Cc'ing Joaquin who has interest in Xtensa ISA :)
On 5/19/21 12:44 PM, Max Filippov wrote:
> l32ex does memory access as all regular load/store operations at CRING
> level. Fix apparent pasto from l32e that caused it to use RING instead.
>
> Cc: qemu-stable@nongnu.org
> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
> ---
> target/xtensa/translate.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
> index f93df87ec490..95f6b21c2a1e 100644
> --- a/target/xtensa/translate.c
> +++ b/target/xtensa/translate.c
> @@ -1814,7 +1814,7 @@ static void translate_l32ex(DisasContext *dc, const OpcodeArg arg[],
> tcg_gen_mov_i32(addr, arg[1].in);
> gen_load_store_alignment(dc, 2, addr, true);
> gen_check_exclusive(dc, addr, false);
> - tcg_gen_qemu_ld_i32(arg[0].out, addr, dc->ring, MO_TEUL);
> + tcg_gen_qemu_ld_i32(arg[0].out, addr, dc->cring, MO_TEUL);
> tcg_gen_mov_i32(cpu_exclusive_addr, addr);
> tcg_gen_mov_i32(cpu_exclusive_val, arg[0].out);
> tcg_temp_free(addr);
>
Looking at s32ex, it makes sense.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>