From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kuehling, Felix" Subject: Re: [PATCH v15 11/17] drm/amdgpu, arm64: untag user pointers Date: Tue, 7 May 2019 16:43:44 +0000 Message-ID: References: <84676a97cec129eb7a10559ceae2bec526160ad6.1557160186.git.andreyknvl@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <84676a97cec129eb7a10559ceae2bec526160ad6.1557160186.git.andreyknvl@google.com> Content-Language: en-US Content-ID: Sender: linux-kernel-owner@vger.kernel.org To: Andrey Konovalov , "linux-arm-kernel@lists.infradead.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "amd-gfx@lists.freedesktop.org" , "dri-devel@lists.freedesktop.org" , "linux-rdma@vger.kernel.org" , "linux-media@vger.kernel.org" , "kvm@vger.kernel.org" , "linux-kselftest@vger.kernel.org" Cc: Catalin Marinas , Vincenzo Frascino , Will Deacon , Mark Rutland , Andrew Morton , Greg Kroah-Hartman , Kees Cook , Yishai Hadas , "Deucher, Alexander" , "Koenig, Christian" , Mauro Carvalho Chehab , Jens Wiklander , Alex Williamson , Leon Romanovsky , Dmitry Vyukov , Kostya Serebryany , Evgeniy Stepanov , Lee Smith , Ramana List-Id: linux-rdma@vger.kernel.org T24gMjAxOS0wNS0wNiAxMjozMCBwLm0uLCBBbmRyZXkgS29ub3ZhbG92IHdyb3RlOg0KPiBbQ0FV VElPTjogRXh0ZXJuYWwgRW1haWxdDQo+DQo+IFRoaXMgcGF0Y2ggaXMgYSBwYXJ0IG9mIGEgc2Vy aWVzIHRoYXQgZXh0ZW5kcyBhcm02NCBrZXJuZWwgQUJJIHRvIGFsbG93IHRvDQo+IHBhc3MgdGFn Z2VkIHVzZXIgcG9pbnRlcnMgKHdpdGggdGhlIHRvcCBieXRlIHNldCB0byBzb21ldGhpbmcgZWxz ZSBvdGhlcg0KPiB0aGFuIDB4MDApIGFzIHN5c2NhbGwgYXJndW1lbnRzLg0KPg0KPiBJbiBhbWRn cHVfZ2VtX3VzZXJwdHJfaW9jdGwoKSBhbmQgYW1kZ3B1X2FtZGtmZF9ncHV2bS5jL2luaXRfdXNl cl9wYWdlcygpDQo+IGFuIE1NVSBub3RpZmllciBpcyBzZXQgdXAgd2l0aCBhICh0YWdnZWQpIHVz ZXJzcGFjZSBwb2ludGVyLiBUaGUgdW50YWdnZWQNCj4gYWRkcmVzcyBzaG91bGQgYmUgdXNlZCBz byB0aGF0IE1NVSBub3RpZmllcnMgZm9yIHRoZSB1bnRhZ2dlZCBhZGRyZXNzIGdldA0KPiBjb3Jy ZWN0bHkgbWF0Y2hlZCB1cCB3aXRoIHRoZSByaWdodCBCTy4gVGhpcyBwYXRjaCB1bnRhZyB1c2Vy IHBvaW50ZXJzIGluDQo+IGFtZGdwdV9nZW1fdXNlcnB0cl9pb2N0bCgpIGZvciB0aGUgR0VNIGNh c2UgYW5kIGluIGFtZGdwdV9hbWRrZmRfZ3B1dm1fDQo+IGFsbG9jX21lbW9yeV9vZl9ncHUoKSBm b3IgdGhlIEtGRCBjYXNlLiBUaGlzIGFsc28gbWFrZXMgc3VyZSB0aGF0IGFuDQo+IHVudGFnZ2Vk IHBvaW50ZXIgaXMgcGFzc2VkIHRvIGFtZGdwdV90dG1fdHRfZ2V0X3VzZXJfcGFnZXMoKSwgd2hp Y2ggdXNlcw0KPiBpdCBmb3Igdm1hIGxvb2t1cHMuDQo+DQo+IFN1Z2dlc3RlZC1ieTogS3VlaGxp bmcsIEZlbGl4IDxGZWxpeC5LdWVobGluZ0BhbWQuY29tPg0KPiBTaWduZWQtb2ZmLWJ5OiBBbmRy ZXkgS29ub3ZhbG92IDxhbmRyZXlrbnZsQGdvb2dsZS5jb20+DQoNCkFja2VkLWJ5OiBGZWxpeCBL dWVobGluZyA8RmVsaXguS3VlaGxpbmdAYW1kLmNvbT4NCg0KDQo+IC0tLQ0KPiAgIGRyaXZlcnMv Z3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9hbWRrZmRfZ3B1dm0uYyB8IDIgKy0NCj4gICBkcml2 ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZ2VtLmMgICAgICAgICAgfCAyICsrDQo+ICAg MiBmaWxlcyBjaGFuZ2VkLCAzIGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkNCj4NCj4gZGlm ZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9hbWRrZmRfZ3B1dm0u YyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9hbWRrZmRfZ3B1dm0uYw0KPiBp bmRleCAxOTIxZGVjM2RmN2EuLjIwY2FjNDRlZDQ0OSAxMDA2NDQNCj4gLS0tIGEvZHJpdmVycy9n cHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2FtZGtmZF9ncHV2bS5jDQo+ICsrKyBiL2RyaXZlcnMv Z3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9hbWRrZmRfZ3B1dm0uYw0KPiBAQCAtMTEyMSw3ICsx MTIxLDcgQEAgaW50IGFtZGdwdV9hbWRrZmRfZ3B1dm1fYWxsb2NfbWVtb3J5X29mX2dwdSgNCj4g ICAgICAgICAgICAgICAgICBhbGxvY19mbGFncyA9IDA7DQo+ICAgICAgICAgICAgICAgICAgaWYg KCFvZmZzZXQgfHwgISpvZmZzZXQpDQo+ICAgICAgICAgICAgICAgICAgICAgICAgICByZXR1cm4g LUVJTlZBTDsNCj4gLSAgICAgICAgICAgICAgIHVzZXJfYWRkciA9ICpvZmZzZXQ7DQo+ICsgICAg ICAgICAgICAgICB1c2VyX2FkZHIgPSB1bnRhZ2dlZF9hZGRyKCpvZmZzZXQpOw0KPiAgICAgICAg ICB9IGVsc2UgaWYgKGZsYWdzICYgQUxMT0NfTUVNX0ZMQUdTX0RPT1JCRUxMKSB7DQo+ICAgICAg ICAgICAgICAgICAgZG9tYWluID0gQU1ER1BVX0dFTV9ET01BSU5fR1RUOw0KPiAgICAgICAgICAg ICAgICAgIGFsbG9jX2RvbWFpbiA9IEFNREdQVV9HRU1fRE9NQUlOX0NQVTsNCj4gZGlmZiAtLWdp dCBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9nZW0uYyBiL2RyaXZlcnMvZ3B1 L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9nZW0uYw0KPiBpbmRleCBkMjFkZDJmMzY5ZGEuLjk4NWNi ODJiMmFhNiAxMDA2NDQNCj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1 X2dlbS5jDQo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9nZW0uYw0K PiBAQCAtMjg2LDYgKzI4Niw4IEBAIGludCBhbWRncHVfZ2VtX3VzZXJwdHJfaW9jdGwoc3RydWN0 IGRybV9kZXZpY2UgKmRldiwgdm9pZCAqZGF0YSwNCj4gICAgICAgICAgdWludDMyX3QgaGFuZGxl Ow0KPiAgICAgICAgICBpbnQgcjsNCj4NCj4gKyAgICAgICBhcmdzLT5hZGRyID0gdW50YWdnZWRf YWRkcihhcmdzLT5hZGRyKTsNCj4gKw0KPiAgICAgICAgICBpZiAob2Zmc2V0X2luX3BhZ2UoYXJn cy0+YWRkciB8IGFyZ3MtPnNpemUpKQ0KPiAgICAgICAgICAgICAgICAgIHJldHVybiAtRUlOVkFM Ow0KPg0KPiAtLQ0KPiAyLjIxLjAuMTAyMC5nZjI4MjBjZjAxYS1nb29nDQo+DQo=