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Date: Wed, 25 Nov 2020 15:44:08 +0000 From: Will Deacon <will@...nel.org> To: Sumit Garg <sumit.garg@...aro.org>, alexandru.elisei@....com Cc: catalin.marinas@....com, kernel-team@...roid.com, Will Deacon <will@...nel.org>, tglx@...utronix.de, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, mingo@...hat.com, mark.rutland@....com, peterz@...radead.org, dianders@...omium.org, acme@...nel.org, swboyd@...omium.org, namhyung@...nel.org, alexander.shishkin@...ux.intel.com, jolsa@...hat.com, julien.thierry.kdev@...il.com, daniel.thompson@...aro.org Subject: Re: [PATCH v4] arm64: Enable perf events based hard lockup detector On Wed, 7 Oct 2020 14:21:43 +0530, Sumit Garg wrote: > With the recent feature added to enable perf events to use pseudo NMIs > as interrupts on platforms which support GICv3 or later, its now been > possible to enable hard lockup detector (or NMI watchdog) on arm64 > platforms. So enable corresponding support. > > One thing to note here is that normally lockup detector is initialized > just after the early initcalls but PMU on arm64 comes up much later as > device_initcall(). So we need to re-initialize lockup detection once > PMU has been initialized. Applied to will (for-next/perf), thanks! [1/1] arm64: Enable perf events based hard lockup detector https://git.kernel.org/will/c/367c820ef080 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev
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