,7 @@
uint32_t saved_vga_font[4][16384];
uint32_t dac_users[4];
struct nouveau_object *core;
+ struct nouveau_bo *image[2];
};
static inline struct nv04_display *
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 907d20e..a03e75d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -577,6 +577,9 @@
ret = nv50_display_flip_next(crtc, fb, chan, 0);
if (ret)
goto fail_unreserve;
+ } else {
+ struct nv04_display *dispnv04 = nv04_display(dev);
+ nouveau_bo_ref(new_bo, &dispnv04->image[nouveau_crtc(crtc)->index]);
}
ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
diff --git a/drivers/gpu/drm/nouveau/nv40_pm.c b/drivers/gpu/drm/nouveau/nv40_pm.c
index 3af5bcd..625f80d 100644
--- a/drivers/gpu/drm/nouveau/nv40_pm.c
+++ b/drivers/gpu/drm/nouveau/nv40_pm.c
@@ -131,7 +131,7 @@
if (clk < pll->vco1.max_freq)
pll->vco2.max_freq = 0;
- pclk->pll_calc(pclk, pll, clk, &coef);
+ ret = pclk->pll_calc(pclk, pll, clk, &coef);
if (ret == 0)
return -ERANGE;
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 274b8e1..9f19259 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -2163,7 +2163,7 @@
WREG32(reg, tmp_); \
} while (0)
#define WREG32_AND(reg, and) WREG32_P(reg, 0, and)
-#define WREG32_OR(reg, or) WREG32_P(reg, or, ~or)
+#define WREG32_OR(reg, or) WREG32_P(reg, or, ~(or))
#define WREG32_PLL_P(reg, val, mask) \
do { \
uint32_t tmp_ = RREG32_PLL(reg); \
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index f1c1575..b79f4f5 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -356,6 +356,14 @@
return -EINVAL;
}
+ if (bo->tbo.sync_obj) {
+ r = radeon_fence_wait(bo->tbo.sync_obj, false);
+ if (r) {
+ DRM_ERROR("Failed waiting for UVD message (%d)!\n", r);
+ return r;
+ }
+ }
+
r = radeon_bo_kmap(bo, &ptr);
if (r) {
DRM_ERROR("Failed mapping the UVD message (%d)!\n", r);
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index bcc68ec..f5e92cf 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -744,10 +744,10 @@
(const u32)ARRAY_SIZE(r7xx_golden_dyn_gpr_registers));
radeon_program_register_sequence(rdev,
rv730_golden_registers,
- (const u32)ARRAY_SIZE(rv770_golden_registers));
+ (const u32)ARRAY_SIZE(rv730_golden_registers));
radeon_program_register_sequence(rdev,
rv730_mgcg_init,
- (const u32)ARRAY_SIZE(rv770_mgcg_init));
+ (const u32)ARRAY_SIZE(rv730_mgcg_init));
break;
case CHIP_RV710:
radeon_program_register_sequence(rdev,
@@ -758,18 +758,18 @@
(const u32)ARRAY_SIZE(r7xx_golden_dyn_gpr_registers));
radeon_program_register_sequence(rdev,
rv710_golden_registers,
- (const u32)ARRAY_SIZE(rv770_golden_registers));
+ (const u32)ARRAY_SIZE(rv710_golden_registers));
radeon_program_register_sequence(rdev,
rv710_mgcg_init,
- (const u32)ARRAY_SIZE(rv770_mgcg_init));
+ (const u32)ARRAY_SIZE(rv710_mgcg_init));
break;
case CHIP_RV740:
radeon_program_register_sequence(rdev,
rv740_golden_registers,
- (const u32)ARRAY_SIZE(rv770_golden_registers));
+ (const u32)ARRAY_SIZE(rv740_golden_registers));
radeon_program_register_sequence(rdev,
rv740_mgcg_init,
- (const u32)ARRAY_SIZE(rv770_mgcg_init));
+ (const u32)ARRAY_SIZE(rv740_mgcg_init));
break;
default:
break;
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index f1a6796b..140c8ef5 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -520,11 +520,12 @@
ide_port_for_each_present_dev(i, drive, hwif) {
if (drive->acpidata->obj_handle)
acpi_bus_set_power(drive->acpidata->obj_handle,
- on ? ACPI_STATE_D0 : ACPI_STATE_D3);
+ on ? ACPI_STATE_D0 : ACPI_STATE_D3_COLD);
}
if (!on)
- acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D3);
+ acpi_bus_set_power(hwif->acpidata->obj_handle,
+ ACPI_STATE_D3_COLD);
}
/**
diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c
index 5f4749e..c1cd569 100644
--- a/drivers/iio/light/adjd_s311.c
+++ b/drivers/iio/light/adjd_s311.c
@@ -232,7 +232,8 @@
switch (mask) {
case IIO_CHAN_INFO_RAW:
- ret = adjd_s311_read_data(indio_dev, chan->address, val);
+ ret = adjd_s311_read_data(indio_dev,
+ ADJD_S311_DATA_REG(chan->address), val);
if (ret < 0)
return ret;
return IIO_VAL_INT;
diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index dc112a7..4296155 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -959,23 +959,21 @@
return r;
}
-static void remove_mapping(struct mq_policy *mq, dm_oblock_t oblock)
+static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
{
- struct entry *e = hash_lookup(mq, oblock);
+ struct mq_policy *mq = to_mq_policy(p);
+ struct entry *e;
+
+ mutex_lock(&mq->lock);
+
+ e = hash_lookup(mq, oblock);
BUG_ON(!e || !e->in_cache);
del(mq, e);
e->in_cache = false;
push(mq, e);
-}
-static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
-{
- struct mq_policy *mq = to_mq_policy(p);
-
- mutex_lock(&mq->lock);
- remove_mapping(mq, oblock);
mutex_unlock(&mq->lock);
}
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 3c157fa..0d68eb1 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -3094,6 +3094,10 @@
.pdata_size = sizeof(db8500_cpufreq_table),
},
{
+ .name = "cpuidle-dbx500",
+ .of_compatible = "stericsson,cpuidle-dbx500",
+ },
+ {
.name = "db8500-thermal",
.num_resources = ARRAY_SIZE(db8500_thsens_resources),
.resources = db8500_thsens_resources,
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 07f257d4..e48cb33 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3714,11 +3714,17 @@
* The bonding ndo_neigh_setup is called at init time beofre any
* slave exists. So we must declare proxy setup function which will
* be used at run time to resolve the actual slave neigh param setup.
+ *
+ * It's also called by master devices (such as vlans) to setup their
+ * underlying devices. In that case - do nothing, we're already set up from
+ * our init.
*/
static int bond_neigh_setup(struct net_device *dev,
struct neigh_parms *parms)
{
- parms->neigh_setup = bond_neigh_init;
+ /* modify only our neigh_parms */
+ if (parms->dev == dev)
+ parms->neigh_setup = bond_neigh_init;
return 0;
}
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c
index 25723d8..925ab8e 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -649,7 +649,7 @@
if ((mc->ptr + rec_len) > mc->end)
goto decode_failed;
- memcpy(cf->data, mc->ptr, rec_len);
+ memcpy(cf->data, mc->ptr, cf->can_dlc);
mc->ptr += rec_len;
}
diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index f1b121e..55d79cb 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -199,7 +199,7 @@
struct arc_emac_priv *priv = netdev_priv(ndev);
unsigned int work_done;
- for (work_done = 0; work_done <= budget; work_done++) {
+ for (work_done = 0; work_done < budget; work_done++) {
unsigned int *last_rx_bd = &priv->last_rx_bd;
struct net_device_stats *stats = &priv->stats;
struct buffer_state *rx_buff = &priv->rx_buff[*last_rx_bd];
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index d80e34b..00b88cb 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1333,6 +1333,8 @@
BNX2X_SP_RTNL_VFPF_CHANNEL_DOWN,
BNX2X_SP_RTNL_VFPF_STORM_RX_MODE,
BNX2X_SP_RTNL_HYPERVISOR_VLAN,
+ BNX2X_SP_RTNL_TX_STOP,
+ BNX2X_SP_RTNL_TX_RESUME,
};
struct bnx2x_prev_path_list {
@@ -1502,6 +1504,7 @@
#define BC_SUPPORTS_DCBX_MSG_NON_PMF (1 << 21)
#define IS_VF_FLAG (1 << 22)
#define INTERRUPTS_ENABLED_FLAG (1 << 23)
+#define BC_SUPPORTS_RMMOD_CMD (1 << 24)
#define BP_NOMCP(bp) ((bp)->flags & NO_MCP_FLAG)
@@ -1830,6 +1833,8 @@
int fp_array_size;
u32 dump_preset_idx;
+ bool stats_started;
+ struct semaphore stats_sema;
};
/* Tx queues may be less or equal to Rx queues */
@@ -2451,4 +2456,6 @@
BNX2X_PCI_LINK_SPEED_5000 = 5000,
BNX2X_PCI_LINK_SPEED_8000 = 8000
};
+
+void bnx2x_set_local_cmng(struct bnx2x *bp);
#endif /* bnx2x.h */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index 0c94df4..fcf2761 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -30,10 +30,8 @@
#include "bnx2x_dcb.h"
/* forward declarations of dcbx related functions */
-static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
static void bnx2x_pfc_set_pfc(struct bnx2x *bp);
static void bnx2x_dcbx_update_ets_params(struct bnx2x *bp);
-static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
static void bnx2x_dcbx_get_ets_pri_pg_tbl(struct bnx2x *bp,
u32 *set_configuration_ets_pg,
u32 *pri_pg_tbl);
@@ -425,30 +423,52 @@
bnx2x_pfc_clear(bp);
}
-static int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
+int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp)
{
struct bnx2x_func_state_params func_params = {NULL};
+ int rc;
func_params.f_obj = &bp->func_obj;
func_params.cmd = BNX2X_F_CMD_TX_STOP;
+ __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
+ __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);
+
DP(BNX2X_MSG_DCB, "STOP TRAFFIC\n");
- return bnx2x_func_state_change(bp, &func_params);
+
+ rc = bnx2x_func_state_change(bp, &func_params);
+ if (rc) {
+ BNX2X_ERR("Unable to hold traffic for HW configuration\n");
+ bnx2x_panic();
+ }
+
+ return rc;
}
-static int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
+int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp)
{
struct bnx2x_func_state_params func_params = {NULL};
struct bnx2x_func_tx_start_params *tx_params =
&func_params.params.tx_start;
+ int rc;
func_params.f_obj = &bp->func_obj;
func_params.cmd = BNX2X_F_CMD_TX_START;
+ __set_bit(RAMROD_COMP_WAIT, &func_params.ramrod_flags);
+ __set_bit(RAMROD_RETRY, &func_params.ramrod_flags);
+
bnx2x_dcbx_fw_struct(bp, tx_params);
DP(BNX2X_MSG_DCB, "START TRAFFIC\n");
- return bnx2x_func_state_change(bp, &func_params);
+
+ rc = bnx2x_func_state_change(bp, &func_params);
+ if (rc) {
+ BNX2X_ERR("Unable to resume traffic after HW configuration\n");
+ bnx2x_panic();
+ }
+
+ return rc;
}
static void bnx2x_dcbx_2cos_limit_update_ets_config(struct bnx2x *bp)
@@ -744,7 +764,9 @@
if (IS_MF(bp))
bnx2x_link_sync_notify(bp);
- bnx2x_dcbx_stop_hw_tx(bp);
+ set_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state);
+
+ schedule_delayed_work(&bp->sp_rtnl_task, 0);
return;
}
@@ -753,7 +775,13 @@
bnx2x_pfc_set_pfc(bp);
bnx2x_dcbx_update_ets_params(bp);
- bnx2x_dcbx_resume_hw_tx(bp);
+
+ /* ets may affect cmng configuration: reinit it in hw */
+ bnx2x_set_local_cmng(bp);
+
+ set_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state);
+
+ schedule_delayed_work(&bp->sp_rtnl_task, 0);
return;
case BNX2X_DCBX_STATE_TX_RELEASED:
@@ -2363,21 +2391,24 @@
case DCB_FEATCFG_ATTR_PG:
if (bp->dcbx_local_feat.ets.enabled)
*flags |= DCB_FEATCFG_ENABLE;
- if (bp->dcbx_error & DCBX_LOCAL_ETS_ERROR)
+ if (bp->dcbx_error & (DCBX_LOCAL_ETS_ERROR |
+ DCBX_REMOTE_MIB_ERROR))
*flags |= DCB_FEATCFG_ERROR;
break;
case DCB_FEATCFG_ATTR_PFC:
if (bp->dcbx_local_feat.pfc.enabled)
*flags |= DCB_FEATCFG_ENABLE;
if (bp->dcbx_error & (DCBX_LOCAL_PFC_ERROR |
- DCBX_LOCAL_PFC_MISMATCH))
+ DCBX_LOCAL_PFC_MISMATCH |
+ DCBX_REMOTE_MIB_ERROR))
*flags |= DCB_FEATCFG_ERROR;
break;
case DCB_FEATCFG_ATTR_APP:
if (bp->dcbx_local_feat.app.enabled)
*flags |= DCB_FEATCFG_ENABLE;
if (bp->dcbx_error & (DCBX_LOCAL_APP_ERROR |
- DCBX_LOCAL_APP_MISMATCH))
+ DCBX_LOCAL_APP_MISMATCH |
+ DCBX_REMOTE_MIB_ERROR))
*flags |= DCB_FEATCFG_ERROR;
break;
default:
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h
index 125bd1b..804b8f6 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.h
@@ -199,4 +199,7 @@
int bnx2x_dcbnl_update_applist(struct bnx2x *bp, bool delall);
#endif /* BCM_DCBNL */
+int bnx2x_dcbx_stop_hw_tx(struct bnx2x *bp);
+int bnx2x_dcbx_resume_hw_tx(struct bnx2x *bp);
+
#endif /* BNX2X_DCB_H */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 5018e52..32767f6 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -1300,6 +1300,9 @@
#define DRV_MSG_CODE_EEE_RESULTS_ACK 0xda000000
+ #define DRV_MSG_CODE_RMMOD 0xdb000000
+ #define REQ_BC_VER_4_RMMOD_CMD 0x0007080f
+
#define DRV_MSG_CODE_SET_MF_BW 0xe0000000
#define REQ_BC_VER_4_SET_MF_BW 0x00060202
#define DRV_MSG_CODE_SET_MF_BW_ACK 0xe1000000
@@ -1372,6 +1375,8 @@
#define FW_MSG_CODE_EEE_RESULS_ACK 0xda100000
+ #define FW_MSG_CODE_RMMOD_ACK 0xdb100000
+
#define FW_MSG_CODE_SET_MF_BW_SENT 0xe0000000
#define FW_MSG_CODE_SET_MF_BW_DONE 0xe1000000
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index e06186c..8bdc8b9 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -2261,6 +2261,23 @@
bp->link_params.req_fc_auto_adv = BNX2X_FLOW_CTRL_BOTH;
}
+static void bnx2x_init_dropless_fc(struct bnx2x *bp)
+{
+ u32 pause_enabled = 0;
+
+ if (!CHIP_IS_E1(bp) && bp->dropless_fc && bp->link_vars.link_up) {
+ if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX)
+ pause_enabled = 1;
+
+ REG_WR(bp, BAR_USTRORM_INTMEM +
+ USTORM_ETH_PAUSE_ENABLED_OFFSET(BP_PORT(bp)),
+ pause_enabled);
+ }
+
+ DP(NETIF_MSG_IFUP | NETIF_MSG_LINK, "dropless_fc is %s\n",
+ pause_enabled ? "enabled" : "disabled");
+}
+
int bnx2x_initial_phy_init(struct bnx2x *bp, int load_mode)
{
int rc, cfx_idx = bnx2x_get_link_cfg_idx(bp);
@@ -2294,6 +2311,8 @@
bnx2x_release_phy_lock(bp);
+ bnx2x_init_dropless_fc(bp);
+
bnx2x_calc_fc_adv(bp);
if (bp->link_vars.link_up) {
@@ -2315,6 +2334,8 @@
bnx2x_phy_init(&bp->link_params, &bp->link_vars);
bnx2x_release_phy_lock(bp);
+ bnx2x_init_dropless_fc(bp);
+
bnx2x_calc_fc_adv(bp);
} else
BNX2X_ERR("Bootcode is missing - can not set link\n");
@@ -2476,7 +2497,7 @@
input.port_rate = bp->link_vars.line_speed;
- if (cmng_type == CMNG_FNS_MINMAX) {
+ if (cmng_type == CMNG_FNS_MINMAX && input.port_rate) {
int vn;
/* read mf conf from shmem */
@@ -2533,6 +2554,21 @@
}
}
+/* init cmng mode in HW according to local configuration */
+void bnx2x_set_local_cmng(struct bnx2x *bp)
+{
+ int cmng_fns = bnx2x_get_cmng_fns_mode(bp);
+
+ if (cmng_fns != CMNG_FNS_NONE) {
+ bnx2x_cmng_fns_init(bp, false, cmng_fns);
+ storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
+ } else {
+ /* rate shaping and fairness are disabled */
+ DP(NETIF_MSG_IFUP,
+ "single function mode without fairness\n");
+ }
+}
+
/* This function is called upon link interrupt */
static void bnx2x_link_attn(struct bnx2x *bp)
{
@@ -2541,21 +2577,10 @@
bnx2x_link_update(&bp->link_params, &bp->link_vars);
+ bnx2x_init_dropless_fc(bp);
+
if (bp->link_vars.link_up) {
- /* dropless flow control */
- if (!CHIP_IS_E1(bp) && bp->dropless_fc) {
- int port = BP_PORT(bp);
- u32 pause_enabled = 0;
-
- if (bp->link_vars.flow_ctrl & BNX2X_FLOW_CTRL_TX)
- pause_enabled = 1;
-
- REG_WR(bp, BAR_USTRORM_INTMEM +
- USTORM_ETH_PAUSE_ENABLED_OFFSET(port),
- pause_enabled);
- }
-
if (bp->link_vars.mac_type != MAC_TYPE_EMAC) {
struct host_port_stats *pstats;
@@ -2568,17 +2593,8 @@
bnx2x_stats_handle(bp, STATS_EVENT_LINK_UP);
}
- if (bp->link_vars.link_up && bp->link_vars.line_speed) {
- int cmng_fns = bnx2x_get_cmng_fns_mode(bp);
-
- if (cmng_fns != CMNG_FNS_NONE) {
- bnx2x_cmng_fns_init(bp, false, cmng_fns);
- storm_memset_cmng(bp, &bp->cmng, BP_PORT(bp));
- } else
- /* rate shaping and fairness are disabled */
- DP(NETIF_MSG_IFUP,
- "single function mode without fairness\n");
- }
+ if (bp->link_vars.link_up && bp->link_vars.line_speed)
+ bnx2x_set_local_cmng(bp);
__bnx2x_link_report(bp);
@@ -9639,6 +9655,12 @@
&bp->sp_rtnl_state))
bnx2x_pf_set_vfs_vlan(bp);
+ if (test_and_clear_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state))
+ bnx2x_dcbx_stop_hw_tx(bp);
+
+ if (test_and_clear_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state))
+ bnx2x_dcbx_resume_hw_tx(bp);
+
/* work which needs rtnl lock not-taken (as it takes the lock itself and
* can be called from other contexts as well)
*/
@@ -10362,6 +10384,10 @@
bp->flags |= (val >= REQ_BC_VER_4_DCBX_ADMIN_MSG_NON_PMF) ?
BC_SUPPORTS_DCBX_MSG_NON_PMF : 0;
+
+ bp->flags |= (val >= REQ_BC_VER_4_RMMOD_CMD) ?
+ BC_SUPPORTS_RMMOD_CMD : 0;
+
boot_mode = SHMEM_RD(bp,
dev_info.port_feature_config[BP_PORT(bp)].mba_config) &
PORT_FEATURE_MBA_BOOT_AGENT_TYPE_MASK;
@@ -11137,6 +11163,9 @@
int tmp;
u32 cfg;
+ if (IS_VF(bp))
+ return 0;
+
if (IS_MF(bp) && !CHIP_IS_E1x(bp)) {
/* Take function: tmp = func */
tmp = BP_ABS_FUNC(bp);
@@ -11524,6 +11553,7 @@
mutex_init(&bp->port.phy_mutex);
mutex_init(&bp->fw_mb_mutex);
spin_lock_init(&bp->stats_lock);
+ sema_init(&bp->stats_sema, 1);
INIT_DELAYED_WORK(&bp->sp_task, bnx2x_sp_task);
INIT_DELAYED_WORK(&bp->sp_rtnl_task, bnx2x_sp_rtnl_task);
@@ -12817,13 +12847,17 @@
bnx2x_dcbnl_update_applist(bp, true);
#endif
+ if (IS_PF(bp) &&
+ !BP_NOMCP(bp) &&
+ (bp->flags & BC_SUPPORTS_RMMOD_CMD))
+ bnx2x_fw_command(bp, DRV_MSG_CODE_RMMOD, 0);
+
/* Close the interface - either directly or implicitly */
if (remove_netdev) {
unregister_netdev(dev);
} else {
rtnl_lock();
- if (netif_running(dev))
- bnx2x_close(dev);
+ dev_close(dev);
rtnl_unlock();
}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 95861ef..ad83f4b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -1747,11 +1747,8 @@
void bnx2x_iov_init_dmae(struct bnx2x *bp)
{
- DP(BNX2X_MSG_IOV, "SRIOV is %s\n", IS_SRIOV(bp) ? "ON" : "OFF");
- if (!IS_SRIOV(bp))
- return;
-
- REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
+ if (pci_find_ext_capability(bp->pdev, PCI_EXT_CAP_ID_SRIOV))
+ REG_WR(bp, DMAE_REG_BACKWARD_COMP_EN, 0);
}
static int bnx2x_vf_bus(struct bnx2x *bp, int vfid)
@@ -3084,8 +3081,9 @@
pci_disable_sriov(bp->pdev);
}
-static int bnx2x_vf_ndo_sanity(struct bnx2x *bp, int vfidx,
- struct bnx2x_virtf *vf)
+static int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx,
+ struct bnx2x_virtf **vf,
+ struct pf_vf_bulletin_content **bulletin)
{
if (bp->state != BNX2X_STATE_OPEN) {
BNX2X_ERR("vf ndo called though PF is down\n");
@@ -3103,12 +3101,22 @@
return -EINVAL;
}
- if (!vf) {
+ /* init members */
+ *vf = BP_VF(bp, vfidx);
+ *bulletin = BP_VF_BULLETIN(bp, vfidx);
+
+ if (!*vf) {
BNX2X_ERR("vf ndo called but vf was null. vfidx was %d\n",
vfidx);
return -EINVAL;
}
+ if (!*bulletin) {
+ BNX2X_ERR("vf ndo called but Bulletin Board struct is null. vfidx was %d\n",
+ vfidx);
+ return -EINVAL;
+ }
+
return 0;
}
@@ -3116,17 +3124,19 @@
struct ifla_vf_info *ivi)
{
struct bnx2x *bp = netdev_priv(dev);
- struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
- struct bnx2x_vlan_mac_obj *mac_obj = &bnx2x_vfq(vf, 0, mac_obj);
- struct bnx2x_vlan_mac_obj *vlan_obj = &bnx2x_vfq(vf, 0, vlan_obj);
- struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
+ struct bnx2x_virtf *vf = NULL;
+ struct pf_vf_bulletin_content *bulletin = NULL;
+ struct bnx2x_vlan_mac_obj *mac_obj;
+ struct bnx2x_vlan_mac_obj *vlan_obj;
int rc;
- /* sanity */
- rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
+ /* sanity and init */
+ rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
if (rc)
return rc;
- if (!mac_obj || !vlan_obj || !bulletin) {
+ mac_obj = &bnx2x_vfq(vf, 0, mac_obj);
+ vlan_obj = &bnx2x_vfq(vf, 0, vlan_obj);
+ if (!mac_obj || !vlan_obj) {
BNX2X_ERR("VF partially initialized\n");
return -EINVAL;
}
@@ -3183,11 +3193,11 @@
{
struct bnx2x *bp = netdev_priv(dev);
int rc, q_logical_state;
- struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
- struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
+ struct bnx2x_virtf *vf = NULL;
+ struct pf_vf_bulletin_content *bulletin = NULL;
- /* sanity */
- rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
+ /* sanity and init */
+ rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
if (rc)
return rc;
if (!is_valid_ether_addr(mac)) {
@@ -3249,11 +3259,11 @@
{
struct bnx2x *bp = netdev_priv(dev);
int rc, q_logical_state;
- struct bnx2x_virtf *vf = BP_VF(bp, vfidx);
- struct pf_vf_bulletin_content *bulletin = BP_VF_BULLETIN(bp, vfidx);
+ struct bnx2x_virtf *vf = NULL;
+ struct pf_vf_bulletin_content *bulletin = NULL;
- /* sanity */
- rc = bnx2x_vf_ndo_sanity(bp, vfidx, vf);
+ /* sanity and init */
+ rc = bnx2x_vf_ndo_prep(bp, vfidx, &vf, &bulletin);
if (rc)
return rc;
@@ -3463,7 +3473,7 @@
alloc_mem_err:
BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
sizeof(struct bnx2x_vf_mbx_msg));
- BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->vf2pf_mbox_mapping,
+ BNX2X_PCI_FREE(bp->vf2pf_mbox, bp->pf2vf_bulletin_mapping,
sizeof(union pf_vf_bulletin));
return -ENOMEM;
}
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
index 98366ab..d63d132 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.c
@@ -221,7 +221,8 @@
* Statistics service functions
*/
-static void bnx2x_stats_pmf_update(struct bnx2x *bp)
+/* should be called under stats_sema */
+static void __bnx2x_stats_pmf_update(struct bnx2x *bp)
{
struct dmae_command *dmae;
u32 opcode;
@@ -518,7 +519,8 @@
*stats_comp = 0;
}
-static void bnx2x_stats_start(struct bnx2x *bp)
+/* should be called under stats_sema */
+static void __bnx2x_stats_start(struct bnx2x *bp)
{
/* vfs travel through here as part of the statistics FSM, but no action
* is required
@@ -534,13 +536,34 @@
bnx2x_hw_stats_post(bp);
bnx2x_storm_stats_post(bp);
+
+ bp->stats_started = true;
+}
+
+static void bnx2x_stats_start(struct bnx2x *bp)
+{
+ if (down_timeout(&bp->stats_sema, HZ/10))
+ BNX2X_ERR("Unable to acquire stats lock\n");
+ __bnx2x_stats_start(bp);
+ up(&bp->stats_sema);
}
static void bnx2x_stats_pmf_start(struct bnx2x *bp)
{
+ if (down_timeout(&bp->stats_sema, HZ/10))
+ BNX2X_ERR("Unable to acquire stats lock\n");
bnx2x_stats_comp(bp);
- bnx2x_stats_pmf_update(bp);
- bnx2x_stats_start(bp);
+ __bnx2x_stats_pmf_update(bp);
+ __bnx2x_stats_start(bp);
+ up(&bp->stats_sema);
+}
+
+static void bnx2x_stats_pmf_update(struct bnx2x *bp)
+{
+ if (down_timeout(&bp->stats_sema, HZ/10))
+ BNX2X_ERR("Unable to acquire stats lock\n");
+ __bnx2x_stats_pmf_update(bp);
+ up(&bp->stats_sema);
}
static void bnx2x_stats_restart(struct bnx2x *bp)
@@ -550,8 +573,11 @@
*/
if (IS_VF(bp))
return;
+ if (down_timeout(&bp->stats_sema, HZ/10))
+ BNX2X_ERR("Unable to acquire stats lock\n");
bnx2x_stats_comp(bp);
- bnx2x_stats_start(bp);
+ __bnx2x_stats_start(bp);
+ up(&bp->stats_sema);
}
static void bnx2x_bmac_stats_update(struct bnx2x *bp)
@@ -888,9 +914,7 @@
/* Make sure we use the value of the counter
* used for sending the last stats ramrod.
*/
- spin_lock_bh(&bp->stats_lock);
cur_stats_counter = bp->stats_counter - 1;
- spin_unlock_bh(&bp->stats_lock);
/* are storm stats valid? */
if (le16_to_cpu(counters->xstats_counter) != cur_stats_counter) {
@@ -1227,12 +1251,18 @@
{
u32 *stats_comp = bnx2x_sp(bp, stats_comp);
- if (bnx2x_edebug_stats_stopped(bp))
+ /* we run update from timer context, so give up
+ * if somebody is in the middle of transition
+ */
+ if (down_trylock(&bp->stats_sema))
return;
+ if (bnx2x_edebug_stats_stopped(bp) || !bp->stats_started)
+ goto out;
+
if (IS_PF(bp)) {
if (*stats_comp != DMAE_COMP_VAL)
- return;
+ goto out;
if (bp->port.pmf)
bnx2x_hw_stats_update(bp);
@@ -1242,7 +1272,7 @@
BNX2X_ERR("storm stats were not updated for 3 times\n");
bnx2x_panic();
}
- return;
+ goto out;
}
} else {
/* vf doesn't collect HW statistics, and doesn't get completions
@@ -1256,7 +1286,7 @@
/* vf is done */
if (IS_VF(bp))
- return;
+ goto out;
if (netif_msg_timer(bp)) {
struct bnx2x_eth_stats *estats = &bp->eth_stats;
@@ -1267,6 +1297,9 @@
bnx2x_hw_stats_post(bp);
bnx2x_storm_stats_post(bp);
+
+out:
+ up(&bp->stats_sema);
}
static void bnx2x_port_stats_stop(struct bnx2x *bp)
@@ -1332,6 +1365,11 @@
{
int update = 0;
+ if (down_timeout(&bp->stats_sema, HZ/10))
+ BNX2X_ERR("Unable to acquire stats lock\n");
+
+ bp->stats_started = false;
+
bnx2x_stats_comp(bp);
if (bp->port.pmf)
@@ -1348,6 +1386,8 @@
bnx2x_hw_stats_post(bp);
bnx2x_stats_comp(bp);
}
+
+ up(&bp->stats_sema);
}
static void bnx2x_stats_do_nothing(struct bnx2x *bp)
@@ -1376,15 +1416,17 @@
void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event)
{
enum bnx2x_stats_state state;
+ void (*action)(struct bnx2x *bp);
if (unlikely(bp->panic))
return;
spin_lock_bh(&bp->stats_lock);
state = bp->stats_state;
bp->stats_state = bnx2x_stats_stm[state][event].next_state;
+ action = bnx2x_stats_stm[state][event].action;
spin_unlock_bh(&bp->stats_lock);
- bnx2x_stats_stm[state][event].action(bp);
+ action(bp);
if ((event != STATS_EVENT_UPDATE) || netif_msg_timer(bp))
DP(BNX2X_MSG_STATS, "state %d -> event %d -> state %d\n",
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index ddebc7a..0da2214 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -17796,8 +17796,10 @@
done:
if (state == pci_channel_io_perm_failure) {
- tg3_napi_enable(tp);
- dev_close(netdev);
+ if (netdev) {
+ tg3_napi_enable(tp);
+ dev_close(netdev);
+ }
err = PCI_ERS_RESULT_DISCONNECT;
} else {
pci_disable_device(pdev);
@@ -17827,7 +17829,8 @@
rtnl_lock();
if (pci_enable_device(pdev)) {
- netdev_err(netdev, "Cannot re-enable PCI device after reset.\n");
+ dev_err(&pdev->dev,
+ "Cannot re-enable PCI device after reset.\n");
goto done;
}
@@ -17835,7 +17838,7 @@
pci_restore_state(pdev);
pci_save_state(pdev);
- if (!netif_running(netdev)) {
+ if (!netdev || !netif_running(netdev)) {
rc = PCI_ERS_RESULT_RECOVERED;
goto done;
}
@@ -17847,7 +17850,7 @@
rc = PCI_ERS_RESULT_RECOVERED;
done:
- if (rc != PCI_ERS_RESULT_RECOVERED && netif_running(netdev)) {
+ if (rc != PCI_ERS_RESULT_RECOVERED && netdev && netif_running(netdev)) {
tg3_napi_enable(tp);
dev_close(netdev);
}
diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index 687ec4a..9c89dc8 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -455,11 +455,6 @@
q->pg_chunk.offset = 0;
mapping = pci_map_page(adapter->pdev, q->pg_chunk.page,
0, q->alloc_size, PCI_DMA_FROMDEVICE);
- if (unlikely(pci_dma_mapping_error(adapter->pdev, mapping))) {
- __free_pages(q->pg_chunk.page, order);
- q->pg_chunk.page = NULL;
- return -EIO;
- }
q->pg_chunk.mapping = mapping;
}
sd->pg_chunk = q->pg_chunk;
@@ -954,75 +949,40 @@
return flits_to_desc(flits);
}
-
-/* map_skb - map a packet main body and its page fragments
- * @pdev: the PCI device
- * @skb: the packet
- * @addr: placeholder to save the mapped addresses
- *
- * map the main body of an sk_buff and its page fragments, if any.
- */
-static int map_skb(struct pci_dev *pdev, const struct sk_buff *skb,
- dma_addr_t *addr)
-{
- const skb_frag_t *fp, *end;
- const struct skb_shared_info *si;
-
- *addr = pci_map_single(pdev, skb->data, skb_headlen(skb),
- PCI_DMA_TODEVICE);
- if (pci_dma_mapping_error(pdev, *addr))
- goto out_err;
-
- si = skb_shinfo(skb);
- end = &si->frags[si->nr_frags];
-
- for (fp = si->frags; fp < end; fp++) {
- *++addr = skb_frag_dma_map(&pdev->dev, fp, 0, skb_frag_size(fp),
- DMA_TO_DEVICE);
- if (pci_dma_mapping_error(pdev, *addr))
- goto unwind;
- }
- return 0;
-
-unwind:
- while (fp-- > si->frags)
- dma_unmap_page(&pdev->dev, *--addr, skb_frag_size(fp),
- DMA_TO_DEVICE);
-
- pci_unmap_single(pdev, addr[-1], skb_headlen(skb), PCI_DMA_TODEVICE);
-out_err:
- return -ENOMEM;
-}
-
/**
- * write_sgl - populate a scatter/gather list for a packet
+ * make_sgl - populate a scatter/gather list for a packet
* @skb: the packet
* @sgp: the SGL to populate
* @start: start address of skb main body data to include in the SGL
* @len: length of skb main body data to include in the SGL
- * @addr: the list of the mapped addresses
+ * @pdev: the PCI device
*
- * Copies the scatter/gather list for the buffers that make up a packet
+ * Generates a scatter/gather list for the buffers that make up a packet
* and returns the SGL size in 8-byte words. The caller must size the SGL
* appropriately.
*/
-static inline unsigned int write_sgl(const struct sk_buff *skb,
+static inline unsigned int make_sgl(const struct sk_buff *skb,
struct sg_ent *sgp, unsigned char *start,
- unsigned int len, const dma_addr_t *addr)
+ unsigned int len, struct pci_dev *pdev)
{
- unsigned int i, j = 0, k = 0, nfrags;
+ dma_addr_t mapping;
+ unsigned int i, j = 0, nfrags;
if (len) {
+ mapping = pci_map_single(pdev, start, len, PCI_DMA_TODEVICE);
sgp->len[0] = cpu_to_be32(len);
- sgp->addr[j++] = cpu_to_be64(addr[k++]);
+ sgp->addr[0] = cpu_to_be64(mapping);
+ j = 1;
}
nfrags = skb_shinfo(skb)->nr_frags;
for (i = 0; i < nfrags; i++) {
const skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+ mapping = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
+ DMA_TO_DEVICE);
sgp->len[j] = cpu_to_be32(skb_frag_size(frag));
- sgp->addr[j] = cpu_to_be64(addr[k++]);
+ sgp->addr[j] = cpu_to_be64(mapping);
j ^= 1;
if (j == 0)
++sgp;
@@ -1178,7 +1138,7 @@
const struct port_info *pi,
unsigned int pidx, unsigned int gen,
struct sge_txq *q, unsigned int ndesc,
- unsigned int compl, const dma_addr_t *addr)
+ unsigned int compl)
{
unsigned int flits, sgl_flits, cntrl, tso_info;
struct sg_ent *sgp, sgl[MAX_SKB_FRAGS / 2 + 1];
@@ -1236,7 +1196,7 @@
}
sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
- sgl_flits = write_sgl(skb, sgp, skb->data, skb_headlen(skb), addr);
+ sgl_flits = make_sgl(skb, sgp, skb->data, skb_headlen(skb), adap->pdev);
write_wr_hdr_sgl(ndesc, skb, d, pidx, q, sgl, flits, sgl_flits, gen,
htonl(V_WR_OP(FW_WROPCODE_TUNNEL_TX_PKT) | compl),
@@ -1267,7 +1227,6 @@
struct netdev_queue *txq;
struct sge_qset *qs;
struct sge_txq *q;
- dma_addr_t addr[MAX_SKB_FRAGS + 1];
/*
* The chip min packet length is 9 octets but play safe and reject
@@ -1296,11 +1255,6 @@
return NETDEV_TX_BUSY;
}
- if (unlikely(map_skb(adap->pdev, skb, addr) < 0)) {
- dev_kfree_skb(skb);
- return NETDEV_TX_OK;
- }
-
q->in_use += ndesc;
if (unlikely(credits - ndesc < q->stop_thres)) {
t3_stop_tx_queue(txq, qs, q);
@@ -1358,7 +1312,7 @@
if (likely(!skb_shared(skb)))
skb_orphan(skb);
- write_tx_pkt_wr(adap, skb, pi, pidx, gen, q, ndesc, compl, addr);
+ write_tx_pkt_wr(adap, skb, pi, pidx, gen, q, ndesc, compl);
check_ring_tx_db(adap, q);
return NETDEV_TX_OK;
}
@@ -1623,8 +1577,7 @@
*/
static void write_ofld_wr(struct adapter *adap, struct sk_buff *skb,
struct sge_txq *q, unsigned int pidx,
- unsigned int gen, unsigned int ndesc,
- const dma_addr_t *addr)
+ unsigned int gen, unsigned int ndesc)
{
unsigned int sgl_flits, flits;
struct work_request_hdr *from;
@@ -1645,9 +1598,9 @@
flits = skb_transport_offset(skb) / 8;
sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
- sgl_flits = write_sgl(skb, sgp, skb_transport_header(skb),
- skb_tail_pointer(skb) -
- skb_transport_header(skb), addr);
+ sgl_flits = make_sgl(skb, sgp, skb_transport_header(skb),
+ skb->tail - skb->transport_header,
+ adap->pdev);
if (need_skb_unmap()) {
setup_deferred_unmapping(skb, adap->pdev, sgp, sgl_flits);
skb->destructor = deferred_unmap_destructor;
@@ -1705,11 +1658,6 @@
goto again;
}
- if (map_skb(adap->pdev, skb, (dma_addr_t *)skb->head)) {
- spin_unlock(&q->lock);
- return NET_XMIT_SUCCESS;
- }
-
gen = q->gen;
q->in_use += ndesc;
pidx = q->pidx;
@@ -1720,7 +1668,7 @@
}
spin_unlock(&q->lock);
- write_ofld_wr(adap, skb, q, pidx, gen, ndesc, (dma_addr_t *)skb->head);
+ write_ofld_wr(adap, skb, q, pidx, gen, ndesc);
check_ring_tx_db(adap, q);
return NET_XMIT_SUCCESS;
}
@@ -1738,7 +1686,6 @@
struct sge_txq *q = &qs->txq[TXQ_OFLD];
const struct port_info *pi = netdev_priv(qs->netdev);
struct adapter *adap = pi->adapter;
- unsigned int written = 0;
spin_lock(&q->lock);
again: reclaim_completed_tx(adap, q, TX_RECLAIM_CHUNK);
@@ -1758,14 +1705,10 @@
break;
}
- if (map_skb(adap->pdev, skb, (dma_addr_t *)skb->head))
- break;
-
gen = q->gen;
q->in_use += ndesc;
pidx = q->pidx;
q->pidx += ndesc;
- written += ndesc;
if (q->pidx >= q->size) {
q->pidx -= q->size;
q->gen ^= 1;
@@ -1773,8 +1716,7 @@
__skb_unlink(skb, &q->sendq);
spin_unlock(&q->lock);
- write_ofld_wr(adap, skb, q, pidx, gen, ndesc,
- (dma_addr_t *)skb->head);
+ write_ofld_wr(adap, skb, q, pidx, gen, ndesc);
spin_lock(&q->lock);
}
spin_unlock(&q->lock);
@@ -1784,9 +1726,8 @@
set_bit(TXQ_LAST_PKT_DB, &q->flags);
#endif
wmb();
- if (likely(written))
- t3_write_reg(adap, A_SG_KDOORBELL,
- F_SELEGRCNTX | V_EGRCNTX(q->cntxt_id));
+ t3_write_reg(adap, A_SG_KDOORBELL,
+ F_SELEGRCNTX | V_EGRCNTX(q->cntxt_id));
}
/**
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 6e6e0a1..8ec5d74 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -3048,6 +3048,9 @@
adapter->max_event_queues = le16_to_cpu(desc->eq_count);
adapter->if_cap_flags = le32_to_cpu(desc->cap_flags);
+
+ /* Clear flags that driver is not interested in */
+ adapter->if_cap_flags &= BE_IF_CAP_FLAGS_WANT;
}
err:
mutex_unlock(&adapter->mbox_lock);
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 5228d88..1b3b9e8 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -563,6 +563,12 @@
BE_IF_FLAGS_MULTICAST = 0x1000
};
+#define BE_IF_CAP_FLAGS_WANT (BE_IF_FLAGS_RSS | BE_IF_FLAGS_PROMISCUOUS |\
+ BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_VLAN_PROMISCUOUS |\
+ BE_IF_FLAGS_VLAN | BE_IF_FLAGS_MCAST_PROMISCUOUS |\
+ BE_IF_FLAGS_PASS_L3L4_ERRORS | BE_IF_FLAGS_MULTICAST |\
+ BE_IF_FLAGS_UNTAGGED)
+
/* An RX interface is an object with one or more MAC addresses and
* filtering capabilities. */
struct be_cmd_req_if_create {
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 181edb5..4559c35 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2563,8 +2563,8 @@
/* Wait for all pending tx completions to arrive so that
* all tx skbs are freed.
*/
- be_tx_compl_clean(adapter);
netif_tx_disable(netdev);
+ be_tx_compl_clean(adapter);
be_rx_qs_destroy(adapter);
diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c
index c896079..ef94a59 100644
--- a/drivers/net/ethernet/marvell/skge.c
+++ b/drivers/net/ethernet/marvell/skge.c
@@ -931,17 +931,20 @@
}
/* Allocate and setup a new buffer for receiving */
-static void skge_rx_setup(struct skge_port *skge, struct skge_element *e,
- struct sk_buff *skb, unsigned int bufsize)
+static int skge_rx_setup(struct skge_port *skge, struct skge_element *e,
+ struct sk_buff *skb, unsigned int bufsize)
{
struct skge_rx_desc *rd = e->desc;
- u64 map;
+ dma_addr_t map;
map = pci_map_single(skge->hw->pdev, skb->data, bufsize,
PCI_DMA_FROMDEVICE);
- rd->dma_lo = map;
- rd->dma_hi = map >> 32;
+ if (pci_dma_mapping_error(skge->hw->pdev, map))
+ return -1;
+
+ rd->dma_lo = lower_32_bits(map);
+ rd->dma_hi = upper_32_bits(map);
e->skb = skb;
rd->csum1_start = ETH_HLEN;
rd->csum2_start = ETH_HLEN;
@@ -953,6 +956,7 @@
rd->control = BMU_OWN | BMU_STF | BMU_IRQ_EOF | BMU_TCP_CHECK | bufsize;
dma_unmap_addr_set(e, mapaddr, map);
dma_unmap_len_set(e, maplen, bufsize);
+ return 0;
}
/* Resume receiving using existing skb,
@@ -1014,7 +1018,10 @@
return -ENOMEM;
skb_reserve(skb, NET_IP_ALIGN);
- skge_rx_setup(skge, e, skb, skge->rx_buf_size);
+ if (skge_rx_setup(skge, e, skb, skge->rx_buf_size) < 0) {
+ dev_kfree_skb(skb);
+ return -EIO;
+ }
} while ((e = e->next) != ring->start);
ring->to_clean = ring->start;
@@ -2544,7 +2551,7 @@
BUG_ON(skge->dma & 7);
- if ((u64)skge->dma >> 32 != ((u64) skge->dma + skge->mem_size) >> 32) {
+ if (upper_32_bits(skge->dma) != upper_32_bits(skge->dma + skge->mem_size)) {
dev_err(&hw->pdev->dev, "pci_alloc_consistent region crosses 4G boundary\n");
err = -EINVAL;
goto free_pci_mem;
@@ -2729,7 +2736,7 @@
struct skge_tx_desc *td;
int i;
u32 control, len;
- u64 map;
+ dma_addr_t map;
if (skb_padto(skb, ETH_ZLEN))
return NETDEV_TX_OK;
@@ -2743,11 +2750,14 @@
e->skb = skb;
len = skb_headlen(skb);
map = pci_map_single(hw->pdev, skb->data, len, PCI_DMA_TODEVICE);
+ if (pci_dma_mapping_error(hw->pdev, map))
+ goto mapping_error;
+
dma_unmap_addr_set(e, mapaddr, map);
dma_unmap_len_set(e, maplen, len);
- td->dma_lo = map;
- td->dma_hi = map >> 32;
+ td->dma_lo = lower_32_bits(map);
+ td->dma_hi = upper_32_bits(map);
if (skb->ip_summed == CHECKSUM_PARTIAL) {
const int offset = skb_checksum_start_offset(skb);
@@ -2778,14 +2788,16 @@
map = skb_frag_dma_map(&hw->pdev->dev, frag, 0,
skb_frag_size(frag), DMA_TO_DEVICE);
+ if (dma_mapping_error(&hw->pdev->dev, map))
+ goto mapping_unwind;
e = e->next;
e->skb = skb;
tf = e->desc;
BUG_ON(tf->control & BMU_OWN);
- tf->dma_lo = map;
- tf->dma_hi = (u64) map >> 32;
+ tf->dma_lo = lower_32_bits(map);
+ tf->dma_hi = upper_32_bits(map);
dma_unmap_addr_set(e, mapaddr, map);
dma_unmap_len_set(e, maplen, skb_frag_size(frag));
@@ -2815,6 +2827,26 @@
}
return NETDEV_TX_OK;
+
+mapping_unwind:
+ e = skge->tx_ring.to_use;
+ pci_unmap_single(hw->pdev,
+ dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_TODEVICE);
+ while (i-- > 0) {
+ e = e->next;
+ pci_unmap_page(hw->pdev,
+ dma_unmap_addr(e, mapaddr),
+ dma_unmap_len(e, maplen),
+ PCI_DMA_TODEVICE);
+ }
+
+mapping_error:
+ if (net_ratelimit())
+ dev_warn(&hw->pdev->dev, "%s: tx mapping error\n", dev->name);
+ dev_kfree_skb(skb);
+ return NETDEV_TX_OK;
}
@@ -3045,11 +3077,13 @@
pci_dma_sync_single_for_cpu(skge->hw->pdev,
dma_unmap_addr(e, mapaddr),
- len, PCI_DMA_FROMDEVICE);
+ dma_unmap_len(e, maplen),
+ PCI_DMA_FROMDEVICE);
skb_copy_from_linear_data(e->skb, skb->data, len);
pci_dma_sync_single_for_device(skge->hw->pdev,
dma_unmap_addr(e, mapaddr),
- len, PCI_DMA_FROMDEVICE);
+ dma_unmap_len(e, maplen),
+ PCI_DMA_FROMDEVICE);
skge_rx_reuse(e, skge->rx_buf_size);
} else {
struct sk_buff *nskb;
@@ -3058,13 +3092,17 @@
if (!nskb)
goto resubmit;
+ if (skge_rx_setup(skge, e, nskb, skge->rx_buf_size) < 0) {
+ dev_kfree_skb(nskb);
+ goto resubmit;
+ }
+
pci_unmap_single(skge->hw->pdev,
dma_unmap_addr(e, mapaddr),
dma_unmap_len(e, maplen),
PCI_DMA_FROMDEVICE);
skb = e->skb;
prefetch(skb->data);
- skge_rx_setup(skge, e, nskb, skge->rx_buf_size);
}
skb_put(skb, len);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index c571de8..5472cbd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -46,7 +46,7 @@
#include "mlx5_core.h"
enum {
- CMD_IF_REV = 4,
+ CMD_IF_REV = 5,
};
enum {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index c02cbcf..443cc4d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -268,7 +268,7 @@
case MLX5_EVENT_TYPE_PAGE_REQUEST:
{
u16 func_id = be16_to_cpu(eqe->data.req_pages.func_id);
- s16 npages = be16_to_cpu(eqe->data.req_pages.num_pages);
+ s32 npages = be32_to_cpu(eqe->data.req_pages.num_pages);
mlx5_core_dbg(dev, "page request for func 0x%x, napges %d\n", func_id, npages);
mlx5_core_req_pages_handler(dev, func_id, npages);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fw.c b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
index 72a5222..f012658 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fw.c
@@ -113,7 +113,7 @@
caps->log_max_srq = out->hca_cap.log_max_srqs & 0x1f;
caps->local_ca_ack_delay = out->hca_cap.local_ca_ack_delay & 0x1f;
caps->log_max_mcg = out->hca_cap.log_max_mcg;
- caps->max_qp_mcg = be16_to_cpu(out->hca_cap.max_qp_mcg);
+ caps->max_qp_mcg = be32_to_cpu(out->hca_cap.max_qp_mcg) & 0xffffff;
caps->max_ra_res_qp = 1 << (out->hca_cap.log_max_ra_res_qp & 0x3f);
caps->max_ra_req_qp = 1 << (out->hca_cap.log_max_ra_req_qp & 0x3f);
caps->max_srq_wqes = 1 << out->hca_cap.log_max_srq_sz;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 748f10a..3e6670c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -55,33 +55,9 @@
};
static DEFINE_SPINLOCK(health_lock);
-
static LIST_HEAD(health_list);
static struct work_struct health_work;
-static health_handler_t reg_handler;
-int mlx5_register_health_report_handler(health_handler_t handler)
-{
- spin_lock_irq(&health_lock);
- if (reg_handler) {
- spin_unlock_irq(&health_lock);
- return -EEXIST;
- }
- reg_handler = handler;
- spin_unlock_irq(&health_lock);
-
- return 0;
-}
-EXPORT_SYMBOL(mlx5_register_health_report_handler);
-
-void mlx5_unregister_health_report_handler(void)
-{
- spin_lock_irq(&health_lock);
- reg_handler = NULL;
- spin_unlock_irq(&health_lock);
-}
-EXPORT_SYMBOL(mlx5_unregister_health_report_handler);
-
static void health_care(struct work_struct *work)
{
struct mlx5_core_health *health, *n;
@@ -98,11 +74,8 @@
priv = container_of(health, struct mlx5_priv, health);
dev = container_of(priv, struct mlx5_core_dev, priv);
mlx5_core_warn(dev, "handling bad device here\n");
+ /* nothing yet */
spin_lock_irq(&health_lock);
- if (reg_handler)
- reg_handler(dev->pdev, health->health,
- sizeof(health->health));
-
list_del_init(&health->list);
spin_unlock_irq(&health_lock);
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index 4a3e137..3a2408d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -43,10 +43,16 @@
MLX5_PAGES_TAKE = 2
};
+enum {
+ MLX5_BOOT_PAGES = 1,
+ MLX5_INIT_PAGES = 2,
+ MLX5_POST_INIT_PAGES = 3
+};
+
struct mlx5_pages_req {
struct mlx5_core_dev *dev;
u32 func_id;
- s16 npages;
+ s32 npages;
struct work_struct work;
};
@@ -64,27 +70,23 @@
struct mlx5_query_pages_outbox {
struct mlx5_outbox_hdr hdr;
- __be16 num_boot_pages;
+ __be16 rsvd;
__be16 func_id;
- __be16 init_pages;
- __be16 num_pages;
+ __be32 num_pages;
};
struct mlx5_manage_pages_inbox {
struct mlx5_inbox_hdr hdr;
- __be16 rsvd0;
+ __be16 rsvd;
__be16 func_id;
- __be16 rsvd1;
- __be16 num_entries;
- u8 rsvd2[16];
+ __be32 num_entries;
__be64 pas[0];
};
struct mlx5_manage_pages_outbox {
struct mlx5_outbox_hdr hdr;
- u8 rsvd0[2];
- __be16 num_entries;
- u8 rsvd1[20];
+ __be32 num_entries;
+ u8 rsvd[4];
__be64 pas[0];
};
@@ -146,7 +148,7 @@
}
static int mlx5_cmd_query_pages(struct mlx5_core_dev *dev, u16 *func_id,
- s16 *pages, s16 *init_pages, u16 *boot_pages)
+ s32 *npages, int boot)
{
struct mlx5_query_pages_inbox in;
struct mlx5_query_pages_outbox out;
@@ -155,6 +157,8 @@
memset(&in, 0, sizeof(in));
memset(&out, 0, sizeof(out));
in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_PAGES);
+ in.hdr.opmod = boot ? cpu_to_be16(MLX5_BOOT_PAGES) : cpu_to_be16(MLX5_INIT_PAGES);
+
err = mlx5_cmd_exec(dev, &in, sizeof(in), &out, sizeof(out));
if (err)
return err;
@@ -162,15 +166,7 @@
if (out.hdr.status)
return mlx5_cmd_status_to_err(&out.hdr);
- if (pages)
- *pages = be16_to_cpu(out.num_pages);
-
- if (init_pages)
- *init_pages = be16_to_cpu(out.init_pages);
-
- if (boot_pages)
- *boot_pages = be16_to_cpu(out.num_boot_pages);
-
+ *npages = be32_to_cpu(out.num_pages);
*func_id = be16_to_cpu(out.func_id);
return err;
@@ -224,7 +220,7 @@
in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MANAGE_PAGES);
in->hdr.opmod = cpu_to_be16(MLX5_PAGES_GIVE);
in->func_id = cpu_to_be16(func_id);
- in->num_entries = cpu_to_be16(npages);
+ in->num_entries = cpu_to_be32(npages);
err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));
mlx5_core_dbg(dev, "err %d\n", err);
if (err) {
@@ -292,7 +288,7 @@
in.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MANAGE_PAGES);
in.hdr.opmod = cpu_to_be16(MLX5_PAGES_TAKE);
in.func_id = cpu_to_be16(func_id);
- in.num_entries = cpu_to_be16(npages);
+ in.num_entries = cpu_to_be32(npages);
mlx5_core_dbg(dev, "npages %d, outlen %d\n", npages, outlen);
err = mlx5_cmd_exec(dev, &in, sizeof(in), out, outlen);
if (err) {
@@ -306,7 +302,7 @@
goto out_free;
}
- num_claimed = be16_to_cpu(out->num_entries);
+ num_claimed = be32_to_cpu(out->num_entries);
if (nclaimed)
*nclaimed = num_claimed;
@@ -345,7 +341,7 @@
}
void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
- s16 npages)
+ s32 npages)
{
struct mlx5_pages_req *req;
@@ -364,20 +360,18 @@
int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot)
{
- u16 uninitialized_var(boot_pages);
- s16 uninitialized_var(init_pages);
u16 uninitialized_var(func_id);
+ s32 uninitialized_var(npages);
int err;
- err = mlx5_cmd_query_pages(dev, &func_id, NULL, &init_pages,
- &boot_pages);
+ err = mlx5_cmd_query_pages(dev, &func_id, &npages, boot);
if (err)
return err;
+ mlx5_core_dbg(dev, "requested %d %s pages for func_id 0x%x\n",
+ npages, boot ? "boot" : "init", func_id);
- mlx5_core_dbg(dev, "requested %d init pages and %d boot pages for func_id 0x%x\n",
- init_pages, boot_pages, func_id);
- return give_pages(dev, func_id, boot ? boot_pages : init_pages, 0);
+ return give_pages(dev, func_id, npages, 0);
}
static int optimal_reclaimed_pages(void)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 92da998..9d4bb7f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -3266,6 +3266,11 @@
u8 val;
int ret, max_sds_rings = adapter->max_sds_rings;
+ if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
+ netdev_info(netdev, "Device is resetting\n");
+ return -EBUSY;
+ }
+
if (qlcnic_get_diag_lock(adapter)) {
netdev_info(netdev, "Device in diagnostics mode\n");
return -EBUSY;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index 9f4b8d5..345d987 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -629,7 +629,8 @@
return -EIO;
}
- qlcnic_set_drv_version(adapter);
+ if (adapter->portnum == 0)
+ qlcnic_set_drv_version(adapter);
qlcnic_83xx_idc_attach_driver(adapter);
return 0;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index ee013fc..bc05d01 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -2165,7 +2165,8 @@
if (err)
goto err_out_disable_mbx_intr;
- qlcnic_set_drv_version(adapter);
+ if (adapter->portnum == 0)
+ qlcnic_set_drv_version(adapter);
pci_set_drvdata(pdev, adapter);
@@ -3085,7 +3086,8 @@
adapter->fw_fail_cnt = 0;
adapter->flags &= ~QLCNIC_FW_HANG;
clear_bit(__QLCNIC_RESETTING, &adapter->state);
- qlcnic_set_drv_version(adapter);
+ if (adapter->portnum == 0)
+ qlcnic_set_drv_version(adapter);
if (!qlcnic_clr_drv_state(adapter))
qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index 10ed82b..660c3f5 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -170,9 +170,9 @@
if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_BEACON) {
err = qlcnic_get_beacon_state(adapter, &h_beacon_state);
- if (!err) {
- dev_info(&adapter->pdev->dev,
- "Failed to get current beacon state\n");
+ if (err) {
+ netdev_err(adapter->netdev,
+ "Failed to get current beacon state\n");
} else {
if (h_beacon_state == QLCNIC_BEACON_DISABLE)
ahw->beacon_state = 0;
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index 6f35f84..d2e5919 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -524,6 +524,7 @@
PCI_DMA_FROMDEVICE);
if (dma_mapping_error(&cp->pdev->dev, new_mapping)) {
dev->stats.rx_dropped++;
+ kfree_skb(new_skb);
goto rx_next;
}
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index b5eb419..85e5c97 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -7088,7 +7088,7 @@
RTL_W8(Cfg9346, Cfg9346_Unlock);
RTL_W8(Config1, RTL_R8(Config1) | PMEnable);
- RTL_W8(Config5, RTL_R8(Config5) & PMEStatus);
+ RTL_W8(Config5, RTL_R8(Config5) & (BWF | MWF | UWF | LanWake | PMEStatus));
if ((RTL_R8(Config3) & (LinkUp | MagicPacket)) != 0)
tp->features |= RTL_FEATURE_WOL;
if ((RTL_R8(Config5) & (UWF | BWF | MWF)) != 0)
diff --git a/drivers/net/ethernet/sfc/filter.c b/drivers/net/ethernet/sfc/filter.c
index 2a469b2..30d7442 100644
--- a/drivers/net/ethernet/sfc/filter.c
+++ b/drivers/net/ethernet/sfc/filter.c
@@ -675,7 +675,7 @@
BUILD_BUG_ON(EFX_FILTER_INDEX_UC_DEF != 0);
BUILD_BUG_ON(EFX_FILTER_INDEX_MC_DEF !=
EFX_FILTER_MC_DEF - EFX_FILTER_UC_DEF);
- rep_index = spec->type - EFX_FILTER_INDEX_UC_DEF;
+ rep_index = spec->type - EFX_FILTER_UC_DEF;
ins_index = rep_index;
spin_lock_bh(&state->lock);
diff --git a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
index c9d942a..1ef9d8a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
+++ b/drivers/net/ethernet/stmicro/stmmac/ring_mode.c
@@ -33,10 +33,15 @@
struct stmmac_priv *priv = (struct stmmac_priv *)p;
unsigned int txsize = priv->dma_tx_size;
unsigned int entry = priv->cur_tx % txsize;
- struct dma_desc *desc = priv->dma_tx + entry;
+ struct dma_desc *desc;
unsigned int nopaged_len = skb_headlen(skb);
unsigned int bmax, len;
+ if (priv->extend_desc)
+ desc = (struct dma_desc *)(priv->dma_etx + entry);
+ else
+ desc = priv->dma_tx + entry;
+
if (priv->plat->enh_desc)
bmax = BUF_SIZE_8KiB;
else
@@ -54,7 +59,11 @@
STMMAC_RING_MODE);
wmb();
entry = (++priv->cur_tx) % txsize;
- desc = priv->dma_tx + entry;
+
+ if (priv->extend_desc)
+ desc = (struct dma_desc *)(priv->dma_etx + entry);
+ else
+ desc = priv->dma_tx + entry;
desc->des2 = dma_map_single(priv->device, skb->data + bmax,
len, DMA_TO_DEVICE);
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index f2ccb36..0a9bb9d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -939,15 +939,20 @@
skb = __netdev_alloc_skb(priv->dev, priv->dma_buf_sz + NET_IP_ALIGN,
GFP_KERNEL);
- if (unlikely(skb == NULL)) {
+ if (!skb) {
pr_err("%s: Rx init fails; skb is NULL\n", __func__);
- return 1;
+ return -ENOMEM;
}
skb_reserve(skb, NET_IP_ALIGN);
priv->rx_skbuff[i] = skb;
priv->rx_skbuff_dma[i] = dma_map_single(priv->device, skb->data,
priv->dma_buf_sz,
DMA_FROM_DEVICE);
+ if (dma_mapping_error(priv->device, priv->rx_skbuff_dma[i])) {
+ pr_err("%s: DMA mapping error\n", __func__);
+ dev_kfree_skb_any(skb);
+ return -EINVAL;
+ }
p->des2 = priv->rx_skbuff_dma[i];
@@ -958,6 +963,16 @@
return 0;
}
+static void stmmac_free_rx_buffers(struct stmmac_priv *priv, int i)
+{
+ if (priv->rx_skbuff[i]) {
+ dma_unmap_single(priv->device, priv->rx_skbuff_dma[i],
+ priv->dma_buf_sz, DMA_FROM_DEVICE);
+ dev_kfree_skb_any(priv->rx_skbuff[i]);
+ }
+ priv->rx_skbuff[i] = NULL;
+}
+
/**
* init_dma_desc_rings - init the RX/TX descriptor rings
* @dev: net device structure
@@ -965,13 +980,14 @@
* and allocates the socket buffers. It suppors the chained and ring
* modes.
*/
-static void init_dma_desc_rings(struct net_device *dev)
+static int init_dma_desc_rings(struct net_device *dev)
{
int i;
struct stmmac_priv *priv = netdev_priv(dev);
unsigned int txsize = priv->dma_tx_size;
unsigned int rxsize = priv->dma_rx_size;
unsigned int bfsize = 0;
+ int ret = -ENOMEM;
/* Set the max buffer size according to the DESC mode
* and the MTU. Note that RING mode allows 16KiB bsize.
@@ -992,34 +1008,60 @@
dma_extended_desc),
&priv->dma_rx_phy,
GFP_KERNEL);
+ if (!priv->dma_erx)
+ goto err_dma;
+
priv->dma_etx = dma_alloc_coherent(priv->device, txsize *
sizeof(struct
dma_extended_desc),
&priv->dma_tx_phy,
GFP_KERNEL);
- if ((!priv->dma_erx) || (!priv->dma_etx))
- return;
+ if (!priv->dma_etx) {
+ dma_free_coherent(priv->device, priv->dma_rx_size *
+ sizeof(struct dma_extended_desc),
+ priv->dma_erx, priv->dma_rx_phy);
+ goto err_dma;
+ }
} else {
priv->dma_rx = dma_alloc_coherent(priv->device, rxsize *
sizeof(struct dma_desc),
&priv->dma_rx_phy,
GFP_KERNEL);
+ if (!priv->dma_rx)
+ goto err_dma;
+
priv->dma_tx = dma_alloc_coherent(priv->device, txsize *
sizeof(struct dma_desc),
&priv->dma_tx_phy,
GFP_KERNEL);
- if ((!priv->dma_rx) || (!priv->dma_tx))
- return;
+ if (!priv->dma_tx) {
+ dma_free_coherent(priv->device, priv->dma_rx_size *
+ sizeof(struct dma_desc),
+ priv->dma_rx, priv->dma_rx_phy);
+ goto err_dma;
+ }
}
priv->rx_skbuff_dma = kmalloc_array(rxsize, sizeof(dma_addr_t),
GFP_KERNEL);
+ if (!priv->rx_skbuff_dma)
+ goto err_rx_skbuff_dma;
+
priv->rx_skbuff = kmalloc_array(rxsize, sizeof(struct sk_buff *),
GFP_KERNEL);
+ if (!priv->rx_skbuff)
+ goto err_rx_skbuff;
+
priv->tx_skbuff_dma = kmalloc_array(txsize, sizeof(dma_addr_t),
GFP_KERNEL);
+ if (!priv->tx_skbuff_dma)
+ goto err_tx_skbuff_dma;
+
priv->tx_skbuff = kmalloc_array(txsize, sizeof(struct sk_buff *),
GFP_KERNEL);
+ if (!priv->tx_skbuff)
+ goto err_tx_skbuff;
+
if (netif_msg_probe(priv)) {
pr_debug("(%s) dma_rx_phy=0x%08x dma_tx_phy=0x%08x\n", __func__,
(u32) priv->dma_rx_phy, (u32) priv->dma_tx_phy);
@@ -1034,8 +1076,9 @@
else
p = priv->dma_rx + i;
- if (stmmac_init_rx_buffers(priv, p, i))
- break;
+ ret = stmmac_init_rx_buffers(priv, p, i);
+ if (ret)
+ goto err_init_rx_buffers;
if (netif_msg_probe(priv))
pr_debug("[%p]\t[%p]\t[%x]\n", priv->rx_skbuff[i],
@@ -1081,20 +1124,44 @@
if (netif_msg_hw(priv))
stmmac_display_rings(priv);
+
+ return 0;
+err_init_rx_buffers:
+ while (--i >= 0)
+ stmmac_free_rx_buffers(priv, i);
+ kfree(priv->tx_skbuff);
+err_tx_skbuff:
+ kfree(priv->tx_skbuff_dma);
+err_tx_skbuff_dma:
+ kfree(priv->rx_skbuff);
+err_rx_skbuff:
+ kfree(priv->rx_skbuff_dma);
+err_rx_skbuff_dma:
+ if (priv->extend_desc) {
+ dma_free_coherent(priv->device, priv->dma_tx_size *
+ sizeof(struct dma_extended_desc),
+ priv->dma_etx, priv->dma_tx_phy);
+ dma_free_coherent(priv->device, priv->dma_rx_size *
+ sizeof(struct dma_extended_desc),
+ priv->dma_erx, priv->dma_rx_phy);
+ } else {
+ dma_free_coherent(priv->device,
+ priv->dma_tx_size * sizeof(struct dma_desc),
+ priv->dma_tx, priv->dma_tx_phy);
+ dma_free_coherent(priv->device,
+ priv->dma_rx_size * sizeof(struct dma_desc),
+ priv->dma_rx, priv->dma_rx_phy);
+ }
+err_dma:
+ return ret;
}
static void dma_free_rx_skbufs(struct stmmac_priv *priv)
{
int i;
- for (i = 0; i < priv->dma_rx_size; i++) {
- if (priv->rx_skbuff[i]) {
- dma_unmap_single(priv->device, priv->rx_skbuff_dma[i],
- priv->dma_buf_sz, DMA_FROM_DEVICE);
- dev_kfree_skb_any(priv->rx_skbuff[i]);
- }
- priv->rx_skbuff[i] = NULL;
- }
+ for (i = 0; i < priv->dma_rx_size; i++)
+ stmmac_free_rx_buffers(priv, i);
}
static void dma_free_tx_skbufs(struct stmmac_priv *priv)
@@ -1560,12 +1627,17 @@
priv->dma_tx_size = STMMAC_ALIGN(dma_txsize);
priv->dma_rx_size = STMMAC_ALIGN(dma_rxsize);
priv->dma_buf_sz = STMMAC_ALIGN(buf_sz);
- init_dma_desc_rings(dev);
+
+ ret = init_dma_desc_rings(dev);
+ if (ret < 0) {
+ pr_err("%s: DMA descriptors initialization failed\n", __func__);
+ goto dma_desc_error;
+ }
/* DMA initialization and SW reset */
ret = stmmac_init_dma_engine(priv);
if (ret < 0) {
- pr_err("%s: DMA initialization failed\n", __func__);
+ pr_err("%s: DMA engine initialization failed\n", __func__);
goto init_error;
}
@@ -1672,6 +1744,7 @@
init_error:
free_dma_desc_resources(priv);
+dma_desc_error:
if (priv->phydev)
phy_disconnect(priv->phydev);
phy_error:
diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c
index 1d6dc41..d01cacf 100644
--- a/drivers/net/ethernet/via/via-velocity.c
+++ b/drivers/net/ethernet/via/via-velocity.c
@@ -2100,7 +2100,7 @@
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vid);
}
- netif_rx(skb);
+ netif_receive_skb(skb);
stats->rx_bytes += pkt_len;
stats->rx_packets++;
@@ -2884,6 +2884,7 @@
return ret;
err_iounmap:
+ netif_napi_del(&vptr->napi);
iounmap(regs);
err_free_dev:
free_netdev(netdev);
@@ -2904,6 +2905,7 @@
struct velocity_info *vptr = netdev_priv(netdev);
unregister_netdev(netdev);
+ netif_napi_del(&vptr->napi);
iounmap(vptr->mac_regs);
free_netdev(netdev);
velocity_nics--;
diff --git a/drivers/net/irda/via-ircc.c b/drivers/net/irda/via-ircc.c
index 51f2bc3..2dcc60f 100644
--- a/drivers/net/irda/via-ircc.c
+++ b/drivers/net/irda/via-ircc.c
@@ -210,8 +210,7 @@
pci_write_config_byte(pcidev,0x42,(bTmp | 0xf0));
pci_write_config_byte(pcidev,0x5a,0xc0);
WriteLPCReg(0x28, 0x70 );
- if (via_ircc_open(pcidev, &info, 0x3076) == 0)
- rc=0;
+ rc = via_ircc_open(pcidev, &info, 0x3076);
} else
rc = -ENODEV; //IR not turn on
} else { //Not VT1211
@@ -249,8 +248,7 @@
info.irq=FirIRQ;
info.dma=FirDRQ1;
info.dma2=FirDRQ0;
- if (via_ircc_open(pcidev, &info, 0x3096) == 0)
- rc=0;
+ rc = via_ircc_open(pcidev, &info, 0x3096);
} else
rc = -ENODEV; //IR not turn on !!!!!
}//Not VT1211
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index d0f9c2f..16b43bf 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -739,6 +739,10 @@
return -EADDRNOTAVAIL;
}
+ if (data && data[IFLA_MACVLAN_FLAGS] &&
+ nla_get_u16(data[IFLA_MACVLAN_FLAGS]) & ~MACVLAN_FLAG_NOPROMISC)
+ return -EINVAL;
+
if (data && data[IFLA_MACVLAN_MODE]) {
switch (nla_get_u32(data[IFLA_MACVLAN_MODE])) {
case MACVLAN_MODE_PRIVATE:
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index a98fb0e..ea53abb 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -68,6 +68,8 @@
#define TUN_OFFLOADS (NETIF_F_HW_CSUM | NETIF_F_TSO_ECN | NETIF_F_TSO | \
NETIF_F_TSO6 | NETIF_F_UFO)
#define RX_OFFLOADS (NETIF_F_GRO | NETIF_F_LRO)
+#define TAP_FEATURES (NETIF_F_GSO | NETIF_F_SG)
+
/*
* RCU usage:
* The macvtap_queue and the macvlan_dev are loosely coupled, the
@@ -278,7 +280,8 @@
{
struct macvlan_dev *vlan = netdev_priv(dev);
struct macvtap_queue *q = macvtap_get_queue(dev, skb);
- netdev_features_t features;
+ netdev_features_t features = TAP_FEATURES;
+
if (!q)
goto drop;
@@ -287,9 +290,11 @@
skb->dev = dev;
/* Apply the forward feature mask so that we perform segmentation
- * according to users wishes.
+ * according to users wishes. This only works if VNET_HDR is
+ * enabled.
*/
- features = netif_skb_features(skb) & vlan->tap_features;
+ if (q->flags & IFF_VNET_HDR)
+ features |= vlan->tap_features;
if (netif_needs_gso(skb, features)) {
struct sk_buff *segs = __skb_gso_segment(skb, features, false);
@@ -818,10 +823,13 @@
skb_shinfo(skb)->tx_flags |= SKBTX_DEV_ZEROCOPY;
skb_shinfo(skb)->tx_flags |= SKBTX_SHARED_FRAG;
}
- if (vlan)
+ if (vlan) {
+ local_bh_disable();
macvlan_start_xmit(skb, vlan->dev);
- else
+ local_bh_enable();
+ } else {
kfree_skb(skb);
+ }
rcu_read_unlock();
return total_len;
@@ -912,8 +920,11 @@
done:
rcu_read_lock();
vlan = rcu_dereference(q->vlan);
- if (vlan)
+ if (vlan) {
+ preempt_disable();
macvlan_count_rx(vlan, copied - vnet_hdr_len, ret == 0, 0);
+ preempt_enable();
+ }
rcu_read_unlock();
return ret ? ret : copied;
@@ -1058,8 +1069,7 @@
/* tap_features are the same as features on tun/tap and
* reflect user expectations.
*/
- vlan->tap_features = vlan->dev->features &
- (feature_mask | ~TUN_OFFLOADS);
+ vlan->tap_features = feature_mask;
vlan->set_features = features;
netdev_update_features(vlan->dev);
@@ -1155,10 +1165,6 @@
TUN_F_TSO_ECN | TUN_F_UFO))
return -EINVAL;
- /* TODO: only accept frames with the features that
- got enabled for forwarded frames */
- if (!(q->flags & IFF_VNET_HDR))
- return -EINVAL;
rtnl_lock();
ret = set_offload(q, arg);
rtnl_unlock();
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 8e7af83..138de83 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -23,7 +23,7 @@
#define RTL821x_INER_INIT 0x6400
#define RTL821x_INSR 0x13
-#define RTL8211E_INER_LINK_STAT 0x10
+#define RTL8211E_INER_LINK_STATUS 0x400
MODULE_DESCRIPTION("Realtek PHY driver");
MODULE_AUTHOR("Johnson Leung");
@@ -57,7 +57,7 @@
if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
err = phy_write(phydev, RTL821x_INER,
- RTL8211E_INER_LINK_STAT);
+ RTL8211E_INER_LINK_STATUS);
else
err = phy_write(phydev, RTL821x_INER, 0);
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index db690a3..71af122 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -1074,8 +1074,9 @@
u32 rxhash;
if (!(tun->flags & TUN_NO_PI)) {
- if ((len -= sizeof(pi)) > total_len)
+ if (len < sizeof(pi))
return -EINVAL;
+ len -= sizeof(pi);
if (memcpy_fromiovecend((void *)&pi, iv, 0, sizeof(pi)))
return -EFAULT;
@@ -1083,8 +1084,9 @@
}
if (tun->flags & TUN_VNET_HDR) {
- if ((len -= tun->vnet_hdr_sz) > total_len)
+ if (len < tun->vnet_hdr_sz)
return -EINVAL;
+ len -= tun->vnet_hdr_sz;
if (memcpy_fromiovecend((void *)&gso, iv, offset, sizeof(gso)))
return -EFAULT;
diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
index cba1d46..86292e6 100644
--- a/drivers/net/usb/hso.c
+++ b/drivers/net/usb/hso.c
@@ -2816,13 +2816,16 @@
static int hso_get_config_data(struct usb_interface *interface)
{
struct usb_device *usbdev = interface_to_usbdev(interface);
- u8 config_data[17];
+ u8 *config_data = kmalloc(17, GFP_KERNEL);
u32 if_num = interface->altsetting->desc.bInterfaceNumber;
s32 result;
+ if (!config_data)
+ return -ENOMEM;
if (usb_control_msg(usbdev, usb_rcvctrlpipe(usbdev, 0),
0x86, 0xC0, 0, 0, config_data, 17,
USB_CTRL_SET_TIMEOUT) != 0x11) {
+ kfree(config_data);
return -EIO;
}
@@ -2873,6 +2876,7 @@
if (config_data[16] & 0x1)
result |= HSO_INFO_CRC_BUG;
+ kfree(config_data);
return result;
}
@@ -2886,6 +2890,11 @@
struct hso_shared_int *shared_int;
struct hso_device *tmp_dev = NULL;
+ if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) {
+ dev_err(&interface->dev, "Not our interface\n");
+ return -ENODEV;
+ }
+
if_num = interface->altsetting->desc.bInterfaceNumber;
/* Get the interface/port specification from either driver_info or from
@@ -2895,10 +2904,6 @@
else
port_spec = hso_get_config_data(interface);
- if (interface->cur_altsetting->desc.bInterfaceClass != 0xFF) {
- dev_err(&interface->dev, "Not our interface\n");
- return -ENODEV;
- }
/* Check if we need to switch to alt interfaces prior to port
* configuration */
if (interface->num_altsetting > 1)
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index f4c6db4..767f7af 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1386,7 +1386,7 @@
return -ENOTCONN;
if (IN_MULTICAST(ntohl(vxlan->default_dst.remote_ip)) &&
- ! vxlan_group_used(vn, vxlan->default_dst.remote_ip)) {
+ vxlan_group_used(vn, vxlan->default_dst.remote_ip)) {
vxlan_sock_hold(vs);
dev_hold(dev);
queue_work(vxlan_wq, &vxlan->igmp_join);
@@ -1793,8 +1793,6 @@
struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
struct vxlan_dev *vxlan = netdev_priv(dev);
- flush_workqueue(vxlan_wq);
-
spin_lock(&vn->sock_lock);
hlist_del_rcu(&vxlan->hlist);
spin_unlock(&vn->sock_lock);
diff --git a/drivers/net/wireless/cw1200/sta.c b/drivers/net/wireless/cw1200/sta.c
index 7365674..010b252 100644
--- a/drivers/net/wireless/cw1200/sta.c
+++ b/drivers/net/wireless/cw1200/sta.c
@@ -1406,11 +1406,8 @@
if (!priv->join_status)
goto done;
- if (priv->join_status > CW1200_JOIN_STATUS_IBSS) {
- wiphy_err(priv->hw->wiphy, "Unexpected: join status: %d\n",
- priv->join_status);
- BUG_ON(1);
- }
+ if (priv->join_status == CW1200_JOIN_STATUS_AP)
+ goto done;
cancel_work_sync(&priv->update_filtering_work);
cancel_work_sync(&priv->set_beacon_wakeup_period_work);
diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index ac07473..e509030 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -523,9 +523,9 @@
data->length = prism2_ap_get_sta_qual(local, addr, qual, IW_MAX_AP, 1);
- memcpy(extra, &addr, sizeof(struct sockaddr) * data->length);
+ memcpy(extra, addr, sizeof(struct sockaddr) * data->length);
data->flags = 1; /* has quality information */
- memcpy(extra + sizeof(struct sockaddr) * data->length, &qual,
+ memcpy(extra + sizeof(struct sockaddr) * data->length, qual,
sizeof(struct iw_quality) * data->length);
kfree(addr);
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index b9b2bb5..f2ed62e 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -4460,12 +4460,12 @@
* is killed. Hence update the killswitch state here. The
* rfkill handler will care about restarting if needed.
*/
- if (!test_bit(S_ALIVE, &il->status)) {
- if (hw_rf_kill)
- set_bit(S_RFKILL, &il->status);
- else
- clear_bit(S_RFKILL, &il->status);
+ if (hw_rf_kill) {
+ set_bit(S_RFKILL, &il->status);
+ } else {
+ clear_bit(S_RFKILL, &il->status);
wiphy_rfkill_set_hw_state(il->hw->wiphy, hw_rf_kill);
+ il_force_reset(il, true);
}
handled |= CSR_INT_BIT_RF_KILL;
@@ -5334,6 +5334,9 @@
il->active_rate = RATES_MASK;
+ il_power_update_mode(il, true);
+ D_INFO("Updated power mode\n");
+
if (il_is_associated(il)) {
struct il_rxon_cmd *active_rxon =
(struct il_rxon_cmd *)&il->active;
@@ -5364,9 +5367,6 @@
D_INFO("ALIVE processing complete.\n");
wake_up(&il->wait_command_queue);
- il_power_update_mode(il, true);
- D_INFO("Updated power mode\n");
-
return;
restart:
diff --git a/drivers/net/wireless/iwlegacy/common.c b/drivers/net/wireless/iwlegacy/common.c
index 3195aad..b03e22e 100644
--- a/drivers/net/wireless/iwlegacy/common.c
+++ b/drivers/net/wireless/iwlegacy/common.c
@@ -4660,6 +4660,7 @@
return 0;
}
+EXPORT_SYMBOL(il_force_reset);
int
il_mac_change_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/iwlwifi/dvm/mac80211.c b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
index 822f1a0..3193872 100644
--- a/drivers/net/wireless/iwlwifi/dvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/dvm/mac80211.c
@@ -1068,7 +1068,10 @@
if (test_bit(STATUS_EXIT_PENDING, &priv->status))
return;
- if (test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
+ if (!test_and_clear_bit(STATUS_CHANNEL_SWITCH_PENDING, &priv->status))
+ return;
+
+ if (ctx->vif)
ieee80211_chswitch_done(ctx->vif, is_success);
}
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index a70c7b9..ff8cc75 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -97,8 +97,6 @@
#define APMG_PCIDEV_STT_VAL_L1_ACT_DIS (0x00000800)
-#define APMG_RTC_INT_STT_RFKILL (0x10000000)
-
/* Device system time */
#define DEVICE_SYSTEM_TIME_REG 0xA0206C
diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c
index ad9bbca..7fd6fbf 100644
--- a/drivers/net/wireless/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c
@@ -138,6 +138,20 @@
schedule_work(&mvm->roc_done_wk);
}
+static bool iwl_mvm_te_check_disconnect(struct iwl_mvm *mvm,
+ struct ieee80211_vif *vif,
+ const char *errmsg)
+{
+ if (vif->type != NL80211_IFTYPE_STATION)
+ return false;
+ if (vif->bss_conf.assoc && vif->bss_conf.dtim_period)
+ return false;
+ if (errmsg)
+ IWL_ERR(mvm, "%s\n", errmsg);
+ ieee80211_connection_loss(vif);
+ return true;
+}
+
/*
* Handles a FW notification for an event that is known to the driver.
*
@@ -163,8 +177,13 @@
* P2P Device discoveribility, while there are other higher priority
* events in the system).
*/
- WARN_ONCE(!le32_to_cpu(notif->status),
- "Failed to schedule time event\n");
+ if (WARN_ONCE(!le32_to_cpu(notif->status),
+ "Failed to schedule time event\n")) {
+ if (iwl_mvm_te_check_disconnect(mvm, te_data->vif, NULL)) {
+ iwl_mvm_te_clear_data(mvm, te_data);
+ return;
+ }
+ }
if (le32_to_cpu(notif->action) & TE_NOTIF_HOST_EVENT_END) {
IWL_DEBUG_TE(mvm,
@@ -180,14 +199,8 @@
* By now, we should have finished association
* and know the dtim period.
*/
- if (te_data->vif->type == NL80211_IFTYPE_STATION &&
- (!te_data->vif->bss_conf.assoc ||
- !te_data->vif->bss_conf.dtim_period)) {
- IWL_ERR(mvm,
- "No assocation and the time event is over already...\n");
- ieee80211_connection_loss(te_data->vif);
- }
-
+ iwl_mvm_te_check_disconnect(mvm, te_data->vif,
+ "No assocation and the time event is over already...");
iwl_mvm_te_clear_data(mvm, te_data);
} else if (le32_to_cpu(notif->action) & TE_NOTIF_HOST_EVENT_START) {
te_data->running = true;
diff --git a/drivers/net/wireless/iwlwifi/pcie/rx.c b/drivers/net/wireless/iwlwifi/pcie/rx.c
index f600e68..fd848cd 100644
--- a/drivers/net/wireless/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/rx.c
@@ -888,14 +888,6 @@
iwl_op_mode_hw_rf_kill(trans->op_mode, hw_rfkill);
if (hw_rfkill) {
- /*
- * Clear the interrupt in APMG if the NIC is going down.
- * Note that when the NIC exits RFkill (else branch), we
- * can't access prph and the NIC will be reset in
- * start_hw anyway.
- */
- iwl_write_prph(trans, APMG_RTC_INT_STT_REG,
- APMG_RTC_INT_STT_RFKILL);
set_bit(STATUS_RFKILL, &trans_pcie->status);
if (test_and_clear_bit(STATUS_HCMD_ACTIVE,
&trans_pcie->status))
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 96cfcdd..390e2f0 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1502,16 +1502,16 @@
spin_lock_init(&trans_pcie->reg_lock);
init_waitqueue_head(&trans_pcie->ucode_write_waitq);
- /* W/A - seems to solve weird behavior. We need to remove this if we
- * don't want to stay in L1 all the time. This wastes a lot of power */
- pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
- PCIE_LINK_STATE_CLKPM);
-
if (pci_enable_device(pdev)) {
err = -ENODEV;
goto out_no_pci;
}
+ /* W/A - seems to solve weird behavior. We need to remove this if we
+ * don't want to stay in L1 all the time. This wastes a lot of power */
+ pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S | PCIE_LINK_STATE_L1 |
+ PCIE_LINK_STATE_CLKPM);
+
pci_set_master(pdev);
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
diff --git a/drivers/net/wireless/zd1201.c b/drivers/net/wireless/zd1201.c
index 4941f20..b8ba1f9 100644
--- a/drivers/net/wireless/zd1201.c
+++ b/drivers/net/wireless/zd1201.c
@@ -98,10 +98,12 @@
goto exit;
err = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), 0x4,
- USB_DIR_IN | 0x40, 0,0, &ret, sizeof(ret), ZD1201_FW_TIMEOUT);
+ USB_DIR_IN | 0x40, 0, 0, buf, sizeof(ret), ZD1201_FW_TIMEOUT);
if (err < 0)
goto exit;
+ memcpy(&ret, buf, sizeof(ret));
+
if (ret & 0x80) {
err = -EIO;
goto exit;
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 5c54279..605afa9 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -18,6 +18,7 @@
* 2 of the License, or (at your option) any later version.
*/
#include <linux/ctype.h>
+#include <linux/cpu.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/spinlock.h>
@@ -230,6 +231,100 @@
}
EXPORT_SYMBOL(of_get_property);
+/*
+ * arch_match_cpu_phys_id - Match the given logical CPU and physical id
+ *
+ * @cpu: logical cpu index of a core/thread
+ * @phys_id: physical identifier of a core/thread
+ *
+ * CPU logical to physical index mapping is architecture specific.
+ * However this __weak function provides a default match of physical
+ * id to logical cpu index. phys_id provided here is usually values read
+ * from the device tree which must match the hardware internal registers.
+ *
+ * Returns true if the physical identifier and the logical cpu index
+ * correspond to the same core/thread, false otherwise.
+ */
+bool __weak arch_match_cpu_phys_id(int cpu, u64 phys_id)
+{
+ return (u32)phys_id == cpu;
+}
+
+/**
+ * Checks if the given "prop_name" property holds the physical id of the
+ * core/thread corresponding to the logical cpu 'cpu'. If 'thread' is not
+ * NULL, local thread number within the core is returned in it.
+ */
+static bool __of_find_n_match_cpu_property(struct device_node *cpun,
+ const char *prop_name, int cpu, unsigned int *thread)
+{
+ const __be32 *cell;
+ int ac, prop_len, tid;
+ u64 hwid;
+
+ ac = of_n_addr_cells(cpun);
+ cell = of_get_property(cpun, prop_name, &prop_len);
+ if (!cell)
+ return false;
+ prop_len /= sizeof(*cell);
+ for (tid = 0; tid < prop_len; tid++) {
+ hwid = of_read_number(cell, ac);
+ if (arch_match_cpu_phys_id(cpu, hwid)) {
+ if (thread)
+ *thread = tid;
+ return true;
+ }
+ cell += ac;
+ }
+ return false;
+}
+
+/**
+ * of_get_cpu_node - Get device node associated with the given logical CPU
+ *
+ * @cpu: CPU number(logical index) for which device node is required
+ * @thread: if not NULL, local thread number within the physical core is
+ * returned
+ *
+ * The main purpose of this function is to retrieve the device node for the
+ * given logical CPU index. It should be used to initialize the of_node in
+ * cpu device. Once of_node in cpu device is populated, all the further
+ * references can use that instead.
+ *
+ * CPU logical to physical index mapping is architecture specific and is built
+ * before booting secondary cores. This function uses arch_match_cpu_phys_id
+ * which can be overridden by architecture specific implementation.
+ *
+ * Returns a node pointer for the logical cpu if found, else NULL.
+ */
+struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
+{
+ struct device_node *cpun, *cpus;
+
+ cpus = of_find_node_by_path("/cpus");
+ if (!cpus) {
+ pr_warn("Missing cpus node, bailing out\n");
+ return NULL;
+ }
+
+ for_each_child_of_node(cpus, cpun) {
+ if (of_node_cmp(cpun->type, "cpu"))
+ continue;
+ /* Check for non-standard "ibm,ppc-interrupt-server#s" property
+ * for thread ids on PowerPC. If it doesn't exist fallback to
+ * standard "reg" property.
+ */
+ if (IS_ENABLED(CONFIG_PPC) &&
+ __of_find_n_match_cpu_property(cpun,
+ "ibm,ppc-interrupt-server#s", cpu, thread))
+ return cpun;
+ if (__of_find_n_match_cpu_property(cpun, "reg", cpu, thread))
+ return cpun;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(of_get_cpu_node);
+
/** Checks if the given "compat" string matches one of the strings in
* the device's "compatible" property
*/
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 6bb7cf2..b10ba00 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -392,6 +392,8 @@
mem = (unsigned long)
dt_alloc(size + 4, __alignof__(struct device_node));
+ memset((void *)mem, 0, size);
+
((__be32 *)mem)[size / 4] = cpu_to_be32(0xdeadbeef);
pr_debug(" unflattening %lx...\n", mem);
diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index 6fdd49c..f4e0289 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -49,6 +49,7 @@
#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
+struct acpiphp_context;
struct acpiphp_bridge;
struct acpiphp_slot;
@@ -59,6 +60,7 @@
struct hotplug_slot *hotplug_slot;
struct acpiphp_slot *acpi_slot;
struct hotplug_slot_info info;
+ unsigned int sun; /* ACPI _SUN (Slot User Number) value */
};
static inline const char *slot_name(struct slot *slot)
@@ -75,15 +77,11 @@
struct list_head list;
struct list_head slots;
struct kref ref;
- acpi_handle handle;
- /* Ejectable PCI-to-PCI bridge (PCI bridge and PCI function) */
- struct acpiphp_func *func;
+ struct acpiphp_context *context;
int nr_slots;
- u32 flags;
-
/* This bus (host bridge) or Secondary bus (PCI-to-PCI bridge) */
struct pci_bus *pci_bus;
@@ -99,15 +97,13 @@
*/
struct acpiphp_slot {
struct list_head node;
- struct acpiphp_bridge *bridge; /* parent */
+ struct pci_bus *bus;
struct list_head funcs; /* one slot may have different
objects (i.e. for each function) */
struct slot *slot;
struct mutex crit_sect;
u8 device; /* pci device# */
-
- unsigned long long sun; /* ACPI _SUN (slot unique number) */
u32 flags; /* see below */
};
@@ -119,16 +115,32 @@
* typically 8 objects per slot (i.e. for each PCI function)
*/
struct acpiphp_func {
- struct acpiphp_slot *slot; /* parent */
+ struct acpiphp_bridge *parent;
+ struct acpiphp_slot *slot;
struct list_head sibling;
- struct notifier_block nb;
- acpi_handle handle;
u8 function; /* pci function# */
u32 flags; /* see below */
};
+struct acpiphp_context {
+ acpi_handle handle;
+ struct acpiphp_func func;
+ struct acpiphp_bridge *bridge;
+ unsigned int refcount;
+};
+
+static inline struct acpiphp_context *func_to_context(struct acpiphp_func *func)
+{
+ return container_of(func, struct acpiphp_context, func);
+}
+
+static inline acpi_handle func_to_handle(struct acpiphp_func *func)
+{
+ return func_to_context(func)->handle;
+}
+
/*
* struct acpiphp_attention_info - device specific attention registration
*
@@ -142,45 +154,32 @@
struct module *owner;
};
-/* PCI bus bridge HID */
-#define ACPI_PCI_HOST_HID "PNP0A03"
-
/* ACPI _STA method value (ignore bit 4; battery present) */
#define ACPI_STA_ALL (0x0000000f)
-/* bridge flags */
-#define BRIDGE_HAS_EJ0 (0x00000001)
-
/* slot flags */
-#define SLOT_POWEREDON (0x00000001)
-#define SLOT_ENABLED (0x00000002)
-#define SLOT_MULTIFUNCTION (0x00000004)
+#define SLOT_ENABLED (0x00000001)
/* function flags */
#define FUNC_HAS_STA (0x00000001)
#define FUNC_HAS_EJ0 (0x00000002)
-#define FUNC_HAS_PS0 (0x00000010)
-#define FUNC_HAS_PS1 (0x00000020)
-#define FUNC_HAS_PS2 (0x00000040)
-#define FUNC_HAS_PS3 (0x00000080)
-#define FUNC_HAS_DCK (0x00000100)
+#define FUNC_HAS_DCK (0x00000004)
/* function prototypes */
/* acpiphp_core.c */
int acpiphp_register_attention(struct acpiphp_attention_info*info);
int acpiphp_unregister_attention(struct acpiphp_attention_info *info);
-int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot);
+int acpiphp_register_hotplug_slot(struct acpiphp_slot *slot, unsigned int sun);
void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *slot);
/* acpiphp_glue.c */
typedef int (*acpiphp_callback)(struct acpiphp_slot *slot, void *data);
int acpiphp_enable_slot(struct acpiphp_slot *slot);
-int acpiphp_disable_slot(struct acpiphp_slot *slot);
-int acpiphp_eject_slot(struct acpiphp_slot *slot);
+int acpiphp_disable_and_eject_slot(struct acpiphp_slot *slot);
u8 acpiphp_get_power_status(struct acpiphp_slot *slot);
u8 acpiphp_get_attention_status(struct acpiphp_slot *slot);
u8 acpiphp_get_latch_status(struct acpiphp_slot *slot);
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index ca81279..bf2203e 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -155,15 +155,11 @@
static int disable_slot(struct hotplug_slot *hotplug_slot)
{
struct slot *slot = hotplug_slot->private;
- int retval;
dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
/* disable the specified slot */
- retval = acpiphp_disable_slot(slot->acpi_slot);
- if (!retval)
- retval = acpiphp_eject_slot(slot->acpi_slot);
- return retval;
+ return acpiphp_disable_and_eject_slot(slot->acpi_slot);
}
@@ -290,7 +286,8 @@
}
/* callback routine to initialize 'struct slot' for each slot */
-int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
+int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot,
+ unsigned int sun)
{
struct slot *slot;
int retval = -ENOMEM;
@@ -317,12 +314,11 @@
slot->hotplug_slot->info->adapter_status = acpiphp_get_adapter_status(slot->acpi_slot);
acpiphp_slot->slot = slot;
- snprintf(name, SLOT_NAME_SIZE, "%llu", slot->acpi_slot->sun);
+ slot->sun = sun;
+ snprintf(name, SLOT_NAME_SIZE, "%u", sun);
- retval = pci_hp_register(slot->hotplug_slot,
- acpiphp_slot->bridge->pci_bus,
- acpiphp_slot->device,
- name);
+ retval = pci_hp_register(slot->hotplug_slot, acpiphp_slot->bus,
+ acpiphp_slot->device, name);
if (retval == -EBUSY)
goto error_hpslot;
if (retval) {
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 59df857..8054ddc 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -46,6 +46,7 @@
#include <linux/pci.h>
#include <linux/pci_hotplug.h>
#include <linux/pci-acpi.h>
+#include <linux/pm_runtime.h>
#include <linux/mutex.h>
#include <linux/slab.h>
#include <linux/acpi.h>
@@ -55,28 +56,82 @@
static LIST_HEAD(bridge_list);
static DEFINE_MUTEX(bridge_mutex);
+static DEFINE_MUTEX(acpiphp_context_lock);
#define MY_NAME "acpiphp_glue"
-static void handle_hotplug_event_bridge (acpi_handle, u32, void *);
+static void handle_hotplug_event(acpi_handle handle, u32 type, void *data);
static void acpiphp_sanitize_bus(struct pci_bus *bus);
static void acpiphp_set_hpp_values(struct pci_bus *bus);
-static void hotplug_event_func(acpi_handle handle, u32 type, void *context);
-static void handle_hotplug_event_func(acpi_handle handle, u32 type, void *context);
+static void hotplug_event(acpi_handle handle, u32 type, void *data);
static void free_bridge(struct kref *kref);
-/* callback routine to check for the existence of a pci dock device */
-static acpi_status
-is_pci_dock_device(acpi_handle handle, u32 lvl, void *context, void **rv)
+static void acpiphp_context_handler(acpi_handle handle, void *context)
{
- int *count = (int *)context;
+ /* Intentionally empty. */
+}
- if (is_dock_device(handle)) {
- (*count)++;
- return AE_CTRL_TERMINATE;
- } else {
- return AE_OK;
+/**
+ * acpiphp_init_context - Create hotplug context and grab a reference to it.
+ * @handle: ACPI object handle to create the context for.
+ *
+ * Call under acpiphp_context_lock.
+ */
+static struct acpiphp_context *acpiphp_init_context(acpi_handle handle)
+{
+ struct acpiphp_context *context;
+ acpi_status status;
+
+ context = kzalloc(sizeof(*context), GFP_KERNEL);
+ if (!context)
+ return NULL;
+
+ context->handle = handle;
+ context->refcount = 1;
+ status = acpi_attach_data(handle, acpiphp_context_handler, context);
+ if (ACPI_FAILURE(status)) {
+ kfree(context);
+ return NULL;
}
+ return context;
+}
+
+/**
+ * acpiphp_get_context - Get hotplug context and grab a reference to it.
+ * @handle: ACPI object handle to get the context for.
+ *
+ * Call under acpiphp_context_lock.
+ */
+static struct acpiphp_context *acpiphp_get_context(acpi_handle handle)
+{
+ struct acpiphp_context *context = NULL;
+ acpi_status status;
+ void *data;
+
+ status = acpi_get_data(handle, acpiphp_context_handler, &data);
+ if (ACPI_SUCCESS(status)) {
+ context = data;
+ context->refcount++;
+ }
+ return context;
+}
+
+/**
+ * acpiphp_put_context - Drop a reference to ACPI hotplug context.
+ * @handle: ACPI object handle to put the context for.
+ *
+ * The context object is removed if there are no more references to it.
+ *
+ * Call under acpiphp_context_lock.
+ */
+static void acpiphp_put_context(struct acpiphp_context *context)
+{
+ if (--context->refcount)
+ return;
+
+ WARN_ON(context->bridge);
+ acpi_detach_data(context->handle, acpiphp_context_handler);
+ kfree(context);
}
static inline void get_bridge(struct acpiphp_bridge *bridge)
@@ -91,25 +146,36 @@
static void free_bridge(struct kref *kref)
{
+ struct acpiphp_context *context;
struct acpiphp_bridge *bridge;
struct acpiphp_slot *slot, *next;
struct acpiphp_func *func, *tmp;
+ mutex_lock(&acpiphp_context_lock);
+
bridge = container_of(kref, struct acpiphp_bridge, ref);
list_for_each_entry_safe(slot, next, &bridge->slots, node) {
- list_for_each_entry_safe(func, tmp, &slot->funcs, sibling) {
- kfree(func);
- }
+ list_for_each_entry_safe(func, tmp, &slot->funcs, sibling)
+ acpiphp_put_context(func_to_context(func));
+
kfree(slot);
}
- /* Release reference acquired by acpiphp_bridge_handle_to_function() */
- if ((bridge->flags & BRIDGE_HAS_EJ0) && bridge->func)
- put_bridge(bridge->func->slot->bridge);
+ context = bridge->context;
+ /* Root bridges will not have hotplug context. */
+ if (context) {
+ /* Release the reference taken by acpiphp_enumerate_slots(). */
+ put_bridge(context->func.parent);
+ context->bridge = NULL;
+ acpiphp_put_context(context);
+ }
+
put_device(&bridge->pci_bus->dev);
pci_dev_put(bridge->pci_dev);
kfree(bridge);
+
+ mutex_unlock(&acpiphp_context_lock);
}
/*
@@ -119,15 +185,14 @@
* TBD - figure out a way to only call fixups for
* systems that require them.
*/
-static int post_dock_fixups(struct notifier_block *nb, unsigned long val,
- void *v)
+static void post_dock_fixups(acpi_handle not_used, u32 event, void *data)
{
- struct acpiphp_func *func = container_of(nb, struct acpiphp_func, nb);
- struct pci_bus *bus = func->slot->bridge->pci_bus;
+ struct acpiphp_context *context = data;
+ struct pci_bus *bus = context->func.slot->bus;
u32 buses;
if (!bus->self)
- return NOTIFY_OK;
+ return;
/* fixup bad _DCK function that rewrites
* secondary bridge on slot
@@ -143,12 +208,12 @@
| ((unsigned int)(bus->busn_res.end) << 16);
pci_write_config_dword(bus->self, PCI_PRIMARY_BUS, buses);
}
- return NOTIFY_OK;
}
static const struct acpi_dock_ops acpiphp_dock_ops = {
- .handler = hotplug_event_func,
+ .fixup = post_dock_fixups,
+ .handler = hotplug_event,
};
/* Check whether the PCI device is managed by native PCIe hotplug driver */
@@ -182,129 +247,118 @@
static void acpiphp_dock_init(void *data)
{
- struct acpiphp_func *func = data;
+ struct acpiphp_context *context = data;
- get_bridge(func->slot->bridge);
+ get_bridge(context->func.parent);
}
static void acpiphp_dock_release(void *data)
{
- struct acpiphp_func *func = data;
+ struct acpiphp_context *context = data;
- put_bridge(func->slot->bridge);
+ put_bridge(context->func.parent);
}
/* callback routine to register each ACPI PCI slot object */
-static acpi_status
-register_slot(acpi_handle handle, u32 lvl, void *context, void **rv)
+static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
+ void **rv)
{
- struct acpiphp_bridge *bridge = (struct acpiphp_bridge *)context;
+ struct acpiphp_bridge *bridge = data;
+ struct acpiphp_context *context;
struct acpiphp_slot *slot;
struct acpiphp_func *newfunc;
- acpi_handle tmp;
acpi_status status = AE_OK;
- unsigned long long adr, sun;
- int device, function, retval, found = 0;
+ unsigned long long adr;
+ int device, function;
struct pci_bus *pbus = bridge->pci_bus;
- struct pci_dev *pdev;
+ struct pci_dev *pdev = bridge->pci_dev;
u32 val;
- if (!acpi_pci_check_ejectable(pbus, handle) && !is_dock_device(handle))
+ if (pdev && device_is_managed_by_native_pciehp(pdev))
return AE_OK;
status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
if (ACPI_FAILURE(status)) {
- warn("can't evaluate _ADR (%#x)\n", status);
+ acpi_handle_warn(handle, "can't evaluate _ADR (%#x)\n", status);
return AE_OK;
}
device = (adr >> 16) & 0xffff;
function = adr & 0xffff;
- pdev = bridge->pci_dev;
- if (pdev && device_is_managed_by_native_pciehp(pdev))
- return AE_OK;
-
- newfunc = kzalloc(sizeof(struct acpiphp_func), GFP_KERNEL);
- if (!newfunc)
- return AE_NO_MEMORY;
-
- newfunc->handle = handle;
+ mutex_lock(&acpiphp_context_lock);
+ context = acpiphp_init_context(handle);
+ if (!context) {
+ mutex_unlock(&acpiphp_context_lock);
+ acpi_handle_err(handle, "No hotplug context\n");
+ return AE_NOT_EXIST;
+ }
+ newfunc = &context->func;
newfunc->function = function;
+ newfunc->parent = bridge;
+ mutex_unlock(&acpiphp_context_lock);
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
+ if (acpi_has_method(handle, "_EJ0"))
newfunc->flags = FUNC_HAS_EJ0;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_STA", &tmp)))
+ if (acpi_has_method(handle, "_STA"))
newfunc->flags |= FUNC_HAS_STA;
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_PS0", &tmp)))
- newfunc->flags |= FUNC_HAS_PS0;
-
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_PS3", &tmp)))
- newfunc->flags |= FUNC_HAS_PS3;
-
- if (ACPI_SUCCESS(acpi_get_handle(handle, "_DCK", &tmp)))
+ if (acpi_has_method(handle, "_DCK"))
newfunc->flags |= FUNC_HAS_DCK;
- status = acpi_evaluate_integer(handle, "_SUN", NULL, &sun);
- if (ACPI_FAILURE(status)) {
- /*
- * use the count of the number of slots we've found
- * for the number of the slot
- */
- sun = bridge->nr_slots+1;
- }
-
/* search for objects that share the same slot */
list_for_each_entry(slot, &bridge->slots, node)
- if (slot->device == device) {
- if (slot->sun != sun)
- warn("sibling found, but _SUN doesn't match!\n");
- found = 1;
- break;
- }
+ if (slot->device == device)
+ goto slot_found;
- if (!found) {
- slot = kzalloc(sizeof(struct acpiphp_slot), GFP_KERNEL);
- if (!slot) {
- kfree(newfunc);
- return AE_NO_MEMORY;
- }
+ slot = kzalloc(sizeof(struct acpiphp_slot), GFP_KERNEL);
+ if (!slot) {
+ status = AE_NO_MEMORY;
+ goto err;
+ }
- slot->bridge = bridge;
- slot->device = device;
- slot->sun = sun;
- INIT_LIST_HEAD(&slot->funcs);
- mutex_init(&slot->crit_sect);
+ slot->bus = bridge->pci_bus;
+ slot->device = device;
+ INIT_LIST_HEAD(&slot->funcs);
+ mutex_init(&slot->crit_sect);
- mutex_lock(&bridge_mutex);
- list_add_tail(&slot->node, &bridge->slots);
- mutex_unlock(&bridge_mutex);
+ list_add_tail(&slot->node, &bridge->slots);
+
+ /* Register slots for ejectable funtions only. */
+ if (acpi_pci_check_ejectable(pbus, handle) || is_dock_device(handle)) {
+ unsigned long long sun;
+ int retval;
+
bridge->nr_slots++;
+ status = acpi_evaluate_integer(handle, "_SUN", NULL, &sun);
+ if (ACPI_FAILURE(status))
+ sun = bridge->nr_slots;
dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
- slot->sun, pci_domain_nr(pbus), pbus->number, device);
- retval = acpiphp_register_hotplug_slot(slot);
+ sun, pci_domain_nr(pbus), pbus->number, device);
+
+ retval = acpiphp_register_hotplug_slot(slot, sun);
if (retval) {
+ slot->slot = NULL;
+ bridge->nr_slots--;
if (retval == -EBUSY)
warn("Slot %llu already registered by another "
- "hotplug driver\n", slot->sun);
+ "hotplug driver\n", sun);
else
warn("acpiphp_register_hotplug_slot failed "
"(err code = 0x%x)\n", retval);
- goto err_exit;
}
+ /* Even if the slot registration fails, we can still use it. */
}
+ slot_found:
newfunc->slot = slot;
- mutex_lock(&bridge_mutex);
list_add_tail(&newfunc->sibling, &slot->funcs);
- mutex_unlock(&bridge_mutex);
if (pci_bus_read_dev_vendor_id(pbus, PCI_DEVFN(device, function),
&val, 60*1000))
- slot->flags |= (SLOT_ENABLED | SLOT_POWEREDON);
+ slot->flags |= SLOT_ENABLED;
if (is_dock_device(handle)) {
/* we don't want to call this device's _EJ0
@@ -313,136 +367,46 @@
*/
newfunc->flags &= ~FUNC_HAS_EJ0;
if (register_hotplug_dock_device(handle,
- &acpiphp_dock_ops, newfunc,
+ &acpiphp_dock_ops, context,
acpiphp_dock_init, acpiphp_dock_release))
dbg("failed to register dock device\n");
-
- /* we need to be notified when dock events happen
- * outside of the hotplug operation, since we may
- * need to do fixups before we can hotplug.
- */
- newfunc->nb.notifier_call = post_dock_fixups;
- if (register_dock_notifier(&newfunc->nb))
- dbg("failed to register a dock notifier");
}
/* install notify handler */
if (!(newfunc->flags & FUNC_HAS_DCK)) {
- status = acpi_install_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- handle_hotplug_event_func,
- newfunc);
-
+ status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
+ handle_hotplug_event,
+ context);
if (ACPI_FAILURE(status))
- err("failed to register interrupt notify handler\n");
- } else
- status = AE_OK;
-
- return status;
-
- err_exit:
- bridge->nr_slots--;
- mutex_lock(&bridge_mutex);
- list_del(&slot->node);
- mutex_unlock(&bridge_mutex);
- kfree(slot);
- kfree(newfunc);
+ acpi_handle_err(handle,
+ "failed to install notify handler\n");
+ }
return AE_OK;
+
+ err:
+ mutex_lock(&acpiphp_context_lock);
+ acpiphp_put_context(context);
+ mutex_unlock(&acpiphp_context_lock);
+ return status;
}
-
-/* see if it's worth looking at this bridge */
-static int detect_ejectable_slots(acpi_handle handle)
-{
- int found = acpi_pci_detect_ejectable(handle);
- if (!found) {
- acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, (u32)1,
- is_pci_dock_device, NULL, (void *)&found, NULL);
- }
- return found;
-}
-
-/* initialize miscellaneous stuff for both root and PCI-to-PCI bridge */
-static void init_bridge_misc(struct acpiphp_bridge *bridge)
-{
- acpi_status status;
-
- /* must be added to the list prior to calling register_slot */
- mutex_lock(&bridge_mutex);
- list_add(&bridge->list, &bridge_list);
- mutex_unlock(&bridge_mutex);
-
- /* register all slot objects under this bridge */
- status = acpi_walk_namespace(ACPI_TYPE_DEVICE, bridge->handle, (u32)1,
- register_slot, NULL, bridge, NULL);
- if (ACPI_FAILURE(status)) {
- mutex_lock(&bridge_mutex);
- list_del(&bridge->list);
- mutex_unlock(&bridge_mutex);
- return;
- }
-
- /* install notify handler for P2P bridges */
- if (!pci_is_root_bus(bridge->pci_bus)) {
- if ((bridge->flags & BRIDGE_HAS_EJ0) && bridge->func) {
- status = acpi_remove_notify_handler(bridge->func->handle,
- ACPI_SYSTEM_NOTIFY,
- handle_hotplug_event_func);
- if (ACPI_FAILURE(status))
- err("failed to remove notify handler\n");
- }
- status = acpi_install_notify_handler(bridge->handle,
- ACPI_SYSTEM_NOTIFY,
- handle_hotplug_event_bridge,
- bridge);
-
- if (ACPI_FAILURE(status)) {
- err("failed to register interrupt notify handler\n");
- }
- }
-}
-
-
-/* find acpiphp_func from acpiphp_bridge */
-static struct acpiphp_func *acpiphp_bridge_handle_to_function(acpi_handle handle)
-{
- struct acpiphp_bridge *bridge;
- struct acpiphp_slot *slot;
- struct acpiphp_func *func = NULL;
-
- mutex_lock(&bridge_mutex);
- list_for_each_entry(bridge, &bridge_list, list) {
- list_for_each_entry(slot, &bridge->slots, node) {
- list_for_each_entry(func, &slot->funcs, sibling) {
- if (func->handle == handle) {
- get_bridge(func->slot->bridge);
- mutex_unlock(&bridge_mutex);
- return func;
- }
- }
- }
- }
- mutex_unlock(&bridge_mutex);
-
- return NULL;
-}
-
-
static struct acpiphp_bridge *acpiphp_handle_to_bridge(acpi_handle handle)
{
- struct acpiphp_bridge *bridge;
+ struct acpiphp_context *context;
+ struct acpiphp_bridge *bridge = NULL;
- mutex_lock(&bridge_mutex);
- list_for_each_entry(bridge, &bridge_list, list)
- if (bridge->handle == handle) {
+ mutex_lock(&acpiphp_context_lock);
+ context = acpiphp_get_context(handle);
+ if (context) {
+ bridge = context->bridge;
+ if (bridge)
get_bridge(bridge);
- mutex_unlock(&bridge_mutex);
- return bridge;
- }
- mutex_unlock(&bridge_mutex);
- return NULL;
+ acpiphp_put_context(context);
+ }
+ mutex_unlock(&acpiphp_context_lock);
+ return bridge;
}
static void cleanup_bridge(struct acpiphp_bridge *bridge)
@@ -450,40 +414,24 @@
struct acpiphp_slot *slot;
struct acpiphp_func *func;
acpi_status status;
- acpi_handle handle = bridge->handle;
-
- if (!pci_is_root_bus(bridge->pci_bus)) {
- status = acpi_remove_notify_handler(handle,
- ACPI_SYSTEM_NOTIFY,
- handle_hotplug_event_bridge);
- if (ACPI_FAILURE(status))
- err("failed to remove notify handler\n");
- }
-
- if ((bridge->flags & BRIDGE_HAS_EJ0) && bridge->func) {
- status = acpi_install_notify_handler(bridge->func->handle,
- ACPI_SYSTEM_NOTIFY,
- handle_hotplug_event_func,
- bridge->func);
- if (ACPI_FAILURE(status))
- err("failed to install interrupt notify handler\n");
- }
list_for_each_entry(slot, &bridge->slots, node) {
list_for_each_entry(func, &slot->funcs, sibling) {
- if (is_dock_device(func->handle)) {
- unregister_hotplug_dock_device(func->handle);
- unregister_dock_notifier(&func->nb);
- }
+ acpi_handle handle = func_to_handle(func);
+
+ if (is_dock_device(handle))
+ unregister_hotplug_dock_device(handle);
+
if (!(func->flags & FUNC_HAS_DCK)) {
- status = acpi_remove_notify_handler(func->handle,
- ACPI_SYSTEM_NOTIFY,
- handle_hotplug_event_func);
+ status = acpi_remove_notify_handler(handle,
+ ACPI_SYSTEM_NOTIFY,
+ handle_hotplug_event);
if (ACPI_FAILURE(status))
err("failed to remove notify handler\n");
}
}
- acpiphp_unregister_hotplug_slot(slot);
+ if (slot->slot)
+ acpiphp_unregister_hotplug_slot(slot);
}
mutex_lock(&bridge_mutex);
@@ -491,71 +439,6 @@
mutex_unlock(&bridge_mutex);
}
-static int power_on_slot(struct acpiphp_slot *slot)
-{
- acpi_status status;
- struct acpiphp_func *func;
- int retval = 0;
-
- /* if already enabled, just skip */
- if (slot->flags & SLOT_POWEREDON)
- goto err_exit;
-
- list_for_each_entry(func, &slot->funcs, sibling) {
- if (func->flags & FUNC_HAS_PS0) {
- dbg("%s: executing _PS0\n", __func__);
- status = acpi_evaluate_object(func->handle, "_PS0", NULL, NULL);
- if (ACPI_FAILURE(status)) {
- warn("%s: _PS0 failed\n", __func__);
- retval = -1;
- goto err_exit;
- } else
- break;
- }
- }
-
- /* TBD: evaluate _STA to check if the slot is enabled */
-
- slot->flags |= SLOT_POWEREDON;
-
- err_exit:
- return retval;
-}
-
-
-static int power_off_slot(struct acpiphp_slot *slot)
-{
- acpi_status status;
- struct acpiphp_func *func;
-
- int retval = 0;
-
- /* if already disabled, just skip */
- if ((slot->flags & SLOT_POWEREDON) == 0)
- goto err_exit;
-
- list_for_each_entry(func, &slot->funcs, sibling) {
- if (func->flags & FUNC_HAS_PS3) {
- status = acpi_evaluate_object(func->handle, "_PS3", NULL, NULL);
- if (ACPI_FAILURE(status)) {
- warn("%s: _PS3 failed\n", __func__);
- retval = -1;
- goto err_exit;
- } else
- break;
- }
- }
-
- /* TBD: evaluate _STA to check if the slot is disabled */
-
- slot->flags &= (~SLOT_POWEREDON);
-
- err_exit:
- return retval;
-}
-
-
-
/**
* acpiphp_max_busnr - return the highest reserved bus number under the given bus.
* @bus: bus to start search with
@@ -583,52 +466,32 @@
return max;
}
-
/**
- * acpiphp_bus_add - add a new bus to acpi subsystem
- * @func: acpiphp_func of the bridge
+ * acpiphp_bus_trim - Trim device objects in an ACPI namespace subtree.
+ * @handle: ACPI device object handle to start from.
*/
-static int acpiphp_bus_add(struct acpiphp_func *func)
+static void acpiphp_bus_trim(acpi_handle handle)
{
- struct acpi_device *device;
- int ret_val;
+ struct acpi_device *adev = NULL;
- if (!acpi_bus_get_device(func->handle, &device)) {
- dbg("bus exists... trim\n");
- /* this shouldn't be in here, so remove
- * the bus then re-add it...
- */
- acpi_bus_trim(device);
- }
-
- ret_val = acpi_bus_scan(func->handle);
- if (!ret_val)
- ret_val = acpi_bus_get_device(func->handle, &device);
-
- if (ret_val)
- dbg("error adding bus, %x\n", -ret_val);
-
- return ret_val;
+ acpi_bus_get_device(handle, &adev);
+ if (adev)
+ acpi_bus_trim(adev);
}
-
/**
- * acpiphp_bus_trim - trim a bus from acpi subsystem
- * @handle: handle to acpi namespace
+ * acpiphp_bus_add - Scan ACPI namespace subtree.
+ * @handle: ACPI object handle to start the scan from.
*/
-static int acpiphp_bus_trim(acpi_handle handle)
+static void acpiphp_bus_add(acpi_handle handle)
{
- struct acpi_device *device;
- int retval;
+ struct acpi_device *adev = NULL;
- retval = acpi_bus_get_device(handle, &device);
- if (retval) {
- dbg("acpi_device not found\n");
- return retval;
- }
-
- acpi_bus_trim(device);
- return 0;
+ acpiphp_bus_trim(handle);
+ acpi_bus_scan(handle);
+ acpi_bus_get_device(handle, &adev);
+ if (adev)
+ acpi_device_set_power(adev, ACPI_STATE_D0);
}
static void acpiphp_set_acpi_region(struct acpiphp_slot *slot)
@@ -645,7 +508,8 @@
params[1].type = ACPI_TYPE_INTEGER;
params[1].integer.value = 1;
/* _REG is optional, we don't care about if there is failure */
- acpi_evaluate_object(func->handle, "_REG", &arg_list, NULL);
+ acpi_evaluate_object(func_to_handle(func), "_REG", &arg_list,
+ NULL);
}
}
@@ -653,59 +517,44 @@
{
struct acpiphp_func *func;
- if (!dev->subordinate)
- return;
-
/* quirk, or pcie could set it already */
if (dev->is_hotplug_bridge)
return;
- if (PCI_SLOT(dev->devfn) != slot->device)
- return;
-
list_for_each_entry(func, &slot->funcs, sibling) {
if (PCI_FUNC(dev->devfn) == func->function) {
- /* check if this bridge has ejectable slots */
- if ((detect_ejectable_slots(func->handle) > 0))
- dev->is_hotplug_bridge = 1;
+ dev->is_hotplug_bridge = 1;
break;
}
}
}
/**
- * enable_device - enable, configure a slot
+ * enable_slot - enable, configure a slot
* @slot: slot to be enabled
*
* This function should be called per *physical slot*,
* not per each slot object in ACPI namespace.
*/
-static int __ref enable_device(struct acpiphp_slot *slot)
+static void __ref enable_slot(struct acpiphp_slot *slot)
{
struct pci_dev *dev;
- struct pci_bus *bus = slot->bridge->pci_bus;
+ struct pci_bus *bus = slot->bus;
struct acpiphp_func *func;
- int num, max, pass;
+ int max, pass;
LIST_HEAD(add_list);
- if (slot->flags & SLOT_ENABLED)
- goto err_exit;
-
list_for_each_entry(func, &slot->funcs, sibling)
- acpiphp_bus_add(func);
+ acpiphp_bus_add(func_to_handle(func));
- num = pci_scan_slot(bus, PCI_DEVFN(slot->device, 0));
- if (num == 0) {
- /* Maybe only part of funcs are added. */
- dbg("No new device found\n");
- goto err_exit;
- }
+ pci_scan_slot(bus, PCI_DEVFN(slot->device, 0));
max = acpiphp_max_busnr(bus);
for (pass = 0; pass < 2; pass++) {
list_for_each_entry(dev, &bus->devices, bus_list) {
if (PCI_SLOT(dev->devfn) != slot->device)
continue;
+
if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) {
max = pci_scan_bridge(bus, dev, max, pass);
@@ -744,16 +593,12 @@
continue;
}
}
-
-
- err_exit:
- return 0;
}
/* return first device in slot, acquiring a reference on it */
static struct pci_dev *dev_in_slot(struct acpiphp_slot *slot)
{
- struct pci_bus *bus = slot->bridge->pci_bus;
+ struct pci_bus *bus = slot->bus;
struct pci_dev *dev;
struct pci_dev *ret = NULL;
@@ -769,16 +614,16 @@
}
/**
- * disable_device - disable a slot
+ * disable_slot - disable a slot
* @slot: ACPI PHP slot
*/
-static int disable_device(struct acpiphp_slot *slot)
+static void disable_slot(struct acpiphp_slot *slot)
{
struct acpiphp_func *func;
struct pci_dev *pdev;
/*
- * enable_device() enumerates all functions in this device via
+ * enable_slot() enumerates all functions in this device via
* pci_scan_slot(), whether they have associated ACPI hotplug
* methods (_EJ0, etc.) or not. Therefore, we remove all functions
* here.
@@ -788,13 +633,10 @@
pci_dev_put(pdev);
}
- list_for_each_entry(func, &slot->funcs, sibling) {
- acpiphp_bus_trim(func->handle);
- }
+ list_for_each_entry(func, &slot->funcs, sibling)
+ acpiphp_bus_trim(func_to_handle(func));
slot->flags &= (~SLOT_ENABLED);
-
- return 0;
}
@@ -812,18 +654,21 @@
*/
static unsigned int get_slot_status(struct acpiphp_slot *slot)
{
- acpi_status status;
unsigned long long sta = 0;
- u32 dvid;
struct acpiphp_func *func;
list_for_each_entry(func, &slot->funcs, sibling) {
if (func->flags & FUNC_HAS_STA) {
- status = acpi_evaluate_integer(func->handle, "_STA", NULL, &sta);
+ acpi_status status;
+
+ status = acpi_evaluate_integer(func_to_handle(func),
+ "_STA", NULL, &sta);
if (ACPI_SUCCESS(status) && sta)
break;
} else {
- pci_bus_read_config_dword(slot->bridge->pci_bus,
+ u32 dvid;
+
+ pci_bus_read_config_dword(slot->bus,
PCI_DEVFN(slot->device,
func->function),
PCI_VENDOR_ID, &dvid);
@@ -838,34 +683,42 @@
}
/**
- * acpiphp_eject_slot - physically eject the slot
- * @slot: ACPI PHP slot
+ * trim_stale_devices - remove PCI devices that are not responding.
+ * @dev: PCI device to start walking the hierarchy from.
*/
-int acpiphp_eject_slot(struct acpiphp_slot *slot)
+static void trim_stale_devices(struct pci_dev *dev)
{
- acpi_status status;
- struct acpiphp_func *func;
- struct acpi_object_list arg_list;
- union acpi_object arg;
+ acpi_handle handle = ACPI_HANDLE(&dev->dev);
+ struct pci_bus *bus = dev->subordinate;
+ bool alive = false;
- list_for_each_entry(func, &slot->funcs, sibling) {
- /* We don't want to call _EJ0 on non-existing functions. */
- if ((func->flags & FUNC_HAS_EJ0)) {
- /* _EJ0 method take one argument */
- arg_list.count = 1;
- arg_list.pointer = &arg;
- arg.type = ACPI_TYPE_INTEGER;
- arg.integer.value = 1;
+ if (handle) {
+ acpi_status status;
+ unsigned long long sta;
- status = acpi_evaluate_object(func->handle, "_EJ0", &arg_list, NULL);
- if (ACPI_FAILURE(status)) {
- warn("%s: _EJ0 failed\n", __func__);
- return -1;
- } else
- break;
- }
+ status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
+ alive = ACPI_SUCCESS(status) && sta == ACPI_STA_ALL;
}
- return 0;
+ if (!alive) {
+ u32 v;
+
+ /* Check if the device responds. */
+ alive = pci_bus_read_dev_vendor_id(dev->bus, dev->devfn, &v, 0);
+ }
+ if (!alive) {
+ pci_stop_and_remove_bus_device(dev);
+ if (handle)
+ acpiphp_bus_trim(handle);
+ } else if (bus) {
+ struct pci_dev *child, *tmp;
+
+ /* The device is a bridge. so check the bus below it. */
+ pm_runtime_get_sync(&dev->dev);
+ list_for_each_entry_safe(child, tmp, &bus->devices, bus_list)
+ trim_stale_devices(child);
+
+ pm_runtime_put(&dev->dev);
+ }
}
/**
@@ -875,43 +728,30 @@
* Iterate over all slots under this bridge and make sure that if a
* card is present they are enabled, and if not they are disabled.
*/
-static int acpiphp_check_bridge(struct acpiphp_bridge *bridge)
+static void acpiphp_check_bridge(struct acpiphp_bridge *bridge)
{
struct acpiphp_slot *slot;
- int retval = 0;
- int enabled, disabled;
-
- enabled = disabled = 0;
list_for_each_entry(slot, &bridge->slots, node) {
- unsigned int status = get_slot_status(slot);
- if (slot->flags & SLOT_ENABLED) {
- if (status == ACPI_STA_ALL)
- continue;
- retval = acpiphp_disable_slot(slot);
- if (retval) {
- err("Error occurred in disabling\n");
- goto err_exit;
- } else {
- acpiphp_eject_slot(slot);
- }
- disabled++;
+ struct pci_bus *bus = slot->bus;
+ struct pci_dev *dev, *tmp;
+
+ mutex_lock(&slot->crit_sect);
+ /* wake up all functions */
+ if (get_slot_status(slot) == ACPI_STA_ALL) {
+ /* remove stale devices if any */
+ list_for_each_entry_safe(dev, tmp, &bus->devices,
+ bus_list)
+ if (PCI_SLOT(dev->devfn) == slot->device)
+ trim_stale_devices(dev);
+
+ /* configure all functions */
+ enable_slot(slot);
} else {
- if (status != ACPI_STA_ALL)
- continue;
- retval = acpiphp_enable_slot(slot);
- if (retval) {
- err("Error occurred in enabling\n");
- goto err_exit;
- }
- enabled++;
+ disable_slot(slot);
}
+ mutex_unlock(&slot->crit_sect);
}
-
- dbg("%s: %d enabled, %d disabled\n", __func__, enabled, disabled);
-
- err_exit:
- return retval;
}
static void acpiphp_set_hpp_values(struct pci_bus *bus)
@@ -950,25 +790,6 @@
* ACPI event handlers
*/
-static acpi_status
-check_sub_bridges(acpi_handle handle, u32 lvl, void *context, void **rv)
-{
- struct acpiphp_bridge *bridge;
- char objname[64];
- struct acpi_buffer buffer = { .length = sizeof(objname),
- .pointer = objname };
-
- bridge = acpiphp_handle_to_bridge(handle);
- if (bridge) {
- acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
- dbg("%s: re-enumerating slots under %s\n",
- __func__, objname);
- acpiphp_check_bridge(bridge);
- put_bridge(bridge);
- }
- return AE_OK ;
-}
-
void acpiphp_check_host_bridge(acpi_handle handle)
{
struct acpiphp_bridge *bridge;
@@ -978,27 +799,23 @@
acpiphp_check_bridge(bridge);
put_bridge(bridge);
}
-
- acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
- ACPI_UINT32_MAX, check_sub_bridges, NULL, NULL, NULL);
}
-static void _handle_hotplug_event_bridge(struct work_struct *work)
+static void hotplug_event(acpi_handle handle, u32 type, void *data)
{
+ struct acpiphp_context *context = data;
+ struct acpiphp_func *func = &context->func;
struct acpiphp_bridge *bridge;
char objname[64];
struct acpi_buffer buffer = { .length = sizeof(objname),
.pointer = objname };
- struct acpi_hp_work *hp_work;
- acpi_handle handle;
- u32 type;
- hp_work = container_of(work, struct acpi_hp_work, work);
- handle = hp_work->handle;
- type = hp_work->type;
- bridge = (struct acpiphp_bridge *)hp_work->context;
+ mutex_lock(&acpiphp_context_lock);
+ bridge = context->bridge;
+ if (bridge)
+ get_bridge(bridge);
- acpi_scan_lock_acquire();
+ mutex_unlock(&acpiphp_context_lock);
acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
@@ -1007,188 +824,129 @@
/* bus re-enumerate */
dbg("%s: Bus check notify on %s\n", __func__, objname);
dbg("%s: re-enumerating slots under %s\n", __func__, objname);
- acpiphp_check_bridge(bridge);
- acpi_walk_namespace(ACPI_TYPE_DEVICE, handle,
- ACPI_UINT32_MAX, check_sub_bridges, NULL, NULL, NULL);
+ if (bridge) {
+ acpiphp_check_bridge(bridge);
+ } else {
+ struct acpiphp_slot *slot = func->slot;
+
+ mutex_lock(&slot->crit_sect);
+ enable_slot(slot);
+ mutex_unlock(&slot->crit_sect);
+ }
break;
case ACPI_NOTIFY_DEVICE_CHECK:
/* device check */
dbg("%s: Device check notify on %s\n", __func__, objname);
- acpiphp_check_bridge(bridge);
- break;
+ if (bridge)
+ acpiphp_check_bridge(bridge);
+ else
+ acpiphp_check_bridge(func->parent);
- case ACPI_NOTIFY_DEVICE_WAKE:
- /* wake event */
- dbg("%s: Device wake notify on %s\n", __func__, objname);
break;
case ACPI_NOTIFY_EJECT_REQUEST:
/* request device eject */
dbg("%s: Device eject notify on %s\n", __func__, objname);
- if ((bridge->flags & BRIDGE_HAS_EJ0) && bridge->func) {
- struct acpiphp_slot *slot;
- slot = bridge->func->slot;
- if (!acpiphp_disable_slot(slot))
- acpiphp_eject_slot(slot);
- }
- break;
-
- case ACPI_NOTIFY_FREQUENCY_MISMATCH:
- printk(KERN_ERR "Device %s cannot be configured due"
- " to a frequency mismatch\n", objname);
- break;
-
- case ACPI_NOTIFY_BUS_MODE_MISMATCH:
- printk(KERN_ERR "Device %s cannot be configured due"
- " to a bus mode mismatch\n", objname);
- break;
-
- case ACPI_NOTIFY_POWER_FAULT:
- printk(KERN_ERR "Device %s has suffered a power fault\n",
- objname);
- break;
-
- default:
- warn("notify_handler: unknown event type 0x%x for %s\n", type, objname);
+ acpiphp_disable_and_eject_slot(func->slot);
break;
}
- acpi_scan_lock_release();
- kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
- put_bridge(bridge);
+ if (bridge)
+ put_bridge(bridge);
}
-/**
- * handle_hotplug_event_bridge - handle ACPI event on bridges
- * @handle: Notify()'ed acpi_handle
- * @type: Notify code
- * @context: pointer to acpiphp_bridge structure
- *
- * Handles ACPI event notification on {host,p2p} bridges.
- */
-static void handle_hotplug_event_bridge(acpi_handle handle, u32 type,
- void *context)
+static void hotplug_event_work(struct work_struct *work)
{
- struct acpiphp_bridge *bridge = context;
-
- /*
- * Currently the code adds all hotplug events to the kacpid_wq
- * queue when it should add hotplug events to the kacpi_hotplug_wq.
- * The proper way to fix this is to reorganize the code so that
- * drivers (dock, etc.) do not call acpi_os_execute(), etc.
- * For now just re-add this work to the kacpi_hotplug_wq so we
- * don't deadlock on hotplug actions.
- */
- get_bridge(bridge);
- alloc_acpi_hp_work(handle, type, context, _handle_hotplug_event_bridge);
-}
-
-static void hotplug_event_func(acpi_handle handle, u32 type, void *context)
-{
- struct acpiphp_func *func = context;
- char objname[64];
- struct acpi_buffer buffer = { .length = sizeof(objname),
- .pointer = objname };
-
- acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer);
-
- switch (type) {
- case ACPI_NOTIFY_BUS_CHECK:
- /* bus re-enumerate */
- dbg("%s: Bus check notify on %s\n", __func__, objname);
- acpiphp_enable_slot(func->slot);
- break;
-
- case ACPI_NOTIFY_DEVICE_CHECK:
- /* device check : re-enumerate from parent bus */
- dbg("%s: Device check notify on %s\n", __func__, objname);
- acpiphp_check_bridge(func->slot->bridge);
- break;
-
- case ACPI_NOTIFY_DEVICE_WAKE:
- /* wake event */
- dbg("%s: Device wake notify on %s\n", __func__, objname);
- break;
-
- case ACPI_NOTIFY_EJECT_REQUEST:
- /* request device eject */
- dbg("%s: Device eject notify on %s\n", __func__, objname);
- if (!(acpiphp_disable_slot(func->slot)))
- acpiphp_eject_slot(func->slot);
- break;
-
- default:
- warn("notify_handler: unknown event type 0x%x for %s\n", type, objname);
- break;
- }
-}
-
-static void _handle_hotplug_event_func(struct work_struct *work)
-{
+ struct acpiphp_context *context;
struct acpi_hp_work *hp_work;
- struct acpiphp_func *func;
hp_work = container_of(work, struct acpi_hp_work, work);
- func = hp_work->context;
+ context = hp_work->context;
acpi_scan_lock_acquire();
- hotplug_event_func(hp_work->handle, hp_work->type, func);
+ hotplug_event(hp_work->handle, hp_work->type, context);
acpi_scan_lock_release();
- kfree(hp_work); /* allocated in handle_hotplug_event_func */
- put_bridge(func->slot->bridge);
+ kfree(hp_work); /* allocated in handle_hotplug_event() */
+ put_bridge(context->func.parent);
}
/**
- * handle_hotplug_event_func - handle ACPI event on functions (i.e. slots)
+ * handle_hotplug_event - handle ACPI hotplug event
* @handle: Notify()'ed acpi_handle
* @type: Notify code
- * @context: pointer to acpiphp_func structure
+ * @data: pointer to acpiphp_context structure
*
* Handles ACPI event notification on slots.
*/
-static void handle_hotplug_event_func(acpi_handle handle, u32 type,
- void *context)
+static void handle_hotplug_event(acpi_handle handle, u32 type, void *data)
{
- struct acpiphp_func *func = context;
+ struct acpiphp_context *context;
- /*
- * Currently the code adds all hotplug events to the kacpid_wq
- * queue when it should add hotplug events to the kacpi_hotplug_wq.
- * The proper way to fix this is to reorganize the code so that
- * drivers (dock, etc.) do not call acpi_os_execute(), etc.
- * For now just re-add this work to the kacpi_hotplug_wq so we
- * don't deadlock on hotplug actions.
- */
- get_bridge(func->slot->bridge);
- alloc_acpi_hp_work(handle, type, context, _handle_hotplug_event_func);
+ switch (type) {
+ case ACPI_NOTIFY_BUS_CHECK:
+ case ACPI_NOTIFY_DEVICE_CHECK:
+ case ACPI_NOTIFY_EJECT_REQUEST:
+ break;
+
+ case ACPI_NOTIFY_DEVICE_WAKE:
+ return;
+
+ case ACPI_NOTIFY_FREQUENCY_MISMATCH:
+ acpi_handle_err(handle, "Device cannot be configured due "
+ "to a frequency mismatch\n");
+ return;
+
+ case ACPI_NOTIFY_BUS_MODE_MISMATCH:
+ acpi_handle_err(handle, "Device cannot be configured due "
+ "to a bus mode mismatch\n");
+ return;
+
+ case ACPI_NOTIFY_POWER_FAULT:
+ acpi_handle_err(handle, "Device has suffered a power fault\n");
+ return;
+
+ default:
+ acpi_handle_warn(handle, "Unsupported event type 0x%x\n", type);
+ return;
+ }
+
+ mutex_lock(&acpiphp_context_lock);
+ context = acpiphp_get_context(handle);
+ if (context) {
+ get_bridge(context->func.parent);
+ acpiphp_put_context(context);
+ alloc_acpi_hp_work(handle, type, context, hotplug_event_work);
+ }
+ mutex_unlock(&acpiphp_context_lock);
}
/*
* Create hotplug slots for the PCI bus.
* It should always return 0 to avoid skipping following notifiers.
*/
-void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle)
+void acpiphp_enumerate_slots(struct pci_bus *bus)
{
- acpi_handle dummy_handle;
struct acpiphp_bridge *bridge;
+ acpi_handle handle;
+ acpi_status status;
if (acpiphp_disabled)
return;
- if (detect_ejectable_slots(handle) <= 0)
+ handle = ACPI_HANDLE(bus->bridge);
+ if (!handle)
return;
bridge = kzalloc(sizeof(struct acpiphp_bridge), GFP_KERNEL);
- if (bridge == NULL) {
- err("out of memory\n");
+ if (!bridge) {
+ acpi_handle_err(handle, "No memory for bridge object\n");
return;
}
INIT_LIST_HEAD(&bridge->slots);
kref_init(&bridge->ref);
- bridge->handle = handle;
bridge->pci_dev = pci_dev_get(bus->self);
bridge->pci_bus = bus;
@@ -1199,31 +957,62 @@
*/
get_device(&bus->dev);
- if (!pci_is_root_bus(bridge->pci_bus) &&
- ACPI_SUCCESS(acpi_get_handle(bridge->handle,
- "_EJ0", &dummy_handle))) {
- dbg("found ejectable p2p bridge\n");
- bridge->flags |= BRIDGE_HAS_EJ0;
- bridge->func = acpiphp_bridge_handle_to_function(handle);
+ if (!pci_is_root_bus(bridge->pci_bus)) {
+ struct acpiphp_context *context;
+
+ /*
+ * This bridge should have been registered as a hotplug function
+ * under its parent, so the context has to be there. If not, we
+ * are in deep goo.
+ */
+ mutex_lock(&acpiphp_context_lock);
+ context = acpiphp_get_context(handle);
+ if (WARN_ON(!context)) {
+ mutex_unlock(&acpiphp_context_lock);
+ put_device(&bus->dev);
+ kfree(bridge);
+ return;
+ }
+ bridge->context = context;
+ context->bridge = bridge;
+ /* Get a reference to the parent bridge. */
+ get_bridge(context->func.parent);
+ mutex_unlock(&acpiphp_context_lock);
}
- init_bridge_misc(bridge);
+ /* must be added to the list prior to calling register_slot */
+ mutex_lock(&bridge_mutex);
+ list_add(&bridge->list, &bridge_list);
+ mutex_unlock(&bridge_mutex);
+
+ /* register all slot objects under this bridge */
+ status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
+ register_slot, NULL, bridge, NULL);
+ if (ACPI_FAILURE(status)) {
+ acpi_handle_err(handle, "failed to register slots\n");
+ cleanup_bridge(bridge);
+ put_bridge(bridge);
+ }
}
/* Destroy hotplug slots associated with the PCI bus */
void acpiphp_remove_slots(struct pci_bus *bus)
{
- struct acpiphp_bridge *bridge, *tmp;
+ struct acpiphp_bridge *bridge;
if (acpiphp_disabled)
return;
- list_for_each_entry_safe(bridge, tmp, &bridge_list, list)
+ mutex_lock(&bridge_mutex);
+ list_for_each_entry(bridge, &bridge_list, list)
if (bridge->pci_bus == bus) {
+ mutex_unlock(&bridge_mutex);
cleanup_bridge(bridge);
put_bridge(bridge);
- break;
+ return;
}
+
+ mutex_unlock(&bridge_mutex);
}
/**
@@ -1232,51 +1021,39 @@
*/
int acpiphp_enable_slot(struct acpiphp_slot *slot)
{
- int retval;
-
mutex_lock(&slot->crit_sect);
+ /* configure all functions */
+ if (!(slot->flags & SLOT_ENABLED))
+ enable_slot(slot);
- /* wake up all functions */
- retval = power_on_slot(slot);
- if (retval)
- goto err_exit;
-
- if (get_slot_status(slot) == ACPI_STA_ALL) {
- /* configure all functions */
- retval = enable_device(slot);
- if (retval)
- power_off_slot(slot);
- } else {
- dbg("%s: Slot status is not ACPI_STA_ALL\n", __func__);
- power_off_slot(slot);
- }
-
- err_exit:
mutex_unlock(&slot->crit_sect);
- return retval;
+ return 0;
}
/**
- * acpiphp_disable_slot - power off slot
+ * acpiphp_disable_and_eject_slot - power off and eject slot
* @slot: ACPI PHP slot
*/
-int acpiphp_disable_slot(struct acpiphp_slot *slot)
+int acpiphp_disable_and_eject_slot(struct acpiphp_slot *slot)
{
+ struct acpiphp_func *func;
int retval = 0;
mutex_lock(&slot->crit_sect);
/* unconfigure all functions */
- retval = disable_device(slot);
- if (retval)
- goto err_exit;
+ disable_slot(slot);
- /* power off all functions */
- retval = power_off_slot(slot);
- if (retval)
- goto err_exit;
+ list_for_each_entry(func, &slot->funcs, sibling)
+ if (func->flags & FUNC_HAS_EJ0) {
+ acpi_handle handle = func_to_handle(func);
- err_exit:
+ if (ACPI_FAILURE(acpi_evaluate_ej0(handle)))
+ acpi_handle_err(handle, "_EJ0 failed\n");
+
+ break;
+ }
+
mutex_unlock(&slot->crit_sect);
return retval;
}
@@ -1288,7 +1065,7 @@
*/
u8 acpiphp_get_power_status(struct acpiphp_slot *slot)
{
- return (slot->flags & SLOT_POWEREDON);
+ return (slot->flags & SLOT_ENABLED);
}
@@ -1298,11 +1075,7 @@
*/
u8 acpiphp_get_latch_status(struct acpiphp_slot *slot)
{
- unsigned int sta;
-
- sta = get_slot_status(slot);
-
- return (sta & ACPI_STA_DEVICE_UI) ? 0 : 1;
+ return !(get_slot_status(slot) & ACPI_STA_DEVICE_UI);
}
@@ -1312,9 +1085,5 @@
*/
u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot)
{
- unsigned int sta;
-
- sta = get_slot_status(slot);
-
- return (sta == 0) ? 0 : 1;
+ return !!get_slot_status(slot);
}
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 5394fff..2f5786c 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -66,7 +66,7 @@
#define IBM_HARDWARE_ID1 "IBM37D0"
#define IBM_HARDWARE_ID2 "IBM37D4"
-#define hpslot_to_sun(A) (((struct slot *)((A)->private))->acpi_slot->sun)
+#define hpslot_to_sun(A) (((struct slot *)((A)->private))->sun)
/* union apci_descriptor - allows access to the
* various device descriptors that are embedded in the
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 01e264f..7c29ee4 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -210,7 +210,7 @@
}
if (!error)
- dev_info(&dev->dev, "power state changed by ACPI to %s\n",
+ dev_dbg(&dev->dev, "power state changed by ACPI to %s\n",
acpi_power_state_string(state_conv[state]));
return error;
@@ -290,24 +290,16 @@
void acpi_pci_add_bus(struct pci_bus *bus)
{
- acpi_handle handle = NULL;
-
- if (bus->bridge)
- handle = ACPI_HANDLE(bus->bridge);
- if (acpi_pci_disabled || handle == NULL)
+ if (acpi_pci_disabled || !bus->bridge)
return;
- acpi_pci_slot_enumerate(bus, handle);
- acpiphp_enumerate_slots(bus, handle);
+ acpi_pci_slot_enumerate(bus);
+ acpiphp_enumerate_slots(bus);
}
void acpi_pci_remove_bus(struct pci_bus *bus)
{
- /*
- * bus->bridge->acpi_node.handle has already been reset to NULL
- * when acpi_pci_remove_bus() is called, so don't check ACPI handle.
- */
- if (acpi_pci_disabled)
+ if (acpi_pci_disabled || !bus->bridge)
return;
acpiphp_remove_slots(bus);
diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c
index c47fd1e..94716c7 100644
--- a/drivers/pinctrl/pinctrl-sunxi.c
+++ b/drivers/pinctrl/pinctrl-sunxi.c
@@ -278,6 +278,7 @@
{
struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
struct sunxi_pinctrl_group *g = &pctl->groups[group];
+ unsigned long flags;
u32 val, mask;
u16 strength;
u8 dlevel;
@@ -295,22 +296,35 @@
* 3: 40mA
*/
dlevel = strength / 10 - 1;
+
+ spin_lock_irqsave(&pctl->lock, flags);
+
val = readl(pctl->membase + sunxi_dlevel_reg(g->pin));
mask = DLEVEL_PINS_MASK << sunxi_dlevel_offset(g->pin);
writel((val & ~mask) | dlevel << sunxi_dlevel_offset(g->pin),
pctl->membase + sunxi_dlevel_reg(g->pin));
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
break;
case PIN_CONFIG_BIAS_PULL_UP:
+ spin_lock_irqsave(&pctl->lock, flags);
+
val = readl(pctl->membase + sunxi_pull_reg(g->pin));
mask = PULL_PINS_MASK << sunxi_pull_offset(g->pin);
writel((val & ~mask) | 1 << sunxi_pull_offset(g->pin),
pctl->membase + sunxi_pull_reg(g->pin));
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
break;
case PIN_CONFIG_BIAS_PULL_DOWN:
+ spin_lock_irqsave(&pctl->lock, flags);
+
val = readl(pctl->membase + sunxi_pull_reg(g->pin));
mask = PULL_PINS_MASK << sunxi_pull_offset(g->pin);
writel((val & ~mask) | 2 << sunxi_pull_offset(g->pin),
pctl->membase + sunxi_pull_reg(g->pin));
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
break;
default:
break;
@@ -360,11 +374,17 @@
u8 config)
{
struct sunxi_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
+ unsigned long flags;
+ u32 val, mask;
- u32 val = readl(pctl->membase + sunxi_mux_reg(pin));
- u32 mask = MUX_PINS_MASK << sunxi_mux_offset(pin);
+ spin_lock_irqsave(&pctl->lock, flags);
+
+ val = readl(pctl->membase + sunxi_mux_reg(pin));
+ mask = MUX_PINS_MASK << sunxi_mux_offset(pin);
writel((val & ~mask) | config << sunxi_mux_offset(pin),
pctl->membase + sunxi_mux_reg(pin));
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
}
static int sunxi_pmx_enable(struct pinctrl_dev *pctldev,
@@ -464,8 +484,21 @@
struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev);
u32 reg = sunxi_data_reg(offset);
u8 index = sunxi_data_offset(offset);
+ unsigned long flags;
+ u32 regval;
- writel((value & DATA_PINS_MASK) << index, pctl->membase + reg);
+ spin_lock_irqsave(&pctl->lock, flags);
+
+ regval = readl(pctl->membase + reg);
+
+ if (value)
+ regval |= BIT(index);
+ else
+ regval &= ~(BIT(index));
+
+ writel(regval, pctl->membase + reg);
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
}
static int sunxi_pinctrl_gpio_of_xlate(struct gpio_chip *gc,
@@ -526,6 +559,8 @@
struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
u32 reg = sunxi_irq_cfg_reg(d->hwirq);
u8 index = sunxi_irq_cfg_offset(d->hwirq);
+ unsigned long flags;
+ u32 regval;
u8 mode;
switch (type) {
@@ -548,7 +583,13 @@
return -EINVAL;
}
- writel((mode & IRQ_CFG_IRQ_MASK) << index, pctl->membase + reg);
+ spin_lock_irqsave(&pctl->lock, flags);
+
+ regval = readl(pctl->membase + reg);
+ regval &= ~IRQ_CFG_IRQ_MASK;
+ writel(regval | (mode << index), pctl->membase + reg);
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
return 0;
}
@@ -560,14 +601,19 @@
u8 ctrl_idx = sunxi_irq_ctrl_offset(d->hwirq);
u32 status_reg = sunxi_irq_status_reg(d->hwirq);
u8 status_idx = sunxi_irq_status_offset(d->hwirq);
+ unsigned long flags;
u32 val;
+ spin_lock_irqsave(&pctl->lock, flags);
+
/* Mask the IRQ */
val = readl(pctl->membase + ctrl_reg);
writel(val & ~(1 << ctrl_idx), pctl->membase + ctrl_reg);
/* Clear the IRQ */
writel(1 << status_idx, pctl->membase + status_reg);
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
}
static void sunxi_pinctrl_irq_mask(struct irq_data *d)
@@ -575,11 +621,16 @@
struct sunxi_pinctrl *pctl = irq_data_get_irq_chip_data(d);
u32 reg = sunxi_irq_ctrl_reg(d->hwirq);
u8 idx = sunxi_irq_ctrl_offset(d->hwirq);
+ unsigned long flags;
u32 val;
+ spin_lock_irqsave(&pctl->lock, flags);
+
/* Mask the IRQ */
val = readl(pctl->membase + reg);
writel(val & ~(1 << idx), pctl->membase + reg);
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
}
static void sunxi_pinctrl_irq_unmask(struct irq_data *d)
@@ -588,6 +639,7 @@
struct sunxi_desc_function *func;
u32 reg = sunxi_irq_ctrl_reg(d->hwirq);
u8 idx = sunxi_irq_ctrl_offset(d->hwirq);
+ unsigned long flags;
u32 val;
func = sunxi_pinctrl_desc_find_function_by_pin(pctl,
@@ -597,9 +649,13 @@
/* Change muxing to INT mode */
sunxi_pmx_set(pctl->pctl_dev, pctl->irq_array[d->hwirq], func->muxval);
+ spin_lock_irqsave(&pctl->lock, flags);
+
/* Unmask the IRQ */
val = readl(pctl->membase + reg);
writel(val | (1 << idx), pctl->membase + reg);
+
+ spin_unlock_irqrestore(&pctl->lock, flags);
}
static struct irq_chip sunxi_pinctrl_irq_chip = {
@@ -752,6 +808,8 @@
return -ENOMEM;
platform_set_drvdata(pdev, pctl);
+ spin_lock_init(&pctl->lock);
+
pctl->membase = of_iomap(node, 0);
if (!pctl->membase)
return -ENOMEM;
diff --git a/drivers/pinctrl/pinctrl-sunxi.h b/drivers/pinctrl/pinctrl-sunxi.h
index d68047d..01c494f 100644
--- a/drivers/pinctrl/pinctrl-sunxi.h
+++ b/drivers/pinctrl/pinctrl-sunxi.h
@@ -14,6 +14,7 @@
#define __PINCTRL_SUNXI_H
#include <linux/kernel.h>
+#include <linux/spinlock.h>
#define PA_BASE 0
#define PB_BASE 32
@@ -407,6 +408,7 @@
unsigned ngroups;
int irq;
int irq_array[SUNXI_IRQ_NUMBER];
+ spinlock_t lock;
struct pinctrl_dev *pctl_dev;
};
diff --git a/drivers/platform/olpc/olpc-ec.c b/drivers/platform/olpc/olpc-ec.c
index 0f9f859..f911952 100644
--- a/drivers/platform/olpc/olpc-ec.c
+++ b/drivers/platform/olpc/olpc-ec.c
@@ -330,7 +330,7 @@
return platform_driver_register(&olpc_ec_plat_driver);
}
-module_init(olpc_ec_init_module);
+arch_initcall(olpc_ec_init_module);
MODULE_AUTHOR("Andres Salomon <dilinger@queued.net>");
MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 97bb05e..d6970f4 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -53,7 +53,6 @@
#define HPWMI_ALS_QUERY 0x3
#define HPWMI_HARDWARE_QUERY 0x4
#define HPWMI_WIRELESS_QUERY 0x5
-#define HPWMI_BIOS_QUERY 0x9
#define HPWMI_HOTKEY_QUERY 0xc
#define HPWMI_WIRELESS2_QUERY 0x1b
#define HPWMI_POSTCODEERROR_QUERY 0x2a
@@ -293,19 +292,6 @@
return (state & 0x4) ? 1 : 0;
}
-static int hp_wmi_enable_hotkeys(void)
-{
- int ret;
- int query = 0x6e;
-
- ret = hp_wmi_perform_query(HPWMI_BIOS_QUERY, 1, &query, sizeof(query),
- 0);
-
- if (ret)
- return -EINVAL;
- return 0;
-}
-
static int hp_wmi_set_block(void *data, bool blocked)
{
enum hp_wmi_radio r = (enum hp_wmi_radio) data;
@@ -1009,8 +995,6 @@
err = hp_wmi_input_setup();
if (err)
return err;
-
- hp_wmi_enable_hotkeys();
}
if (bios_capable) {
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 069821b..d3fd520 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -2437,7 +2437,10 @@
if (pos < 0)
return pos;
- return snprintf(buffer, PAGE_SIZE, "%s\n", pos ? "speed" : "stamina");
+ return snprintf(buffer, PAGE_SIZE, "%s\n",
+ pos == SPEED ? "speed" :
+ pos == STAMINA ? "stamina" :
+ pos == AUTO ? "auto" : "unknown");
}
static int sony_nc_gfx_switch_setup(struct platform_device *pd,
@@ -4316,7 +4319,8 @@
goto err_free_resources;
}
- if (sonypi_compat_init())
+ result = sonypi_compat_init();
+ if (result)
goto err_remove_input;
/* request io port */
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 00e94032..12adb43 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -154,7 +154,7 @@
return 1;
}
-static int pnp_bus_suspend(struct device *dev, pm_message_t state)
+static int __pnp_bus_suspend(struct device *dev, pm_message_t state)
{
struct pnp_dev *pnp_dev = to_pnp_dev(dev);
struct pnp_driver *pnp_drv = pnp_dev->driver;
@@ -180,6 +180,16 @@
return 0;
}
+static int pnp_bus_suspend(struct device *dev)
+{
+ return __pnp_bus_suspend(dev, PMSG_SUSPEND);
+}
+
+static int pnp_bus_freeze(struct device *dev)
+{
+ return __pnp_bus_suspend(dev, PMSG_FREEZE);
+}
+
static int pnp_bus_resume(struct device *dev)
{
struct pnp_dev *pnp_dev = to_pnp_dev(dev);
@@ -210,14 +220,19 @@
return 0;
}
+static const struct dev_pm_ops pnp_bus_dev_pm_ops = {
+ .suspend = pnp_bus_suspend,
+ .freeze = pnp_bus_freeze,
+ .resume = pnp_bus_resume,
+};
+
struct bus_type pnp_bus_type = {
.name = "pnp",
.match = pnp_bus_match,
.probe = pnp_device_probe,
.remove = pnp_device_remove,
.shutdown = pnp_device_shutdown,
- .suspend = pnp_bus_suspend,
- .resume = pnp_bus_resume,
+ .pm = &pnp_bus_dev_pm_ops,
.dev_attrs = pnp_interface_attrs,
};
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 55cd459..34049b0 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -131,7 +131,7 @@
/* acpi_unregister_gsi(pnp_irq(dev, 0)); */
ret = 0;
if (acpi_bus_power_manageable(handle))
- acpi_bus_set_power(handle, ACPI_STATE_D3);
+ acpi_bus_set_power(handle, ACPI_STATE_D3_COLD);
/* continue even if acpi_bus_set_power() fails */
if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DIS", NULL, NULL)))
ret = -ENODEV;
@@ -174,10 +174,10 @@
if (acpi_bus_power_manageable(handle)) {
int power_state = acpi_pm_device_sleep_state(&dev->dev, NULL,
- ACPI_STATE_D3);
+ ACPI_STATE_D3_COLD);
if (power_state < 0)
power_state = (state.event == PM_EVENT_ON) ?
- ACPI_STATE_D0 : ACPI_STATE_D3;
+ ACPI_STATE_D0 : ACPI_STATE_D3_COLD;
/*
* acpi_bus_set_power() often fails (keyboard port can't be
diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index 767fee2..2601953 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -23,6 +23,7 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
+#include <linux/delay.h>
#include <linux/rtc.h>
#include <linux/slab.h>
#include <linux/of_device.h>
@@ -119,24 +120,39 @@
}
#endif /* CONFIG_STMP3XXX_RTC_WATCHDOG */
-static void stmp3xxx_wait_time(struct stmp3xxx_rtc_data *rtc_data)
+static int stmp3xxx_wait_time(struct stmp3xxx_rtc_data *rtc_data)
{
+ int timeout = 5000; /* 3ms according to i.MX28 Ref Manual */
/*
- * The datasheet doesn't say which way round the
- * NEW_REGS/STALE_REGS bitfields go. In fact it's 0x1=P0,
- * 0x2=P1, .., 0x20=P5, 0x40=ALARM, 0x80=SECONDS
+ * The i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
+ * states:
+ * | The order in which registers are updated is
+ * | Persistent 0, 1, 2, 3, 4, 5, Alarm, Seconds.
+ * | (This list is in bitfield order, from LSB to MSB, as they would
+ * | appear in the STALE_REGS and NEW_REGS bitfields of the HW_RTC_STAT
+ * | register. For example, the Seconds register corresponds to
+ * | STALE_REGS or NEW_REGS containing 0x80.)
*/
- while (readl(rtc_data->io + STMP3XXX_RTC_STAT) &
- (0x80 << STMP3XXX_RTC_STAT_STALE_SHIFT))
- cpu_relax();
+ do {
+ if (!(readl(rtc_data->io + STMP3XXX_RTC_STAT) &
+ (0x80 << STMP3XXX_RTC_STAT_STALE_SHIFT)))
+ return 0;
+ udelay(1);
+ } while (--timeout > 0);
+ return (readl(rtc_data->io + STMP3XXX_RTC_STAT) &
+ (0x80 << STMP3XXX_RTC_STAT_STALE_SHIFT)) ? -ETIME : 0;
}
/* Time read/write */
static int stmp3xxx_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
{
+ int ret;
struct stmp3xxx_rtc_data *rtc_data = dev_get_drvdata(dev);
- stmp3xxx_wait_time(rtc_data);
+ ret = stmp3xxx_wait_time(rtc_data);
+ if (ret)
+ return ret;
+
rtc_time_to_tm(readl(rtc_data->io + STMP3XXX_RTC_SECONDS), rtc_tm);
return 0;
}
@@ -146,8 +162,7 @@
struct stmp3xxx_rtc_data *rtc_data = dev_get_drvdata(dev);
writel(t, rtc_data->io + STMP3XXX_RTC_SECONDS);
- stmp3xxx_wait_time(rtc_data);
- return 0;
+ return stmp3xxx_wait_time(rtc_data);
}
/* interrupt(s) handler */
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 1d4c8fe..c82fe65 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -102,10 +102,13 @@
if (atomic_read(&port->status) & ZFCP_STATUS_COMMON_ERP_INUSE)
zfcp_erp_action_dismiss(&port->erp_action);
- else
- shost_for_each_device(sdev, port->adapter->scsi_host)
+ else {
+ spin_lock(port->adapter->scsi_host->host_lock);
+ __shost_for_each_device(sdev, port->adapter->scsi_host)
if (sdev_to_zfcp(sdev)->port == port)
zfcp_erp_action_dismiss_lun(sdev);
+ spin_unlock(port->adapter->scsi_host->host_lock);
+ }
}
static void zfcp_erp_action_dismiss_adapter(struct zfcp_adapter *adapter)
@@ -592,9 +595,11 @@
{
struct scsi_device *sdev;
- shost_for_each_device(sdev, port->adapter->scsi_host)
+ spin_lock(port->adapter->scsi_host->host_lock);
+ __shost_for_each_device(sdev, port->adapter->scsi_host)
if (sdev_to_zfcp(sdev)->port == port)
_zfcp_erp_lun_reopen(sdev, clear, id, 0);
+ spin_unlock(port->adapter->scsi_host->host_lock);
}
static void zfcp_erp_strategy_followup_failed(struct zfcp_erp_action *act)
@@ -1434,8 +1439,10 @@
atomic_set_mask(common_mask, &port->status);
read_unlock_irqrestore(&adapter->port_list_lock, flags);
- shost_for_each_device(sdev, adapter->scsi_host)
+ spin_lock_irqsave(adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, adapter->scsi_host)
atomic_set_mask(common_mask, &sdev_to_zfcp(sdev)->status);
+ spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);
}
/**
@@ -1469,11 +1476,13 @@
}
read_unlock_irqrestore(&adapter->port_list_lock, flags);
- shost_for_each_device(sdev, adapter->scsi_host) {
+ spin_lock_irqsave(adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, adapter->scsi_host) {
atomic_clear_mask(common_mask, &sdev_to_zfcp(sdev)->status);
if (clear_counter)
atomic_set(&sdev_to_zfcp(sdev)->erp_counter, 0);
}
+ spin_unlock_irqrestore(adapter->scsi_host->host_lock, flags);
}
/**
@@ -1487,16 +1496,19 @@
{
struct scsi_device *sdev;
u32 common_mask = mask & ZFCP_COMMON_FLAGS;
+ unsigned long flags;
atomic_set_mask(mask, &port->status);
if (!common_mask)
return;
- shost_for_each_device(sdev, port->adapter->scsi_host)
+ spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, port->adapter->scsi_host)
if (sdev_to_zfcp(sdev)->port == port)
atomic_set_mask(common_mask,
&sdev_to_zfcp(sdev)->status);
+ spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags);
}
/**
@@ -1511,6 +1523,7 @@
struct scsi_device *sdev;
u32 common_mask = mask & ZFCP_COMMON_FLAGS;
u32 clear_counter = mask & ZFCP_STATUS_COMMON_ERP_FAILED;
+ unsigned long flags;
atomic_clear_mask(mask, &port->status);
@@ -1520,13 +1533,15 @@
if (clear_counter)
atomic_set(&port->erp_counter, 0);
- shost_for_each_device(sdev, port->adapter->scsi_host)
+ spin_lock_irqsave(port->adapter->scsi_host->host_lock, flags);
+ __shost_for_each_device(sdev, port->adapter->scsi_host)
if (sdev_to_zfcp(sdev)->port == port) {
atomic_clear_mask(common_mask,
&sdev_to_zfcp(sdev)->status);
if (clear_counter)
atomic_set(&sdev_to_zfcp(sdev)->erp_counter, 0);
}
+ spin_unlock_irqrestore(port->adapter->scsi_host->host_lock, flags);
}
/**
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 665e3cf..de0598e 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -224,11 +224,9 @@
static int zfcp_qdio_sbal_check(struct zfcp_qdio *qdio)
{
- spin_lock_irq(&qdio->req_q_lock);
if (atomic_read(&qdio->req_q_free) ||
!(atomic_read(&qdio->adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP))
return 1;
- spin_unlock_irq(&qdio->req_q_lock);
return 0;
}
@@ -246,9 +244,8 @@
{
long ret;
- spin_unlock_irq(&qdio->req_q_lock);
- ret = wait_event_interruptible_timeout(qdio->req_q_wq,
- zfcp_qdio_sbal_check(qdio), 5 * HZ);
+ ret = wait_event_interruptible_lock_irq_timeout(qdio->req_q_wq,
+ zfcp_qdio_sbal_check(qdio), qdio->req_q_lock, 5 * HZ);
if (!(atomic_read(&qdio->adapter->status) & ZFCP_STATUS_ADAPTER_QDIOUP))
return -EIO;
@@ -262,7 +259,6 @@
zfcp_erp_adapter_reopen(qdio->adapter, 0, "qdsbg_1");
}
- spin_lock_irq(&qdio->req_q_lock);
return -EIO;
}
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 3f01bbf..8906392 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -27,6 +27,16 @@
static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
zfcp_sysfs_##_feat##_##_name##_show, NULL);
+#define ZFCP_DEFINE_ATTR_CONST(_feat, _name, _format, _value) \
+static ssize_t zfcp_sysfs_##_feat##_##_name##_show(struct device *dev, \
+ struct device_attribute *at,\
+ char *buf) \
+{ \
+ return sprintf(buf, _format, _value); \
+} \
+static ZFCP_DEV_ATTR(_feat, _name, S_IRUGO, \
+ zfcp_sysfs_##_feat##_##_name##_show, NULL);
+
#define ZFCP_DEFINE_A_ATTR(_name, _format, _value) \
static ssize_t zfcp_sysfs_adapter_##_name##_show(struct device *dev, \
struct device_attribute *at,\
@@ -75,6 +85,8 @@
ZFCP_DEFINE_ATTR(zfcp_unit, unit, access_denied, "%d\n",
(zfcp_unit_sdev_status(unit) &
ZFCP_STATUS_COMMON_ACCESS_DENIED) != 0);
+ZFCP_DEFINE_ATTR_CONST(unit, access_shared, "%d\n", 0);
+ZFCP_DEFINE_ATTR_CONST(unit, access_readonly, "%d\n", 0);
static ssize_t zfcp_sysfs_port_failed_show(struct device *dev,
struct device_attribute *attr,
@@ -347,6 +359,8 @@
&dev_attr_unit_in_recovery.attr,
&dev_attr_unit_status.attr,
&dev_attr_unit_access_denied.attr,
+ &dev_attr_unit_access_shared.attr,
+ &dev_attr_unit_access_readonly.attr,
NULL
};
static struct attribute_group zfcp_unit_attr_group = {
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 48b2918..92ff027 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -1353,7 +1353,6 @@
tristate "Emulex LightPulse Fibre Channel Support"
depends on PCI && SCSI
select SCSI_FC_ATTRS
- select GENERIC_CSUM
select CRC_T10DIF
help
This lpfc driver supports the Emulex LightPulse
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index e25eba5..b3b5125 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -482,7 +482,7 @@
ret = comedi_device_postconfig(dev);
if (ret < 0) {
comedi_device_detach(dev);
- module_put(dev->driver->module);
+ module_put(driv->module);
}
/* On success, the driver module count has been incremented. */
return ret;
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 609dbc2..83b4ef4 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -1119,11 +1119,11 @@
/* Determine if it is a Rigol or not */
data->rigol_quirk = 0;
dev_dbg(&intf->dev, "Trying to find if device Vendor 0x%04X Product 0x%04X has the RIGOL quirk\n",
- data->usb_dev->descriptor.idVendor,
- data->usb_dev->descriptor.idProduct);
+ le16_to_cpu(data->usb_dev->descriptor.idVendor),
+ le16_to_cpu(data->usb_dev->descriptor.idProduct));
for(n = 0; usbtmc_id_quirk[n].idVendor > 0; n++) {
- if ((usbtmc_id_quirk[n].idVendor == data->usb_dev->descriptor.idVendor) &&
- (usbtmc_id_quirk[n].idProduct == data->usb_dev->descriptor.idProduct)) {
+ if ((usbtmc_id_quirk[n].idVendor == le16_to_cpu(data->usb_dev->descriptor.idVendor)) &&
+ (usbtmc_id_quirk[n].idProduct == le16_to_cpu(data->usb_dev->descriptor.idProduct))) {
dev_dbg(&intf->dev, "Setting this device as having the RIGOL quirk\n");
data->rigol_quirk = 1;
break;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index a635988..5b44cd4 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -78,6 +78,12 @@
{ USB_DEVICE(0x04d8, 0x000c), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
+ /* CarrolTouch 4000U */
+ { USB_DEVICE(0x04e7, 0x0009), .driver_info = USB_QUIRK_RESET_RESUME },
+
+ /* CarrolTouch 4500U */
+ { USB_DEVICE(0x04e7, 0x0030), .driver_info = USB_QUIRK_RESET_RESUME },
+
/* Samsung Android phone modem - ID conflict with SPH-I500 */
{ USB_DEVICE(0x04e8, 0x6601), .driver_info =
USB_QUIRK_CONFIG_INTF_STRINGS },
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index f80d033..8e3c878 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1391,21 +1391,20 @@
/* Behind the scheduling threshold? */
if (unlikely(start < next)) {
+ unsigned now2 = (now - base) & (mod - 1);
/* USB_ISO_ASAP: Round up to the first available slot */
if (urb->transfer_flags & URB_ISO_ASAP)
start += (next - start + period - 1) & -period;
/*
- * Not ASAP: Use the next slot in the stream. If
- * the entire URB falls before the threshold, fail.
+ * Not ASAP: Use the next slot in the stream,
+ * no matter what.
*/
- else if (start + span - period < next) {
- ehci_dbg(ehci, "iso urb late %p (%u+%u < %u)\n",
+ else if (start + span - period < now2) {
+ ehci_dbg(ehci, "iso underrun %p (%u+%u < %u)\n",
urb, start + base,
- span - period, next + base);
- status = -EXDEV;
- goto fail;
+ span - period, now2 + base);
}
}
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index 08613e2..0f1d193 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -304,6 +304,11 @@
pr_info("%s: " DRIVER_DESC "\n", hcd_name);
ohci_init_driver(&ohci_pci_hc_driver, &pci_overrides);
+
+ /* Entries for the PCI suspend/resume callbacks are special */
+ ohci_pci_hc_driver.pci_suspend = ohci_suspend;
+ ohci_pci_hc_driver.pci_resume = ohci_resume;
+
return pci_register_driver(&ohci_pci_driver);
}
module_init(ohci_pci_init);
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index eb3c8c1..eeb2720 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -830,7 +830,7 @@
/* let the user know what node this device is now attached to */
dev_info(&interface->dev, "ADU%d %s now attached to /dev/usb/adutux%d\n",
- udev->descriptor.idProduct, dev->serial_number,
+ le16_to_cpu(udev->descriptor.idProduct), dev->serial_number,
(dev->minor - ADU_MINOR_BASE));
exit:
dbg(2, " %s : leave, return value %p (dev)", __func__, dev);
diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h
index ca26628..e1859b8 100644
--- a/drivers/usb/phy/phy-fsl-usb.h
+++ b/drivers/usb/phy/phy-fsl-usb.h
@@ -15,7 +15,7 @@
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include "otg_fsm.h"
+#include "phy-fsm-usb.h"
#include <linux/usb/otg.h>
#include <linux/ioctl.h>
diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c
index c520b35..7f45966 100644
--- a/drivers/usb/phy/phy-fsm-usb.c
+++ b/drivers/usb/phy/phy-fsm-usb.c
@@ -29,7 +29,7 @@
#include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
-#include "phy-otg-fsm.h"
+#include "phy-fsm-usb.h"
/* Change USB protocol when there is a protocol change */
static int otg_set_protocol(struct otg_fsm *fsm, int protocol)
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 5a97972..58c17fd 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -2303,7 +2303,7 @@
if (d_details == NULL) {
dev_err(&serial->dev->dev, "%s - unknown product id %x\n",
__func__, le16_to_cpu(serial->dev->descriptor.idProduct));
- return 1;
+ return -ENODEV;
}
/* Setup private data for serial driver */
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 51da424..b013001 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -90,6 +90,7 @@
struct list_head urblist_entry;
struct kref ref_count;
struct urb *urb;
+ struct usb_ctrlrequest *setup;
};
enum mos7715_pp_modes {
@@ -271,6 +272,7 @@
struct mos7715_parport *mos_parport = urbtrack->mos_parport;
usb_free_urb(urbtrack->urb);
+ kfree(urbtrack->setup);
kfree(urbtrack);
kref_put(&mos_parport->ref_count, destroy_mos_parport);
}
@@ -355,7 +357,6 @@
struct urbtracker *urbtrack;
int ret_val;
unsigned long flags;
- struct usb_ctrlrequest setup;
struct usb_serial *serial = mos_parport->serial;
struct usb_device *usbdev = serial->dev;
@@ -373,14 +374,20 @@
kfree(urbtrack);
return -ENOMEM;
}
- setup.bRequestType = (__u8)0x40;
- setup.bRequest = (__u8)0x0e;
- setup.wValue = get_reg_value(reg, dummy);
- setup.wIndex = get_reg_index(reg);
- setup.wLength = 0;
+ urbtrack->setup = kmalloc(sizeof(*urbtrack->setup), GFP_KERNEL);
+ if (!urbtrack->setup) {
+ usb_free_urb(urbtrack->urb);
+ kfree(urbtrack);
+ return -ENOMEM;
+ }
+ urbtrack->setup->bRequestType = (__u8)0x40;
+ urbtrack->setup->bRequest = (__u8)0x0e;
+ urbtrack->setup->wValue = get_reg_value(reg, dummy);
+ urbtrack->setup->wIndex = get_reg_index(reg);
+ urbtrack->setup->wLength = 0;
usb_fill_control_urb(urbtrack->urb, usbdev,
usb_sndctrlpipe(usbdev, 0),
- (unsigned char *)&setup,
+ (unsigned char *)urbtrack->setup,
NULL, 0, async_complete, urbtrack);
kref_init(&urbtrack->ref_count);
INIT_LIST_HEAD(&urbtrack->urblist_entry);
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index d953d67..3bac469 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2193,7 +2193,7 @@
static int mos7840_probe(struct usb_serial *serial,
const struct usb_device_id *id)
{
- u16 product = serial->dev->descriptor.idProduct;
+ u16 product = le16_to_cpu(serial->dev->descriptor.idProduct);
u8 *buf;
int device_type;
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 375b5a4..5c9f9b1 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1536,14 +1536,15 @@
char buf[32];
/* try ID specific firmware first, then try generic firmware */
- sprintf(buf, "ti_usb-v%04x-p%04x.fw", dev->descriptor.idVendor,
- dev->descriptor.idProduct);
+ sprintf(buf, "ti_usb-v%04x-p%04x.fw",
+ le16_to_cpu(dev->descriptor.idVendor),
+ le16_to_cpu(dev->descriptor.idProduct));
status = request_firmware(&fw_p, buf, &dev->dev);
if (status != 0) {
buf[0] = '\0';
- if (dev->descriptor.idVendor == MTS_VENDOR_ID) {
- switch (dev->descriptor.idProduct) {
+ if (le16_to_cpu(dev->descriptor.idVendor) == MTS_VENDOR_ID) {
+ switch (le16_to_cpu(dev->descriptor.idProduct)) {
case MTS_CDMA_PRODUCT_ID:
strcpy(buf, "mts_cdma.fw");
break;
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 8257d30..8536578 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -291,18 +291,18 @@
tty_flip_buffer_push(&port->port);
} else
dev_dbg(dev, "%s: empty read urb received\n", __func__);
-
- /* Resubmit urb so we continue receiving */
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err) {
- if (err != -EPERM) {
- dev_err(dev, "%s: resubmit read urb failed. (%d)\n", __func__, err);
- /* busy also in error unless we are killed */
- usb_mark_last_busy(port->serial->dev);
- }
- } else {
+ }
+ /* Resubmit urb so we continue receiving */
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err) {
+ if (err != -EPERM) {
+ dev_err(dev, "%s: resubmit read urb failed. (%d)\n",
+ __func__, err);
+ /* busy also in error unless we are killed */
usb_mark_last_busy(port->serial->dev);
}
+ } else {
+ usb_mark_last_busy(port->serial->dev);
}
}
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 16968c8..d3493ca 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -1226,6 +1226,12 @@
}
spin_lock_irqsave(&xfer->lock, flags);
rpipe = xfer->ep->hcpriv;
+ if (rpipe == NULL) {
+ pr_debug("%s: xfer id 0x%08X has no RPIPE. %s",
+ __func__, wa_xfer_id(xfer),
+ "Probably already aborted.\n" );
+ goto out_unlock;
+ }
/* Check the delayed list -> if there, release and complete */
spin_lock_irqsave(&wa->xfer_list_lock, flags2);
if (!list_empty(&xfer->list_node) && xfer->seg == NULL)
@@ -1644,8 +1650,7 @@
break;
}
usb_status = xfer_result->bTransferStatus & 0x3f;
- if (usb_status == WA_XFER_STATUS_ABORTED
- || usb_status == WA_XFER_STATUS_NOT_FOUND)
+ if (usb_status == WA_XFER_STATUS_NOT_FOUND)
/* taken care of already */
break;
xfer_id = xfer_result->dwTransferID;
diff --git a/drivers/xen/acpi.c b/drivers/xen/acpi.c
index 119d42a..90307c0 100644
--- a/drivers/xen/acpi.c
+++ b/drivers/xen/acpi.c
@@ -35,28 +35,43 @@
#include <asm/xen/hypercall.h>
#include <asm/xen/hypervisor.h>
-int xen_acpi_notify_hypervisor_state(u8 sleep_state,
- u32 pm1a_cnt, u32 pm1b_cnt)
+static int xen_acpi_notify_hypervisor_state(u8 sleep_state,
+ u32 val_a, u32 val_b,
+ bool extended)
{
+ unsigned int bits = extended ? 8 : 16;
+
struct xen_platform_op op = {
.cmd = XENPF_enter_acpi_sleep,
.interface_version = XENPF_INTERFACE_VERSION,
- .u = {
- .enter_acpi_sleep = {
- .pm1a_cnt_val = (u16)pm1a_cnt,
- .pm1b_cnt_val = (u16)pm1b_cnt,
- .sleep_state = sleep_state,
- },
+ .u.enter_acpi_sleep = {
+ .val_a = (u16)val_a,
+ .val_b = (u16)val_b,
+ .sleep_state = sleep_state,
+ .flags = extended ? XENPF_ACPI_SLEEP_EXTENDED : 0,
},
};
- if ((pm1a_cnt & 0xffff0000) || (pm1b_cnt & 0xffff0000)) {
- WARN(1, "Using more than 16bits of PM1A/B 0x%x/0x%x!"
- "Email xen-devel@lists.xensource.com Thank you.\n", \
- pm1a_cnt, pm1b_cnt);
+ if (WARN((val_a & (~0 << bits)) || (val_b & (~0 << bits)),
+ "Using more than %u bits of sleep control values %#x/%#x!"
+ "Email xen-devel@lists.xen.org - Thank you.\n", \
+ bits, val_a, val_b))
return -1;
- }
HYPERVISOR_dom0_op(&op);
return 1;
}
+
+int xen_acpi_notify_hypervisor_sleep(u8 sleep_state,
+ u32 pm1a_cnt, u32 pm1b_cnt)
+{
+ return xen_acpi_notify_hypervisor_state(sleep_state, pm1a_cnt,
+ pm1b_cnt, false);
+}
+
+int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state,
+ u32 val_a, u32 val_b)
+{
+ return xen_acpi_notify_hypervisor_state(sleep_state, val_a,
+ val_b, true);
+}
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index a58ac43..5e8be46 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -348,7 +348,7 @@
for_each_possible_cpu(i)
memset(per_cpu(cpu_evtchn_mask, i),
- (i == 0) ? ~0 : 0, sizeof(*per_cpu(cpu_evtchn_mask, i)));
+ (i == 0) ? ~0 : 0, NR_EVENT_CHANNELS/8);
}
static inline void clear_evtchn(int port)
@@ -1493,8 +1493,10 @@
/* Rebind an evtchn so that it gets delivered to a specific cpu */
static int rebind_irq_to_cpu(unsigned irq, unsigned tcpu)
{
+ struct shared_info *s = HYPERVISOR_shared_info;
struct evtchn_bind_vcpu bind_vcpu;
int evtchn = evtchn_from_irq(irq);
+ int masked;
if (!VALID_EVTCHN(evtchn))
return -1;
@@ -1511,6 +1513,12 @@
bind_vcpu.vcpu = tcpu;
/*
+ * Mask the event while changing the VCPU binding to prevent
+ * it being delivered on an unexpected VCPU.
+ */
+ masked = sync_test_and_set_bit(evtchn, BM(s->evtchn_mask));
+
+ /*
* If this fails, it usually just indicates that we're dealing with a
* virq or IPI channel, which don't actually need to be rebound. Ignore
* it, but don't do the xenlinux-level rebind in that case.
@@ -1518,6 +1526,9 @@
if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_vcpu, &bind_vcpu) >= 0)
bind_evtchn_to_cpu(evtchn, tcpu);
+ if (!masked)
+ unmask_evtchn(evtchn);
+
return 0;
}
diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c
index 5e376bb..8defc6b 100644
--- a/fs/bfs/inode.c
+++ b/fs/bfs/inode.c
@@ -40,7 +40,7 @@
int block, off;
inode = iget_locked(sb, ino);
- if (IS_ERR(inode))
+ if (!inode)
return ERR_PTR(-ENOMEM);
if (!(inode->i_state & I_NEW))
return inode;
diff --git a/fs/bio.c b/fs/bio.c
index 94bbc04..c5eae72 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1045,12 +1045,22 @@
int bio_uncopy_user(struct bio *bio)
{
struct bio_map_data *bmd = bio->bi_private;
- int ret = 0;
+ struct bio_vec *bvec;
+ int ret = 0, i;
- if (!bio_flagged(bio, BIO_NULL_MAPPED))
- ret = __bio_copy_iov(bio, bmd->iovecs, bmd->sgvecs,
- bmd->nr_sgvecs, bio_data_dir(bio) == READ,
- 0, bmd->is_our_pages);
+ if (!bio_flagged(bio, BIO_NULL_MAPPED)) {
+ /*
+ * if we're in a workqueue, the request is orphaned, so
+ * don't copy into a random user address space, just free.
+ */
+ if (current->mm)
+ ret = __bio_copy_iov(bio, bmd->iovecs, bmd->sgvecs,
+ bmd->nr_sgvecs, bio_data_dir(bio) == READ,
+ 0, bmd->is_our_pages);
+ else if (bmd->is_our_pages)
+ bio_for_each_segment_all(bvec, bio, i)
+ __free_page(bvec->bv_page);
+ }
bio_free_map_data(bmd);
bio_put(bio);
return ret;
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index 45e57cc..fc6f4f3 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -43,17 +43,18 @@
server->secmech.md5 = crypto_alloc_shash("md5", 0, 0);
if (IS_ERR(server->secmech.md5)) {
cifs_dbg(VFS, "could not allocate crypto md5\n");
- return PTR_ERR(server->secmech.md5);
+ rc = PTR_ERR(server->secmech.md5);
+ server->secmech.md5 = NULL;
+ return rc;
}
size = sizeof(struct shash_desc) +
crypto_shash_descsize(server->secmech.md5);
server->secmech.sdescmd5 = kmalloc(size, GFP_KERNEL);
if (!server->secmech.sdescmd5) {
- rc = -ENOMEM;
crypto_free_shash(server->secmech.md5);
server->secmech.md5 = NULL;
- return rc;
+ return -ENOMEM;
}
server->secmech.sdescmd5->shash.tfm = server->secmech.md5;
server->secmech.sdescmd5->shash.flags = 0x0;
@@ -421,7 +422,7 @@
if (blobptr + attrsize > blobend)
break;
if (type == NTLMSSP_AV_NB_DOMAIN_NAME) {
- if (!attrsize)
+ if (!attrsize || attrsize >= CIFS_MAX_DOMAINNAME_LEN)
break;
if (!ses->domainName) {
ses->domainName =
@@ -591,6 +592,7 @@
static int crypto_hmacmd5_alloc(struct TCP_Server_Info *server)
{
+ int rc;
unsigned int size;
/* check if already allocated */
@@ -600,7 +602,9 @@
server->secmech.hmacmd5 = crypto_alloc_shash("hmac(md5)", 0, 0);
if (IS_ERR(server->secmech.hmacmd5)) {
cifs_dbg(VFS, "could not allocate crypto hmacmd5\n");
- return PTR_ERR(server->secmech.hmacmd5);
+ rc = PTR_ERR(server->secmech.hmacmd5);
+ server->secmech.hmacmd5 = NULL;
+ return rc;
}
size = sizeof(struct shash_desc) +
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 4bdd547..85ea98d 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -147,18 +147,17 @@
goto out_no_root;
}
+ if (cifs_sb_master_tcon(cifs_sb)->nocase)
+ sb->s_d_op = &cifs_ci_dentry_ops;
+ else
+ sb->s_d_op = &cifs_dentry_ops;
+
sb->s_root = d_make_root(inode);
if (!sb->s_root) {
rc = -ENOMEM;
goto out_no_root;
}
- /* do that *after* d_make_root() - we want NULL ->d_op for root here */
- if (cifs_sb_master_tcon(cifs_sb)->nocase)
- sb->s_d_op = &cifs_ci_dentry_ops;
- else
- sb->s_d_op = &cifs_dentry_ops;
-
#ifdef CONFIG_CIFS_NFSD_EXPORT
if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
cifs_dbg(FYI, "export ops supported\n");
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 1fdc370..52ca861 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -44,6 +44,7 @@
#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + MAX_SHARE_SIZE + 1)
#define MAX_SERVER_SIZE 15
#define MAX_SHARE_SIZE 80
+#define CIFS_MAX_DOMAINNAME_LEN 256 /* max domain name length */
#define MAX_USERNAME_SIZE 256 /* reasonable maximum for current servers */
#define MAX_PASSWORD_SIZE 512 /* max for windows seems to be 256 wide chars */
@@ -369,6 +370,9 @@
void (*generate_signingkey)(struct TCP_Server_Info *server);
int (*calc_signature)(struct smb_rqst *rqst,
struct TCP_Server_Info *server);
+ int (*query_mf_symlink)(const unsigned char *path, char *pbuf,
+ unsigned int *pbytes_read, struct cifs_sb_info *cifs_sb,
+ unsigned int xid);
};
struct smb_version_values {
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index f7e584d..b29a012 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -497,5 +497,7 @@
struct cifs_writedata *cifs_writedata_alloc(unsigned int nr_pages,
work_func_t complete);
void cifs_writedata_release(struct kref *refcount);
-
+int open_query_close_cifs_symlink(const unsigned char *path, char *pbuf,
+ unsigned int *pbytes_read, struct cifs_sb_info *cifs_sb,
+ unsigned int xid);
#endif /* _CIFSPROTO_H */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index fa68813..d67c550 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1675,7 +1675,8 @@
if (string == NULL)
goto out_nomem;
- if (strnlen(string, 256) == 256) {
+ if (strnlen(string, CIFS_MAX_DOMAINNAME_LEN)
+ == CIFS_MAX_DOMAINNAME_LEN) {
printk(KERN_WARNING "CIFS: domain name too"
" long\n");
goto cifs_parse_mount_err;
@@ -2276,8 +2277,8 @@
#ifdef CONFIG_KEYS
-/* strlen("cifs:a:") + INET6_ADDRSTRLEN + 1 */
-#define CIFSCREDS_DESC_SIZE (7 + INET6_ADDRSTRLEN + 1)
+/* strlen("cifs:a:") + CIFS_MAX_DOMAINNAME_LEN + 1 */
+#define CIFSCREDS_DESC_SIZE (7 + CIFS_MAX_DOMAINNAME_LEN + 1)
/* Populate username and pw fields from keyring if possible */
static int
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 1e57f36..7e36ae3 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -647,6 +647,7 @@
oflags, &oplock, &cfile->fid.netfid, xid);
if (rc == 0) {
cifs_dbg(FYI, "posix reopen succeeded\n");
+ oparms.reconnect = true;
goto reopen_success;
}
/*
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index b83c3f5..562044f 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -305,67 +305,89 @@
}
int
-CIFSCheckMFSymlink(struct cifs_fattr *fattr,
- const unsigned char *path,
- struct cifs_sb_info *cifs_sb, unsigned int xid)
+open_query_close_cifs_symlink(const unsigned char *path, char *pbuf,
+ unsigned int *pbytes_read, struct cifs_sb_info *cifs_sb,
+ unsigned int xid)
{
int rc;
int oplock = 0;
__u16 netfid = 0;
struct tcon_link *tlink;
- struct cifs_tcon *pTcon;
+ struct cifs_tcon *ptcon;
struct cifs_io_parms io_parms;
- u8 *buf;
- char *pbuf;
- unsigned int bytes_read = 0;
int buf_type = CIFS_NO_BUFFER;
- unsigned int link_len = 0;
FILE_ALL_INFO file_info;
- if (!CIFSCouldBeMFSymlink(fattr))
- /* it's not a symlink */
- return 0;
-
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink))
return PTR_ERR(tlink);
- pTcon = tlink_tcon(tlink);
+ ptcon = tlink_tcon(tlink);
- rc = CIFSSMBOpen(xid, pTcon, path, FILE_OPEN, GENERIC_READ,
+ rc = CIFSSMBOpen(xid, ptcon, path, FILE_OPEN, GENERIC_READ,
CREATE_NOT_DIR, &netfid, &oplock, &file_info,
cifs_sb->local_nls,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
- if (rc != 0)
- goto out;
+ if (rc != 0) {
+ cifs_put_tlink(tlink);
+ return rc;
+ }
if (file_info.EndOfFile != cpu_to_le64(CIFS_MF_SYMLINK_FILE_SIZE)) {
- CIFSSMBClose(xid, pTcon, netfid);
+ CIFSSMBClose(xid, ptcon, netfid);
+ cifs_put_tlink(tlink);
/* it's not a symlink */
- goto out;
+ return rc;
}
+ io_parms.netfid = netfid;
+ io_parms.pid = current->tgid;
+ io_parms.tcon = ptcon;
+ io_parms.offset = 0;
+ io_parms.length = CIFS_MF_SYMLINK_FILE_SIZE;
+
+ rc = CIFSSMBRead(xid, &io_parms, pbytes_read, &pbuf, &buf_type);
+ CIFSSMBClose(xid, ptcon, netfid);
+ cifs_put_tlink(tlink);
+ return rc;
+}
+
+
+int
+CIFSCheckMFSymlink(struct cifs_fattr *fattr,
+ const unsigned char *path,
+ struct cifs_sb_info *cifs_sb, unsigned int xid)
+{
+ int rc = 0;
+ u8 *buf = NULL;
+ unsigned int link_len = 0;
+ unsigned int bytes_read = 0;
+ struct cifs_tcon *ptcon;
+
+ if (!CIFSCouldBeMFSymlink(fattr))
+ /* it's not a symlink */
+ return 0;
+
buf = kmalloc(CIFS_MF_SYMLINK_FILE_SIZE, GFP_KERNEL);
if (!buf) {
rc = -ENOMEM;
goto out;
}
- pbuf = buf;
- io_parms.netfid = netfid;
- io_parms.pid = current->tgid;
- io_parms.tcon = pTcon;
- io_parms.offset = 0;
- io_parms.length = CIFS_MF_SYMLINK_FILE_SIZE;
- rc = CIFSSMBRead(xid, &io_parms, &bytes_read, &pbuf, &buf_type);
- CIFSSMBClose(xid, pTcon, netfid);
- if (rc != 0) {
- kfree(buf);
+ ptcon = tlink_tcon(cifs_sb_tlink(cifs_sb));
+ if ((ptcon->ses) && (ptcon->ses->server->ops->query_mf_symlink))
+ rc = ptcon->ses->server->ops->query_mf_symlink(path, buf,
+ &bytes_read, cifs_sb, xid);
+ else
goto out;
- }
+
+ if (rc != 0)
+ goto out;
+
+ if (bytes_read == 0) /* not a symlink */
+ goto out;
rc = CIFSParseMFSymlink(buf, bytes_read, &link_len, NULL);
- kfree(buf);
if (rc == -EINVAL) {
/* it's not a symlink */
rc = 0;
@@ -381,7 +403,7 @@
fattr->cf_mode |= S_IFLNK | S_IRWXU | S_IRWXG | S_IRWXO;
fattr->cf_dtype = DT_LNK;
out:
- cifs_put_tlink(tlink);
+ kfree(buf);
return rc;
}
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index ab87784..69d2c82 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -111,6 +111,14 @@
return;
}
+ /*
+ * If we know that the inode will need to be revalidated immediately,
+ * then don't create a new dentry for it. We'll end up doing an on
+ * the wire call either way and this spares us an invalidation.
+ */
+ if (fattr->cf_flags & CIFS_FATTR_NEED_REVAL)
+ return;
+
dentry = d_alloc(parent, name);
if (!dentry)
return;
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 79358e3..08dd37b 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -197,7 +197,7 @@
bytes_ret = 0;
} else
bytes_ret = cifs_strtoUTF16((__le16 *) bcc_ptr, ses->domainName,
- 256, nls_cp);
+ CIFS_MAX_DOMAINNAME_LEN, nls_cp);
bcc_ptr += 2 * bytes_ret;
bcc_ptr += 2; /* account for null terminator */
@@ -255,8 +255,8 @@
/* copy domain */
if (ses->domainName != NULL) {
- strncpy(bcc_ptr, ses->domainName, 256);
- bcc_ptr += strnlen(ses->domainName, 256);
+ strncpy(bcc_ptr, ses->domainName, CIFS_MAX_DOMAINNAME_LEN);
+ bcc_ptr += strnlen(ses->domainName, CIFS_MAX_DOMAINNAME_LEN);
} /* else we will send a null domain name
so the server will default to its own domain */
*bcc_ptr = 0;
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 6457690..6094397 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -944,6 +944,7 @@
.mand_lock = cifs_mand_lock,
.mand_unlock_range = cifs_unlock_range,
.push_mand_locks = cifs_push_mandatory_locks,
+ .query_mf_symlink = open_query_close_cifs_symlink,
};
struct smb_version_values smb1_values = {
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index 301b191..4f2300d 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -42,6 +42,7 @@
static int
smb2_crypto_shash_allocate(struct TCP_Server_Info *server)
{
+ int rc;
unsigned int size;
if (server->secmech.sdeschmacsha256 != NULL)
@@ -50,7 +51,9 @@
server->secmech.hmacsha256 = crypto_alloc_shash("hmac(sha256)", 0, 0);
if (IS_ERR(server->secmech.hmacsha256)) {
cifs_dbg(VFS, "could not allocate crypto hmacsha256\n");
- return PTR_ERR(server->secmech.hmacsha256);
+ rc = PTR_ERR(server->secmech.hmacsha256);
+ server->secmech.hmacsha256 = NULL;
+ return rc;
}
size = sizeof(struct shash_desc) +
@@ -87,7 +90,9 @@
server->secmech.sdeschmacsha256 = NULL;
crypto_free_shash(server->secmech.hmacsha256);
server->secmech.hmacsha256 = NULL;
- return PTR_ERR(server->secmech.cmacaes);
+ rc = PTR_ERR(server->secmech.cmacaes);
+ server->secmech.cmacaes = NULL;
+ return rc;
}
size = sizeof(struct shash_desc) +
diff --git a/fs/dcache.c b/fs/dcache.c
index 87bdb53..83cfb83 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2724,6 +2724,17 @@
return memcpy(buffer, temp, sz);
}
+char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
+{
+ char *end = buffer + buflen;
+ /* these dentries are never renamed, so d_lock is not needed */
+ if (prepend(&end, &buflen, " (deleted)", 11) ||
+ prepend_name(&end, &buflen, &dentry->d_name) ||
+ prepend(&end, &buflen, "/", 1))
+ end = ERR_PTR(-ENAMETOOLONG);
+ return end;
+}
+
/*
* Write full pathname from the root of the filesystem into the buffer.
*/
diff --git a/fs/efs/inode.c b/fs/efs/inode.c
index f3913eb..d15ccf2 100644
--- a/fs/efs/inode.c
+++ b/fs/efs/inode.c
@@ -57,7 +57,7 @@
struct inode *inode;
inode = iget_locked(super, ino);
- if (IS_ERR(inode))
+ if (!inode)
return ERR_PTR(-ENOMEM);
if (!(inode->i_state & I_NEW))
return inode;
diff --git a/fs/exec.c b/fs/exec.c
index 9c73def..fd774c7 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -608,7 +608,7 @@
return -ENOMEM;
lru_add_drain();
- tlb_gather_mmu(&tlb, mm, 0);
+ tlb_gather_mmu(&tlb, mm, old_start, old_end);
if (new_end > old_start) {
/*
* when the old and new regions overlap clear from new_end.
@@ -625,7 +625,7 @@
free_pgd_range(&tlb, old_start, old_end, new_end,
vma->vm_next ? vma->vm_next->vm_start : USER_PGTABLES_CEILING);
}
- tlb_finish_mmu(&tlb, new_end, old_end);
+ tlb_finish_mmu(&tlb, old_start, old_end);
/*
* Shrink the vma to just the new range. Always succeeds.
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index b577e45..0ab26fb 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2086,6 +2086,7 @@
extern void ext4_dirty_inode(struct inode *, int);
extern int ext4_change_inode_journal_flag(struct inode *, int);
extern int ext4_get_inode_loc(struct inode *, struct ext4_iloc *);
+extern int ext4_inode_attach_jinode(struct inode *inode);
extern int ext4_can_truncate(struct inode *inode);
extern void ext4_truncate(struct inode *);
extern int ext4_punch_hole(struct inode *inode, loff_t offset, loff_t length);
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index 72a3600..17ac112 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -255,10 +255,10 @@
set_buffer_prio(bh);
if (ext4_handle_valid(handle)) {
err = jbd2_journal_dirty_metadata(handle, bh);
- if (err) {
- /* Errors can only happen if there is a bug */
- handle->h_err = err;
- __ext4_journal_stop(where, line, handle);
+ /* Errors can only happen if there is a bug */
+ if (WARN_ON_ONCE(err)) {
+ ext4_journal_abort_handle(where, line, __func__, bh,
+ handle, err);
}
} else {
if (inode)
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 6f4cc56..319c9d2 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -219,7 +219,6 @@
{
struct super_block *sb = inode->i_sb;
struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
- struct ext4_inode_info *ei = EXT4_I(inode);
struct vfsmount *mnt = filp->f_path.mnt;
struct path path;
char buf[64], *cp;
@@ -259,22 +258,10 @@
* Set up the jbd2_inode if we are opening the inode for
* writing and the journal is present
*/
- if (sbi->s_journal && !ei->jinode && (filp->f_mode & FMODE_WRITE)) {
- struct jbd2_inode *jinode = jbd2_alloc_inode(GFP_KERNEL);
-
- spin_lock(&inode->i_lock);
- if (!ei->jinode) {
- if (!jinode) {
- spin_unlock(&inode->i_lock);
- return -ENOMEM;
- }
- ei->jinode = jinode;
- jbd2_journal_init_jbd_inode(ei->jinode, inode);
- jinode = NULL;
- }
- spin_unlock(&inode->i_lock);
- if (unlikely(jinode != NULL))
- jbd2_free_inode(jinode);
+ if (filp->f_mode & FMODE_WRITE) {
+ int ret = ext4_inode_attach_jinode(inode);
+ if (ret < 0)
+ return ret;
}
return dquot_file_open(inode, filp);
}
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index dd32a2e..c2ca04e 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -3533,6 +3533,18 @@
offset;
}
+ if (offset & (sb->s_blocksize - 1) ||
+ (offset + length) & (sb->s_blocksize - 1)) {
+ /*
+ * Attach jinode to inode for jbd2 if we do any zeroing of
+ * partial block
+ */
+ ret = ext4_inode_attach_jinode(inode);
+ if (ret < 0)
+ goto out_mutex;
+
+ }
+
first_block_offset = round_up(offset, sb->s_blocksize);
last_block_offset = round_down((offset + length), sb->s_blocksize) - 1;
@@ -3601,6 +3613,31 @@
return ret;
}
+int ext4_inode_attach_jinode(struct inode *inode)
+{
+ struct ext4_inode_info *ei = EXT4_I(inode);
+ struct jbd2_inode *jinode;
+
+ if (ei->jinode || !EXT4_SB(inode->i_sb)->s_journal)
+ return 0;
+
+ jinode = jbd2_alloc_inode(GFP_KERNEL);
+ spin_lock(&inode->i_lock);
+ if (!ei->jinode) {
+ if (!jinode) {
+ spin_unlock(&inode->i_lock);
+ return -ENOMEM;
+ }
+ ei->jinode = jinode;
+ jbd2_journal_init_jbd_inode(ei->jinode, inode);
+ jinode = NULL;
+ }
+ spin_unlock(&inode->i_lock);
+ if (unlikely(jinode != NULL))
+ jbd2_free_inode(jinode);
+ return 0;
+}
+
/*
* ext4_truncate()
*
@@ -3661,6 +3698,12 @@
return;
}
+ /* If we zero-out tail of the page, we have to create jinode for jbd2 */
+ if (inode->i_size & (inode->i_sb->s_blocksize - 1)) {
+ if (ext4_inode_attach_jinode(inode) < 0)
+ return;
+ }
+
if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))
credits = ext4_writepage_trans_blocks(inode);
else
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index 9491ac0..c0427e2 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -77,8 +77,10 @@
memswap(ei1->i_data, ei2->i_data, sizeof(ei1->i_data));
memswap(&ei1->i_flags, &ei2->i_flags, sizeof(ei1->i_flags));
memswap(&ei1->i_disksize, &ei2->i_disksize, sizeof(ei1->i_disksize));
- memswap(&ei1->i_es_tree, &ei2->i_es_tree, sizeof(ei1->i_es_tree));
- memswap(&ei1->i_es_lru_nr, &ei2->i_es_lru_nr, sizeof(ei1->i_es_lru_nr));
+ ext4_es_remove_extent(inode1, 0, EXT_MAX_BLOCKS);
+ ext4_es_remove_extent(inode2, 0, EXT_MAX_BLOCKS);
+ ext4_es_lru_del(inode1);
+ ext4_es_lru_del(inode2);
isize = i_size_read(inode1);
i_size_write(inode1, i_size_read(inode2));
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 36b141e..b59373b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1359,7 +1359,7 @@
{Opt_delalloc, EXT4_MOUNT_DELALLOC,
MOPT_EXT4_ONLY | MOPT_SET | MOPT_EXPLICIT},
{Opt_nodelalloc, EXT4_MOUNT_DELALLOC,
- MOPT_EXT4_ONLY | MOPT_CLEAR | MOPT_EXPLICIT},
+ MOPT_EXT4_ONLY | MOPT_CLEAR},
{Opt_journal_checksum, EXT4_MOUNT_JOURNAL_CHECKSUM,
MOPT_EXT4_ONLY | MOPT_SET},
{Opt_journal_async_commit, (EXT4_MOUNT_JOURNAL_ASYNC_COMMIT |
@@ -3483,7 +3483,7 @@
}
if (test_opt(sb, DIOREAD_NOLOCK)) {
ext4_msg(sb, KERN_ERR, "can't mount with "
- "both data=journal and delalloc");
+ "both data=journal and dioread_nolock");
goto failed_mount;
}
if (test_opt(sb, DELALLOC))
@@ -4727,6 +4727,21 @@
goto restore_opts;
}
+ if (test_opt(sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA) {
+ if (test_opt2(sb, EXPLICIT_DELALLOC)) {
+ ext4_msg(sb, KERN_ERR, "can't mount with "
+ "both data=journal and delalloc");
+ err = -EINVAL;
+ goto restore_opts;
+ }
+ if (test_opt(sb, DIOREAD_NOLOCK)) {
+ ext4_msg(sb, KERN_ERR, "can't mount with "
+ "both data=journal and dioread_nolock");
+ err = -EINVAL;
+ goto restore_opts;
+ }
+ }
+
if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED)
ext4_abort(sb, "Abort forced by user");
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 9435384..544a809 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1838,14 +1838,14 @@
glock_workqueue = alloc_workqueue("glock_workqueue", WQ_MEM_RECLAIM |
WQ_HIGHPRI | WQ_FREEZABLE, 0);
- if (IS_ERR(glock_workqueue))
- return PTR_ERR(glock_workqueue);
+ if (!glock_workqueue)
+ return -ENOMEM;
gfs2_delete_workqueue = alloc_workqueue("delete_workqueue",
WQ_MEM_RECLAIM | WQ_FREEZABLE,
0);
- if (IS_ERR(gfs2_delete_workqueue)) {
+ if (!gfs2_delete_workqueue) {
destroy_workqueue(glock_workqueue);
- return PTR_ERR(gfs2_delete_workqueue);
+ return -ENOMEM;
}
register_shrinker(&glock_shrinker);
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index 5f2e522..e2e0a90 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -47,7 +47,8 @@
* None of the buffers should be dirty, locked, or pinned.
*/
-static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync)
+static void __gfs2_ail_flush(struct gfs2_glock *gl, bool fsync,
+ unsigned int nr_revokes)
{
struct gfs2_sbd *sdp = gl->gl_sbd;
struct list_head *head = &gl->gl_ail_list;
@@ -57,7 +58,9 @@
gfs2_log_lock(sdp);
spin_lock(&sdp->sd_ail_lock);
- list_for_each_entry_safe(bd, tmp, head, bd_ail_gl_list) {
+ list_for_each_entry_safe_reverse(bd, tmp, head, bd_ail_gl_list) {
+ if (nr_revokes == 0)
+ break;
bh = bd->bd_bh;
if (bh->b_state & b_state) {
if (fsync)
@@ -65,6 +68,7 @@
gfs2_ail_error(gl, bh);
}
gfs2_trans_add_revoke(sdp, bd);
+ nr_revokes--;
}
GLOCK_BUG_ON(gl, !fsync && atomic_read(&gl->gl_ail_count));
spin_unlock(&sdp->sd_ail_lock);
@@ -91,7 +95,7 @@
WARN_ON_ONCE(current->journal_info);
current->journal_info = &tr;
- __gfs2_ail_flush(gl, 0);
+ __gfs2_ail_flush(gl, 0, tr.tr_revokes);
gfs2_trans_end(sdp);
gfs2_log_flush(sdp, NULL);
@@ -101,15 +105,19 @@
{
struct gfs2_sbd *sdp = gl->gl_sbd;
unsigned int revokes = atomic_read(&gl->gl_ail_count);
+ unsigned int max_revokes = (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_log_descriptor)) / sizeof(u64);
int ret;
if (!revokes)
return;
- ret = gfs2_trans_begin(sdp, 0, revokes);
+ while (revokes > max_revokes)
+ max_revokes += (sdp->sd_sb.sb_bsize - sizeof(struct gfs2_meta_header)) / sizeof(u64);
+
+ ret = gfs2_trans_begin(sdp, 0, max_revokes);
if (ret)
return;
- __gfs2_ail_flush(gl, fsync);
+ __gfs2_ail_flush(gl, fsync, max_revokes);
gfs2_trans_end(sdp);
gfs2_log_flush(sdp, NULL);
}
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index bbb2715..64915ee 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -594,7 +594,7 @@
}
gfs2_glock_dq_uninit(ghs);
if (IS_ERR(d))
- return PTR_RET(d);
+ return PTR_ERR(d);
return error;
} else if (error != -ENOENT) {
goto fail_gunlock;
@@ -1750,6 +1750,10 @@
struct gfs2_holder gh;
int ret;
+ /* For selinux during lookup */
+ if (gfs2_glock_is_locked_by_me(ip->i_gl))
+ return generic_getxattr(dentry, name, data, size);
+
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh);
ret = gfs2_glock_nq(&gh);
if (ret == 0) {
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index e04d0e0..7b0f504 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -155,7 +155,7 @@
goto fail_wq;
gfs2_control_wq = alloc_workqueue("gfs2_control",
- WQ_NON_REENTRANT | WQ_UNBOUND | WQ_FREEZABLE, 0);
+ WQ_UNBOUND | WQ_FREEZABLE, 0);
if (!gfs2_control_wq)
goto fail_recovery;
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index a3f868a..d19b30a 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -463,6 +463,14 @@
return inode;
}
+/*
+ * Hugetlbfs is not reclaimable; therefore its i_mmap_mutex will never
+ * be taken from reclaim -- unlike regular filesystems. This needs an
+ * annotation because huge_pmd_share() does an allocation under
+ * i_mmap_mutex.
+ */
+struct lock_class_key hugetlbfs_i_mmap_mutex_key;
+
static struct inode *hugetlbfs_get_inode(struct super_block *sb,
struct inode *dir,
umode_t mode, dev_t dev)
@@ -474,6 +482,8 @@
struct hugetlbfs_inode_info *info;
inode->i_ino = get_next_ino();
inode_init_owner(inode, dir, mode);
+ lockdep_set_class(&inode->i_mapping->i_mmap_mutex,
+ &hugetlbfs_i_mmap_mutex_key);
inode->i_mapping->a_ops = &hugetlbfs_aops;
inode->i_mapping->backing_dev_info =&hugetlbfs_backing_dev_info;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
@@ -916,14 +926,8 @@
return h - hstates;
}
-static char *hugetlb_dname(struct dentry *dentry, char *buffer, int buflen)
-{
- return dynamic_dname(dentry, buffer, buflen, "/%s (deleted)",
- dentry->d_name.name);
-}
-
static struct dentry_operations anon_ops = {
- .d_dname = hugetlb_dname
+ .d_dname = simple_dname
};
/*
diff --git a/fs/namespace.c b/fs/namespace.c
index 7b1ca9b..a45ba4f 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1429,7 +1429,7 @@
CL_COPY_ALL | CL_PRIVATE);
namespace_unlock();
if (IS_ERR(tree))
- return NULL;
+ return ERR_CAST(tree);
return &tree->mnt;
}
diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c
index dc9a913..2d8be51 100644
--- a/fs/nilfs2/segbuf.c
+++ b/fs/nilfs2/segbuf.c
@@ -345,8 +345,7 @@
if (err == -EOPNOTSUPP) {
set_bit(BIO_EOPNOTSUPP, &bio->bi_flags);
- bio_put(bio);
- /* to be detected by submit_seg_bio() */
+ /* to be detected by nilfs_segbuf_submit_bio() */
}
if (!uptodate)
@@ -377,12 +376,12 @@
bio->bi_private = segbuf;
bio_get(bio);
submit_bio(mode, bio);
+ segbuf->sb_nbio++;
if (bio_flagged(bio, BIO_EOPNOTSUPP)) {
bio_put(bio);
err = -EOPNOTSUPP;
goto failed;
}
- segbuf->sb_nbio++;
bio_put(bio);
wi->bio = NULL;
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index 79736a2..2abf97b 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1757,7 +1757,7 @@
goto out;
} else if (ret == 1) {
clusters_need = wc->w_clen;
- ret = ocfs2_refcount_cow(inode, filp, di_bh,
+ ret = ocfs2_refcount_cow(inode, di_bh,
wc->w_cpos, wc->w_clen, UINT_MAX);
if (ret) {
mlog_errno(ret);
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index eb760d8..30544ce 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -2153,11 +2153,9 @@
{
int ret;
struct ocfs2_empty_dir_priv priv = {
- .ctx.actor = ocfs2_empty_dir_filldir
+ .ctx.actor = ocfs2_empty_dir_filldir,
};
- memset(&priv, 0, sizeof(priv));
-
if (ocfs2_dir_indexed(inode)) {
ret = ocfs2_empty_dir_dx(inode, &priv);
if (ret)
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 41000f2..3261d71 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -370,7 +370,7 @@
if (!(ext_flags & OCFS2_EXT_REFCOUNTED))
goto out;
- return ocfs2_refcount_cow(inode, NULL, fe_bh, cpos, 1, cpos+1);
+ return ocfs2_refcount_cow(inode, fe_bh, cpos, 1, cpos+1);
out:
return status;
@@ -899,7 +899,7 @@
zero_clusters = last_cpos - zero_cpos;
if (needs_cow) {
- rc = ocfs2_refcount_cow(inode, NULL, di_bh, zero_cpos,
+ rc = ocfs2_refcount_cow(inode, di_bh, zero_cpos,
zero_clusters, UINT_MAX);
if (rc) {
mlog_errno(rc);
@@ -2078,7 +2078,7 @@
*meta_level = 1;
- ret = ocfs2_refcount_cow(inode, file, di_bh, cpos, clusters, UINT_MAX);
+ ret = ocfs2_refcount_cow(inode, di_bh, cpos, clusters, UINT_MAX);
if (ret)
mlog_errno(ret);
out:
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 96f9ac2..0a99273 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -537,7 +537,7 @@
extent_blocks = 1 + 1 + le16_to_cpu(root_el->l_tree_depth);
return bitmap_blocks + sysfile_bitmap_blocks + extent_blocks +
- ocfs2_quota_trans_credits(sb) + bits_wanted;
+ ocfs2_quota_trans_credits(sb);
}
static inline int ocfs2_calc_symlink_credits(struct super_block *sb)
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index f1fc172..452068b 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -69,7 +69,7 @@
u64 ino = ocfs2_metadata_cache_owner(context->et.et_ci);
u64 old_blkno = ocfs2_clusters_to_blocks(inode->i_sb, p_cpos);
- ret = ocfs2_duplicate_clusters_by_page(handle, context->file, cpos,
+ ret = ocfs2_duplicate_clusters_by_page(handle, inode, cpos,
p_cpos, new_p_cpos, len);
if (ret) {
mlog_errno(ret);
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 9f6b96a..a70d604 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -49,7 +49,6 @@
struct ocfs2_cow_context {
struct inode *inode;
- struct file *file;
u32 cow_start;
u32 cow_len;
struct ocfs2_extent_tree data_et;
@@ -66,7 +65,7 @@
u32 *num_clusters,
unsigned int *extent_flags);
int (*cow_duplicate_clusters)(handle_t *handle,
- struct file *file,
+ struct inode *inode,
u32 cpos, u32 old_cluster,
u32 new_cluster, u32 new_len);
};
@@ -2922,14 +2921,12 @@
}
int ocfs2_duplicate_clusters_by_page(handle_t *handle,
- struct file *file,
+ struct inode *inode,
u32 cpos, u32 old_cluster,
u32 new_cluster, u32 new_len)
{
int ret = 0, partial;
- struct inode *inode = file_inode(file);
- struct ocfs2_caching_info *ci = INODE_CACHE(inode);
- struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
+ struct super_block *sb = inode->i_sb;
u64 new_block = ocfs2_clusters_to_blocks(sb, new_cluster);
struct page *page;
pgoff_t page_index;
@@ -2978,13 +2975,6 @@
if (PAGE_CACHE_SIZE <= OCFS2_SB(sb)->s_clustersize)
BUG_ON(PageDirty(page));
- if (PageReadahead(page)) {
- page_cache_async_readahead(mapping,
- &file->f_ra, file,
- page, page_index,
- readahead_pages);
- }
-
if (!PageUptodate(page)) {
ret = block_read_full_page(page, ocfs2_get_block);
if (ret) {
@@ -3004,7 +2994,8 @@
}
}
- ocfs2_map_and_dirty_page(inode, handle, from, to,
+ ocfs2_map_and_dirty_page(inode,
+ handle, from, to,
page, 0, &new_block);
mark_page_accessed(page);
unlock:
@@ -3020,12 +3011,11 @@
}
int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
- struct file *file,
+ struct inode *inode,
u32 cpos, u32 old_cluster,
u32 new_cluster, u32 new_len)
{
int ret = 0;
- struct inode *inode = file_inode(file);
struct super_block *sb = inode->i_sb;
struct ocfs2_caching_info *ci = INODE_CACHE(inode);
int i, blocks = ocfs2_clusters_to_blocks(sb, new_len);
@@ -3150,7 +3140,7 @@
/*If the old clusters is unwritten, no need to duplicate. */
if (!(ext_flags & OCFS2_EXT_UNWRITTEN)) {
- ret = context->cow_duplicate_clusters(handle, context->file,
+ ret = context->cow_duplicate_clusters(handle, context->inode,
cpos, old, new, len);
if (ret) {
mlog_errno(ret);
@@ -3428,35 +3418,12 @@
return ret;
}
-static void ocfs2_readahead_for_cow(struct inode *inode,
- struct file *file,
- u32 start, u32 len)
-{
- struct address_space *mapping;
- pgoff_t index;
- unsigned long num_pages;
- int cs_bits = OCFS2_SB(inode->i_sb)->s_clustersize_bits;
-
- if (!file)
- return;
-
- mapping = file->f_mapping;
- num_pages = (len << cs_bits) >> PAGE_CACHE_SHIFT;
- if (!num_pages)
- num_pages = 1;
-
- index = ((loff_t)start << cs_bits) >> PAGE_CACHE_SHIFT;
- page_cache_sync_readahead(mapping, &file->f_ra, file,
- index, num_pages);
-}
-
/*
* Starting at cpos, try to CoW write_len clusters. Don't CoW
* past max_cpos. This will stop when it runs into a hole or an
* unrefcounted extent.
*/
static int ocfs2_refcount_cow_hunk(struct inode *inode,
- struct file *file,
struct buffer_head *di_bh,
u32 cpos, u32 write_len, u32 max_cpos)
{
@@ -3485,8 +3452,6 @@
BUG_ON(cow_len == 0);
- ocfs2_readahead_for_cow(inode, file, cow_start, cow_len);
-
context = kzalloc(sizeof(struct ocfs2_cow_context), GFP_NOFS);
if (!context) {
ret = -ENOMEM;
@@ -3508,7 +3473,6 @@
context->ref_root_bh = ref_root_bh;
context->cow_duplicate_clusters = ocfs2_duplicate_clusters_by_page;
context->get_clusters = ocfs2_di_get_clusters;
- context->file = file;
ocfs2_init_dinode_extent_tree(&context->data_et,
INODE_CACHE(inode), di_bh);
@@ -3537,7 +3501,6 @@
* clusters between cpos and cpos+write_len are safe to modify.
*/
int ocfs2_refcount_cow(struct inode *inode,
- struct file *file,
struct buffer_head *di_bh,
u32 cpos, u32 write_len, u32 max_cpos)
{
@@ -3557,7 +3520,7 @@
num_clusters = write_len;
if (ext_flags & OCFS2_EXT_REFCOUNTED) {
- ret = ocfs2_refcount_cow_hunk(inode, file, di_bh, cpos,
+ ret = ocfs2_refcount_cow_hunk(inode, di_bh, cpos,
num_clusters, max_cpos);
if (ret) {
mlog_errno(ret);
diff --git a/fs/ocfs2/refcounttree.h b/fs/ocfs2/refcounttree.h
index 7754608..6422bbc 100644
--- a/fs/ocfs2/refcounttree.h
+++ b/fs/ocfs2/refcounttree.h
@@ -53,7 +53,7 @@
int *credits,
int *ref_blocks);
int ocfs2_refcount_cow(struct inode *inode,
- struct file *filep, struct buffer_head *di_bh,
+ struct buffer_head *di_bh,
u32 cpos, u32 write_len, u32 max_cpos);
typedef int (ocfs2_post_refcount_func)(struct inode *inode,
@@ -85,11 +85,11 @@
u32 cpos, u32 write_len,
struct ocfs2_post_refcount *post);
int ocfs2_duplicate_clusters_by_page(handle_t *handle,
- struct file *file,
+ struct inode *inode,
u32 cpos, u32 old_cluster,
u32 new_cluster, u32 new_len);
int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
- struct file *file,
+ struct inode *inode,
u32 cpos, u32 old_cluster,
u32 new_cluster, u32 new_len);
int ocfs2_cow_sync_writeback(struct super_block *sb,
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index 75f2890..0ff80f9 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -230,8 +230,6 @@
if (!dir_emit_dots(file, ctx))
goto out;
- if (!dir_emit_dots(file, ctx))
- goto out;
files = get_files_struct(p);
if (!files)
goto out;
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 94441a4..737e156 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -271,7 +271,7 @@
de = next;
} while (de);
spin_unlock(&proc_subdir_lock);
- return 0;
+ return 1;
}
int proc_readdir(struct file *file, struct dir_context *ctx)
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 229e366..e0a790d 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -205,7 +205,9 @@
static int proc_root_readdir(struct file *file, struct dir_context *ctx)
{
if (ctx->pos < FIRST_PROCESS_ENTRY) {
- proc_readdir(file, ctx);
+ int error = proc_readdir(file, ctx);
+ if (unlikely(error <= 0))
+ return error;
ctx->pos = FIRST_PROCESS_ENTRY;
}
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index dbf61f6..107d026 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -730,8 +730,16 @@
* of how soft-dirty works.
*/
pte_t ptent = *pte;
- ptent = pte_wrprotect(ptent);
- ptent = pte_clear_flags(ptent, _PAGE_SOFT_DIRTY);
+
+ if (pte_present(ptent)) {
+ ptent = pte_wrprotect(ptent);
+ ptent = pte_clear_flags(ptent, _PAGE_SOFT_DIRTY);
+ } else if (is_swap_pte(ptent)) {
+ ptent = pte_swp_clear_soft_dirty(ptent);
+ } else if (pte_file(ptent)) {
+ ptent = pte_file_clear_soft_dirty(ptent);
+ }
+
set_pte_at(vma->vm_mm, addr, pte, ptent);
#endif
}
@@ -752,14 +760,15 @@
pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
for (; addr != end; pte++, addr += PAGE_SIZE) {
ptent = *pte;
- if (!pte_present(ptent))
- continue;
if (cp->type == CLEAR_REFS_SOFT_DIRTY) {
clear_soft_dirty(vma, addr, pte);
continue;
}
+ if (!pte_present(ptent))
+ continue;
+
page = vm_normal_page(vma, addr, ptent);
if (!page)
continue;
@@ -859,7 +868,7 @@
} pagemap_entry_t;
struct pagemapread {
- int pos, len;
+ int pos, len; /* units: PM_ENTRY_BYTES, not bytes */
pagemap_entry_t *buffer;
bool v2;
};
@@ -867,7 +876,7 @@
#define PAGEMAP_WALK_SIZE (PMD_SIZE)
#define PAGEMAP_WALK_MASK (PMD_MASK)
-#define PM_ENTRY_BYTES sizeof(u64)
+#define PM_ENTRY_BYTES sizeof(pagemap_entry_t)
#define PM_STATUS_BITS 3
#define PM_STATUS_OFFSET (64 - PM_STATUS_BITS)
#define PM_STATUS_MASK (((1LL << PM_STATUS_BITS) - 1) << PM_STATUS_OFFSET)
@@ -930,8 +939,10 @@
flags = PM_PRESENT;
page = vm_normal_page(vma, addr, pte);
} else if (is_swap_pte(pte)) {
- swp_entry_t entry = pte_to_swp_entry(pte);
-
+ swp_entry_t entry;
+ if (pte_swp_soft_dirty(pte))
+ flags2 |= __PM_SOFT_DIRTY;
+ entry = pte_to_swp_entry(pte);
frame = swp_type(entry) |
(swp_offset(entry) << MAX_SWAPFILES_SHIFT);
flags = PM_SWAP;
@@ -1116,8 +1127,8 @@
goto out_task;
pm.v2 = soft_dirty_cleared;
- pm.len = PM_ENTRY_BYTES * (PAGEMAP_WALK_SIZE >> PAGE_SHIFT);
- pm.buffer = kmalloc(pm.len, GFP_TEMPORARY);
+ pm.len = (PAGEMAP_WALK_SIZE >> PAGE_SHIFT);
+ pm.buffer = kmalloc(pm.len * PM_ENTRY_BYTES, GFP_TEMPORARY);
ret = -ENOMEM;
if (!pm.buffer)
goto out_task;
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index a87eeda..22650cd 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -56,6 +56,16 @@
acpi_status
acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
+
+bool acpi_has_method(acpi_handle handle, char *name);
+acpi_status acpi_execute_simple_method(acpi_handle handle, char *method,
+ u64 arg);
+acpi_status acpi_evaluate_ej0(acpi_handle handle);
+acpi_status acpi_evaluate_lck(acpi_handle handle, int lock);
+bool acpi_ata_match(acpi_handle handle);
+bool acpi_bay_match(acpi_handle handle);
+bool acpi_dock_match(acpi_handle handle);
+
#ifdef CONFIG_ACPI
#include <linux/proc_fs.h>
@@ -352,8 +362,6 @@
extern int register_acpi_notifier(struct notifier_block *);
extern int unregister_acpi_notifier(struct notifier_block *);
-extern int register_acpi_bus_notifier(struct notifier_block *nb);
-extern void unregister_acpi_bus_notifier(struct notifier_block *nb);
/*
* External Functions
*/
@@ -468,7 +476,8 @@
if (p)
*p = ACPI_STATE_D0;
- return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3) ? m : ACPI_STATE_D0;
+ return (m >= ACPI_STATE_D0 && m <= ACPI_STATE_D3_COLD) ?
+ m : ACPI_STATE_D0;
}
static inline void acpi_dev_pm_add_dependent(acpi_handle handle,
struct device *depdev) {}
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index b420939..1cedfcb 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -113,14 +113,13 @@
Dock Station
-------------------------------------------------------------------------- */
struct acpi_dock_ops {
+ acpi_notify_handler fixup;
acpi_notify_handler handler;
acpi_notify_handler uevent;
};
-#if defined(CONFIG_ACPI_DOCK) || defined(CONFIG_ACPI_DOCK_MODULE)
+#ifdef CONFIG_ACPI_DOCK
extern int is_dock_device(acpi_handle handle);
-extern int register_dock_notifier(struct notifier_block *nb);
-extern void unregister_dock_notifier(struct notifier_block *nb);
extern int register_hotplug_dock_device(acpi_handle handle,
const struct acpi_dock_ops *ops,
void *context,
@@ -132,13 +131,6 @@
{
return 0;
}
-static inline int register_dock_notifier(struct notifier_block *nb)
-{
- return -ENODEV;
-}
-static inline void unregister_dock_notifier(struct notifier_block *nb)
-{
-}
static inline int register_hotplug_dock_device(acpi_handle handle,
const struct acpi_dock_ops *ops,
void *context,
@@ -150,6 +142,6 @@
static inline void unregister_hotplug_dock_device(acpi_handle handle)
{
}
-#endif
+#endif /* CONFIG_ACPI_DOCK */
#endif /*__ACPI_DRIVERS_H__*/
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 22d497e..85bfdbe 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20130517
+#define ACPI_CA_VERSION 0x20130725
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
@@ -147,6 +147,8 @@
acpi_status acpi_remove_interface(acpi_string interface_name);
+acpi_status acpi_update_interfaces(u8 action);
+
u32
acpi_check_address_range(acpi_adr_space_type space_id,
acpi_physical_address address,
@@ -210,8 +212,8 @@
acpi_walk_namespace(acpi_object_type type,
acpi_handle start_object,
u32 max_depth,
- acpi_walk_callback pre_order_visit,
- acpi_walk_callback post_order_visit,
+ acpi_walk_callback descending_callback,
+ acpi_walk_callback ascending_callback,
void *context, void **return_value);
acpi_status
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 22b03c9..b748aef 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -668,13 +668,6 @@
#define ACPI_EVENT_FLAG_SET (acpi_event_status) 0x04
#define ACPI_EVENT_FLAG_HANDLE (acpi_event_status) 0x08
-/*
- * General Purpose Events (GPE)
- */
-#define ACPI_GPE_INVALID 0xFF
-#define ACPI_GPE_MAX 0xFF
-#define ACPI_NUM_GPE 256
-
/* Actions for acpi_set_gpe, acpi_gpe_wakeup, acpi_hw_low_set_gpe */
#define ACPI_GPE_ENABLE 0
@@ -1144,7 +1137,19 @@
#endif
};
-/* Definitions for _OSI support */
+/* Definitions of _OSI support */
+
+#define ACPI_VENDOR_STRINGS 0x01
+#define ACPI_FEATURE_STRINGS 0x02
+#define ACPI_ENABLE_INTERFACES 0x00
+#define ACPI_DISABLE_INTERFACES 0x04
+
+#define ACPI_DISABLE_ALL_VENDOR_STRINGS (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS)
+#define ACPI_DISABLE_ALL_FEATURE_STRINGS (ACPI_DISABLE_INTERFACES | ACPI_FEATURE_STRINGS)
+#define ACPI_DISABLE_ALL_STRINGS (ACPI_DISABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
+#define ACPI_ENABLE_ALL_VENDOR_STRINGS (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS)
+#define ACPI_ENABLE_ALL_FEATURE_STRINGS (ACPI_ENABLE_INTERFACES | ACPI_FEATURE_STRINGS)
+#define ACPI_ENABLE_ALL_STRINGS (ACPI_ENABLE_INTERFACES | ACPI_VENDOR_STRINGS | ACPI_FEATURE_STRINGS)
#define ACPI_OSI_WIN_2000 0x01
#define ACPI_OSI_WIN_XP 0x02
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 2f47ade..0807ddf 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -417,6 +417,36 @@
{
return pmd;
}
+
+static inline pte_t pte_swp_mksoft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline int pte_swp_soft_dirty(pte_t pte)
+{
+ return 0;
+}
+
+static inline pte_t pte_swp_clear_soft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline pte_t pte_file_clear_soft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline pte_t pte_file_mksoft_dirty(pte_t pte)
+{
+ return pte;
+}
+
+static inline int pte_file_soft_dirty(pte_t pte)
+{
+ return 0;
+}
#endif
#ifndef __HAVE_PFNMAP_TRACKING
diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h
index 13821c3..5672d7e 100644
--- a/include/asm-generic/tlb.h
+++ b/include/asm-generic/tlb.h
@@ -112,7 +112,7 @@
#define HAVE_GENERIC_MMU_GATHER
-void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, bool fullmm);
+void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end);
void tlb_flush_mmu(struct mmu_gather *tlb);
void tlb_finish_mmu(struct mmu_gather *tlb, unsigned long start,
unsigned long end);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 353ba25..a5db4ae 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -481,6 +481,13 @@
acpi_status acpi_os_prepare_sleep(u8 sleep_state,
u32 pm1a_control, u32 pm1b_control);
+
+void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
+ u32 val_a, u32 val_b));
+
+acpi_status acpi_os_prepare_extended_sleep(u8 sleep_state,
+ u32 val_a, u32 val_b);
+
#ifdef CONFIG_X86
void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
#else
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ab0eade..801ff9e 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -28,6 +28,7 @@
extern int register_cpu(struct cpu *cpu, int num);
extern struct device *get_cpu_device(unsigned cpu);
extern bool cpu_is_hotpluggable(unsigned cpu);
+extern bool arch_match_cpu_phys_id(int cpu, u64 phys_id);
extern int cpu_add_dev_attr(struct device_attribute *attr);
extern void cpu_remove_dev_attr(struct device_attribute *attr);
@@ -172,6 +173,8 @@
#ifdef CONFIG_HOTPLUG_CPU
/* Stop CPUs going up and down. */
+extern void cpu_hotplug_begin(void);
+extern void cpu_hotplug_done(void);
extern void get_online_cpus(void);
extern void put_online_cpus(void);
extern void cpu_hotplug_disable(void);
@@ -197,6 +200,8 @@
#else /* CONFIG_HOTPLUG_CPU */
+static inline void cpu_hotplug_begin(void) {}
+static inline void cpu_hotplug_done(void) {}
#define get_online_cpus() do { } while (0)
#define put_online_cpus() do { } while (0)
#define cpu_hotplug_disable() do { } while (0)
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 90d5a15..d568f39 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -11,71 +11,36 @@
#ifndef _LINUX_CPUFREQ_H
#define _LINUX_CPUFREQ_H
-#include <asm/cputime.h>
-#include <linux/mutex.h>
-#include <linux/notifier.h>
-#include <linux/threads.h>
-#include <linux/kobject.h>
-#include <linux/sysfs.h>
-#include <linux/completion.h>
-#include <linux/workqueue.h>
#include <linux/cpumask.h>
-#include <asm/div64.h>
-
-#define CPUFREQ_NAME_LEN 16
-/* Print length for names. Extra 1 space for accomodating '\n' in prints */
-#define CPUFREQ_NAME_PLEN (CPUFREQ_NAME_LEN + 1)
+#include <linux/completion.h>
+#include <linux/kobject.h>
+#include <linux/notifier.h>
+#include <linux/sysfs.h>
/*********************************************************************
- * CPUFREQ NOTIFIER INTERFACE *
+ * CPUFREQ INTERFACE *
*********************************************************************/
-
-#define CPUFREQ_TRANSITION_NOTIFIER (0)
-#define CPUFREQ_POLICY_NOTIFIER (1)
-
-#ifdef CONFIG_CPU_FREQ
-int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list);
-int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list);
-extern void disable_cpufreq(void);
-#else /* CONFIG_CPU_FREQ */
-static inline int cpufreq_register_notifier(struct notifier_block *nb,
- unsigned int list)
-{
- return 0;
-}
-static inline int cpufreq_unregister_notifier(struct notifier_block *nb,
- unsigned int list)
-{
- return 0;
-}
-static inline void disable_cpufreq(void) { }
-#endif /* CONFIG_CPU_FREQ */
-
-/* if (cpufreq_driver->target) exists, the ->governor decides what frequency
- * within the limits is used. If (cpufreq_driver->setpolicy> exists, these
- * two generic policies are available:
- */
-
-#define CPUFREQ_POLICY_POWERSAVE (1)
-#define CPUFREQ_POLICY_PERFORMANCE (2)
-
-/* Frequency values here are CPU kHz so that hardware which doesn't run
- * with some frequencies can complain without having to guess what per
- * cent / per mille means.
+/*
+ * Frequency values here are CPU kHz
+ *
* Maximum transition latency is in nanoseconds - if it's unknown,
* CPUFREQ_ETERNAL shall be used.
*/
+#define CPUFREQ_ETERNAL (-1)
+#define CPUFREQ_NAME_LEN 16
+/* Print length for names. Extra 1 space for accomodating '\n' in prints */
+#define CPUFREQ_NAME_PLEN (CPUFREQ_NAME_LEN + 1)
+
struct cpufreq_governor;
-/* /sys/devices/system/cpu/cpufreq: entry point for global variables */
-extern struct kobject *cpufreq_global_kobject;
-int cpufreq_get_global_kobject(void);
-void cpufreq_put_global_kobject(void);
-int cpufreq_sysfs_create_file(const struct attribute *attr);
-void cpufreq_sysfs_remove_file(const struct attribute *attr);
+struct cpufreq_freqs {
+ unsigned int cpu; /* cpu nr */
+ unsigned int old;
+ unsigned int new;
+ u8 flags; /* flags of cpufreq_driver, see below. */
+};
-#define CPUFREQ_ETERNAL (-1)
struct cpufreq_cpuinfo {
unsigned int max_freq;
unsigned int min_freq;
@@ -117,111 +82,59 @@
struct cpufreq_real_policy user_policy;
+ struct list_head policy_list;
struct kobject kobj;
struct completion kobj_unregister;
int transition_ongoing; /* Tracks transition status */
};
-#define CPUFREQ_ADJUST (0)
-#define CPUFREQ_INCOMPATIBLE (1)
-#define CPUFREQ_NOTIFY (2)
-#define CPUFREQ_START (3)
-#define CPUFREQ_UPDATE_POLICY_CPU (4)
-
/* Only for ACPI */
#define CPUFREQ_SHARED_TYPE_NONE (0) /* None */
#define CPUFREQ_SHARED_TYPE_HW (1) /* HW does needed coordination */
#define CPUFREQ_SHARED_TYPE_ALL (2) /* All dependent CPUs should set freq */
#define CPUFREQ_SHARED_TYPE_ANY (3) /* Freq can be set from any dependent CPU*/
+struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
+void cpufreq_cpu_put(struct cpufreq_policy *policy);
+
static inline bool policy_is_shared(struct cpufreq_policy *policy)
{
return cpumask_weight(policy->cpus) > 1;
}
-/******************** cpufreq transition notifiers *******************/
+/* /sys/devices/system/cpu/cpufreq: entry point for global variables */
+extern struct kobject *cpufreq_global_kobject;
+int cpufreq_get_global_kobject(void);
+void cpufreq_put_global_kobject(void);
+int cpufreq_sysfs_create_file(const struct attribute *attr);
+void cpufreq_sysfs_remove_file(const struct attribute *attr);
-#define CPUFREQ_PRECHANGE (0)
-#define CPUFREQ_POSTCHANGE (1)
-#define CPUFREQ_RESUMECHANGE (8)
-#define CPUFREQ_SUSPENDCHANGE (9)
+#ifdef CONFIG_CPU_FREQ
+unsigned int cpufreq_get(unsigned int cpu);
+unsigned int cpufreq_quick_get(unsigned int cpu);
+unsigned int cpufreq_quick_get_max(unsigned int cpu);
+void disable_cpufreq(void);
-struct cpufreq_freqs {
- unsigned int cpu; /* cpu nr */
- unsigned int old;
- unsigned int new;
- u8 flags; /* flags of cpufreq_driver, see below. */
-};
-
-/**
- * cpufreq_scale - "old * mult / div" calculation for large values (32-bit-arch
- * safe)
- * @old: old value
- * @div: divisor
- * @mult: multiplier
- *
- *
- * new = old * mult / div
- */
-static inline unsigned long cpufreq_scale(unsigned long old, u_int div,
- u_int mult)
+u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy);
+int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu);
+int cpufreq_update_policy(unsigned int cpu);
+bool have_governor_per_policy(void);
+struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy);
+#else
+static inline unsigned int cpufreq_get(unsigned int cpu)
{
-#if BITS_PER_LONG == 32
-
- u64 result = ((u64) old) * ((u64) mult);
- do_div(result, div);
- return (unsigned long) result;
-
-#elif BITS_PER_LONG == 64
-
- unsigned long result = old * ((u64) mult);
- result /= div;
- return result;
-
+ return 0;
+}
+static inline unsigned int cpufreq_quick_get(unsigned int cpu)
+{
+ return 0;
+}
+static inline unsigned int cpufreq_quick_get_max(unsigned int cpu)
+{
+ return 0;
+}
+static inline void disable_cpufreq(void) { }
#endif
-};
-
-/*********************************************************************
- * CPUFREQ GOVERNORS *
- *********************************************************************/
-
-#define CPUFREQ_GOV_START 1
-#define CPUFREQ_GOV_STOP 2
-#define CPUFREQ_GOV_LIMITS 3
-#define CPUFREQ_GOV_POLICY_INIT 4
-#define CPUFREQ_GOV_POLICY_EXIT 5
-
-struct cpufreq_governor {
- char name[CPUFREQ_NAME_LEN];
- int initialized;
- int (*governor) (struct cpufreq_policy *policy,
- unsigned int event);
- ssize_t (*show_setspeed) (struct cpufreq_policy *policy,
- char *buf);
- int (*store_setspeed) (struct cpufreq_policy *policy,
- unsigned int freq);
- unsigned int max_transition_latency; /* HW must be able to switch to
- next freq faster than this value in nano secs or we
- will fallback to performance governor */
- struct list_head governor_list;
- struct module *owner;
-};
-
-/*
- * Pass a target to the cpufreq driver.
- */
-extern int cpufreq_driver_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation);
-extern int __cpufreq_driver_target(struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation);
-
-extern int __cpufreq_driver_getavg(struct cpufreq_policy *policy,
- unsigned int cpu);
-
-int cpufreq_register_governor(struct cpufreq_governor *governor);
-void cpufreq_unregister_governor(struct cpufreq_governor *governor);
/*********************************************************************
* CPUFREQ DRIVER INTERFACE *
@@ -230,76 +143,6 @@
#define CPUFREQ_RELATION_L 0 /* lowest frequency at or above target */
#define CPUFREQ_RELATION_H 1 /* highest frequency below or at target */
-struct freq_attr;
-
-struct cpufreq_driver {
- struct module *owner;
- char name[CPUFREQ_NAME_LEN];
- u8 flags;
- /*
- * This should be set by platforms having multiple clock-domains, i.e.
- * supporting multiple policies. With this sysfs directories of governor
- * would be created in cpu/cpu<num>/cpufreq/ directory and so they can
- * use the same governor with different tunables for different clusters.
- */
- bool have_governor_per_policy;
-
- /* needed by all drivers */
- int (*init) (struct cpufreq_policy *policy);
- int (*verify) (struct cpufreq_policy *policy);
-
- /* define one out of two */
- int (*setpolicy) (struct cpufreq_policy *policy);
- int (*target) (struct cpufreq_policy *policy,
- unsigned int target_freq,
- unsigned int relation);
-
- /* should be defined, if possible */
- unsigned int (*get) (unsigned int cpu);
-
- /* optional */
- unsigned int (*getavg) (struct cpufreq_policy *policy,
- unsigned int cpu);
- int (*bios_limit) (int cpu, unsigned int *limit);
-
- int (*exit) (struct cpufreq_policy *policy);
- int (*suspend) (struct cpufreq_policy *policy);
- int (*resume) (struct cpufreq_policy *policy);
- struct freq_attr **attr;
-};
-
-/* flags */
-
-#define CPUFREQ_STICKY 0x01 /* the driver isn't removed even if
- * all ->init() calls failed */
-#define CPUFREQ_CONST_LOOPS 0x02 /* loops_per_jiffy or other kernel
- * "constants" aren't affected by
- * frequency transitions */
-#define CPUFREQ_PM_NO_WARN 0x04 /* don't warn on suspend/resume speed
- * mismatches */
-
-int cpufreq_register_driver(struct cpufreq_driver *driver_data);
-int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
-
-void cpufreq_notify_transition(struct cpufreq_policy *policy,
- struct cpufreq_freqs *freqs, unsigned int state);
-
-static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
- unsigned int min, unsigned int max)
-{
- if (policy->min < min)
- policy->min = min;
- if (policy->max < min)
- policy->max = min;
- if (policy->min > max)
- policy->min = max;
- if (policy->max > max)
- policy->max = max;
- if (policy->min > policy->max)
- policy->min = policy->max;
- return;
-}
-
struct freq_attr {
struct attribute attr;
ssize_t (*show)(struct cpufreq_policy *, char *);
@@ -334,52 +177,181 @@
static struct global_attr _name = \
__ATTR(_name, 0644, show_##_name, store_##_name)
-struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
-void cpufreq_cpu_put(struct cpufreq_policy *data);
+
+struct cpufreq_driver {
+ char name[CPUFREQ_NAME_LEN];
+ u8 flags;
+ /*
+ * This should be set by platforms having multiple clock-domains, i.e.
+ * supporting multiple policies. With this sysfs directories of governor
+ * would be created in cpu/cpu<num>/cpufreq/ directory and so they can
+ * use the same governor with different tunables for different clusters.
+ */
+ bool have_governor_per_policy;
+
+ /* needed by all drivers */
+ int (*init) (struct cpufreq_policy *policy);
+ int (*verify) (struct cpufreq_policy *policy);
+
+ /* define one out of two */
+ int (*setpolicy) (struct cpufreq_policy *policy);
+ int (*target) (struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int relation);
+
+ /* should be defined, if possible */
+ unsigned int (*get) (unsigned int cpu);
+
+ /* optional */
+ int (*bios_limit) (int cpu, unsigned int *limit);
+
+ int (*exit) (struct cpufreq_policy *policy);
+ int (*suspend) (struct cpufreq_policy *policy);
+ int (*resume) (struct cpufreq_policy *policy);
+ struct freq_attr **attr;
+};
+
+/* flags */
+#define CPUFREQ_STICKY 0x01 /* the driver isn't removed even if
+ * all ->init() calls failed */
+#define CPUFREQ_CONST_LOOPS 0x02 /* loops_per_jiffy or other kernel
+ * "constants" aren't affected by
+ * frequency transitions */
+#define CPUFREQ_PM_NO_WARN 0x04 /* don't warn on suspend/resume speed
+ * mismatches */
+
+int cpufreq_register_driver(struct cpufreq_driver *driver_data);
+int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
+
const char *cpufreq_get_current_driver(void);
-/*********************************************************************
- * CPUFREQ 2.6. INTERFACE *
- *********************************************************************/
-u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy);
-int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu);
-int cpufreq_update_policy(unsigned int cpu);
-bool have_governor_per_policy(void);
-struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy);
-
-#ifdef CONFIG_CPU_FREQ
-/*
- * query the current CPU frequency (in kHz). If zero, cpufreq couldn't detect it
- */
-unsigned int cpufreq_get(unsigned int cpu);
-#else
-static inline unsigned int cpufreq_get(unsigned int cpu)
+static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
+ unsigned int min, unsigned int max)
{
- return 0;
+ if (policy->min < min)
+ policy->min = min;
+ if (policy->max < min)
+ policy->max = min;
+ if (policy->min > max)
+ policy->min = max;
+ if (policy->max > max)
+ policy->max = max;
+ if (policy->min > policy->max)
+ policy->min = policy->max;
+ return;
}
-#endif
-
-/*
- * query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it
- */
-#ifdef CONFIG_CPU_FREQ
-unsigned int cpufreq_quick_get(unsigned int cpu);
-unsigned int cpufreq_quick_get_max(unsigned int cpu);
-#else
-static inline unsigned int cpufreq_quick_get(unsigned int cpu)
-{
- return 0;
-}
-static inline unsigned int cpufreq_quick_get_max(unsigned int cpu)
-{
- return 0;
-}
-#endif
/*********************************************************************
- * CPUFREQ DEFAULT GOVERNOR *
+ * CPUFREQ NOTIFIER INTERFACE *
*********************************************************************/
+#define CPUFREQ_TRANSITION_NOTIFIER (0)
+#define CPUFREQ_POLICY_NOTIFIER (1)
+
+/* Transition notifiers */
+#define CPUFREQ_PRECHANGE (0)
+#define CPUFREQ_POSTCHANGE (1)
+#define CPUFREQ_RESUMECHANGE (8)
+#define CPUFREQ_SUSPENDCHANGE (9)
+
+/* Policy Notifiers */
+#define CPUFREQ_ADJUST (0)
+#define CPUFREQ_INCOMPATIBLE (1)
+#define CPUFREQ_NOTIFY (2)
+#define CPUFREQ_START (3)
+#define CPUFREQ_UPDATE_POLICY_CPU (4)
+
+#ifdef CONFIG_CPU_FREQ
+int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list);
+int cpufreq_unregister_notifier(struct notifier_block *nb, unsigned int list);
+
+void cpufreq_notify_transition(struct cpufreq_policy *policy,
+ struct cpufreq_freqs *freqs, unsigned int state);
+
+#else /* CONFIG_CPU_FREQ */
+static inline int cpufreq_register_notifier(struct notifier_block *nb,
+ unsigned int list)
+{
+ return 0;
+}
+static inline int cpufreq_unregister_notifier(struct notifier_block *nb,
+ unsigned int list)
+{
+ return 0;
+}
+#endif /* !CONFIG_CPU_FREQ */
+
+/**
+ * cpufreq_scale - "old * mult / div" calculation for large values (32-bit-arch
+ * safe)
+ * @old: old value
+ * @div: divisor
+ * @mult: multiplier
+ *
+ *
+ * new = old * mult / div
+ */
+static inline unsigned long cpufreq_scale(unsigned long old, u_int div,
+ u_int mult)
+{
+#if BITS_PER_LONG == 32
+ u64 result = ((u64) old) * ((u64) mult);
+ do_div(result, div);
+ return (unsigned long) result;
+
+#elif BITS_PER_LONG == 64
+ unsigned long result = old * ((u64) mult);
+ result /= div;
+ return result;
+#endif
+}
+
+/*********************************************************************
+ * CPUFREQ GOVERNORS *
+ *********************************************************************/
+
+/*
+ * If (cpufreq_driver->target) exists, the ->governor decides what frequency
+ * within the limits is used. If (cpufreq_driver->setpolicy> exists, these
+ * two generic policies are available:
+ */
+#define CPUFREQ_POLICY_POWERSAVE (1)
+#define CPUFREQ_POLICY_PERFORMANCE (2)
+
+/* Governor Events */
+#define CPUFREQ_GOV_START 1
+#define CPUFREQ_GOV_STOP 2
+#define CPUFREQ_GOV_LIMITS 3
+#define CPUFREQ_GOV_POLICY_INIT 4
+#define CPUFREQ_GOV_POLICY_EXIT 5
+
+struct cpufreq_governor {
+ char name[CPUFREQ_NAME_LEN];
+ int initialized;
+ int (*governor) (struct cpufreq_policy *policy,
+ unsigned int event);
+ ssize_t (*show_setspeed) (struct cpufreq_policy *policy,
+ char *buf);
+ int (*store_setspeed) (struct cpufreq_policy *policy,
+ unsigned int freq);
+ unsigned int max_transition_latency; /* HW must be able to switch to
+ next freq faster than this value in nano secs or we
+ will fallback to performance governor */
+ struct list_head governor_list;
+ struct module *owner;
+};
+
+/* Pass a target to the cpufreq driver */
+int cpufreq_driver_target(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int relation);
+int __cpufreq_driver_target(struct cpufreq_policy *policy,
+ unsigned int target_freq,
+ unsigned int relation);
+int cpufreq_register_governor(struct cpufreq_governor *governor);
+void cpufreq_unregister_governor(struct cpufreq_governor *governor);
+
+/* CPUFREQ DEFAULT GOVERNOR */
/*
* Performance governor is fallback governor if any other gov failed to auto
* load due latency restrictions
@@ -428,18 +400,16 @@
unsigned int relation,
unsigned int *index);
-/* the following 3 funtions are for cpufreq core use only */
+void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy);
+ssize_t cpufreq_show_cpus(const struct cpumask *mask, char *buf);
+
+/* the following funtion is for cpufreq core use only */
struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu);
/* the following are really really optional */
extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
-
void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
unsigned int cpu);
-void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy);
-
void cpufreq_frequency_table_put_attr(unsigned int cpu);
-ssize_t cpufreq_show_cpus(const struct cpumask *mask, char *buf);
-
#endif /* _LINUX_CPUFREQ_H */
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 0bc4b74..781addc 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -13,8 +13,6 @@
#include <linux/percpu.h>
#include <linux/list.h>
-#include <linux/kobject.h>
-#include <linux/completion.h>
#include <linux/hrtimer.h>
#define CPUIDLE_STATE_MAX 10
@@ -61,6 +59,10 @@
#define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000)
+struct cpuidle_device_kobj;
+struct cpuidle_state_kobj;
+struct cpuidle_driver_kobj;
+
struct cpuidle_device {
unsigned int registered:1;
unsigned int enabled:1;
@@ -71,9 +73,8 @@
struct cpuidle_state_usage states_usage[CPUIDLE_STATE_MAX];
struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX];
struct cpuidle_driver_kobj *kobj_driver;
+ struct cpuidle_device_kobj *kobj_dev;
struct list_head device_list;
- struct kobject kobj;
- struct completion kobj_unregister;
#ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
int safe_state_index;
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index b90337c..4a12532 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -336,6 +336,7 @@
* helper function for dentry_operations.d_dname() members
*/
extern char *dynamic_dname(struct dentry *, char *, int, const char *, ...);
+extern char *simple_dname(struct dentry *, char *, int);
extern char *__d_path(const struct path *, const struct path *, char *, int);
extern char *d_absolute_path(const struct path *, char *, int);
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index b99cd23..79640e01 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -5,45 +5,13 @@
#include <linux/bitmap.h>
#include <linux/if.h>
+#include <linux/ip.h>
#include <linux/netdevice.h>
#include <linux/rcupdate.h>
#include <linux/timer.h>
#include <linux/sysctl.h>
#include <linux/rtnetlink.h>
-enum
-{
- IPV4_DEVCONF_FORWARDING=1,
- IPV4_DEVCONF_MC_FORWARDING,
- IPV4_DEVCONF_PROXY_ARP,
- IPV4_DEVCONF_ACCEPT_REDIRECTS,
- IPV4_DEVCONF_SECURE_REDIRECTS,
- IPV4_DEVCONF_SEND_REDIRECTS,
- IPV4_DEVCONF_SHARED_MEDIA,
- IPV4_DEVCONF_RP_FILTER,
- IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE,
- IPV4_DEVCONF_BOOTP_RELAY,
- IPV4_DEVCONF_LOG_MARTIANS,
- IPV4_DEVCONF_TAG,
- IPV4_DEVCONF_ARPFILTER,
- IPV4_DEVCONF_MEDIUM_ID,
- IPV4_DEVCONF_NOXFRM,
- IPV4_DEVCONF_NOPOLICY,
- IPV4_DEVCONF_FORCE_IGMP_VERSION,
- IPV4_DEVCONF_ARP_ANNOUNCE,
- IPV4_DEVCONF_ARP_IGNORE,
- IPV4_DEVCONF_PROMOTE_SECONDARIES,
- IPV4_DEVCONF_ARP_ACCEPT,
- IPV4_DEVCONF_ARP_NOTIFY,
- IPV4_DEVCONF_ACCEPT_LOCAL,
- IPV4_DEVCONF_SRC_VMARK,
- IPV4_DEVCONF_PROXY_ARP_PVLAN,
- IPV4_DEVCONF_ROUTE_LOCALNET,
- __IPV4_DEVCONF_MAX
-};
-
-#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1)
-
struct ipv4_devconf {
void *sysctl;
int data[IPV4_DEVCONF_MAX];
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 850e95b..b8b7dc7 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -101,6 +101,7 @@
#define IP6SKB_FORWARDED 2
#define IP6SKB_REROUTED 4
#define IP6SKB_ROUTERALERT 8
+#define IP6SKB_FRAGMENTED 16
};
#define IP6CB(skb) ((struct inet6_skb_parm*)((skb)->cb))
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 737685e..68029b3 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -309,21 +309,20 @@
__be16 max_desc_sz_rq;
u8 rsvd21[2];
__be16 max_desc_sz_sq_dc;
- u8 rsvd22[4];
- __be16 max_qp_mcg;
- u8 rsvd23;
+ __be32 max_qp_mcg;
+ u8 rsvd22[3];
u8 log_max_mcg;
- u8 rsvd24;
+ u8 rsvd23;
u8 log_max_pd;
- u8 rsvd25;
+ u8 rsvd24;
u8 log_max_xrcd;
- u8 rsvd26[42];
+ u8 rsvd25[42];
__be16 log_uar_page_sz;
- u8 rsvd27[28];
+ u8 rsvd26[28];
u8 log_msx_atomic_size_qp;
- u8 rsvd28[2];
+ u8 rsvd27[2];
u8 log_msx_atomic_size_dc;
- u8 rsvd29[76];
+ u8 rsvd28[76];
};
@@ -472,9 +471,8 @@
struct mlx5_eqe_page_req {
u8 rsvd0[2];
__be16 func_id;
- u8 rsvd1[2];
- __be16 num_pages;
- __be32 rsvd2[5];
+ __be32 num_pages;
+ __be32 rsvd1[5];
};
union ev_data {
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 2aa258b..8888381 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -358,7 +358,7 @@
u32 reserved_lkey;
u8 local_ca_ack_delay;
u8 log_max_mcg;
- u16 max_qp_mcg;
+ u32 max_qp_mcg;
int min_page_sz;
};
@@ -691,7 +691,7 @@
int mlx5_pagealloc_start(struct mlx5_core_dev *dev);
void mlx5_pagealloc_stop(struct mlx5_core_dev *dev);
void mlx5_core_req_pages_handler(struct mlx5_core_dev *dev, u16 func_id,
- s16 npages);
+ s32 npages);
int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot);
int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev);
void mlx5_register_debugfs(void);
@@ -731,9 +731,6 @@
int mlx5_db_alloc(struct mlx5_core_dev *dev, struct mlx5_db *db);
void mlx5_db_free(struct mlx5_core_dev *dev, struct mlx5_db *db);
-typedef void (*health_handler_t)(struct pci_dev *pdev, struct health_buffer __iomem *buf, int size);
-int mlx5_register_health_report_handler(health_handler_t handler);
-void mlx5_unregister_health_report_handler(void);
const char *mlx5_command_str(int command);
int mlx5_cmdif_debugfs_init(struct mlx5_core_dev *dev);
void mlx5_cmdif_debugfs_cleanup(struct mlx5_core_dev *dev);
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index fb425aa..faf4b7c 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -332,6 +332,7 @@
unsigned long pgoff, unsigned long flags);
#endif
unsigned long mmap_base; /* base of mmap area */
+ unsigned long mmap_legacy_base; /* base of mmap area in bottom-up allocations */
unsigned long task_size; /* size of task vm space */
unsigned long highest_vm_end; /* highest vma end address */
pgd_t * pgd;
diff --git a/include/linux/of.h b/include/linux/of.h
index 1fd08ca..c0bb2f1 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -266,6 +266,7 @@
extern const void *of_get_property(const struct device_node *node,
const char *name,
int *lenp);
+extern struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
#define for_each_property_of_node(dn, pp) \
for (pp = dn->properties; pp != NULL; pp = pp->next)
@@ -459,6 +460,12 @@
return NULL;
}
+static inline struct device_node *of_get_cpu_node(int cpu,
+ unsigned int *thread)
+{
+ return NULL;
+}
+
static inline int of_property_read_u64(const struct device_node *np,
const char *propname, u64 *out_value)
{
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 9d27475f..82ce324 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -1,6 +1,7 @@
#ifndef _LINUX_OF_DEVICE_H
#define _LINUX_OF_DEVICE_H
+#include <linux/cpu.h>
#include <linux/platform_device.h>
#include <linux/of_platform.h> /* temporary until merge */
@@ -43,6 +44,15 @@
of_node_put(dev->of_node);
}
+static inline struct device_node *of_cpu_device_node_get(int cpu)
+{
+ struct device *cpu_dev;
+ cpu_dev = get_cpu_device(cpu);
+ if (!cpu_dev)
+ return NULL;
+ return of_node_get(cpu_dev->of_node);
+}
+
#else /* CONFIG_OF */
static inline int of_driver_match_device(struct device *dev,
@@ -67,6 +77,11 @@
{
return NULL;
}
+
+static inline struct device_node *of_cpu_device_node_get(int cpu)
+{
+ return NULL;
+}
#endif /* CONFIG_OF */
#endif /* _LINUX_OF_DEVICE_H */
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index 1704479..d006f0c 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -47,24 +47,22 @@
#ifdef CONFIG_ACPI_PCI_SLOT
void acpi_pci_slot_init(void);
-void acpi_pci_slot_enumerate(struct pci_bus *bus, acpi_handle handle);
+void acpi_pci_slot_enumerate(struct pci_bus *bus);
void acpi_pci_slot_remove(struct pci_bus *bus);
#else
static inline void acpi_pci_slot_init(void) { }
-static inline void acpi_pci_slot_enumerate(struct pci_bus *bus,
- acpi_handle handle) { }
+static inline void acpi_pci_slot_enumerate(struct pci_bus *bus) { }
static inline void acpi_pci_slot_remove(struct pci_bus *bus) { }
#endif
#ifdef CONFIG_HOTPLUG_PCI_ACPI
void acpiphp_init(void);
-void acpiphp_enumerate_slots(struct pci_bus *bus, acpi_handle handle);
+void acpiphp_enumerate_slots(struct pci_bus *bus);
void acpiphp_remove_slots(struct pci_bus *bus);
void acpiphp_check_host_bridge(acpi_handle handle);
#else
static inline void acpiphp_init(void) { }
-static inline void acpiphp_enumerate_slots(struct pci_bus *bus,
- acpi_handle handle) { }
+static inline void acpiphp_enumerate_slots(struct pci_bus *bus) { }
static inline void acpiphp_remove_slots(struct pci_bus *bus) { }
static inline void acpiphp_check_host_bridge(acpi_handle handle) { }
#endif
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d722490..078066d 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1532,6 +1532,8 @@
* Test if a process is not yet dead (at most zombie state)
* If pid_alive fails, then pointers within the task structure
* can be stale and must not be dereferenced.
+ *
+ * Return: 1 if the process is alive. 0 otherwise.
*/
static inline int pid_alive(struct task_struct *p)
{
@@ -1543,6 +1545,8 @@
* @tsk: Task structure to be checked.
*
* Check if a task structure is the first user space task the kernel created.
+ *
+ * Return: 1 if the task structure is init. 0 otherwise.
*/
static inline int is_global_init(struct task_struct *tsk)
{
@@ -1894,6 +1898,8 @@
/**
* is_idle_task - is the specified task an idle task?
* @p: the task in question.
+ *
+ * Return: 1 if @p is an idle task. 0 otherwise.
*/
static inline bool is_idle_task(const struct task_struct *p)
{
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 7d537ce..75f3494 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -117,9 +117,17 @@
#endif /*arch_spin_is_contended*/
#endif
-/* The lock does not imply full memory barrier. */
-#ifndef ARCH_HAS_SMP_MB_AFTER_LOCK
-static inline void smp_mb__after_lock(void) { smp_mb(); }
+/*
+ * Despite its name it doesn't necessarily has to be a full barrier.
+ * It should only guarantee that a STORE before the critical section
+ * can not be reordered with a LOAD inside this section.
+ * spin_lock() is the one-way barrier, this LOAD can not escape out
+ * of the region. So the default implementation simply ensures that
+ * a STORE can not move into the critical section, smp_wmb() should
+ * serialize it with another STORE done by spin_lock().
+ */
+#ifndef smp_mb__before_spinlock
+#define smp_mb__before_spinlock() smp_wmb()
#endif
/**
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index c5fd30d..8d4fa82 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -67,6 +67,8 @@
swp_entry_t arch_entry;
BUG_ON(pte_file(pte));
+ if (pte_swp_soft_dirty(pte))
+ pte = pte_swp_clear_soft_dirty(pte);
arch_entry = __pte_to_swp_entry(pte);
return swp_entry(__swp_type(arch_entry), __swp_offset(arch_entry));
}
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 4147d70..84662ec 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -802,9 +802,14 @@
asmlinkage long sys_clone(unsigned long, unsigned long, int __user *, int,
int __user *);
#else
+#ifdef CONFIG_CLONE_BACKWARDS3
+asmlinkage long sys_clone(unsigned long, unsigned long, int, int __user *,
+ int __user *, int);
+#else
asmlinkage long sys_clone(unsigned long, unsigned long, int __user *,
int __user *, int);
#endif
+#endif
asmlinkage long sys_execve(const char __user *filename,
const char __user *const __user *argv,
diff --git a/include/linux/wait.h b/include/linux/wait.h
index f487a47..a67fc16 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -811,6 +811,63 @@
__ret; \
})
+#define __wait_event_interruptible_lock_irq_timeout(wq, condition, \
+ lock, ret) \
+do { \
+ DEFINE_WAIT(__wait); \
+ \
+ for (;;) { \
+ prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE); \
+ if (condition) \
+ break; \
+ if (signal_pending(current)) { \
+ ret = -ERESTARTSYS; \
+ break; \
+ } \
+ spin_unlock_irq(&lock); \
+ ret = schedule_timeout(ret); \
+ spin_lock_irq(&lock); \
+ if (!ret) \
+ break; \
+ } \
+ finish_wait(&wq, &__wait); \
+} while (0)
+
+/**
+ * wait_event_interruptible_lock_irq_timeout - sleep until a condition gets true or a timeout elapses.
+ * The condition is checked under the lock. This is expected
+ * to be called with the lock taken.
+ * @wq: the waitqueue to wait on
+ * @condition: a C expression for the event to wait for
+ * @lock: a locked spinlock_t, which will be released before schedule()
+ * and reacquired afterwards.
+ * @timeout: timeout, in jiffies
+ *
+ * The process is put to sleep (TASK_INTERRUPTIBLE) until the
+ * @condition evaluates to true or signal is received. The @condition is
+ * checked each time the waitqueue @wq is woken up.
+ *
+ * wake_up() has to be called after changing any variable that could
+ * change the result of the wait condition.
+ *
+ * This is supposed to be called while holding the lock. The lock is
+ * dropped before going to sleep and is reacquired afterwards.
+ *
+ * The function returns 0 if the @timeout elapsed, -ERESTARTSYS if it
+ * was interrupted by a signal, and the remaining jiffies otherwise
+ * if the condition evaluated to true before the timeout elapsed.
+ */
+#define wait_event_interruptible_lock_irq_timeout(wq, condition, lock, \
+ timeout) \
+({ \
+ int __ret = timeout; \
+ \
+ if (!(condition)) \
+ __wait_event_interruptible_lock_irq_timeout( \
+ wq, condition, lock, __ret); \
+ __ret; \
+})
+
/*
* These are the old interfaces to sleep waiting for an event.
diff --git a/include/net/busy_poll.h b/include/net/busy_poll.h
index f18b919..8a358a2 100644
--- a/include/net/busy_poll.h
+++ b/include/net/busy_poll.h
@@ -122,7 +122,7 @@
if (rc > 0)
/* local bh are disabled so it is ok to use _BH */
NET_ADD_STATS_BH(sock_net(sk),
- LINUX_MIB_LOWLATENCYRXPACKETS, rc);
+ LINUX_MIB_BUSYPOLLRXPACKETS, rc);
} while (!nonblock && skb_queue_empty(&sk->sk_receive_queue) &&
!need_resched() && !busy_loop_timeout(end_time));
@@ -162,11 +162,6 @@
return false;
}
-static inline bool sk_busy_poll(struct sock *sk, int nonblock)
-{
- return false;
-}
-
static inline void skb_mark_napi_id(struct sk_buff *skb,
struct napi_struct *napi)
{
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index 260f83f..f667248 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -135,6 +135,8 @@
extern void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk,
__be32 mtu);
extern void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark);
+extern void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif,
+ u32 mark);
extern void ip6_sk_redirect(struct sk_buff *skb, struct sock *sk);
struct netlink_callback;
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 781b3cf..a354db5 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -145,20 +145,6 @@
return INET_ECN_encapsulate(tos, inner);
}
-static inline void tunnel_ip_select_ident(struct sk_buff *skb,
- const struct iphdr *old_iph,
- struct dst_entry *dst)
-{
- struct iphdr *iph = ip_hdr(skb);
-
- /* Use inner packet iph-id if possible. */
- if (skb->protocol == htons(ETH_P_IP) && old_iph->id)
- iph->id = old_iph->id;
- else
- __ip_select_ident(iph, dst,
- (skb_shinfo(skb)->gso_segs ?: 1) - 1);
-}
-
int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto);
int iptunnel_xmit(struct net *net, struct rtable *rt,
struct sk_buff *skb,
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 6eab6336..e5ae0c5 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -683,13 +683,19 @@
u64 rate_bytes_ps; /* bytes per second */
u32 mult;
u16 overhead;
+ u8 linklayer;
u8 shift;
};
static inline u64 psched_l2t_ns(const struct psched_ratecfg *r,
unsigned int len)
{
- return ((u64)(len + r->overhead) * r->mult) >> r->shift;
+ len += r->overhead;
+
+ if (unlikely(r->linklayer == TC_LINKLAYER_ATM))
+ return ((u64)(DIV_ROUND_UP(len,48)*53) * r->mult) >> r->shift;
+
+ return ((u64)len * r->mult) >> r->shift;
}
extern void psched_ratecfg_precompute(struct psched_ratecfg *r, const struct tc_ratespec *conf);
@@ -700,6 +706,7 @@
memset(res, 0, sizeof(*res));
res->rate = r->rate_bytes_ps;
res->overhead = r->overhead;
+ res->linklayer = (r->linklayer & TC_LINKLAYER_MASK);
}
#endif
diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 8e42410..cda100d 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -66,6 +66,43 @@
TP_printk("state=%lu", (unsigned long)__entry->state)
);
+TRACE_EVENT(device_pm_report_time,
+
+ TP_PROTO(struct device *dev, const char *pm_ops, s64 ops_time,
+ char *pm_event_str, int error),
+
+ TP_ARGS(dev, pm_ops, ops_time, pm_event_str, error),
+
+ TP_STRUCT__entry(
+ __string(device, dev_name(dev))
+ __string(driver, dev_driver_string(dev))
+ __string(parent, dev->parent ? dev_name(dev->parent) : "none")
+ __string(pm_ops, pm_ops ? pm_ops : "none ")
+ __string(pm_event_str, pm_event_str)
+ __field(s64, ops_time)
+ __field(int, error)
+ ),
+
+ TP_fast_assign(
+ const char *tmp = dev->parent ? dev_name(dev->parent) : "none";
+ const char *tmp_i = pm_ops ? pm_ops : "none ";
+
+ __assign_str(device, dev_name(dev));
+ __assign_str(driver, dev_driver_string(dev));
+ __assign_str(parent, tmp);
+ __assign_str(pm_ops, tmp_i);
+ __assign_str(pm_event_str, pm_event_str);
+ __entry->ops_time = ops_time;
+ __entry->error = error;
+ ),
+
+ /* ops_str has an extra space at the end */
+ TP_printk("%s %s parent=%s state=%s ops=%snsecs=%lld err=%d",
+ __get_str(driver), __get_str(device), __get_str(parent),
+ __get_str(pm_event_str), __get_str(pm_ops),
+ __entry->ops_time, __entry->error)
+);
+
DECLARE_EVENT_CLASS(wakeup_source,
TP_PROTO(const char *name, unsigned int state),
diff --git a/include/uapi/linux/ip.h b/include/uapi/linux/ip.h
index 6cf06bf..2fee45b 100644
--- a/include/uapi/linux/ip.h
+++ b/include/uapi/linux/ip.h
@@ -133,4 +133,38 @@
__u8 reserved;
};
+/* index values for the variables in ipv4_devconf */
+enum
+{
+ IPV4_DEVCONF_FORWARDING=1,
+ IPV4_DEVCONF_MC_FORWARDING,
+ IPV4_DEVCONF_PROXY_ARP,
+ IPV4_DEVCONF_ACCEPT_REDIRECTS,
+ IPV4_DEVCONF_SECURE_REDIRECTS,
+ IPV4_DEVCONF_SEND_REDIRECTS,
+ IPV4_DEVCONF_SHARED_MEDIA,
+ IPV4_DEVCONF_RP_FILTER,
+ IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE,
+ IPV4_DEVCONF_BOOTP_RELAY,
+ IPV4_DEVCONF_LOG_MARTIANS,
+ IPV4_DEVCONF_TAG,
+ IPV4_DEVCONF_ARPFILTER,
+ IPV4_DEVCONF_MEDIUM_ID,
+ IPV4_DEVCONF_NOXFRM,
+ IPV4_DEVCONF_NOPOLICY,
+ IPV4_DEVCONF_FORCE_IGMP_VERSION,
+ IPV4_DEVCONF_ARP_ANNOUNCE,
+ IPV4_DEVCONF_ARP_IGNORE,
+ IPV4_DEVCONF_PROMOTE_SECONDARIES,
+ IPV4_DEVCONF_ARP_ACCEPT,
+ IPV4_DEVCONF_ARP_NOTIFY,
+ IPV4_DEVCONF_ACCEPT_LOCAL,
+ IPV4_DEVCONF_SRC_VMARK,
+ IPV4_DEVCONF_PROXY_ARP_PVLAN,
+ IPV4_DEVCONF_ROUTE_LOCALNET,
+ __IPV4_DEVCONF_MAX
+};
+
+#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1)
+
#endif /* _UAPI_LINUX_IP_H */
diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index dbd71b0..09d62b92 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -73,9 +73,17 @@
#define TC_H_ROOT (0xFFFFFFFFU)
#define TC_H_INGRESS (0xFFFFFFF1U)
+/* Need to corrospond to iproute2 tc/tc_core.h "enum link_layer" */
+enum tc_link_layer {
+ TC_LINKLAYER_UNAWARE, /* Indicate unaware old iproute2 util */
+ TC_LINKLAYER_ETHERNET,
+ TC_LINKLAYER_ATM,
+};
+#define TC_LINKLAYER_MASK 0x0F /* limit use to lower 4 bits */
+
struct tc_ratespec {
unsigned char cell_log;
- unsigned char __reserved;
+ __u8 linklayer; /* lower 4 bits */
unsigned short overhead;
short cell_align;
unsigned short mpu;
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index af0a674..a1356d3 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -253,7 +253,7 @@
LINUX_MIB_TCPFASTOPENLISTENOVERFLOW, /* TCPFastOpenListenOverflow */
LINUX_MIB_TCPFASTOPENCOOKIEREQD, /* TCPFastOpenCookieReqd */
LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES, /* TCPSpuriousRtxHostQueues */
- LINUX_MIB_LOWLATENCYRXPACKETS, /* LowLatencyRxPackets */
+ LINUX_MIB_BUSYPOLLRXPACKETS, /* BusyPollRxPackets */
__LINUX_MIB_MAX
};
diff --git a/include/xen/acpi.h b/include/xen/acpi.h
index 46aa3d1..4ddd7dc 100644
--- a/include/xen/acpi.h
+++ b/include/xen/acpi.h
@@ -75,8 +75,10 @@
return -ENXIO;
}
-int xen_acpi_notify_hypervisor_state(u8 sleep_state,
+int xen_acpi_notify_hypervisor_sleep(u8 sleep_state,
u32 pm1a_cnt, u32 pm1b_cnd);
+int xen_acpi_notify_hypervisor_extended_sleep(u8 sleep_state,
+ u32 val_a, u32 val_b);
static inline int xen_acpi_suspend_lowlevel(void)
{
@@ -93,7 +95,9 @@
{
if (xen_initial_domain()) {
acpi_os_set_prepare_sleep(
- &xen_acpi_notify_hypervisor_state);
+ &xen_acpi_notify_hypervisor_sleep);
+ acpi_os_set_prepare_extended_sleep(
+ &xen_acpi_notify_hypervisor_extended_sleep);
acpi_suspend_lowlevel = xen_acpi_suspend_lowlevel;
}
diff --git a/include/xen/interface/platform.h b/include/xen/interface/platform.h
index c57d5f6..f1331e3 100644
--- a/include/xen/interface/platform.h
+++ b/include/xen/interface/platform.h
@@ -152,10 +152,11 @@
#define XENPF_enter_acpi_sleep 51
struct xenpf_enter_acpi_sleep {
/* IN variables */
- uint16_t pm1a_cnt_val; /* PM1a control value. */
- uint16_t pm1b_cnt_val; /* PM1b control value. */
+ uint16_t val_a; /* PM1a control / sleep type A. */
+ uint16_t val_b; /* PM1b control / sleep type B. */
uint32_t sleep_state; /* Which state to enter (Sn). */
- uint32_t flags; /* Must be zero. */
+#define XENPF_ACPI_SLEEP_EXTENDED 0x00000001
+ uint32_t flags; /* XENPF_ACPI_SLEEP_*. */
};
DEFINE_GUEST_HANDLE_STRUCT(xenpf_enter_acpi_sleep_t);
diff --git a/init/Kconfig b/init/Kconfig
index 247084b..fed81b5 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -955,7 +955,7 @@
Memory Resource Controller Swap Extension comes with its price in
a bigger memory consumption. General purpose distribution kernels
which want to enable the feature but keep it disabled by default
- and let the user enable it by swapaccount boot command line
+ and let the user enable it by swapaccount=1 boot command line
parameter should have this option unselected.
For those who want to have the feature enabled by default should
select this option (if, for some reason, they need to disable it
diff --git a/kernel/cpu.c b/kernel/cpu.c
index b2b227b..d7f07a2 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -113,7 +113,7 @@
* get_online_cpus() not an api which is called all that often.
*
*/
-static void cpu_hotplug_begin(void)
+void cpu_hotplug_begin(void)
{
cpu_hotplug.active_writer = current;
@@ -127,7 +127,7 @@
}
}
-static void cpu_hotplug_done(void)
+void cpu_hotplug_done(void)
{
cpu_hotplug.active_writer = NULL;
mutex_unlock(&cpu_hotplug.lock);
@@ -154,10 +154,7 @@
cpu_maps_update_done();
}
-#else /* #if CONFIG_HOTPLUG_CPU */
-static void cpu_hotplug_begin(void) {}
-static void cpu_hotplug_done(void) {}
-#endif /* #else #if CONFIG_HOTPLUG_CPU */
+#endif /* CONFIG_HOTPLUG_CPU */
/* Need to know about CPUs going up/down? */
int __ref register_cpu_notifier(struct notifier_block *nb)
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index e565778..ea1966d 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -475,13 +475,17 @@
/*
* Cpusets with tasks - existing or newly being attached - can't
- * have empty cpus_allowed or mems_allowed.
+ * be changed to have empty cpus_allowed or mems_allowed.
*/
ret = -ENOSPC;
- if ((cgroup_task_count(cur->css.cgroup) || cur->attach_in_progress) &&
- (cpumask_empty(trial->cpus_allowed) &&
- nodes_empty(trial->mems_allowed)))
- goto out;
+ if ((cgroup_task_count(cur->css.cgroup) || cur->attach_in_progress)) {
+ if (!cpumask_empty(cur->cpus_allowed) &&
+ cpumask_empty(trial->cpus_allowed))
+ goto out;
+ if (!nodes_empty(cur->mems_allowed) &&
+ nodes_empty(trial->mems_allowed))
+ goto out;
+ }
ret = 0;
out:
@@ -1608,11 +1612,13 @@
{
struct cpuset *cs = cgroup_cs(cgrp);
cpuset_filetype_t type = cft->private;
- int retval = -ENODEV;
+ int retval = 0;
mutex_lock(&cpuset_mutex);
- if (!is_cpuset_online(cs))
+ if (!is_cpuset_online(cs)) {
+ retval = -ENODEV;
goto out_unlock;
+ }
switch (type) {
case FILE_CPU_EXCLUSIVE:
diff --git a/kernel/fork.c b/kernel/fork.c
index 403d2bb..e23bb19 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1679,6 +1679,12 @@
int __user *, parent_tidptr,
int __user *, child_tidptr,
int, tls_val)
+#elif defined(CONFIG_CLONE_BACKWARDS3)
+SYSCALL_DEFINE6(clone, unsigned long, clone_flags, unsigned long, newsp,
+ int, stack_size,
+ int __user *, parent_tidptr,
+ int __user *, child_tidptr,
+ int, tls_val)
#else
SYSCALL_DEFINE5(clone, unsigned long, clone_flags, unsigned long, newsp,
int __user *, parent_tidptr,
diff --git a/kernel/mutex.c b/kernel/mutex.c
index ff05f4b..a52ee7bb 100644
--- a/kernel/mutex.c
+++ b/kernel/mutex.c
@@ -686,7 +686,7 @@
might_sleep();
ret = __mutex_lock_common(&lock->base, TASK_UNINTERRUPTIBLE,
0, &ctx->dep_map, _RET_IP_, ctx);
- if (!ret && ctx->acquired > 0)
+ if (!ret && ctx->acquired > 1)
return ww_mutex_deadlock_injection(lock, ctx);
return ret;
@@ -702,7 +702,7 @@
ret = __mutex_lock_common(&lock->base, TASK_INTERRUPTIBLE,
0, &ctx->dep_map, _RET_IP_, ctx);
- if (!ret && ctx->acquired > 0)
+ if (!ret && ctx->acquired > 1)
return ww_mutex_deadlock_injection(lock, ctx);
return ret;
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 06fe285..a394297 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -296,6 +296,17 @@
}
EXPORT_SYMBOL_GPL(pm_qos_request_active);
+static void __pm_qos_update_request(struct pm_qos_request *req,
+ s32 new_value)
+{
+ trace_pm_qos_update_request(req->pm_qos_class, new_value);
+
+ if (new_value != req->node.prio)
+ pm_qos_update_target(
+ pm_qos_array[req->pm_qos_class]->constraints,
+ &req->node, PM_QOS_UPDATE_REQ, new_value);
+}
+
/**
* pm_qos_work_fn - the timeout handler of pm_qos_update_request_timeout
* @work: work struct for the delayed work (timeout)
@@ -308,7 +319,7 @@
struct pm_qos_request,
work);
- pm_qos_update_request(req, PM_QOS_DEFAULT_VALUE);
+ __pm_qos_update_request(req, PM_QOS_DEFAULT_VALUE);
}
/**
@@ -364,12 +375,7 @@
}
cancel_delayed_work_sync(&req->work);
-
- trace_pm_qos_update_request(req->pm_qos_class, new_value);
- if (new_value != req->node.prio)
- pm_qos_update_target(
- pm_qos_array[req->pm_qos_class]->constraints,
- &req->node, PM_QOS_UPDATE_REQ, new_value);
+ __pm_qos_update_request(req, new_value);
}
EXPORT_SYMBOL_GPL(pm_qos_update_request);
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index ece0422..62ee437 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -210,6 +210,7 @@
goto Platform_wake;
}
+ ftrace_stop();
error = disable_nonboot_cpus();
if (error || suspend_test(TEST_CPUS))
goto Enable_cpus;
@@ -232,6 +233,7 @@
Enable_cpus:
enable_nonboot_cpus();
+ ftrace_start();
Platform_wake:
if (need_suspend_ops(state) && suspend_ops->wake)
@@ -265,7 +267,6 @@
goto Close;
}
suspend_console();
- ftrace_stop();
suspend_test_start();
error = dpm_suspend_start(PMSG_SUSPEND);
if (error) {
@@ -285,7 +286,6 @@
suspend_test_start();
dpm_resume_end(PMSG_RESUME);
suspend_test_finish("resume devices");
- ftrace_start();
resume_console();
Close:
if (need_suspend_ops(state) && suspend_ops->end)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b7c32cb..05c39f0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -933,6 +933,8 @@
/**
* task_curr - is this task currently executing on a CPU?
* @p: the task in question.
+ *
+ * Return: 1 if the task is currently executing. 0 otherwise.
*/
inline int task_curr(const struct task_struct *p)
{
@@ -1482,7 +1484,7 @@
* the simpler "current->state = TASK_RUNNING" to mark yourself
* runnable without the overhead of this.
*
- * Returns %true if @p was woken up, %false if it was already running
+ * Return: %true if @p was woken up, %false if it was already running.
* or @state didn't match @p's state.
*/
static int
@@ -1491,7 +1493,13 @@
unsigned long flags;
int cpu, success = 0;
- smp_wmb();
+ /*
+ * If we are going to wake up a thread waiting for CONDITION we
+ * need to ensure that CONDITION=1 done by the caller can not be
+ * reordered with p->state check below. This pairs with mb() in
+ * set_current_state() the waiting thread does.
+ */
+ smp_mb__before_spinlock();
raw_spin_lock_irqsave(&p->pi_lock, flags);
if (!(p->state & state))
goto out;
@@ -1577,8 +1585,9 @@
* @p: The process to be woken up.
*
* Attempt to wake up the nominated process and move it to the set of runnable
- * processes. Returns 1 if the process was woken up, 0 if it was already
- * running.
+ * processes.
+ *
+ * Return: 1 if the process was woken up, 0 if it was already running.
*
* It may be assumed that this function implies a write memory barrier before
* changing the task state if and only if any tasks are woken up.
@@ -2191,6 +2200,8 @@
* This makes sure that uptime, CFS vruntime, load
* balancing, etc... continue to move forward, even
* with a very low granularity.
+ *
+ * Return: Maximum deferment in nanoseconds.
*/
u64 scheduler_tick_max_deferment(void)
{
@@ -2394,6 +2405,12 @@
if (sched_feat(HRTICK))
hrtick_clear(rq);
+ /*
+ * Make sure that signal_pending_state()->signal_pending() below
+ * can't be reordered with __set_current_state(TASK_INTERRUPTIBLE)
+ * done by the caller to avoid the race with signal_wake_up().
+ */
+ smp_mb__before_spinlock();
raw_spin_lock_irq(&rq->lock);
switch_count = &prev->nivcsw;
@@ -2796,8 +2813,8 @@
* specified timeout to expire. The timeout is in jiffies. It is not
* interruptible.
*
- * The return value is 0 if timed out, and positive (at least 1, or number of
- * jiffies left till timeout) if completed.
+ * Return: 0 if timed out, and positive (at least 1, or number of jiffies left
+ * till timeout) if completed.
*/
unsigned long __sched
wait_for_completion_timeout(struct completion *x, unsigned long timeout)
@@ -2829,8 +2846,8 @@
* specified timeout to expire. The timeout is in jiffies. It is not
* interruptible. The caller is accounted as waiting for IO.
*
- * The return value is 0 if timed out, and positive (at least 1, or number of
- * jiffies left till timeout) if completed.
+ * Return: 0 if timed out, and positive (at least 1, or number of jiffies left
+ * till timeout) if completed.
*/
unsigned long __sched
wait_for_completion_io_timeout(struct completion *x, unsigned long timeout)
@@ -2846,7 +2863,7 @@
* This waits for completion of a specific task to be signaled. It is
* interruptible.
*
- * The return value is -ERESTARTSYS if interrupted, 0 if completed.
+ * Return: -ERESTARTSYS if interrupted, 0 if completed.
*/
int __sched wait_for_completion_interruptible(struct completion *x)
{
@@ -2865,8 +2882,8 @@
* This waits for either a completion of a specific task to be signaled or for a
* specified timeout to expire. It is interruptible. The timeout is in jiffies.
*
- * The return value is -ERESTARTSYS if interrupted, 0 if timed out,
- * positive (at least 1, or number of jiffies left till timeout) if completed.
+ * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
+ * or number of jiffies left till timeout) if completed.
*/
long __sched
wait_for_completion_interruptible_timeout(struct completion *x,
@@ -2883,7 +2900,7 @@
* This waits to be signaled for completion of a specific task. It can be
* interrupted by a kill signal.
*
- * The return value is -ERESTARTSYS if interrupted, 0 if completed.
+ * Return: -ERESTARTSYS if interrupted, 0 if completed.
*/
int __sched wait_for_completion_killable(struct completion *x)
{
@@ -2903,8 +2920,8 @@
* signaled or for a specified timeout to expire. It can be
* interrupted by a kill signal. The timeout is in jiffies.
*
- * The return value is -ERESTARTSYS if interrupted, 0 if timed out,
- * positive (at least 1, or number of jiffies left till timeout) if completed.
+ * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
+ * or number of jiffies left till timeout) if completed.
*/
long __sched
wait_for_completion_killable_timeout(struct completion *x,
@@ -2918,7 +2935,7 @@
* try_wait_for_completion - try to decrement a completion without blocking
* @x: completion structure
*
- * Returns: 0 if a decrement cannot be done without blocking
+ * Return: 0 if a decrement cannot be done without blocking
* 1 if a decrement succeeded.
*
* If a completion is being used as a counting completion,
@@ -2945,7 +2962,7 @@
* completion_done - Test to see if a completion has any waiters
* @x: completion structure
*
- * Returns: 0 if there are waiters (wait_for_completion() in progress)
+ * Return: 0 if there are waiters (wait_for_completion() in progress)
* 1 if there are no waiters.
*
*/
@@ -3182,7 +3199,7 @@
* task_prio - return the priority value of a given task.
* @p: the task in question.
*
- * This is the priority value as seen by users in /proc.
+ * Return: The priority value as seen by users in /proc.
* RT tasks are offset by -200. Normal tasks are centered
* around 0, value goes from -16 to +15.
*/
@@ -3194,6 +3211,8 @@
/**
* task_nice - return the nice value of a given task.
* @p: the task in question.
+ *
+ * Return: The nice value [ -20 ... 0 ... 19 ].
*/
int task_nice(const struct task_struct *p)
{
@@ -3204,6 +3223,8 @@
/**
* idle_cpu - is a given cpu idle currently?
* @cpu: the processor in question.
+ *
+ * Return: 1 if the CPU is currently idle. 0 otherwise.
*/
int idle_cpu(int cpu)
{
@@ -3226,6 +3247,8 @@
/**
* idle_task - return the idle task for a given cpu.
* @cpu: the processor in question.
+ *
+ * Return: The idle task for the cpu @cpu.
*/
struct task_struct *idle_task(int cpu)
{
@@ -3235,6 +3258,8 @@
/**
* find_process_by_pid - find a process with a matching PID value.
* @pid: the pid in question.
+ *
+ * The task of @pid, if found. %NULL otherwise.
*/
static struct task_struct *find_process_by_pid(pid_t pid)
{
@@ -3432,6 +3457,8 @@
* @policy: new policy.
* @param: structure containing the new RT priority.
*
+ * Return: 0 on success. An error code otherwise.
+ *
* NOTE that the task may be already dead.
*/
int sched_setscheduler(struct task_struct *p, int policy,
@@ -3451,6 +3478,8 @@
* current context has permission. For example, this is needed in
* stop_machine(): we create temporary high priority worker threads,
* but our caller might not have that capability.
+ *
+ * Return: 0 on success. An error code otherwise.
*/
int sched_setscheduler_nocheck(struct task_struct *p, int policy,
const struct sched_param *param)
@@ -3485,6 +3514,8 @@
* @pid: the pid in question.
* @policy: new policy.
* @param: structure containing the new RT priority.
+ *
+ * Return: 0 on success. An error code otherwise.
*/
SYSCALL_DEFINE3(sched_setscheduler, pid_t, pid, int, policy,
struct sched_param __user *, param)
@@ -3500,6 +3531,8 @@
* sys_sched_setparam - set/change the RT priority of a thread
* @pid: the pid in question.
* @param: structure containing the new RT priority.
+ *
+ * Return: 0 on success. An error code otherwise.
*/
SYSCALL_DEFINE2(sched_setparam, pid_t, pid, struct sched_param __user *, param)
{
@@ -3509,6 +3542,9 @@
/**
* sys_sched_getscheduler - get the policy (scheduling class) of a thread
* @pid: the pid in question.
+ *
+ * Return: On success, the policy of the thread. Otherwise, a negative error
+ * code.
*/
SYSCALL_DEFINE1(sched_getscheduler, pid_t, pid)
{
@@ -3535,6 +3571,9 @@
* sys_sched_getparam - get the RT priority of a thread
* @pid: the pid in question.
* @param: structure containing the RT priority.
+ *
+ * Return: On success, 0 and the RT priority is in @param. Otherwise, an error
+ * code.
*/
SYSCALL_DEFINE2(sched_getparam, pid_t, pid, struct sched_param __user *, param)
{
@@ -3659,6 +3698,8 @@
* @pid: pid of the process
* @len: length in bytes of the bitmask pointed to by user_mask_ptr
* @user_mask_ptr: user-space pointer to the new cpu mask
+ *
+ * Return: 0 on success. An error code otherwise.
*/
SYSCALL_DEFINE3(sched_setaffinity, pid_t, pid, unsigned int, len,
unsigned long __user *, user_mask_ptr)
@@ -3710,6 +3751,8 @@
* @pid: pid of the process
* @len: length in bytes of the bitmask pointed to by user_mask_ptr
* @user_mask_ptr: user-space pointer to hold the current cpu mask
+ *
+ * Return: 0 on success. An error code otherwise.
*/
SYSCALL_DEFINE3(sched_getaffinity, pid_t, pid, unsigned int, len,
unsigned long __user *, user_mask_ptr)
@@ -3744,6 +3787,8 @@
*
* This function yields the current CPU to other tasks. If there are no
* other threads running on this CPU then this function will return.
+ *
+ * Return: 0.
*/
SYSCALL_DEFINE0(sched_yield)
{
@@ -3869,7 +3914,7 @@
* It's the caller's job to ensure that the target task struct
* can't go away on us before we can do any checks.
*
- * Returns:
+ * Return:
* true (>0) if we indeed boosted the target task.
* false (0) if we failed to boost the target.
* -ESRCH if there's no task to yield to.
@@ -3972,8 +4017,9 @@
* sys_sched_get_priority_max - return maximum RT priority.
* @policy: scheduling class.
*
- * this syscall returns the maximum rt_priority that can be used
- * by a given scheduling class.
+ * Return: On success, this syscall returns the maximum
+ * rt_priority that can be used by a given scheduling class.
+ * On failure, a negative error code is returned.
*/
SYSCALL_DEFINE1(sched_get_priority_max, int, policy)
{
@@ -3997,8 +4043,9 @@
* sys_sched_get_priority_min - return minimum RT priority.
* @policy: scheduling class.
*
- * this syscall returns the minimum rt_priority that can be used
- * by a given scheduling class.
+ * Return: On success, this syscall returns the minimum
+ * rt_priority that can be used by a given scheduling class.
+ * On failure, a negative error code is returned.
*/
SYSCALL_DEFINE1(sched_get_priority_min, int, policy)
{
@@ -4024,6 +4071,9 @@
*
* this syscall writes the default timeslice value of a given process
* into the user-space timespec buffer. A value of '0' means infinity.
+ *
+ * Return: On success, 0 and the timeslice is in @interval. Otherwise,
+ * an error code.
*/
SYSCALL_DEFINE2(sched_rr_get_interval, pid_t, pid,
struct timespec __user *, interval)
@@ -6632,6 +6682,8 @@
* @cpu: the processor in question.
*
* ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED!
+ *
+ * Return: The current task for @cpu.
*/
struct task_struct *curr_task(int cpu)
{
diff --git a/kernel/sched/cpupri.c b/kernel/sched/cpupri.c
index 1095e87..8b836b3 100644
--- a/kernel/sched/cpupri.c
+++ b/kernel/sched/cpupri.c
@@ -62,7 +62,7 @@
* any discrepancies created by racing against the uncertainty of the current
* priority configuration.
*
- * Returns: (int)bool - CPUs were found
+ * Return: (int)bool - CPUs were found
*/
int cpupri_find(struct cpupri *cp, struct task_struct *p,
struct cpumask *lowest_mask)
@@ -203,7 +203,7 @@
* cpupri_init - initialize the cpupri structure
* @cp: The cpupri context
*
- * Returns: -ENOMEM if memory fails.
+ * Return: -ENOMEM on memory allocation failure.
*/
int cpupri_init(struct cpupri *cp)
{
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 9565645..68f1609 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2032,6 +2032,7 @@
*/
update_entity_load_avg(curr, 1);
update_cfs_rq_blocked_load(cfs_rq, 1);
+ update_cfs_shares(cfs_rq);
#ifdef CONFIG_SCHED_HRTICK
/*
@@ -4280,6 +4281,8 @@
* get_sd_load_idx - Obtain the load index for a given sched domain.
* @sd: The sched_domain whose load_idx is to be obtained.
* @idle: The Idle status of the CPU for whose sd load_icx is obtained.
+ *
+ * Return: The load index.
*/
static inline int get_sd_load_idx(struct sched_domain *sd,
enum cpu_idle_type idle)
@@ -4574,6 +4577,9 @@
*
* Determine if @sg is a busier group than the previously selected
* busiest group.
+ *
+ * Return: %true if @sg is a busier group than the previously selected
+ * busiest group. %false otherwise.
*/
static bool update_sd_pick_busiest(struct lb_env *env,
struct sd_lb_stats *sds,
@@ -4691,7 +4697,7 @@
* assuming lower CPU number will be equivalent to lower a SMT thread
* number.
*
- * Returns 1 when packing is required and a task should be moved to
+ * Return: 1 when packing is required and a task should be moved to
* this CPU. The amount of the imbalance is returned in *imbalance.
*
* @env: The load balancing environment.
@@ -4869,7 +4875,7 @@
* @balance: Pointer to a variable indicating if this_cpu
* is the appropriate cpu to perform load balancing at this_level.
*
- * Returns: - the busiest group if imbalance exists.
+ * Return: - The busiest group if imbalance exists.
* - If no imbalance and user has opted for power-savings balance,
* return the least loaded group whose CPUs can be
* put to idle by rebalancing its tasks onto our group.
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index a326f27..0b479a6 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -121,7 +121,7 @@
BUG_ON(bits > 32);
WARN_ON(!irqs_disabled());
read_sched_clock = read;
- sched_clock_mask = (1 << bits) - 1;
+ sched_clock_mask = (1ULL << bits) - 1;
cd.rate = rate;
/* calculate the mult/shift to convert counter ticks to ns. */
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index e77edc9..e8a1516 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -182,7 +182,8 @@
* Don't allow the user to think they can get
* full NO_HZ with this machine.
*/
- WARN_ONCE(1, "NO_HZ FULL will not work with unstable sched clock");
+ WARN_ONCE(have_nohz_full_mask,
+ "NO_HZ FULL will not work with unstable sched clock");
return false;
}
#endif
@@ -343,8 +344,6 @@
void __init tick_nohz_init(void)
{
- int cpu;
-
if (!have_nohz_full_mask) {
if (tick_nohz_init_all() < 0)
return;
diff --git a/kernel/wait.c b/kernel/wait.c
index dec68bd..d550920 100644
--- a/kernel/wait.c
+++ b/kernel/wait.c
@@ -363,8 +363,7 @@
/**
* wake_up_atomic_t - Wake up a waiter on a atomic_t
- * @word: The word being waited on, a kernel virtual address
- * @bit: The bit of the word being waited on
+ * @p: The atomic_t being waited on, a kernel virtual address
*
* Wake up anyone waiting for the atomic_t to go to zero.
*
diff --git a/lib/lz4/lz4_compress.c b/lib/lz4/lz4_compress.c
index fd94058..28321d8 100644
--- a/lib/lz4/lz4_compress.c
+++ b/lib/lz4/lz4_compress.c
@@ -437,7 +437,7 @@
exit:
return ret;
}
-EXPORT_SYMBOL_GPL(lz4_compress);
+EXPORT_SYMBOL(lz4_compress);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("LZ4 compressor");
diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c
index d3414ea..411be80 100644
--- a/lib/lz4/lz4_decompress.c
+++ b/lib/lz4/lz4_decompress.c
@@ -299,7 +299,7 @@
return ret;
}
#ifndef STATIC
-EXPORT_SYMBOL_GPL(lz4_decompress);
+EXPORT_SYMBOL(lz4_decompress);
#endif
int lz4_decompress_unknownoutputsize(const char *src, size_t src_len,
@@ -319,8 +319,8 @@
return ret;
}
#ifndef STATIC
-EXPORT_SYMBOL_GPL(lz4_decompress_unknownoutputsize);
+EXPORT_SYMBOL(lz4_decompress_unknownoutputsize);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("LZ4 Decompressor");
#endif
diff --git a/lib/lz4/lz4hc_compress.c b/lib/lz4/lz4hc_compress.c
index eb1a74f..f344f76 100644
--- a/lib/lz4/lz4hc_compress.c
+++ b/lib/lz4/lz4hc_compress.c
@@ -533,7 +533,7 @@
exit:
return ret;
}
-EXPORT_SYMBOL_GPL(lz4hc_compress);
+EXPORT_SYMBOL(lz4hc_compress);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("Dual BSD/GPL");
MODULE_DESCRIPTION("LZ4HC compressor");
diff --git a/mm/fremap.c b/mm/fremap.c
index 87da359..5bff081 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -57,17 +57,22 @@
unsigned long addr, unsigned long pgoff, pgprot_t prot)
{
int err = -ENOMEM;
- pte_t *pte;
+ pte_t *pte, ptfile;
spinlock_t *ptl;
pte = get_locked_pte(mm, addr, &ptl);
if (!pte)
goto out;
- if (!pte_none(*pte))
- zap_pte(mm, vma, addr, pte);
+ ptfile = pgoff_to_pte(pgoff);
- set_pte_at(mm, addr, pte, pgoff_to_pte(pgoff));
+ if (!pte_none(*pte)) {
+ if (pte_present(*pte) && pte_soft_dirty(*pte))
+ pte_file_mksoft_dirty(ptfile);
+ zap_pte(mm, vma, addr, pte);
+ }
+
+ set_pte_at(mm, addr, pte, ptfile);
/*
* We don't need to run update_mmu_cache() here because the "file pte"
* being installed by install_file_pte() is not a real pte - it's a
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 83aff0a..b60f330 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2490,7 +2490,7 @@
mm = vma->vm_mm;
- tlb_gather_mmu(&tlb, mm, 0);
+ tlb_gather_mmu(&tlb, mm, start, end);
__unmap_hugepage_range(&tlb, vma, start, end, ref_page);
tlb_finish_mmu(&tlb, start, end);
}
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c290a1c..0878ff7 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3195,11 +3195,11 @@
if (!s->memcg_params)
return -ENOMEM;
- INIT_WORK(&s->memcg_params->destroy,
- kmem_cache_destroy_work_func);
if (memcg) {
s->memcg_params->memcg = memcg;
s->memcg_params->root_cache = root_cache;
+ INIT_WORK(&s->memcg_params->destroy,
+ kmem_cache_destroy_work_func);
} else
s->memcg_params->is_root_cache = true;
@@ -6969,7 +6969,6 @@
#ifdef CONFIG_MEMCG_SWAP
static int __init enable_swap_account(char *s)
{
- /* consider enabled if no parameter or 1 is given */
if (!strcmp(s, "1"))
really_do_swap_account = 1;
else if (!strcmp(s, "0"))
diff --git a/mm/memory.c b/mm/memory.c
index 1ce2e2a..af84bc0 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -209,14 +209,15 @@
* tear-down from @mm. The @fullmm argument is used when @mm is without
* users and we're going to destroy the full address space (exit/execve).
*/
-void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, bool fullmm)
+void tlb_gather_mmu(struct mmu_gather *tlb, struct mm_struct *mm, unsigned long start, unsigned long end)
{
tlb->mm = mm;
- tlb->fullmm = fullmm;
+ /* Is it from 0 to ~0? */
+ tlb->fullmm = !(start | (end+1));
tlb->need_flush_all = 0;
- tlb->start = -1UL;
- tlb->end = 0;
+ tlb->start = start;
+ tlb->end = end;
tlb->need_flush = 0;
tlb->local.next = NULL;
tlb->local.nr = 0;
@@ -256,8 +257,6 @@
{
struct mmu_gather_batch *batch, *next;
- tlb->start = start;
- tlb->end = end;
tlb_flush_mmu(tlb);
/* keep the page table cache within bounds */
@@ -1099,7 +1098,6 @@
spinlock_t *ptl;
pte_t *start_pte;
pte_t *pte;
- unsigned long range_start = addr;
again:
init_rss_vec(rss);
@@ -1141,9 +1139,12 @@
continue;
if (unlikely(details) && details->nonlinear_vma
&& linear_page_index(details->nonlinear_vma,
- addr) != page->index)
- set_pte_at(mm, addr, pte,
- pgoff_to_pte(page->index));
+ addr) != page->index) {
+ pte_t ptfile = pgoff_to_pte(page->index);
+ if (pte_soft_dirty(ptent))
+ pte_file_mksoft_dirty(ptfile);
+ set_pte_at(mm, addr, pte, ptfile);
+ }
if (PageAnon(page))
rss[MM_ANONPAGES]--;
else {
@@ -1202,17 +1203,25 @@
* and page-free while holding it.
*/
if (force_flush) {
+ unsigned long old_end;
+
force_flush = 0;
-#ifdef HAVE_GENERIC_MMU_GATHER
- tlb->start = range_start;
+ /*
+ * Flush the TLB just for the previous segment,
+ * then update the range to be the remaining
+ * TLB range.
+ */
+ old_end = tlb->end;
tlb->end = addr;
-#endif
+
tlb_flush_mmu(tlb);
- if (addr != end) {
- range_start = addr;
+
+ tlb->start = addr;
+ tlb->end = old_end;
+
+ if (addr != end)
goto again;
- }
}
return addr;
@@ -1397,7 +1406,7 @@
unsigned long end = start + size;
lru_add_drain();
- tlb_gather_mmu(&tlb, mm, 0);
+ tlb_gather_mmu(&tlb, mm, start, end);
update_hiwater_rss(mm);
mmu_notifier_invalidate_range_start(mm, start, end);
for ( ; vma && vma->vm_start < end; vma = vma->vm_next)
@@ -1423,7 +1432,7 @@
unsigned long end = address + size;
lru_add_drain();
- tlb_gather_mmu(&tlb, mm, 0);
+ tlb_gather_mmu(&tlb, mm, address, end);
update_hiwater_rss(mm);
mmu_notifier_invalidate_range_start(mm, address, end);
unmap_single_vma(&tlb, vma, address, end, details);
@@ -3115,6 +3124,8 @@
exclusive = 1;
}
flush_icache_page(vma, page);
+ if (pte_swp_soft_dirty(orig_pte))
+ pte = pte_mksoft_dirty(pte);
set_pte_at(mm, address, page_table, pte);
if (page == swapcache)
do_page_add_anon_rmap(page, vma, address, exclusive);
@@ -3408,6 +3419,8 @@
entry = mk_pte(page, vma->vm_page_prot);
if (flags & FAULT_FLAG_WRITE)
entry = maybe_mkwrite(pte_mkdirty(entry), vma);
+ else if (pte_file(orig_pte) && pte_file_soft_dirty(orig_pte))
+ pte_mksoft_dirty(entry);
if (anon) {
inc_mm_counter_fast(mm, MM_ANONPAGES);
page_add_new_anon_rmap(page, vma, address);
diff --git a/mm/mmap.c b/mm/mmap.c
index 1edbaa3..f9c97d1 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2336,7 +2336,7 @@
struct mmu_gather tlb;
lru_add_drain();
- tlb_gather_mmu(&tlb, mm, 0);
+ tlb_gather_mmu(&tlb, mm, start, end);
update_hiwater_rss(mm);
unmap_vmas(&tlb, vma, start, end);
free_pgtables(&tlb, vma, prev ? prev->vm_end : FIRST_USER_ADDRESS,
@@ -2709,7 +2709,7 @@
lru_add_drain();
flush_cache_mm(mm);
- tlb_gather_mmu(&tlb, mm, 1);
+ tlb_gather_mmu(&tlb, mm, 0, -1);
/* update_hiwater_rss(mm) here? but nobody should be looking */
/* Use -1 here to ensure all VMAs in the mm are unmapped */
unmap_vmas(&tlb, vma, 0, -1);
diff --git a/mm/rmap.c b/mm/rmap.c
index cd356df..b2e29ac 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1236,6 +1236,7 @@
swp_entry_to_pte(make_hwpoison_entry(page)));
} else if (PageAnon(page)) {
swp_entry_t entry = { .val = page_private(page) };
+ pte_t swp_pte;
if (PageSwapCache(page)) {
/*
@@ -1264,7 +1265,10 @@
BUG_ON(TTU_ACTION(flags) != TTU_MIGRATION);
entry = make_migration_entry(page, pte_write(pteval));
}
- set_pte_at(mm, address, pte, swp_entry_to_pte(entry));
+ swp_pte = swp_entry_to_pte(entry);
+ if (pte_soft_dirty(pteval))
+ swp_pte = pte_swp_mksoft_dirty(swp_pte);
+ set_pte_at(mm, address, pte, swp_pte);
BUG_ON(pte_file(*pte));
} else if (IS_ENABLED(CONFIG_MIGRATION) &&
(TTU_ACTION(flags) == TTU_MIGRATION)) {
@@ -1401,8 +1405,12 @@
pteval = ptep_clear_flush(vma, address, pte);
/* If nonlinear, store the file page offset in the pte. */
- if (page->index != linear_page_index(vma, address))
- set_pte_at(mm, address, pte, pgoff_to_pte(page->index));
+ if (page->index != linear_page_index(vma, address)) {
+ pte_t ptfile = pgoff_to_pte(page->index);
+ if (pte_soft_dirty(pteval))
+ pte_file_mksoft_dirty(ptfile);
+ set_pte_at(mm, address, pte, ptfile);
+ }
/* Move the dirty bit to the physical page now the pte is gone. */
if (pte_dirty(pteval))
diff --git a/mm/shmem.c b/mm/shmem.c
index 8335dbd..e43dc55 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2909,14 +2909,8 @@
/* common code */
-static char *shmem_dname(struct dentry *dentry, char *buffer, int buflen)
-{
- return dynamic_dname(dentry, buffer, buflen, "/%s (deleted)",
- dentry->d_name.name);
-}
-
static struct dentry_operations anon_ops = {
- .d_dname = shmem_dname
+ .d_dname = simple_dname
};
/**
diff --git a/mm/swapfile.c b/mm/swapfile.c
index 36af6ee..6cf2e60 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -866,6 +866,21 @@
}
#endif /* CONFIG_HIBERNATION */
+static inline int maybe_same_pte(pte_t pte, pte_t swp_pte)
+{
+#ifdef CONFIG_MEM_SOFT_DIRTY
+ /*
+ * When pte keeps soft dirty bit the pte generated
+ * from swap entry does not has it, still it's same
+ * pte from logical point of view.
+ */
+ pte_t swp_pte_dirty = pte_swp_mksoft_dirty(swp_pte);
+ return pte_same(pte, swp_pte) || pte_same(pte, swp_pte_dirty);
+#else
+ return pte_same(pte, swp_pte);
+#endif
+}
+
/*
* No need to decide whether this PTE shares the swap entry with others,
* just let do_wp_page work it out if a write is requested later - to
@@ -892,7 +907,7 @@
}
pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl);
- if (unlikely(!pte_same(*pte, swp_entry_to_pte(entry)))) {
+ if (unlikely(!maybe_same_pte(*pte, swp_entry_to_pte(entry)))) {
mem_cgroup_cancel_charge_swapin(memcg);
ret = 0;
goto out;
@@ -947,7 +962,7 @@
* swapoff spends a _lot_ of time in this loop!
* Test inline before going to call unuse_pte.
*/
- if (unlikely(pte_same(*pte, swp_pte))) {
+ if (unlikely(maybe_same_pte(*pte, swp_pte))) {
pte_unmap(pte);
ret = unuse_pte(vma, pmd, addr, entry, page);
if (ret)
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index 4a78c4d..6ee48aa 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -91,7 +91,12 @@
struct net_device *vlan_dev_real_dev(const struct net_device *dev)
{
- return vlan_dev_priv(dev)->real_dev;
+ struct net_device *ret = vlan_dev_priv(dev)->real_dev;
+
+ while (is_vlan_dev(ret))
+ ret = vlan_dev_priv(ret)->real_dev;
+
+ return ret;
}
EXPORT_SYMBOL(vlan_dev_real_dev);
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index e14531f..264de88 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1529,6 +1529,8 @@
* in these cases, the skb is further handled by this function and
* returns 1, otherwise it returns 0 and the caller shall further
* process the skb.
+ *
+ * This call might reallocate skb data.
*/
int batadv_bla_tx(struct batadv_priv *bat_priv, struct sk_buff *skb,
unsigned short vid)
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index f105219..7614af3 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -508,6 +508,7 @@
return 0;
}
+/* this call might reallocate skb data */
static bool batadv_is_type_dhcprequest(struct sk_buff *skb, int header_len)
{
int ret = false;
@@ -568,6 +569,7 @@
return ret;
}
+/* this call might reallocate skb data */
bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len)
{
struct ethhdr *ethhdr;
@@ -619,6 +621,12 @@
if (!pskb_may_pull(skb, *header_len + sizeof(*udphdr)))
return false;
+
+ /* skb->data might have been reallocated by pskb_may_pull() */
+ ethhdr = (struct ethhdr *)skb->data;
+ if (ntohs(ethhdr->h_proto) == ETH_P_8021Q)
+ ethhdr = (struct ethhdr *)(skb->data + VLAN_HLEN);
+
udphdr = (struct udphdr *)(skb->data + *header_len);
*header_len += sizeof(*udphdr);
@@ -634,12 +642,14 @@
return true;
}
+/* this call might reallocate skb data */
bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
- struct sk_buff *skb, struct ethhdr *ethhdr)
+ struct sk_buff *skb)
{
struct batadv_neigh_node *neigh_curr = NULL, *neigh_old = NULL;
struct batadv_orig_node *orig_dst_node = NULL;
struct batadv_gw_node *curr_gw = NULL;
+ struct ethhdr *ethhdr;
bool ret, out_of_range = false;
unsigned int header_len = 0;
uint8_t curr_tq_avg;
@@ -648,6 +658,7 @@
if (!ret)
goto out;
+ ethhdr = (struct ethhdr *)skb->data;
orig_dst_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
ethhdr->h_dest);
if (!orig_dst_node)
diff --git a/net/batman-adv/gateway_client.h b/net/batman-adv/gateway_client.h
index 039902d..1037d75 100644
--- a/net/batman-adv/gateway_client.h
+++ b/net/batman-adv/gateway_client.h
@@ -34,7 +34,6 @@
void batadv_gw_node_purge(struct batadv_priv *bat_priv);
int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset);
bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len);
-bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
- struct sk_buff *skb, struct ethhdr *ethhdr);
+bool batadv_gw_out_of_range(struct batadv_priv *bat_priv, struct sk_buff *skb);
#endif /* _NET_BATMAN_ADV_GATEWAY_CLIENT_H_ */
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 700d0b4..0f04e1c 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -180,6 +180,9 @@
if (batadv_bla_tx(bat_priv, skb, vid))
goto dropped;
+ /* skb->data might have been reallocated by batadv_bla_tx() */
+ ethhdr = (struct ethhdr *)skb->data;
+
/* Register the client MAC in the transtable */
if (!is_multicast_ether_addr(ethhdr->h_source))
batadv_tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif);
@@ -220,6 +223,10 @@
default:
break;
}
+
+ /* reminder: ethhdr might have become unusable from here on
+ * (batadv_gw_is_dhcp_target() might have reallocated skb data)
+ */
}
/* ethernet packet should be broadcasted */
@@ -266,7 +273,7 @@
/* unicast packet */
} else {
if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_OFF) {
- ret = batadv_gw_out_of_range(bat_priv, skb, ethhdr);
+ ret = batadv_gw_out_of_range(bat_priv, skb);
if (ret)
goto dropped;
}
diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
index dc8b5d4..857e1b8 100644
--- a/net/batman-adv/unicast.c
+++ b/net/batman-adv/unicast.c
@@ -326,7 +326,9 @@
* @skb: the skb containing the payload to encapsulate
* @orig_node: the destination node
*
- * Returns false if the payload could not be encapsulated or true otherwise
+ * Returns false if the payload could not be encapsulated or true otherwise.
+ *
+ * This call might reallocate skb data.
*/
static bool batadv_unicast_prepare_skb(struct sk_buff *skb,
struct batadv_orig_node *orig_node)
@@ -343,7 +345,9 @@
* @orig_node: the destination node
* @packet_subtype: the batman 4addr packet subtype to use
*
- * Returns false if the payload could not be encapsulated or true otherwise
+ * Returns false if the payload could not be encapsulated or true otherwise.
+ *
+ * This call might reallocate skb data.
*/
bool batadv_unicast_4addr_prepare_skb(struct batadv_priv *bat_priv,
struct sk_buff *skb,
@@ -401,7 +405,7 @@
struct batadv_neigh_node *neigh_node;
int data_len = skb->len;
int ret = NET_RX_DROP;
- unsigned int dev_mtu;
+ unsigned int dev_mtu, header_len;
/* get routing information */
if (is_multicast_ether_addr(ethhdr->h_dest)) {
@@ -428,11 +432,17 @@
switch (packet_type) {
case BATADV_UNICAST:
- batadv_unicast_prepare_skb(skb, orig_node);
+ if (!batadv_unicast_prepare_skb(skb, orig_node))
+ goto out;
+
+ header_len = sizeof(struct batadv_unicast_packet);
break;
case BATADV_UNICAST_4ADDR:
- batadv_unicast_4addr_prepare_skb(bat_priv, skb, orig_node,
- packet_subtype);
+ if (!batadv_unicast_4addr_prepare_skb(bat_priv, skb, orig_node,
+ packet_subtype))
+ goto out;
+
+ header_len = sizeof(struct batadv_unicast_4addr_packet);
break;
default:
/* this function supports UNICAST and UNICAST_4ADDR only. It
@@ -441,6 +451,7 @@
goto out;
}
+ ethhdr = (struct ethhdr *)(skb->data + header_len);
unicast_packet = (struct batadv_unicast_packet *)skb->data;
/* inform the destination node that we are still missing a correct route
diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
index 60aca91..ffd5874 100644
--- a/net/bridge/br_fdb.c
+++ b/net/bridge/br_fdb.c
@@ -161,7 +161,7 @@
if (!pv)
return;
- for_each_set_bit_from(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) {
+ for_each_set_bit_from(vid, pv->vlan_bitmap, VLAN_N_VID) {
f = __br_fdb_get(br, br->dev->dev_addr, vid);
if (f && f->is_local && !f->dst)
fdb_delete(br, f);
@@ -730,7 +730,7 @@
/* VID was specified, so use it. */
err = __br_fdb_add(ndm, p, addr, nlh_flags, vid);
} else {
- if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN)) {
+ if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) {
err = __br_fdb_add(ndm, p, addr, nlh_flags, 0);
goto out;
}
@@ -739,7 +739,7 @@
* specify a VLAN. To be nice, add/update entry for every
* vlan on this port.
*/
- for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) {
+ for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) {
err = __br_fdb_add(ndm, p, addr, nlh_flags, vid);
if (err)
goto out;
@@ -817,7 +817,7 @@
err = __br_fdb_delete(p, addr, vid);
} else {
- if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN)) {
+ if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) {
err = __br_fdb_delete(p, addr, 0);
goto out;
}
@@ -827,7 +827,7 @@
* vlan on this port.
*/
err = -ENOENT;
- for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) {
+ for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) {
err &= __br_fdb_delete(p, addr, vid);
}
}
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 61c5e81..08e576a 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -1195,7 +1195,7 @@
max_delay = msecs_to_jiffies(ntohs(mld->mld_maxdelay));
if (max_delay)
group = &mld->mld_mca;
- } else if (skb->len >= sizeof(*mld2q)) {
+ } else {
if (!pskb_may_pull(skb, sizeof(*mld2q))) {
err = -EINVAL;
goto out;
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 1fc30ab..b9259ef 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -132,7 +132,7 @@
else
pv = br_get_vlan_info(br);
- if (!pv || bitmap_empty(pv->vlan_bitmap, BR_VLAN_BITMAP_LEN))
+ if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID))
goto done;
af = nla_nest_start(skb, IFLA_AF_SPEC);
@@ -140,7 +140,7 @@
goto nla_put_failure;
pvid = br_get_pvid(pv);
- for_each_set_bit(vid, pv->vlan_bitmap, BR_VLAN_BITMAP_LEN) {
+ for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) {
vinfo.vid = vid;
vinfo.flags = 0;
if (vid == pvid)
diff --git a/net/bridge/br_sysfs_br.c b/net/bridge/br_sysfs_br.c
index 394bb96..3b9637f 100644
--- a/net/bridge/br_sysfs_br.c
+++ b/net/bridge/br_sysfs_br.c
@@ -1,5 +1,5 @@
/*
- * Sysfs attributes of bridge ports
+ * Sysfs attributes of bridge
* Linux ethernet bridge
*
* Authors:
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index bd58b45..9a9ffe7 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -108,7 +108,7 @@
clear_bit(vid, v->vlan_bitmap);
v->num_vlans--;
- if (bitmap_empty(v->vlan_bitmap, BR_VLAN_BITMAP_LEN)) {
+ if (bitmap_empty(v->vlan_bitmap, VLAN_N_VID)) {
if (v->port_idx)
rcu_assign_pointer(v->parent.port->vlan_info, NULL);
else
@@ -122,7 +122,7 @@
{
smp_wmb();
v->pvid = 0;
- bitmap_zero(v->vlan_bitmap, BR_VLAN_BITMAP_LEN);
+ bitmap_zero(v->vlan_bitmap, VLAN_N_VID);
if (v->port_idx)
rcu_assign_pointer(v->parent.port->vlan_info, NULL);
else
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 00ee068..b84a1b1 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -65,6 +65,7 @@
nhoff += sizeof(struct ipv6hdr);
break;
}
+ case __constant_htons(ETH_P_8021AD):
case __constant_htons(ETH_P_8021Q): {
const struct vlan_hdr *vlan;
struct vlan_hdr _vlan;
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 9232c68..60533db 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -1441,16 +1441,18 @@
atomic_set(&p->refcnt, 1);
p->reachable_time =
neigh_rand_reach_time(p->base_reachable_time);
-
- if (ops->ndo_neigh_setup && ops->ndo_neigh_setup(dev, p)) {
- kfree(p);
- return NULL;
- }
-
dev_hold(dev);
p->dev = dev;
write_pnet(&p->net, hold_net(net));
p->sysctl_table = NULL;
+
+ if (ops->ndo_neigh_setup && ops->ndo_neigh_setup(dev, p)) {
+ release_net(net);
+ dev_put(dev);
+ kfree(p);
+ return NULL;
+ }
+
write_lock_bh(&tbl->lock);
p->next = tbl->parms.next;
tbl->parms.next = p;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 3de7408..ca198c1 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -2156,7 +2156,7 @@
/* If aging addresses are supported device will need to
* implement its own handler for this.
*/
- if (ndm->ndm_state & NUD_PERMANENT) {
+ if (!(ndm->ndm_state & NUD_PERMANENT)) {
pr_info("%s: FDB only supports static addresses\n", dev->name);
return -EINVAL;
}
@@ -2384,7 +2384,7 @@
struct nlattr *extfilt;
u32 filter_mask = 0;
- extfilt = nlmsg_find_attr(cb->nlh, sizeof(struct rtgenmsg),
+ extfilt = nlmsg_find_attr(cb->nlh, sizeof(struct ifinfomsg),
IFLA_EXT_MASK);
if (extfilt)
filter_mask = nla_get_u32(extfilt);
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index ab3d814..109ee89 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -477,7 +477,7 @@
}
return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
- net_adj) & ~(align - 1)) + (net_adj - 2);
+ net_adj) & ~(align - 1)) + net_adj - 2;
}
static void esp4_err(struct sk_buff *skb, u32 info)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 108a1e9c..3df6d3e 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -71,7 +71,6 @@
#include <linux/init.h>
#include <linux/list.h>
#include <linux/slab.h>
-#include <linux/prefetch.h>
#include <linux/export.h>
#include <net/net_namespace.h>
#include <net/ip.h>
@@ -1761,10 +1760,8 @@
if (!c)
continue;
- if (IS_LEAF(c)) {
- prefetch(rcu_dereference_rtnl(p->child[idx]));
+ if (IS_LEAF(c))
return (struct leaf *) c;
- }
/* Rescan start scanning in new node */
p = (struct tnode *) c;
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 1f6eab6..8d6939e 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -383,7 +383,7 @@
if (daddr)
memcpy(&iph->daddr, daddr, 4);
if (iph->daddr)
- return t->hlen;
+ return t->hlen + sizeof(*iph);
return -(t->hlen + sizeof(*iph));
}
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index 7167b08..850525b 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -76,9 +76,7 @@
iph->daddr = dst;
iph->saddr = src;
iph->ttl = ttl;
- tunnel_ip_select_ident(skb,
- (const struct iphdr *)skb_inner_network_header(skb),
- &rt->dst);
+ __ip_select_ident(iph, &rt->dst, (skb_shinfo(skb)->gso_segs ?: 1) - 1);
err = ip_local_out(skb);
if (unlikely(net_xmit_eval(err)))
diff --git a/net/ipv4/proc.c b/net/ipv4/proc.c
index 6577a11..463bd12 100644
--- a/net/ipv4/proc.c
+++ b/net/ipv4/proc.c
@@ -273,7 +273,7 @@
SNMP_MIB_ITEM("TCPFastOpenListenOverflow", LINUX_MIB_TCPFASTOPENLISTENOVERFLOW),
SNMP_MIB_ITEM("TCPFastOpenCookieReqd", LINUX_MIB_TCPFASTOPENCOOKIEREQD),
SNMP_MIB_ITEM("TCPSpuriousRtxHostQueues", LINUX_MIB_TCPSPURIOUS_RTX_HOSTQUEUES),
- SNMP_MIB_ITEM("LowLatencyRxPackets", LINUX_MIB_LOWLATENCYRXPACKETS),
+ SNMP_MIB_ITEM("BusyPollRxPackets", LINUX_MIB_BUSYPOLLRXPACKETS),
SNMP_MIB_SENTINEL
};
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 5423223..b2f6c74 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1121,6 +1121,13 @@
goto wait_for_memory;
/*
+ * All packets are restored as if they have
+ * already been sent.
+ */
+ if (tp->repair)
+ TCP_SKB_CB(skb)->when = tcp_time_stamp;
+
+ /*
* Check whether we can use HW checksum.
*/
if (sk->sk_route_caps & NETIF_F_ALL_CSUM)
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index a9077f4..b6ae92a 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -206,8 +206,8 @@
*/
static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
{
- u64 offs;
- u32 delta, t, bic_target, max_cnt;
+ u32 delta, bic_target, max_cnt;
+ u64 offs, t;
ca->ack_cnt++; /* count the number of ACKs */
@@ -250,9 +250,11 @@
* if the cwnd < 1 million packets !!!
*/
+ t = (s32)(tcp_time_stamp - ca->epoch_start);
+ t += msecs_to_jiffies(ca->delay_min >> 3);
/* change the unit from HZ to bictcp_HZ */
- t = ((tcp_time_stamp + msecs_to_jiffies(ca->delay_min>>3)
- - ca->epoch_start) << BICTCP_HZ) / HZ;
+ t <<= BICTCP_HZ;
+ do_div(t, HZ);
if (t < ca->bic_K) /* t - K */
offs = ca->bic_K - t;
@@ -414,7 +416,7 @@
return;
/* Discard delay samples right after fast recovery */
- if ((s32)(tcp_time_stamp - ca->epoch_start) < HZ)
+ if (ca->epoch_start && (s32)(tcp_time_stamp - ca->epoch_start) < HZ)
return;
delay = (rtt_us << 3) / USEC_PER_MSEC;
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index da4241c..498ea99 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1126,12 +1126,10 @@
if (ifp->flags & IFA_F_OPTIMISTIC)
addr_flags |= IFA_F_OPTIMISTIC;
- ift = !max_addresses ||
- ipv6_count_addresses(idev) < max_addresses ?
- ipv6_add_addr(idev, &addr, NULL, tmp_plen,
- ipv6_addr_scope(&addr), addr_flags,
- tmp_valid_lft, tmp_prefered_lft) : NULL;
- if (IS_ERR_OR_NULL(ift)) {
+ ift = ipv6_add_addr(idev, &addr, NULL, tmp_plen,
+ ipv6_addr_scope(&addr), addr_flags,
+ tmp_valid_lft, tmp_prefered_lft);
+ if (IS_ERR(ift)) {
in6_ifa_put(ifp);
in6_dev_put(idev);
pr_info("%s: retry temporary address regeneration\n", __func__);
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 40ffd72..aeac0dc 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -425,7 +425,7 @@
net_adj = 0;
return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
- net_adj) & ~(align - 1)) + (net_adj - 2);
+ net_adj) & ~(align - 1)) + net_adj - 2;
}
static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index bff3d82..c4ff5bb 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -993,14 +993,22 @@
if (ipv6_prefix_equal(&key->addr, args->addr, key->plen)) {
#ifdef CONFIG_IPV6_SUBTREES
- if (fn->subtree)
- fn = fib6_lookup_1(fn->subtree, args + 1);
+ if (fn->subtree) {
+ struct fib6_node *sfn;
+ sfn = fib6_lookup_1(fn->subtree,
+ args + 1);
+ if (!sfn)
+ goto backtrack;
+ fn = sfn;
+ }
#endif
- if (!fn || fn->fn_flags & RTN_RTINFO)
+ if (fn->fn_flags & RTN_RTINFO)
return fn;
}
}
-
+#ifdef CONFIG_IPV6_SUBTREES
+backtrack:
+#endif
if (fn->fn_flags & RTN_ROOT)
break;
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 79aa965..04d31c2 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1369,8 +1369,10 @@
if (!ndisc_parse_options(msg->opt, ndoptlen, &ndopts))
return;
- if (!ndopts.nd_opts_rh)
+ if (!ndopts.nd_opts_rh) {
+ ip6_redirect_no_header(skb, dev_net(skb->dev), 0, 0);
return;
+ }
hdr = (u8 *)ndopts.nd_opts_rh;
hdr += 8;
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 790d9f4..1aeb473 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -490,6 +490,7 @@
ipv6_hdr(head)->payload_len = htons(payload_len);
ipv6_change_dsfield(ipv6_hdr(head), 0xff, ecn);
IP6CB(head)->nhoff = nhoff;
+ IP6CB(head)->flags |= IP6SKB_FRAGMENTED;
/* Yes, and fold redundant checksum back. 8) */
if (head->ip_summed == CHECKSUM_COMPLETE)
@@ -524,6 +525,9 @@
struct net *net = dev_net(skb_dst(skb)->dev);
int evicted;
+ if (IP6CB(skb)->flags & IP6SKB_FRAGMENTED)
+ goto fail_hdr;
+
IP6_INC_STATS_BH(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMREQDS);
/* Jumbo payload inhibits frag. header */
@@ -544,6 +548,7 @@
ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMOKS);
IP6CB(skb)->nhoff = (u8 *)fhdr - skb_network_header(skb);
+ IP6CB(skb)->flags |= IP6SKB_FRAGMENTED;
return 1;
}
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index b70f8979..8d9a93e 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1178,6 +1178,27 @@
}
EXPORT_SYMBOL_GPL(ip6_redirect);
+void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif,
+ u32 mark)
+{
+ const struct ipv6hdr *iph = ipv6_hdr(skb);
+ const struct rd_msg *msg = (struct rd_msg *)icmp6_hdr(skb);
+ struct dst_entry *dst;
+ struct flowi6 fl6;
+
+ memset(&fl6, 0, sizeof(fl6));
+ fl6.flowi6_oif = oif;
+ fl6.flowi6_mark = mark;
+ fl6.flowi6_flags = 0;
+ fl6.daddr = msg->dest;
+ fl6.saddr = iph->daddr;
+
+ dst = ip6_route_output(net, NULL, &fl6);
+ if (!dst->error)
+ rt6_do_redirect(dst, NULL, skb);
+ dst_release(dst);
+}
+
void ip6_sk_redirect(struct sk_buff *skb, struct sock *sk)
{
ip6_redirect(skb, sock_net(sk), sk->sk_bound_dev_if, sk->sk_mark);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index ae31968..cc9e02d 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -31,10 +31,12 @@
#include "led.h"
#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
+#define IEEE80211_AUTH_TIMEOUT_LONG (HZ / 2)
#define IEEE80211_AUTH_TIMEOUT_SHORT (HZ / 10)
#define IEEE80211_AUTH_MAX_TRIES 3
#define IEEE80211_AUTH_WAIT_ASSOC (HZ * 5)
#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
+#define IEEE80211_ASSOC_TIMEOUT_LONG (HZ / 2)
#define IEEE80211_ASSOC_TIMEOUT_SHORT (HZ / 10)
#define IEEE80211_ASSOC_MAX_TRIES 3
@@ -209,8 +211,9 @@
struct ieee80211_channel *channel,
const struct ieee80211_ht_operation *ht_oper,
const struct ieee80211_vht_operation *vht_oper,
- struct cfg80211_chan_def *chandef, bool verbose)
+ struct cfg80211_chan_def *chandef, bool tracking)
{
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct cfg80211_chan_def vht_chandef;
u32 ht_cfreq, ret;
@@ -229,7 +232,7 @@
ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan,
channel->band);
/* check that channel matches the right operating channel */
- if (channel->center_freq != ht_cfreq) {
+ if (!tracking && channel->center_freq != ht_cfreq) {
/*
* It's possible that some APs are confused here;
* Netgear WNDR3700 sometimes reports 4 higher than
@@ -237,11 +240,10 @@
* since we look at probe response/beacon data here
* it should be OK.
*/
- if (verbose)
- sdata_info(sdata,
- "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n",
- channel->center_freq, ht_cfreq,
- ht_oper->primary_chan, channel->band);
+ sdata_info(sdata,
+ "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n",
+ channel->center_freq, ht_cfreq,
+ ht_oper->primary_chan, channel->band);
ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
goto out;
}
@@ -295,7 +297,7 @@
channel->band);
break;
default:
- if (verbose)
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
sdata_info(sdata,
"AP VHT operation IE has invalid channel width (%d), disable VHT\n",
vht_oper->chan_width);
@@ -304,7 +306,7 @@
}
if (!cfg80211_chandef_valid(&vht_chandef)) {
- if (verbose)
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
sdata_info(sdata,
"AP VHT information is invalid, disable VHT\n");
ret = IEEE80211_STA_DISABLE_VHT;
@@ -317,7 +319,7 @@
}
if (!cfg80211_chandef_compatible(chandef, &vht_chandef)) {
- if (verbose)
+ if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))
sdata_info(sdata,
"AP VHT information doesn't match HT, disable VHT\n");
ret = IEEE80211_STA_DISABLE_VHT;
@@ -333,18 +335,27 @@
if (ret & IEEE80211_STA_DISABLE_VHT)
vht_chandef = *chandef;
+ /*
+ * Ignore the DISABLED flag when we're already connected and only
+ * tracking the APs beacon for bandwidth changes - otherwise we
+ * might get disconnected here if we connect to an AP, update our
+ * regulatory information based on the AP's country IE and the
+ * information we have is wrong/outdated and disables the channel
+ * that we're actually using for the connection to the AP.
+ */
while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef,
- IEEE80211_CHAN_DISABLED)) {
+ tracking ? 0 :
+ IEEE80211_CHAN_DISABLED)) {
if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) {
ret = IEEE80211_STA_DISABLE_HT |
IEEE80211_STA_DISABLE_VHT;
- goto out;
+ break;
}
ret |= chandef_downgrade(chandef);
}
- if (chandef->width != vht_chandef.width && verbose)
+ if (chandef->width != vht_chandef.width && !tracking)
sdata_info(sdata,
"capabilities/regulatory prevented using AP HT/VHT configuration, downgraded\n");
@@ -384,7 +395,7 @@
/* calculate new channel (type) based on HT/VHT operation IEs */
flags = ieee80211_determine_chantype(sdata, sband, chan, ht_oper,
- vht_oper, &chandef, false);
+ vht_oper, &chandef, true);
/*
* Downgrade the new channel if we associated with restricted
@@ -3394,10 +3405,13 @@
if (tx_flags == 0) {
auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT;
- ifmgd->auth_data->timeout_started = true;
+ auth_data->timeout_started = true;
run_again(sdata, auth_data->timeout);
} else {
- auth_data->timeout_started = false;
+ auth_data->timeout =
+ round_jiffies_up(jiffies + IEEE80211_AUTH_TIMEOUT_LONG);
+ auth_data->timeout_started = true;
+ run_again(sdata, auth_data->timeout);
}
return 0;
@@ -3434,7 +3448,11 @@
assoc_data->timeout_started = true;
run_again(sdata, assoc_data->timeout);
} else {
- assoc_data->timeout_started = false;
+ assoc_data->timeout =
+ round_jiffies_up(jiffies +
+ IEEE80211_ASSOC_TIMEOUT_LONG);
+ assoc_data->timeout_started = true;
+ run_again(sdata, assoc_data->timeout);
}
return 0;
@@ -3829,7 +3847,7 @@
ifmgd->flags |= ieee80211_determine_chantype(sdata, sband,
cbss->channel,
ht_oper, vht_oper,
- &chandef, true);
+ &chandef, false);
sdata->needed_rx_chains = min(ieee80211_ht_vht_rx_chains(sdata, cbss),
local->rx_chains);
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c
index 7dcc376..2f80107 100644
--- a/net/netfilter/nf_conntrack_proto_tcp.c
+++ b/net/netfilter/nf_conntrack_proto_tcp.c
@@ -526,7 +526,7 @@
const struct nf_conntrack_tuple *tuple = &ct->tuplehash[dir].tuple;
__u32 seq, ack, sack, end, win, swin;
s16 receiver_offset;
- bool res;
+ bool res, in_recv_win;
/*
* Get the required data from the packet.
@@ -649,14 +649,18 @@
receiver->td_end, receiver->td_maxend, receiver->td_maxwin,
receiver->td_scale);
+ /* Is the ending sequence in the receive window (if available)? */
+ in_recv_win = !receiver->td_maxwin ||
+ after(end, sender->td_end - receiver->td_maxwin - 1);
+
pr_debug("tcp_in_window: I=%i II=%i III=%i IV=%i\n",
before(seq, sender->td_maxend + 1),
- after(end, sender->td_end - receiver->td_maxwin - 1),
+ (in_recv_win ? 1 : 0),
before(sack, receiver->td_end + 1),
after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1));
if (before(seq, sender->td_maxend + 1) &&
- after(end, sender->td_end - receiver->td_maxwin - 1) &&
+ in_recv_win &&
before(sack, receiver->td_end + 1) &&
after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1)) {
/*
@@ -725,7 +729,7 @@
nf_log_packet(net, pf, 0, skb, NULL, NULL, NULL,
"nf_ct_tcp: %s ",
before(seq, sender->td_maxend + 1) ?
- after(end, sender->td_end - receiver->td_maxwin - 1) ?
+ in_recv_win ?
before(sack, receiver->td_end + 1) ?
after(sack, receiver->td_end - MAXACKWINDOW(sender) - 1) ? "BUG"
: "ACK is under the lower bound (possible overly delayed ACK)"
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 962e979..d92cc31 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -419,6 +419,7 @@
nfmsg->version = NFNETLINK_V0;
nfmsg->res_id = htons(inst->group_num);
+ memset(&pmsg, 0, sizeof(pmsg));
pmsg.hw_protocol = skb->protocol;
pmsg.hook = hooknum;
@@ -498,7 +499,10 @@
if (indev && skb->dev &&
skb->mac_header != skb->network_header) {
struct nfulnl_msg_packet_hw phw;
- int len = dev_parse_header(skb, phw.hw_addr);
+ int len;
+
+ memset(&phw, 0, sizeof(phw));
+ len = dev_parse_header(skb, phw.hw_addr);
if (len > 0) {
phw.hw_addrlen = htons(len);
if (nla_put(inst->skb, NFULA_HWADDR, sizeof(phw), &phw))
diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index 971ea14..8a703c3 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -463,7 +463,10 @@
if (indev && entskb->dev &&
entskb->mac_header != entskb->network_header) {
struct nfqnl_msg_packet_hw phw;
- int len = dev_parse_header(entskb, phw.hw_addr);
+ int len;
+
+ memset(&phw, 0, sizeof(phw));
+ len = dev_parse_header(entskb, phw.hw_addr);
if (len) {
phw.hw_addrlen = htons(len);
if (nla_put(skb, NFQA_HWADDR, sizeof(phw), &phw))
diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index 7011c71..6113cc7 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -52,7 +52,8 @@
{
const struct xt_tcpmss_info *info = par->targinfo;
struct tcphdr *tcph;
- unsigned int tcplen, i;
+ int len, tcp_hdrlen;
+ unsigned int i;
__be16 oldval;
u16 newmss;
u8 *opt;
@@ -64,11 +65,14 @@
if (!skb_make_writable(skb, skb->len))
return -1;
- tcplen = skb->len - tcphoff;
- tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff);
+ len = skb->len - tcphoff;
+ if (len < (int)sizeof(struct tcphdr))
+ return -1;
- /* Header cannot be larger than the packet */
- if (tcplen < tcph->doff*4)
+ tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff);
+ tcp_hdrlen = tcph->doff * 4;
+
+ if (len < tcp_hdrlen)
return -1;
if (info->mss == XT_TCPMSS_CLAMP_PMTU) {
@@ -87,9 +91,8 @@
newmss = info->mss;
opt = (u_int8_t *)tcph;
- for (i = sizeof(struct tcphdr); i < tcph->doff*4; i += optlen(opt, i)) {
- if (opt[i] == TCPOPT_MSS && tcph->doff*4 - i >= TCPOLEN_MSS &&
- opt[i+1] == TCPOLEN_MSS) {
+ for (i = sizeof(struct tcphdr); i <= tcp_hdrlen - TCPOLEN_MSS; i += optlen(opt, i)) {
+ if (opt[i] == TCPOPT_MSS && opt[i+1] == TCPOLEN_MSS) {
u_int16_t oldmss;
oldmss = (opt[i+2] << 8) | opt[i+3];
@@ -112,9 +115,10 @@
}
/* There is data after the header so the option can't be added
- without moving it, and doing so may make the SYN packet
- itself too large. Accept the packet unmodified instead. */
- if (tcplen > tcph->doff*4)
+ * without moving it, and doing so may make the SYN packet
+ * itself too large. Accept the packet unmodified instead.
+ */
+ if (len > tcp_hdrlen)
return 0;
/*
@@ -143,10 +147,10 @@
newmss = min(newmss, (u16)1220);
opt = (u_int8_t *)tcph + sizeof(struct tcphdr);
- memmove(opt + TCPOLEN_MSS, opt, tcplen - sizeof(struct tcphdr));
+ memmove(opt + TCPOLEN_MSS, opt, len - sizeof(struct tcphdr));
inet_proto_csum_replace2(&tcph->check, skb,
- htons(tcplen), htons(tcplen + TCPOLEN_MSS), 1);
+ htons(len), htons(len + TCPOLEN_MSS), 1);
opt[0] = TCPOPT_MSS;
opt[1] = TCPOLEN_MSS;
opt[2] = (newmss & 0xff00) >> 8;
diff --git a/net/netfilter/xt_TCPOPTSTRIP.c b/net/netfilter/xt_TCPOPTSTRIP.c
index b68fa19..625fa1d 100644
--- a/net/netfilter/xt_TCPOPTSTRIP.c
+++ b/net/netfilter/xt_TCPOPTSTRIP.c
@@ -38,7 +38,7 @@
struct tcphdr *tcph;
u_int16_t n, o;
u_int8_t *opt;
- int len;
+ int len, tcp_hdrlen;
/* This is a fragment, no TCP header is available */
if (par->fragoff != 0)
@@ -52,7 +52,9 @@
return NF_DROP;
tcph = (struct tcphdr *)(skb_network_header(skb) + tcphoff);
- if (tcph->doff * 4 > len)
+ tcp_hdrlen = tcph->doff * 4;
+
+ if (len < tcp_hdrlen)
return NF_DROP;
opt = (u_int8_t *)tcph;
@@ -61,10 +63,10 @@
* Walk through all TCP options - if we find some option to remove,
* set all octets to %TCPOPT_NOP and adjust checksum.
*/
- for (i = sizeof(struct tcphdr); i < tcp_hdrlen(skb); i += optl) {
+ for (i = sizeof(struct tcphdr); i < tcp_hdrlen - 1; i += optl) {
optl = optlen(opt, i);
- if (i + optl > tcp_hdrlen(skb))
+ if (i + optl > tcp_hdrlen)
break;
if (!tcpoptstrip_test_bit(info->strip_bmap, opt[i]))
diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 22c5f39..ab101f7 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -535,6 +535,7 @@
{
struct sw_flow_actions *acts = rcu_dereference(OVS_CB(skb)->flow->sf_acts);
+ OVS_CB(skb)->tun_key = NULL;
return do_execute_actions(dp, skb, acts->actions,
acts->actions_len, false);
}
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index f7e3a0d..f2ed760 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -2076,9 +2076,6 @@
ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
return 0;
- rtnl_unlock();
- return 0;
-
exit_free:
kfree_skb(reply);
exit_unlock:
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 5c519b1..1aa84dc 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -240,7 +240,7 @@
struct flex_array *buckets;
int i, err;
- buckets = flex_array_alloc(sizeof(struct hlist_head *),
+ buckets = flex_array_alloc(sizeof(struct hlist_head),
n_buckets, GFP_KERNEL);
if (!buckets)
return NULL;
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 4b66c75..75c8bbf 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -3259,9 +3259,11 @@
if (po->tp_version == TPACKET_V3) {
lv = sizeof(struct tpacket_stats_v3);
+ st.stats3.tp_packets += st.stats3.tp_drops;
data = &st.stats3;
} else {
lv = sizeof(struct tpacket_stats);
+ st.stats1.tp_packets += st.stats1.tp_drops;
data = &st.stats1;
}
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 281c1bd..51b968d 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -285,6 +285,45 @@
return q;
}
+/* The linklayer setting were not transferred from iproute2, in older
+ * versions, and the rate tables lookup systems have been dropped in
+ * the kernel. To keep backward compatible with older iproute2 tc
+ * utils, we detect the linklayer setting by detecting if the rate
+ * table were modified.
+ *
+ * For linklayer ATM table entries, the rate table will be aligned to
+ * 48 bytes, thus some table entries will contain the same value. The
+ * mpu (min packet unit) is also encoded into the old rate table, thus
+ * starting from the mpu, we find low and high table entries for
+ * mapping this cell. If these entries contain the same value, when
+ * the rate tables have been modified for linklayer ATM.
+ *
+ * This is done by rounding mpu to the nearest 48 bytes cell/entry,
+ * and then roundup to the next cell, calc the table entry one below,
+ * and compare.
+ */
+static __u8 __detect_linklayer(struct tc_ratespec *r, __u32 *rtab)
+{
+ int low = roundup(r->mpu, 48);
+ int high = roundup(low+1, 48);
+ int cell_low = low >> r->cell_log;
+ int cell_high = (high >> r->cell_log) - 1;
+
+ /* rtab is too inaccurate at rates > 100Mbit/s */
+ if ((r->rate > (100000000/8)) || (rtab[0] == 0)) {
+ pr_debug("TC linklayer: Giving up ATM detection\n");
+ return TC_LINKLAYER_ETHERNET;
+ }
+
+ if ((cell_high > cell_low) && (cell_high < 256)
+ && (rtab[cell_low] == rtab[cell_high])) {
+ pr_debug("TC linklayer: Detected ATM, low(%d)=high(%d)=%u\n",
+ cell_low, cell_high, rtab[cell_high]);
+ return TC_LINKLAYER_ATM;
+ }
+ return TC_LINKLAYER_ETHERNET;
+}
+
static struct qdisc_rate_table *qdisc_rtab_list;
struct qdisc_rate_table *qdisc_get_rtab(struct tc_ratespec *r, struct nlattr *tab)
@@ -308,6 +347,8 @@
rtab->rate = *r;
rtab->refcnt = 1;
memcpy(rtab->data, nla_data(tab), 1024);
+ if (r->linklayer == TC_LINKLAYER_UNAWARE)
+ r->linklayer = __detect_linklayer(r, rtab->data);
rtab->next = qdisc_rtab_list;
qdisc_rtab_list = rtab;
}
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 4626cef..48be3d5 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -25,6 +25,7 @@
#include <linux/rcupdate.h>
#include <linux/list.h>
#include <linux/slab.h>
+#include <linux/if_vlan.h>
#include <net/sch_generic.h>
#include <net/pkt_sched.h>
#include <net/dst.h>
@@ -207,15 +208,19 @@
unsigned long dev_trans_start(struct net_device *dev)
{
- unsigned long val, res = dev->trans_start;
+ unsigned long val, res;
unsigned int i;
+ if (is_vlan_dev(dev))
+ dev = vlan_dev_real_dev(dev);
+ res = dev->trans_start;
for (i = 0; i < dev->num_tx_queues; i++) {
val = netdev_get_tx_queue(dev, i)->trans_start;
if (val && time_after(val, res))
res = val;
}
dev->trans_start = res;
+
return res;
}
EXPORT_SYMBOL(dev_trans_start);
@@ -904,6 +909,7 @@
memset(r, 0, sizeof(*r));
r->overhead = conf->overhead;
r->rate_bytes_ps = conf->rate;
+ r->linklayer = (conf->linklayer & TC_LINKLAYER_MASK);
r->mult = 1;
/*
* The deal here is to replace a divide by a reciprocal one
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 45e7515..c2178b1 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1329,6 +1329,7 @@
struct htb_sched *q = qdisc_priv(sch);
struct htb_class *cl = (struct htb_class *)*arg, *parent;
struct nlattr *opt = tca[TCA_OPTIONS];
+ struct qdisc_rate_table *rtab = NULL, *ctab = NULL;
struct nlattr *tb[TCA_HTB_MAX + 1];
struct tc_htb_opt *hopt;
@@ -1350,6 +1351,18 @@
if (!hopt->rate.rate || !hopt->ceil.rate)
goto failure;
+ /* Keeping backward compatible with rate_table based iproute2 tc */
+ if (hopt->rate.linklayer == TC_LINKLAYER_UNAWARE) {
+ rtab = qdisc_get_rtab(&hopt->rate, tb[TCA_HTB_RTAB]);
+ if (rtab)
+ qdisc_put_rtab(rtab);
+ }
+ if (hopt->ceil.linklayer == TC_LINKLAYER_UNAWARE) {
+ ctab = qdisc_get_rtab(&hopt->ceil, tb[TCA_HTB_CTAB]);
+ if (ctab)
+ qdisc_put_rtab(ctab);
+ }
+
if (!cl) { /* new class */
struct Qdisc *new_q;
int prio;
diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index bce5b79..ab67efc 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -846,12 +846,12 @@
else
spc_state = SCTP_ADDR_AVAILABLE;
/* Don't inform ULP about transition from PF to
- * active state and set cwnd to 1, see SCTP
+ * active state and set cwnd to 1 MTU, see SCTP
* Quick failover draft section 5.1, point 5
*/
if (transport->state == SCTP_PF) {
ulp_notify = false;
- transport->cwnd = 1;
+ transport->cwnd = asoc->pathmtu;
}
transport->state = SCTP_ACTIVE;
break;
diff --git a/net/sctp/transport.c b/net/sctp/transport.c
index bdbbc3f..8fdd160 100644
--- a/net/sctp/transport.c
+++ b/net/sctp/transport.c
@@ -181,12 +181,12 @@
return;
}
- call_rcu(&transport->rcu, sctp_transport_destroy_rcu);
-
sctp_packet_free(&transport->packet);
if (transport->asoc)
sctp_association_put(transport->asoc);
+
+ call_rcu(&transport->rcu, sctp_transport_destroy_rcu);
}
/* Start T3_rtx timer if it is not already running and update the heartbeat
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index cb29ef7..609c30c 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -460,6 +460,7 @@
{
struct tipc_link *l_ptr;
struct tipc_link *temp_l_ptr;
+ struct tipc_link_req *temp_req;
pr_info("Disabling bearer <%s>\n", b_ptr->name);
spin_lock_bh(&b_ptr->lock);
@@ -468,9 +469,13 @@
list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
tipc_link_delete(l_ptr);
}
- if (b_ptr->link_req)
- tipc_disc_delete(b_ptr->link_req);
+ temp_req = b_ptr->link_req;
+ b_ptr->link_req = NULL;
spin_unlock_bh(&b_ptr->lock);
+
+ if (temp_req)
+ tipc_disc_delete(temp_req);
+
memset(b_ptr, 0, sizeof(struct tipc_bearer));
}
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 593071d..4d93346 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -347,7 +347,7 @@
for (i = 0; i < ARRAY_SIZE(vsock_connected_table); i++) {
struct vsock_sock *vsk;
list_for_each_entry(vsk, &vsock_connected_table[i],
- connected_table);
+ connected_table)
fn(sk_vsock(vsk));
}
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 4f9f216..a8c29fa 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -765,6 +765,7 @@
cfg80211_leave_mesh(rdev, dev);
break;
case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_P2P_GO:
cfg80211_stop_ap(rdev, dev);
break;
default:
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 25d217d9..5f6e982 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -441,10 +441,12 @@
goto out_unlock;
}
*rdev = wiphy_to_dev((*wdev)->wiphy);
- cb->args[0] = (*rdev)->wiphy_idx;
+ /* 0 is the first index - add 1 to parse only once */
+ cb->args[0] = (*rdev)->wiphy_idx + 1;
cb->args[1] = (*wdev)->identifier;
} else {
- struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0]);
+ /* subtract the 1 again here */
+ struct wiphy *wiphy = wiphy_idx_to_wiphy(cb->args[0] - 1);
struct wireless_dev *tmp;
if (!wiphy) {
@@ -2620,8 +2622,8 @@
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_NEW_KEY);
- if (IS_ERR(hdr))
- return PTR_ERR(hdr);
+ if (!hdr)
+ return -ENOBUFS;
cookie.msg = msg;
cookie.idx = key_idx;
@@ -6505,6 +6507,9 @@
NL80211_CMD_TESTMODE);
struct nlattr *tmdata;
+ if (!hdr)
+ break;
+
if (nla_put_u32(skb, NL80211_ATTR_WIPHY, phy_idx)) {
genlmsg_cancel(skb, hdr);
break;
@@ -6949,9 +6954,8 @@
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_REMAIN_ON_CHANNEL);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
+ if (!hdr) {
+ err = -ENOBUFS;
goto free_msg;
}
@@ -7249,9 +7253,8 @@
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_FRAME);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
+ if (!hdr) {
+ err = -ENOBUFS;
goto free_msg;
}
}
@@ -8130,9 +8133,8 @@
hdr = nl80211hdr_put(msg, info->snd_portid, info->snd_seq, 0,
NL80211_CMD_PROBE_CLIENT);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
+ if (!hdr) {
+ err = -ENOBUFS;
goto free_msg;
}
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 81c8a10..20e86a9 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -976,21 +976,19 @@
struct net_device *dev, u16 reason, bool wextev)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
- int err;
+ int err = 0;
ASSERT_WDEV_LOCK(wdev);
kfree(wdev->connect_keys);
wdev->connect_keys = NULL;
- if (wdev->conn) {
+ if (wdev->conn)
err = cfg80211_sme_disconnect(wdev, reason);
- } else if (!rdev->ops->disconnect) {
+ else if (!rdev->ops->disconnect)
cfg80211_mlme_down(rdev, dev);
- err = 0;
- } else {
+ else if (wdev->current_bss)
err = rdev_disconnect(rdev, dev, reason);
- }
return err;
}
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 8e77cbb..e3c7ba8 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -522,7 +522,7 @@
}
#define nid_has_mute(codec, nid, dir) \
- check_amp_caps(codec, nid, dir, AC_AMPCAP_MUTE)
+ check_amp_caps(codec, nid, dir, (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE))
#define nid_has_volume(codec, nid, dir) \
check_amp_caps(codec, nid, dir, AC_AMPCAP_NUM_STEPS)
@@ -624,7 +624,7 @@
if (enable)
val = (caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT;
}
- if (caps & AC_AMPCAP_MUTE) {
+ if (caps & (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) {
if (!enable)
val |= HDA_AMP_MUTE;
}
@@ -648,7 +648,7 @@
{
unsigned int mask = 0xff;
- if (caps & AC_AMPCAP_MUTE) {
+ if (caps & (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)) {
if (is_ctl_associated(codec, nid, dir, idx, NID_PATH_MUTE_CTL))
mask &= ~0x80;
}
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8bd2261..f303cd8 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1031,6 +1031,7 @@
ALC880_FIXUP_GPIO2,
ALC880_FIXUP_MEDION_RIM,
ALC880_FIXUP_LG,
+ ALC880_FIXUP_LG_LW25,
ALC880_FIXUP_W810,
ALC880_FIXUP_EAPD_COEF,
ALC880_FIXUP_TCL_S700,
@@ -1089,6 +1090,14 @@
{ }
}
},
+ [ALC880_FIXUP_LG_LW25] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ { 0x1a, 0x0181344f }, /* line-in */
+ { 0x1b, 0x0321403f }, /* headphone */
+ { }
+ }
+ },
[ALC880_FIXUP_W810] = {
.type = HDA_FIXUP_PINS,
.v.pins = (const struct hda_pintbl[]) {
@@ -1341,6 +1350,7 @@
SND_PCI_QUIRK(0x1854, 0x003b, "LG", ALC880_FIXUP_LG),
SND_PCI_QUIRK(0x1854, 0x005f, "LG P1 Express", ALC880_FIXUP_LG),
SND_PCI_QUIRK(0x1854, 0x0068, "LG w1", ALC880_FIXUP_LG),
+ SND_PCI_QUIRK(0x1854, 0x0077, "LG LW25", ALC880_FIXUP_LG_LW25),
SND_PCI_QUIRK(0x19db, 0x4188, "TCL S700", ALC880_FIXUP_TCL_S700),
/* Below is the copied entries from alc880_quirks.c.
@@ -4329,6 +4339,7 @@
SND_PCI_QUIRK(0x1025, 0x0308, "Acer Aspire 8942G", ALC662_FIXUP_ASPIRE),
SND_PCI_QUIRK(0x1025, 0x031c, "Gateway NV79", ALC662_FIXUP_SKU_IGNORE),
SND_PCI_QUIRK(0x1025, 0x0349, "eMachines eM250", ALC662_FIXUP_INV_DMIC),
+ SND_PCI_QUIRK(0x1025, 0x034a, "Gateway LT27", ALC662_FIXUP_INV_DMIC),
SND_PCI_QUIRK(0x1025, 0x038b, "Acer Aspire 8943G", ALC662_FIXUP_ASPIRE),
SND_PCI_QUIRK(0x1028, 0x05d8, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x05db, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c
index 987f728..be2ba1b 100644
--- a/sound/soc/codecs/cs42l52.c
+++ b/sound/soc/codecs/cs42l52.c
@@ -195,6 +195,8 @@
static DECLARE_TLV_DB_SCALE(mix_tlv, -50, 50, 0);
+static DECLARE_TLV_DB_SCALE(beep_tlv, -56, 200, 0);
+
static const unsigned int limiter_tlv[] = {
TLV_DB_RANGE_HEAD(2),
0, 2, TLV_DB_SCALE_ITEM(-3000, 600, 0),
@@ -451,7 +453,8 @@
SOC_ENUM("Beep Pitch", beep_pitch_enum),
SOC_ENUM("Beep on Time", beep_ontime_enum),
SOC_ENUM("Beep off Time", beep_offtime_enum),
- SOC_SINGLE_TLV("Beep Volume", CS42L52_BEEP_VOL, 0, 0x1f, 0x07, hl_tlv),
+ SOC_SINGLE_SX_TLV("Beep Volume", CS42L52_BEEP_VOL,
+ 0, 0x07, 0x1f, beep_tlv),
SOC_SINGLE("Beep Mixer Switch", CS42L52_BEEP_TONE_CTL, 5, 1, 1),
SOC_ENUM("Beep Treble Corner Freq", beep_treble_enum),
SOC_ENUM("Beep Bass Corner Freq", beep_bass_enum),
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index 6c8a9e7..760e8bf 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -153,6 +153,8 @@
static int power_vag_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol, int event)
{
+ const u32 mask = SGTL5000_DAC_POWERUP | SGTL5000_ADC_POWERUP;
+
switch (event) {
case SND_SOC_DAPM_POST_PMU:
snd_soc_update_bits(w->codec, SGTL5000_CHIP_ANA_POWER,
@@ -160,9 +162,17 @@
break;
case SND_SOC_DAPM_PRE_PMD:
- snd_soc_update_bits(w->codec, SGTL5000_CHIP_ANA_POWER,
- SGTL5000_VAG_POWERUP, 0);
- msleep(400);
+ /*
+ * Don't clear VAG_POWERUP, when both DAC and ADC are
+ * operational to prevent inadvertently starving the
+ * other one of them.
+ */
+ if ((snd_soc_read(w->codec, SGTL5000_CHIP_ANA_POWER) &
+ mask) != mask) {
+ snd_soc_update_bits(w->codec, SGTL5000_CHIP_ANA_POWER,
+ SGTL5000_VAG_POWERUP, 0);
+ msleep(400);
+ }
break;
default:
break;
@@ -388,7 +398,7 @@
SOC_DOUBLE("Capture Volume", SGTL5000_CHIP_ANA_ADC_CTRL, 0, 4, 0xf, 0),
SOC_SINGLE_TLV("Capture Attenuate Switch (-6dB)",
SGTL5000_CHIP_ANA_ADC_CTRL,
- 8, 2, 0, capture_6db_attenuate),
+ 8, 1, 0, capture_6db_attenuate),
SOC_SINGLE("Capture ZC Switch", SGTL5000_CHIP_ANA_CTRL, 1, 1, 0),
SOC_DOUBLE_TLV("Headphone Playback Volume",
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index bd16010..4375c9f 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -679,13 +679,14 @@
return -EINVAL;
}
- path = list_first_entry(&w->sources, struct snd_soc_dapm_path,
- list_sink);
- if (!path) {
+ if (list_empty(&w->sources)) {
dev_err(dapm->dev, "ASoC: mux %s has no paths\n", w->name);
return -EINVAL;
}
+ path = list_first_entry(&w->sources, struct snd_soc_dapm_path,
+ list_sink);
+
ret = dapm_create_or_share_mixmux_kcontrol(w, 0, path);
if (ret < 0)
return ret;
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index d04146c..47565fd04 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -228,7 +228,7 @@
reg = TEGRA30_I2S_CIF_RX_CTRL;
} else {
val |= TEGRA30_AUDIOCIF_CTRL_DIRECTION_TX;
- reg = TEGRA30_I2S_CIF_RX_CTRL;
+ reg = TEGRA30_I2S_CIF_TX_CTRL;
}
regmap_write(i2s->regmap, reg, val);
diff --git a/sound/usb/6fire/midi.c b/sound/usb/6fire/midi.c
index 2672242..f3dd726 100644
--- a/sound/usb/6fire/midi.c
+++ b/sound/usb/6fire/midi.c
@@ -19,6 +19,10 @@
#include "chip.h"
#include "comm.h"
+enum {
+ MIDI_BUFSIZE = 64
+};
+
static void usb6fire_midi_out_handler(struct urb *urb)
{
struct midi_runtime *rt = urb->context;
@@ -156,6 +160,12 @@
if (!rt)
return -ENOMEM;
+ rt->out_buffer = kzalloc(MIDI_BUFSIZE, GFP_KERNEL);
+ if (!rt->out_buffer) {
+ kfree(rt);
+ return -ENOMEM;
+ }
+
rt->chip = chip;
rt->in_received = usb6fire_midi_in_received;
rt->out_buffer[0] = 0x80; /* 'send midi' command */
@@ -169,6 +179,7 @@
ret = snd_rawmidi_new(chip->card, "6FireUSB", 0, 1, 1, &rt->instance);
if (ret < 0) {
+ kfree(rt->out_buffer);
kfree(rt);
snd_printk(KERN_ERR PREFIX "unable to create midi.\n");
return ret;
@@ -197,6 +208,9 @@
void usb6fire_midi_destroy(struct sfire_chip *chip)
{
- kfree(chip->midi);
+ struct midi_runtime *rt = chip->midi;
+
+ kfree(rt->out_buffer);
+ kfree(rt);
chip->midi = NULL;
}
diff --git a/sound/usb/6fire/midi.h b/sound/usb/6fire/midi.h
index c321006..84851b9 100644
--- a/sound/usb/6fire/midi.h
+++ b/sound/usb/6fire/midi.h
@@ -16,10 +16,6 @@
#include "common.h"
-enum {
- MIDI_BUFSIZE = 64
-};
-
struct midi_runtime {
struct sfire_chip *chip;
struct snd_rawmidi *instance;
@@ -32,7 +28,7 @@
struct snd_rawmidi_substream *out;
struct urb out_urb;
u8 out_serial; /* serial number of out packet */
- u8 out_buffer[MIDI_BUFSIZE];
+ u8 *out_buffer;
int buffer_offset;
void (*in_received)(struct midi_runtime *rt, u8 *data, int length);
diff --git a/sound/usb/6fire/pcm.c b/sound/usb/6fire/pcm.c
index 3d2551c..b5eb97f 100644
--- a/sound/usb/6fire/pcm.c
+++ b/sound/usb/6fire/pcm.c
@@ -582,6 +582,33 @@
urb->instance.number_of_packets = PCM_N_PACKETS_PER_URB;
}
+static int usb6fire_pcm_buffers_init(struct pcm_runtime *rt)
+{
+ int i;
+
+ for (i = 0; i < PCM_N_URBS; i++) {
+ rt->out_urbs[i].buffer = kzalloc(PCM_N_PACKETS_PER_URB
+ * PCM_MAX_PACKET_SIZE, GFP_KERNEL);
+ if (!rt->out_urbs[i].buffer)
+ return -ENOMEM;
+ rt->in_urbs[i].buffer = kzalloc(PCM_N_PACKETS_PER_URB
+ * PCM_MAX_PACKET_SIZE, GFP_KERNEL);
+ if (!rt->in_urbs[i].buffer)
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static void usb6fire_pcm_buffers_destroy(struct pcm_runtime *rt)
+{
+ int i;
+
+ for (i = 0; i < PCM_N_URBS; i++) {
+ kfree(rt->out_urbs[i].buffer);
+ kfree(rt->in_urbs[i].buffer);
+ }
+}
+
int usb6fire_pcm_init(struct sfire_chip *chip)
{
int i;
@@ -593,6 +620,13 @@
if (!rt)
return -ENOMEM;
+ ret = usb6fire_pcm_buffers_init(rt);
+ if (ret) {
+ usb6fire_pcm_buffers_destroy(rt);
+ kfree(rt);
+ return ret;
+ }
+
rt->chip = chip;
rt->stream_state = STREAM_DISABLED;
rt->rate = ARRAY_SIZE(rates);
@@ -614,6 +648,7 @@
ret = snd_pcm_new(chip->card, "DMX6FireUSB", 0, 1, 1, &pcm);
if (ret < 0) {
+ usb6fire_pcm_buffers_destroy(rt);
kfree(rt);
snd_printk(KERN_ERR PREFIX "cannot create pcm instance.\n");
return ret;
@@ -625,6 +660,7 @@
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_ops);
if (ret) {
+ usb6fire_pcm_buffers_destroy(rt);
kfree(rt);
snd_printk(KERN_ERR PREFIX
"error preallocating pcm buffers.\n");
@@ -669,6 +705,9 @@
void usb6fire_pcm_destroy(struct sfire_chip *chip)
{
- kfree(chip->pcm);
+ struct pcm_runtime *rt = chip->pcm;
+
+ usb6fire_pcm_buffers_destroy(rt);
+ kfree(rt);
chip->pcm = NULL;
}
diff --git a/sound/usb/6fire/pcm.h b/sound/usb/6fire/pcm.h
index 9b01133..f5779d6 100644
--- a/sound/usb/6fire/pcm.h
+++ b/sound/usb/6fire/pcm.h
@@ -32,7 +32,7 @@
struct urb instance;
struct usb_iso_packet_descriptor packets[PCM_N_PACKETS_PER_URB];
/* END DO NOT SEPARATE */
- u8 buffer[PCM_N_PACKETS_PER_URB * PCM_MAX_PACKET_SIZE];
+ u8 *buffer;
struct pcm_urb *peer;
};
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index d543808..95558ef 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -888,6 +888,7 @@
case USB_ID(0x046d, 0x081b): /* HD Webcam c310 */
case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */
case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */
+ case USB_ID(0x046d, 0x0826): /* HD Webcam c525 */
case USB_ID(0x046d, 0x0991):
/* Most audio usb devices lie about volume resolution.
* Most Logitech webcams have res = 384.
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 1bc45e7..0df9ede 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -319,19 +319,19 @@
if (altsd->bNumEndpoints < 1)
return -ENODEV;
epd = get_endpoint(alts, 0);
- if (!usb_endpoint_xfer_bulk(epd) ||
+ if (!usb_endpoint_xfer_bulk(epd) &&
!usb_endpoint_xfer_int(epd))
return -ENODEV;
switch (USB_ID_VENDOR(chip->usb_id)) {
case 0x0499: /* Yamaha */
err = create_yamaha_midi_quirk(chip, iface, driver, alts);
- if (err < 0 && err != -ENODEV)
+ if (err != -ENODEV)
return err;
break;
case 0x0582: /* Roland */
err = create_roland_midi_quirk(chip, iface, driver, alts);
- if (err < 0 && err != -ENODEV)
+ if (err != -ENODEV)
return err;
break;
}