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 048CBC433F5 for ; Wed, 16 Feb 2022 17:17:27 +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=kfBFDukH0y+XcZPGEsYqU20RXTmH9emsASq4/MdHm8A=; b=w5CoyW6JUbNl5b +oAhtkePSTGQMLmCK2BadyXxqZWJzaIxkvvTxXvI31mxrQAdDhd5Mxm82PG670PmB+5g5zbMLVdRf 72mK4zhaE5Vven+3qPferqpe8sjakg82Ob+tDtwhfFvLk/uG8A4z/044Jd+QpZ27WjGT/DK5cHYUq 67uuZZpp690aTHRGzBbMv6zsqDBT9omSzZkDkRINx98Sv1OZm1f7dXbIvDik6T/eDQifH2Hw2uCZs Mtbg3QvlPQzdR05ySmNYOzp/JNUjaud4Ahxl1gfCpKY/aIaqjaBIW2s3M4rdNaLjisf3I5ugQA5lH m/Q2kMHpi/hyWVXHmK7g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nKNuc-007tA8-Dt; Wed, 16 Feb 2022 17:16:18 +0000 Received: from ams.source.kernel.org ([2604:1380:4601:e00::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nKNuX-007t7p-Iv for linux-arm-kernel@lists.infradead.org; Wed, 16 Feb 2022 17:16:16 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 9C63FB81F99; Wed, 16 Feb 2022 17:16:11 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2545DC340E8; Wed, 16 Feb 2022 17:16:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645031770; bh=H8UzL8cAWXsf7LlwEbF/oBmPBoQ/jM+fAqEB1ENwlTU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=QCJxZWtmlxBfPdaYYXaEiu1ET6Zfkb3z6DZ3Mv+Xgg6BuSO9SAXboaeKo4vpQJRYL u89kcDmK8UCOVLqV3Yby+J9O9jHW8U4wGTEi9Rejt0daCOsEmSKKjXYxh8S/jKXOzb 5bNCoFLwjInMq69o5aOeNhLlQm9lqT7AIk93GPeVhYbrJDOD51c3Bt+s9cv/JfqGEj pti01SRHyuCotOcPEjp9uN4kmXxpKLsIrBRh3vpFDn/J7Wxly5m1DWcB0UlrT9tExk 6F8wPA/57ugsh0i8446d6SKex0V9tIOXnPuYbYxvZf14WJMvF9qip3Fu4RltTPBgl5 /3EEsFDbwKbdA== Date: Wed, 16 Feb 2022 17:16:02 +0000 From: Will Deacon To: Daniel Borkmann Cc: Hou Tao , Alexei Starovoitov , Mark Rutland , Martin KaFai Lau , Yonghong Song , Andrii Nakryiko , Song Liu , "David S . Miller" , John Fastabend , netdev@vger.kernel.org, bpf@vger.kernel.org, Zi Shen Lim , Catalin Marinas , Julien Thierry , Ard Biesheuvel , linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH bpf-next v3 2/4] arm64: insn: add encoders for atomic operations Message-ID: <20220216171602.GA10877@willie-the-truck> References: <20220129220452.194585-1-houtao1@huawei.com> <20220129220452.194585-3-houtao1@huawei.com> <4524da71-3977-07db-bd6e-cebd1c539805@iogearbox.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <4524da71-3977-07db-bd6e-cebd1c539805@iogearbox.net> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220216_091613_980677_F3DB1810 X-CRM114-Status: GOOD ( 22.96 ) 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 T24gRnJpLCBGZWIgMTEsIDIwMjIgYXQgMDM6Mzk6NDhQTSArMDEwMCwgRGFuaWVsIEJvcmttYW5u IHdyb3RlOgo+IE9uIDEvMjkvMjIgMTE6MDQgUE0sIEhvdSBUYW8gd3JvdGU6Cj4gPiBJdCBpcyBh IHByZXBhcmF0aW9uIHBhdGNoIGZvciBlQlBGIGF0b21pYyBzdXBwb3J0cyB1bmRlciBhcm02NC4g ZUJQRgo+ID4gbmVlZHMgc3VwcG9ydCBhdG9taWNbNjRdX2ZldGNoX2FkZCwgYXRvbWljWzY0XV9b ZmV0Y2hfXXthbmQsb3IseG9yfSBhbmQKPiA+IGF0b21pY1s2NF1fe3hjaGd8Y21weGNoZ30uIFRo ZSBvcmRlcmluZyBzZW1hbnRpY3Mgb2YgZUJQRiBhdG9taWNzIGFyZQo+ID4gdGhlIHNhbWUgd2l0 aCB0aGUgaW1wbGVtZW50YXRpb25zIGluIGxpbnV4IGtlcm5lbC4KPiA+IAo+ID4gQWRkIHRocmVl IGhlbHBlcnMgdG8gc3VwcG9ydCBMRENMUi9MREVPUi9MRFNFVC9TV1AsIENBUyBhbmQgRE1CCj4g PiBpbnN0cnVjdGlvbnMuIFNUQUREL1NUQ0xSL1NURU9SL1NUU0VUIGFyZSBzaW1wbHkgZW5jb2Rl ZCBhcyBhbGlhc2VzIGZvcgo+ID4gTERBREQvTERDTFIvTERFT1IvTERTRVQgd2l0aCBYWlIgYXMg dGhlIGRlc3RpbmF0aW9uIHJlZ2lzdGVyLCBzbyBubyBleHRyYQo+ID4gaGVscGVyIGlzIGFkZGVk LiBhdG9taWNfZmV0Y2hfYWRkKCkgYW5kIG90aGVyIGF0b21pYyBvcHMgbmVlZHMgc3VwcG9ydCBm b3IKPiA+IFNUTFhSIGluc3RydWN0aW9uLCBzbyBleHRlbmQgZW51bSBhYXJjaDY0X2luc25fbGRz dF90eXBlIHRvIGRvIHRoYXQuCj4gPiAKPiA+IExEQUREL0xERU9SL0xEU0VUL1NXUCBhbmQgQ0FT IGluc3RydWN0aW9ucyBhcmUgb25seSBhdmFpbGFibGUgd2hlbiBMU0UKPiA+IGF0b21pY3MgaXMg ZW5hYmxlZCwgc28ganVzdCByZXR1cm4gQUFSQ0g2NF9CUkVBS19GQVVMVCBkaXJlY3RseSBpbgo+ ID4gdGhlc2UgbmV3bHktYWRkZWQgaGVscGVycyBpZiBDT05GSUdfQVJNNjRfTFNFX0FUT01JQ1Mg aXMgZGlzYWJsZWQuCj4gPiAKPiA+IFNpZ25lZC1vZmYtYnk6IEhvdSBUYW8gPGhvdXRhbzFAaHVh d2VpLmNvbT4KPiAKPiBIZXkgTWFyayAvIEFyZCAvIFdpbGwgLyBDYXRhbGluIG9yIG90aGVycywg Y291bGQgd2UgZ2V0IGFuIEFjayBvbiBwYXRjaCAxICYgMgo+IGF0IG1pbiBpZiBpdCBsb29rcyBn b29kIHRvIHlvdT8KCkkgY2hlY2tlZCB0aGUgaW5zdHJ1Y3Rpb24gZW5jb2RpbmdzIGluIHBhdGNo ZXMgMSBhbmQgMiBhbmQgdGhleSBhbGwgbG9vawpmaW5lIHRvIG1lLiBIb3dldmVyLCBhZnRlciBh cHBseWluZyB0aG9zZSB0d28gbG9jYWxseSBJIGdldCBhIGJ1aWxkIGZhaWx1cmU6CgogIHwgSW4g ZmlsZSBpbmNsdWRlZCBmcm9tIGFyY2gvYXJtNjQvbmV0L2JwZl9qaXRfY29tcC5jOjIzOgogIHwg YXJjaC9hcm02NC9uZXQvYnBmX2ppdF9jb21wLmM6IEluIGZ1bmN0aW9uIOKAmGJ1aWxkX2luc27i gJk6CiAgfCBhcmNoL2FybTY0L25ldC9icGZfaml0Lmg6OTQ6MjogZXJyb3I6IGltcGxpY2l0IGRl Y2xhcmF0aW9uIG9mIGZ1bmN0aW9uIOKAmGFhcmNoNjRfaW5zbl9nZW5fc3RhZGTigJk7IGRpZCB5 b3UgbWVhbiDigJhhYXJjaDY0X2luc25fZ2VuX2FkcuKAmT8gWy1XZXJyb3I9aW1wbGljaXQtZnVu Y3Rpb24tZGVjbGFyYXRpb25dCiAgfCAgICA5NCB8ICBhYXJjaDY0X2luc25fZ2VuX3N0YWRkKFJu LCBScywgQTY0X1NJWkUoc2YpKQogIHwgICAgICAgfCAgXn5+fn5+fn5+fn5+fn5+fn5+fn5+fgog IHwgYXJjaC9hcm02NC9uZXQvYnBmX2ppdF9jb21wLmM6OTEyOjk6IG5vdGU6IGluIGV4cGFuc2lv biBvZiBtYWNybyDigJhBNjRfU1RBRETigJkKICB8ICAgOTEyIHwgICAgZW1pdChBNjRfU1RBREQo aXNkdywgcmVnLCBzcmMpLCBjdHgpOwogIHwgICAgICAgfCAgICAgICAgIF5+fn5+fn5+fgogIHwg Y2MxOiBzb21lIHdhcm5pbmdzIGJlaW5nIHRyZWF0ZWQgYXMgZXJyb3JzCgpXaWxsCgpfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVs IG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDov L2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==