From nobody Sun May 19 16:31:38 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=linaro.org ARC-Seal: i=1; a=rsa-sha256; t=1690396474; cv=none; d=zohomail.com; s=zohoarc; b=AjDlYAPbZW8avpfG1llw6ygyJBu9Y9xXA8jLrAKEAMvzcjJTKrYEJxrpgEjqspK/V2KHsE4hngekNXJIc5kidectBih2Lpm/NrHn6ou3pjd631Pe6wZ4SmZ/5Q6+j09bKqKCl+2+egGxDo7GbmhSua1nuB6uiPHbdypdOcp1kxI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1690396474; h=Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=MocAb1kiGqDSxbSBtFU2OD7QXuFJdAZtU0eEfpJ5DqY=; b=e2rlAp4wwrrmkwrwvO/iHytoT7a41Q+HYNBwWKHqdSqxW+xu7Pmco5CYaoycbYZMFQiaJOPCtX19H6fGLuZ2QJPrX81Z9sGH2aNvGBxV9a+IXjtb3Pc0qvwYJJNx+CIf22nVKWTPhMSOCbpYBuoboa4/+49cM2tDOfi0bcudW0o= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 169039647446145.4960294817505; Wed, 26 Jul 2023 11:34:34 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qOhom-0006C4-S5; Wed, 26 Jul 2023 12:56:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qOhmI-0005zW-Cu for qemu-devel@nongnu.org; Wed, 26 Jul 2023 12:54:22 -0400 Received: from mail-pf1-x429.google.com ([2607:f8b0:4864:20::429]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qOhmG-0004mV-Mz for qemu-devel@nongnu.org; Wed, 26 Jul 2023 12:54:22 -0400 Received: by mail-pf1-x429.google.com with SMTP id d2e1a72fcca58-686bd857365so47268b3a.3 for ; Wed, 26 Jul 2023 09:54:19 -0700 (PDT) Received: from stoup.. ([2602:ae:1598:4c01:9456:37ab:20dc:17e1]) by smtp.gmail.com with ESMTPSA id b12-20020aa7810c000000b006833b73c749sm11720579pfi.22.2023.07.26.09.54.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Jul 2023 09:54:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1690390458; x=1690995258; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=MocAb1kiGqDSxbSBtFU2OD7QXuFJdAZtU0eEfpJ5DqY=; b=jmk3lOVFLz4Pu9Z+Tf+EBVBHKRBvXOog+dA/y6vKqHEgfjB4r0BdQr1BKvKn3FaPrB mKd6Q+6nDT82al0HL63mkiYwYTEtmbW7hpnshrKQsVeNGqfFUqN05cfREPr0Pi0V94L3 bvYdaDiPGDFw7Nlnm3tOpbcQKxKbFM3z4Qz4lXxtR0uNjVmIpSzVQuuyLs54pyRoqoDF 3ke6+yX5HDYrJJk4xPgoQPbOhSE0/WcI44OwpLdPgGzM9gbcrdO3RAbk/M2AmyJN5X/d /VIon+Lb+j03g03x8mbYdmQKNQJYeynX8BTX066Bwp6g3M6AfHt+E+LoNG4JEZIYNVgo XvFw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690390458; x=1690995258; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=MocAb1kiGqDSxbSBtFU2OD7QXuFJdAZtU0eEfpJ5DqY=; b=ImkSl/k4bittt9LVCXXnjgWd2droFFfkpeBFDEfoZ6QMI8Uqfn+8+CbKuMSHDwuXVK xUuAyoda5fy0NcheUoplXaC2md5nXSbja1oDdla/ubfSBabFwnGQBbPwkK054tiCQvxa HzC7aMRg6GDS600n1CtwdfQYiSA+NiSlxbb5w3wNOlXCB+pbPZlCUJQq7/fdjpq+qwrt jx++GnSWPMFZLLcTE7UgqNMkfJ9ER4ggWOjkD4HPYADIEECDONNi/EYcdzbig3noo71I UyBVTv9iSXyXi+uqcdBR+As8iLZtYsLxOEG1nmz/0lxoanBZZtuOvD2XiY//TZND4zds PPTA== X-Gm-Message-State: ABy/qLZFAv3GNYjAts1VTfVY86x5Zz8uLj86XOikhnCaMPsx5iSG3W4G nDGI0HY1QeKhcOT+zcGq5arfwW0jD8CWQyv8/0Y= X-Google-Smtp-Source: APBJJlEYV5Agvhg8hxFp1+wgvZ2AG3xcpWVzR4kXdnB6LAweMd85OEzVEVe7F/Pb7zLUP/9H2JKNKw== X-Received: by 2002:a05:6a00:14d4:b0:667:85e6:4d1 with SMTP id w20-20020a056a0014d400b0066785e604d1mr3262314pfu.33.1690390458295; Wed, 26 Jul 2023 09:54:18 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH for-8.1] target/arm: Fix MemOp for STGP Date: Wed, 26 Jul 2023 09:54:16 -0700 Message-Id: <20230726165416.309624-1-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::429; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x429.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1690396475723100001 Content-Type: text/plain; charset="utf-8" When converting to decodetree, the code to rebuild mop for the pair only made it into trans_STP and not into trans_STGP. Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1790 Fixes: 8c212eb6594 ("target/arm: Convert load/store-pair to decodetree") Signed-off-by: Richard Henderson --- target/arm/tcg/translate-a64.c | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index ef0c47407a..5fa1257d32 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -3004,6 +3004,9 @@ static bool trans_STGP(DisasContext *s, arg_ldstpair = *a) MemOp mop; TCGv_i128 tmp; =20 + /* STGP only comes in one size. */ + tcg_debug_assert(a->sz =3D=3D MO_64); + if (!dc_isar_feature(aa64_mte_insn_reg, s)) { return false; } @@ -3029,13 +3032,25 @@ static bool trans_STGP(DisasContext *s, arg_ldstpai= r *a) gen_helper_stg(cpu_env, dirty_addr, dirty_addr); } =20 - mop =3D finalize_memop(s, a->sz); - clean_addr =3D gen_mte_checkN(s, dirty_addr, true, false, 2 << a->sz, = mop); + mop =3D finalize_memop(s, MO_64); + clean_addr =3D gen_mte_checkN(s, dirty_addr, true, false, 2 << MO_64, = mop); =20 tcg_rt =3D cpu_reg(s, a->rt); tcg_rt2 =3D cpu_reg(s, a->rt2); =20 - assert(a->sz =3D=3D 3); + /* + * STGP is defined as two 8-byte memory operations and one tag operati= on. + * We implement it as one single 16-byte memory operation for convenie= nce. + * Rebuild mop as for STP. + * TODO: The atomicity with LSE2 is stronger than required. + * Need a form of MO_ATOM_WITHIN16_PAIR that never requires + * 16-byte atomicity. + */ + mop =3D MO_128; + if (s->align_mem) { + mop |=3D MO_ALIGN_8; + } + mop =3D finalize_memop_pair(s, mop); =20 tmp =3D tcg_temp_new_i128(); if (s->be_data =3D=3D MO_LE) { --=20 2.34.1