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arm64: cpufeature: add TCR2 cpucap

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This capability indicates if the system supports the TCR2_ELx system register.

Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230606145859.697944-7-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Joey Gouly 2023-06-06 15:58:45 +01:00 committed by Catalin Marinas
parent edc25898f0
commit 2b760046a2
2 changed files with 7 additions and 0 deletions
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6
arch/arm64/kernel/cpufeature.c
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@ -2674,6 +2674,12 @@ static const struct arm64_cpu_capabilities arm64_features[] = {
.cpu_enable = cpu_enable_mops,
ARM64_CPUID_FIELDS(ID_AA64ISAR2_EL1, MOPS, IMP)
},
{
.capability = ARM64_HAS_TCR2,
.type = ARM64_CPUCAP_SYSTEM_FEATURE,
.matches = has_cpuid_feature,
ARM64_CPUID_FIELDS(ID_AA64MMFR3_EL1, TCRX, IMP)
},
{},
};

1
arch/arm64/tools/cpucaps
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@ -44,6 +44,7 @@ HAS_RAS_EXTN
HAS_RNG
HAS_SB
HAS_STAGE2_FWB
HAS_TCR2
HAS_TIDCP1
HAS_TLB_RANGE
HAS_VIRT_HOST_EXTN