@@ -13109,6 +13109,34 @@ static void gen_ldst_pair (DisasContext *ctx, uint32_t opc, int rd,
tcg_temp_free(t1);
}
+static void gen_sync(int stype)
+{
+ TCGBar tcg_mo = TCG_BAR_SC;
+
+ switch (stype) {
+ case 0x4: /* SYNC_WMB */
+ tcg_mo |= TCG_MO_ST_ST;
+ break;
+ case 0x10: /* SYNC_MB */
+ tcg_mo |= TCG_MO_ALL;
+ break;
+ case 0x11: /* SYNC_ACQUIRE */
+ tcg_mo |= TCG_MO_LD_LD | TCG_MO_LD_ST;
+ break;
+ case 0x12: /* SYNC_RELEASE */
+ tcg_mo |= TCG_MO_ST_ST | TCG_MO_LD_ST;
+ break;
+ case 0x13: /* SYNC_RMB */
+ tcg_mo |= TCG_MO_LD_LD;
+ break;
+ default:
+ tcg_mo |= TCG_MO_ALL;
+ break;
+ }
+
+ tcg_gen_mb(tcg_mo);
+}
+
static void gen_pool32axf (CPUMIPSState *env, DisasContext *ctx, int rt, int rs)
{
int extension = (ctx->opcode >> 6) & 0x3f;
@@ -13384,7 +13412,7 @@ static void gen_pool32axf (CPUMIPSState *env, DisasContext *ctx, int rt, int rs)
case 0x2d:
switch (minor) {
case SYNC:
- /* NOP */
+ gen_sync(extract32(ctx->opcode, 16, 5));
break;
case SYSCALL:
generate_exception_end(ctx, EXCP_SYSCALL);
@@ -17201,7 +17229,7 @@ static void decode_opc_special(CPUMIPSState *env, DisasContext *ctx)
break;
case OPC_SYNC:
check_insn(ctx, ISA_MIPS2);
- /* Treat as NOP. */
+ gen_sync(extract32(ctx->opcode, 6, 5));
break;
#if defined(TARGET_MIPS64)