arm64: capabilities: Merge duplicate Cavium erratum entries

Merge duplicate entries for a single capability using the midr
range list for Cavium errata 30115 and 27456.

Cc: Andrew Pinski <apinski@cavium.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
Tested-by: Vladimir Murzin <vladimir.murzin@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 2e26375..951ed1a 100644 (file)
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -152,6 +152,7 @@ struct midr_range {
        }
 
 #define MIDR_REV_RANGE(m, v, r_min, r_max) MIDR_RANGE(m, v, r_min, v, r_max)
+#define MIDR_REV(m, v, r) MIDR_RANGE(m, v, r, v, r)
 #define MIDR_ALL_VERSIONS(m) MIDR_RANGE(m, 0, 0, 0xf, 0xf)
 
 static inline bool is_midr_in_range(u32 midr, struct midr_range const *range)

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index dc7ab05..51f70f6 100644 (file)
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -570,6 +570,28 @@ static const struct midr_range arm64_harden_el2_vectors[] = {
 
 #endif
 
+#ifdef CONFIG_CAVIUM_ERRATUM_27456
+static const struct midr_range cavium_erratum_27456_cpus[] = {
+       /* Cavium ThunderX, T88 pass 1.x - 2.1 */
+       MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 1),
+       /* Cavium ThunderX, T81 pass 1.0 */
+       MIDR_REV(MIDR_THUNDERX_81XX, 0, 0),
+       {},
+};
+#endif
+
+#ifdef CONFIG_CAVIUM_ERRATUM_30115
+static const struct midr_range cavium_erratum_30115_cpus[] = {
+       /* Cavium ThunderX, T88 pass 1.x - 2.2 */
+       MIDR_RANGE(MIDR_THUNDERX, 0, 0, 1, 2),
+       /* Cavium ThunderX, T81 pass 1.0 - 1.2 */
+       MIDR_REV_RANGE(MIDR_THUNDERX_81XX, 0, 0, 2),
+       /* Cavium ThunderX, T83 pass 1.0 */
+       MIDR_REV(MIDR_THUNDERX_83XX, 0, 0),
+       {},
+};
+#endif
+
 #ifdef CONFIG_ARM64_WORKAROUND_CLEAN_CACHE
 static const struct midr_range workaround_clean_cache[] = {
 #if    defined(CONFIG_ARM64_ERRATUM_826319) || \
@@ -642,40 +664,16 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
 #endif
 #ifdef CONFIG_CAVIUM_ERRATUM_27456
        {
-       /* Cavium ThunderX, T88 pass 1.x - 2.1 */
                .desc = "Cavium erratum 27456",
                .capability = ARM64_WORKAROUND_CAVIUM_27456,
-               ERRATA_MIDR_RANGE(MIDR_THUNDERX,
-                                 0, 0,
-                                 1, 1),
-       },
-       {
-       /* Cavium ThunderX, T81 pass 1.0 */
-               .desc = "Cavium erratum 27456",
-               .capability = ARM64_WORKAROUND_CAVIUM_27456,
-               ERRATA_MIDR_REV(MIDR_THUNDERX_81XX, 0, 0),
+               ERRATA_MIDR_RANGE_LIST(cavium_erratum_27456_cpus),
        },
 #endif
 #ifdef CONFIG_CAVIUM_ERRATUM_30115
        {
-       /* Cavium ThunderX, T88 pass 1.x - 2.2 */
-               .desc = "Cavium erratum 30115",
-               .capability = ARM64_WORKAROUND_CAVIUM_30115,
-               ERRATA_MIDR_RANGE(MIDR_THUNDERX,
-                                     0, 0,
-                                     1, 2),
-       },
-       {
-       /* Cavium ThunderX, T81 pass 1.0 - 1.2 */
-               .desc = "Cavium erratum 30115",
-               .capability = ARM64_WORKAROUND_CAVIUM_30115,
-               ERRATA_MIDR_REV_RANGE(MIDR_THUNDERX_81XX, 0, 0, 2),
-       },
-       {
-       /* Cavium ThunderX, T83 pass 1.0 */
                .desc = "Cavium erratum 30115",
                .capability = ARM64_WORKAROUND_CAVIUM_30115,
-               ERRATA_MIDR_REV(MIDR_THUNDERX_83XX, 0, 0),
+               ERRATA_MIDR_RANGE_LIST(cavium_erratum_30115_cpus),
        },
 #endif
        {