| From 83bea32ac7ed37bbda58733de61fc9369513f9f9 Mon Sep 17 00:00:00 2001 |
| From: Chanho Park <chanho61.park@samsung.com> |
| Date: Thu, 7 Apr 2022 18:11:28 +0900 |
| Subject: arm64: Add part number for Arm Cortex-A78AE |
| |
| From: Chanho Park <chanho61.park@samsung.com> |
| |
| 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> |
| --- |
| arch/arm64/include/asm/cputype.h | 2 ++ |
| arch/arm64/kernel/proton-pack.c | 1 + |
| 2 files changed, 3 insertions(+) |
| |
| --- 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) |
| --- 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), |
