arm64: tlb: Detect the ARMv8.4 TLBI RANGE feature
authorZhenyu Ye <yezhenyu2@huawei.com>
Wed, 15 Jul 2020 07:19:43 +0000 (15:19 +0800)
committerCatalin Marinas <catalin.marinas@arm.com>
Wed, 15 Jul 2020 14:57:30 +0000 (15:57 +0100)
commitb620ba54547cd0f98e35c1be102eec2cc25fda5d
tree5057a6279d2dd70d506c1297dcc279a9e651ce65
parent61c11656b67b0a30f702f240aabe81fd93e702ac
arm64: tlb: Detect the ARMv8.4 TLBI RANGE feature

ARMv8.4-TLBI provides TLBI invalidation instruction that apply to a
range of input addresses. This patch detect this feature.

Signed-off-by: Zhenyu Ye <yezhenyu2@huawei.com>
Link: https://lore.kernel.org/r/20200715071945.897-2-yezhenyu2@huawei.com
[catalin.marinas@arm.com: some renaming for consistency]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
arch/arm64/include/asm/cpucaps.h
arch/arm64/include/asm/sysreg.h
arch/arm64/kernel/cpufeature.c