From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:40558) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b6699-00009j-CQ for qemu-devel@nongnu.org; Thu, 26 May 2016 21:01:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1b6698-0004Cj-Dt for qemu-devel@nongnu.org; Thu, 26 May 2016 21:01:03 -0400 Received: from mail-qk0-x241.google.com ([2607:f8b0:400d:c09::241]:33802) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1b6698-0004Ce-9t for qemu-devel@nongnu.org; Thu, 26 May 2016 21:01:02 -0400 Received: by mail-qk0-x241.google.com with SMTP id i7so3841361qkd.1 for ; Thu, 26 May 2016 18:01:02 -0700 (PDT) Sender: Richard Henderson From: Richard Henderson Date: Thu, 26 May 2016 18:00:11 -0700 Message-Id: <1464310815-13554-9-git-send-email-rth@twiddle.net> In-Reply-To: <1464310815-13554-1-git-send-email-rth@twiddle.net> References: <1464310815-13554-1-git-send-email-rth@twiddle.net> Subject: [Qemu-devel] [PATCH v2 08/12] tcg/s390: Add support for fence List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: bobby.prani@gmail.com, Alexander Graf Cc: Alexander Graf Signed-off-by: Richard Henderson --- 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 e0a60e6..4c63621 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; @@ -2165,6 +2166,13 @@ 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_fence: + /* 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. */ @@ -2286,6 +2294,7 @@ static const TCGTargetOpDef s390_op_defs[] = { { INDEX_op_movcond_i64, { "r", "r", "rC", "r", "0" } }, { INDEX_op_deposit_i64, { "r", "0", "r" } }, + { INDEX_op_fence, { } }, { -1 }, }; -- 2.5.5