From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksandr Andrushchenko Subject: Re: [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent Date: Fri, 18 Jan 2019 09:40:00 +0000 Message-ID: <1cfc5cb4-e481-5d71-29df-958db76fb681@epam.com> References: <20190115140420.4652-1-andr2000@gmail.com> <20190116063002.jq3aas6ofhaogmyk@sirius.home.kraxel.org> <20190116063631.GA10881@infradead.org> <042fe794-dec6-6d9d-5b68-6f142790f5c7@epam.com> <20190117091815.GA7090@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190117091815.GA7090@infradead.org> Content-Language: en-US Content-ID: <204A5FE564B9DB4094A3E9EF25F30501@eurprd03.prod.outlook.com> Sender: linux-kernel-owner@vger.kernel.org To: Christoph Hellwig Cc: Gerd Hoffmann , Oleksandr Andrushchenko , "xen-devel@lists.xenproject.org" , "linux-kernel@vger.kernel.org" , "dri-devel@lists.freedesktop.org" , "daniel.vetter@intel.com" , "jgross@suse.com" , "boris.ostrovsky@oracle.com" , "noralf@tronnes.org" List-Id: dri-devel@lists.freedesktop.org T24gMS8xNy8xOSAxMToxOCBBTSwgQ2hyaXN0b3BoIEhlbGx3aWcgd3JvdGU6DQo+IE9uIFdlZCwg SmFuIDE2LCAyMDE5IGF0IDA2OjQzOjI5QU0gKzAwMDAsIE9sZWtzYW5kciBBbmRydXNoY2hlbmtv IHdyb3RlOg0KPj4+IFRoaXMgd2hvbGUgaXNzdWUga2VlcHMgZ2V0dGluZyBtb3JlIGFuZCBtb3Jl IGNvbmZ1c2luZy4NCj4+IFdlbGwsIEkgZG9uJ3QgcmVhbGx5IGRvIERNQSBoZXJlLCBidXQgaW5z dGVhZCB0aGUgYnVmZmVycyBpbg0KPj4gcXVlc3Rpb24gYXJlIHNoYXJlZCB3aXRoIG90aGVyIFhl biBkb21haW4sIHNvIGVmZmVjdGl2ZWx5IGl0DQo+PiBjb3VsZCBiZSB0aG91Z2h0IG9mIHNvbWUg c29ydCBvZiBETUEgaGVyZSwgd2hlcmUgdGhlICJkZXZpY2UiIGlzDQo+PiB0aGF0IHJlbW90ZSBk b21haW4uIElmIHRoZSBidWZmZXJzIGFyZSBub3QgZmx1c2hlZCB0aGVuIHRoZQ0KPj4gcmVtb3Rl IHBhcnQgc2VlcyBzb21lIGluY29uc2lzdGVuY3kgd2hpY2ggaW4gbXkgY2FzZSByZXN1bHRzDQo+ PiBpbiBhcnRpZmFjdHMgb24gc2NyZWVuIHdoaWxlIGRpc3BsYXlpbmcgdGhlIGJ1ZmZlcnMuDQo+ PiBXaGVuIGJ1ZmZlcnMgYXJlIGFsbG9jYXRlZCB2aWEgRE1BIEFQSSB0aGVuIHRoZXJlIGFyZSBu byBhcnRpZmFjdHM7DQo+PiBpZiBidWZmZXJzIGFyZSBhbGxvY2F0ZWQgd2l0aCBzaG1lbSArIERN QSBtYXBwaW5nIHRoZW4gdGhlcmUgYXJlIG5vDQo+PiBhcnRpZmFjdHMgYXMgd2VsbC4NCj4+IFRo ZSBvbmx5IG9mZmVuZGluZyB1c2UtY2FzZSBpcyB3aGVuIEkgdXNlIHNobWVtIGJhY2tlZCBidWZm ZXJzLA0KPj4gYnV0IGRvIG5vdCBmbHVzaCB0aGVtDQo+IFRoZSByaWdodCBhbnN3ZXIgd291bGQg YmUgdG8gaW1wbGVtZW50IGNhY2hlIG1haW50YWluYW5jZSBob29rcyBmb3INCj4gdGhpcyBjYXNl IGluIHRoZSBYZW4gYXJjaCBjb2RlLiAgVGhlc2Ugd291bGQgYmFzaWNhbGx5IGxvb2sgdGhlIHNh bWUNCj4gYXMgdGhlIGxvdy1sZXZlbCBjYWNoZSBtYWludGFpbmFuY2UgdXNlZCBieSB0aGUgRE1B IG9wcywgYnV0IHdpdGhvdXQNCj4gZ29pbmcgdGhyb3VnaCB0aGUgRE1BIG1hcHBpbmcgbGF5ZXIs IGluIGZhY3QgdGhleSBzaG91bGQgcHJvYmFibHkNCj4gcmV1c2UgdGhlIHNhbWUgbG93LWxldmVs IGFzc2VtYmx5IHJvdXRpbmVzLg0KPg0KPiBJIGRvbid0IHRoaW5rIHRoaXMgaXMgdGhlIGZpcnN0 IHVzYWdlIG9mIHN1Y2ggWGVuIGJ1ZmZlciBzaGFyaW5nLCBzbw0KPiB3aGF0IGRvIHRoZSBvdGhl ciB1c2VycyBkbz8NCkknbGwgaGF2ZSB0byBnZXQgZXZlbiBkZWVwZXIgaW50byBpdC4gSW5pdGlh bGx5IEkNCmxvb2tlZCBhdCB0aGUgY29kZSwgYnV0IGRpZG4ndCBmaW5kIGFueXRoaW5nIHVzZWZ1 bC4NCk9yIG1heWJlIEkgaGF2ZSBqdXN0IG92ZXJsb29rZWQgb2J2aW91cyB0aGluZ3MgdGhlcmUN Cg0KVGhhbmsgeW91LA0KT2xla3NhbmRy