arm64/mm: Add remaining ID_AA64MMFR0_PARANGE_ macros
authorAnshuman Khandual <anshuman.khandual@arm.com>
Thu, 12 Aug 2021 05:09:50 +0000 (10:39 +0530)
committerMarc Zyngier <maz@kernel.org>
Wed, 18 Aug 2021 08:26:06 +0000 (09:26 +0100)
commit504c6295b998effa682089747a96d7bb5933d4db
tree337e30f3779bc398704d0347893a9ece47508280
parent5e5df9571c319fb107d7a523cc96fcc99961ee70
arm64/mm: Add remaining ID_AA64MMFR0_PARANGE_ macros

Currently there are macros only for 48 and 52 bits parange value extracted
from the ID_AA64MMFR0.PARANGE field. This change completes the enumeration
and updates the helper id_aa64mmfr0_parange_to_phys_shift(). While here it
also defines ARM64_MIN_PARANGE_BITS as the absolute minimum shift value PA
range which could be supported on a given platform.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.cs.columbia.edu
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1628744994-16623-2-git-send-email-anshuman.khandual@arm.com
arch/arm64/include/asm/cpufeature.h
arch/arm64/include/asm/sysreg.h