[PATCH v1 1/6] RISC-V: Detect Smstateen extension

Conor Dooley conor at kernel.org
Wed Jul 19 09:27:16 PDT 2023


Hey,

On Wed, Jul 19, 2023 at 09:33:11PM +0530, Mayuresh Chitale wrote:
> Extend the ISA string parsing to detect the Smstateen extension
> 
> Signed-off-by: Mayuresh Chitale <mchitale at ventanamicro.com>

> diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c
> index bdcf460ea53d..41c3aefcc53f 100644
> --- a/arch/riscv/kernel/cpufeature.c
> +++ b/arch/riscv/kernel/cpufeature.c
> @@ -301,6 +301,8 @@ void __init riscv_fill_hwcap(void)
>  			} else {
>  				/* sorted alphabetically */
>  				SET_ISA_EXT_MAP("smaia", RISCV_ISA_EXT_SMAIA);
> +				SET_ISA_EXT_MAP("smstateen",
> +						RISCV_ISA_EXT_SMSTATEEN);

This easily fits on one line & "smstateen" needs to be documented in
riscv/extensions.yaml.

Thanks,
Conor.

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