[PATCH 5.15 125/136] arm64: Fix match_list for erratum 1286807 on Arm Cortex-A76

Greg Kroah-Hartman
2022-08-29T11:38:17Z

From: Zenghui Yu <yuzenghui@huawei.com>

commit 5e1e087457c94ad7fafbe1cf6f774c6999ee29d4 upstream.

Since commit 51f559d66527 ("arm64: Enable repeat tlbi workaround on KRYO4XX
gold CPUs"), we failed to detect erratum 1286807 on Cortex-A76 because its
entry in arm64_repeat_tlbi_list[] was accidently corrupted by this commit.

Fix this issue by creating a separate entry for Kryo4xx Gold.

Fixes: 51f559d66527 ("arm64: Enable repeat tlbi workaround on KRYO4XX gold CPUs")
Cc: Shreyas K K <quic_shrekk@quicinc.com>
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220809043848.969-1-yuzenghui@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm64/kernel/cpu_errata.c | 2 ++
1 file changed, 2 insertions(+)

--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -208,6 +208,8 @@ static const struct arm64_cpu_capabiliti
#ifdef CONFIG_ARM64_ERRATUM_1286807
{
ERRATA_MIDR_RANGE(MIDR_CORTEX_A76, 0, 0, 3, 0),
+ },
+ {
/* Kryo4xx Gold (rcpe to rfpe) => (r0p0 to r3p0) */
ERRATA_MIDR_RANGE(MIDR_QCOM_KRYO_4XX_GOLD, 0xc, 0xe, 0xf, 0xe),
},