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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-03-22 02:51:56 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-04-02 01:09:02 +0200
commit379480d8258056bfdbaa65e4d3f024bb5b34b52b (patch)
tree306ae7c944e19e2763dbb54c1187b6db96f1a257
parent66893b6ac9952ec9d9409e9d85eaacf37bba8d15 (diff)
cpufreq: Move governor symbols to cpufreq.h
Move definitions of symbols related to transition latency and sampling rate to include/linux/cpufreq.h so they can be used by (future) goverernors located outside of drivers/cpufreq/. No functional changes. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
-rw-r--r--drivers/cpufreq/cpufreq_governor.h14
-rw-r--r--include/linux/cpufreq.h14
2 files changed, 14 insertions, 14 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 181a43058ece..3e0eb7c54903 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -24,20 +24,6 @@
#include <linux/module.h>
#include <linux/mutex.h>
-/*
- * The polling frequency depends on the capability of the processor. Default
- * polling frequency is 1000 times the transition latency of the processor. The
- * governor will work on any processor with transition latency <= 10ms, using
- * appropriate sampling rate.
- *
- * For CPUs with transition latency > 10ms (mostly drivers with CPUFREQ_ETERNAL)
- * this governor will not work. All times here are in us (micro seconds).
- */
-#define MIN_SAMPLING_RATE_RATIO (2)
-#define LATENCY_MULTIPLIER (1000)
-#define MIN_LATENCY_MULTIPLIER (20)
-#define TRANSITION_LATENCY_LIMIT (10 * 1000 * 1000)
-
/* Ondemand Sampling types */
enum {OD_NORMAL_SAMPLE, OD_SUB_SAMPLE};
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 74f5cfff2b52..2b4f248b8ef1 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -426,6 +426,20 @@ static inline unsigned long cpufreq_scale(unsigned long old, u_int div,
#define CPUFREQ_POLICY_POWERSAVE (1)
#define CPUFREQ_POLICY_PERFORMANCE (2)
+/*
+ * The polling frequency depends on the capability of the processor. Default
+ * polling frequency is 1000 times the transition latency of the processor. The
+ * ondemand governor will work on any processor with transition latency <= 10ms,
+ * using appropriate sampling rate.
+ *
+ * For CPUs with transition latency > 10ms (mostly drivers with CPUFREQ_ETERNAL)
+ * the ondemand governor will not work. All times here are in us (microseconds).
+ */
+#define MIN_SAMPLING_RATE_RATIO (2)
+#define LATENCY_MULTIPLIER (1000)
+#define MIN_LATENCY_MULTIPLIER (20)
+#define TRANSITION_LATENCY_LIMIT (10 * 1000 * 1000)
+
/* Governor Events */
#define CPUFREQ_GOV_START 1
#define CPUFREQ_GOV_STOP 2