[PATCH v10 06/14] RISC-V: define the elements of the VCSR vector CSR
Andy Chiu
andybnac at gmail.com
Sun Oct 6 09:04:18 PDT 2024
Charlie Jenkins <charlie at rivosinc.com> 於 2024年9月12日 週四 下午1:57寫道:
>
> From: Heiko Stuebner <heiko at sntech.de>
>
> The VCSR CSR contains two elements VXRM[2:1] and VXSAT[0].
>
> Define constants for those to access the elements in a readable way.
>
> Acked-by: Guo Ren <guoren at kernel.org>
> Reviewed-by: Conor Dooley <conor.dooley at microchip.com>
> Signed-off-by: Heiko Stuebner <heiko.stuebner at vrull.eu>
> Signed-off-by: Charlie Jenkins <charlie at rivosinc.com>
Reviewed-by: Andy Chiu <andybnac at gmail.com>
> ---
> arch/riscv/include/asm/csr.h | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
> index 25966995da04..3eeb07d73065 100644
> --- a/arch/riscv/include/asm/csr.h
> +++ b/arch/riscv/include/asm/csr.h
> @@ -300,6 +300,10 @@
> #define CSR_STIMECMP 0x14D
> #define CSR_STIMECMPH 0x15D
>
> +#define VCSR_VXRM_MASK 3
> +#define VCSR_VXRM_SHIFT 1
> +#define VCSR_VXSAT_MASK 1
> +
> /* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */
> #define CSR_SISELECT 0x150
> #define CSR_SIREG 0x151
>
> --
> 2.45.0
>
>
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