linux-kernel - [PATCH v5 07/13] riscv: csr: Add CSR encodings for CSR_VXRM/CSR

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Message-Id: <20240719-xtheadvector-v5-7-4b485fc7d55f@rivosinc.com>
Date: Fri, 19 Jul 2024 09:19:02 -0700
From: Charlie Jenkins <charlie@...osinc.com>
To: Conor Dooley <conor@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Jisheng Zhang <jszhang@...nel.org>, Chen-Yu Tsai <wens@...e.org>, 
 Jernej Skrabec <jernej.skrabec@...il.com>, 
 Samuel Holland <samuel@...lland.org>, 
 Samuel Holland <samuel.holland@...ive.com>, 
 Jonathan Corbet <corbet@....net>, Shuah Khan <shuah@...nel.org>, 
 Guo Ren <guoren@...nel.org>, Evan Green <evan@...osinc.com>, 
 Andy Chiu <andy.chiu@...ive.com>, Jessica Clarke <jrtc27@...c27.com>
Cc: linux-riscv@...ts.infradead.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-sunxi@...ts.linux.dev, 
 linux-doc@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 Charlie Jenkins <charlie@...osinc.com>, Heiko Stuebner <heiko@...ech.de>
Subject: [PATCH v5 07/13] riscv: csr: Add CSR encodings for
 CSR_VXRM/CSR_VXSAT

The VXRM vector csr for xtheadvector has an encoding of 0xa and VXSAT
has an encoding of 0x9.

Co-developed-by: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Heiko Stuebner <heiko@...ech.de>
Signed-off-by: Charlie Jenkins <charlie@...osinc.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
 
 /* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */
 #define CSR_SISELECT		0x150

-- 
2.44.0