From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: RFC: unpinned DMA-buf exporting v2 Date: Mon, 19 Mar 2018 15:09:36 +0100 Message-ID: <20180319140936.GO14155@phenom.ffwll.local> References: <20180316132049.1748-1-christian.koenig@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <20180316132049.1748-1-christian.koenig-5C7GfCeVMHo@public.gmane.org> 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: Christian =?iso-8859-1?Q?K=F6nig?= Cc: linaro-mm-sig-cunTk1MwBs8s++Sfvej+rw@public.gmane.org, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, linux-media-u79uwXL29TY76Z2rM5mHXA@public.gmane.org T24gRnJpLCBNYXIgMTYsIDIwMTggYXQgMDI6MjA6NDRQTSArMDEwMCwgQ2hyaXN0aWFuIEvDtm5p ZyB3cm90ZToKPiBIaSBldmVyeWJvZHksCj4gCj4gc2luY2UgSSd2ZSBnb3QgcG9zaXRpdmUgZmVl ZGJhY2sgZnJvbSBEYW5pZWwgSSBjb250aW51ZWQgd29ya2luZyBvbiB0aGlzIGFwcHJvYWNoLgo+ IAo+IEEgZmV3IGlzc3VlcyBhcmUgc3RpbGwgb3BlbjoKPiAxLiBEYW5pZWwgc3VnZ2VzdGVkIHRo YXQgSSBtYWtlIHRoZSBpbnZhbGlkYXRlX21hcHBpbmdzIGNhbGxiYWNrIGEgcGFyYW1ldGVyIG9m IGRtYV9idWZfYXR0YWNoKCkuCj4gCj4gVGhpcyBhcHByb2FjaCB1bmZvcnR1bmF0ZWx5IHdvbid0 IHdvcmsgYmVjYXVzZSB3aGVuIHRoZSBhdHRhY2htZW50IGlzCj4gY3JlYXRlZCB0aGUgaW1wb3J0 ZXIgaXMgbm90IG5lY2Vzc2FyaWx5IHJlYWR5IHRvIGhhbmRsZSBpbnZhbGlkYXRpb24KPiBldmVu dHMuCgpXaHkgZG8geW91IGhhdmUgdGhpcyBjb25zdHJhaW50PyBUaGlzIHNvdW5kcyBhIGJpdCBs aWtlIGludmVydGVkCmNyZWF0ZS90ZWFyZG93biBzZXF1ZW5jZSB0cm91Ymxlcywgd2hlcmUgeW91 IG1ha2UgYW4gb2JqZWN0ICJsaWZlIiBiZWZvcmUKdGhlIHRoaW5nIGlzIGZ1bGx5IHNldCB1cC4K CkNhbid0IHdlIGZpeCB0aGlzIGJ5IGNyZWF0aW5nIHRoZSBlbnRpcmUgdHRtIHNjYWZmb2xkaW5n IHlvdSdsbCBuZWVkIGZvciBhCmRtYS1idWYgdXBmcm9udCwgYW5kIG9ubHkgb25jZSB5b3UgaGF2 ZSBldmVyeXRoaW5nIHdlIGdyYWIgdGhlIGRtYV9idWYKYXR0YWNobWVudD8gQXQgdGhhdCBwb2lu dCB5b3UgcmVhbGx5IHNob3VsZCBiZSBhYmxlIHRvIGV2aWN0IGJ1ZmZlcnMKYWdhaW4uCgpOb3Qg cmVxdWlyaW5nIGludmFsaWRhdGVfbWFwcGluZyB0byBiZSBzZXQgdG9nZXRoZXIgd2l0aCB0aGUg YXR0YWNobWVudAptZWFucyB3ZSBjYW4ndCBldmVyIHJlcXVpcmUgaW1wb3J0ZXJzIHRvIHN1cHBv cnQgaXQgKGUuZy4gdG8gYWRkcmVzcyB5b3VyCmNvbmNlcm4gd2l0aCB0aGUgdXNlcnNwYWNlIGRt YS1idWYgdXNlcnB0ciBtYWdpYykuCgo+IEUuZy4gaW4gdGhlIGFtZGdwdSBleGFtcGxlIHdlIGZp cnN0IG5lZWQgdG8gc2V0dXAgdGhlIGltcG9ydGVkIEdFTS9UTU0KPiBvYmplY3RzIGFuZCBpbnN0 YWxsIHRoYXQgaW4gdGhlIGF0dGFjaG1lbnQuCj4gCj4gTXkgc29sdXRpb24gaXMgdG8gaW50cm9k dWNlIGEgc2VwYXJhdGUgZnVuY3Rpb24gdG8gZ3JhYiB0aGUgbG9ja3MgYW5kCj4gc2V0IHRoZSBj YWxsYmFjaywgdGhpcyBmdW5jdGlvbiBjb3VsZCB0aGVuIGJlIHVzZWQgdG8gcGluIHRoZSBidWZm ZXIKPiBsYXRlciBvbiBpZiB0aGF0IHR1cm5zIG91dCB0byBiZSBuZWNlc3NhcnkgYWZ0ZXIgYWxs Lgo+IAo+IDIuIFdpdGggbXkgZXhhbXBsZSBzZXR1cCB0aGlzIGN1cnJlbnRseSByZXN1bHRzIGlu IGEgcGluZy9wb25nIHNpdHVhdGlvbgo+IGJlY2F1c2UgdGhlIGV4cG9ydGVyIHByZWZlcnMgYSBW UkFNIHBsYWNlbWVudCB3aGlsZSB0aGUgaW1wb3J0ZXIgcHJlZmVycwo+IGEgR1RUIHBsYWNlbWVu dC4KPiAKPiBUaGlzIHJlc3VsdHMgaW4gcXVpdGUgYSBwZXJmb3JtYW5jZSBkcm9wLCBidXQgY2Fu IGJlIGZpeGVkIGJ5IGEgc2ltcGxlCj4gbWVzYSBwYXRjaCB3aGljaCBhbGxvd3Mgc2hyZWQgQk9z IHRvIGJlIHBsYWNlZCBpbiBib3RoIFZSQU0gYW5kIEdUVC4KPiAKPiBRdWVzdGlvbiBpcyB3aGF0 IHNob3VsZCB3ZSBkbyBpbiB0aGUgbWVhbnRpbWU/IEFjY2VwdCB0aGUgcGVyZm9ybWFuY2UKPiBk cm9wIG9yIG9ubHkgYWxsb3cgdW5waW5uZWQgc2hhcmluZyB3aXRoIG5ldyBNZXNhPwoKTWF5YmUg dGhlIGV4cG9ydGVyIHNob3VsZCBub3QgdHJ5IHRvIG1vdmUgc3R1ZmYgYmFjayBpbnRvIFZSQU0g YXMgbG9uZyBhcwp0aGVyZSdzIGFuIGFjdGl2ZSBkbWEtYnVmPyBJIG1lYW4gaXQncyByZWFsbHkg Y29vbCB0aGF0IGl0IHdvcmtzLCBidXQKbWF5YmUgbGV0J3MganVzdCBkbyB0aGlzIGZvciBhIHRl Y2ggZGVtbyA6LSkKCk9mIGNvdXJzZSBpZiBpdCB0aGVuIHJ1bnMgb3V0IG9mIFRUIHRoZW4gaXQg Y291bGQgc3RpbGwgdHJ5IHRvIG1vdmUgaXQKYmFjayBpbi4gQW5kICJsZXQncyBub3QgbW92ZSBp dCB3aGVuIGl0J3MgaW1wb3J0ZWQiIGlzIHByb2JhYmx5IHRvbyBzdHVwaWQKdG9vLCBhbmQgd2ls bCBuZWVkIHRvIGJlIGltcHJvdmVkIGFnYWluIHdpdGggbW9yZSBoZXVyaXN0aWNzLCBidXQgd291 bGQgYXQKbGVhc3QgZ2V0IGl0IG9mZiB0aGUgZ3JvdW5kLgoKTG9uZyB0ZXJtIHlvdSBtaWdodCB3 YW50IHRvIG1vdmUgcGVyaGFwcyBvbmNlIHBlciAxMCBzZWNvbmRzIG9yIHNvLCB0byBnZXQKaWRs ZSBpbXBvcnRlcnMgdG8gZGV0YWNoLiBBZGp1c3QgMTBzIHRvIG1hdGNoIHdoYXRldmVyIGJlbmNo bWFyay93b3JrbG9hZAp5b3UgY2FyZSBhYm91dC4KLURhbmllbAotLSAKRGFuaWVsIFZldHRlcgpT b2Z0d2FyZSBFbmdpbmVlciwgSW50ZWwgQ29ycG9yYXRpb24KaHR0cDovL2Jsb2cuZmZ3bGwuY2gK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KYW1kLWdmeCBt YWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4Cg==