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[Qemu-devel] [RFC v2 PATCH 08/13] tcg/s390: Add support for fence
From: |
Pranith Kumar |
Subject: |
[Qemu-devel] [RFC v2 PATCH 08/13] tcg/s390: Add support for fence |
Date: |
Tue, 31 May 2016 14:39:23 -0400 |
Cc: Alexander Graf <address@hidden>
Signed-off-by: Richard Henderson <address@hidden>
Signed-off-by: Pranith Kumar <address@hidden>
---
tcg/s390/tcg-target.inc.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/tcg/s390/tcg-target.inc.c b/tcg/s390/tcg-target.inc.c
index e95b04b..b4f14bc 100644
--- a/tcg/s390/tcg-target.inc.c
+++ b/tcg/s390/tcg-target.inc.c
@@ -341,6 +341,7 @@ static tcg_insn_unit *tb_ret_addr;
#define FACILITY_EXT_IMM (1ULL << (63 - 21))
#define FACILITY_GEN_INST_EXT (1ULL << (63 - 34))
#define FACILITY_LOAD_ON_COND (1ULL << (63 - 45))
+#define FACILITY_FAST_BCR_SER FACILITY_LOAD_ON_COND
static uint64_t facilities;
@@ -2157,6 +2158,13 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode
opc,
tgen_deposit(s, args[0], args[2], args[3], args[4]);
break;
+ case INDEX_op_mb:
+ /* The host memory model is quite strong, we simply need to
+ serialize the instruction stream. */
+ tcg_out_insn(s, RR, BCR,
+ facilities & FACILITY_FAST_BCR_SER ? 14 : 15, 0);
+ 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. */
@@ -2278,6 +2286,7 @@ static const TCGTargetOpDef s390_op_defs[] = {
{ INDEX_op_movcond_i64, { "r", "r", "rC", "r", "0" } },
{ INDEX_op_deposit_i64, { "r", "0", "r" } },
+ { INDEX_op_mb, { "r" } },
{ -1 },
};
--
2.8.3
- [Qemu-devel] [RFC v2 PATCH 00/13] tcg: Add fence gen support, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 05/13] tcg/ia64: Add support for fence, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 06/13] tcg/mips: Add support for fence, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 07/13] tcg/ppc: Add support for fence, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 04/13] tcg/arm: Add support for fence, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 01/13] Introduce TCGOpcode for memory barrier, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 08/13] tcg/s390: Add support for fence,
Pranith Kumar <=
- [Qemu-devel] [RFC v2 PATCH 10/13] tcg/tci: Add support for fence, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 13/13] tcg: Generate fences only for SMP MTTCG guests, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 02/13] tcg/i386: Add support for fence, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 09/13] tcg/sparc: Add support for fence, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 03/13] tcg/aarch64: Add support for fence, Pranith Kumar, 2016/05/31
- [Qemu-devel] [RFC v2 PATCH 11/13] target-arm: Generate fences in ARMv7 frontend, Pranith Kumar, 2016/05/31