linux-kernel - Re: [PATCH] arm64/sysreg: Update ID_AA64MMFR2

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Message-ID: <20240419134623.GE3148@willie-the-truck>
Date: Fri, 19 Apr 2024 14:46:23 +0100
From: Will Deacon <will@...nel.org>
To: Anshuman Khandual <anshuman.khandual@....com>
Cc: linux-arm-kernel@...ts.infradead.org, catalin.marinas@....com,
	Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64/sysreg: Update ID_AA64MMFR2_EL1 register

On Fri, Apr 19, 2024 at 07:43:25AM +0530, Anshuman Khandual wrote:
> This updates ID_AA64MMFR2_EL1.VARange register fields as per the definition
> based on DDI0601 2024-03.
> 
> Cc: Catalin Marinas <catalin.marinas@....com>
> Cc: Will Deacon <will@...nel.org>
> Cc: Mark Brown <broonie@...nel.org>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-kernel@...r.kernel.org
> Signed-off-by: Anshuman Khandual <anshuman.khandual@....com>
> ---
> This applies on v6.9-rc4
> 
>  arch/arm64/tools/sysreg | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
> index a4c1dd4741a4..6d7213dcbeb5 100644
> --- a/arch/arm64/tools/sysreg
> +++ b/arch/arm64/tools/sysreg
> @@ -1739,6 +1739,7 @@ EndEnum
>  UnsignedEnum	19:16	VARange
>  	0b0000	48
>  	0b0001	52
> +	0b0010	56

Is anybody using this? I'm not sure there's a lot of value in adding
these fields one-by-one for the sake of completeness.

Will