From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Hellstrom Subject: [RFC PATCH RESEND 0/3] mm modifications / helpers for emulated GPU coherent memory Date: Thu, 21 Mar 2019 13:22:22 +0000 Message-ID: <20190321132140.114878-1-thellstrom@vmware.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Language: en-US Content-ID: Sender: linux-kernel-owner@vger.kernel.org To: "dri-devel@lists.freedesktop.org" , Linux-graphics-maintainer Cc: Thomas Hellstrom , Andrew Morton , Matthew Wilcox , Will Deacon , Peter Zijlstra , Rik van Riel , Minchan Kim , Michal Hocko , Huang Ying , Souptick Joarder , =?utf-8?B?SsOpcsO0bWUgR2xpc3Nl?= , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" List-Id: dri-devel@lists.freedesktop.org Q2M6IEFuZHJldyBNb3J0b24gPGFrcG1AbGludXgtZm91bmRhdGlvbi5vcmc+DQpDYzogTWF0dGhl dyBXaWxjb3ggPHdpbGx5QGluZnJhZGVhZC5vcmc+DQpDYzogV2lsbCBEZWFjb24gPHdpbGwuZGVh Y29uQGFybS5jb20+DQpDYzogUGV0ZXIgWmlqbHN0cmEgPHBldGVyekBpbmZyYWRlYWQub3JnPg0K Q2M6IFJpayB2YW4gUmllbCA8cmllbEBzdXJyaWVsLmNvbT4NCkNjOiBNaW5jaGFuIEtpbSA8bWlu Y2hhbkBrZXJuZWwub3JnPg0KQ2M6IE1pY2hhbCBIb2NrbyA8bWhvY2tvQHN1c2UuY29tPg0KQ2M6 IEh1YW5nIFlpbmcgPHlpbmcuaHVhbmdAaW50ZWwuY29tPg0KQ2M6IFNvdXB0aWNrIEpvYXJkZXIg PGpyZHIubGludXhAZ21haWwuY29tPg0KQ2M6ICJKw6lyw7RtZSBHbGlzc2UiIDxqZ2xpc3NlQHJl ZGhhdC5jb20+DQpDYzogbGludXgtbW1Aa3ZhY2sub3JnDQpDYzogbGludXgta2VybmVsQHZnZXIu a2VybmVsLm9yZw0KDQpSZXNlbmRpbmcgc2luY2UgbGFzdCBzZXJpZXMgd2FzIHNlbnQgdGhyb3Vn aCBhIG1pcy1jb25maWd1cmVkIFNNVFAgc2VydmVyLg0KDQpIaSwNClRoaXMgaXMgYW4gZWFybHkg UkZDIHRvIG1ha2Ugc3VyZSBJIGRvbid0IGdvIHRvbyBmYXIgaW4gdGhlIHdyb25nIGRpcmVjdGlv bi4NCg0KTm9uLWNvaGVyZW50IEdQVXMgdGhhdCBjYW4ndCBkaXJlY3RseSBzZWUgY29udGVudHMg aW4gQ1BVLXZpc2libGUgbWVtb3J5LA0KbGlrZSBWTVdhcmUncyBTVkdBIGRldmljZSwgcnVuIGlu dG8gdHJvdWJsZSB3aGVuIHRyeWluZyB0byBpbXBsZW1lbnQNCmNvaGVyZW50IG1lbW9yeSByZXF1 aXJlbWVudHMgb2YgbW9kZXJuIGdyYXBoaWNzIEFQSXMuIEV4YW1wbGVzIGFyZQ0KVnVsa2FuIGFu ZCBPcGVuR0wgNC40J3MgQVJCX2J1ZmZlcl9zdG9yYWdlLg0KDQpUbyByZW1lZHksIHdlIG5lZWQg dG8gZW11bGF0ZSBjb2hlcmVudCBtZW1vcnkuIFR5cGljYWxseSB3aGVuIGl0J3MgZGV0ZWN0ZWQN CnRoYXQgYSBidWZmZXIgb2JqZWN0IGlzIGFib3V0IHRvIGJlIGFjY2Vzc2VkIGJ5IHRoZSBHUFUs IHdlIG5lZWQgdG8NCmdhdGhlciB0aGUgcmFuZ2VzIHRoYXQgaGF2ZSBiZWVuIGRpcnRpZWQgYnkg dGhlIENQVSBzaW5jZSB0aGUgbGFzdCBvcGVyYXRpb24sDQphcHBseSBhbiBvcGVyYXRpb24gdG8g bWFrZSB0aGUgY29udGVudCB2aXNpYmxlIHRvIHRoZSBHUFUgYW5kIGNsZWFyIHRoZQ0KdGhlIGRp cnR5IHRyYWNraW5nLg0KDQpEZXBlbmRpbmcgb24gdGhlIHNpemUgb2YgdGhlIGJ1ZmZlciBvYmpl Y3QgYW5kIHRoZSBhY2Nlc3MgcGF0dGVybiB0aGVyZSBhcmUNCnR3byBtYWpvciBwb3NzaWJpbGl0 aWVzOg0KDQoxKSBVc2UgcGFnZV9ta3dyaXRlKCkgYW5kIHBmbl9ta3dyaXRlKCkuIChHUFUgYnVm ZmVyIG9iamVjdHMgYXJlIGJhY2tlZA0KZWl0aGVyIGJ5IFBDSSBkZXZpY2UgbWVtb3J5IG9yIGJ5 IGRyaXZlci1hbGxvY2VkIHBhZ2VzKS4NClRoZSBkaXJ0eS10cmFja2luZyBuZWVkcyB0byBiZSBy ZXNldCBieSB3cml0ZS1wcm90ZWN0aW5nIHRoZSBhZmZlY3RlZCBwdGVzDQphbmQgZmx1c2ggdGxi LiBUaGlzIGhhcyBhIGNvbXBsZXhpdHkgb2YgTyhudW1fZGlydHlfcGFnZXMpLCBidXQgdGhlDQp3 cml0ZSBwYWdlLWZhdWx0IGlzIG9mIGNvdXJzZSBjb3N0bHkuDQoNCjIpIFVzZSBoYXJkd2FyZSBk aXJ0eS1mbGFncyBpbiB0aGUgcHRlcy4gVGhlIGRpcnR5LXRyYWNraW5nIG5lZWRzIHRvIGJlIHJl c2V0DQpieSBjbGVhcmluZyB0aGUgZGlydHkgYml0cyBhbmQgZmx1c2ggdGxiLiBUaGlzIGhhcyBh IGNvbXBsZXhpdHkgb2YNCk8obnVtX2J1ZmZlcl9vYmplY3RfcGFnZXMpIGFuZCBkaXJ0eSBiaXRz IG5lZWQgdG8gYmUgc2Nhbm5lZCBpbiBmdWxsIGJlZm9yZQ0KZWFjaCBncHUtYWNjZXNzLg0KDQpT byBpbiBwcmFjdGljZSB0aGUgdHdvIG1ldGhvZHMgbmVlZCB0byBiZSBpbnRlcmxlYXZlZCBmb3Ig YmVzdCBwZXJmb3JtYW5jZS4NCg0KU28gdG8gZmFjaWxpdGF0ZSB0aGlzLCBJIHByb3Bvc2UgdHdv IG5ldyBoZWxwZXJzLCBhcHBseV9hc193cnByb3RlY3QoKSBhbmQNCmFwcGx5X2FzX2NsZWFuKCkg KCJhcyIgc3RhbmRzIGZvciBhZGRyZXNzLXNwYWNlKSBib3RoIGluc3BpcmVkIGJ5DQp1bm1hcF9t YXBwaW5nX3JhbmdlKCkuIFVzZXJzIG9mIHRoZXNlIGhlbHBlcnMgYXJlIGluIHRoZSBtYWtpbmcs IGJ1dCBuZWVkcw0Kc29tZSBjbGVhbmluZy11cC4NCg0KVGhlcmUncyBhbHNvIGEgY2hhbmdlIHRv IHhfbWt3cml0ZSgpIHRvIGFsbG93IGRyb3BwaW5nIHRoZSBtbWFwX3NlbSB3aGlsZQ0Kd2FpdGlu Zy4NCg0KQW55IGNvbW1lbnRzIG9yIHN1Z2dlc3Rpb25zIGFwcHJlY2lhdGVkLg0KDQpUaGFua3Ms DQpUaG9tYXMNCg0KDQoNCg==