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Merge branch 'pm-cpufreq'

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* pm-cpufreq: (22 commits)
  cpufreq: stats: Handle the case when trans_table goes beyond PAGE_SIZE
  cpufreq: arm_big_little: make cpufreq_arm_bL_ops structures const
  cpufreq: arm_big_little: make function arguments and structure pointer const
  cpufreq: pxa: convert to clock API
  cpufreq: speedstep-lib: mark expected switch fall-through
  cpufreq: ti-cpufreq: add missing of_node_put()
  cpufreq: dt: Remove support for Exynos4212 SoCs
  cpufreq: imx6q: Move speed grading check to cpufreq driver
  cpufreq: ti-cpufreq: kfree opp_data when failure
  cpufreq: SPEAr: pr_err() strings should end with newlines
  cpufreq: powernow-k8: pr_err() strings should end with newlines
  cpufreq: dt-platdev: drop socionext,uniphier-ld6b from whitelist
  arm64: wire cpu-invariant accounting support up to the task scheduler
  arm64: wire frequency-invariant accounting support up to the task scheduler
  arm: wire cpu-invariant accounting support up to the task scheduler
  arm: wire frequency-invariant accounting support up to the task scheduler
  drivers base/arch_topology: allow inlining cpu-invariant accounting support
  drivers base/arch_topology: provide frequency-invariant accounting support
  cpufreq: dt: invoke frequency-invariance setter function
  cpufreq: arm_big_little: invoke frequency-invariance setter function
  ...
This commit is contained in:
Rafael J. Wysocki
2017-11-13 01:34:49 +01:00
parent 622ade3a2f f7bc9b209e
commit 60af981c78
22 changed files with 214 additions and 286 deletions
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29
drivers/base/arch_topology.c
View File

@@ -22,14 +22,23 @@
#include <linux/string.h>
#include <linux/sched/topology.h>
static DEFINE_MUTEX(cpu_scale_mutex);
static DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
DEFINE_PER_CPU(unsigned long, freq_scale) = SCHED_CAPACITY_SCALE;
unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)
void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
unsigned long max_freq)
{
return per_cpu(cpu_scale, cpu);
unsigned long scale;
int i;
scale = (cur_freq << SCHED_CAPACITY_SHIFT) / max_freq;
for_each_cpu(i, cpus)
per_cpu(freq_scale, i) = scale;
}
static DEFINE_MUTEX(cpu_scale_mutex);
DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity)
{
per_cpu(cpu_scale, cpu) = capacity;
@@ -212,6 +221,8 @@ static struct notifier_block init_cpu_capacity_notifier __initdata = {
static int __init register_cpufreq_notifier(void)
{
int ret;
/*
* on ACPI-based systems we need to use the default cpu capacity
* until we have the necessary code to parse the cpu capacity, so
@@ -227,8 +238,13 @@ static int __init register_cpufreq_notifier(void)
cpumask_copy(cpus_to_visit, cpu_possible_mask);
return cpufreq_register_notifier(&init_cpu_capacity_notifier,
CPUFREQ_POLICY_NOTIFIER);
ret = cpufreq_register_notifier(&init_cpu_capacity_notifier,
CPUFREQ_POLICY_NOTIFIER);
if (ret)
free_cpumask_var(cpus_to_visit);
return ret;
}
core_initcall(register_cpufreq_notifier);
@@ -236,6 +252,7 @@ static void __init parsing_done_workfn(struct work_struct *work)
{
cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
CPUFREQ_POLICY_NOTIFIER);
free_cpumask_var(cpus_to_visit);
}
#else