arm64: Add ARM64_WORKAROUND_1319367 for all A57 and A72 versions

Rework the EL2 vector hardening that is only selected for A57 and A72
so that the table can also be used for ARM64_WORKAROUND_1319367.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>

arch/arm64/include/asm/cpucaps.h

@@ -52,7 +52,8 @@
 #define ARM64_HAS_IRQ_PRIO_MASKING		42
 #define ARM64_HAS_DCPODP			43
 #define ARM64_WORKAROUND_1463225		44
+#define ARM64_WORKAROUND_1319367		45
 
-#define ARM64_NCAPS				45
+#define ARM64_NCAPS				46
 
 #endif /* __ASM_CPUCAPS_H */

arch/arm64/kernel/cpu_errata.c

@@ -623,9 +623,9 @@ check_branch_predictor(const struct arm64_cpu_capabilities *entry, int scope)
 	return (need_wa > 0);
 }
 
-#ifdef CONFIG_HARDEN_EL2_VECTORS
+#if defined(CONFIG_HARDEN_EL2_VECTORS) || defined(CONFIG_ARM64_ERRATUM_1319367)
 
-static const struct midr_range arm64_harden_el2_vectors[] = {
+static const struct midr_range ca57_a72[] = {
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A57),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A72),
 	{},
@@ -819,7 +819,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 	{
 		.desc = "EL2 vector hardening",
 		.capability = ARM64_HARDEN_EL2_VECTORS,
-		ERRATA_MIDR_RANGE_LIST(arm64_harden_el2_vectors),
+		ERRATA_MIDR_RANGE_LIST(ca57_a72),
 	},
 #endif
 	{
@@ -851,6 +851,13 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 		.type = ARM64_CPUCAP_LOCAL_CPU_ERRATUM,
 		.matches = has_cortex_a76_erratum_1463225,
 	},
+#endif
+#ifdef CONFIG_ARM64_ERRATUM_1319367
+	{
+		.desc = "ARM erratum 1319367",
+		.capability = ARM64_WORKAROUND_1319367,
+		ERRATA_MIDR_RANGE_LIST(ca57_a72),
+	},
 #endif
 	{
 	}