From patchwork Thu Sep 8 07:25:13 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Leon Alrae X-Patchwork-Id: 9320691 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id E705860231 for ; Thu, 8 Sep 2016 08:12:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D9BD029614 for ; Thu, 8 Sep 2016 08:12:56 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CE0A4296CE; Thu, 8 Sep 2016 08:12:56 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 433F529614 for ; Thu, 8 Sep 2016 08:12:56 +0000 (UTC) Received: from localhost ([::1]:46127 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bhuS7-00026S-Cb for patchwork-qemu-devel@patchwork.kernel.org; Thu, 08 Sep 2016 04:12:55 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41786) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bhtiJ-000230-1r for qemu-devel@nongnu.org; Thu, 08 Sep 2016 03:25:36 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bhtiD-0005GQ-Ty for qemu-devel@nongnu.org; Thu, 08 Sep 2016 03:25:33 -0400 Received: from mailapp01.imgtec.com ([195.59.15.196]:37201) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bhtiD-0005G7-OB for qemu-devel@nongnu.org; Thu, 08 Sep 2016 03:25:29 -0400 Received: from hhmail02.hh.imgtec.org (unknown [10.100.10.20]) by Forcepoint Email with ESMTPS id E9637A17405E0; Thu, 8 Sep 2016 08:25:15 +0100 (IST) Received: from hhmipssw204.hh.imgtec.org (10.100.21.121) by hhmail02.hh.imgtec.org (10.100.10.20) with Microsoft SMTP Server (TLS) id 14.3.294.0; Thu, 8 Sep 2016 08:25:18 +0100 From: Leon Alrae To: Date: Thu, 8 Sep 2016 08:25:13 +0100 Message-ID: <1473319513-10742-1-git-send-email-leon.alrae@imgtec.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.100.21.121] X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 195.59.15.196 Subject: [Qemu-devel] [PATCH] target-mips: generate fences 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: aurelien@aurel32.net Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Make use of memory barrier TCG opcode in MIPS front end. Signed-off-by: Leon Alrae Reviewed-by: Richard Henderson --- This patch complements the following series: https://lists.nongnu.org/archive/html/qemu-devel/2016-07/msg03283.html --- target-mips/translate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/target-mips/translate.c b/target-mips/translate.c index c212e4f..f4513bf 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -13384,7 +13384,7 @@ static void gen_pool32axf (CPUMIPSState *env, DisasContext *ctx, int rt, int rs) case 0x2d: switch (minor) { case SYNC: - /* NOP */ + tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); break; case SYSCALL: generate_exception_end(ctx, EXCP_SYSCALL); @@ -17201,7 +17201,7 @@ static void decode_opc_special(CPUMIPSState *env, DisasContext *ctx) break; case OPC_SYNC: check_insn(ctx, ISA_MIPS2); - /* Treat as NOP. */ + tcg_gen_mb(TCG_MO_ALL | TCG_BAR_SC); break; #if defined(TARGET_MIPS64)