Thread (16 messages) 16 messages, 2 authors, 2024-07-25

[PATCH v7 07/13] riscv: csr: Add CSR encodings for CSR_VXRM/CSR_VXSAT

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STALE811d SUPERSEDED

From: Charlie Jenkins <hidden>
Date: 2024-07-24 19:14:16
Also in: linux-devicetree, linux-kselftest, linux-riscv, linux-sunxi, lkml
Subsystem: risc-v architecture, the rest · Maintainers: Paul Walmsley, Palmer Dabbelt, Albert Ou, Linus Torvalds

Revision v7 of 11 in this series.

Revisions (11)
  1. v1 [diff vs current]
  2. v2 [diff vs current]
  3. v3 [diff vs current]
  4. v4 [diff vs current]
  5. v5 [diff vs current]
  6. v6 [diff vs current]
  7. v7 current
  8. v8 [diff vs current]
  9. v9 [diff vs current]
  10. v10 [diff vs current]
  11. v11 [diff vs current] 
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 <redacted>
---
 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
 
 /* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */
 #define CSR_SISELECT		0x150

-- 
2.44.0
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