From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux PM list <linux-pm@vger.kernel.org>
Cc: Juri Lelli <juri.lelli@arm.com>,
Steve Muckle <steve.muckle@linaro.org>,
ACPI Devel Maling List <linux-acpi@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
Viresh Kumar <viresh.kumar@linaro.org>,
Vincent Guittot <vincent.guittot@linaro.org>,
Michael Turquette <mturquette@baylibre.com>,
Ingo Molnar <mingo@kernel.org>
Subject: [PATCH v6 5/7][Resend] cpufreq: Move governor symbols to cpufreq.h
Date: Tue, 22 Mar 2016 02:51:56 +0100 [thread overview]
Message-ID: <1586499.XsEFRqGpvD@vostro.rjw.lan> (raw)
In-Reply-To: <7262976.zPkLj56ATU@vostro.rjw.lan>
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>
---
This patch was new in v4, no changes since then.
---
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
next prev parent reply other threads:[~2016-03-22 1:56 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-22 1:44 [PATCH v6 0/7] cpufreq: schedutil governor Rafael J. Wysocki
2016-03-22 1:46 ` [PATCH v6 1/7][Resend] cpufreq: sched: Helpers to add and remove update_util hooks Rafael J. Wysocki
2016-03-28 5:31 ` Viresh Kumar
2016-03-31 12:47 ` Peter Zijlstra
2016-03-22 1:47 ` [PATCH v6 2/7][Resend] cpufreq: governor: New data type for management part of dbs_data Rafael J. Wysocki
2016-03-22 1:49 ` [PATCH v6 3/7][Resend] cpufreq: governor: Move abstract gov_attr_set code to seperate file Rafael J. Wysocki
2016-03-22 1:50 ` [PATCH v6 4/7][Resend] cpufreq: Move governor attribute set headers to cpufreq.h Rafael J. Wysocki
2016-03-22 1:51 ` Rafael J. Wysocki [this message]
2016-03-28 5:35 ` [PATCH v6 5/7][Resend] cpufreq: Move governor symbols " Viresh Kumar
2016-03-22 1:53 ` [PATCH v6 6/7][Resend] cpufreq: Support for fast frequency switching Rafael J. Wysocki
2016-03-26 1:12 ` Steve Muckle
2016-03-26 1:46 ` Rafael J. Wysocki
2016-03-27 1:27 ` Rafael J. Wysocki
2016-03-28 16:47 ` Steve Muckle
2016-03-29 12:10 ` Rafael J. Wysocki
2016-03-28 6:27 ` Viresh Kumar
2016-03-29 12:31 ` Rafael J. Wysocki
2016-03-28 7:03 ` Viresh Kumar
2016-03-29 12:10 ` Rafael J. Wysocki
2016-03-29 14:20 ` Viresh Kumar
2016-03-30 1:47 ` [Update][PATCH v7 6/7] " Rafael J. Wysocki
2016-03-30 5:07 ` Viresh Kumar
2016-03-30 11:28 ` Rafael J. Wysocki
2016-03-22 1:54 ` [PATCH v6 7/7][Resend] cpufreq: schedutil: New governor based on scheduler utilization data Rafael J. Wysocki
2016-03-26 1:12 ` Steve Muckle
2016-03-26 2:05 ` Rafael J. Wysocki
2016-03-27 1:36 ` Rafael J. Wysocki
2016-03-28 18:17 ` Steve Muckle
2016-03-29 12:23 ` Rafael J. Wysocki
2016-03-31 12:24 ` Peter Zijlstra
2016-03-31 12:32 ` Rafael J. Wysocki
2016-04-01 18:15 ` Steve Muckle
2016-03-28 9:03 ` Viresh Kumar
2016-03-29 12:58 ` Rafael J. Wysocki
2016-03-30 1:12 ` Rafael J. Wysocki
2016-03-31 12:28 ` Peter Zijlstra
2016-03-30 4:10 ` Viresh Kumar
2016-03-30 2:00 ` [Update][PATCH v7 7/7] " Rafael J. Wysocki
2016-03-30 5:30 ` Viresh Kumar
2016-03-30 11:31 ` Rafael J. Wysocki
2016-03-30 17:05 ` Steve Muckle
2016-03-30 17:24 ` Rafael J. Wysocki
2016-03-31 1:44 ` Steve Muckle
2016-03-31 12:12 ` Peter Zijlstra
2016-03-31 12:18 ` Rafael J. Wysocki
2016-03-31 12:42 ` Peter Zijlstra
2016-03-31 12:48 ` Peter Zijlstra
2016-04-01 17:49 ` Steve Muckle
2016-04-01 19:14 ` Rafael J. Wysocki
2016-04-01 19:23 ` Steve Muckle
2016-04-01 23:06 ` [Update][PATCH v8 " Rafael J. Wysocki
2016-04-02 1:09 ` Steve Muckle
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