From: Pavel Machek <pavel@ucw.cz>
To: mingo@redhat.com, peterz@infradead.org,
linux-kernel@vger.kernel.org, cooloney@gmail.com,
rpurdie@rpsys.net, j.anaszewski@samsung.com,
linux-leds@vger.kernel.org
Subject: CPU LED trigger: add hooks to generic code so that it works on x86
Date: Wed, 27 May 2015 08:57:12 +0200 [thread overview]
Message-ID: <20150527065712.GA4415@amd> (raw)
CPU LED trigger hooks are currently hidden in arm-specific code, which
means that this trigger only works on arm. Add it to the generic
code, so that it works on x86, too.
Signed-off-by: Pavel Machek <pavel@ucw.cz>
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index fefcb1f..087acd6 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -8,6 +8,7 @@
#include <linux/mm.h>
#include <linux/stackprotector.h>
#include <linux/suspend.h>
+#include <linux/leds.h>
#include <asm/tlb.h>
@@ -232,6 +233,7 @@ static void cpu_idle_loop(void)
}
local_irq_disable();
+ ledtrig_cpu(CPU_LED_IDLE_START);
arch_cpu_idle_enter();
/*
@@ -249,6 +251,7 @@ static void cpu_idle_loop(void)
cpuidle_idle_call();
arch_cpu_idle_exit();
+ ledtrig_cpu(CPU_LED_IDLE_END);
}
/*
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next reply other threads:[~2015-05-27 6:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-27 6:57 Pavel Machek [this message]
2015-05-27 7:43 ` CPU LED trigger: add hooks to generic code so that it works on x86 Peter Zijlstra
2015-05-27 7:47 ` Pavel Machek
2015-05-27 8:08 ` Peter Zijlstra
2015-05-27 8:47 ` Pavel Machek
2015-05-27 12:17 ` Peter Zijlstra
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