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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 4BB32CD6E56 for ; Mon, 1 Jun 2026 09:23:46 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 947DD11306A; Mon, 1 Jun 2026 09:23:45 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="rWGws0rT"; dkim-atps=neutral Received: from out30-131.freemail.mail.aliyun.com (out30-131.freemail.mail.aliyun.com [115.124.30.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5DE9B11306A for ; Mon, 1 Jun 2026 09:23:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1780305821; h=Message-ID:Date:MIME-Version:Subject:To:From:Content-Type; bh=ep5nKo6DRclkdaB0Yg7vYnUiOGxV48mwn6/e9YS/4RY=; b=rWGws0rTyXK4FtsX90kzbGqooV63l8stf01h2B5IOl4faHEUaFXlO7FCMHjtDVxhxqMrAG08CYhmTIpDd5W70/BYzkBHfHvzQK99tbL299Efa8VqMhbQzwqtxcmfqXuo6kouRTVSYLcO81u4XQuv/4mKaatZunbNP15w4o1LaUI= X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R341e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=maildocker-contentspam011083073210; MF=guanghuifeng@linux.alibaba.com; NM=1; PH=DS; RN=28; SR=0; TI=SMTPD_---0X3zS2An_1780305818; Received: from 30.221.133.117(mailfrom:guanghuifeng@linux.alibaba.com fp:SMTPD_---0X3zS2An_1780305818 cluster:ay36) by smtp.aliyun-inc.com; Mon, 01 Jun 2026 17:23:39 +0800 Message-ID: <87bd39ee-6fd6-451e-9ae6-ca2faad84ce9@linux.alibaba.com> Date: Mon, 1 Jun 2026 17:23:38 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 3/9] iommu/generic_pt: implement iova_to_phys_length To: Jason Gunthorpe Cc: boris.brezillon@collabora.com, robh@kernel.org, steven.price@arm.com, adrian.larumbe@collabora.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, liviu.dudau@arm.com, joro@8bytes.org, will@kernel.org, robin.murphy@arm.com, alex@shazbot.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, iommu@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kevin.tian@intel.com, baolu.lu@linux.intel.com, suravee.suthikulpanit@amd.com, dwmw2@infradead.org, xlpang@linux.alibaba.com, oliver.yang@linux.alibaba.com, shiyu.zsq@linux.alibaba.com, wei.guo.simon@linux.alibaba.com, alikernel-developer References: <20260529115116.GR2487554@ziepe.ca> <20260531093637.3893199-1-guanghuifeng@linux.alibaba.com> <20260531093637.3893199-4-guanghuifeng@linux.alibaba.com> <20260531235421.GW2487554@ziepe.ca> From: "guanghuifeng@linux.alibaba.com" In-Reply-To: <20260531235421.GW2487554@ziepe.ca> Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: base64 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" CuWcqCAyMDI2LzYvMSA3OjU0LCBKYXNvbiBHdW50aG9ycGUg5YaZ6YGTOgo+IE9uIFN1biwgTWF5 IDMxLCAyMDI2IGF0IDA1OjM2OjMxUE0gKzA4MDAsIEd1YW5naHVpIEZlbmcgd3JvdGU6Cj4+IEBA IC0xNTksNDUgKzE2NCw1MSBAQCBzdGF0aWMgX19hbHdheXNfaW5saW5lIGludCBfX2RvX2lvdmFf dG9fcGh5cyhzdHJ1Y3QgcHRfcmFuZ2UgKnJhbmdlLCB2b2lkICphcmcsCj4+ICAgCWNhc2UgUFRf RU5UUllfVEFCTEU6Cj4+ICAgCQlyZXR1cm4gcHRfZGVzY2VuZCgmcHRzLCBhcmcsIGRlc2NlbmRf Zm4pOwo+PiAgIAljYXNlIFBUX0VOVFJZX09BOgo+PiAtCQkqcmVzID0gcHRfZW50cnlfb2FfZXhh Y3QoJnB0cyk7Cj4+ICsJCWRhdGEtPnBoeXMgPSBwdF9lbnRyeV9vYV9leGFjdCgmcHRzKTsKPj4g KwkJZGF0YS0+bGVuZ3RoID0gQklUKHB0X2VudHJ5X29hX2xnMnN6KCZwdHMpKTsKPiBCSVQgaXMg dGhlIHdyb25nIGZ1bmN0aW9uLCBpdCB1c2VzIHRoZSB3cm9uZyB0eXBlLiBsb2cyX3RvX2ludCgp IGlzCj4gdHlwZSdkIHByb3Blcmx5CgpZZXMsIGxvZzJfdG9faW50IHNob3VsZCBiZSB1c2VkLgoK PiBUaGlzIGFsc28gbmVlZHMgdG8ga2VlcCB3YWxraW5nIGFuZCBhY2N1bXVsYXRpbmcgbGVuZ3Ro IGZvcgo+IGNvbnNlY3V0aXZlIFBURXMgdW50aWwgaXQgcmVhY2hlcyBhIG5vbi1jb250aWd1aXR5 Lgo+Cj4gVGhlIG90aGVyIGRyaXZlcnMgZG9uJ3QgbmVlZCB0byBoYXZlIHRoYXQgY29tcGxleGl0 eS4KClllcwoKPiBKYXNvbgo=