[PATCH v2 12/25] target/loongarch: Use explicit little-endian LD/ST API

Philippe Mathieu-Daudé posted 25 patches 1 month, 2 weeks ago
[PATCH v2 12/25] target/loongarch: Use explicit little-endian LD/ST API
Posted by Philippe Mathieu-Daudé 1 month, 2 weeks ago
The LoongArch architecture uses little endianness. Directly
use the little-endian LD/ST API.

Mechanical change using:

  $ end=le; \
    for acc in uw w l q tul; do \
      sed -i -e "s/ld${acc}_p(/ld${acc}_${end}_p(/" \
             -e "s/st${acc}_p(/st${acc}_${end}_p(/" \
        $(git grep -wlE '(ld|st)t?u?[wlq]_p' target/loongarch/); \
    done

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 target/loongarch/gdbstub.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/target/loongarch/gdbstub.c b/target/loongarch/gdbstub.c
index 3a03cf9cba9..dafa4feb75d 100644
--- a/target/loongarch/gdbstub.c
+++ b/target/loongarch/gdbstub.c
@@ -67,10 +67,10 @@ int loongarch_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
     int length = 0;
 
     if (is_la64(env)) {
-        tmp = ldq_p(mem_buf);
+        tmp = ldq_le_p(mem_buf);
         read_length = 8;
     } else {
-        tmp = ldl_p(mem_buf);
+        tmp = ldl_le_p(mem_buf);
         read_length = 4;
     }
 
@@ -106,13 +106,13 @@ static int loongarch_gdb_set_fpu(CPUState *cs, uint8_t *mem_buf, int n)
     int length = 0;
 
     if (0 <= n && n < 32) {
-        env->fpr[n].vreg.D(0) = ldq_p(mem_buf);
+        env->fpr[n].vreg.D(0) = ldq_le_p(mem_buf);
         length = 8;
     } else if (32 <= n && n < 40) {
         env->cf[n - 32] = ldub_p(mem_buf);
         length = 1;
     } else if (n == 40) {
-        env->fcsr0 = ldl_p(mem_buf);
+        env->fcsr0 = ldl_le_p(mem_buf);
         length = 4;
     }
     return length;
-- 
2.45.2


Re: [PATCH v2 12/25] target/loongarch: Use explicit little-endian LD/ST API
Posted by Richard Henderson 1 month, 2 weeks ago
On 10/4/24 09:30, Philippe Mathieu-Daudé wrote:
> The LoongArch architecture uses little endianness. Directly
> use the little-endian LD/ST API.
> 
> Mechanical change using:
> 
>    $ end=le; \
>      for acc in uw w l q tul; do \
>        sed -i -e "s/ld${acc}_p(/ld${acc}_${end}_p(/" \
>               -e "s/st${acc}_p(/st${acc}_${end}_p(/" \
>          $(git grep -wlE '(ld|st)t?u?[wlq]_p' target/loongarch/); \
>      done
> 
> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org>
> ---
>   target/loongarch/gdbstub.c | 8 ++++----
>   1 file changed, 4 insertions(+), 4 deletions(-)

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

r~