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 C69E0CD6E55 for ; Mon, 1 Jun 2026 14:33:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=mi2AxBnDBuiwVVwwXIXlKf9rcXdvhFLnG5wAFAlVNdc=; b=S4cvIgMUrwC2RZvP1WpnuAB30c wt6XnKZ9iKnljUyMRRTZG0u4MoTy8KLdzSrBup+HXhOp8SK1VOzTSUbP/R0/advIUOuDVOmujhzEa Ye8X+1Y/JXMNPmzGuEgL9VdzzHZMurhcKjvylP7W3127KKhtWqk75DntGqX6cIbXhS+mXGWlH7xVW e7xgCRUmyLjmES3ghT2MhGlwXFmQ+qWl7yU9151r6/eCnYcNaO+yw+RED/Ho7st3NIMPd0uvyDACv C1fd0Amsqm4hgPkseT1tYlwM/R5yKcTssQtk+0WtqOOGX28kKDZZaJWJlOAR2tfqShtNbfT+wrX7s ksk2stnQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wU3hJ-0000000BI9N-1ONs; Mon, 01 Jun 2026 14:32:57 +0000 Received: from mail-qk1-x72b.google.com ([2607:f8b0:4864:20::72b]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wU3hG-0000000BI8o-08At for linux-arm-kernel@lists.infradead.org; Mon, 01 Jun 2026 14:32:55 +0000 Received: by mail-qk1-x72b.google.com with SMTP id af79cd13be357-914bb8e95c2so574383485a.1 for ; Mon, 01 Jun 2026 07:32:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ziepe.ca; s=google; t=1780324373; x=1780929173; darn=lists.infradead.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=mi2AxBnDBuiwVVwwXIXlKf9rcXdvhFLnG5wAFAlVNdc=; b=FZzxta0Kt2OP68LRqGg0oToU/dELlZuh1Xb5SflLNLVPcO8uMo6/l6hhAhexfWT8Ob 3W0DHwgnt3qF8Na9rDUGJ2tKNWkbT0dZRJOD3CYwRVb56FYhy9dUCmbNh0IZewyP50FC v9/EIdFHokGII6nX3XDznhOxOEuBAjt/ne1fi0Bbir3kFIVZfGuVaJDCaD47VJueFJLE cxtusf+vX7lkcYXtgDRLsKiXCNmjrztE0lSdF2b7sV8anUT3/v+gRoGW9xzHzfnQR72k yxEHRCsIpcXIHpfQAge0ipcvFRHV6OBnQgsFwFlbPGrk79nkbsINgFoS1Xi7RVo2jgOT bEgQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780324373; x=1780929173; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=mi2AxBnDBuiwVVwwXIXlKf9rcXdvhFLnG5wAFAlVNdc=; b=Q84Ko4yhohdDD1RIpErtAx3/6SzKgVxnwRn/lEWDbRjlczNwlte9zQ833hMVX3zNV/ KuJPcEis3o1Mn3DCyVzBHB+aZiMvmK+1oaCbL9eIHkXDuS99bRNeRo+5hS6fltJNmBFf u/Fje4IS+Y9dA1kcAfMSjcIUw5m8h8I1VhlQ3S8+QRO7tFB2XLt6O4v7iZH1Vy3T/FUw 603FnLdLtOfJ653pqC7p84LDHY7kHEjrEXONqAgsHheqRLJP86rtNAKIR1OqlZJkBHzq o7i8/uS8oXnrdhkfo68i9a69WzOD70euUQH8zwheL9qKOMTSZBTrvFm3JA3mAZo61jxH HCaQ== X-Forwarded-Encrypted: i=1; AFNElJ9dp0YSrx2enkIpGderLF0Oz1emaodD7QTLKmA4rgfN5+maGvuR9+2/g3lIdptfCFMke1gmd+6jZOEEqi3wAj9X@lists.infradead.org X-Gm-Message-State: AOJu0YwAC+DhXwy5ltGL5mJT/mw2bPnem+vl93cVuZnwf62xMFSJ7p8U 44MDOe9aCayqNQ+65ZUYP4my9gtLz31hd6Whojdq1Zg4BqKphNH6JlWQzQsUgXKr/e4= X-Gm-Gg: Acq92OH1gfMZAb7EVdMkoeI9Y9xcs6aOymAucXP8H6MtByuf0Wk6TxzBNeXNAZ9Zdo7 mir2f1SiZRl+QZCszDXkG+3xoalpUyCs0Hyk69gYdEVCGShRQcQf51MT1ntrxPC1EjK4F12P5pJ jc4N6T0VmIh1aD6oHf8VzYvF3YUbtppFbMWsvPwxA2hLroSeF0DQN8G+Is/pLU+Ow7b1iPxdnYn bM7zlfu/iqfvTTxGkYO0k1I8HhXsU4794RMHsQh/01epe/nfyWJxY5sFKtwwXJDKPOJWL93bIhw xlJH6fhiiXCpa3CgLE5I1Gir7m0LgyjV3js2t3i0Lmp2Zrldjp6O2S5Ts2BQue4uUY+rRT3gVyt yFIYltso9spUB+At+i8EIhFzABXhwm+R5bfGad5ra0op6kVnaNXqq0U7wCVrh5WATSlB6Qclfrq VNgggPhG3xXfYlAqMzKoQPHdFiGnLFwNXf51B337tEsPEQci9vdzCg6MeBP6TA3YtHAoZwMKTtz oVLKgV8c6GRgbjg X-Received: by 2002:a05:620a:701b:b0:915:4213:eb98 with SMTP id af79cd13be357-91542140a21mr1632452385a.56.1780324372641; Mon, 01 Jun 2026 07:32:52 -0700 (PDT) Received: from ziepe.ca (crbknf0213w-47-54-130-67.pppoe-dynamic.high-speed.nl.bellaliant.net. [47.54.130.67]) by smtp.gmail.com with ESMTPSA id af79cd13be357-91570271853sm113463685a.24.2026.06.01.07.32.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Jun 2026 07:32:51 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1wU3hC-00000001n2t-2ubv; Mon, 01 Jun 2026 11:32:50 -0300 Date: Mon, 1 Jun 2026 11:32:50 -0300 From: Jason Gunthorpe To: "guanghuifeng@linux.alibaba.com" 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 Subject: Re: [PATCH 3/9] iommu/generic_pt: implement iova_to_phys_length Message-ID: <20260601143250.GA2487554@ziepe.ca> References: <20260529115116.GR2487554@ziepe.ca> <20260531093637.3893199-1-guanghuifeng@linux.alibaba.com> <20260531093637.3893199-4-guanghuifeng@linux.alibaba.com> <20260531235421.GW2487554@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260601_073254_169930_FF241509 X-CRM114-Status: UNSURE ( 9.33 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jun 01, 2026 at 10:24:14PM +0800, guanghuifeng@linux.alibaba.com wrote: > Therefore, currently only the PTE mapping size of the iova is returned. > The current commit has a large number of changes; this issue will be > fixed in a subsequent series patch. No, do not introduce the wrong API to start. The iommupt version should be easy enough to do this. Jason