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From:   Will Deacon <will@kernel.org>
To:     linux-riscv@lists.infradead.org, palmer@dabbelt.com,
        anup@brainfault.org, Eric Lin <eric.lin@sifive.com>,
        atishp@atishpatra.org, atishp@rivosinc.com, mark.rutland@arm.com,
        linux-kernel@vger.kernel.org, paul.walmsley@sifive.com,
        aou@eecs.berkeley.edu, linux-arm-kernel@lists.infradead.org
Cc:     catalin.marinas@arm.com, kernel-team@android.com,
        Will Deacon <will@kernel.org>, greentime.hu@sifive.com
Subject: Re: [PATCH] drivers/perf: riscv_pmu: Add riscv pmu pm notifier
Date:   Wed,  6 Jul 2022 17:50:31 +0100
Message-Id: <165710145080.2497812.7883037173076290820.b4-ty@kernel.org>
In-Reply-To: <20220705091920.27432-1-eric.lin@sifive.com>
References: <20220705091920.27432-1-eric.lin@sifive.com>
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On Tue, 5 Jul 2022 17:19:20 +0800, Eric Lin wrote:
> Currently, when the CPU is doing suspend to ram, we don't
> save pmu counter register and its content will be lost.
> 
> To ensure perf profiling is not affected by suspend to ram,
> this patch is based on arm_pmu CPU_PM notifier and implements riscv
> pmu pm notifier. In the pm notifier, we stop the counter and update
> the counter value before suspend and start the counter after resume.
> 
> [...]

Applied to will (for-next/perf), thanks!

[1/1] drivers/perf: riscv_pmu: Add riscv pmu pm notifier
      https://git.kernel.org/will/c/e9a023f2b73a

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev