Commit 83bea32a authored by Chanho Park's avatar Chanho Park Committed by Will Deacon
Browse files

arm64: Add part number for Arm Cortex-A78AE 

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: default avatarChanho Park <chanho61.park@samsung.com>
Link: https://lore.kernel.org/r/20220407091128.8700-1-chanho61.park@samsung.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 31a099db

arch/arm64/include/asm/cputype.h

+2 −0
Original line number Diff line number Diff line
@@ -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
@@ -130,6 +131,7 @@ 
#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)

arch/arm64/kernel/proton-pack.c

+1 −0
Original line number Diff line number Diff line
@@ -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),