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authorChanho Park <chanho61.park@samsung.com>2022-04-07 12:11:28 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-04-13 21:59:20 +0300
commit32dd8b63e6330af86bceec41c45f70ab62707d2e (patch)
tree0b2f9a5af29b2d06d0c5418e058fe8a06816de11
parent159c7db3ccbb2db93d57a268f0c0f48dae1403c8 (diff)
downloadlinux-32dd8b63e6330af86bceec41c45f70ab62707d2e.tar.xz
arm64: Add part number for Arm Cortex-A78AE
commit 83bea32ac7ed37bbda58733de61fc9369513f9f9 upstream. Add the MIDR part number info for the Arm Cortex-A78AE[1] and add it to spectre-BHB affected list[2]. [1]: https://developer.arm.com/Processors/Cortex-A78AE [2]: https://developer.arm.com/Arm%20Security%20Center/Spectre-BHB Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will@kernel.org> Cc: James Morse <james.morse@arm.com> Signed-off-by: Chanho Park <chanho61.park@samsung.com> Link: https://lore.kernel.org/r/20220407091128.8700-1-chanho61.park@samsung.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/arm64/include/asm/cputype.h2
-rw-r--r--arch/arm64/kernel/proton-pack.c1
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index bfbf0c4c7c5e..39f5c1672f48 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -75,6 +75,7 @@
#define ARM_CPU_PART_CORTEX_A77 0xD0D
#define ARM_CPU_PART_NEOVERSE_V1 0xD40
#define ARM_CPU_PART_CORTEX_A78 0xD41
+#define ARM_CPU_PART_CORTEX_A78AE 0xD42
#define ARM_CPU_PART_CORTEX_X1 0xD44
#define ARM_CPU_PART_CORTEX_A510 0xD46
#define ARM_CPU_PART_CORTEX_A710 0xD47
@@ -123,6 +124,7 @@
#define MIDR_CORTEX_A77 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A77)
#define MIDR_NEOVERSE_V1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V1)
#define MIDR_CORTEX_A78 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78)
+#define MIDR_CORTEX_A78AE MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78AE)
#define MIDR_CORTEX_X1 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X1)
#define MIDR_CORTEX_A510 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A510)
#define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
diff --git a/arch/arm64/kernel/proton-pack.c b/arch/arm64/kernel/proton-pack.c
index 5777929d35bf..40be3a7c2c53 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -853,6 +853,7 @@ u8 spectre_bhb_loop_affected(int scope)
if (scope == SCOPE_LOCAL_CPU) {
static const struct midr_range spectre_bhb_k32_list[] = {
MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A78AE),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),