linux-kernel - Re: [PATCH V2] arm64/cpufeature: Drop open encodings while extracting parange

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Date:   Wed, 20 May 2020 18:54:36 +0100
From:   Will Deacon <will@...nel.org>
To:     Anshuman Khandual <anshuman.khandual@....com>,
        linux-arm-kernel@...ts.infradead.org
Cc:     catalin.marinas@....com, Will Deacon <will@...nel.org>,
        kvmarm@...ts.cs.columbia.edu, linux-kernel@...r.kernel.org,
        Marc Zyngier <maz@...nel.org>
Subject: Re: [PATCH V2] arm64/cpufeature: Drop open encodings while extracting parange

On Wed, 13 May 2020 14:33:34 +0530, Anshuman Khandual wrote:
> Currently there are multiple instances of parange feature width mask open
> encodings while fetching it's value. Even the width mask value (0x7) itself
> is not accurate. It should be (0xf) per ID_AA64MMFR0_EL1.PARange[3:0] as in
> ARM ARM (0487F.a). Replace them with cpuid_feature_extract_unsigned_field()
> which can extract given standard feature (4 bits width i.e 0xf mask) field.
> 
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will@...nel.org>
> Cc: Marc Zyngier <maz@...nel.org>
> Cc: James Morse <james.morse@....com>
> Cc: kvmarm@...ts.cs.columbia.edu
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org

Applied to arm64 (for-next/cpufeature), thanks!

[1/1] arm64/cpufeature: Drop open encodings while extracting parange
      https://git.kernel.org/arm64/c/f73531f0257f

Cheers,
-- 
Will

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