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 D5633C433F5 for ; Tue, 31 May 2022 17:10:41 +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-Type: Content-Transfer-Encoding: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=VzC8CDTFzvcenzAxtbD0Q99Z5V0p9UJggNEkRj27KV8=; b=iC8eacMNN+0/HPsodStKYY3kXx kSpCECPKBZy7edRp+uM283RAtPmkLJ1UVc7/kkDZDDumwT/yRsC1t/Jw+ZAtQeV1C705IqOPKHXAg 6SP3t0JURc0lvV8WGwciG52g+A1OzaCIuGHSIu/gGaDQbaQQ9LeqJMbrVJur1kh38VqO68x/J5Y5U DoehJheKYjpl5nGJuoPlF2WT5kDfjdL3ANSef1fOprpVHua5rvFZWJlMnQ+CoxRTqKE9IsrLJG4Y+ Hqt4cAcf/8C/f9VqxAlLq7PRNr3ts1MiL1qaNWuAzO0l58AA68f6sj4qg+6oamyy0xXx+7Fx828gg 0Nt+JPRg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nw5N3-00BycA-Bs; Tue, 31 May 2022 17:09:29 +0000 Received: from mail-lf1-x130.google.com ([2a00:1450:4864:20::130]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nw5Mz-00ByaG-IV for linux-arm-kernel@lists.infradead.org; Tue, 31 May 2022 17:09:27 +0000 Received: by mail-lf1-x130.google.com with SMTP id i10so3111481lfj.0 for ; Tue, 31 May 2022 10:09:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-transfer-encoding:content-language; bh=oXC+omMyhQE+yQOLbS6KJe5K78bZY03LjtAozxlOWS4=; b=TAyjZkyHiTXmbmHCSrE2qWJwfpy2mK18RqayHB9KPwF3D5Pg+bZ6eGYNeN34jbspjz XKAIAKaqLBFgTkjxxqEqqjzKoQ4toUSB64OhXxsfMMRXeKBxTuUTXvyIQGUiGfioo7kC oMkYvmT4C0UXva0czCxfN3JpmbeZVhWBsYi1qGOpj0WhxatmjVmbr0Qp0zNQmGicVbqD XOkcjG3W1KKt5f0akOma0UDAHja0EIq/KJOrVyQ2kluOg8ugvRzH57Wsp2EqTBQKNt5m 4tqMtwtv+jysyfjiBaAa2EYLry0bXPvGexMdU0w2FewQWJm/hZYWq2QWm7FRLYNLGMi4 npkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-transfer-encoding :content-language; bh=oXC+omMyhQE+yQOLbS6KJe5K78bZY03LjtAozxlOWS4=; b=YqyndNTm1/rfF7MZls9betBGhtxArN7cu8v6LjA73extdoVVbaPaMYlrnZD1tAy4aL ZO2Zmw1l3AcgOC90w/TqDX4T1GzsA8XlwjKCpo1maEXjSxEweWJ6DAdYE16fMSZLz4ZR 0ShzZdTheiNuDCtLiKZHYSbLkuMsFDnKZL0jzVY1XTTb0RO0jOoYfc4yxTomw4Pka2Nd PXd3iTE2uVcE6CcLRmYwr5YD7iNc1bjGw97UG++MCAmFkdiXX4mSzSFrGARJ7YhFwICI COk0r8zfJvS9vMZsESmd08Yk/YRPXoKThlOUD440qxDvQoubFyPza8SYSq3LoLYeW7sr WpYQ== X-Gm-Message-State: AOAM532tlvng7UPa0610hqR0I62Fr2Jv1OMG8VLQrwFT/ybmoaiQXqM1 R7VO8eJLbvC6xYRC1Ax40lw= X-Google-Smtp-Source: ABdhPJwx9hqwCt9lTBlhLuxF3159ZiuKQMGeaQRRGSerHfQCM1lHwBJOFfe0u0PJDGwPNceRQMYbag== X-Received: by 2002:ac2:4f09:0:b0:478:6c80:64fc with SMTP id k9-20020ac24f09000000b004786c8064fcmr26696653lfr.34.1654016961692; Tue, 31 May 2022 10:09:21 -0700 (PDT) Received: from [192.168.1.7] ([212.22.223.21]) by smtp.gmail.com with ESMTPSA id i6-20020a196d06000000b00477cab33759sm3072432lfc.256.2022.05.31.10.09.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 31 May 2022 10:09:21 -0700 (PDT) Subject: Re: [PATCH V3 5/8] dt-bindings: Add xen,grant-dma IOMMU description for xen-grant DMA ops To: Krzysztof Kozlowski , xen-devel@lists.xenproject.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org Cc: Oleksandr Tyshchenko , Rob Herring , Joerg Roedel , Will Deacon , Krzysztof Kozlowski , Julien Grall , Juergen Gross , Stefano Stabellini , "Michael S. Tsirkin" , Christoph Hellwig , Arnd Bergmann References: <1653944417-17168-1-git-send-email-olekstysh@gmail.com> <1653944417-17168-6-git-send-email-olekstysh@gmail.com> <15eef004-74c7-0eb5-3f87-86e164ef70ff@linaro.org> From: Oleksandr Message-ID: Date: Tue, 31 May 2022 20:09:19 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <15eef004-74c7-0eb5-3f87-86e164ef70ff@linaro.org> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220531_100925_637289_0798DC29 X-CRM114-Status: GOOD ( 24.03 ) 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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Ck9uIDMxLjA1LjIyIDE0OjUyLCBLcnp5c3p0b2YgS296bG93c2tpIHdyb3RlOgoKSGVsbG8gS3J6 eXN6dG9mCgo+IE9uIDMwLzA1LzIwMjIgMjM6MDAsIE9sZWtzYW5kciBUeXNoY2hlbmtvIHdyb3Rl Ogo+PiBGcm9tOiBPbGVrc2FuZHIgVHlzaGNoZW5rbyA8b2xla3NhbmRyX3R5c2hjaGVua29AZXBh bS5jb20+Cj4gVGhhbmsgeW91IGZvciB5b3VyIHBhdGNoLiBUaGVyZSBpcyBzb21ldGhpbmcgdG8g ZGlzY3Vzcy9pbXByb3ZlLgo+Cj4+IGRpZmYgLS1naXQgYS9Eb2N1bWVudGF0aW9uL2RldmljZXRy ZWUvYmluZGluZ3MvaW9tbXUveGVuLGdyYW50LWRtYS55YW1sIGIvRG9jdW1lbnRhdGlvbi9kZXZp Y2V0cmVlL2JpbmRpbmdzL2lvbW11L3hlbixncmFudC1kbWEueWFtbAo+PiBuZXcgZmlsZSBtb2Rl IDEwMDY0NAo+PiBpbmRleCAwMDAwMDAwMC4uYWI1NzY1Ywo+PiAtLS0gL2Rldi9udWxsCj4+ICsr KyBiL0RvY3VtZW50YXRpb24vZGV2aWNldHJlZS9iaW5kaW5ncy9pb21tdS94ZW4sZ3JhbnQtZG1h LnlhbWwKPj4gQEAgLTAsMCArMSw0OSBAQAo+PiArIyBTUERYLUxpY2Vuc2UtSWRlbnRpZmllcjog KEdQTC0yLjAtb25seSBvciBCU0QtMi1DbGF1c2UpCj4+ICslWUFNTCAxLjIKPj4gKy0tLQo+PiAr JGlkOiBodHRwOi8vZGV2aWNldHJlZS5vcmcvc2NoZW1hcy9pb21tdS94ZW4sZ3JhbnQtZG1hLnlh bWwjCj4+ICskc2NoZW1hOiBodHRwOi8vZGV2aWNldHJlZS5vcmcvbWV0YS1zY2hlbWFzL2NvcmUu eWFtbCMKPj4gKwo+PiArdGl0bGU6IFhlbiBzcGVjaWZpYyBJT01NVSBmb3IgdmlydHVhbGl6ZWQg ZGV2aWNlcyAoZS5nLiB2aXJ0aW8pCj4+ICsKPj4gK21haW50YWluZXJzOgo+PiArICAtIFN0ZWZh bm8gU3RhYmVsbGluaSA8c3N0YWJlbGxpbmlAa2VybmVsLm9yZz4KPj4gKwo+PiArZGVzY3JpcHRp b246Cj4+ICsgIFRoZSByZWZlcmVuY2UgdG8gWGVuIHNwZWNpZmljIElPTU1VIG5vZGUgdXNpbmcg ImlvbW11cyIgcHJvcGVydHkgaW5kaWNhdGVzCj4+ICsgIHRoYXQgWGVuIGdyYW50IG1hcHBpbmdz IG5lZWQgdG8gYmUgZW5hYmxlZCBmb3IgdGhlIGRldmljZSwgYW5kIGl0IHNwZWNpZmllcwo+PiAr ICB0aGUgSUQgb2YgdGhlIGRvbWFpbiB3aGVyZSB0aGUgY29ycmVzcG9uZGluZyBiYWNrZW5kIHJl c2lkZXMuCj4+ICsgIFRoZSBiaW5kaW5nIGlzIHJlcXVpcmVkIHRvIHJlc3RyaWN0IG1lbW9yeSBh Y2Nlc3MgdXNpbmcgWGVuIGdyYW50IG1hcHBpbmdzLgo+PiArCj4+ICtwcm9wZXJ0aWVzOgo+PiAr ICBjb21wYXRpYmxlOgo+PiArICAgIGNvbnN0OiB4ZW4sZ3JhbnQtZG1hCj4+ICsKPj4gKyAgJyNp b21tdS1jZWxscyc6Cj4+ICsgICAgY29uc3Q6IDEKPj4gKyAgICBkZXNjcmlwdGlvbjoKPj4gKyAg ICAgIFhlbiBzcGVjaWZpYyBJT01NVSBpcyBtdWx0aXBsZS1tYXN0ZXIgSU9NTVUgZGV2aWNlLgo+ PiArICAgICAgVGhlIHNpbmdsZSBjZWxsIGRlc2NyaWJlcyB0aGUgZG9taWQgKGRvbWFpbiBJRCkg b2YgdGhlIGRvbWFpbiB3aGVyZQo+PiArICAgICAgdGhlIGJhY2tlbmQgaXMgcnVubmluZy4KPj4g Kwo+PiArcmVxdWlyZWQ6Cj4+ICsgIC0gY29tcGF0aWJsZQo+PiArICAtICIjaW9tbXUtY2VsbHMi Cj4+ICsKPj4gK2FkZGl0aW9uYWxQcm9wZXJ0aWVzOiBmYWxzZQo+PiArCj4+ICtleGFtcGxlczoK Pj4gKyAgLSB8Cj4+ICsgICAgeGVuX2lvbW11IHsKPiBObyB1bmRlcnNjb3JlcyBpbiBub2RlIG5h bWVzLCBnZW5lcmljIG5vZGUgbmFtZXMsIHNvIHRoaXMgbG9va3MgbGlrZQo+ICJpb21tdSIuCgoK b2ssIHdpbGwgY2hhbmdlCgoKPgo+PiArICAgICAgICBjb21wYXRpYmxlID0gInhlbixncmFudC1k bWEiOwo+PiArICAgICAgICAjaW9tbXUtY2VsbHMgPSA8MT47Cj4+ICsgICAgfTsKPj4gKwo+PiAr ICAgIHZpcnRpb0AzMDAwIHsKPj4gKyAgICAgICAgY29tcGF0aWJsZSA9ICJ2aXJ0aW8sbW1pbyI7 Cj4+ICsgICAgICAgIHJlZyA9IDwweDMwMDAgMHgxMDA+Owo+PiArICAgICAgICBpbnRlcnJ1cHRz ID0gPDQxPjsKPj4gKwo+PiArICAgICAgICAvKiBUaGUgYmFja2VuZCBpcyBsb2NhdGVkIGluIFhl biBkb21haW4gd2l0aCBJRCAxICovCj4+ICsgICAgICAgIGlvbW11cyA9IDwmeGVuX2lvbW11IDE+ Owo+IFRoZXJlIGlzIG5vIG5lZWQgdXN1YWxseSB0byBnaXZlIGNvbnN1bWVyIGV4YW1wbGVzIGlu IHByb3ZpZGVyIGJpbmRpbmcuCj4gSWYgdGhlcmUgaXMgbm90aGluZyBzcGVjaWZpYyBoZXJlIChs b29rcyBleGFjdGx5IGxpa2UgZXZlcnkgSU9NTVUKPiBjb25zdW1lciBpbiBMaW51eCBrZXJuZWwp LCBkcm9wIHRoZSBjb25zdW1lci4KCgpJIGdvdCBpdC7CoCBUaGVyZSBpcyBub3RoaW5nIHNwZWNp ZmljIGZyb20gdGhlIGRldmljZSB0cmVlJ3MgcGVyc3BlY3RpdmUsIApJIHdhcyB0aGlua2luZyB0 byBkcmF3IGF0dGVudGlvbiB0byB0aGUgSU9NTVUgc3BlY2lmaWVyIChpbiBvdXIgY2FzZSwgCnRo ZSBtYXN0ZXIgZGV2aWNlJ3MgSUQgPT0gYmFja2VuZCdzIGRvbWFpbiBJRCkuIEJ1dMKgICcjaW9t bXUtY2VsbHMnIApkZXNjcmlwdGlvbiBhYm92ZSBhbHJlYWR5IGNsYXJpZmllcyB0aGF0LiBXaWxs IGRyb3AuCgoKPgo+PiArICAgIH07Cj4KPiBCZXN0IHJlZ2FyZHMsCj4gS3J6eXN6dG9mCgotLSAK UmVnYXJkcywKCk9sZWtzYW5kciBUeXNoY2hlbmtvCgoKX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGlu dXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQu b3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=