linux-kernel - Re: [PATCH 04/47] arm64/sysreg: Add register fields for ID_AA64DFR2

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Message-ID: <dfef3a11-2fdc-4c33-b6ad-ccebaad476f5@arm.com>
Date: Thu, 3 Oct 2024 09:18:33 +0530
From: Anshuman Khandual <anshuman.khandual@....com>
To: Mark Brown <broonie@...nel.org>
Cc: linux-kernel@...r.kernel.org, kvmarm@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, maz@...nel.org,
 Oliver Upton <oliver.upton@...ux.dev>, James Morse <james.morse@....com>,
 Suzuki K Poulose <suzuki.poulose@....com>,
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>
Subject: Re: [PATCH 04/47] arm64/sysreg: Add register fields for
 ID_AA64DFR2_EL1



On 10/2/24 21:18, Mark Brown wrote:
> On Tue, Oct 01, 2024 at 08:13:13AM +0530, Anshuman Khandual wrote:
> 
>> This adds register fields for ID_AA64DFR2_EL1 as per the definitions based
>> on DDI0601 2024-06.
> 
> DDI0601 2024-09 has now been released...
> 
>> +Sysreg	ID_AA64DFR2_EL1	3	0	0	5	2
>> +Res0	63:8
>> +UnsignedEnum	7:4	BWE
>> +	0b0000	NI
>> +	0b0001	IMP
>> +	0b0010	IMP_WPT
> 
> Could equally name that BWE2 since this is for FEAT_BWE2.  I'm OK either
> way I think, with a slight preference for BWE2 I think.  Either way:

Sure, will change this as s/IMP_WPT/BWE2 instead.

> 
> Reviewed-by: Mark Brown <broonie@...nel.org>