From: sboyd@codeaurora•org (Stephen Boyd)
To: linux-arm-kernel@lists•infradead.org
Subject: [RFC v3 04/12] ARM: cpuidle: Add runtime PM support for CPUs
Date: Fri, 4 Mar 2016 10:03:35 -0800 [thread overview]
Message-ID: <20160304180335.GA16665@codeaurora.org> (raw)
In-Reply-To: <1456866931-37851-6-git-send-email-lina.iyer@linaro.org>
On 03/01, Lina Iyer wrote:
> @@ -46,12 +49,20 @@ static int arm_enter_idle_state(struct cpuidle_device *dev,
> ret = cpu_pm_enter();
> if (!ret) {
> /*
> + * Call runtime PM suspend on our device
> + * Notify RCU to pay attention to critical sections
> + * called from within runtime PM.
> + */
I was thinking something more along the lines of
/*
* RCU is idle at this point but runtime PM uses
* tracepoints which use RCU so we must resume RCU
* while we use runtime PM here.
*/
> + RCU_NONIDLE(pm_runtime_put_sync_suspend(cpu_dev));
> +
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-03-04 18:03 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-01 21:15 [RFC v3 00/12] PM: SoC idle support using PM domains Lina Iyer
2016-03-01 21:15 ` [BUG FIX] PM / cpu_domains: Check for NULL callbacks Lina Iyer
2016-03-01 21:17 ` Lina Iyer
2016-03-01 21:15 ` [RFC v3 01/12] PM / Domains: Abstract genpd locking Lina Iyer
2016-03-04 10:09 ` Ulf Hansson
2016-03-01 21:15 ` [RFC v3 02/12] PM / Domains: Support IRQ safe PM domains Lina Iyer
2016-03-03 0:57 ` Kevin Hilman
2016-03-01 21:15 ` [RFC v3 03/12] PM / cpu_domains: Setup PM domains for CPUs/clusters Lina Iyer
2016-03-03 1:18 ` Kevin Hilman
2016-03-01 21:15 ` [RFC v3 04/12] ARM: cpuidle: Add runtime PM support for CPUs Lina Iyer
2016-03-04 18:03 ` Stephen Boyd [this message]
2016-03-01 21:15 ` [RFC v3 05/12] timer: Export next wake up of a CPU Lina Iyer
2016-03-01 21:15 ` [RFC v3 06/12] PM / cpu_domains: Record CPUs that are part of the domain Lina Iyer
2016-03-01 21:15 ` [RFC v3 07/12] PM / cpu_domains: Add PM Domain governor for CPUs Lina Iyer
2016-03-01 21:15 ` [RFC v3 08/12] Documentation / cpu_domains: Describe CPU PM domains setup and governor Lina Iyer
2016-03-01 21:15 ` [RFC v3 09/12] drivers: firmware: psci: Allow OS Initiated suspend mode Lina Iyer
2016-03-01 21:15 ` [RFC v3 10/12] ARM64: psci: Support cluster idle states for OS-Initiated Lina Iyer
2016-03-01 21:15 ` [RFC v3 11/12] ARM64: dts: Add PSCI cpuidle support for MSM8916 Lina Iyer
2016-03-21 3:50 ` Andy Gross
2016-03-01 21:15 ` [RFC v3 12/12] ARM64: dts: Define CPU power domain " Lina Iyer
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