Merge branch 'pm-fixes'
* pm-fixes:
PM / hibernate: Correct documentation
PM / Documentation: remove inaccurate suspend/hibernate transition lantency statement
PM: Documentation update for freeze state
PM: Avoid calling kfree() under spinlock in dev_pm_put_subsys_data()
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 00d2efd..4f4e741 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -28,6 +28,8 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/types.h>
+#include <linux/dmi.h>
+#include <linux/delay.h>
#ifdef CONFIG_ACPI_PROCFS_POWER
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
@@ -74,6 +76,8 @@
#endif
static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
+static int ac_sleep_before_get_state_ms;
+
static struct acpi_driver acpi_ac_driver = {
.name = "ac",
.class = ACPI_AC_CLASS,
@@ -252,6 +256,16 @@
case ACPI_AC_NOTIFY_STATUS:
case ACPI_NOTIFY_BUS_CHECK:
case ACPI_NOTIFY_DEVICE_CHECK:
+ /*
+ * A buggy BIOS may notify AC first and then sleep for
+ * a specific time before doing actual operations in the
+ * EC event handler (_Qxx). This will cause the AC state
+ * reported by the ACPI event to be incorrect, so wait for a
+ * specific time for the EC event handler to make progress.
+ */
+ if (ac_sleep_before_get_state_ms > 0)
+ msleep(ac_sleep_before_get_state_ms);
+
acpi_ac_get_state(ac);
acpi_bus_generate_proc_event(device, event, (u32) ac->state);
acpi_bus_generate_netlink_event(device->pnp.device_class,
@@ -264,6 +278,24 @@
return;
}
+static int thinkpad_e530_quirk(const struct dmi_system_id *d)
+{
+ ac_sleep_before_get_state_ms = 1000;
+ return 0;
+}
+
+static struct dmi_system_id ac_dmi_table[] = {
+ {
+ .callback = thinkpad_e530_quirk,
+ .ident = "thinkpad e530",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "32597CG"),
+ },
+ },
+ {},
+};
+
static int acpi_ac_add(struct acpi_device *device)
{
int result = 0;
@@ -312,6 +344,7 @@
kfree(ac);
}
+ dmi_check_system(ac_dmi_table);
return result;
}
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d45b287..edc0081 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -223,7 +223,7 @@
static int ec_poll(struct acpi_ec *ec)
{
unsigned long flags;
- int repeat = 2; /* number of command restarts */
+ int repeat = 5; /* number of command restarts */
while (repeat--) {
unsigned long delay = jiffies +
msecs_to_jiffies(ec_delay);
@@ -241,8 +241,6 @@
}
advance_transaction(ec, acpi_ec_read_status(ec));
} while (time_before(jiffies, delay));
- if (acpi_ec_read_status(ec) & ACPI_EC_FLAG_IBF)
- break;
pr_debug(PREFIX "controller reset, restart transaction\n");
spin_lock_irqsave(&ec->lock, flags);
start_transaction(ec);
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index bec717f..c266cdc 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -95,9 +95,6 @@
};
MODULE_DEVICE_TABLE(acpi, processor_device_ids);
-static SIMPLE_DEV_PM_OPS(acpi_processor_pm,
- acpi_processor_suspend, acpi_processor_resume);
-
static struct acpi_driver acpi_processor_driver = {
.name = "processor",
.class = ACPI_PROCESSOR_CLASS,
@@ -107,7 +104,6 @@
.remove = acpi_processor_remove,
.notify = acpi_processor_notify,
},
- .drv.pm = &acpi_processor_pm,
};
#define INSTALL_NOTIFY_HANDLER 1
@@ -934,6 +930,8 @@
if (result < 0)
return result;
+ acpi_processor_syscore_init();
+
acpi_processor_install_hotplug_notify();
acpi_thermal_cpufreq_init();
@@ -956,6 +954,8 @@
acpi_processor_uninstall_hotplug_notify();
+ acpi_processor_syscore_exit();
+
acpi_bus_unregister_driver(&acpi_processor_driver);
return;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f0df2c9..eb133c7 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -34,6 +34,7 @@
#include <linux/sched.h> /* need_resched() */
#include <linux/clockchips.h>
#include <linux/cpuidle.h>
+#include <linux/syscore_ops.h>
/*
* Include the apic definitions for x86 to have the APIC timer related defines
@@ -210,33 +211,41 @@
#endif
+#ifdef CONFIG_PM_SLEEP
static u32 saved_bm_rld;
-static void acpi_idle_bm_rld_save(void)
+int acpi_processor_suspend(void)
{
acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &saved_bm_rld);
+ return 0;
}
-static void acpi_idle_bm_rld_restore(void)
+
+void acpi_processor_resume(void)
{
u32 resumed_bm_rld;
acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld);
+ if (resumed_bm_rld == saved_bm_rld)
+ return;
- if (resumed_bm_rld != saved_bm_rld)
- acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld);
+ acpi_write_bit_register(ACPI_BITREG_BUS_MASTER_RLD, saved_bm_rld);
}
-int acpi_processor_suspend(struct device *dev)
+static struct syscore_ops acpi_processor_syscore_ops = {
+ .suspend = acpi_processor_suspend,
+ .resume = acpi_processor_resume,
+};
+
+void acpi_processor_syscore_init(void)
{
- acpi_idle_bm_rld_save();
- return 0;
+ register_syscore_ops(&acpi_processor_syscore_ops);
}
-int acpi_processor_resume(struct device *dev)
+void acpi_processor_syscore_exit(void)
{
- acpi_idle_bm_rld_restore();
- return 0;
+ unregister_syscore_ops(&acpi_processor_syscore_ops);
}
+#endif /* CONFIG_PM_SLEEP */
#if defined(CONFIG_X86)
static void tsc_check_state(int state)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index c3932d0..5b32e15 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -456,6 +456,14 @@
DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
},
},
+ {
+ .callback = video_ignore_initial_backlight,
+ .ident = "HP 1000 Notebook PC",
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
+ },
+ },
{}
};
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index a1488f5..534fcb8 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -47,7 +47,7 @@
choice
prompt "Default CPUFreq governor"
- default CPU_FREQ_DEFAULT_GOV_USERSPACE if CPU_FREQ_SA1100 || CPU_FREQ_SA1110
+ default CPU_FREQ_DEFAULT_GOV_USERSPACE if ARM_SA1100_CPUFREQ || ARM_SA1110_CPUFREQ
default CPU_FREQ_DEFAULT_GOV_PERFORMANCE
help
This option sets which CPUFreq governor shall be loaded at
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index f3af18b..6e57543 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -3,16 +3,17 @@
#
config ARM_BIG_LITTLE_CPUFREQ
- tristate
- depends on ARM_CPU_TOPOLOGY
+ tristate "Generic ARM big LITTLE CPUfreq driver"
+ depends on ARM_CPU_TOPOLOGY && PM_OPP && HAVE_CLK
+ help
+ This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
config ARM_DT_BL_CPUFREQ
- tristate "Generic ARM big LITTLE CPUfreq driver probed via DT"
- select ARM_BIG_LITTLE_CPUFREQ
- depends on OF && HAVE_CLK
+ tristate "Generic probing via DT for ARM big LITTLE CPUfreq driver"
+ depends on ARM_BIG_LITTLE_CPUFREQ && OF
help
- This enables the Generic CPUfreq driver for ARM big.LITTLE platform.
- This gets frequency tables from DT.
+ This enables probing via DT for Generic CPUfreq driver for ARM
+ big.LITTLE platform. This gets frequency tables from DT.
config ARM_EXYNOS_CPUFREQ
bool "SAMSUNG EXYNOS SoCs"
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index dbdf677..5d7f53f 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -40,11 +40,6 @@
static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS];
static atomic_t cluster_usage[MAX_CLUSTERS] = {ATOMIC_INIT(0), ATOMIC_INIT(0)};
-static int cpu_to_cluster(int cpu)
-{
- return topology_physical_package_id(cpu);
-}
-
static unsigned int bL_cpufreq_get(unsigned int cpu)
{
u32 cur_cluster = cpu_to_cluster(cpu);
@@ -192,7 +187,7 @@
cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
- dev_info(cpu_dev, "CPU %d initialized\n", policy->cpu);
+ dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu);
return 0;
}
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
index 70f18fc..79b2ce1 100644
--- a/drivers/cpufreq/arm_big_little.h
+++ b/drivers/cpufreq/arm_big_little.h
@@ -34,6 +34,11 @@
int (*init_opp_table)(struct device *cpu_dev);
};
+static inline int cpu_to_cluster(int cpu)
+{
+ return topology_physical_package_id(cpu);
+}
+
int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);
void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops);
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
index 44be311..173ed05 100644
--- a/drivers/cpufreq/arm_big_little_dt.c
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -66,8 +66,8 @@
parent = of_find_node_by_path("/cpus");
if (!parent) {
- pr_err("failed to find OF /cpus\n");
- return -ENOENT;
+ pr_info("Failed to find OF /cpus. Use CPUFREQ_ETERNAL transition latency\n");
+ return CPUFREQ_ETERNAL;
}
for_each_child_of_node(parent, np) {
@@ -78,10 +78,11 @@
of_node_put(np);
of_node_put(parent);
- return 0;
+ return transition_latency;
}
- return -ENODEV;
+ pr_info("clock-latency isn't found, use CPUFREQ_ETERNAL transition latency\n");
+ return CPUFREQ_ETERNAL;
}
static struct cpufreq_arm_bL_ops dt_bL_ops = {
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 3ab8294..a64eb8b 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -189,12 +189,29 @@
if (!np) {
pr_err("failed to find cpu0 node\n");
- return -ENOENT;
+ ret = -ENOENT;
+ goto out_put_parent;
}
cpu_dev = &pdev->dev;
cpu_dev->of_node = np;
+ cpu_reg = devm_regulator_get(cpu_dev, "cpu0");
+ if (IS_ERR(cpu_reg)) {
+ /*
+ * If cpu0 regulator supply node is present, but regulator is
+ * not yet registered, we should try defering probe.
+ */
+ if (PTR_ERR(cpu_reg) == -EPROBE_DEFER) {
+ dev_err(cpu_dev, "cpu0 regulator not ready, retry\n");
+ ret = -EPROBE_DEFER;
+ goto out_put_node;
+ }
+ pr_warn("failed to get cpu0 regulator: %ld\n",
+ PTR_ERR(cpu_reg));
+ cpu_reg = NULL;
+ }
+
cpu_clk = devm_clk_get(cpu_dev, NULL);
if (IS_ERR(cpu_clk)) {
ret = PTR_ERR(cpu_clk);
@@ -202,12 +219,6 @@
goto out_put_node;
}
- cpu_reg = devm_regulator_get(cpu_dev, "cpu0");
- if (IS_ERR(cpu_reg)) {
- pr_warn("failed to get cpu0 regulator\n");
- cpu_reg = NULL;
- }
-
ret = of_init_opp_table(cpu_dev);
if (ret) {
pr_err("failed to init OPP table: %d\n", ret);
@@ -264,6 +275,8 @@
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.c b/drivers/cpufreq/cpufreq.c
index 1b8a48e..b7acfd1 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1075,14 +1075,14 @@
__func__, cpu_dev->id, cpu);
}
+ if ((cpus == 1) && (cpufreq_driver->target))
+ __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT);
+
pr_debug("%s: removing link, cpu: %d\n", __func__, cpu);
cpufreq_cpu_put(data);
/* 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;
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 443442d..5af40ad 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -255,6 +255,7 @@
if (have_governor_per_policy()) {
WARN_ON(dbs_data);
} else if (dbs_data) {
+ dbs_data->usage_count++;
policy->governor_data = dbs_data;
return 0;
}
@@ -266,6 +267,7 @@
}
dbs_data->cdata = cdata;
+ dbs_data->usage_count = 1;
rc = cdata->init(dbs_data);
if (rc) {
pr_err("%s: POLICY_INIT: init() failed\n", __func__);
@@ -294,7 +296,8 @@
set_sampling_rate(dbs_data, max(dbs_data->min_sampling_rate,
latency * LATENCY_MULTIPLIER));
- if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+ if ((cdata->governor == GOV_CONSERVATIVE) &&
+ (!policy->governor->initialized)) {
struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
cpufreq_register_notifier(cs_ops->notifier_block,
@@ -306,12 +309,12 @@
return 0;
case CPUFREQ_GOV_POLICY_EXIT:
- if ((policy->governor->initialized == 1) ||
- have_governor_per_policy()) {
+ if (!--dbs_data->usage_count) {
sysfs_remove_group(get_governor_parent_kobj(policy),
get_sysfs_attr(dbs_data));
- if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
+ if ((dbs_data->cdata->governor == GOV_CONSERVATIVE) &&
+ (policy->governor->initialized == 1)) {
struct cs_ops *cs_ops = dbs_data->cdata->gov_ops;
cpufreq_unregister_notifier(cs_ops->notifier_block,
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 8ac3353..e16a961 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -211,6 +211,7 @@
struct dbs_data {
struct common_dbs_data *cdata;
unsigned int min_sampling_rate;
+ int usage_count;
void *tuners;
/* dbs_mutex protects dbs_enable in governor start/stop */
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index b0ffef9..4b9bb5d 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -547,7 +547,6 @@
tuners->io_is_busy = should_io_be_busy();
dbs_data->tuners = tuners;
- pr_info("%s: tuners %p\n", __func__, tuners);
mutex_init(&dbs_data->mutex);
return 0;
}
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index cc3a8e6..9c36ace 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -48,12 +48,7 @@
}
struct sample {
- ktime_t start_time;
- ktime_t end_time;
int core_pct_busy;
- int pstate_pct_busy;
- u64 duration_us;
- u64 idletime_us;
u64 aperf;
u64 mperf;
int freq;
@@ -86,13 +81,9 @@
struct pstate_adjust_policy *pstate_policy;
struct pstate_data pstate;
struct _pid pid;
- struct _pid idle_pid;
int min_pstate_count;
- int idle_mode;
- ktime_t prev_sample;
- u64 prev_idle_time_us;
u64 prev_aperf;
u64 prev_mperf;
int sample_ptr;
@@ -124,6 +115,8 @@
int min_perf_pct;
int32_t max_perf;
int32_t min_perf;
+ int max_policy_pct;
+ int max_sysfs_pct;
};
static struct perf_limits limits = {
@@ -132,6 +125,8 @@
.max_perf = int_tofp(1),
.min_perf_pct = 0,
.min_perf = 0,
+ .max_policy_pct = 100,
+ .max_sysfs_pct = 100,
};
static inline void pid_reset(struct _pid *pid, int setpoint, int busy,
@@ -202,19 +197,6 @@
0);
}
-static inline void intel_pstate_idle_pid_reset(struct cpudata *cpu)
-{
- pid_p_gain_set(&cpu->idle_pid, cpu->pstate_policy->p_gain_pct);
- pid_d_gain_set(&cpu->idle_pid, cpu->pstate_policy->d_gain_pct);
- pid_i_gain_set(&cpu->idle_pid, cpu->pstate_policy->i_gain_pct);
-
- pid_reset(&cpu->idle_pid,
- 75,
- 50,
- cpu->pstate_policy->deadband,
- 0);
-}
-
static inline void intel_pstate_reset_all_pid(void)
{
unsigned int cpu;
@@ -302,7 +284,8 @@
if (ret != 1)
return -EINVAL;
- limits.max_perf_pct = clamp_t(int, input, 0 , 100);
+ limits.max_sysfs_pct = clamp_t(int, input, 0 , 100);
+ limits.max_perf_pct = min(limits.max_policy_pct, limits.max_sysfs_pct);
limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100));
return count;
}
@@ -408,9 +391,8 @@
if (pstate == cpu->pstate.current_pstate)
return;
-#ifndef MODULE
trace_cpu_frequency(pstate * 100000, cpu->cpu);
-#endif
+
cpu->pstate.current_pstate = pstate;
wrmsrl(MSR_IA32_PERF_CTL, pstate << 8);
@@ -450,48 +432,26 @@
struct sample *sample)
{
u64 core_pct;
- sample->pstate_pct_busy = 100 - div64_u64(
- sample->idletime_us * 100,
- sample->duration_us);
core_pct = div64_u64(sample->aperf * 100, sample->mperf);
sample->freq = cpu->pstate.max_pstate * core_pct * 1000;
- sample->core_pct_busy = div_s64((sample->pstate_pct_busy * core_pct),
- 100);
+ sample->core_pct_busy = core_pct;
}
static inline void intel_pstate_sample(struct cpudata *cpu)
{
- ktime_t now;
- u64 idle_time_us;
u64 aperf, mperf;
- now = ktime_get();
- idle_time_us = get_cpu_idle_time_us(cpu->cpu, NULL);
-
rdmsrl(MSR_IA32_APERF, aperf);
rdmsrl(MSR_IA32_MPERF, mperf);
- /* for the first sample, don't actually record a sample, just
- * set the baseline */
- if (cpu->prev_idle_time_us > 0) {
- cpu->sample_ptr = (cpu->sample_ptr + 1) % SAMPLE_COUNT;
- cpu->samples[cpu->sample_ptr].start_time = cpu->prev_sample;
- cpu->samples[cpu->sample_ptr].end_time = now;
- cpu->samples[cpu->sample_ptr].duration_us =
- ktime_us_delta(now, cpu->prev_sample);
- cpu->samples[cpu->sample_ptr].idletime_us =
- idle_time_us - cpu->prev_idle_time_us;
+ cpu->sample_ptr = (cpu->sample_ptr + 1) % SAMPLE_COUNT;
+ cpu->samples[cpu->sample_ptr].aperf = aperf;
+ cpu->samples[cpu->sample_ptr].mperf = mperf;
+ cpu->samples[cpu->sample_ptr].aperf -= cpu->prev_aperf;
+ cpu->samples[cpu->sample_ptr].mperf -= cpu->prev_mperf;
- cpu->samples[cpu->sample_ptr].aperf = aperf;
- cpu->samples[cpu->sample_ptr].mperf = mperf;
- cpu->samples[cpu->sample_ptr].aperf -= cpu->prev_aperf;
- cpu->samples[cpu->sample_ptr].mperf -= cpu->prev_mperf;
+ intel_pstate_calc_busy(cpu, &cpu->samples[cpu->sample_ptr]);
- intel_pstate_calc_busy(cpu, &cpu->samples[cpu->sample_ptr]);
- }
-
- cpu->prev_sample = now;
- cpu->prev_idle_time_us = idle_time_us;
cpu->prev_aperf = aperf;
cpu->prev_mperf = mperf;
}
@@ -505,16 +465,6 @@
mod_timer_pinned(&cpu->timer, jiffies + delay);
}
-static inline void intel_pstate_idle_mode(struct cpudata *cpu)
-{
- cpu->idle_mode = 1;
-}
-
-static inline void intel_pstate_normal_mode(struct cpudata *cpu)
-{
- cpu->idle_mode = 0;
-}
-
static inline int intel_pstate_get_scaled_busy(struct cpudata *cpu)
{
int32_t busy_scaled;
@@ -547,50 +497,21 @@
intel_pstate_pstate_decrease(cpu, steps);
}
-static inline void intel_pstate_adjust_idle_pstate(struct cpudata *cpu)
-{
- int busy_scaled;
- struct _pid *pid;
- int ctl = 0;
- int steps;
-
- pid = &cpu->idle_pid;
-
- busy_scaled = intel_pstate_get_scaled_busy(cpu);
-
- ctl = pid_calc(pid, 100 - busy_scaled);
-
- steps = abs(ctl);
- if (ctl < 0)
- intel_pstate_pstate_decrease(cpu, steps);
- else
- intel_pstate_pstate_increase(cpu, steps);
-
- if (cpu->pstate.current_pstate == cpu->pstate.min_pstate)
- intel_pstate_normal_mode(cpu);
-}
-
static void intel_pstate_timer_func(unsigned long __data)
{
struct cpudata *cpu = (struct cpudata *) __data;
intel_pstate_sample(cpu);
+ intel_pstate_adjust_busy_pstate(cpu);
- if (!cpu->idle_mode)
- intel_pstate_adjust_busy_pstate(cpu);
- else
- intel_pstate_adjust_idle_pstate(cpu);
-
-#if defined(XPERF_FIX)
if (cpu->pstate.current_pstate == cpu->pstate.min_pstate) {
cpu->min_pstate_count++;
if (!(cpu->min_pstate_count % 5)) {
intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);
- intel_pstate_idle_mode(cpu);
}
} else
cpu->min_pstate_count = 0;
-#endif
+
intel_pstate_set_sample_time(cpu);
}
@@ -631,7 +552,6 @@
(unsigned long)cpu;
cpu->timer.expires = jiffies + HZ/100;
intel_pstate_busy_pid_reset(cpu);
- intel_pstate_idle_pid_reset(cpu);
intel_pstate_sample(cpu);
intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);
@@ -675,8 +595,9 @@
limits.min_perf_pct = clamp_t(int, limits.min_perf_pct, 0 , 100);
limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(100));
- limits.max_perf_pct = policy->max * 100 / policy->cpuinfo.max_freq;
- limits.max_perf_pct = clamp_t(int, limits.max_perf_pct, 0 , 100);
+ limits.max_policy_pct = policy->max * 100 / policy->cpuinfo.max_freq;
+ limits.max_policy_pct = clamp_t(int, limits.max_policy_pct, 0 , 100);
+ limits.max_perf_pct = min(limits.max_policy_pct, limits.max_sysfs_pct);
limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100));
return 0;
@@ -788,10 +709,9 @@
pr_info("Intel P-state driver initializing.\n");
- all_cpu_data = vmalloc(sizeof(void *) * num_possible_cpus());
+ all_cpu_data = vzalloc(sizeof(void *) * num_possible_cpus());
if (!all_cpu_data)
return -ENOMEM;
- memset(all_cpu_data, 0, sizeof(void *) * num_possible_cpus());
rc = cpufreq_register_driver(&intel_pstate_driver);
if (rc)
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index d36ea8d..b2644af 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -171,10 +171,6 @@
priv.dev = &pdev->dev;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(&pdev->dev, "Cannot get memory resource\n");
- return -ENODEV;
- }
priv.base = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(priv.base))
return PTR_ERR(priv.base);
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index 5b3d2bd..64b8c76 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -77,7 +77,7 @@
/*
* OSL Initialization and shutdown primitives
*/
-acpi_status __initdata acpi_os_initialize(void);
+acpi_status __init acpi_os_initialize(void);
acpi_status acpi_os_terminate(void);
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index b327b5a..ea69367 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -329,10 +329,16 @@
int acpi_processor_power_exit(struct acpi_processor *pr);
int acpi_processor_cst_has_changed(struct acpi_processor *pr);
int acpi_processor_hotplug(struct acpi_processor *pr);
-int acpi_processor_suspend(struct device *dev);
-int acpi_processor_resume(struct device *dev);
extern struct cpuidle_driver acpi_idle_driver;
+#ifdef CONFIG_PM_SLEEP
+void acpi_processor_syscore_init(void);
+void acpi_processor_syscore_exit(void);
+#else
+static inline void acpi_processor_syscore_init(void) {}
+static inline void acpi_processor_syscore_exit(void) {}
+#endif
+
/* in processor_thermal.c */
int acpi_processor_get_limit_info(struct acpi_processor *pr);
extern const struct thermal_cooling_device_ops processor_cooling_ops;