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arm64: cpufeature: Add HAFT to cpucap_is_possible()

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For consistency with other cpucaps, handle the configuration check for
ARM64_HAFT in cpucap_is_possible() rather than this being explicit in
system_supports_haft(). The configuration check will now happen
implicitly as cpus_have_final_cap() uses cpucap_is_possible() via
alternative_has_cap_unlikely().

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20241209155948.2124393-1-mark.rutland@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Mark Rutland 2024-12-09 15:59:48 +00:00 committed by Will Deacon
parent fac04efc5c
commit 264a593da6
2 changed files with 3 additions and 2 deletions
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2
arch/arm64/include/asm/cpucaps.h
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@ -46,6 +46,8 @@ cpucap_is_possible(const unsigned int cap)
return IS_ENABLED(CONFIG_ARM64_POE);
case ARM64_HAS_GCS:
return IS_ENABLED(CONFIG_ARM64_GCS);
case ARM64_HAFT:
return IS_ENABLED(CONFIG_ARM64_HAFT);
case ARM64_UNMAP_KERNEL_AT_EL0:
return IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0);
case ARM64_WORKAROUND_843419:

3
arch/arm64/include/asm/cpufeature.h
View File

@ -852,8 +852,7 @@ static inline bool system_supports_gcs(void)
static inline bool system_supports_haft(void)
{
return IS_ENABLED(CONFIG_ARM64_HAFT) &&
cpus_have_final_cap(ARM64_HAFT);
return cpus_have_final_cap(ARM64_HAFT);
}
static __always_inline bool system_supports_mpam(void)