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[2/3] arm64: cputype: Add Cortex-A725 definitions

Message ID 20240801101803.1982459-3-mark.rutland@arm.com (mailing list archive)
State New, archived
Headers show
Series arm64: errata: Expand speculative SSBS workaround (again) | expand

Commit Message

Mark Rutland Aug. 1, 2024, 10:18 a.m. UTC
Add cputype definitions for Cortex-A725. These will be used for errata
detection in subsequent patches.

These values can be found in the Cortex-A725 TRM:

  https://developer.arm.com/documentation/107652/0001/

... in table A-247 ("MIDR_EL1 bit descriptions").

Signed-off-by: Mark 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>
---
 arch/arm64/include/asm/cputype.h | 2 ++
 1 file changed, 2 insertions(+)

Comments

Anshuman Khandual Aug. 1, 2024, 11:42 a.m. UTC | #1
On 8/1/24 15:48, Mark Rutland wrote:
> Add cputype definitions for Cortex-A725. These will be used for errata
> detection in subsequent patches.
> 
> These values can be found in the Cortex-A725 TRM:
> 
>   https://developer.arm.com/documentation/107652/0001/
> 
> ... in table A-247 ("MIDR_EL1 bit descriptions").
> 
> Signed-off-by: Mark 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>
> ---
>  arch/arm64/include/asm/cputype.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
> index 5dc68ace305e5..5fd7caea44193 100644
> --- a/arch/arm64/include/asm/cputype.h
> +++ b/arch/arm64/include/asm/cputype.h
> @@ -93,6 +93,7 @@
>  #define ARM_CPU_PART_CORTEX_X4		0xD82
>  #define ARM_CPU_PART_NEOVERSE_V3	0xD84
>  #define ARM_CPU_PART_CORTEX_X925	0xD85
> +#define ARM_CPU_PART_CORTEX_A725	0xD87
>  
>  #define APM_CPU_PART_XGENE		0x000
>  #define APM_CPU_VAR_POTENZA		0x00
> @@ -173,6 +174,7 @@
>  #define MIDR_CORTEX_X4 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X4)
>  #define MIDR_NEOVERSE_V3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V3)
>  #define MIDR_CORTEX_X925 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X925)
> +#define MIDR_CORTEX_A725 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A725)
>  #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)

The CPU part number 0xD87 checks out in the mentioned document above.

Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
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Patch

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index 5dc68ace305e5..5fd7caea44193 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -93,6 +93,7 @@ 
 #define ARM_CPU_PART_CORTEX_X4		0xD82
 #define ARM_CPU_PART_NEOVERSE_V3	0xD84
 #define ARM_CPU_PART_CORTEX_X925	0xD85
+#define ARM_CPU_PART_CORTEX_A725	0xD87
 
 #define APM_CPU_PART_XGENE		0x000
 #define APM_CPU_VAR_POTENZA		0x00
@@ -173,6 +174,7 @@ 
 #define MIDR_CORTEX_X4 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X4)
 #define MIDR_NEOVERSE_V3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V3)
 #define MIDR_CORTEX_X925 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X925)
+#define MIDR_CORTEX_A725 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A725)
 #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)