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[47.54.130.67]) by smtp.gmail.com with ESMTPSA id 6a1803df08f44-8ccea064f97sm94142866d6.13.2026.06.01.07.31.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Jun 2026 07:31:44 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1wU3g7-00000001mzs-39uT; Mon, 01 Jun 2026 11:31:43 -0300 Date: Mon, 1 Jun 2026 11:31:43 -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 1/9] iommu: introduce iova_to_phys_length in iommu_domain_ops Message-ID: <20260601143143.GZ2487554@ziepe.ca> References: <20260529115116.GR2487554@ziepe.ca> <20260531093637.3893199-1-guanghuifeng@linux.alibaba.com> <20260531093637.3893199-2-guanghuifeng@linux.alibaba.com> <20260531235148.GV2487554@ziepe.ca> <20260601134322.GY2487554@ziepe.ca> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline Content-Transfer-Encoding: base64 In-Reply-To: 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" T24gTW9uLCBKdW4gMDEsIDIwMjYgYXQgMTA6MTQ6MjdQTSArMDgwMCwgZ3VhbmdodWlmZW5nQGxp bnV4LmFsaWJhYmEuY29tIHdyb3RlOgo+IAo+IOWcqCAyMDI2LzYvMSAyMTo0MywgSmFzb24gR3Vu dGhvcnBlIOWGmemBkzoKPiA+IE9uIE1vbiwgSnVuIDAxLCAyMDI2IGF0IDA0OjQxOjQ4UE0gKzA4 MDAsIGd1YW5naHVpZmVuZ0BsaW51eC5hbGliYWJhLmNvbSB3cm90ZToKPiA+ID4gPiA+ICsvKioK PiA+ID4gPiA+ICsgKiBpb21tdV9pb3ZhX3RvX3BoeXNfbGVuZ3RoIC0gVHJhbnNsYXRlIElPVkEg YW5kIHJldHVybiBtYXBwaW5nIHBhZ2Ugc2l6ZQo+ID4gPiA+ID4gKyAqIEBkb21haW46IElPTU1V IGRvbWFpbiB0byBxdWVyeQo+ID4gPiA+ID4gKyAqIEBpb3ZhOiBJTyB2aXJ0dWFsIGFkZHJlc3Mg dG8gdHJhbnNsYXRlCj4gPiA+ID4gPiArICogQG1hcHBlZF9sZW5ndGg6IE91dHB1dCBwYXJhbWV0 ZXIgZm9yIHRoZSBQVEUgcGFnZSBzaXplIChlLmcuIDRLQi8yTUIvMUdCKQo+ID4gPiA+ID4gKyAq Cj4gPiA+ID4gPiArICogTGlrZSBpb21tdV9pb3ZhX3RvX3BoeXMoKSBidXQgYWRkaXRpb25hbGx5 IHJldHVybnMgdGhlIHBhZ2Ugc2l6ZSBvZiB0aGUKPiA+ID4gPiA+ICsgKiBQVEUgbWFwcGluZyBh dCBAaW92YSB0aHJvdWdoIEBtYXBwZWRfbGVuZ3RoLgo+ID4gPiA+ID4gKyAqCj4gPiA+ID4gPiAr ICogUmV0dXJuOiBUaGUgcGh5c2ljYWwgYWRkcmVzcyBmb3IgdGhlIGdpdmVuIElPVkEsIG9yIDAg aWYgbm8gdHJhbnNsYXRpb24uCj4gPiA+ID4gPiArICovCj4gPiA+ID4gV2hlbiBpbnRyb2R1Y2lu ZyB0aGUgbmV3IGZ1bmN0aW9uIEkgd291bGQgbGlrZSB0byBmaXggdGhpcyAwIGVycm9yIGFzCj4g PiA+ID4gd2VsbCwgaXQgc2hvdWxkIHJldHVybiBQSFlTX01BWCBmb3IgZXJyb3IKPiA+ID4gSW1w bGVtZW50YXRpb25zIHN1Y2ggYXMgYXJtX3NtbXVfaW92YV90b19waHlzL0RPTUFJTl9OUyhpb3Zh X3RvX3BoeXMpCj4gPiA+IGFsbCB1c2UgYSByZXR1cm4gdmFsdWUgb2YgMCBhcyBhbiBpbnZhbGlk IHN0YXRlLCBzbyAwIGlzIHVzZWQgYXMgdGhlCj4gPiA+IHJlcHJlc2VudGF0aW9uIG9mIGFuIGlu dmFsaWQgc3RhdGUgdG8gbWFpbnRhaW4gY29tcGF0aWJpbGl0eS4KPiA+IEkga25vdywgYnV0IHRo aXMgYmFkIGNob2ljZSBoYXMgYWxyZWFkeSBjYXVzZWQgYnVncyBzbyBpZiB3ZSBhcmUKPiA+IGNo YW5naW5nIGV2ZXJ5dGhpbmcgSSB3b3VsZCBwcmVmZXIgd2UgZml4IGl0Lgo+IAo+IE9LLCB0aGVy ZSBhcmUgYSBsb3Qgb2YgY2hhbmdlcyBpbiB0aGUgY3VycmVudCBjb21taXQuIFRoaXMgaXNzdWUg d2lsbCBiZQo+IGZpeGVkIGluIGEgc3Vic2VxdWVudCBzZXJpZXMgcGF0Y2guCgpJZiB5b3UgZm9s bG93IHRoZSBwbGFuIEkgZ2F2ZSB5b3UgdGhlbiBpbnRyb2R1Y2UgdGhlIG5ldyBmdW5jdGlvbgp1 c2luZyB0aGUgbmV3IHJldHVybiBjb2RlIGFuZCBvbmx5IHN1cHBvcnQgaXQgaW4gaW9tbXVwdCwg dGhlbiB5b3UgY2FuCmNvbnZlcnQgdGhlIG90aGVyIGRyaXZlcnMgdG8gdGhlIG5ldyBmdW5jdGlv biBvbmUgYnkgb25lIGluY2x1ZGluZyB0aGUKcmV0dXJuIGNvZGUuCgpKYXNvbgo=