Messages in this thread | | | Subject | Re: [PATCH V4 03/17] arm64/cpufeature: Make doublelock a signed feature in ID_AA64DFR0 | From | Suzuki K Poulose <> | Date | Tue, 19 May 2020 11:44:33 +0100 |
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On 05/19/2020 10:40 AM, Anshuman Khandual wrote: > Double lock feature can have the following possible values. > > 0b0000 - Double lock implemented > 0b1111 - Double lock not implemented > > But in case of a conflict the safe value should be 0b1111. Hence this must > be a signed feature instead. Also change FTR_EXACT to FTR_LOWER_SAFE. While > here, fix the erroneous bit width value from 28 to 4. > > Cc: Catalin Marinas <catalin.marinas@arm.com> > Cc: Will Deacon <will@kernel.org> > Cc: Mark Rutland <mark.rutland@arm.com> > Cc: Suzuki K Poulose <suzuki.poulose@arm.com> > Cc: linux-arm-kernel@lists.infradead.org > Cc: linux-kernel@vger.kernel.org > > Suggested-by: Suzuki K Poulose <suzuki.poulose@arm.com> > Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
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