From: Marc Zyngier Date: Wed, 1 Feb 2017 14:38:46 +0000 (+0000) Subject: arm64: cpu_errata: Allow an erratum to be match for all revisions of a core X-Git-Tag: C0P2-H0.0--20200415~108 X-Git-Url: https://git.somdevices.com/?a=commitdiff_plain;h=e5faf27bac9e31d805b9178495a83771c1c101d8;p=linux.git 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 Acked-by: Mark Rutland Acked-by: Daniel Lezcano Reviewed-by: Suzuki K Poulose Signed-off-by: Marc Zyngier Signed-off-by: Alex Shi --- 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) || \