Hi Charlie,
Charlie Jenkins charlie@rivosinc.com 於 2024年9月12日 週四 下午1:57寫道：
The VXRM vector csr for xtheadvector has an encoding of 0xa and VXSAT has an encoding of 0x9.
Co-developed-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Heiko Stuebner heiko@sntech.de Signed-off-by: Charlie Jenkins charlie@rivosinc.com
arch/riscv/include/asm/csr.h | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h index 3eeb07d73065..c0a60c4ed911 100644 --- a/arch/riscv/include/asm/csr.h +++ b/arch/riscv/include/asm/csr.h @@ -300,9 +300,14 @@ #define CSR_STIMECMP 0x14D #define CSR_STIMECMPH 0x15D
-#define VCSR_VXRM_MASK 3 -#define VCSR_VXRM_SHIFT 1 -#define VCSR_VXSAT_MASK 1 +/* xtheadvector symbolic CSR names */ +#define CSR_VXSAT 0x9 +#define CSR_VXRM 0xa
+/* xtheadvector CSR masks */ +#define CSR_VXRM_MASK 3 +#define CSR_VXRM_SHIFT 1 +#define CSR_VXSAT_MASK 1
nit: use VCSR_VX* instead of CSR_VX*, if you need to send the next revision. I believe these masks are for CSR_VCSR but not CSR_VX*. If you think CSR_VX* is a better naming then the previous patch should introduce it as CSR_VX* but not VCSR_VX*.
/* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */ #define CSR_SISELECT 0x150
-- 2.45.0
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Thanks, Andy