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| author | Zhang Rui <rui.zhang@intel.com> | 2021-10-26 10:32:42 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-10-26 16:00:50 +0200 |
| commit | c72bcf0ab87a92634e58af62e89af0f40dfd0b88 (patch) | |
| tree | 33e79614df6be591885fe39c07d6fd3885bee668 /drivers/cpufreq/intel_pstate.c | |
| parent | cpufreq: Fix typo in cpufreq.h (diff) | |
| download | linux-c72bcf0ab87a92634e58af62e89af0f40dfd0b88.tar.xz linux-c72bcf0ab87a92634e58af62e89af0f40dfd0b88.zip | |
cpufreq: intel_pstate: Fix cpu->pstate.turbo_freq initialization
Fix a problem in active mode that cpu->pstate.turbo_freq is initialized
only if HWP-to-frequency scaling factor is refined.
In passive mode, this problem is not exposed, because
cpu->pstate.turbo_freq is set again, later in
intel_cpufreq_cpu_init()->intel_pstate_get_hwp_cap().
Fixes: eb3693f0521e ("cpufreq: intel_pstate: hybrid: CPU-specific scaling factor")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
| -rw-r--r-- | drivers/cpufreq/intel_pstate.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index facc56dd58dd..349ddbaef796 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -540,7 +540,8 @@ static void intel_pstate_hybrid_hwp_adjust(struct cpudata *cpu) * scaling factor is too high, so recompute it to make the HWP_CAP * highest performance correspond to the maximum turbo frequency. */ - if (turbo_freq < cpu->pstate.turbo_pstate * scaling) { + cpu->pstate.turbo_freq = cpu->pstate.turbo_pstate * scaling; + if (turbo_freq < cpu->pstate.turbo_freq) { cpu->pstate.turbo_freq = turbo_freq; scaling = DIV_ROUND_UP(turbo_freq, cpu->pstate.turbo_pstate); cpu->pstate.scaling = scaling; |