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GET /api/1.2/patches/2235110/?format=api
{ "id": 2235110, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2235110/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260508-mips-octeon-missing-insns-v2-v3-23-bcbec96357d9@gmail.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.2/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": "<20260508-mips-octeon-missing-insns-v2-v3-23-bcbec96357d9@gmail.com>", "list_archive_url": null, "date": "2026-05-08T15:12:23", "name": "[v3,23/32] target/mips: add Octeon V3MULU instruction", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "12f4c7a5783d89c4a7e28e3d40eb9c23fbb2a182", "submitter": { "id": 66301, "url": "http://patchwork.ozlabs.org/api/1.2/people/66301/?format=api", "name": "James Hilliard", "email": "james.hilliard1@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260508-mips-octeon-missing-insns-v2-v3-23-bcbec96357d9@gmail.com/mbox/", "series": [ { "id": 503407, "url": "http://patchwork.ozlabs.org/api/1.2/series/503407/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=503407", "date": "2026-05-08T15:12:00", "name": "target/mips: add missing Octeon user-mode support", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/503407/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2235110/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2235110/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=oHiyyhN9;\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 4gBt5t5ncGz1yJq\n\tfor <incoming@patchwork.ozlabs.org>; Sat, 09 May 2026 01:17:38 +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 1wLMta-0002p7-3S; Fri, 08 May 2026 11:13:42 -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 1wLMtI-0002hV-Jf\n for qemu-devel@nongnu.org; Fri, 08 May 2026 11:13:26 -0400", "from mail-oa1-x33.google.com ([2001:4860:4864:20::33])\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 1wLMtG-0001lH-3l\n for qemu-devel@nongnu.org; Fri, 08 May 2026 11:13:23 -0400", "by mail-oa1-x33.google.com with SMTP id\n 586e51a60fabf-404254ffe8aso1780342fac.0\n for <qemu-devel@nongnu.org>; Fri, 08 May 2026 08:13:21 -0700 (PDT)", "from\n 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa\n (71-218-113-237.hlrn.qwest.net. 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charset=\"utf-8\"", "Content-Transfer-Encoding": "7bit", "Message-Id": "\n <20260508-mips-octeon-missing-insns-v2-v3-23-bcbec96357d9@gmail.com>", "References": "\n <20260508-mips-octeon-missing-insns-v2-v3-0-bcbec96357d9@gmail.com>", "In-Reply-To": "\n <20260508-mips-octeon-missing-insns-v2-v3-0-bcbec96357d9@gmail.com>", "To": "qemu-devel@nongnu.org", "Cc": "Laurent Vivier <laurent@vivier.eu>, =?utf-8?q?Philippe_Mathieu-Daud?=\n\t=?utf-8?q?=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>, Helge Deller <deller@gmx.de>,\n Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>,\n Pierrick Bouvier <pierrick.bouvier@oss.qualcomm.com>", "X-Mailer": "b4 0.15.2", "Received-SPF": "pass client-ip=2001:4860:4864:20::33;\n envelope-from=james.hilliard1@gmail.com; helo=mail-oa1-x33.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": "V3MULU extends VMULU across all three multiplier operand pairs, adding rt\nand the six partial-product limbs.\n\nReturn the low result while shifting the remaining accumulated limbs back\ninto P[0] through P[5].\n\nSigned-off-by: James Hilliard <james.hilliard1@gmail.com>\n---\nChanges v2 -> v3:\n - Split V3MULU out of the combined Octeon arithmetic and memory\n instruction patch. (requested by Richard Henderson)\n---\n target/mips/helper.h | 1 +\n target/mips/tcg/octeon.decode | 1 +\n target/mips/tcg/octeon_translate.c | 1 +\n target/mips/tcg/op_helper.c | 46 ++++++++++++++++++++++++++++++++++++++\n 4 files changed, 49 insertions(+)", "diff": "diff --git a/target/mips/helper.h b/target/mips/helper.h\nindex 46ccad95c3..08fda55ae1 100644\n--- a/target/mips/helper.h\n+++ b/target/mips/helper.h\n@@ -26,6 +26,7 @@ DEF_HELPER_3(crc32c, tl, tl, tl, i32)\n DEF_HELPER_FLAGS_4(rotx, TCG_CALL_NO_RWG_SE, tl, tl, i32, i32, i32)\n DEF_HELPER_3(octeon_vmulu, i64, env, i64, i64)\n DEF_HELPER_3(octeon_vmm0, i64, env, i64, i64)\n+DEF_HELPER_3(octeon_v3mulu, i64, env, i64, i64)\n \n /* microMIPS functions */\n DEF_HELPER_4(lwm, void, env, tl, tl, i32)\ndiff --git a/target/mips/tcg/octeon.decode b/target/mips/tcg/octeon.decode\nindex 8a909ffcee..54ca92a654 100644\n--- a/target/mips/tcg/octeon.decode\n+++ b/target/mips/tcg/octeon.decode\n@@ -52,6 +52,7 @@ MTM1 011100 rs:5 rt:5 00000 00000 001100 &r2\n MTM2 011100 rs:5 rt:5 00000 00000 001101 &r2\n VMULU 011100 ..... ..... ..... 00000 001111 @r3\n VMM0 011100 ..... ..... ..... 00000 010000 @r3\n+V3MULU 011100 ..... ..... ..... 00000 010001 @r3\n \n &saa base rt\n @saa ...... base:5 rt:5 ................ &saa\ndiff --git a/target/mips/tcg/octeon_translate.c b/target/mips/tcg/octeon_translate.c\nindex c1dd03debd..fe1ddeb973 100644\n--- a/target/mips/tcg/octeon_translate.c\n+++ b/target/mips/tcg/octeon_translate.c\n@@ -314,3 +314,4 @@ TRANS(MTP1, trans_mtp, 1);\n TRANS(MTP2, trans_mtp, 2);\n TRANS(VMULU, trans_vmul, gen_helper_octeon_vmulu);\n TRANS(VMM0, trans_vmul, gen_helper_octeon_vmm0);\n+TRANS(V3MULU, trans_vmul, gen_helper_octeon_v3mulu);\ndiff --git a/target/mips/tcg/op_helper.c b/target/mips/tcg/op_helper.c\nindex a1465068af..e4107a304c 100644\n--- a/target/mips/tcg/op_helper.c\n+++ b/target/mips/tcg/op_helper.c\n@@ -192,6 +192,52 @@ uint64_t helper_octeon_vmm0(CPUMIPSState *env, uint64_t rs, uint64_t rt)\n return lo;\n }\n \n+uint64_t helper_octeon_v3mulu(CPUMIPSState *env, uint64_t rs, uint64_t rt)\n+{\n+ uint64_t lo, hi;\n+ uint64_t sum[7] = {};\n+\n+ mulu64(&lo, &hi, env->active_tc.octeon.MPL[0], rs);\n+ sum[0] = lo;\n+ sum[1] = hi;\n+\n+ mulu64(&lo, &hi, env->active_tc.octeon.MPL[1], rs);\n+ octeon_add_limb(sum, 7, lo, 1);\n+ octeon_add_limb(sum, 7, hi, 2);\n+\n+ mulu64(&lo, &hi, env->active_tc.octeon.MPL[2], rs);\n+ octeon_add_limb(sum, 7, lo, 2);\n+ octeon_add_limb(sum, 7, hi, 3);\n+\n+ mulu64(&lo, &hi, env->active_tc.octeon.MPL[3], rs);\n+ octeon_add_limb(sum, 7, lo, 3);\n+ octeon_add_limb(sum, 7, hi, 4);\n+\n+ mulu64(&lo, &hi, env->active_tc.octeon.MPL[4], rs);\n+ octeon_add_limb(sum, 7, lo, 4);\n+ octeon_add_limb(sum, 7, hi, 5);\n+\n+ mulu64(&lo, &hi, env->active_tc.octeon.MPL[5], rs);\n+ octeon_add_limb(sum, 7, lo, 5);\n+ octeon_add_limb(sum, 7, hi, 6);\n+\n+ octeon_add_limb(sum, 7, rt, 0);\n+ octeon_add_limb(sum, 7, env->active_tc.octeon.P[0], 0);\n+ octeon_add_limb(sum, 7, env->active_tc.octeon.P[1], 1);\n+ octeon_add_limb(sum, 7, env->active_tc.octeon.P[2], 2);\n+ octeon_add_limb(sum, 7, env->active_tc.octeon.P[3], 3);\n+ octeon_add_limb(sum, 7, env->active_tc.octeon.P[4], 4);\n+ octeon_add_limb(sum, 7, env->active_tc.octeon.P[5], 5);\n+\n+ env->active_tc.octeon.P[0] = sum[1];\n+ env->active_tc.octeon.P[1] = sum[2];\n+ env->active_tc.octeon.P[2] = sum[3];\n+ env->active_tc.octeon.P[3] = sum[4];\n+ env->active_tc.octeon.P[4] = sum[5];\n+ env->active_tc.octeon.P[5] = sum[6];\n+ return sum[0];\n+}\n+\n /* these crc32 functions are based on target/loongarch/tcg/op_helper.c */\n target_ulong helper_crc32(target_ulong val, target_ulong m, uint32_t sz)\n {\n", "prefixes": [ "v3", "23/32" ] }