[PATCH] arm64/sysreg: Update ID_AA64DFR0_EL1 and ID_DFR0_EL1

Mark Brown broonie at kernel.org
Thu Feb 15 05:00:38 PST 2024


On Thu, Feb 15, 2024 at 11:21:59AM +0530, Anshuman Khandual wrote:

> This just updates ID_DFR0_EL1.CopDbg and ID_AA64DFR0_EL1.DebugVer register
> fields as per the definitions based on DDI0601 2023-12.

Just as a general note for non-trival registers it's easier to review if
we change one register per patch, it avoids having to re-review the same
registers repeatedly and for incremental changes like this it helps with
the fact that diff does badly at offering context.

> --- a/arch/arm64/tools/sysreg
> +++ b/arch/arm64/tools/sysreg
> @@ -231,6 +231,7 @@ Enum	3:0	CopDbg
>  	0b1000	Debugv8p2
>  	0b1001	Debugv8p4
>  	0b1010	Debugv8p8
> +	0b1011	Debugv8p9
>  EndEnum
>  EndSysreg

This is ID_AA64DFR0_EL1 and is missing at least an update to PMSVer.

>  
> @@ -1247,6 +1248,7 @@ UnsignedEnum	3:0	DebugVer
>  	0b1000	V8P2
>  	0b1001	V8P4
>  	0b1010	V8P8
> +	0b1011	V8P9
>  EndEnum
>  EndSysreg

This is ID_DFR0_EL1 and is missing an update to at least PerfMon.
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