From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 513B8CA0EDC for ; Wed, 20 Aug 2025 16:35:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=9cb3C7zbtyK0cWZCZVXdzfwlrvNHMG9cqMmj98j+v7U=; b=3KjRCT4vIt56ai Yu2LSUnxf6MDYyMTuMYVUZCuHxt9OS4wvbS4xLAZaewCvvZW2Yb2eQeJZEZOs78hj5Le26Sg6MD3u 1pOP0gjC6J9J3LgIr4nl2WbbLKdhR4H4l4nq6VMsrTZTs1Zd+rB97SEeS4sONB2Rom0NmFXOejuV3 H+qoTENLWoa/LK2S8TNKopYbjfaKcaydq/m2n5n5gE1rhnT5SMnHj+2QmKgAR87F1toXePBtTo22Y vXxbq+E/RYP1mcnrUvXyUiK2rpNOAhFNVtLMrbJ4vciXYj4gMimsxN6YCh3SPvou3zB8mCuMrb1vo jGThhYnuYgQt5u0ej2kg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uolmV-0000000EPqU-2Xwe; Wed, 20 Aug 2025 16:35:23 +0000 Received: from mail-pl1-x632.google.com ([2607:f8b0:4864:20::632]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uokEt-0000000EA2X-2r2y for linux-riscv@lists.infradead.org; Wed, 20 Aug 2025 14:56:36 +0000 Received: by mail-pl1-x632.google.com with SMTP id d9443c01a7336-2449978aceaso19768715ad.2 for ; Wed, 20 Aug 2025 07:56:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1755701794; x=1756306594; darn=lists.infradead.org; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:from:to :cc:subject:date:message-id:reply-to; bh=moeebx/JYPecP7+5BXDqI16mVoleF3sa2PSk0SopksM=; b=KsrvFh8hE+l26EBVJAwWGod1YZ/iSCdkSCYZ9FluawmD+8Ux1TZnpwRwcJBSjzHLxk 8CHuaZNTkc84vihgHH3FBoiQl8oRUSW81agIEcLz+CAsv7eWHc1AhxBeX/XaoVQgzu9f YPen4eI7Ns6q/yGHLEprQ//5e4WotDjcmEZ4zDdTlwjSQABYRBJrIbiNBdJomdIOAefS XvufEFEdnUDhZzZrf3f0QX+5VUrig/xD6tJU2f9U7Ha2VsIvTNoJhpbwI7n7KA936qy9 wkVBU0dFMjLdqXRPRNvCW1EoJw1bDJUjZ7rhtgs5HRomwh0nZV/4rZGn5av3yScgslpo nc7Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755701794; x=1756306594; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=moeebx/JYPecP7+5BXDqI16mVoleF3sa2PSk0SopksM=; b=w0WMZfjHPpHZFS1cYMMJVNLD3zFxw5ijHcCIaz8S26mcfUyt6q/Uzmqqg2BVgFr5Op PzWlJdvSkjFDx3MeDahuQ1JiGI6UBVX67NqbhoCyGLqS32EkSrTQCYonOdKsAKYBh2f5 GmLcLwlE4AH6ObLiBVaT95KDAVvRLwCJ+d600jpTThL4S40UEOkcSUmK4D9Vh0DUj2qY /CpO9mDnajOLJ/46ER+Eb9bRhgK+Yx41gya8lNUXEm1UPULzucHrNSnRMONuBKpuAL5I FbhLIQpqO+MQsQ6CxQdXB8Cz/JY+wZ9v0qhyyVTt8NPXGB4D0Ml8MfDjvrXdeItXyc88 IXxA== X-Forwarded-Encrypted: i=1; AJvYcCV2jUfGUILrfu0bduX4SKqankMjzOA2iD/CGrrzJgtJILl1fbPJjz92RqINlnx6SBltf/kAA4WRRWhR+w==@lists.infradead.org X-Gm-Message-State: AOJu0Yx6dmg23DxHbaFLdufExgpd650p7SNTenYip3ck4t0y2Tt+prBy A0NIYFP/p9rc7G2ynF33E7x/zbMdaRZk22ksTGkTo79mTp57BVmBrORN X-Gm-Gg: ASbGncv5ICkN6KskCIDHS3aZG5ijnpZloV76ziv6zamkWArb7C8hTDYWoXmCtU4JmD3 eojg8F/cvnp7AFqo5063jxvY94Grx3q3ZLLri8X0wU0PyIDqf0rTMq+5npC1GeKq3qko/5q80/Q e/lZwtAvW0k5sMxEd8hLdTpesRSuf3YDg2HUi4ThpVncxJTeVALABwVEIjobRvs/mZqYZodIbsZ 4gwFxRNFJvBYCmDv0Po0ld5DPTsBwb1niViW96qjXMnIVfOWNBjn3C90Ezik9TJxfzBtDZGNMEv blLZxImB2VCk2sPYxSBbCLK9tLeq6dsfbPUCdjOfkZtNbSyglMmH2NHZz68UvFLbldPiUUPwBPQ dUcOQVgHa5Fuus0rPZdY52kkvJoWsjnoP X-Google-Smtp-Source: AGHT+IFvmJ+PFgyRTv6iBOk9rxDjBEezlxvSGHL//EVCX7uKCA4RaW440nBfEbxK3UBFWSkUHyyBLA== X-Received: by 2002:a17:903:18a:b0:224:10a2:cae7 with SMTP id d9443c01a7336-245ef25dc0fmr44522095ad.40.1755701794342; Wed, 20 Aug 2025 07:56:34 -0700 (PDT) Received: from localhost ([216.228.127.129]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-245f374595fsm19276835ad.105.2025.08.20.07.56.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 Aug 2025 07:56:33 -0700 (PDT) Date: Wed, 20 Aug 2025 10:56:31 -0400 From: Yury Norov To: Vivian Wang Cc: Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Rasmus Villemoes , Vivian Wang , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, =?utf-8?B?QXlkxLFu?= Mercan Subject: Re: [PATCH 1/6] riscv: Introduce use_alternative_{likely,unlikely} Message-ID: References: <20250820-riscv-altn-helper-wip-v1-0-c3c626c1f7e6@iscas.ac.cn> <20250820-riscv-altn-helper-wip-v1-1-c3c626c1f7e6@iscas.ac.cn> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20250820-riscv-altn-helper-wip-v1-1-c3c626c1f7e6@iscas.ac.cn> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250820_075635_720328_C57D46E6 X-CRM114-Status: GOOD ( 23.44 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gV2VkLCBBdWcgMjAsIDIwMjUgYXQgMDk6NDQ6NDVQTSArMDgwMCwgVml2aWFuIFdhbmcgd3Jv dGU6Cj4gSW50cm9kdWNlIGNvbnZlbmllbmNlIGhlbHBlcnMgdXNlX2FsdGVybmF0aXZlX2xpa2Vs eSgpIGFuZAo+IHVzZV9hbHRlcm5hdGl2ZV91bmxpa2VseSgpIHRvIGltcGxlbWVudCB0aGUgcGF0 dGVybiBvZiB1c2luZyBhc20gZ290byB0bwo+IGNoZWNrIGlmIGFuIGFsdGVybmF0aXZlIGlzIHNl bGVjdGVkLiBFeGlzdGluZyBjb2RlIHdpbGwgYmUgY29udmVydGVkIGluCj4gc3Vic2VxdWVudCBw YXRjaGVzLgo+IAo+IFNpbWlsYXIgdG8gYXJtNjQgYWx0ZXJuYXRpdmVfaGFzX2NhcF97bGlrZWx5 LHVubGlrZWx5fSwgYnV0IGZvciByaXNjdiwKPiBhbHRlcm5hdGl2ZXMgYXJlIG5vdCBhbGwgQ1BV IGNhcGFiaWxpdGllcy4KPiAKPiBTdWdnZXN0ZWQtYnk6IEF5ZMSxbiBNZXJjYW4gPGF5ZGluQG1l cmNhbi5kZXY+Cj4gU2lnbmVkLW9mZi1ieTogVml2aWFuIFdhbmcgPHdhbmdydWlrYW5nQGlzY2Fz LmFjLmNuPgo+IC0tLQo+ICBhcmNoL3Jpc2N2L2luY2x1ZGUvYXNtL2FsdGVybmF0aXZlLW1hY3Jv cy5oIHwgNzMgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysKPiAgMSBmaWxlIGNoYW5nZWQs IDczIGluc2VydGlvbnMoKykKPiAKPiBkaWZmIC0tZ2l0IGEvYXJjaC9yaXNjdi9pbmNsdWRlL2Fz bS9hbHRlcm5hdGl2ZS1tYWNyb3MuaCBiL2FyY2gvcmlzY3YvaW5jbHVkZS9hc20vYWx0ZXJuYXRp dmUtbWFjcm9zLmgKPiBpbmRleCAyMzFkNzc3ZDkzNmMyZDI5Yzg1OGRlY2FhOWEzZmE1ZjE3MmVm YmI4Li5iZTk4MzViNWU0ZWJhMDNkNzZkYjNhNzNkYTE5YWM5ZTI5ODFjNGRiIDEwMDY0NAo+IC0t LSBhL2FyY2gvcmlzY3YvaW5jbHVkZS9hc20vYWx0ZXJuYXRpdmUtbWFjcm9zLmgKPiArKysgYi9h cmNoL3Jpc2N2L2luY2x1ZGUvYXNtL2FsdGVybmF0aXZlLW1hY3Jvcy5oCj4gQEAgLTE1OCw0ICsx NTgsNzcgQEAKPiAgCV9BTFRFUk5BVElWRV9DRkdfMihvbGRfY29udGVudCwgbmV3X2NvbnRlbnRf MSwgdmVuZG9yX2lkXzEsIHBhdGNoX2lkXzEsIENPTkZJR19rXzEsCVwKPiAgCQkJCQluZXdfY29u dGVudF8yLCB2ZW5kb3JfaWRfMiwgcGF0Y2hfaWRfMiwgQ09ORklHX2tfMikKPiAgCj4gKy8qCj4g KyAqIHVzZV9hbHRlcm5hdGl2ZV97bGlrZWx5LHVubGlrZWx5fSgpIHJldHVybnMgdHJ1ZSBpZiB0 aGUgYWx0ZXJuYXRpdmUgaXMKPiArICogYXBwbGllZCBhbmQgZmFsc2Ugb3RoZXJ3aXNlLCBidXQg aW4gYSB3YXkgd2hlcmUgdGhlIGNvbXBpbGVyIGNhbiBvcHRpbWl6ZQo+ICsgKiB0aGlzIGNoZWNr IGRvd24gdG8gYSBub3AgaW5zdHJ1Y3Rpb24gdGhhdCdzIHBhdGNoZWQgaW50byBhIGp1bXAsIG9y IHZpY2UKPiArICogdmVyc2EuCj4gKyAqCj4gKyAqIEFsd2F5cyByZXR1cm5zIGZhbHNlIGlmIHRo ZSBhbHRlcm5hdGl2ZXMgbWVjaGFuaXNtIGlzIG5vdCBhdmFpbGFibGUuCj4gKyAqCj4gKyAqIFVz YWdlIGV4YW1wbGU6Cj4gKyAqICAgaWYgKHVzZV9hbHRlcm5hdGl2ZV9saWtlbHkoMCwgUklTQ1Zf SVNBX1pCQikpCj4gKyAqCj4gKyAqIFNpbWlsYXIgdG8gc3RhdGljIGtleXMsICJsaWtlbHkiIG1l YW5zIHVzZSBhIG5vcCBpZiB0aGUgYWx0ZXJuYXRpdmUgaXMKPiArICogc2VsZWN0ZWQsIGFuZCBq dW1wIGlmIHVuc2VsZWN0ZWQ7ICJ1bmxpa2VseSIgaXMgdGhlIG90aGVyIHdheSBhcm91bmQuCj4g KyAqLwo+ICsKPiArI2lmbmRlZiBfX0FTU0VNQkxFUl9fCj4gKwo+ICsjaW5jbHVkZSA8bGludXgv dHlwZXMuaD4KPiArCj4gKyNpZmRlZiBDT05GSUdfUklTQ1ZfQUxURVJOQVRJVkUKPiArCj4gK3N0 YXRpYyBfX2Fsd2F5c19pbmxpbmUgYm9vbCB1c2VfYWx0ZXJuYXRpdmVfbGlrZWx5KHUxNiB2ZW5k b3JfaWQsIHUzMiBwYXRjaF9pZCkKPiArewo+ICsJQlVJTERfQlVHX09OKCFfX2J1aWx0aW5fY29u c3RhbnRfcCh2ZW5kb3JfaWQpKTsKPiArCUJVSUxEX0JVR19PTighX19idWlsdGluX2NvbnN0YW50 X3AocGF0Y2hfaWQpKTsKPiArCj4gKwlhc20gZ290byhBTFRFUk5BVElWRSgiaiAlbFtub19hbHRd IiwgIm5vcCIsICVbdmVuZG9yX2lkXSwgJVtwYXRjaF9pZF0sIDEpCj4gKwkJIDoKPiArCQkgOiBb dmVuZG9yX2lkXSAiaSIodmVuZG9yX2lkKSwKPiArCQkgICBbcGF0Y2hfaWRdICJpIihwYXRjaF9p ZCkKPiArCQkgOgo+ICsJCSA6IG5vX2FsdCk7Cj4gKwo+ICsJcmV0dXJuIHRydWU7Cj4gKwo+ICtu b19hbHQ6Cj4gKwlyZXR1cm4gZmFsc2U7Cj4gK30KCkFwYXJ0IGZyb20gdGhvc2UgQlVJTERfQlVH X09OKClzLCBpdCBsb29rcyBzaW1pbGFyIHRvCl9fcmlzY3ZfaGFzX2V4dGVuc2lvbl9saWtlbHko KS4gQ2FuIHlvdSBtYWtlIHN1cmUgeW91IGRvbid0IGR1cGxpY2F0ZQppdD8KCklmIHNvLCBjYW4g eW91IGRlc2NyaWJlIHdoYXQncyB0aGUgZGlmZmVyZW5jZSBiZXR3ZWVuIHRob3NlIHR3byBpbiB0 aGUKY29tbWl0IG1lc3NhZ2U/Cgo+ICtzdGF0aWMgX19hbHdheXNfaW5saW5lIGJvb2wgdXNlX2Fs dGVybmF0aXZlX3VubGlrZWx5KHUxNiB2ZW5kb3JfaWQsIHUzMiBwYXRjaF9pZCkKPiArewo+ICsJ QlVJTERfQlVHX09OKCFfX2J1aWx0aW5fY29uc3RhbnRfcCh2ZW5kb3JfaWQpKTsKPiArCUJVSUxE X0JVR19PTighX19idWlsdGluX2NvbnN0YW50X3AocGF0Y2hfaWQpKTsKPiArCj4gKwlhc20gZ290 byhBTFRFUk5BVElWRSgibm9wIiwgImogJWxbYWx0XSIsICVbdmVuZG9yX2lkXSwgJVtwYXRjaF9p ZF0sIDEpCj4gKwkJIDoKPiArCQkgOiBbdmVuZG9yX2lkXSAiaSIodmVuZG9yX2lkKSwKPiArCQkg ICBbcGF0Y2hfaWRdICJpIihwYXRjaF9pZCkKPiArCQkgOgo+ICsJCSA6IGFsdCk7Cj4gKwo+ICsJ cmV0dXJuIGZhbHNlOwo+ICsKPiArYWx0Ogo+ICsJcmV0dXJuIHRydWU7Cj4gK30KClRoaXMgJ3Vu bGlrZWx5JyB2ZXJzaW9uIGlzIGp1c3QgYW4gbmVnYXRpb24gb2YgJ2xpa2VseScgb25lLCBhbmQg aXQKbG9va3MgbGlrZSBhbiBhdHRlbXB0IHRvIHNhdmUgb24gb25lIG5lZ2F0aW9uLiBPbiB0aGUg b3RoZXIgaGFuZCwgdGhlCmZ1bmN0aW9uIGlzIF9fYWx3YXlzX2lubGluZSwgd2hpY2ggbWVhbnMg dGhhdCBjb21waWxlciBzaG91bGQgbm9ybWFsbHkKdGFrZSBjYXJlIG9mIGl0LiBDYW4geW91IHBy b3ZlIHdpdGggb2JqZHVtcCB0aGF0IGl0IHJlYWxseSB3b3JrcyBhcwppbnRlbmRlZD8gSSBtZWFu IHRoYXQgCgogICAgICAgIGlmICh1c2VfYWx0ZXJuYXRpdmVfdW5saWtlbHkoKSkKICAgICAgICAg ICAgICAgIGRvX3NvbWV0aGluZygpOwoKZ2VuZXJhdGVzIGEgYmV0dGVyIGNvZGUgdGhhbiAKICAg ICAgICAKICAgICAgICBpZiAoIXVzZV9hbHRlcm5hdGl2ZV9saWtlbHkoKSkKICAgICAgICAgICAg ICAgIGRvX3NvbWV0aGluZygpOwoKVGhhbmtzLApZdXJ5CgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1yaXNjdiBtYWlsaW5nIGxpc3QKbGludXgt cmlzY3ZAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWls bWFuL2xpc3RpbmZvL2xpbnV4LXJpc2N2Cg==