[PATCH RFC 1/2] RISC-V: define the elements of the VCSR vector CSR

[Conor Dooley]

On Tue, Feb 28, 2023 at 10:54:34PM +0100, Heiko Stuebner wrote:
> From: Heiko Stuebner <heiko.stuebner at vrull.eu>
> 
> The VCSR CSR contains two elements VXRM[2:1] and VXSAT[0].
> 
> Define constants for those to access the elements in a readable way.
> 
> Signed-off-by: Heiko Stuebner <heiko.stuebner at vrull.eu>

Reviewed-by: Conor Dooley <conor.dooley at microchip.com>

> ---
>  arch/riscv/include/asm/csr.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
> index add51662b7c3..8b06f2472915 100644
> --- a/arch/riscv/include/asm/csr.h
> +++ b/arch/riscv/include/asm/csr.h
> @@ -176,6 +176,11 @@
>  #define ENVCFG_CBIE_INV			_AC(0x3, UL)
>  #define ENVCFG_FIOM			_AC(0x1, UL)
>  
> +/* VCSR flags */
> +#define VCSR_VXRM_MASK			3
> +#define VCSR_VXRM_SHIFT			1
> +#define VCSR_VXSAT_MASK			1
> +
>  /* symbolic CSR names: */
>  #define CSR_CYCLE		0xc00
>  #define CSR_TIME		0xc01
> -- 
> 2.39.0
> 
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