Define masks and shifts for vtype CSR according to the vector specs: - v0.7.1 used in early T-Head cores, known as xtheadvector in the kernel - v1.0
Signed-off-by: Sergey Matyukevich <[email protected]> --- arch/riscv/include/asm/csr.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h index 4a37a98398ad..38f16538b35c 100644 --- a/arch/riscv/include/asm/csr.h +++ b/arch/riscv/include/asm/csr.h @@ -444,6 +444,23 @@ #define CSR_VTYPE 0xc21 #define CSR_VLENB 0xc22 +#define VTYPE_VLMUL _AC(7, UL) +#define VTYPE_VLMUL_FRAC _AC(4, UL) +#define VTYPE_VSEW_SHIFT 3 +#define VTYPE_VSEW (_AC(7, UL) << VTYPE_VSEW_SHIFT) +#define VTYPE_VTA_SHIFT 6 +#define VTYPE_VTA (_AC(1, UL) << VTYPE_VTA_SHIFT) +#define VTYPE_VMA_SHIFT 7 +#define VTYPE_VMA (_AC(1, UL) << VTYPE_VMA_SHIFT) +#define VTYPE_VILL_SHIFT (__riscv_xlen - 1) +#define VTYPE_VILL (_AC(1, UL) << VTYPE_VILL_SHIFT) + +#define VTYPE_VLMUL_THEAD _AC(3, UL) +#define VTYPE_VSEW_THEAD_SHIFT 2 +#define VTYPE_VSEW_THEAD (_AC(7, UL) << VTYPE_VSEW_THEAD_SHIFT) +#define VTYPE_VEDIV_THEAD_SHIFT 5 +#define VTYPE_VEDIV_THEAD (_AC(3, UL) << VTYPE_VEDIV_THEAD_SHIFT) + /* Scalar Crypto Extension - Entropy */ #define CSR_SEED 0x015 #define SEED_OPST_MASK _AC(0xC0000000, UL) -- 2.52.0
