From: Stratos Karafotis <stratosk@semaphore.gr>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Viresh Kumar <viresh.kumar@linaro.org>,
Dirk Brandewie <dirk.j.brandewie@intel.com>
Cc: "cpufreq@vger.kernel.org" <cpufreq@vger.kernel.org>,
"linux-pm@vger.kernel.org" <linux-pm@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject: [PATCH] cpufreq: intel_pstate: Remove sample parameter in intel_pstate_calc_busy
Date: Tue, 29 Apr 2014 20:53:49 +0300 [thread overview]
Message-ID: <535FE72D.2020402@semaphore.gr> (raw)
Since commit d37e2b7644 ("intel_pstate: remove unneeded sample buffers")
we use only one sample. So, there is no need to pass the sample
pointer to intel_pstate_calc_busy. Instead, get the pointer from
cpudata. Also, remove the unused SAMPLE_COUNT macro.
While at it, reformat the first line in this function.
Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
---
drivers/cpufreq/intel_pstate.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 95b3958..8192ff1 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -32,8 +32,6 @@
#include <asm/msr.h>
#include <asm/cpu_device_id.h>
-#define SAMPLE_COUNT 3
-
#define BYT_RATIOS 0x66a
#define BYT_VIDS 0x66b
#define BYT_TURBO_RATIOS 0x66c
@@ -553,14 +551,13 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
intel_pstate_set_pstate(cpu, cpu->pstate.max_pstate);
}
-static inline void intel_pstate_calc_busy(struct cpudata *cpu,
- struct sample *sample)
+static inline void intel_pstate_calc_busy(struct cpudata *cpu)
{
+ struct sample *sample = &cpu->sample;
int32_t core_pct;
int32_t c0_pct;
- core_pct = div_fp(int_tofp((sample->aperf)),
- int_tofp((sample->mperf)));
+ core_pct = div_fp(int_tofp(sample->aperf), int_tofp(sample->mperf));
core_pct = mul_fp(core_pct, int_tofp(100));
FP_ROUNDUP(core_pct);
@@ -595,7 +592,7 @@ static inline void intel_pstate_sample(struct cpudata *cpu)
cpu->sample.mperf -= cpu->prev_mperf;
cpu->sample.tsc -= cpu->prev_tsc;
- intel_pstate_calc_busy(cpu, &cpu->sample);
+ intel_pstate_calc_busy(cpu);
cpu->prev_aperf = aperf;
cpu->prev_mperf = mperf;
--
1.9.0
next reply other threads:[~2014-04-29 17:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-29 17:53 Stratos Karafotis [this message]
2014-04-30 4:06 ` [PATCH] cpufreq: intel_pstate: Remove sample parameter in intel_pstate_calc_busy Viresh Kumar
2014-05-01 16:04 ` Dirk Brandewie
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