RISC-V: define the elements of the VCSR vector CSR

A patch from »RISC-V: T-Head vector handling« in state Obsolete for linux-kernel

From: Heiko Stuebner <heiko.stuebner@...> Date: Fri, 24 Feb 2023 14:20:17 +0100

Commit-Message

The VCSR CSR contains two elements VXRM[2:1] and VXSAT[0]. Define constants for those to access the elements in a readable way. Signed-off-by: Heiko Stuebner <heiko.stuebner@...>

Patch-Comment

arch/riscv/include/asm/csr.h | 5 +++++ 1 file changed, 5 insertions(+)

Statistics

  • 5 lines added
  • 0 lines removed

Changes

------------------------- arch/riscv/include/asm/csr.h -------------------------
index add51662b7c3..8b06f2472915 100644
@@ -176,6 +176,11 @@
#define ENVCFG_CBIE_INV _AC(0x3, UL)
#define ENVCFG_FIOM _AC(0x1, UL)
+/* VCSR flags */
+#define VCSR_VXRM_MASK 3
+#define VCSR_VXRM_SHIFT 1
+#define VCSR_VXSAT_MASK 1
+
/* symbolic CSR names: */
#define CSR_CYCLE 0xc00
#define CSR_TIME 0xc01
 
 

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