diff options
| author | Pranith Kumar <bobby.prani@gmail.com> | 2016-07-14 16:20:15 -0400 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-09-16 08:12:11 -0700 |
| commit | c7a59c2a92592e556b9361437c9c4229917bd1e3 (patch) | |
| tree | c0543464cb7cba2a8598c0ef20d0c07d09544f0e | |
| parent | a7d00d4effb58889ac6df64f98ac50c9d1594149 (diff) | |
| download | qemu-c7a59c2a92592e556b9361437c9c4229917bd1e3.zip qemu-c7a59c2a92592e556b9361437c9c4229917bd1e3.tar.gz qemu-c7a59c2a92592e556b9361437c9c4229917bd1e3.tar.bz2 | |
tcg/aarch64: Add support for fence
Cc: Claudio Fontana <claudio.fontana@gmail.com>
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Message-Id: <20160714202026.9727-4-bobby.prani@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | tcg/aarch64/tcg-target.inc.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tcg/aarch64/tcg-target.inc.c b/tcg/aarch64/tcg-target.inc.c index c8374b8..1939d35 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 +986,18 @@ 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) +{ + static const uint32_t sync[] = { + [0 ... TCG_MO_ALL] = DMB_ISH | DMB_LD | DMB_ST, + [TCG_MO_ST_ST] = DMB_ISH | DMB_ST, + [TCG_MO_LD_LD] = DMB_ISH | DMB_LD, + [TCG_MO_LD_ST] = DMB_ISH | DMB_LD, + [TCG_MO_LD_ST | TCG_MO_LD_LD] = DMB_ISH | DMB_LD, + }; + tcg_out32(s, sync[a0 & TCG_MO_ALL]); +} + #ifdef CONFIG_SOFTMMU /* helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr, * TCGMemOpIdx oi, uintptr_t ra) @@ -1649,6 +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. */ @@ -1773,6 +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 }, }; |