Cc: Claudio Fontana <claudio.font...@gmail.com> Signed-off-by: Richard Henderson <r...@twiddle.net> Signed-off-by: Pranith Kumar <bobby.pr...@gmail.com> --- tcg/aarch64/tcg-target.inc.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+)
diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c index 1447f7c..bc8ac9c 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) @@ -971,6 +976,21 @@ 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) +{ + switch (a0 & TCG_MO_ALL) { + case TCG_MO_LD_LD: + tcg_out32(s, DMB_ISH | DMB_LD); + break; + case TCG_MO_ST_ST: + tcg_out32(s, DMB_ISH | DMB_ST); + break; + default: + tcg_out32(s, DMB_ISH | DMB_LD | DMB_ST); + break; + } +} + #ifdef CONFIG_SOFTMMU /* helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr, * TCGMemOpIdx oi, uintptr_t ra) @@ -1637,6 +1657,10 @@ 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. */ @@ -1761,6 +1785,7 @@ static const TCGTargetOpDef aarch64_op_defs[] = { { INDEX_op_muluh_i64, { "r", "r", "r" } }, { INDEX_op_mulsh_i64, { "r", "r", "r" } }, + { INDEX_op_mb, { } }, { -1 }, }; -- 2.9.0