Patch Detail
get:
Show a patch.
patch:
Update a patch.
put:
Update a patch.
GET /api/1.1/patches/2230749/?format=api
{ "id": 2230749, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2230749/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430002046.59739-34-richard.henderson@linaro.org/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/1.1/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": "" }, "msgid": "<20260430002046.59739-34-richard.henderson@linaro.org>", "date": "2026-04-30T00:20:32", "name": "[v3,33/47] target/arm: Implement FCVT (FP16 to FP8) for SME", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "a832a5ca8b1d425dce4036a8c48d04bf1a4f2c2f", "submitter": { "id": 72104, "url": "http://patchwork.ozlabs.org/api/1.1/people/72104/?format=api", "name": "Richard Henderson", "email": "richard.henderson@linaro.org" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260430002046.59739-34-richard.henderson@linaro.org/mbox/", "series": [ { "id": 502175, "url": "http://patchwork.ozlabs.org/api/1.1/series/502175/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=502175", "date": "2026-04-30T00:20:06", "name": "target/arm: Implement FEAT_FP8", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/502175/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2230749/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230749/checks/", "tags": {}, "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=linaro.org header.i=@linaro.org header.a=rsa-sha256\n header.s=google header.b=l/SwTU0h;\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 4g5Zj62yGbz1yK1\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 30 Apr 2026 10:26:18 +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 1wIFAR-0007bs-5V; Wed, 29 Apr 2026 20:22:11 -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 <richard.henderson@linaro.org>)\n id 1wIFAN-0007Th-4F\n for qemu-devel@nongnu.org; Wed, 29 Apr 2026 20:22:07 -0400", "from mail-pf1-x436.google.com ([2607:f8b0:4864:20::436])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128)\n (Exim 4.90_1) (envelope-from <richard.henderson@linaro.org>)\n id 1wIFAL-0006Zx-J5\n for qemu-devel@nongnu.org; Wed, 29 Apr 2026 20:22:06 -0400", "by mail-pf1-x436.google.com with SMTP id\n d2e1a72fcca58-82f69a286dbso248741b3a.2\n for <qemu-devel@nongnu.org>; Wed, 29 Apr 2026 17:22:05 -0700 (PDT)", "from stoup.. ([180.233.125.15]) by smtp.gmail.com with ESMTPSA id\n d2e1a72fcca58-834ed5cd3b8sm3461727b3a.16.2026.04.29.17.22.02\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Wed, 29 Apr 2026 17:22:03 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=linaro.org; s=google; t=1777508524; x=1778113324; darn=nongnu.org;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:from:to:cc:subject:date\n :message-id:reply-to;\n bh=qClXpzIkhY6HXQLVy4Ou0WWe411jsSWReuNJ6IrI5vs=;\n b=l/SwTU0hKKhiUIYh7GKhmAlR2Z3CM9S9EmKsNWWzXodLDfgDRmGKgRTvZLe0ZVtLlV\n bq+LhmRReziu0aDsLA2H6bOnhgCiDwBsGdE3Nfn0Uftn/WZEXDG5PJ0fZnVMRQVFtcoh\n wGHm4JMaR8aYOVScKmGR24q3q1EZHTs8kf9HJ1v+J26HAwEWmt3/k8cBjHk9eUF75eVK\n WqS0mCvz3hqsH9LzhK0AA7FO27+WQcFuCmOjbSUKbKBYRqjZWx5xfZNSuBMh5AWT3Bdr\n hHp364JT51tXaAmKfUOyd0lsbtipShu98C9bkOdQAOjDo5c8cllnhjmPRJH8xmiL0uGi\n xcyA==", "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1777508524; x=1778113324;\n h=content-transfer-encoding:mime-version:references:in-reply-to\n :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from\n :to:cc:subject:date:message-id:reply-to;\n bh=qClXpzIkhY6HXQLVy4Ou0WWe411jsSWReuNJ6IrI5vs=;\n b=bavdlqqpf7z0SZf9fNGIFpaCkkkWrfQGgV/5ywp3061duJBpHeb3OaQc/DI7fbsEli\n YacJJpP6WKyJeMAN6L3pw6q1UK3m4BenB3YGb5mBM4aAHAcN+QmDbzk9LCU9IBciuteq\n Ae3V+HAAepR3mn1Cl94B0R4FgjqPZk6QpNJYHMpls593A6Hq/Yx9GzNCFyPFtH2cTAP/\n Hp2msKKnb/r2Rj8XQOc03IyuIYBsqOQCw+rI1iPePA7AvDFTKXqxeXKNlAC6c7YhLzrN\n q9L2ap4rqeYA8DGG0als8qDkNnAi8wl3NXqg/f2azpF6kE69OPdcdkz6zqz5mQppFl7Y\n 8LKg==", "X-Gm-Message-State": "AOJu0YwyDuv44R978qPdb5jbWl0Vre+nk79rzMl/M1GptOzIksHb5UAb\n npZRSZxwGm3RchkzHWEIT+hbKTpY+tOyxefQ0eUva2UkMdUs2+EwjwcK72VsDfEXl41dm79IMdV\n hUZlmDlU=", "X-Gm-Gg": "AeBDievS50ZfKFolJB7mKzEGSr3x4/pvcx5s0cfWn7Axd6ZttJsXNEe8DP4yK8uXXeo\n UrE5sz/vpdSoVOnyFojeSCj3SIuw3Fr9yQJO6iLv4FD7Sr91GmYRGRGX4ARJD2t+dOIfLR133gr\n bwNeUR1w6UOmn2N73C3zLv5aqEeq1t4By5edrGTVqWkldlLqIvbgTaHJn9UwOM/HchdeiOZsFX2\n k3bxr7n0hz5kzOpRrsEbeJJM7uPq/WM+ytTWbLNJ17AdFB44+lqOjML0Q5E++/UifLjVqiGDYzc\n ViRB482tjxXATb8hAjCUQseeV7c8wuDaddFXByr5J1P0uGvu+gbVvj7Fs+3sGzfXtkyezm4dyBm\n GRnuJOGraFUYuTThzA2D8SxVCDsizZSyrq6iwUkS5my08qUBnLuFOHpMtxFZrtqfwlcjpz/UCHo\n vOeuZppHkokHzfbCrlprZJ8jqUOUkrbRc24e7KpTCz", "X-Received": "by 2002:a05:6a00:90a3:b0:82a:65fa:cecf with SMTP id\n d2e1a72fcca58-834fdb0dfcemr862664b3a.4.1777508524072;\n Wed, 29 Apr 2026 17:22:04 -0700 (PDT)", "From": "Richard Henderson <richard.henderson@linaro.org>", "To": "qemu-devel@nongnu.org", "Cc": "qemu-arm@nongnu.org", "Subject": "[PATCH v3 33/47] target/arm: Implement FCVT (FP16 to FP8) for SME", "Date": "Thu, 30 Apr 2026 10:20:32 +1000", "Message-ID": "<20260430002046.59739-34-richard.henderson@linaro.org>", "X-Mailer": "git-send-email 2.43.0", "In-Reply-To": "<20260430002046.59739-1-richard.henderson@linaro.org>", "References": "<20260430002046.59739-1-richard.henderson@linaro.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::436;\n envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x436.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,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\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": "Signed-off-by: Richard Henderson <richard.henderson@linaro.org>\n---\n target/arm/tcg/translate-sme.c | 16 ++++++++++++++++\n target/arm/tcg/sme.decode | 2 ++\n 2 files changed, 18 insertions(+)", "diff": "diff --git a/target/arm/tcg/translate-sme.c b/target/arm/tcg/translate-sme.c\nindex 0cbad3e006..050c3cfefe 100644\n--- a/target/arm/tcg/translate-sme.c\n+++ b/target/arm/tcg/translate-sme.c\n@@ -1556,6 +1556,22 @@ TRANS_FEAT(BF2CVT, aa64_sme2_f8cvt, do_f8cvt, a, gen_helper_sme2_bfcvt_hb, 1)\n TRANS_FEAT(BF1CVTL, aa64_sme2_f8cvt, do_f8cvt, a, gen_helper_sme2_bfcvtl_hb, 0)\n TRANS_FEAT(BF2CVTL, aa64_sme2_f8cvt, do_f8cvt, a, gen_helper_sme2_bfcvtl_hb, 1)\n \n+static bool trans_FCVT_bh(DisasContext *s, arg_zz_n *a)\n+{\n+ if (!dc_isar_feature(aa64_sme2_f8cvt, s)) {\n+ return false;\n+ }\n+ if (fpmr_access_check(s) && sme_sm_enabled_check(s)) {\n+ int svl = streaming_vec_reg_size(s);\n+ tcg_gen_gvec_3_ptr(vec_full_reg_offset(s, a->zd),\n+ vec_full_reg_offset(s, a->zn),\n+ vec_full_reg_offset(s, a->zn + 1),\n+ tcg_env, svl, svl,\n+ FPST_ZA << 2, gen_helper_gvec_fcvt_bh);\n+ }\n+ return true;\n+}\n+\n static bool do_zipuzp_4(DisasContext *s, arg_zz_e *a,\n gen_helper_gvec_2 * const fn[5])\n {\ndiff --git a/target/arm/tcg/sme.decode b/target/arm/tcg/sme.decode\nindex d6192eb59d..a02bcc0e22 100644\n--- a/target/arm/tcg/sme.decode\n+++ b/target/arm/tcg/sme.decode\n@@ -863,6 +863,8 @@ BF2CVT 11000001 111 00110 111000 ..... ....0 @zz_2x1\n BF1CVTL 11000001 011 00110 111000 ..... ....1 @zz_2x1\n BF2CVTL 11000001 111 00110 111000 ..... ....1 @zz_2x1\n \n+FCVT_bh 11000001 001 00100 111000 ....0 ..... @zz_1x2\n+\n ZIP_4 11000001 esz:2 1 10110 111000 ...00 ... 00 \\\n &zz_e zd=%zd_ax4 zn=%zn_ax4\n ZIP_4 11000001 001 10111 111000 ...00 ... 00 \\\n", "prefixes": [ "v3", "33/47" ] }