diff options
| author | D Scott Phillips <scott@os.amperecomputing.com> | 2024-08-27 14:17:01 -0700 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-08-30 14:22:12 +0100 |
| commit | db0d8a84348b876df7c4276f0cbce5df3b769f5f (patch) | |
| tree | 4cc658c538ca74f6d125c4f0b35b8012814b3f9b /arch/arm64/kernel | |
| parent | 7c626ce4bae1ac14f60076d00eafe71af30450ba (diff) | |
arm64: errata: Enable the AC03_CPU_38 workaround for ampere1a
The ampere1a cpu is affected by erratum AC04_CPU_10 which is the same
bug as AC03_CPU_38. Add ampere1a to the AC03_CPU_38 workaround midr list.
Cc: <stable@vger.kernel.org>
Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com>
Acked-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240827211701.2216719-1-scott@os.amperecomputing.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/cpu_errata.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index f6b6b4507357..dfefbdf4073a 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -456,6 +456,14 @@ static const struct midr_range erratum_spec_ssbs_list[] = { }; #endif +#ifdef CONFIG_AMPERE_ERRATUM_AC03_CPU_38 +static const struct midr_range erratum_ac03_cpu_38_list[] = { + MIDR_ALL_VERSIONS(MIDR_AMPERE1), + MIDR_ALL_VERSIONS(MIDR_AMPERE1A), + {}, +}; +#endif + const struct arm64_cpu_capabilities arm64_errata[] = { #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE { @@ -772,7 +780,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = { { .desc = "AmpereOne erratum AC03_CPU_38", .capability = ARM64_WORKAROUND_AMPERE_AC03_CPU_38, - ERRATA_MIDR_ALL_VERSIONS(MIDR_AMPERE1), + ERRATA_MIDR_RANGE_LIST(erratum_ac03_cpu_38_list), }, #endif { |