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[47.54.130.67]) by smtp.gmail.com with ESMTPSA id af79cd13be357-91532445a83sm1272224185a.10.2026.06.02.05.32.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 02 Jun 2026 05:32:29 -0700 (PDT) Received: from jgg by wakko with local (Exim 4.97) (envelope-from ) id 1wUOIG-00000003lvt-3BeT; Tue, 02 Jun 2026 09:32:28 -0300 Date: Tue, 2 Jun 2026 09:32:28 -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: <20260602123228.GF2487554@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> <605cbc0f-dcfb-4edd-8756-1c376c9bb6ef@linux.alibaba.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline Content-Transfer-Encoding: base64 In-Reply-To: <605cbc0f-dcfb-4edd-8756-1c376c9bb6ef@linux.alibaba.com> 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" T24gVHVlLCBKdW4gMDIsIDIwMjYgYXQgMDM6MjA6MDVQTSArMDgwMCwgZ3VhbmdodWlmZW5nQGxp bnV4LmFsaWJhYmEuY29tIHdyb3RlOgo+IAo+IOWcqCAyMDI2LzYvMSA3OjU0LCBKYXNvbiBHdW50 aG9ycGUg5YaZ6YGTOgo+ID4gT24gU3VuLCBNYXkgMzEsIDIwMjYgYXQgMDU6MzY6MzFQTSArMDgw MCwgR3VhbmdodWkgRmVuZyB3cm90ZToKPiA+ID4gQEAgLTE1OSw0NSArMTY0LDUxIEBAIHN0YXRp YyBfX2Fsd2F5c19pbmxpbmUgaW50IF9fZG9faW92YV90b19waHlzKHN0cnVjdCBwdF9yYW5nZSAq cmFuZ2UsIHZvaWQgKmFyZywKPiA+ID4gICAJY2FzZSBQVF9FTlRSWV9UQUJMRToKPiA+ID4gICAJ CXJldHVybiBwdF9kZXNjZW5kKCZwdHMsIGFyZywgZGVzY2VuZF9mbik7Cj4gPiA+ICAgCWNhc2Ug UFRfRU5UUllfT0E6Cj4gPiA+IC0JCSpyZXMgPSBwdF9lbnRyeV9vYV9leGFjdCgmcHRzKTsKPiA+ ID4gKwkJZGF0YS0+cGh5cyA9IHB0X2VudHJ5X29hX2V4YWN0KCZwdHMpOwo+ID4gPiArCQlkYXRh LT5sZW5ndGggPSBCSVQocHRfZW50cnlfb2FfbGcyc3ooJnB0cykpOwo+ID4gQklUIGlzIHRoZSB3 cm9uZyBmdW5jdGlvbiwgaXQgdXNlcyB0aGUgd3JvbmcgdHlwZS4gbG9nMl90b19pbnQoKSBpcwo+ ID4gdHlwZSdkIHByb3Blcmx5Cj4gPiAKPiA+IFRoaXMgYWxzbyBuZWVkcyB0byBrZWVwIHdhbGtp bmcgYW5kIGFjY3VtdWxhdGluZyBsZW5ndGggZm9yCj4gPiBjb25zZWN1dGl2ZSBQVEVzIHVudGls IGl0IHJlYWNoZXMgYSBub24tY29udGlndWl0eS4KPiA+IAo+ID4gVGhlIG90aGVyIGRyaXZlcnMg ZG9uJ3QgbmVlZCB0byBoYXZlIHRoYXQgY29tcGxleGl0eS4KPiA+IAo+ID4gSmFzb24KPiAKPiBw dF9lbnRyeV9vYV9sZzJzeiBoYXMgYWxyZWFkeSBjb25zaWRlcmVkIGNvbnRpbnVvdXMgUFRFcy4K PiAKPiBEb2VzIHRoaXMgbWVhbiB0aGF0IG11bHRpcGxlIFBURXMgbmVlZCB0byBiZSB0cmF2ZXJz ZWQgYWRkaXRpb25hbGx5IGZvcgo+IGNvbnNlY3V0aXZlIFBBIGFkZHJlc3MgbWFwcGluZ3M/Cgp5 ZXMKCkphc29uCg==