From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] clocksource: arch_timer: Set dynamic irq affinity on mmio clockevent
Date: Mon, 6 Jan 2014 14:56:17 -0800 [thread overview]
Message-ID: <1389048977-13502-1-git-send-email-sboyd@codeaurora.org> (raw)
Set the CLOCK_EVT_FEAT_DYNIRQ flag on the memory mapped
clockevent so that we save power by waking up the CPU with the
next event when this timer is used in broadcast mode.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
drivers/clocksource/arm_arch_timer.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 95fb944e15ee..57e823c44d2a 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -277,6 +277,7 @@ static void __arch_timer_setup(unsigned type,
clk->set_next_event = arch_timer_set_next_event_phys;
}
} else {
+ clk->features |= CLOCK_EVT_FEAT_DYNIRQ;
clk->name = "arch_mem_timer";
clk->rating = 400;
clk->cpumask = cpu_all_mask;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
WARNING: multiple messages have this Message-ID (diff)
From: Stephen Boyd <sboyd@codeaurora.org>
To: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH] clocksource: arch_timer: Set dynamic irq affinity on mmio clockevent
Date: Mon, 6 Jan 2014 14:56:17 -0800 [thread overview]
Message-ID: <1389048977-13502-1-git-send-email-sboyd@codeaurora.org> (raw)
Set the CLOCK_EVT_FEAT_DYNIRQ flag on the memory mapped
clockevent so that we save power by waking up the CPU with the
next event when this timer is used in broadcast mode.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
drivers/clocksource/arm_arch_timer.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 95fb944e15ee..57e823c44d2a 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -277,6 +277,7 @@ static void __arch_timer_setup(unsigned type,
clk->set_next_event = arch_timer_set_next_event_phys;
}
} else {
+ clk->features |= CLOCK_EVT_FEAT_DYNIRQ;
clk->name = "arch_mem_timer";
clk->rating = 400;
clk->cpumask = cpu_all_mask;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation
next reply other threads:[~2014-01-06 22:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-06 22:56 Stephen Boyd [this message]
2014-01-06 22:56 ` [PATCH] clocksource: arch_timer: Set dynamic irq affinity on mmio clockevent Stephen Boyd
2014-01-14 8:40 ` Daniel Lezcano
2014-01-14 8:40 ` Daniel Lezcano
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