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authorDaniel Lezcano <daniel.lezcano@linaro.org>2019-08-02 20:34:23 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-09-03 12:33:29 +0300
commit82e430a6df7f0b5972c7fe717faffea823c6b84a (patch)
tree464c1a59817af384666f36669b3e0d5187be2ffe /include/linux/cpu.h
parent97d3eb9da84cae0548359b0aecb8619faad003b7 (diff)
downloadlinux-82e430a6df7f0b5972c7fe717faffea823c6b84a.tar.xz
cpuidle: play_idle: Increase the resolution to usec
The play_idle resolution is 1ms. The intel_powerclamp bases the idle duration on jiffies. The idle injection API is also using msec based duration but has no user yet. Unfortunately, msec based time does not fit well when we want to inject idle cycle precisely with shallow idle state. In order to set the scene for the incoming idle injection user, move the precision up to usec when calling play_idle. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/cpu.h')
-rw-r--r--include/linux/cpu.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index fcb1386bb0d4..88dc0c653925 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -179,7 +179,7 @@ void arch_cpu_idle_dead(void);
int cpu_report_state(int cpu);
int cpu_check_up_prepare(int cpu);
void cpu_set_state_online(int cpu);
-void play_idle(unsigned long duration_ms);
+void play_idle(unsigned long duration_us);
#ifdef CONFIG_HOTPLUG_CPU
bool cpu_wait_death(unsigned int cpu, int seconds);