Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
"Two oneliner 'perf bench' tooling fixes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf bench: Fix NULL pointer dereference in "perf bench all"
perf bench numa: Make no args mean 'run all tests'
diff --git a/MAINTAINERS b/MAINTAINERS
index b3fdb0f..55a57ed 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -911,11 +911,11 @@
F: arch/arm/mach-footbridge/
ARM/FREESCALE IMX / MXC ARM ARCHITECTURE
-M: Shawn Guo <shawn.guo@linaro.org>
+M: Shawn Guo <shawn.guo@freescale.com>
M: Sascha Hauer <kernel@pengutronix.de>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
-T: git git://git.linaro.org/people/shawnguo/linux-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git
F: arch/arm/mach-imx/
F: arch/arm/boot/dts/imx*
F: arch/arm/configs/imx*_defconfig
diff --git a/arch/arm/boot/dts/sama5d36.dtsi b/arch/arm/boot/dts/sama5d36.dtsi
index 6c31c26..db58cad 100644
--- a/arch/arm/boot/dts/sama5d36.dtsi
+++ b/arch/arm/boot/dts/sama5d36.dtsi
@@ -8,8 +8,8 @@
*/
#include "sama5d3.dtsi"
#include "sama5d3_can.dtsi"
-#include "sama5d3_emac.dtsi"
#include "sama5d3_gmac.dtsi"
+#include "sama5d3_emac.dtsi"
#include "sama5d3_lcd.dtsi"
#include "sama5d3_mci2.dtsi"
#include "sama5d3_tcb1.dtsi"
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index dcae3a7..95fa1f1 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1776,12 +1776,12 @@
config FORCE_MAX_ZONEORDER
int "Maximum zone order"
- range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB
- default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB
- range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB
- default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB
- range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB
- default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB
+ range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
+ default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
+ range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
+ default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
+ range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
+ default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
range 11 64
default "11"
help
@@ -2353,9 +2353,8 @@
If unsure, say Y. Only embedded should say N here.
config MIPS_O32_FP64_SUPPORT
- bool "Support for O32 binaries using 64-bit FP"
+ bool "Support for O32 binaries using 64-bit FP (EXPERIMENTAL)"
depends on 32BIT || MIPS32_O32
- default y
help
When this is enabled, the kernel will support use of 64-bit floating
point registers with binaries using the O32 ABI along with the
@@ -2367,7 +2366,14 @@
of your kernel & potentially improve FP emulation performance by
saying N here.
- If unsure, say Y.
+ Although binutils currently supports use of this flag the details
+ concerning its effect upon the O32 ABI in userland are still being
+ worked on. In order to avoid userland becoming dependant upon current
+ behaviour before the details have been finalised, this option should
+ be considered experimental and only enabled by those working upon
+ said details.
+
+ If unsure, say N.
config USE_OF
bool
diff --git a/arch/mips/alchemy/board-gpr.c b/arch/mips/alchemy/board-gpr.c
index 9edc35f..acf9a2a 100644
--- a/arch/mips/alchemy/board-gpr.c
+++ b/arch/mips/alchemy/board-gpr.c
@@ -53,10 +53,8 @@
prom_init_cmdline();
memsize_str = prom_getenv("memsize");
- if (!memsize_str)
+ if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
memsize = 0x04000000;
- else
- strict_strtoul(memsize_str, 0, &memsize);
add_memory_region(0, memsize, BOOT_MEM_RAM);
}
diff --git a/arch/mips/alchemy/board-mtx1.c b/arch/mips/alchemy/board-mtx1.c
index 9969dba..25a59a2 100644
--- a/arch/mips/alchemy/board-mtx1.c
+++ b/arch/mips/alchemy/board-mtx1.c
@@ -52,10 +52,8 @@
prom_init_cmdline();
memsize_str = prom_getenv("memsize");
- if (!memsize_str)
+ if (!memsize_str || kstrtoul(memsize_str, 0, &memsize))
memsize = 0x04000000;
- else
- strict_strtoul(memsize_str, 0, &memsize);
add_memory_region(0, memsize, BOOT_MEM_RAM);
}
diff --git a/arch/mips/bcm47xx/board.c b/arch/mips/bcm47xx/board.c
index 6d612e2..cdd8246 100644
--- a/arch/mips/bcm47xx/board.c
+++ b/arch/mips/bcm47xx/board.c
@@ -1,3 +1,4 @@
+#include <linux/errno.h>
#include <linux/export.h>
#include <linux/string.h>
#include <bcm47xx_board.h>
diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c
index 6decb27..2bed73a 100644
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -196,7 +196,7 @@
char nvram_var[10];
char buf[30];
- for (i = 0; i < 16; i++) {
+ for (i = 0; i < 32; i++) {
err = snprintf(nvram_var, sizeof(nvram_var), "gpio%i", i);
if (err <= 0)
continue;
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index 25fbfae..c2bb4f8 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -975,10 +975,6 @@
if (ciu > 1 || bit > 63)
return -EINVAL;
- /* These are the GPIO lines */
- if (ciu == 0 && bit >= 16 && bit < 32)
- return -EINVAL;
-
*out_hwirq = (ciu << 6) | bit;
*out_type = 0;
@@ -1007,6 +1003,10 @@
if (!octeon_irq_virq_in_range(virq))
return -EINVAL;
+ /* Don't map irq if it is reserved for GPIO. */
+ if (line == 0 && bit >= 16 && bit <32)
+ return 0;
+
if (line > 1 || octeon_irq_ciu_to_irq[line][bit] != 0)
return -EINVAL;
@@ -1525,10 +1525,6 @@
ciu = intspec[0];
bit = intspec[1];
- /* Line 7 are the GPIO lines */
- if (ciu > 6 || bit > 63)
- return -EINVAL;
-
*out_hwirq = (ciu << 6) | bit;
*out_type = 0;
@@ -1570,8 +1566,14 @@
if (!octeon_irq_virq_in_range(virq))
return -EINVAL;
- /* Line 7 are the GPIO lines */
- if (line > 6 || octeon_irq_ciu_to_irq[line][bit] != 0)
+ /*
+ * Don't map irq if it is reserved for GPIO.
+ * (Line 7 are the GPIO lines.)
+ */
+ if (line == 7)
+ return 0;
+
+ if (line > 7 || octeon_irq_ciu_to_irq[line][bit] != 0)
return -EINVAL;
if (octeon_irq_ciu2_is_edge(line, bit))
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index 3220c93..4225e99 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -9,6 +9,7 @@
#define _ASM_ASMMACRO_H
#include <asm/hazards.h>
+#include <asm/asm-offsets.h>
#ifdef CONFIG_32BIT
#include <asm/asmmacro-32.h>
@@ -54,11 +55,21 @@
.endm
.macro local_irq_disable reg=t0
+#ifdef CONFIG_PREEMPT
+ lw \reg, TI_PRE_COUNT($28)
+ addi \reg, \reg, 1
+ sw \reg, TI_PRE_COUNT($28)
+#endif
mfc0 \reg, CP0_STATUS
ori \reg, \reg, 1
xori \reg, \reg, 1
mtc0 \reg, CP0_STATUS
irq_disable_hazard
+#ifdef CONFIG_PREEMPT
+ lw \reg, TI_PRE_COUNT($28)
+ addi \reg, \reg, -1
+ sw \reg, TI_PRE_COUNT($28)
+#endif
.endm
#endif /* CONFIG_MIPS_MT_SMTC */
@@ -106,7 +117,7 @@
.endm
.macro fpu_save_double thread status tmp
-#if defined(CONFIG_MIPS64) || defined(CONFIG_CPU_MIPS32_R2)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2)
sll \tmp, \status, 5
bgez \tmp, 10f
fpu_save_16odd \thread
@@ -159,7 +170,7 @@
.endm
.macro fpu_restore_double thread status tmp
-#if defined(CONFIG_MIPS64) || defined(CONFIG_CPU_MIPS32_R2)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2)
sll \tmp, \status, 5
bgez \tmp, 10f # 16 register mode?
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 6b97495..58e50cb 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -57,7 +57,7 @@
return 0;
case FPU_64BIT:
-#if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_MIPS64))
+#if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_64BIT))
/* we only have a 32-bit FPU */
return SIGFPE;
#endif
diff --git a/arch/mips/include/asm/ftrace.h b/arch/mips/include/asm/ftrace.h
index ce35c9a..992aaba 100644
--- a/arch/mips/include/asm/ftrace.h
+++ b/arch/mips/include/asm/ftrace.h
@@ -22,12 +22,12 @@
#define safe_load(load, src, dst, error) \
do { \
asm volatile ( \
- "1: " load " %[" STR(dst) "], 0(%[" STR(src) "])\n"\
- " li %[" STR(error) "], 0\n" \
+ "1: " load " %[tmp_dst], 0(%[tmp_src])\n" \
+ " li %[tmp_err], 0\n" \
"2:\n" \
\
".section .fixup, \"ax\"\n" \
- "3: li %[" STR(error) "], 1\n" \
+ "3: li %[tmp_err], 1\n" \
" j 2b\n" \
".previous\n" \
\
@@ -35,8 +35,8 @@
STR(PTR) "\t1b, 3b\n\t" \
".previous\n" \
\
- : [dst] "=&r" (dst), [error] "=r" (error)\
- : [src] "r" (src) \
+ : [tmp_dst] "=&r" (dst), [tmp_err] "=r" (error)\
+ : [tmp_src] "r" (src) \
: "memory" \
); \
} while (0)
@@ -44,12 +44,12 @@
#define safe_store(store, src, dst, error) \
do { \
asm volatile ( \
- "1: " store " %[" STR(src) "], 0(%[" STR(dst) "])\n"\
- " li %[" STR(error) "], 0\n" \
+ "1: " store " %[tmp_src], 0(%[tmp_dst])\n"\
+ " li %[tmp_err], 0\n" \
"2:\n" \
\
".section .fixup, \"ax\"\n" \
- "3: li %[" STR(error) "], 1\n" \
+ "3: li %[tmp_err], 1\n" \
" j 2b\n" \
".previous\n" \
\
@@ -57,8 +57,8 @@
STR(PTR) "\t1b, 3b\n\t" \
".previous\n" \
\
- : [error] "=r" (error) \
- : [dst] "r" (dst), [src] "r" (src)\
+ : [tmp_err] "=r" (error) \
+ : [tmp_dst] "r" (dst), [tmp_src] "r" (src)\
: "memory" \
); \
} while (0)
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 33e8dbf..f35b131 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -13,6 +13,7 @@
#ifndef __ASM_MIPS_SYSCALL_H
#define __ASM_MIPS_SYSCALL_H
+#include <linux/compiler.h>
#include <linux/audit.h>
#include <linux/elf-em.h>
#include <linux/kernel.h>
@@ -39,14 +40,14 @@
#ifdef CONFIG_32BIT
case 4: case 5: case 6: case 7:
- return get_user(*arg, (int *)usp + 4 * n);
+ return get_user(*arg, (int *)usp + n);
#endif
#ifdef CONFIG_64BIT
case 4: case 5: case 6: case 7:
#ifdef CONFIG_MIPS32_O32
if (test_thread_flag(TIF_32BIT_REGS))
- return get_user(*arg, (int *)usp + 4 * n);
+ return get_user(*arg, (int *)usp + n);
else
#endif
*arg = regs->regs[4 + n];
@@ -57,6 +58,8 @@
default:
BUG();
}
+
+ unreachable();
}
static inline long syscall_get_return_value(struct task_struct *task,
@@ -83,11 +86,10 @@
unsigned int i, unsigned int n,
unsigned long *args)
{
- unsigned long arg;
int ret;
while (n--)
- ret |= mips_get_syscall_arg(&arg, task, regs, i++);
+ ret |= mips_get_syscall_arg(args++, task, regs, i++);
/*
* No way to communicate an error because this is a void function.
diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index b39ba25..f25181b 100644
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -163,8 +163,8 @@
*/
enum cop1x_func {
lwxc1_op = 0x00, ldxc1_op = 0x01,
- pfetch_op = 0x07, swxc1_op = 0x08,
- sdxc1_op = 0x09, madd_s_op = 0x20,
+ swxc1_op = 0x08, sdxc1_op = 0x09,
+ pfetch_op = 0x0f, madd_s_op = 0x20,
madd_d_op = 0x21, madd_e_op = 0x22,
msub_s_op = 0x28, msub_d_op = 0x29,
msub_e_op = 0x2a, nmadd_s_op = 0x30,
diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index 185ba25..374ed74 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -111,11 +111,10 @@
safe_store_code(new_code1, ip, faulted);
if (unlikely(faulted))
return -EFAULT;
- ip += 4;
- safe_store_code(new_code2, ip, faulted);
+ safe_store_code(new_code2, ip + 4, faulted);
if (unlikely(faulted))
return -EFAULT;
- flush_icache_range(ip, ip + 8); /* original ip + 12 */
+ flush_icache_range(ip, ip + 8);
return 0;
}
#endif
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index 253b2fb..73b0ddf 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -35,9 +35,9 @@
LEAF(_save_fp_context)
cfc1 t1, fcr31
-#if defined(CONFIG_64BIT) || defined(CONFIG_MIPS32_R2)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2)
.set push
-#ifdef CONFIG_MIPS32_R2
+#ifdef CONFIG_CPU_MIPS32_R2
.set mips64r2
mfc0 t0, CP0_STATUS
sll t0, t0, 5
@@ -146,11 +146,11 @@
* - cp1 status/control register
*/
LEAF(_restore_fp_context)
- EX lw t0, SC_FPC_CSR(a0)
+ EX lw t1, SC_FPC_CSR(a0)
-#if defined(CONFIG_64BIT) || defined(CONFIG_MIPS32_R2)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2)
.set push
-#ifdef CONFIG_MIPS32_R2
+#ifdef CONFIG_CPU_MIPS32_R2
.set mips64r2
mfc0 t0, CP0_STATUS
sll t0, t0, 5
@@ -191,7 +191,7 @@
EX ldc1 $f26, SC_FPREGS+208(a0)
EX ldc1 $f28, SC_FPREGS+224(a0)
EX ldc1 $f30, SC_FPREGS+240(a0)
- ctc1 t0, fcr31
+ ctc1 t1, fcr31
jr ra
li v0, 0 # success
END(_restore_fp_context)
@@ -199,7 +199,7 @@
#ifdef CONFIG_MIPS32_COMPAT
LEAF(_restore_fp_context32)
/* Restore an o32 sigcontext. */
- EX lw t0, SC32_FPC_CSR(a0)
+ EX lw t1, SC32_FPC_CSR(a0)
mfc0 t0, CP0_STATUS
sll t0, t0, 5
@@ -239,7 +239,7 @@
EX ldc1 $f26, SC32_FPREGS+208(a0)
EX ldc1 $f28, SC32_FPREGS+224(a0)
EX ldc1 $f30, SC32_FPREGS+240(a0)
- ctc1 t0, fcr31
+ ctc1 t1, fcr31
jr ra
li v0, 0 # success
END(_restore_fp_context32)
diff --git a/arch/mips/kernel/rtlx-cmp.c b/arch/mips/kernel/rtlx-cmp.c
index 56dc696..758fb3c 100644
--- a/arch/mips/kernel/rtlx-cmp.c
+++ b/arch/mips/kernel/rtlx-cmp.c
@@ -112,5 +112,8 @@
for (i = 0; i < RTLX_CHANNELS; i++)
device_destroy(mt_class, MKDEV(major, i));
+
unregister_chrdev(major, RTLX_MODULE_NAME);
+
+ aprp_hook = NULL;
}
diff --git a/arch/mips/kernel/rtlx-mt.c b/arch/mips/kernel/rtlx-mt.c
index 91d61ba..9c1aca0 100644
--- a/arch/mips/kernel/rtlx-mt.c
+++ b/arch/mips/kernel/rtlx-mt.c
@@ -144,5 +144,8 @@
for (i = 0; i < RTLX_CHANNELS; i++)
device_destroy(mt_class, MKDEV(major, i));
+
unregister_chrdev(major, RTLX_MODULE_NAME);
+
+ aprp_hook = NULL;
}
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index 506925b..0b4e2e3 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -1538,10 +1538,10 @@
break;
}
- case 0x7: /* 7 */
- if (MIPSInst_FUNC(ir) != pfetch_op) {
+ case 0x3:
+ if (MIPSInst_FUNC(ir) != pfetch_op)
return SIGILL;
- }
+
/* ignore prefx operation */
break;
diff --git a/arch/mips/mti-malta/malta-amon.c b/arch/mips/mti-malta/malta-amon.c
index 592ac04..84ac523 100644
--- a/arch/mips/mti-malta/malta-amon.c
+++ b/arch/mips/mti-malta/malta-amon.c
@@ -72,7 +72,7 @@
return 0;
}
-#ifdef CONFIG_MIPS_VPE_LOADER
+#ifdef CONFIG_MIPS_VPE_LOADER_CMP
int vpe_run(struct vpe *v)
{
struct vpe_notifications *n;
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index ca3e3a4..2242181 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -119,7 +119,7 @@
do_IRQ(MALTA_INT_BASE + irq);
-#ifdef MIPS_VPE_APSP_API
+#ifdef CONFIG_MIPS_VPE_APSP_API_MT
if (aprp_hook)
aprp_hook();
#endif
@@ -310,7 +310,7 @@
static irqreturn_t ipi_resched_interrupt(int irq, void *dev_id)
{
-#ifdef MIPS_VPE_APSP_API
+#ifdef CONFIG_MIPS_VPE_APSP_API_CMP
if (aprp_hook)
aprp_hook();
#endif
diff --git a/arch/mips/pci/msi-octeon.c b/arch/mips/pci/msi-octeon.c
index d37be36..2b91b0e 100644
--- a/arch/mips/pci/msi-octeon.c
+++ b/arch/mips/pci/msi-octeon.c
@@ -150,6 +150,7 @@
msg.address_lo =
((128ul << 20) + CVMX_PCI_MSI_RCV) & 0xffffffff;
msg.address_hi = ((128ul << 20) + CVMX_PCI_MSI_RCV) >> 32;
+ break;
case OCTEON_DMA_BAR_TYPE_BIG:
/* When using big bar, Bar 0 is based at 0 */
msg.address_lo = (0 + CVMX_PCI_MSI_RCV) & 0xffffffff;
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index e66d4ec..818dce3 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1504,73 +1504,6 @@
1: addi r8,r8,16
.endr
- /* Save DEC */
- mfspr r5,SPRN_DEC
- mftb r6
- extsw r5,r5
- add r5,r5,r6
- std r5,VCPU_DEC_EXPIRES(r9)
-
-BEGIN_FTR_SECTION
- b 8f
-END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
- /* Turn on TM so we can access TFHAR/TFIAR/TEXASR */
- mfmsr r8
- li r0, 1
- rldimi r8, r0, MSR_TM_LG, 63-MSR_TM_LG
- mtmsrd r8
-
- /* Save POWER8-specific registers */
- mfspr r5, SPRN_IAMR
- mfspr r6, SPRN_PSPB
- mfspr r7, SPRN_FSCR
- std r5, VCPU_IAMR(r9)
- stw r6, VCPU_PSPB(r9)
- std r7, VCPU_FSCR(r9)
- mfspr r5, SPRN_IC
- mfspr r6, SPRN_VTB
- mfspr r7, SPRN_TAR
- std r5, VCPU_IC(r9)
- std r6, VCPU_VTB(r9)
- std r7, VCPU_TAR(r9)
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
- mfspr r5, SPRN_TFHAR
- mfspr r6, SPRN_TFIAR
- mfspr r7, SPRN_TEXASR
- std r5, VCPU_TFHAR(r9)
- std r6, VCPU_TFIAR(r9)
- std r7, VCPU_TEXASR(r9)
-#endif
- mfspr r8, SPRN_EBBHR
- std r8, VCPU_EBBHR(r9)
- mfspr r5, SPRN_EBBRR
- mfspr r6, SPRN_BESCR
- mfspr r7, SPRN_CSIGR
- mfspr r8, SPRN_TACR
- std r5, VCPU_EBBRR(r9)
- std r6, VCPU_BESCR(r9)
- std r7, VCPU_CSIGR(r9)
- std r8, VCPU_TACR(r9)
- mfspr r5, SPRN_TCSCR
- mfspr r6, SPRN_ACOP
- mfspr r7, SPRN_PID
- mfspr r8, SPRN_WORT
- std r5, VCPU_TCSCR(r9)
- std r6, VCPU_ACOP(r9)
- stw r7, VCPU_GUEST_PID(r9)
- std r8, VCPU_WORT(r9)
-8:
-
- /* Save and reset AMR and UAMOR before turning on the MMU */
-BEGIN_FTR_SECTION
- mfspr r5,SPRN_AMR
- mfspr r6,SPRN_UAMOR
- std r5,VCPU_AMR(r9)
- std r6,VCPU_UAMOR(r9)
- li r6,0
- mtspr SPRN_AMR,r6
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
-
/* Unset guest mode */
li r0, KVM_GUEST_MODE_NONE
stb r0, HSTATE_IN_GUEST(r13)
@@ -2203,7 +2136,7 @@
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
mfspr r6,SPRN_VRSAVE
- stw r6,VCPU_VRSAVE(r3)
+ stw r6,VCPU_VRSAVE(r31)
mtlr r30
mtmsrd r5
isync
@@ -2240,7 +2173,7 @@
bl .load_vr_state
END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
#endif
- lwz r7,VCPU_VRSAVE(r4)
+ lwz r7,VCPU_VRSAVE(r31)
mtspr SPRN_VRSAVE,r7
mtlr r30
mr r4,r31
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index fd972a3..9fa8aa0 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -18,7 +18,6 @@
#include <linux/pci_ids.h>
#include <linux/pci.h>
#include <linux/bitops.h>
-#include <linux/ioport.h>
#include <linux/suspend.h>
#include <asm/e820.h>
#include <asm/io.h>
@@ -54,18 +53,6 @@
int fix_aperture __initdata = 1;
-static struct resource gart_resource = {
- .name = "GART",
- .flags = IORESOURCE_MEM,
-};
-
-static void __init insert_aperture_resource(u32 aper_base, u32 aper_size)
-{
- gart_resource.start = aper_base;
- gart_resource.end = aper_base + aper_size - 1;
- insert_resource(&iomem_resource, &gart_resource);
-}
-
/* This code runs before the PCI subsystem is initialized, so just
access the northbridge directly. */
@@ -96,7 +83,6 @@
memblock_reserve(addr, aper_size);
printk(KERN_INFO "Mapping aperture over %d KB of RAM @ %lx\n",
aper_size >> 10, addr);
- insert_aperture_resource((u32)addr, aper_size);
register_nosave_region(addr >> PAGE_SHIFT,
(addr+aper_size) >> PAGE_SHIFT);
@@ -444,12 +430,8 @@
out:
if (!fix && !fallback_aper_force) {
- if (last_aper_base) {
- unsigned long n = (32 * 1024 * 1024) << last_aper_order;
-
- insert_aperture_resource((u32)last_aper_base, n);
+ if (last_aper_base)
return 1;
- }
return 0;
}
diff --git a/block/blk-core.c b/block/blk-core.c
index 853f927..bfe16d5 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -693,20 +693,11 @@
if (!uninit_q)
return NULL;
- uninit_q->flush_rq = kzalloc(sizeof(struct request), GFP_KERNEL);
- if (!uninit_q->flush_rq)
- goto out_cleanup_queue;
-
q = blk_init_allocated_queue(uninit_q, rfn, lock);
if (!q)
- goto out_free_flush_rq;
- return q;
+ blk_cleanup_queue(uninit_q);
-out_free_flush_rq:
- kfree(uninit_q->flush_rq);
-out_cleanup_queue:
- blk_cleanup_queue(uninit_q);
- return NULL;
+ return q;
}
EXPORT_SYMBOL(blk_init_queue_node);
@@ -717,9 +708,13 @@
if (!q)
return NULL;
- if (blk_init_rl(&q->root_rl, q, GFP_KERNEL))
+ q->flush_rq = kzalloc(sizeof(struct request), GFP_KERNEL);
+ if (!q->flush_rq)
return NULL;
+ if (blk_init_rl(&q->root_rl, q, GFP_KERNEL))
+ goto fail;
+
q->request_fn = rfn;
q->prep_rq_fn = NULL;
q->unprep_rq_fn = NULL;
@@ -742,12 +737,16 @@
/* init elevator */
if (elevator_init(q, NULL)) {
mutex_unlock(&q->sysfs_lock);
- return NULL;
+ goto fail;
}
mutex_unlock(&q->sysfs_lock);
return q;
+
+fail:
+ kfree(q->flush_rq);
+ return NULL;
}
EXPORT_SYMBOL(blk_init_allocated_queue);
diff --git a/block/blk-flush.c b/block/blk-flush.c
index f598f79..43e6b47 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -140,14 +140,17 @@
blk_mq_insert_request(rq, false, true, false);
}
-static bool blk_flush_queue_rq(struct request *rq)
+static bool blk_flush_queue_rq(struct request *rq, bool add_front)
{
if (rq->q->mq_ops) {
INIT_WORK(&rq->mq_flush_work, mq_flush_run);
kblockd_schedule_work(rq->q, &rq->mq_flush_work);
return false;
} else {
- list_add_tail(&rq->queuelist, &rq->q->queue_head);
+ if (add_front)
+ list_add(&rq->queuelist, &rq->q->queue_head);
+ else
+ list_add_tail(&rq->queuelist, &rq->q->queue_head);
return true;
}
}
@@ -193,7 +196,7 @@
case REQ_FSEQ_DATA:
list_move_tail(&rq->flush.list, &q->flush_data_in_flight);
- queued = blk_flush_queue_rq(rq);
+ queued = blk_flush_queue_rq(rq, true);
break;
case REQ_FSEQ_DONE:
@@ -326,7 +329,7 @@
q->flush_rq->rq_disk = first_rq->rq_disk;
q->flush_rq->end_io = flush_end_io;
- return blk_flush_queue_rq(q->flush_rq);
+ return blk_flush_queue_rq(q->flush_rq, false);
}
static void flush_data_end_io(struct request *rq, int error)
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 51602695..d777bb7 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -4498,7 +4498,7 @@
}
dev_info(&pdev->dev, "NUMA node %d (closest: %d,%d, probe on %d:%d)\n",
my_node, pcibus_to_node(pdev->bus), dev_to_node(&pdev->dev),
- cpu_to_node(smp_processor_id()), smp_processor_id());
+ cpu_to_node(raw_smp_processor_id()), raw_smp_processor_id());
dd = kzalloc_node(sizeof(struct driver_data), GFP_KERNEL, my_node);
if (dd == NULL) {
diff --git a/drivers/clocksource/vf_pit_timer.c b/drivers/clocksource/vf_pit_timer.c
index 02821b0..a918bc4 100644
--- a/drivers/clocksource/vf_pit_timer.c
+++ b/drivers/clocksource/vf_pit_timer.c
@@ -54,7 +54,7 @@
static u64 pit_read_sched_clock(void)
{
- return __raw_readl(clksrc_base + PITCVAL);
+ return ~__raw_readl(clksrc_base + PITCVAL);
}
static int __init pit_clocksource_init(unsigned long rate)
diff --git a/drivers/gpu/drm/drm_pci.c b/drivers/gpu/drm/drm_pci.c
index 5736aaa..f7af69b 100644
--- a/drivers/gpu/drm/drm_pci.c
+++ b/drivers/gpu/drm/drm_pci.c
@@ -468,8 +468,8 @@
} else {
list_for_each_entry_safe(dev, tmp, &driver->legacy_dev_list,
legacy_dev_list) {
- drm_put_dev(dev);
list_del(&dev->legacy_dev_list);
+ drm_put_dev(dev);
}
}
DRM_INFO("Module unloaded\n");
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 215131a..c204b4e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -172,20 +172,24 @@
ret = exynos_drm_subdrv_open(dev, file);
if (ret)
- goto out;
+ goto err_file_priv_free;
anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
NULL, 0);
if (IS_ERR(anon_filp)) {
ret = PTR_ERR(anon_filp);
- goto out;
+ goto err_subdrv_close;
}
anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
file_priv->anon_filp = anon_filp;
return ret;
-out:
+
+err_subdrv_close:
+ exynos_drm_subdrv_close(dev, file);
+
+err_file_priv_free:
kfree(file_priv);
file->driver_priv = NULL;
return ret;
diff --git a/drivers/gpu/drm/i915/i915_gem_stolen.c b/drivers/gpu/drm/i915/i915_gem_stolen.c
index d58b4e2..28d24ca 100644
--- a/drivers/gpu/drm/i915/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/i915_gem_stolen.c
@@ -214,6 +214,13 @@
struct drm_i915_private *dev_priv = dev->dev_private;
int bios_reserved = 0;
+#ifdef CONFIG_INTEL_IOMMU
+ if (intel_iommu_gfx_mapped) {
+ DRM_INFO("DMAR active, disabling use of stolen memory\n");
+ return 0;
+ }
+#endif
+
if (dev_priv->gtt.stolen_size == 0)
return 0;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 9fec711..d554169 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -618,33 +618,25 @@
/* raw reads, only for fast reads of display block, no need for forcewake etc. */
#define __raw_i915_read32(dev_priv__, reg__) readl((dev_priv__)->regs + (reg__))
-#define __raw_i915_read16(dev_priv__, reg__) readw((dev_priv__)->regs + (reg__))
static bool ilk_pipe_in_vblank_locked(struct drm_device *dev, enum pipe pipe)
{
struct drm_i915_private *dev_priv = dev->dev_private;
uint32_t status;
+ int reg;
- if (INTEL_INFO(dev)->gen < 7) {
- status = pipe == PIPE_A ?
- DE_PIPEA_VBLANK :
- DE_PIPEB_VBLANK;
+ if (INTEL_INFO(dev)->gen >= 8) {
+ status = GEN8_PIPE_VBLANK;
+ reg = GEN8_DE_PIPE_ISR(pipe);
+ } else if (INTEL_INFO(dev)->gen >= 7) {
+ status = DE_PIPE_VBLANK_IVB(pipe);
+ reg = DEISR;
} else {
- switch (pipe) {
- default:
- case PIPE_A:
- status = DE_PIPEA_VBLANK_IVB;
- break;
- case PIPE_B:
- status = DE_PIPEB_VBLANK_IVB;
- break;
- case PIPE_C:
- status = DE_PIPEC_VBLANK_IVB;
- break;
- }
+ status = DE_PIPE_VBLANK(pipe);
+ reg = DEISR;
}
- return __raw_i915_read32(dev_priv, DEISR) & status;
+ return __raw_i915_read32(dev_priv, reg) & status;
}
static int i915_get_crtc_scanoutpos(struct drm_device *dev, int pipe,
@@ -702,7 +694,28 @@
else
position = __raw_i915_read32(dev_priv, PIPEDSL(pipe)) & DSL_LINEMASK_GEN3;
- if (HAS_PCH_SPLIT(dev)) {
+ if (HAS_DDI(dev)) {
+ /*
+ * On HSW HDMI outputs there seems to be a 2 line
+ * difference, whereas eDP has the normal 1 line
+ * difference that earlier platforms have. External
+ * DP is unknown. For now just check for the 2 line
+ * difference case on all output types on HSW+.
+ *
+ * This might misinterpret the scanline counter being
+ * one line too far along on eDP, but that's less
+ * dangerous than the alternative since that would lead
+ * the vblank timestamp code astray when it sees a
+ * scanline count before vblank_start during a vblank
+ * interrupt.
+ */
+ in_vbl = ilk_pipe_in_vblank_locked(dev, pipe);
+ if ((in_vbl && (position == vbl_start - 2 ||
+ position == vbl_start - 1)) ||
+ (!in_vbl && (position == vbl_end - 2 ||
+ position == vbl_end - 1)))
+ position = (position + 2) % vtotal;
+ } else if (HAS_PCH_SPLIT(dev)) {
/*
* The scanline counter increments at the leading edge
* of hsync, ie. it completely misses the active portion
@@ -2769,10 +2782,9 @@
return;
if (HAS_PCH_IBX(dev)) {
- mask = SDE_GMBUS | SDE_AUX_MASK | SDE_TRANSB_FIFO_UNDER |
- SDE_TRANSA_FIFO_UNDER | SDE_POISON;
+ mask = SDE_GMBUS | SDE_AUX_MASK | SDE_POISON;
} else {
- mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT | SDE_ERROR_CPT;
+ mask = SDE_GMBUS_CPT | SDE_AUX_MASK_CPT;
I915_WRITE(SERR_INT, I915_READ(SERR_INT));
}
@@ -2832,20 +2844,19 @@
display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE_IVB |
DE_PCH_EVENT_IVB | DE_PLANEC_FLIP_DONE_IVB |
DE_PLANEB_FLIP_DONE_IVB |
- DE_PLANEA_FLIP_DONE_IVB | DE_AUX_CHANNEL_A_IVB |
- DE_ERR_INT_IVB);
+ DE_PLANEA_FLIP_DONE_IVB | DE_AUX_CHANNEL_A_IVB);
extra_mask = (DE_PIPEC_VBLANK_IVB | DE_PIPEB_VBLANK_IVB |
- DE_PIPEA_VBLANK_IVB);
+ DE_PIPEA_VBLANK_IVB | DE_ERR_INT_IVB);
I915_WRITE(GEN7_ERR_INT, I915_READ(GEN7_ERR_INT));
} else {
display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT |
DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE |
DE_AUX_CHANNEL_A |
- DE_PIPEB_FIFO_UNDERRUN | DE_PIPEA_FIFO_UNDERRUN |
DE_PIPEB_CRC_DONE | DE_PIPEA_CRC_DONE |
DE_POISON);
- extra_mask = DE_PIPEA_VBLANK | DE_PIPEB_VBLANK | DE_PCU_EVENT;
+ extra_mask = DE_PIPEA_VBLANK | DE_PIPEB_VBLANK | DE_PCU_EVENT |
+ DE_PIPEB_FIFO_UNDERRUN | DE_PIPEA_FIFO_UNDERRUN;
}
dev_priv->irq_mask = ~display_mask;
@@ -2961,9 +2972,9 @@
struct drm_device *dev = dev_priv->dev;
uint32_t de_pipe_masked = GEN8_PIPE_FLIP_DONE |
GEN8_PIPE_CDCLK_CRC_DONE |
- GEN8_PIPE_FIFO_UNDERRUN |
GEN8_DE_PIPE_IRQ_FAULT_ERRORS;
- uint32_t de_pipe_enables = de_pipe_masked | GEN8_PIPE_VBLANK;
+ uint32_t de_pipe_enables = de_pipe_masked | GEN8_PIPE_VBLANK |
+ GEN8_PIPE_FIFO_UNDERRUN;
int pipe;
dev_priv->de_irq_mask[PIPE_A] = ~de_pipe_masked;
dev_priv->de_irq_mask[PIPE_B] = ~de_pipe_masked;
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index e06b9e0..234ac5f 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1244,6 +1244,7 @@
if (type == INTEL_OUTPUT_DISPLAYPORT || type == INTEL_OUTPUT_EDP) {
struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
+ ironlake_edp_panel_vdd_on(intel_dp);
ironlake_edp_panel_off(intel_dp);
}
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 57552eb..2688f6d 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1249,17 +1249,24 @@
DRM_DEBUG_KMS("Turn eDP power off\n");
+ WARN(!intel_dp->want_panel_vdd, "Need VDD to turn off panel\n");
+
pp = ironlake_get_pp_control(intel_dp);
/* We need to switch off panel power _and_ force vdd, for otherwise some
* panels get very unhappy and cease to work. */
- pp &= ~(POWER_TARGET_ON | PANEL_POWER_RESET | EDP_BLC_ENABLE);
+ pp &= ~(POWER_TARGET_ON | EDP_FORCE_VDD | PANEL_POWER_RESET | EDP_BLC_ENABLE);
pp_ctrl_reg = _pp_ctrl_reg(intel_dp);
I915_WRITE(pp_ctrl_reg, pp);
POSTING_READ(pp_ctrl_reg);
+ intel_dp->want_panel_vdd = false;
+
ironlake_wait_panel_off(intel_dp);
+
+ /* We got a reference when we enabled the VDD. */
+ intel_runtime_pm_put(dev_priv);
}
void ironlake_edp_backlight_on(struct intel_dp *intel_dp)
@@ -1639,7 +1646,7 @@
val |= EDP_PSR_LINK_DISABLE;
I915_WRITE(EDP_PSR_CTL(dev), val |
- IS_BROADWELL(dev) ? 0 : link_entry_time |
+ (IS_BROADWELL(dev) ? 0 : link_entry_time) |
max_sleep_time << EDP_PSR_MAX_SLEEP_TIME_SHIFT |
idle_frames << EDP_PSR_IDLE_FRAME_SHIFT |
EDP_PSR_ENABLE);
@@ -1784,6 +1791,7 @@
/* Make sure the panel is off before trying to change the mode. But also
* ensure that we have vdd while we switch off the panel. */
+ ironlake_edp_panel_vdd_on(intel_dp);
ironlake_edp_backlight_off(intel_dp);
intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
ironlake_edp_panel_off(intel_dp);
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index befe0e3..24883b4 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -43,6 +43,7 @@
#define G25_REV_MIN 0x22
#define G27_REV_MAJ 0x12
#define G27_REV_MIN 0x38
+#define G27_2_REV_MIN 0x39
#define to_hid_device(pdev) container_of(pdev, struct hid_device, dev)
@@ -130,6 +131,7 @@
{DFP_REV_MAJ, DFP_REV_MIN, &native_dfp}, /* Driving Force Pro */
{G25_REV_MAJ, G25_REV_MIN, &native_g25}, /* G25 */
{G27_REV_MAJ, G27_REV_MIN, &native_g27}, /* G27 */
+ {G27_REV_MAJ, G27_2_REV_MIN, &native_g27}, /* G27 v2 */
};
/* Recalculates X axis value accordingly to currently selected range */
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 1235405..2f19b15 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -42,6 +42,7 @@
#define DUALSHOCK4_CONTROLLER_BT BIT(6)
#define SONY_LED_SUPPORT (SIXAXIS_CONTROLLER_USB | BUZZ_CONTROLLER | DUALSHOCK4_CONTROLLER_USB)
+#define SONY_FF_SUPPORT (SIXAXIS_CONTROLLER_USB | DUALSHOCK4_CONTROLLER_USB)
#define MAX_LEDS 4
@@ -499,6 +500,7 @@
__u8 right;
#endif
+ __u8 worker_initialized;
__u8 led_state[MAX_LEDS];
__u8 led_count;
};
@@ -993,22 +995,11 @@
return input_ff_create_memless(input_dev, NULL, sony_play_effect);
}
-static void sony_destroy_ff(struct hid_device *hdev)
-{
- struct sony_sc *sc = hid_get_drvdata(hdev);
-
- cancel_work_sync(&sc->state_worker);
-}
-
#else
static int sony_init_ff(struct hid_device *hdev)
{
return 0;
}
-
-static void sony_destroy_ff(struct hid_device *hdev)
-{
-}
#endif
static int sony_set_output_report(struct sony_sc *sc, int req_id, int req_size)
@@ -1077,6 +1068,8 @@
if (sc->quirks & SIXAXIS_CONTROLLER_USB) {
hdev->hid_output_raw_report = sixaxis_usb_output_raw_report;
ret = sixaxis_set_operational_usb(hdev);
+
+ sc->worker_initialized = 1;
INIT_WORK(&sc->state_worker, sixaxis_state_worker);
}
else if (sc->quirks & SIXAXIS_CONTROLLER_BT)
@@ -1087,6 +1080,7 @@
if (ret < 0)
goto err_stop;
+ sc->worker_initialized = 1;
INIT_WORK(&sc->state_worker, dualshock4_state_worker);
} else {
ret = 0;
@@ -1101,9 +1095,11 @@
goto err_stop;
}
- ret = sony_init_ff(hdev);
- if (ret < 0)
- goto err_stop;
+ if (sc->quirks & SONY_FF_SUPPORT) {
+ ret = sony_init_ff(hdev);
+ if (ret < 0)
+ goto err_stop;
+ }
return 0;
err_stop:
@@ -1120,7 +1116,8 @@
if (sc->quirks & SONY_LED_SUPPORT)
sony_leds_remove(hdev);
- sony_destroy_ff(hdev);
+ if (sc->worker_initialized)
+ cancel_work_sync(&sc->state_worker);
hid_hw_stop(hdev);
}
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index cb0137b..ab24ce2 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -320,13 +320,13 @@
hid_hw_close(hidraw->hid);
wake_up_interruptible(&hidraw->wait);
}
+ device_destroy(hidraw_class,
+ MKDEV(hidraw_major, hidraw->minor));
} else {
--hidraw->open;
}
if (!hidraw->open) {
if (!hidraw->exist) {
- device_destroy(hidraw_class,
- MKDEV(hidraw_major, hidraw->minor));
hidraw_table[hidraw->minor] = NULL;
kfree(hidraw);
} else {
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 4e4cc28..4cdb3a1 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -495,10 +495,6 @@
FILTER_TRACE_FN,
};
-#define EVENT_STORAGE_SIZE 128
-extern struct mutex event_storage_mutex;
-extern char event_storage[EVENT_STORAGE_SIZE];
-
extern int trace_event_raw_init(struct ftrace_event_call *call);
extern int trace_define_field(struct ftrace_event_call *call, const char *type,
const char *name, int offset, int size,
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 1da693d..b66c211 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -250,8 +250,7 @@
int (*rmap_one)(struct page *page, struct vm_area_struct *vma,
unsigned long addr, void *arg);
int (*done)(struct page *page);
- int (*file_nonlinear)(struct page *, struct address_space *,
- struct vm_area_struct *vma);
+ int (*file_nonlinear)(struct page *, struct address_space *, void *arg);
struct anon_vma *(*anon_lock)(struct page *page);
bool (*invalid_vma)(struct vm_area_struct *vma, void *arg);
};
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 1a8b28d..1ee19a2 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -310,15 +310,12 @@
#undef __array
#define __array(type, item, len) \
do { \
- mutex_lock(&event_storage_mutex); \
+ char *type_str = #type"["__stringify(len)"]"; \
BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \
- snprintf(event_storage, sizeof(event_storage), \
- "%s[%d]", #type, len); \
- ret = trace_define_field(event_call, event_storage, #item, \
+ ret = trace_define_field(event_call, type_str, #item, \
offsetof(typeof(field), item), \
sizeof(field.item), \
is_signed_type(type), FILTER_OTHER); \
- mutex_unlock(&event_storage_mutex); \
if (ret) \
return ret; \
} while (0);
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 105f273..0c753dd 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -4112,17 +4112,17 @@
err = percpu_ref_init(&css->refcnt, css_release);
if (err)
- goto err_free;
+ goto err_free_css;
init_css(css, ss, cgrp);
err = cgroup_populate_dir(cgrp, 1 << ss->subsys_id);
if (err)
- goto err_free;
+ goto err_free_percpu_ref;
err = online_css(css);
if (err)
- goto err_free;
+ goto err_clear_dir;
dget(cgrp->dentry);
css_get(css->parent);
@@ -4138,8 +4138,11 @@
return 0;
-err_free:
+err_clear_dir:
+ cgroup_clear_dir(css->cgroup, 1 << css->ss->subsys_id);
+err_free_percpu_ref:
percpu_ref_cancel_init(&css->refcnt);
+err_free_css:
ss->css_free(css);
return err;
}
diff --git a/kernel/futex.c b/kernel/futex.c
index 44a1261..08ec814 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -234,6 +234,7 @@
* waiting on a futex.
*/
struct futex_hash_bucket {
+ atomic_t waiters;
spinlock_t lock;
struct plist_head chain;
} ____cacheline_aligned_in_smp;
@@ -253,22 +254,37 @@
smp_mb__after_atomic_inc();
}
-static inline bool hb_waiters_pending(struct futex_hash_bucket *hb)
+/*
+ * Reflects a new waiter being added to the waitqueue.
+ */
+static inline void hb_waiters_inc(struct futex_hash_bucket *hb)
{
#ifdef CONFIG_SMP
+ atomic_inc(&hb->waiters);
/*
- * Tasks trying to enter the critical region are most likely
- * potential waiters that will be added to the plist. Ensure
- * that wakers won't miss to-be-slept tasks in the window between
- * the wait call and the actual plist_add.
+ * Full barrier (A), see the ordering comment above.
*/
- if (spin_is_locked(&hb->lock))
- return true;
- smp_rmb(); /* Make sure we check the lock state first */
+ smp_mb__after_atomic_inc();
+#endif
+}
- return !plist_head_empty(&hb->chain);
+/*
+ * Reflects a waiter being removed from the waitqueue by wakeup
+ * paths.
+ */
+static inline void hb_waiters_dec(struct futex_hash_bucket *hb)
+{
+#ifdef CONFIG_SMP
+ atomic_dec(&hb->waiters);
+#endif
+}
+
+static inline int hb_waiters_pending(struct futex_hash_bucket *hb)
+{
+#ifdef CONFIG_SMP
+ return atomic_read(&hb->waiters);
#else
- return true;
+ return 1;
#endif
}
@@ -954,6 +970,7 @@
hb = container_of(q->lock_ptr, struct futex_hash_bucket, lock);
plist_del(&q->list, &hb->chain);
+ hb_waiters_dec(hb);
}
/*
@@ -1257,7 +1274,9 @@
*/
if (likely(&hb1->chain != &hb2->chain)) {
plist_del(&q->list, &hb1->chain);
+ hb_waiters_dec(hb1);
plist_add(&q->list, &hb2->chain);
+ hb_waiters_inc(hb2);
q->lock_ptr = &hb2->lock;
}
get_futex_key_refs(key2);
@@ -1600,6 +1619,17 @@
struct futex_hash_bucket *hb;
hb = hash_futex(&q->key);
+
+ /*
+ * Increment the counter before taking the lock so that
+ * a potential waker won't miss a to-be-slept task that is
+ * waiting for the spinlock. This is safe as all queue_lock()
+ * users end up calling queue_me(). Similarly, for housekeeping,
+ * decrement the counter at queue_unlock() when some error has
+ * occurred and we don't end up adding the task to the list.
+ */
+ hb_waiters_inc(hb);
+
q->lock_ptr = &hb->lock;
spin_lock(&hb->lock); /* implies MB (A) */
@@ -1611,6 +1641,7 @@
__releases(&hb->lock)
{
spin_unlock(&hb->lock);
+ hb_waiters_dec(hb);
}
/**
@@ -2342,6 +2373,7 @@
* Unqueue the futex_q and determine which it was.
*/
plist_del(&q->list, &hb->chain);
+ hb_waiters_dec(hb);
/* Handle spurious wakeups gracefully */
ret = -EWOULDBLOCK;
@@ -2875,6 +2907,7 @@
futex_cmpxchg_enabled = 1;
for (i = 0; i < futex_hashsize; i++) {
+ atomic_set(&futex_queues[i].waiters, 0);
plist_head_init(&futex_queues[i].chain);
spin_lock_init(&futex_queues[i].lock);
}
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index f3989ce..7b16d40 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -27,12 +27,6 @@
DEFINE_MUTEX(event_mutex);
-DEFINE_MUTEX(event_storage_mutex);
-EXPORT_SYMBOL_GPL(event_storage_mutex);
-
-char event_storage[EVENT_STORAGE_SIZE];
-EXPORT_SYMBOL_GPL(event_storage);
-
LIST_HEAD(ftrace_events);
static LIST_HEAD(ftrace_common_fields);
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 7c3e3e7..ee0a509 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -95,15 +95,12 @@
#undef __array
#define __array(type, item, len) \
do { \
+ char *type_str = #type"["__stringify(len)"]"; \
BUILD_BUG_ON(len > MAX_FILTER_STR_VAL); \
- mutex_lock(&event_storage_mutex); \
- snprintf(event_storage, sizeof(event_storage), \
- "%s[%d]", #type, len); \
- ret = trace_define_field(event_call, event_storage, #item, \
+ ret = trace_define_field(event_call, type_str, #item, \
offsetof(typeof(field), item), \
sizeof(field.item), \
is_signed_type(type), filter_type); \
- mutex_unlock(&event_storage_mutex); \
if (ret) \
return ret; \
} while (0);
diff --git a/mm/fremap.c b/mm/fremap.c
index bbc4d66..34feba6 100644
--- a/mm/fremap.c
+++ b/mm/fremap.c
@@ -23,28 +23,44 @@
#include "internal.h"
+static int mm_counter(struct page *page)
+{
+ return PageAnon(page) ? MM_ANONPAGES : MM_FILEPAGES;
+}
+
static void zap_pte(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long addr, pte_t *ptep)
{
pte_t pte = *ptep;
+ struct page *page;
+ swp_entry_t entry;
if (pte_present(pte)) {
- struct page *page;
-
flush_cache_page(vma, addr, pte_pfn(pte));
pte = ptep_clear_flush(vma, addr, ptep);
page = vm_normal_page(vma, addr, pte);
if (page) {
if (pte_dirty(pte))
set_page_dirty(page);
+ update_hiwater_rss(mm);
+ dec_mm_counter(mm, mm_counter(page));
page_remove_rmap(page);
page_cache_release(page);
- update_hiwater_rss(mm);
- dec_mm_counter(mm, MM_FILEPAGES);
}
- } else {
- if (!pte_file(pte))
- free_swap_and_cache(pte_to_swp_entry(pte));
+ } else { /* zap_pte() is not called when pte_none() */
+ if (!pte_file(pte)) {
+ update_hiwater_rss(mm);
+ entry = pte_to_swp_entry(pte);
+ if (non_swap_entry(entry)) {
+ if (is_migration_entry(entry)) {
+ page = migration_entry_to_page(entry);
+ dec_mm_counter(mm, mm_counter(page));
+ }
+ } else {
+ free_swap_and_cache(entry);
+ dec_mm_counter(mm, MM_SWAPENTS);
+ }
+ }
pte_clear_not_present_full(mm, addr, ptep, 0);
}
}
diff --git a/mm/migrate.c b/mm/migrate.c
index b494fdb..bed4880 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -178,6 +178,37 @@
}
/*
+ * Congratulations to trinity for discovering this bug.
+ * mm/fremap.c's remap_file_pages() accepts any range within a single vma to
+ * convert that vma to VM_NONLINEAR; and generic_file_remap_pages() will then
+ * replace the specified range by file ptes throughout (maybe populated after).
+ * If page migration finds a page within that range, while it's still located
+ * by vma_interval_tree rather than lost to i_mmap_nonlinear list, no problem:
+ * zap_pte() clears the temporary migration entry before mmap_sem is dropped.
+ * But if the migrating page is in a part of the vma outside the range to be
+ * remapped, then it will not be cleared, and remove_migration_ptes() needs to
+ * deal with it. Fortunately, this part of the vma is of course still linear,
+ * so we just need to use linear location on the nonlinear list.
+ */
+static int remove_linear_migration_ptes_from_nonlinear(struct page *page,
+ struct address_space *mapping, void *arg)
+{
+ struct vm_area_struct *vma;
+ /* hugetlbfs does not support remap_pages, so no huge pgoff worries */
+ pgoff_t pgoff = page->index << (PAGE_CACHE_SHIFT - PAGE_SHIFT);
+ unsigned long addr;
+
+ list_for_each_entry(vma,
+ &mapping->i_mmap_nonlinear, shared.nonlinear) {
+
+ addr = vma->vm_start + ((pgoff - vma->vm_pgoff) << PAGE_SHIFT);
+ if (addr >= vma->vm_start && addr < vma->vm_end)
+ remove_migration_pte(page, vma, addr, arg);
+ }
+ return SWAP_AGAIN;
+}
+
+/*
* Get rid of all migration entries and replace them by
* references to the indicated page.
*/
@@ -186,6 +217,7 @@
struct rmap_walk_control rwc = {
.rmap_one = remove_migration_pte,
.arg = old,
+ .file_nonlinear = remove_linear_migration_ptes_from_nonlinear,
};
rmap_walk(new, &rwc);
diff --git a/mm/rmap.c b/mm/rmap.c
index d9d4231..8fc049f 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1360,8 +1360,9 @@
}
static int try_to_unmap_nonlinear(struct page *page,
- struct address_space *mapping, struct vm_area_struct *vma)
+ struct address_space *mapping, void *arg)
{
+ struct vm_area_struct *vma;
int ret = SWAP_AGAIN;
unsigned long cursor;
unsigned long max_nl_cursor = 0;
@@ -1663,7 +1664,7 @@
if (list_empty(&mapping->i_mmap_nonlinear))
goto done;
- ret = rwc->file_nonlinear(page, mapping, vma);
+ ret = rwc->file_nonlinear(page, mapping, rwc->arg);
done:
mutex_unlock(&mapping->i_mmap_mutex);
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 7a20897..7403f34 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -133,7 +133,7 @@
kfree(data);
}
snd_card_unref(compr->card);
- return 0;
+ return ret;
}
static int snd_compr_free(struct inode *inode, struct file *f)
diff --git a/sound/pci/oxygen/xonar_dg.c b/sound/pci/oxygen/xonar_dg.c
index ed6f199..4cf3200 100644
--- a/sound/pci/oxygen/xonar_dg.c
+++ b/sound/pci/oxygen/xonar_dg.c
@@ -238,11 +238,21 @@
cs4245_write_spi(chip, CS4245_MCLK_FREQ);
}
+static inline unsigned int shift_bits(unsigned int value,
+ unsigned int shift_from,
+ unsigned int shift_to,
+ unsigned int mask)
+{
+ if (shift_from < shift_to)
+ return (value << (shift_to - shift_from)) & mask;
+ else
+ return (value >> (shift_from - shift_to)) & mask;
+}
+
unsigned int adjust_dg_dac_routing(struct oxygen *chip,
unsigned int play_routing)
{
struct dg *data = chip->model_data;
- unsigned int routing = 0;
switch (data->output_sel) {
case PLAYBACK_DST_HP:
@@ -252,15 +262,23 @@
OXYGEN_PLAY_MUTE67, OXYGEN_PLAY_MUTE_MASK);
break;
case PLAYBACK_DST_MULTICH:
- routing = (0 << OXYGEN_PLAY_DAC0_SOURCE_SHIFT) |
- (2 << OXYGEN_PLAY_DAC1_SOURCE_SHIFT) |
- (1 << OXYGEN_PLAY_DAC2_SOURCE_SHIFT) |
- (0 << OXYGEN_PLAY_DAC3_SOURCE_SHIFT);
oxygen_write8_masked(chip, OXYGEN_PLAY_ROUTING,
OXYGEN_PLAY_MUTE01, OXYGEN_PLAY_MUTE_MASK);
break;
}
- return routing;
+ return (play_routing & OXYGEN_PLAY_DAC0_SOURCE_MASK) |
+ shift_bits(play_routing,
+ OXYGEN_PLAY_DAC2_SOURCE_SHIFT,
+ OXYGEN_PLAY_DAC1_SOURCE_SHIFT,
+ OXYGEN_PLAY_DAC1_SOURCE_MASK) |
+ shift_bits(play_routing,
+ OXYGEN_PLAY_DAC1_SOURCE_SHIFT,
+ OXYGEN_PLAY_DAC2_SOURCE_SHIFT,
+ OXYGEN_PLAY_DAC2_SOURCE_MASK) |
+ shift_bits(play_routing,
+ OXYGEN_PLAY_DAC0_SOURCE_SHIFT,
+ OXYGEN_PLAY_DAC3_SOURCE_SHIFT,
+ OXYGEN_PLAY_DAC3_SOURCE_MASK);
}
void dump_cs4245_registers(struct oxygen *chip,