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 2B091C433F5 for ; Thu, 17 Feb 2022 01:56:44 +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:Date: Message-ID:From:References:CC:To:Subject:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=jMaWVzBgefVEd/PrWsL7JXDXgR7gSBOOF+YlCynTKNg=; b=Eq8OTMQLoUmzer0eiWOhB5i+or w59JrNacWOLPioProhym85IQOg9kzQ5STzXoJLbrQyXJTphyvbvRnQmXztVgO3zleuaVdp3owuUM7 sFISZb3/AIIZUb67w6cXPidl3wyPZ2njU6TsFbGRsXDeNvUBqFU/UybcpaEJuWXXcnxAnI/FgATSh WZpw4fxPhE5o9kubPZcOdH5xemnuWTfn49DpPaRTJoFCv4AmlriQk+iuh0aPdXbP6GnDW0810rhnH XeTfl5E7k9O+oX0xx1jaxxYchjO1ijbFosZnT+pGiiMxwA5soK0AxW/9QyUGKedQ//z7ykpjQU06r 5LmZ5g+w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nKW0z-008hBg-2q; Thu, 17 Feb 2022 01:55:25 +0000 Received: from szxga08-in.huawei.com ([45.249.212.255]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nKW0u-008hA8-87 for linux-arm-kernel@lists.infradead.org; Thu, 17 Feb 2022 01:55:22 +0000 Received: from dggpeml500025.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4Jzd896mdkz1FDH3; Thu, 17 Feb 2022 09:50:49 +0800 (CST) Received: from [10.174.176.117] (10.174.176.117) by dggpeml500025.china.huawei.com (7.185.36.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Thu, 17 Feb 2022 09:55:11 +0800 Subject: Re: [PATCH bpf-next v3 2/4] arm64: insn: add encoders for atomic operations To: Will Deacon , Daniel Borkmann CC: Alexei Starovoitov , Mark Rutland , Martin KaFai Lau , Yonghong Song , Andrii Nakryiko , Song Liu , "David S . Miller" , John Fastabend , , , Zi Shen Lim , Catalin Marinas , Julien Thierry , Ard Biesheuvel , References: <20220129220452.194585-1-houtao1@huawei.com> <20220129220452.194585-3-houtao1@huawei.com> <4524da71-3977-07db-bd6e-cebd1c539805@iogearbox.net> <20220216171602.GA10877@willie-the-truck> From: Hou Tao Message-ID: <9f515f08-6360-0dde-5d26-80b36b7ac525@huawei.com> Date: Thu, 17 Feb 2022 09:55:11 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.0 MIME-Version: 1.0 In-Reply-To: <20220216171602.GA10877@willie-the-truck> Content-Language: en-US X-Originating-IP: [10.174.176.117] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml500025.china.huawei.com (7.185.36.35) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220216_175520_700655_B3CFF6AB X-CRM114-Status: GOOD ( 16.57 ) X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SGksCgpPbiAyLzE3LzIwMjIgMToxNiBBTSwgV2lsbCBEZWFjb24gd3JvdGU6Cj4gT24gRnJpLCBG ZWIgMTEsIDIwMjIgYXQgMDM6Mzk6NDhQTSArMDEwMCwgRGFuaWVsIEJvcmttYW5uIHdyb3RlOgo+ PiBPbiAxLzI5LzIyIDExOjA0IFBNLCBIb3UgVGFvIHdyb3RlOgo+Pj4gSXQgaXMgYSBwcmVwYXJh dGlvbiBwYXRjaCBmb3IgZUJQRiBhdG9taWMgc3VwcG9ydHMgdW5kZXIgYXJtNjQuIGVCUEYKPj4+ IG5lZWRzIHN1cHBvcnQgYXRvbWljWzY0XV9mZXRjaF9hZGQsIGF0b21pY1s2NF1fW2ZldGNoX117 YW5kLG9yLHhvcn0gYW5kCj4+PiBhdG9taWNbNjRdX3t4Y2hnfGNtcHhjaGd9LiBUaGUgb3JkZXJp bmcgc2VtYW50aWNzIG9mIGVCUEYgYXRvbWljcyBhcmUKPj4+IHRoZSBzYW1lIHdpdGggdGhlIGlt cGxlbWVudGF0aW9ucyBpbiBsaW51eCBrZXJuZWwuCj4+Pgo+Pj4gQWRkIHRocmVlIGhlbHBlcnMg dG8gc3VwcG9ydCBMRENMUi9MREVPUi9MRFNFVC9TV1AsIENBUyBhbmQgRE1CCj4+PiBpbnN0cnVj dGlvbnMuIFNUQUREL1NUQ0xSL1NURU9SL1NUU0VUIGFyZSBzaW1wbHkgZW5jb2RlZCBhcyBhbGlh c2VzIGZvcgo+Pj4gTERBREQvTERDTFIvTERFT1IvTERTRVQgd2l0aCBYWlIgYXMgdGhlIGRlc3Rp bmF0aW9uIHJlZ2lzdGVyLCBzbyBubyBleHRyYQo+Pj4gaGVscGVyIGlzIGFkZGVkLiBhdG9taWNf ZmV0Y2hfYWRkKCkgYW5kIG90aGVyIGF0b21pYyBvcHMgbmVlZHMgc3VwcG9ydCBmb3IKPj4+IFNU TFhSIGluc3RydWN0aW9uLCBzbyBleHRlbmQgZW51bSBhYXJjaDY0X2luc25fbGRzdF90eXBlIHRv IGRvIHRoYXQuCj4+Pgo+Pj4gTERBREQvTERFT1IvTERTRVQvU1dQIGFuZCBDQVMgaW5zdHJ1Y3Rp b25zIGFyZSBvbmx5IGF2YWlsYWJsZSB3aGVuIExTRQo+Pj4gYXRvbWljcyBpcyBlbmFibGVkLCBz byBqdXN0IHJldHVybiBBQVJDSDY0X0JSRUFLX0ZBVUxUIGRpcmVjdGx5IGluCj4+PiB0aGVzZSBu ZXdseS1hZGRlZCBoZWxwZXJzIGlmIENPTkZJR19BUk02NF9MU0VfQVRPTUlDUyBpcyBkaXNhYmxl ZC4KPj4+Cj4+PiBTaWduZWQtb2ZmLWJ5OiBIb3UgVGFvIDxob3V0YW8xQGh1YXdlaS5jb20+Cj4+ IEhleSBNYXJrIC8gQXJkIC8gV2lsbCAvIENhdGFsaW4gb3Igb3RoZXJzLCBjb3VsZCB3ZSBnZXQg YW4gQWNrIG9uIHBhdGNoIDEgJiAyCj4+IGF0IG1pbiBpZiBpdCBsb29rcyBnb29kIHRvIHlvdT8K PiBJIGNoZWNrZWQgdGhlIGluc3RydWN0aW9uIGVuY29kaW5ncyBpbiBwYXRjaGVzIDEgYW5kIDIg YW5kIHRoZXkgYWxsIGxvb2sKPiBmaW5lIHRvIG1lLiBIb3dldmVyLCBhZnRlciBhcHBseWluZyB0 aG9zZSB0d28gbG9jYWxseSBJIGdldCBhIGJ1aWxkIGZhaWx1cmU6Cj4KPiAgIHwgSW4gZmlsZSBp bmNsdWRlZCBmcm9tIGFyY2gvYXJtNjQvbmV0L2JwZl9qaXRfY29tcC5jOjIzOgo+ICAgfCBhcmNo L2FybTY0L25ldC9icGZfaml0X2NvbXAuYzogSW4gZnVuY3Rpb24g4oCYYnVpbGRfaW5zbuKAmToK PiAgIHwgYXJjaC9hcm02NC9uZXQvYnBmX2ppdC5oOjk0OjI6IGVycm9yOiBpbXBsaWNpdCBkZWNs YXJhdGlvbiBvZiBmdW5jdGlvbiDigJhhYXJjaDY0X2luc25fZ2VuX3N0YWRk4oCZOyBkaWQgeW91 IG1lYW4g4oCYYWFyY2g2NF9pbnNuX2dlbl9hZHLigJk/IFstV2Vycm9yPWltcGxpY2l0LWZ1bmN0 aW9uLWRlY2xhcmF0aW9uXQo+ICAgfCAgICA5NCB8ICBhYXJjaDY0X2luc25fZ2VuX3N0YWRkKFJu LCBScywgQTY0X1NJWkUoc2YpKQo+ICAgfCAgICAgICB8ICBefn5+fn5+fn5+fn5+fn5+fn5+fn5+ Cj4gICB8IGFyY2gvYXJtNjQvbmV0L2JwZl9qaXRfY29tcC5jOjkxMjo5OiBub3RlOiBpbiBleHBh bnNpb24gb2YgbWFjcm8g4oCYQTY0X1NUQURE4oCZCj4gICB8ICAgOTEyIHwgICAgZW1pdChBNjRf U1RBREQoaXNkdywgcmVnLCBzcmMpLCBjdHgpOwo+ICAgfCAgICAgICB8ICAgICAgICAgXn5+fn5+ fn5+Cj4gICB8IGNjMTogc29tZSB3YXJuaW5ncyBiZWluZyB0cmVhdGVkIGFzIGVycm9ycwpUaGFu a3MgZm9yIHlvdXIgcmV2aWV3LiBUaGUgYnVpbGQgZmFpbHVyZSBpcyBteSBmYXVsdC4gSSB1cGRh dGUgQTY0X1NUQUREKCkgaW4KcGF0Y2ggMyBpbnN0ZWFkIG9mIHBhdGNoIDIKYWZ0ZXIgcmVwbGFj aW5nIGFhcmNoNjRfaW5zbl9nZXRfc3RhZGQoKSBieSBhYXJjaDY0X2luc25fZ2VuX2F0b21pY19s ZF9vcCgpLCBhbmQKd2lsbCBmaXggaXQgaW4gdjQuIElmIHlvdQphcmUgdHJ5aW5nIHRvIHRlc3Qg dGhlIGVuY29kZXIsIEkgc3VnZ2VzdCB5b3UgdG8gYXBwbHkgcGF0Y2ggMX4zLgoKUmVnYXJkcywK VGFvCj4gV2lsbAo+IC4KCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxp c3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0 aW5mby9saW51eC1hcm0ta2VybmVsCg==