arm64/cpufeature: Introduce ID_MMFR5 CPU register

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This adds basic building blocks required for ID_MMFR5 CPU register which
provides information about the implemented memory model and memory
management support in AArch32 state. This is added per ARM DDI 0487F.a
specification.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: kvmarm@lists.cs.columbia.edu
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org

Suggested-by: Will Deacon <will@kernel.org>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1589881254-10082-7-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Will Deacon <will@kernel.org>

...

This commit is contained in:

Anshuman Khandual 2020-05-19 15:10:43 +05:30 • committed by Will Deacon

parent dd35ec0704

commit 152accf847

5 changed files with 16 additions and 1 deletions

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1

arch/arm64/include/asm/cpu.h

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arch/arm64/include/asm/sysreg.h

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arch/arm64/kernel/cpufeature.c

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arch/arm64/kernel/cpuinfo.c

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arch/arm64/kvm/sys_regs.c

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