Messages in this thread Patch in this message | | | From | Marc Zyngier <> | Subject | [PATCH v3 04/18] arm64: cpu_errata: Allow an erratum to be match for all revisions of a core | Date | Tue, 4 Apr 2017 18:18:12 +0100 |
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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: 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> --- arch/arm64/kernel/cpu_errata.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index f6cc67e7626e..2be1d1c05303 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) || \ -- 2.11.0
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