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| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-02-01 14:38:46 +0000 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2018-02-26 15:43:52 +0800 |
| commit | b8f71cf510ee25d324b2b8d1781bb526e90ab83a (patch) | |
| tree | 0f15db6debbc043add6345a61a75922fe0d0f980 | |
| parent | f4cef5c895674bb1a87d8d88ccd8a9fd0831f95a (diff) | |
arm64: cpu_errata: Allow an erratum to be match for all revisions of a core
commit 06f1494f837 upstream.
Some minor erratum may not be fixed in further revisions of a core,
leading to a situation where the workaround needs to be updated each
time an updated core is released.
Introduce a MIDR_ALL_VERSIONS match helper that will work for all
versions of that MIDR, once and for all.
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Alex Shi <alex.shi@linaro.org>
| -rw-r--r-- | arch/arm64/kernel/cpu_errata.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index b75e917aac46..c66a673cda45 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -53,6 +53,13 @@ static int cpu_enable_trap_ctr_access(void *__unused) .midr_range_min = min, \ .midr_range_max = max +#define MIDR_ALL_VERSIONS(model) \ + .def_scope = SCOPE_LOCAL_CPU, \ + .matches = is_affected_midr_range, \ + .midr_model = model, \ + .midr_range_min = 0, \ + .midr_range_max = (MIDR_VARIANT_MASK | MIDR_REVISION_MASK) + const struct arm64_cpu_capabilities arm64_errata[] = { #if defined(CONFIG_ARM64_ERRATUM_826319) || \ defined(CONFIG_ARM64_ERRATUM_827319) || \ |