Commit 02a0a046 authored by Mark Rutland's avatar Mark Rutland Committed by Will Deacon
Browse files

arm64: cputype: Add Cortex-X4 definitions 

Add cputype definitions for Cortex-X4. These will be used for errata
detection in subsequent patches.

These values can be found in Table B-249 ("MIDR_EL1 bit descriptions")
in issue 0002-05 of the Cortex-X4 TRM, which can be found at:

  https://developer.arm.com/documentation/102484/0002/?lang=en



Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: James Morse <james.morse@arm.com>
Cc: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20240508081400.235362-3-mark.rutland@arm.com


Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent ebfc726e

arch/arm64/include/asm/cputype.h

+2 −0
Original line number Diff line number Diff line
@@ -86,6 +86,7 @@ 
#define ARM_CPU_PART_CORTEX_X2		0xD48

#define ARM_CPU_PART_NEOVERSE_N2	0xD49

#define ARM_CPU_PART_CORTEX_A78C	0xD4B

#define ARM_CPU_PART_CORTEX_X4		0xD82



#define APM_CPU_PART_XGENE		0x000

#define APM_CPU_VAR_POTENZA		0x00
@@ -159,6 +160,7 @@ 
#define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)

#define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)

#define MIDR_CORTEX_A78C	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78C)

#define MIDR_CORTEX_X4 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X4)

#define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)

#define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)

#define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)