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

From: Charlie Jenkins
Date: Tue Aug 06 2024 - 20:33:16 EST


From: Heiko Stuebner <heiko@xxxxxxxxx>

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@xxxxxxxxxx>
Reviewed-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Signed-off-by: Heiko Stuebner <heiko.stuebner@xxxxxxxx>
Signed-off-by: Charlie Jenkins <charlie@xxxxxxxxxxxx>
---
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