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[v4,07/13] riscv: csr: Add CSR encodings for CSR_VXRM/CSR_VXSAT

Message ID 20240702-xtheadvector-v4-7-2bad6820db11@rivosinc.com (mailing list archive)
State New
Headers show
Series riscv: Add support for xtheadvector | expand

Commit Message

Charlie Jenkins July 3, 2024, 5:56 a.m. UTC 
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(-)
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Patch

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
 
 /* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */
 #define CSR_SISELECT		0x150