[v9,06/13] RISC-V: define the elements of the VCSR vector CSR

Commit Message

Charlie Jenkins Aug. 7, 2024, 12:31 a.m. UTC

From: Heiko Stuebner <[e-mail]>

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 <[e-mail]>
Reviewed-by: Conor Dooley <[e-mail]>
Signed-off-by: Heiko Stuebner <[e-mail]>
Signed-off-by: Charlie Jenkins <[e-mail]>
---
 arch/riscv/include/asm/csr.h | 4 ++++
 1 file changed, 4 insertions(+)

Patch

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