linux-kernel - [RFC PATCH V3 04/11] riscv: Add CSR defines related to VECTOR extension

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Date:   Sun,  8 Mar 2020 17:49:47 +0800
From:   guoren@...nel.org
To:     paul.walmsley@...ive.com, palmer@...belt.com, Anup.Patel@....com,
        greentime.hu@...ive.com
Cc:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        arnd@...db.de, linux-csky@...r.kernel.org,
        linux-riscv@...ts.infradead.org,
        Guo Ren <guoren@...ux.alibaba.com>,
        Dave Martin <Dave.Martin@....com>
Subject: [RFC PATCH V3 04/11] riscv: Add CSR defines related to VECTOR extension

From: Guo Ren <guoren@...ux.alibaba.com>

Follow the spec to define the regs' bits and regs' number.

Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
---
 arch/riscv/include/asm/csr.h | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index 435b65532e29..49b93b638680 100644
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -24,6 +24,12 @@
 #define SR_FS_CLEAN	_AC(0x00004000, UL)
 #define SR_FS_DIRTY	_AC(0x00006000, UL)
 
+#define SR_VS           _AC(0x01800000, UL) /* Vector Status */
+#define SR_VS_OFF       _AC(0x00000000, UL)
+#define SR_VS_INITIAL   _AC(0x00800000, UL)
+#define SR_VS_CLEAN     _AC(0x01000000, UL)
+#define SR_VS_DIRTY     _AC(0x01800000, UL)
+
 #define SR_XS		_AC(0x00018000, UL) /* Extension Status */
 #define SR_XS_OFF	_AC(0x00000000, UL)
 #define SR_XS_INITIAL	_AC(0x00008000, UL)
@@ -31,9 +37,9 @@
 #define SR_XS_DIRTY	_AC(0x00018000, UL)
 
 #ifndef CONFIG_64BIT
-#define SR_SD		_AC(0x80000000, UL) /* FS/XS dirty */
+#define SR_SD		_AC(0x80000000, UL) /* FS/VS/XS dirty */
 #else
-#define SR_SD		_AC(0x8000000000000000, UL) /* FS/XS dirty */
+#define SR_SD		_AC(0x8000000000000000, UL) /* FS/VS/XS dirty */
 #endif
 
 /* SATP flags */
@@ -102,6 +108,13 @@
 #define CSR_MIP			0x344
 #define CSR_MHARTID		0xf14
 
+#define CSR_VSTART		0x8
+#define CSR_VXSAT		0x9
+#define CSR_VXRM		0xa
+#define CSR_VL			0xc20
+#define CSR_VTYPE		0xc21
+#define CSR_VLENB		0xc22
+
 #ifdef CONFIG_RISCV_M_MODE
 # define CSR_STATUS	CSR_MSTATUS
 # define CSR_IE		CSR_MIE
-- 
2.17.0