From: Pranith Kumar <bobby.pr...@gmail.com>
Cc: Claudio Fontana <claudio.font...@gmail.com>
Signed-off-by: Pranith Kumar <bobby.pr...@gmail.com>
Message-Id: <20160714202026.9727-4-bobby.pr...@gmail.com>
Signed-off-by: Richard Henderson <r...@twiddle.net>
---
tcg/aarch64/tcg-target.inc.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c
index 2f5629e..6caa9a4 100644
--- a/tcg/aarch64/tcg-target.inc.c
+++ b/tcg/aarch64/tcg-target.inc.c
@@ -372,6 +372,11 @@ typedef enum {
I3510_EOR = 0x4a000000,
I3510_EON = 0x4a200000,
I3510_ANDS = 0x6a000000,
+
+ /* System instructions. */
+ DMB_ISH = 0xd50338bf,
+ DMB_LD = 0x00000100,
+ DMB_ST = 0x00000200,
} AArch64Insn;
static inline uint32_t tcg_in32(TCGContext *s)
@@ -981,6 +986,20 @@ static inline void tcg_out_addsub2(TCGContext *s, int ext,
TCGReg rl,
tcg_out_mov(s, ext, orig_rl, rl);
}
+static inline void tcg_out_mb(TCGContext *s, TCGArg a0)
+{
+ uint32_t dmb_type = DMB_ISH;
+ a0 &= TCG_MO_ALL;
+ if (a0 == TCG_MO_LD_LD) {
+ dmb_type |= DMB_LD;
+ } else if (a0 == TCG_MO_ST_ST) {
+ dmb_type |= DMB_ST;
+ } else {
+ dmb_type |= DMB_LD | DMB_ST;
+ }
+ tcg_out32(s, dmb_type);
+}
+
#ifdef CONFIG_SOFTMMU
/* helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr,
* TCGMemOpIdx oi, uintptr_t ra)
@@ -1647,6 +1666,10 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_insn(s, 3508, SMULH, TCG_TYPE_I64, a0, a1, a2);
break;
+ case INDEX_op_mb:
+ tcg_out_mb(s, a0);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
case INDEX_op_movi_i32: /* Always emitted via tcg_out_movi. */
@@ -1771,6 +1794,7 @@ static const TCGTargetOpDef aarch64_op_defs[] = {
{ INDEX_op_muluh_i64, { "r", "r", "r" } },
{ INDEX_op_mulsh_i64, { "r", "r", "r" } },
+ { INDEX_op_mb, { } },
{ -1 },
};
--
2.7.4
