arm64: Brahma-B53 is SSB and spectre v2 safe

[ Upstream commit e059770cb1cdfbcbe3f1748f76005861cc79dd1a ]

Add the Brahma-B53 CPU (all versions) to the whitelists of CPUs for the
SSB and spectre v2 mitigations.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index d9da4201ba8586fc5b3676b1fa56464b90b21244..799d62ef7a9bde84b7e7e2f59a8226a65d1873c8 100644 (file)
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -489,6 +489,7 @@ static const struct midr_range arm64_ssb_cpus[] = {
        MIDR_ALL_VERSIONS(MIDR_CORTEX_A35),
        MIDR_ALL_VERSIONS(MIDR_CORTEX_A53),
        MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
+       MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53),
        {},
 };
 
@@ -573,6 +574,7 @@ static const struct midr_range spectre_v2_safe_list[] = {
        MIDR_ALL_VERSIONS(MIDR_CORTEX_A35),
        MIDR_ALL_VERSIONS(MIDR_CORTEX_A53),
        MIDR_ALL_VERSIONS(MIDR_CORTEX_A55),
+       MIDR_ALL_VERSIONS(MIDR_BRAHMA_B53),
        { /* sentinel */ }
 };