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Merge branch 'pm-cpufreq'

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* pm-cpufreq:
  intel_pstate: fix PCT_TO_HWP macro
  intel_pstate: Fix user input of min/max to legal policy region
  cpufreq-dt: add suspend frequency support
  cpufreq: allow cpufreq_generic_suspend() to work without suspend frequency
  cpufreq: Use __func__ to print function's name
  cpufreq: staticize cpufreq_cpu_get_raw()
  cpufreq: Add ARM_MT8173_CPUFREQ dependency on THERMAL
  cpufreq: dt: Tolerance applies on both sides of target voltage
  cpufreq: dt: Print error on failing to mark OPPs as shared
  cpufreq: dt: Check OPP count before marking them shared
This commit is contained in:
Rafael J. Wysocki
2015-09-11 15:37:25 +02:00
parent 7c976664d5 74da56ce5c
commit 3e66c4b860
4 changed files with 59 additions and 28 deletions
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38
drivers/cpufreq/intel_pstate.c
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@@ -260,24 +260,31 @@ static inline void update_turbo_state(void)
cpu->pstate.max_pstate == cpu->pstate.turbo_pstate);
}
#define PCT_TO_HWP(x) (x * 255 / 100)
static void intel_pstate_hwp_set(void)
{
int min, max, cpu;
u64 value, freq;
int min, hw_min, max, hw_max, cpu, range, adj_range;
u64 value, cap;
rdmsrl(MSR_HWP_CAPABILITIES, cap);
hw_min = HWP_LOWEST_PERF(cap);
hw_max = HWP_HIGHEST_PERF(cap);
range = hw_max - hw_min;
get_online_cpus();
for_each_online_cpu(cpu) {
rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value);
min = PCT_TO_HWP(limits.min_perf_pct);
adj_range = limits.min_perf_pct * range / 100;
min = hw_min + adj_range;
value &= ~HWP_MIN_PERF(~0L);
value |= HWP_MIN_PERF(min);
max = PCT_TO_HWP(limits.max_perf_pct);
adj_range = limits.max_perf_pct * range / 100;
max = hw_min + adj_range;
if (limits.no_turbo) {
rdmsrl( MSR_HWP_CAPABILITIES, freq);
max = HWP_GUARANTEED_PERF(freq);
hw_max = HWP_GUARANTEED_PERF(cap);
if (hw_max < max)
max = hw_max;
}
value &= ~HWP_MAX_PERF(~0L);
@@ -423,6 +430,8 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b,
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_pct = max(limits.min_policy_pct, limits.max_perf_pct);
limits.max_perf_pct = max(limits.min_perf_pct, limits.max_perf_pct);
limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100));
if (hwp_active)
@@ -442,6 +451,8 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b,
limits.min_sysfs_pct = clamp_t(int, input, 0 , 100);
limits.min_perf_pct = max(limits.min_policy_pct, limits.min_sysfs_pct);
limits.min_perf_pct = min(limits.max_policy_pct, limits.min_perf_pct);
limits.min_perf_pct = min(limits.max_perf_pct, limits.min_perf_pct);
limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(100));
if (hwp_active)
@@ -989,12 +1000,19 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
limits.min_policy_pct = (policy->min * 100) / policy->cpuinfo.max_freq;
limits.min_policy_pct = clamp_t(int, limits.min_policy_pct, 0 , 100);
limits.min_perf_pct = max(limits.min_policy_pct, limits.min_sysfs_pct);
limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(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);
/* Normalize user input to [min_policy_pct, max_policy_pct] */
limits.min_perf_pct = max(limits.min_policy_pct, limits.min_sysfs_pct);
limits.min_perf_pct = min(limits.max_policy_pct, limits.min_perf_pct);
limits.max_perf_pct = min(limits.max_policy_pct, limits.max_sysfs_pct);
limits.max_perf_pct = max(limits.min_policy_pct, limits.max_perf_pct);
/* Make sure min_perf_pct <= max_perf_pct */
limits.min_perf_pct = min(limits.max_perf_pct, limits.min_perf_pct);
limits.min_perf = div_fp(int_tofp(limits.min_perf_pct), int_tofp(100));
limits.max_perf = div_fp(int_tofp(limits.max_perf_pct), int_tofp(100));
if (hwp_active)