From mboxrd@z Thu Jan 1 00:00:00 1970 From: William Davis Subject: RE: [PATCH 0/6] IOMMU/DMA map_resource support for peer-to-peer Date: Thu, 7 May 2015 16:23:07 +0000 Message-ID: References: <1430505138-2877-1-git-send-email-wdavis@nvidia.com> <20150506221818.GH24643@google.com> <554AC48A.2030209@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Language: en-US Sender: linux-pci-owner@vger.kernel.org To: Bjorn Helgaas , Yijing Wang Cc: Joerg Roedel , "open list:INTEL IOMMU (VT-d)" , "linux-pci@vger.kernel.org" , Terence Ripperda , John Hubbard , Jerome Glisse , Dave Jiang , "David S. Miller" , Alex Williamson List-Id: iommu@lists.linux-foundation.org DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogQmpvcm4gSGVsZ2FhcyBb bWFpbHRvOmJoZWxnYWFzQGdvb2dsZS5jb21dDQo+IFNlbnQ6IFRodXJzZGF5LCBNYXkgNywgMjAx NSA4OjEzIEFNDQo+IFRvOiBZaWppbmcgV2FuZw0KPiBDYzogV2lsbGlhbSBEYXZpczsgSm9lcmcg Um9lZGVsOyBvcGVuIGxpc3Q6SU5URUwgSU9NTVUgKFZULWQpOyBsaW51eC0NCj4gcGNpQHZnZXIu a2VybmVsLm9yZzsgVGVyZW5jZSBSaXBwZXJkYTsgSm9obiBIdWJiYXJkOyBKZXJvbWUgR2xpc3Nl OyBEYXZlDQo+IEppYW5nOyBEYXZpZCBTLiBNaWxsZXI7IEFsZXggV2lsbGlhbXNvbg0KPiBTdWJq ZWN0OiBSZTogW1BBVENIIDAvNl0gSU9NTVUvRE1BIG1hcF9yZXNvdXJjZSBzdXBwb3J0IGZvciBw ZWVyLXRvLXBlZXINCj4gDQo+IE9uIFdlZCwgTWF5IDYsIDIwMTUgYXQgODo0OCBQTSwgWWlqaW5n IFdhbmcgPHdhbmd5aWppbmdAaHVhd2VpLmNvbT4gd3JvdGU6DQo+ID4gT24gMjAxNS81LzcgNjox OCwgQmpvcm4gSGVsZ2FhcyB3cm90ZToNCj4gPj4gWytjYyBZaWppbmcsIERhdmUgSiwgRGF2ZSBN LCBBbGV4XQ0KPiA+Pg0KPiA+PiBPbiBGcmksIE1heSAwMSwgMjAxNSBhdCAwMTozMjoxMlBNIC0w NTAwLCB3ZGF2aXNAbnZpZGlhLmNvbSB3cm90ZToNCj4gPj4+IEZyb206IFdpbGwgRGF2aXMgPHdk YXZpc0BudmlkaWEuY29tPg0KPiA+Pj4NCj4gPj4+IEhpLA0KPiA+Pj4NCj4gPj4+IFRoaXMgcGF0 Y2ggc2VyaWVzIGFkZHMgRE1BIEFQSXMgdG8gbWFwIGFuZCB1bm1hcCBhIHN0cnVjdCByZXNvdXJj ZQ0KPiA+Pj4gdG8gYW5kIGZyb20gYSBQQ0kgZGV2aWNlJ3MgSU9WQSBkb21haW4sIGFuZCBpbXBs ZW1lbnRzIHRoZSBBTUQsDQo+ID4+PiBJbnRlbCwgYW5kIG5vbW11IHZlcnNpb25zIG9mIHRoZXNl IGludGVyZmFjZXMuDQo+ID4+Pg0KPiA+Pj4gVGhpcyBzb2x2ZXMgYSBsb25nLXN0YW5kaW5nIHBy b2JsZW0gd2l0aCB0aGUgZXhpc3RpbmcgRE1BLXJlbWFwcGluZw0KPiA+Pj4gaW50ZXJmYWNlcywg d2hpY2ggcmVxdWlyZSB0aGF0IGEgc3RydWN0IHBhZ2UgYmUgZ2l2ZW4gZm9yIHRoZSByZWdpb24N Cj4gPj4+IHRvIGJlIG1hcHBlZCBpbnRvIGEgZGV2aWNlJ3MgSU9WQSBkb21haW4uIFRoaXMgcmVx dWlyZW1lbnQgY2Fubm90DQo+ID4+PiBzdXBwb3J0IHBlZXIgZGV2aWNlIEJBUiByYW5nZXMsIGZv ciB3aGljaCBubyBzdHJ1Y3QgcGFnZXMgZXhpc3QuDQo+ID4+PiAuLi4NCj4gDQo+ID4+IEkgdGhp bmsgd2UgY3VycmVudGx5IGFzc3VtZSB0aGVyZSdzIG5vIHBlZXItdG8tcGVlciB0cmFmZmljLg0K PiA+Pg0KPiA+PiBJIGRvbid0IGtub3cgd2hldGhlciBjaGFuZ2luZyB0aGF0IHdpbGwgYnJlYWsg YW55dGhpbmcsIGJ1dCBJJ20NCj4gPj4gY29uY2VybmVkIGFib3V0IHRoZXNlOg0KPiA+Pg0KPiA+ PiAgIC0gUENJZSBNUFMgY29uZmlndXJhdGlvbiAoc2VlIHBjaWVfYnVzX2NvbmZpZ3VyZV9zZXR0 aW5ncygpKS4NCj4gPg0KPiA+IEkgdGhpbmsgaXQgc2hvdWxkIGJlIG9rIGZvciBQQ0llIE1QUyBj b25maWd1cmF0aW9uLCBQQ0lFX0JVU19QRUVSMlBFRVINCj4gPiBmb3JjZSBldmVyeSBkZXZpY2Un cyBNUFMgdG8gMTI4Qiwgd2hhdCBpdHMgY29uY2VybiBpcyB0aGUgVExQIHBheWxvYWQNCj4gPiBz aXplLiBJbiB0aGlzIHNlcmllcywgaXQgc2VlbXMgdG8gb25seSBtYXAgYSBpb3ZhIGZvciBkZXZp Y2UgYmFyIHJlZ2lvbi4NCj4gDQo+IE1QUyBjb25maWd1cmF0aW9uIG1ha2VzIGFzc3VtcHRpb25z IGFib3V0IHdoZXRoZXIgdGhlcmUgd2lsbCBiZSBhbnkgcGVlci0NCj4gdG8tcGVlciB0cmFmZmlj LiAgSWYgdGhlcmUgd2lsbCBiZSBub25lLCBNUFMgY2FuIGJlIGNvbmZpZ3VyZWQgbW9yZQ0KPiBh Z2dyZXNzaXZlbHkuDQo+IA0KPiBJIGRvbid0IHRoaW5rIExpbnV4IGhhcyBhbnkgd2F5IHRvIGRl dGVjdCB3aGV0aGVyIGEgZHJpdmVyIGlzIGRvaW5nIHBlZXItDQo+IHRvLXBlZXIsIGFuZCB0aGVy ZSdzIG5vIHdheSB0byBwcmV2ZW50IGEgZHJpdmVyIGZyb20gZG9pbmcgaXQuDQo+IFdlJ3JlIHN0 dWNrIHdpdGggcmVxdWlyaW5nIHRoZSB1c2VyIHRvIHNwZWNpZnkgYm9vdCBvcHRpb25zDQo+ICgi cGNpPXBjaWVfYnVzX3NhZmUiLCAicGNpPXBjaWVfYnVzX3BlcmYiLCAicGNpPXBjaWVfYnVzX3Bl ZXIycGVlciIsDQo+IGV0Yy4pIHRoYXQgdGVsbCB0aGUgUENJIGNvcmUgd2hhdCB0aGUgdXNlciBl eHBlY3RzIHRvIGhhcHBlbi4NCj4gDQo+IFRoaXMgaXMgYSB0ZXJyaWJsZSB1c2VyIGV4cGVyaWVu Y2UuICBUaGUgdXNlciBoYXMgbm8gd2F5IHRvIHRlbGwgd2hhdA0KPiBkcml2ZXJzIGFyZSBnb2lu ZyB0byBkby4gIElmIGhlIHNwZWNpZmllcyB0aGUgd3JvbmcgdGhpbmcsIGUuZy4sICJhc3N1bWUg bm8NCj4gcGVlci10by1wZWVyIHRyYWZmaWMsIiBhbmQgdGhlbiBsb2FkcyBhIGRyaXZlciB0aGF0 IGRvZXMgcGVlci10by1wZWVyLCB0aGUNCj4ga2VybmVsIHdpbGwgY29uZmlndXJlIE1QUyBhZ2dy ZXNzaXZlbHkgYW5kIHdoZW4gdGhlIGRldmljZSBkb2VzIGEgcGVlci10by0NCj4gcGVlciB0cmFu c2ZlciwgaXQgbWF5IGNhdXNlIGEgTWFsZm9ybWVkIFRMUCBlcnJvci4NCj4gDQoNCkkgYWdyZWUg dGhhdCB0aGlzIGlzbid0IGEgZ3JlYXQgdXNlciBleHBlcmllbmNlLCBidXQganVzdCB3YW50IHRv IGNsYXJpZnkgdGhhdCB0aGlzIHByb2JsZW0gaXMgb3J0aG9nb25hbCB0byB0aGlzIHBhdGNoIHNl cmllcywgY29ycmVjdD8NCg0KUHJpb3IgdG8gdGhpcyBzZXJpZXMsIHRoZSBNUFMgbWlzbWF0Y2gg aXMgc3RpbGwgcG9zc2libGUgd2l0aCBwMnAgdHJhZmZpYywgYnV0IHdoZW4gYW4gSU9NTVUgaXMg ZW5hYmxlZCBwMnAgdHJhZmZpYyB3aWxsIHJlc3VsdCBpbiBETUFSIGZhdWx0cy4gVGhlIGFpbSBv ZiB0aGUgc2VyaWVzIGlzIHRvIGFsbG93IGRyaXZlcnMgdG8gZml4IHRoZSBsYXR0ZXIsIG5vdCB0 aGUgZm9ybWVyLg0KDQpUaGFua3MsDQpXaWxsDQoNCi0tDQpudnB1YmxpYw0K