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| author | Dave Jones <davej@redhat.com> | 2013-03-22 15:05:21 -0400 |
|---|---|---|
| committer | Dave Jones <davej@redhat.com> | 2013-03-22 15:05:21 -0400 |
| commit | 749c877be4752b24934cdd2629fdcc76038998ec (patch) | |
| tree | 09345c9a94848761b0165ed812901cac92d5ad62 /cpufreq-intel-pstate-max-is-in-the-max-variable-who-knew.patch | |
| parent | 60b78be5a968238192c843b00d54de7fbb6e25c2 (diff) | |
| download | kernel-749c877be4752b24934cdd2629fdcc76038998ec.tar.gz kernel-749c877be4752b24934cdd2629fdcc76038998ec.tar.xz kernel-749c877be4752b24934cdd2629fdcc76038998ec.zip | |
Fix calculation of current frequency in intel_pstate driver. (rhbz 923942)
Diffstat (limited to 'cpufreq-intel-pstate-max-is-in-the-max-variable-who-knew.patch')
| -rw-r--r-- | cpufreq-intel-pstate-max-is-in-the-max-variable-who-knew.patch | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cpufreq-intel-pstate-max-is-in-the-max-variable-who-knew.patch b/cpufreq-intel-pstate-max-is-in-the-max-variable-who-knew.patch new file mode 100644 index 000000000..e0d590b21 --- /dev/null +++ b/cpufreq-intel-pstate-max-is-in-the-max-variable-who-knew.patch @@ -0,0 +1,42 @@ +From: dirk.brandewie@gmail.com +To: linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org +Cc: Dirk Brandewie <dirk.brandewie@gmail.com>, + Dirk Brandewie <dirk.j.brandewie@intel.com> +Subject: [PATCH] cpufreq/intel_pstate: Fix calculation of current frequency +Date: Fri, 22 Mar 2013 10:51:05 -0700 +Message-Id: <1363974665-22049-1-git-send-email-dirk.brandewie@gmail.com> + +From: Dirk Brandewie <dirk.brandewie@gmail.com> + +Use the correct pstate value to calculate the effective frequency. + +https://bugzilla.redhat.com/show_bug.cgi?id=923942 +Reported-by: Satish Balay <balay@fastmail.fm> + +Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com> +--- + drivers/cpufreq/intel_pstate.c | 2 +- + 1 files changed, 1 insertions(+), 1 deletions(-) + +diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c +index e84af66..ad72922 100644 +--- a/drivers/cpufreq/intel_pstate.c ++++ b/drivers/cpufreq/intel_pstate.c +@@ -454,7 +454,7 @@ static inline void intel_pstate_calc_busy(struct cpudata *cpu, + sample->idletime_us * 100, + sample->duration_us); + core_pct = div64_u64(sample->aperf * 100, sample->mperf); +- sample->freq = cpu->pstate.turbo_pstate * core_pct * 1000; ++ sample->freq = cpu->pstate.max_pstate * core_pct * 1000; + + sample->core_pct_busy = div_s64((sample->pstate_pct_busy * core_pct), + 100); +-- +1.7.7.6 + +-- +To unsubscribe from this list: send the line "unsubscribe linux-kernel" in +the body of a message to majordomo@vger.kernel.org +More majordomo info at http://vger.kernel.org/majordomo-info.html +Please read the FAQ at http://www.tux.org/lkml/ + |