[v2] tcg/riscv: Add support for vector

[PATCH v2 14/14] tcg/riscv: Enable native vector support for TCG host

Posted by LIU Zhiwei 2 months, 3 weeks ago

From: TANG Tiancheng <tangtiancheng.ttc@alibaba-inc.com>

Signed-off-by: TANG Tiancheng <tangtiancheng.ttc@alibaba-inc.com>
Reviewed-by: Liu Zhiwei <zhiwei_liu@linux.alibaba.com>
---
 tcg/riscv/tcg-target.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tcg/riscv/tcg-target.h b/tcg/riscv/tcg-target.h
index eb5129a976..b8f553207e 100644
--- a/tcg/riscv/tcg-target.h
+++ b/tcg/riscv/tcg-target.h
@@ -143,9 +143,11 @@ typedef enum {
 #define TCG_TARGET_HAS_tst              0
 
 /* vector instructions */
-#define TCG_TARGET_HAS_v64              0
-#define TCG_TARGET_HAS_v128             0
-#define TCG_TARGET_HAS_v256             0
+#define have_rvv    (cpuinfo & CPUINFO_ZVE64X)
+
+#define TCG_TARGET_HAS_v64              have_rvv
+#define TCG_TARGET_HAS_v128             have_rvv
+#define TCG_TARGET_HAS_v256             have_rvv
 #define TCG_TARGET_HAS_andc_vec         0
 #define TCG_TARGET_HAS_orc_vec          0
 #define TCG_TARGET_HAS_nand_vec         0
-- 
2.43.0

Re: [PATCH v2 14/14] tcg/riscv: Enable native vector support for TCG host

Posted by Richard Henderson 2 months, 3 weeks ago

On 8/29/24 23:16, LIU Zhiwei wrote:
> From: TANG Tiancheng<tangtiancheng.ttc@alibaba-inc.com>
> 
> Signed-off-by: TANG Tiancheng<tangtiancheng.ttc@alibaba-inc.com>
> Reviewed-by: Liu Zhiwei<zhiwei_liu@linux.alibaba.com>
> ---
>   tcg/riscv/tcg-target.h | 8 +++++---
>   1 file changed, 5 insertions(+), 3 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~