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[174.24.157.40]) by smtp.gmail.com with ESMTPSA id 17sm15558301ywk.17.2016.09.07.14.11.32 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 07 Sep 2016 14:11:33 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Wed, 7 Sep 2016 14:10:41 -0700 Message-Id: <1473282648-23487-12-git-send-email-rth@twiddle.net> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1473282648-23487-1-git-send-email-rth@twiddle.net> References: <1473282648-23487-1-git-send-email-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2607:f8b0:4002:c09::242 Subject: [Qemu-devel] [PULL 11/18] tcg/s390: Add support for fence X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, Pranith Kumar , Alexander Graf Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Pranith Kumar Cc: Alexander Graf Signed-off-by: Pranith Kumar Message-Id: <20160714202026.9727-9-bobby.prani@gmail.com> Signed-off-by: Richard Henderson --- tcg/s390/tcg-target.inc.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tcg/s390/tcg-target.inc.c b/tcg/s390/tcg-target.inc.c index c30a7ef..ada607f 100644 --- a/tcg/s390/tcg-target.inc.c +++ b/tcg/s390/tcg-target.inc.c @@ -343,6 +343,7 @@ 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; @@ -2167,6 +2168,15 @@ 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. */ + if (args[0] & TCG_MO_ST_LD) { + 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. */ @@ -2288,6 +2298,7 @@ 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, { } }, { -1 }, };