[PATCH AUTOSEL 5.10 29/30] arm64: Add part number for Arm Cortex-A78AE

[Sasha Levin]

From: Chanho Park <chanho61.park at samsung.com>

[ Upstream commit 83bea32ac7ed37bbda58733de61fc9369513f9f9 ]

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 at arm.com>
Cc: Mark Rutland <mark.rutland at arm.com>
Cc: Will Deacon <will at kernel.org>
Cc: James Morse <james.morse at arm.com>
Signed-off-by: Chanho Park <chanho61.park at samsung.com>
Link: https://lore.kernel.org/r/20220407091128.8700-1-chanho61.park@samsung.com
Signed-off-by: Will Deacon <will at kernel.org>
Signed-off-by: Sasha Levin <sashal at kernel.org>
---
 arch/arm64/include/asm/cputype.h | 2 ++
 arch/arm64/kernel/proton-pack.c  | 1 +
 2 files changed, 3 insertions(+)

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 3dd489b62b29..6ae53d8cd576 100644
--- a/arch/arm64/kernel/proton-pack.c
+++ b/arch/arm64/kernel/proton-pack.c
@@ -861,6 +861,7 @@ 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),
-- 
2.35.1