[PATCH v3 01/42] arm64: sysreg: Add ID_AA64ISAR1_EL1.LS64 encoding for FEAT_LS64WB

[Joey Gouly]

On Sat, Apr 26, 2025 at 01:27:55PM +0100, Marc Zyngier wrote:
> The 2024 extensions are adding yet another variant of LS64
> (aptly named FEAT_LS64WB) supporting LS64 accesses to write-back
> memory, as well as 32 byte single-copy atomic accesses using pairs
> of FP registers.
> 
> Add the relevant encoding to ID_AA64ISAR1_EL1.LS64.
> 
> Signed-off-by: Marc Zyngier <maz at kernel.org>
> ---
>  arch/arm64/tools/sysreg | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm64/tools/sysreg b/arch/arm64/tools/sysreg
> index bdf044c5d11b6..e5da8848b66b5 100644
> --- a/arch/arm64/tools/sysreg
> +++ b/arch/arm64/tools/sysreg
> @@ -1466,6 +1466,7 @@ UnsignedEnum	63:60	LS64
>  	0b0001	LS64
>  	0b0010	LS64_V
>  	0b0011	LS64_ACCDATA
> +	0b0100	LS64WB
>  EndEnum
>  UnsignedEnum	59:56	XS
>  	0b0000	NI

Reviewed-by: Joey Gouly <joey.gouly at arm.com>