{"id":2220829,"url":"http://patchwork.ozlabs.org/api/1.1/covers/2220829/?format=json","web_url":"http://patchwork.ozlabs.org/project/opensbi/cover/20260408072123.7543-1-dave.patel@riscstar.com/","project":{"id":67,"url":"http://patchwork.ozlabs.org/api/1.1/projects/67/?format=json","name":"OpenSBI development","link_name":"opensbi","list_id":"opensbi.lists.infradead.org","list_email":"opensbi@lists.infradead.org","web_url":"https://github.com/riscv/opensbi","scm_url":"","webscm_url":""},"msgid":"<20260408072123.7543-1-dave.patel@riscstar.com>","date":"2026-04-08T07:21:20","name":"[v4,0/3] Add eager FP and RISC-V vector context switching support","submitter":{"id":92617,"url":"http://patchwork.ozlabs.org/api/1.1/people/92617/?format=json","name":"Dave Patel","email":"dave.patel@riscstar.com"},"mbox":"http://patchwork.ozlabs.org/project/opensbi/cover/20260408072123.7543-1-dave.patel@riscstar.com/mbox/","series":[{"id":499083,"url":"http://patchwork.ozlabs.org/api/1.1/series/499083/?format=json","web_url":"http://patchwork.ozlabs.org/project/opensbi/list/?series=499083","date":"2026-04-08T07:21:21","name":"Add eager FP and RISC-V vector context switching support","version":1,"mbox":"http://patchwork.ozlabs.org/series/499083/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/covers/2220829/comments/","headers":{"Return-Path":"\n ","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 secure) header.d=lists.infradead.org header.i=@lists.infradead.org\n header.a=rsa-sha256 header.s=bombadil.20210309 header.b=hZgT0efa;\n\tdkim=fail reason=\"signature verification failed\" (2048-bit key;\n unprotected) header.d=riscstar-com.20251104.gappssmtp.com\n header.i=@riscstar-com.20251104.gappssmtp.com header.a=rsa-sha256\n header.s=20251104 header.b=bhaLfK0R;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=none (no SPF record) smtp.mailfrom=lists.infradead.org\n (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org;\n envelope-from=opensbi-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from bombadil.infradead.org (bombadil.infradead.org\n [IPv6:2607:7c80:54:3::133])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4frDzz0yhmz1yD3\n\tfor ; Wed, 08 Apr 2026 17:22:55 +1000 (AEST)","from localhost ([::1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1wANFR-00000008Pn4-0Oxj;\n\tWed, 08 Apr 2026 07:22:49 +0000","from mail-wr1-x436.google.com ([2a00:1450:4864:20::436])\n\tby bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux))\n\tid 1wANFO-00000008Plp-3GKW\n\tfor opensbi@lists.infradead.org;\n\tWed, 08 Apr 2026 07:22:47 +0000","by mail-wr1-x436.google.com with SMTP id\n ffacd0b85a97d-43b949bf4easo337553f8f.0\n for ;\n Wed, 08 Apr 2026 00:22:46 -0700 (PDT)","from Dev-EliteBook.Home (97e782b0.skybroadband.com.\n [151.231.130.176])\n by smtp.gmail.com with ESMTPSA id\n ffacd0b85a97d-43d1e2c5419sm66188083f8f.11.2026.04.08.00.22.44\n (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);\n Wed, 08 Apr 2026 00:22:44 -0700 (PDT)"],"DKIM-Signature":["v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20210309; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-ID:Date:Subject:Cc\n\t:To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:\n\tResent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:\n\tList-Owner; bh=1OKrLgpoHjkd+AQbCmSOSe2LidtlNysifYEywXt2+IY=; b=hZgT0efaQ/cHT1\n\t0y6Wsi6EAbkFspFnzIYAkVB8nA9HUVQEUOARdHcAqxmMo/C6WL7yp+SQNsHlk2m6Wpy315ZDVUOxI\n\t+KnT0xYWwKcbsYRFMtqZZD5e6y+pfMpJWaD/13R0LCrrK1gR2gVcu621h9D+SM1Z/m/NoLxM1TH2b\n\t7eAASRZT6kB/zEMNNGqbIkceo9Bj6P5R614yuGooNij8Bp20vouxlE1lQ/C8C9sg/zjDzTjfoQQYx\n\t8u9309Tuef8wxcuf4oKAF878AExED2YjoK8KUq31kZRDyE25mLKOGyvuwazLVrB11xrIL+0cGR1im\n\tNMtpwbHYWk89upqVelew==;","v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=riscstar-com.20251104.gappssmtp.com; s=20251104; t=1775632965;\n x=1776237765; darn=lists.infradead.org;\n h=content-transfer-encoding:mime-version:message-id:date:subject:cc\n :to:from:from:to:cc:subject:date:message-id:reply-to;\n bh=1B/IcaaYHVEgyDE929r79UQEAIYqo5kDm0Dmd+IzSHg=;\n b=bhaLfK0RaJTglEz5ZnC/FWrno+3IEJzl3u+wVG7gb6m1jm/O7Xw0tCMlX7Qr+HGG7d\n PyN8lWcnJEoSOad+KH3iJkRahA3gg70DY7TGYpgs1xPPCzHxB9jvV90J2hqnpj6VZedc\n w+vXqRjV1LP/uwrxuCLlN6xKbNzFBGjXDhWEwZf9gaLDFSpdLHdnYi8tTX0hftx5vi3Q\n 1ifR9LB3Z3b7w2r8hg9bjS1DEbY3weFUI5An+2NDVQIV9BcWlTCOeNmL/OW6Vm/Nascl\n BpWRpdvQY3rqePkm1QWzPt9w2e7fvutL5I2IIeacvKPvdrZy1/VMHg3HbrtxKDFXFHva\n VxXQ=="],"X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=1e100.net; s=20251104; t=1775632965; x=1776237765;\n h=content-transfer-encoding:mime-version:message-id:date:subject:cc\n :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date\n :message-id:reply-to;\n bh=1B/IcaaYHVEgyDE929r79UQEAIYqo5kDm0Dmd+IzSHg=;\n b=H0Rr19GhgUmB1qE3dYLXp5PtogZvCcBkW78oluWvhn6JQzNWurZVSr7nK7di5K1ngX\n 9wmM1HSwigfJygz6IXZw0CzUarDBBaCizdS0VL+PIRlofp7fxRGlB8OPTOJehp2NCHJC\n Lu+Re62qpCmm+XLPespRw0NXtSxx8eF/Sv7V/Ebcz5uC1k3vCElWhB/lxG+XPugSzw+D\n BUvpIaVP3PItCpsdD5EmwBVIeuH9sbF05IgG8P80/Nln0QAyCXqwLRcNHpoc177E6W1P\n KF6iXkbeRlRihg2bhDTe3mGketPJDy/PEKburf/FuE7SQLsW9YYpUvqwZGsusrk5NA3e\n Cb+Q==","X-Forwarded-Encrypted":"i=1;\n AJvYcCVz51WJTQeFNbeoORoMjTrkpVMdG2B41+RwJqrp9UapM+Gv0xy6X/dYazO/IIbKCQjgTcw2PICR@lists.infradead.org","X-Gm-Message-State":"AOJu0Yx26nARlt2x5CKbZz1hQ5TX/PLtfyq51wzeThW7pFPF0hO+T+tA\n\t5eMrtWjWbVp3TL4SKMqdAO+ZMX7XHk5cwxLPsxKy8YGuhGaZvLoADzdi/ULg5qSCtWA=","X-Gm-Gg":"AeBDiet1OyEvy2DxFofzPjYiykVof7g10vylfY9RddnaSIepMOQsD31mfmszh0RfZx/\n\tJ6IV+XfDFLor6y8cWYLjvgkaDA6Pl/gY0Aehm2eWbJ+4WH6rmTzcZ3G566DxXVvx31tqFS2gr4U\n\theHpA8c92j9p55N7dtPzUWju0A7o4MIDuKJrbIFCUppEVUSXgmA1KN8tdNCthMmnd9gcGRXU8S2\n\tlv3EibQxUsOJl9EBfOkBVBhzBW7FoGRPIofCgqtVUKQKUoOuNjied0QXnxTzDOrwldQGEvmKmWP\n\t2tVIHfhQqZ0n++g0EafniIHrnWrCbJ4N9uI9BvukFk0IkEQlkGhNeelcDINoxmtj5KJqIDAZXWO\n\tT9tkV12sDmfijQQKEH3CXMhwYhEys6AKGl7MC/DtLGV4XcpybG5zSOXWxV3tDvdCzjy0z+fb/Wh\n\tM/V9zsFcyPI0nHJbMLurQ6n+kL/P15+p+m0emf5oMtIGfcA1AmWYoE6y0G6ZTDzNpLgpb/BVf0q\n\tH1VMA==","X-Received":"by 2002:a05:6000:186f:b0:43c:f1da:487d with SMTP id\n ffacd0b85a97d-43d28f8cd5fmr28426379f8f.2.1775632964787;\n Wed, 08 Apr 2026 00:22:44 -0700 (PDT)","From":"dave.patel@riscstar.com","To":"Samuel Holland ","Cc":"Scott Bambrough ,\n\tRobin Randhawa ,\n\tAnup Patel ,\n\tDave Patel ,\n\tRay Mao ,\n\tAnup Patel ,\n\tDhaval ,\n\tPeter Lin ,\n\topensbi@lists.infradead.org,\n\tradim.krcmar@oss.qualcomm.com","Subject":"[PATCH v4 0/3] Add eager FP and RISC-V vector context switching\n support","Date":"Wed, 8 Apr 2026 08:21:20 +0100","Message-ID":"<20260408072123.7543-1-dave.patel@riscstar.com>","X-Mailer":"git-send-email 2.43.0","MIME-Version":"1.0","X-CRM114-Version":"20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ","X-CRM114-CacheID":"sfid-20260408_002246_818458_A18BB8D1 ","X-CRM114-Status":"UNSURE ( 8.32 )","X-CRM114-Notice":"Please train this message.","X-Spam-Score":"-1.9 (-)","X-Spam-Report":"Spam detection software,\n running on the system \"bombadil.infradead.org\",\n has NOT identified this incoming email as spam. The original\n message has been attached to this so you can view it or label\n similar future email. If you have any questions, see\n the administrator of that system for details.\n Content preview: Hi Samuel, Radim,\n Thank you for taking out time and reviewing\n the patches, has been some insightful comment and appreciate your inputs\n and feedback. I have covered all your comments, please can you have a look\n and let me know.\n Content analysis details: (-1.9 points, 5.0 required)\n pts rule name description\n ---- ----------------------\n --------------------------------------------------\n -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no\n trust\n [2a00:1450:4864:20:0:0:0:436 listed in]\n [list.dnswl.org]\n -0.0 SPF_PASS SPF: sender matches SPF record\n 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record\n 0.1 DKIM_SIGNED Message has a DKIM or DK signature,\n not necessarily valid\n -0.1 DKIM_VALID Message has at least one valid DKIM or DK\n signature\n -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n [score: 0.0000]","X-BeenThere":"opensbi@lists.infradead.org","X-Mailman-Version":"2.1.34","Precedence":"list","List-Id":"","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Content-Type":"text/plain; charset=\"us-ascii\"","Content-Transfer-Encoding":"7bit","Sender":"\"opensbi\" ","Errors-To":"opensbi-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org"},"content":"Hi Samuel, Radim,\n Thank you for taking out time and reviewing the patches,\nhas been some insightful comment and appreciate your inputs and feedback.\n\nI have covered all your comments, please can you have a look and let me know.\n\nChanges since v3:\n\nPatch 1 :\n\t-- Added whole registers vs8r/vl8r instead of vse8/vle8 for save/restore.\n\t So removed vse/vle to improve security.\n\t-- I have removed vl/vtype which only save the used registers and instead\n\t using vs8r/vl8r.\n\t-- Init check for vlenb with SBI_MAX_VLENB\n\t-- Updated license information to match with other source files.\n\t-- decluttered all the dependencies of vector related dependencies in\n\t patch 2 and 3 for eg. adding \"({ ... })\" is a superior macro wrapper.\nPatch 2 :\n\t-- Vector related changes moved to patch 1.\nPatch 3 :\n\t-- removed random artifacts and removed vector related changes to patch 1.\n\n\nI have tested this across the 2 s-mode domains doing context switch and both\nfloating point and vector retains the values across the context.\n\nThanks and Regards,\nDave\n\nSigned-off-by: Dave Patel "}