diff mbox series

[RFT,v3,05/27] arm64: cputype: Add CPU implementor & types for the Apple M1 cores

Message ID 20210304213902.83903-6-marcan@marcan.st
State Superseded
Headers show
Series Apple M1 SoC platform bring-up | expand

Commit Message

Hector Martin March 4, 2021, 9:38 p.m. UTC
The implementor will be used to condition the FIQ support quirk.

The specific CPU types are not used at the moment, but let's add them
for documentation purposes.

Signed-off-by: Hector Martin <marcan@marcan.st>
---
 arch/arm64/include/asm/cputype.h | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Will Deacon March 24, 2021, 6:13 p.m. UTC | #1
On Fri, Mar 05, 2021 at 06:38:40AM +0900, Hector Martin wrote:
> The implementor will be used to condition the FIQ support quirk.
> 
> The specific CPU types are not used at the moment, but let's add them
> for documentation purposes.
> 
> Signed-off-by: Hector Martin <marcan@marcan.st>
> ---
>  arch/arm64/include/asm/cputype.h | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
> index ef5b040dee44..6231e1f0abe7 100644
> --- a/arch/arm64/include/asm/cputype.h
> +++ b/arch/arm64/include/asm/cputype.h
> @@ -59,6 +59,7 @@
>  #define ARM_CPU_IMP_NVIDIA		0x4E
>  #define ARM_CPU_IMP_FUJITSU		0x46
>  #define ARM_CPU_IMP_HISI		0x48
> +#define ARM_CPU_IMP_APPLE		0x61
>  
>  #define ARM_CPU_PART_AEM_V8		0xD0F
>  #define ARM_CPU_PART_FOUNDATION		0xD00
> @@ -99,6 +100,9 @@
>  
>  #define HISI_CPU_PART_TSV110		0xD01
>  
> +#define APPLE_CPU_PART_M1_ICESTORM	0x022
> +#define APPLE_CPU_PART_M1_FIRESTORM	0x023
> +
>  #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
>  #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
>  #define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72)
> @@ -127,6 +131,8 @@
>  #define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
>  #define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX)
>  #define MIDR_HISI_TSV110 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_TSV110)
> +#define MIDR_APPLE_M1_ICESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM)
> +#define MIDR_APPLE_M1_FIRESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM)

We usually only merge these when they're needed, but this SoC seems broken
enough that I can see the value in having them from the start :(

Acked-by: Will Deacon <will@kernel.org>

Will
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h
index ef5b040dee44..6231e1f0abe7 100644
--- a/arch/arm64/include/asm/cputype.h
+++ b/arch/arm64/include/asm/cputype.h
@@ -59,6 +59,7 @@ 
 #define ARM_CPU_IMP_NVIDIA		0x4E
 #define ARM_CPU_IMP_FUJITSU		0x46
 #define ARM_CPU_IMP_HISI		0x48
+#define ARM_CPU_IMP_APPLE		0x61
 
 #define ARM_CPU_PART_AEM_V8		0xD0F
 #define ARM_CPU_PART_FOUNDATION		0xD00
@@ -99,6 +100,9 @@ 
 
 #define HISI_CPU_PART_TSV110		0xD01
 
+#define APPLE_CPU_PART_M1_ICESTORM	0x022
+#define APPLE_CPU_PART_M1_FIRESTORM	0x023
+
 #define MIDR_CORTEX_A53 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A53)
 #define MIDR_CORTEX_A57 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A57)
 #define MIDR_CORTEX_A72 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A72)
@@ -127,6 +131,8 @@ 
 #define MIDR_NVIDIA_CARMEL MIDR_CPU_MODEL(ARM_CPU_IMP_NVIDIA, NVIDIA_CPU_PART_CARMEL)
 #define MIDR_FUJITSU_A64FX MIDR_CPU_MODEL(ARM_CPU_IMP_FUJITSU, FUJITSU_CPU_PART_A64FX)
 #define MIDR_HISI_TSV110 MIDR_CPU_MODEL(ARM_CPU_IMP_HISI, HISI_CPU_PART_TSV110)
+#define MIDR_APPLE_M1_ICESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_ICESTORM)
+#define MIDR_APPLE_M1_FIRESTORM MIDR_CPU_MODEL(ARM_CPU_IMP_APPLE, APPLE_CPU_PART_M1_FIRESTORM)
 
 /* Fujitsu Erratum 010001 affects A64FX 1.0 and 1.1, (v0r0 and v1r0) */
 #define MIDR_FUJITSU_ERRATUM_010001		MIDR_FUJITSU_A64FX