Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/patches/2225871/?format=api
{ "id": 2225871, "url": "http://patchwork.ozlabs.org/api/patches/2225871/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260421-mips-octeon-missing-insns-v2-v2-2-a0791df188c9@gmail.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260421-mips-octeon-missing-insns-v2-v2-2-a0791df188c9@gmail.com>", "list_archive_url": null, "date": "2026-04-21T17:27:29", "name": "[v2,02/13] target/mips: fix Octeon arithmetic destination handling", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "a43b20758bc73fa8331a4a341fe03f2ea7de94ad", "submitter": { "id": 66301, "url": "http://patchwork.ozlabs.org/api/people/66301/?format=api", "name": "James Hilliard", "email": "james.hilliard1@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260421-mips-octeon-missing-insns-v2-v2-2-a0791df188c9@gmail.com/mbox/", "series": [ { "id": 500858, "url": "http://patchwork.ozlabs.org/api/series/500858/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500858", "date": "2026-04-21T17:27:27", "name": "target/mips: add missing Octeon user-mode support", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/500858/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2225871/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2225871/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=BGOc3Edi;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists1p.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists1p.gnu.org (lists1p.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g0Tqp315qz1yHB\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 22 Apr 2026 03:29:26 +1000 (AEST)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists1p.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1wFEtQ-00041x-S0; Tue, 21 Apr 2026 13:28:12 -0400", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists1p.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <james.hilliard1@gmail.com>)\n id 1wFEt5-0003mD-H5\n for qemu-devel@nongnu.org; Tue, 21 Apr 2026 13:27:53 -0400", "from mail-oa1-x2b.google.com ([2001:4860:4864:20::2b])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from <james.hilliard1@gmail.com>)\n id 1wFEsw-0006h0-Me\n for qemu-devel@nongnu.org; Tue, 21 Apr 2026 13:27:44 -0400", "by mail-oa1-x2b.google.com with SMTP id\n 586e51a60fabf-415e568a7ecso1911196fac.0\n for <qemu-devel@nongnu.org>; Tue, 21 Apr 2026 10:27:42 -0700 (PDT)", "from mac.localdomain (97-118-149-104.hlrn.qwest.net.\n [97.118.149.104]) by smtp.gmail.com with ESMTPSA id\n 586e51a60fabf-42b8fe2c52bsm12209290fac.0.2026.04.21.10.27.40\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Tue, 21 Apr 2026 10:27:40 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=gmail.com; s=20251104; t=1776792461; x=1777397261; darn=nongnu.org;\n h=cc:to:in-reply-to:references:message-id:content-transfer-encoding\n :mime-version:subject:date:from:from:to:cc:subject:date:message-id\n :reply-to; bh=Gu2YLJ24XV2eW3iG8BpKQlGIGVRYDVb1RgP8oSGX5xg=;\n b=BGOc3Edi6E5jfO0NLq6/pSZ/ajRljuiF3REC0u5SCga9jRdAoBwxChQ+d7upH13C9T\n hdkN5nNS9oI+hgGeIMgIcV5KoYq72HHs5LcWUjwWDzWsw6+ihPrk8DEagPa1Y/zFjWXz\n hYlgACWFuCOGYeJAd3GoTtMjAMxUXx+jvYF4X1LTpoHSIs4wjhdGJFkSwM0Pi7QDNMg2\n c7RsP59DzOuZ2p2Pv9nfjlGIt/IraabifIsKmbNcnBsaA25sm5FWu8b4soH4PL0TiYgp\n cGT9q/XC8VH0jRKOO/lu9l/UjQmwu48fwrZmr5c/oAFivApU+iwYrt1u3E4DJB30MHJa\n hk7A==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1776792461; x=1777397261;\n h=cc:to:in-reply-to:references:message-id:content-transfer-encoding\n :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to\n :cc:subject:date:message-id:reply-to;\n bh=Gu2YLJ24XV2eW3iG8BpKQlGIGVRYDVb1RgP8oSGX5xg=;\n b=iTYoJiklclVfIdsVxvgkqsoue2HUtRlV/bCG6TdGC7qbxC2FxX9eAj8ODMacO4WZDU\n u/rq5d7zXaorWoVRfnDAt3YBgfKSLxolPbQEUVDqma82D90LAQtzu9M8+u4ebq4d0rN+\n 4O1pD9XvRa12XUrrkCbUGCx+6j5JurMkZ2NCX/mTCR0wwf60pZCqvbPiV6UiQ/kcJLSd\n TAnvXeMVMFOhpUNZWBXjkRyprnfoeGE1neeey4PVirobMgnGOVl+tOL2Hc97B7GrE3CM\n UFojQ6/iT58B4TnQ65aE2ssrgCZ51BKRELC75ILspvKnsSO7RBWZQr0zwTER7Uute30j\n Wjcw==", "X-Gm-Message-State": "AOJu0YzUQFXYh8HWRQrCtDzC85ozfCEvA8fD4wi6c2RZ1UWXkN5dT8B7\n +lyxquitcQ376B6+8mpn/qQMqf6SJ5U25Iu/gIzTxlLzszScu5b02PhL", "X-Gm-Gg": "AeBDieu1WsDpLJ4lHXDB2lTxAwtXgyd/3sUAjidyDiw0WvseWps4p6e8lmemumL3qYF\n y/QF2XW20lnmdhvSYfiUtfHsaT6EaFdHRan/gYWM4Vw6brbnH88xwPkKjHI/MBRSA+gFPyl8Iss\n 9PTeu7728cxNJedmOOWS0q//Kg1surJnuI4iiPG4NNHOmRuFiRh4Lb0iz9gEFkBLGWYwrx6EqlG\n ZArmeJ+9eu0dbFofOgXXBKMw3x74qdMIEUIBu6rQ6o/xcSaWa8aeo55BSqUQg75Hg2eJ5ydigW4\n CGsQnqaXT0I++O0YnkP6+kG9t20bAK9iu4o8/DwqfVpOXgkkBxG/IrF6z2zzAVQRQRyZQoWhsUe\n KJNdAvT236V+Fj+DVVlpeGimkCqKpGPiviB3h2OO5QHTssydkQ+Xzm+cAh8G3q7sOgEWkEmTnCz\n CArpltNvzoYQk+YeMXOk/A9kCl8wfgrXv29mPrKjNt2J2VHxym63/Bym1owHhYrVuhzkR6djdC4\n mMkWyZqrXMPrU//ziiIl1gQ3ke1fh4mRUfD0iuVJsrzrBSjY2hNssze5Bb0wJxOdCe29UyESr5Z\n MUD484BY15/pF2lO", "X-Received": "by 2002:a05:6871:384e:b0:42c:2464:4ec3 with SMTP id\n 586e51a60fabf-42c2466f612mr2412690fac.38.1776792461139;\n Tue, 21 Apr 2026 10:27:41 -0700 (PDT)", "From": "James Hilliard <james.hilliard1@gmail.com>", "Date": "Tue, 21 Apr 2026 11:27:29 -0600", "Subject": "[PATCH v2 02/13] target/mips: fix Octeon arithmetic destination\n handling", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "8bit", "Message-Id": "\n <20260421-mips-octeon-missing-insns-v2-v2-2-a0791df188c9@gmail.com>", "References": "\n <20260421-mips-octeon-missing-insns-v2-v2-0-a0791df188c9@gmail.com>", "In-Reply-To": "\n <20260421-mips-octeon-missing-insns-v2-v2-0-a0791df188c9@gmail.com>", "To": "qemu-devel@nongnu.org", "Cc": "Laurent Vivier <laurent@vivier.eu>,\n Pierrick Bouvier <pierrick.bouvier@linaro.org>, =?utf-8?q?Philippe_Mathieu?=\n\t=?utf-8?q?-Daud=C3=A9?= <philmd@linaro.org>,\n Aurelien Jarno <aurelien@aurel32.net>,\n Jiaxun Yang <jiaxun.yang@flygoat.com>,\n Aleksandar Rikalo <arikalo@gmail.com>, Huacai Chen <chenhuacai@kernel.org>,\n James Hilliard <james.hilliard1@gmail.com>", "X-Mailer": "b4 0.15.2", "Received-SPF": "pass client-ip=2001:4860:4864:20::2b;\n envelope-from=james.hilliard1@gmail.com; helo=mail-oa1-x2b.google.com", "X-Spam_score_int": "-17", "X-Spam_score": "-1.8", "X-Spam_bar": "-", "X-Spam_report": "(-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 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": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "BADDU and DMUL write their results to rd, not rt. Avoid treating rt ==\n$zero as a nop, and route writes through gen_store_gpr() so rd == $zero\nis handled consistently.\n\nSigned-off-by: James Hilliard <james.hilliard1@gmail.com>\n---\nChanges v1 -> v2:\n - Split the BADDU/DMUL destination handling fix out of the Octeon\n arithmetic instruction patch. (suggested by Philippe Mathieu-Daudé)\n---\n target/mips/tcg/octeon_translate.c | 12 +++++++-----\n 1 file changed, 7 insertions(+), 5 deletions(-)", "diff": "diff --git a/target/mips/tcg/octeon_translate.c b/target/mips/tcg/octeon_translate.c\nindex b2eca29e06..41e0d770f5 100644\n--- a/target/mips/tcg/octeon_translate.c\n+++ b/target/mips/tcg/octeon_translate.c\n@@ -45,7 +45,7 @@ static bool trans_BADDU(DisasContext *ctx, arg_BADDU *a)\n {\n TCGv t0, t1;\n \n- if (a->rt == 0) {\n+ if (a->rd == 0) {\n /* nop */\n return true;\n }\n@@ -55,8 +55,9 @@ static bool trans_BADDU(DisasContext *ctx, arg_BADDU *a)\n gen_load_gpr(t0, a->rs);\n gen_load_gpr(t1, a->rt);\n \n- tcg_gen_add_tl(t0, t0, t1);\n- tcg_gen_andi_i64(cpu_gpr[a->rd], t0, 0xff);\n+ tcg_gen_add_i64(t0, t0, t1);\n+ tcg_gen_andi_i64(t0, t0, 0xff);\n+ gen_store_gpr(t0, a->rd);\n return true;\n }\n \n@@ -64,7 +65,7 @@ static bool trans_DMUL(DisasContext *ctx, arg_DMUL *a)\n {\n TCGv t0, t1;\n \n- if (a->rt == 0) {\n+ if (a->rd == 0) {\n /* nop */\n return true;\n }\n@@ -74,7 +75,8 @@ static bool trans_DMUL(DisasContext *ctx, arg_DMUL *a)\n gen_load_gpr(t0, a->rs);\n gen_load_gpr(t1, a->rt);\n \n- tcg_gen_mul_i64(cpu_gpr[a->rd], t0, t1);\n+ tcg_gen_mul_i64(t0, t0, t1);\n+ gen_store_gpr(t0, a->rd);\n return true;\n }\n \n", "prefixes": [ "v2", "02/13" ] }