[PATCH 5.3 181/193] arm64: Brahma-B53 is SSB and spectre v2 safe

From: Florian Fainelli f.fainelli@gmail.com

[ 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 --- arch/arm64/kernel/cpu_errata.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index d9da4201ba858..799d62ef7a9bd 100644 --- 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 */ } };