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| author | Andre Przywara <andre.przywara@arm.com> | 2016-06-28 20:07:30 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2016-07-01 13:30:28 +0300 |
| commit | 8e2318521bf5837dae093413f81292b59d49d030 (patch) | |
| tree | fbd32bf6a064e74f2bcf6311b216850111951ce1 /arch/arm64 | |
| parent | 823066d9edcdfe4cedb06216c2b1f91efaf68a87 (diff) | |
| download | linux-8e2318521bf5837dae093413f81292b59d49d030.tar.xz | |
arm64: errata: Calling enable functions for CPU errata too
Currently we call the (optional) enable function for CPU _features_
only. As CPU _errata_ descriptions share the same data structure and
having an enable function is useful for errata as well (for instance
to set bits in SCTLR), lets call it when enumerating erratas too.
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/cpufeature.h | 2 | ||||
| -rw-r--r-- | arch/arm64/kernel/cpu_errata.c | 5 | ||||
| -rw-r--r-- | arch/arm64/kernel/cpufeature.c | 4 |
3 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 224efe730e46..49dd1bd3ea50 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -191,7 +191,9 @@ void __init setup_cpu_features(void); void update_cpu_capabilities(const struct arm64_cpu_capabilities *caps, const char *info); +void enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps); void check_local_cpu_errata(void); +void __init enable_errata_workarounds(void); void verify_local_cpu_errata(void); void verify_local_cpu_capabilities(void); diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index d42789499f17..c2261a7a316e 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -127,3 +127,8 @@ void check_local_cpu_errata(void) { update_cpu_capabilities(arm64_errata, "enabling workaround for"); } + +void __init enable_errata_workarounds(void) +{ + enable_cpu_capabilities(arm64_errata); +} diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 811773d1c1d0..916d27ad79c1 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -913,8 +913,7 @@ void update_cpu_capabilities(const struct arm64_cpu_capabilities *caps, * Run through the enabled capabilities and enable() it on all active * CPUs */ -static void __init -enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps) +void __init enable_cpu_capabilities(const struct arm64_cpu_capabilities *caps) { for (; caps->matches; caps++) if (caps->enable && cpus_have_cap(caps->capability)) @@ -1036,6 +1035,7 @@ void __init setup_cpu_features(void) /* Set the CPU feature capabilies */ setup_feature_capabilities(); + enable_errata_workarounds(); setup_elf_hwcaps(arm64_elf_hwcaps); if (system_supports_32bit_el0()) |