linux-kernel - Re: [PATCH 1/2] csky: Enable generic clockevent broadcast

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Message-ID: <4e57c0f2-c718-01c1-032a-8e4934496b17@linaro.org>
Date:   Wed, 17 Mar 2021 10:14:47 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     guoren@...nel.org, arnd@...db.de
Cc:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linux-csky@...r.kernel.org, linux-riscv@...ts.infradead.org,
        Guo Ren <guoren@...ux.alibaba.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: Re: [PATCH 1/2] csky: Enable generic clockevent broadcast

On 07/03/2021 03:24, guoren@...nel.org wrote:
> From: Guo Ren <guoren@...ux.alibaba.com>
> 
> When percpu-timers are stopped by deep power saving mode, we need
> system timer help to broadcast IPI_TIMER.
> 
> This is first introduced by broken x86 hardware, where the local apic
> timer stops in C3 state. But many other architectures(powerpc, mips,
> arm, hexagon, openrisc, sh) have supported the infrastructure to
> deal with Power Management issues.
> 
> Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Thomas Gleixner <tglx@...utronix.de>
> Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
> ---

Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>


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