[PATCH v4 5/7] cpufreq: Move governor symbols to cpufreq.h

Rafael J. Wysocki
2016-03-16T14:59:59Z

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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>
---

New patch.

---
drivers/cpufreq/cpufreq_governor.h | 14 --------------
include/linux/cpufreq.h | 14 ++++++++++++++
2 files changed, 14 insertions(+), 14 deletions(-)

Index: linux-pm/drivers/cpufreq/cpufreq_governor.h
===================================================================
--- linux-pm.orig/drivers/cpufreq/cpufreq_governor.h
+++ linux-pm/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};

Index: linux-pm/include/linux/cpufreq.h
===================================================================
--- linux-pm.orig/include/linux/cpufreq.h
+++ linux-pm/include/linux/cpufreq.h
@@ -426,6 +426,20 @@ static inline unsigned long cpufreq_scal
#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