target/mips: Add MO_ALIGN to gen_llwp, gen_scwp

These are atomic operations, so mark as requiring alignment. Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
qemu · May 11, 2023 · 3ec02c1 · 3ec02c1
1 parent 9490142
commit 3ec02c1
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/target/mips/tcg/nanomips_translate.c.inc b/target/mips/tcg/nanomips_translate.c.inc
@@ -998,7 +998,7 @@ static void gen_llwp(DisasContext *ctx, uint32_t base, int16_t offset,
     TCGv tmp2 = tcg_temp_new();
 
     gen_base_offset_addr(ctx, taddr, base, offset);
-    tcg_gen_qemu_ld_i64(tval, taddr, ctx->mem_idx, MO_TEUQ);
+    tcg_gen_qemu_ld_i64(tval, taddr, ctx->mem_idx, MO_TEUQ | MO_ALIGN);
     if (cpu_is_bigendian(ctx)) {
         tcg_gen_extr_i64_tl(tmp2, tmp1, tval);
     } else {
@@ -1039,7 +1039,8 @@ static void gen_scwp(DisasContext *ctx, uint32_t base, int16_t offset,
 
     tcg_gen_ld_i64(llval, cpu_env, offsetof(CPUMIPSState, llval_wp));
     tcg_gen_atomic_cmpxchg_i64(val, taddr, llval, tval,
-                               eva ? MIPS_HFLAG_UM : ctx->mem_idx, MO_64);
+                               eva ? MIPS_HFLAG_UM : ctx->mem_idx,
+                               MO_64 | MO_ALIGN);
     if (reg1 != 0) {
         tcg_gen_movi_tl(cpu_gpr[reg1], 1);
     }