linux-kernel - Re: [PATCH] clocksource/drivers/timer-sun4i: Add CLOCK_EVT_FEAT

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Message-ID: <1d2d879c-4563-4ee0-7bf1-141d5796fe74@linaro.org>
Date:   Fri, 10 Feb 2023 14:37:12 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Yangtao Li <frank.li@...o.com>, tglx@...utronix.de, wens@...e.org,
        jernej.skrabec@...il.com, samuel@...lland.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH] clocksource/drivers/timer-sun4i: Add
 CLOCK_EVT_FEAT_DYNIRQ

On 09/02/2023 05:02, Yangtao Li wrote:
> Add CLOCK_EVT_FEAT_DYNIRQ to allow the IRQ could be runtime set affinity
> to the cores that needs wake up, otherwise saying core0 has to send
> IPI to wakeup core1. With CLOCK_EVT_FEAT_DYNIRQ set, when broadcast
> timer could wake up the cores, IPI is not needed.
> 
> After enabling this feature, especially the scene where cpuidle is
> enabled can benefit.
> 
> Signed-off-by: Yangtao Li <frank.li@...o.com>
> ---

Applied, thanks

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