linux-kernel - AMU extension v1 support for cortex A76, A77, A78 CPUs

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Message-ID: <2cc9dd44-0b4b-94a8-155a-7a2446a1b892@codeaurora.org>
Date:   Fri, 20 Nov 2020 10:00:14 +0530
From:   Neeraj Upadhyay <neeraju@...eaurora.org>
To:     ionela.voinescu@....com, valentin.schneider@....com
Cc:     mark.rutland@....com, Marc Zyngier <maz@...nel.org>,
        suzuki.poulose@....com, Will Deacon <will@...nel.org>,
        catalin.marinas@....com, linux-arm-kernel@...ts.infradead.org,
        lkml <linux-kernel@...r.kernel.org>,
        MSM <linux-arm-msm@...r.kernel.org>
Subject: AMU extension v1 support for cortex A76, A77, A78 CPUs

Hi,

For ARM cortex A76, A77, A78 cores (which as per TRM, support AMU) 
AA64PFR0[47:44] field is not set, and AMU does not get enabled for them.
Can you please provide support for these CPUs in cpufeature.c?



Thanks
Neeraj

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