linux-kernel - Re: [PATCH V2] arm64: perf: Retain PMCR.X of PMCR

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Message-ID: <a4e3a53a-ba66-835d-41ab-4ef5a3e1496e@quicinc.com>
Date:   Mon, 9 May 2022 18:51:43 +0530
From:   Srinivasarao Pathipati <quic_c_spathi@...cinc.com>
To:     Will Deacon <will@...nel.org>
CC:     <mark.rutland@....com>, <peterz@...radead.org>, <mingo@...hat.com>,
        <acme@...nel.org>, <alexander.shishkin@...ux.intel.com>,
        <jolsa@...nel.org>, <namhyung@...nel.org>,
        <catalin.marinas@....com>, <linux-arm-kernel@...ts.infradead.org>,
        <linux-perf-users@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2] arm64: perf: Retain PMCR.X of PMCR_EL0 during reset

Thanks Will for reviewing patch

We are seeing issue at early boot up , so we will make this configurable 
with kernel arguments and push

On 5/6/2022 7:42 PM, Will Deacon wrote:
> Changes since V1:
> 	- Preserving only PMCR_X bit as per Robin Murphy's comment