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authorRickard Andersson <rickard.andersson@stericsson.com>2012-12-27 15:55:38 +0100
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-02-02 00:01:13 +0100
commit2abfa876f1117b0ab45f191fb1f82c41b1cbc8fe (patch)
tree929f7c181cead27bc5c1d320c53ba0e99a9f0544 /drivers/cpufreq/cpufreq_governor.h
parentLinux 3.8-rc6 (diff)
downloadlinux-2abfa876f1117b0ab45f191fb1f82c41b1cbc8fe.tar.xz
linux-2abfa876f1117b0ab45f191fb1f82c41b1cbc8fe.zip
cpufreq: handle SW coordinated CPUs
This patch fixes a bug that occurred when we had load on a secondary CPU and the primary CPU was sleeping. Only one sampling timer was spawned and it was spawned as a deferred timer on the primary CPU, so when a secondary CPU had a change in load this was not detected by the cpufreq governor (both ondemand and conservative). This patch make sure that deferred timers are run on all CPUs in the case of software controlled CPUs that run on the same frequency. Signed-off-by: Rickard Andersson <rickard.andersson@stericsson.com> Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq_governor.h')
-rw-r--r--drivers/cpufreq/cpufreq_governor.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index f6616540c53d..5bf6fb8023ef 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -171,6 +171,7 @@ static inline int delay_for_sampling_rate(unsigned int sampling_rate)
u64 get_cpu_idle_time(unsigned int cpu, u64 *wall);
void dbs_check_cpu(struct dbs_data *dbs_data, int cpu);
+bool dbs_sw_coordinated_cpus(struct cpu_dbs_common_info *cdbs);
int cpufreq_governor_dbs(struct dbs_data *dbs_data,
struct cpufreq_policy *policy, unsigned int event);
#endif /* _CPUFREQ_GOVERNER_H */