From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Zhang, Jerry (Junwei)" Subject: Re: [PATCH 1/2] drm/amdgpu: return bo itself if userptr is cpu addr of bo (v3) Date: Thu, 2 Aug 2018 14:20:16 +0800 Message-ID: <5B62A2A0.5060508@amd.com> References: <1532944950-28619-1-git-send-email-Jerry.Zhang@amd.com> <3d423f44-e47a-e70c-dfd9-80c1ff843e45@gmail.com> <5B6008A1.5050401@amd.com> <5B601844.3010405@amd.com> <5e8f2a76-6cbd-1f80-ec94-fcd79c0fa55c@gmail.com> <5B60249D.7030503@amd.com> <9dc68d5d-561c-242a-b3ba-1c8078ab670f@gmail.com> <5B6031CA.4050102@amd.com> <3ffb8b8c-fae3-92d9-80e1-bd7d0498b4c7@gmail.com> <53eb686a-0747-394a-b0c3-4cd53ab836e2@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: =?UTF-8?B?TWFyZWsgT2zFocOhaw==?= , =?UTF-8?B?Q2hyaXM=?= =?UTF-8?B?dGlhbiBLw7ZuaWc=?= Cc: Chunming Zhou , amd-gfx mailing list T24gMDgvMDIvMjAxOCAwODowMCBBTSwgTWFyZWsgT2zFocOhayB3cm90ZToKPiBPbiBXZWQsIEF1 ZyAxLCAyMDE4IGF0IDI6MjkgUE0sIENocmlzdGlhbiBLw7ZuaWcKPiA8Y2hyaXN0aWFuLmtvZW5p Z0BhbWQuY29tPiB3cm90ZToKPj4gQW0gMDEuMDguMjAxOCB1bSAxOTo1OSBzY2hyaWViIE1hcmVr IE9sxaHDoWs6Cj4+Pgo+Pj4gT24gV2VkLCBBdWcgMSwgMjAxOCBhdCAxOjUyIFBNLCBDaHJpc3Rp YW4gS8O2bmlnCj4+PiA8Y2hyaXN0aWFuLmtvZW5pZ0BhbWQuY29tPiB3cm90ZToKPj4+Pgo+Pj4+ IEFtIDAxLjA4LjIwMTggdW0gMTk6Mzkgc2NocmllYiBNYXJlayBPbMWhw6FrOgo+Pj4+Pgo+Pj4+ PiBPbiBXZWQsIEF1ZyAxLCAyMDE4IGF0IDI6MzIgQU0sIENocmlzdGlhbiBLw7ZuaWcKPj4+Pj4g PGNocmlzdGlhbi5rb2VuaWdAYW1kLmNvbT4gd3JvdGU6Cj4+Pj4+Pgo+Pj4+Pj4gQW0gMDEuMDgu MjAxOCB1bSAwMDowNyBzY2hyaWViIE1hcmVrIE9sxaHDoWs6Cj4+Pj4+Pj4KPj4+Pj4+PiBDYW4g dGhpcyBiZSBpbXBsZW1lbnRlZCBhcyBhIHdyYXBwZXIgb24gdG9wIG9mIGxpYmRybT8gU28gdGhh dCB0aGUKPj4+Pj4+PiB0cmVlIChvciBoYXNoIHRhYmxlKSBpc24ndCBjcmVhdGVkIGZvciBVTURz IHRoYXQgZG9uJ3QgbmVlZCBpdC4KPj4+Pj4+Cj4+Pj4+Pgo+Pj4+Pj4gTm8sIHRoZSBwcm9ibGVt IGlzIHRoYXQgYW4gYXBwbGljYXRpb24gZ2V0cyBhIENQVSBwb2ludGVyIGZyb20gb25lIEFQSQo+ Pj4+Pj4gYW5kCj4+Pj4+PiB0cmllcyB0byBpbXBvcnQgdGhhdCBwb2ludGVyIGludG8gYW5vdGhl ciBvbmUuCj4+Pj4+Pgo+Pj4+Pj4gSW4gb3RoZXIgd29yZHMgd2UgbmVlZCB0byBpbXBsZW1lbnQg dGhpcyBpbmRlcGVuZGVudCBvZiB0aGUgVU1EIHdobwo+Pj4+Pj4gbWFwcGVkCj4+Pj4+PiB0aGUg Qk8uCj4+Pj4+Cj4+Pj4+IFllYWgsIGl0IGNvdWxkIGJlIGFuIG9wdGlvbmFsIGZlYXR1cmUgb2Yg bGliZHJtLCBhbmQgb3RoZXIgY29tcG9uZW50cwo+Pj4+PiBzaG91bGQgYmUgYWJsZSB0byBkaXNh YmxlIGl0IHRvIHJlbW92ZSB0aGUgb3ZlcmhlYWQuCj4+Pj4KPj4+Pgo+Pj4+IFRoZSBvdmVyaGVh ZCBpcyBuZWdsaWdpYmxlLCB0aGUgcmVhbCBwcm9ibGVtIGlzIHRoZSBtZW1vcnkgZm9vdHByaW50 Lgo+Pj4+Cj4+Pj4gQSBicmllZiBsb29rIGF0IHRoZSBoYXNoIGltcGxlbWVudGF0aW9uIGluIGxp YmRybSBzaG93ZWQgdGhhdCB0aGlzIGlzCj4+Pj4gYWN0dWFsbHkgcmVhbGx5IGluZWZmaWNpZW50 Lgo+Pj4+Cj4+Pj4gSSB0aGluayB3ZSBoYXZlIHRoZSBjaG9pY2Ugb2YgaW1wbGVtZW50aW5nIGEg ci9iIHRyZWUgdG8gbWFwIHRoZSBDUFUKPj4+PiBwb2ludGVyCj4+Pj4gYWRkcmVzc2VzIG9yIGlt cGxlbWVudCBhIHF1YWRyYXRpYyB0cmVlIHRvIG1hcCB0aGUgaGFuZGxlcy4KPj4+Pgo+Pj4+IFRo ZSBsYXRlciBpcyBlYXN5IHRvIGRvIGFuZCB3b3VsZCBhbHNvIGFsbG93IHRvIGdldCByaWQgb2Yg dGhlIGhhc2ggdGFibGUKPj4+PiBhcwo+Pj4+IHdlbGwuCj4+Pgo+Pj4gV2UgY2FuIGFsc28gdXNl IHRoZSBoYXNoIHRhYmxlIGZyb20gbWVzYS9zcmMvdXRpbC4KPj4+Cj4+PiBJIGRvbid0IHRoaW5r IHRoZSBvdmVyaGVhZCB3b3VsZCBiZSBuZWdsaWdpYmxlLiBJdCB3b3VsZCBiZSBhIGxvZyhuKQo+ Pj4gaW5zZXJ0aW9uIGluIGJvX21hcCBhbmQgYSBsb2cobikgZGVsZXRpb24gaW4gYm9fdW5tYXAu IElmIHlvdSBkaWQKPj4+IGJvX21hcCtib191bm1hcCAxMDAwMCB0aW1lcywgd291bGQgaXQgYmUg bmVnbGlnaWJsZT8KPj4KPj4KPj4gQ29tcGFyZWQgdG8gd2hhdCB0aGUga2VybmVsIG5lZWRzIHRv IGRvIGZvciB1cGRhdGluZyB0aGUgcGFnZSB0YWJsZXMgaXQgaXMKPj4gbGVzcyB0aGFuIDElIG9m IHRoZSB0b3RhbCB3b3JrLgo+Pgo+PiBUaGUgcmVhbCBxdWVzdGlvbiBpcyBpZiBpdCB3b3VsZG4n dCBiZSBzaW1wbGVyIHRvIHVzZSBhIHRyZWUgZm9yIHRoZQo+PiBoYW5kbGVzLiBTaW5jZSB0aGUg aGFuZGxlcyBhcmUgZGVuc2UgeW91IGNhbiBqdXN0IHVzZSBhbiB1bmJhbGFuY2VkIHRyZWUKPj4g d2hpY2ggaXMgcmVhbGx5IGVhc3kuCj4+Cj4+IEZvciBhIHRyZWUgb2YgdGhlIENQVSBtYXBwaW5n cyB3ZSB3b3VsZCBuZWVkIGFuIHIvYiBpbnRlcnZhbCB0cmVlLCB3aGljaCBpcwo+PiBoYXJkIHRv IGltcGxlbWVudCBhbmQgcXVpdGUgc29tZSBvdmVya2lsbC4KPj4KPj4gRG8geW91IGhhdmUgYW55 IG51bWJlcnMgaG93IG1hbnkgQk9zIHJlYWxseSBnZXQgYSBDUFUgbWFwcGluZyBpbiBhIHJlYWwK Pj4gd29ybGQgYXBwbGljYXRpb24/Cj4KPiBXaXRob3V0IG91ciBzdWJhbGxvY2F0b3IsIHdlIHNv bWV0aW1lcyBleGNlZWRlZCB0aGUgbWF4LiBtbWFwIGxpbWl0Cj4gKH42NEspLiBJdCBzaG91bGQg YmUgbXVjaCBsZXNzIHdpdGggdGhlIHN1YmFsbG9jYXRvciB3aXRoIDEyOEtCIHNsYWJzLAo+IHBy b2JhYmx5IGEgZmV3IHRob3VzYW5kcy4KCklzIHRoZXJlIGEgd2F5IHRvIHZlcmlmeSB0aGF0IGl0 IGhhcyBwZXJmb3JtYW5jZSBpc3N1ZSBpZiBtb3ZpbmcgdGhlIGNwdSBtYXBwaW5nIGluIGxpYmRy bSBoYXNoIHRhYmxlCmZyb20ga2VybmVsIHNpZGU/CgpBRkFJVywgb25seSBvbmUgZ2FtZSB3aWxs IHVzZSB0aGF0IHdpdGggY2xvc2UgT0dMLgoKUmVnYXJkcywKSmVycnkKCj4KPiBNYXJlawo+Cl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmFtZC1nZnggbWFp bGluZyBsaXN0CmFtZC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vYW1kLWdmeAo=