From mboxrd@z Thu Jan 1 00:00:00 1970 From: Harry Wentland Subject: Re: RFC for a render API to support adaptive sync and VRR Date: Tue, 10 Apr 2018 13:52:03 -0400 Message-ID: <7449b5bf-c60c-b38b-b6d2-1fef281226f8@amd.com> References: <435ebd04-0435-5a6a-9f1e-e4c4fc629aa9@amd.com> <20180409214554.GB13967@intel.com> <1e8d1857-faba-85da-0136-ea7c29ec1b84@amd.com> <54baa87e-33a9-bd69-a309-d61176eb4e8d@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <54baa87e-33a9-bd69-a309-d61176eb4e8d-5C7GfCeVMHo@public.gmane.org> Content-Language: en-US List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: =?UTF-8?Q?Nicolai_H=c3=a4hnle?= , "Cyr, Aric" , "Koenig, Christian" , =?UTF-8?Q?Michel_D=c3=a4nzer?= , Manasi Navare Cc: Daniel Vetter , "Daenzer, Michel" , amd-gfx mailing list , dri-devel , "Deucher, Alexander" , "Koo, Anthony" List-Id: dri-devel@lists.freedesktop.org T24gMjAxOC0wNC0xMCAxMjozNyBQTSwgTmljb2xhaSBIw6RobmxlIHdyb3RlOgo+IE9uIDEwLjA0 LjIwMTggMTg6MjYsIEN5ciwgQXJpYyB3cm90ZToKPj4gVGhhdCBwcmVzZW50YXRpb24gdGltZSBk b2VzbuKAmXQgbmVlZCB0byBjb21lIHRvIGtlcm5lbCBhcyBzdWNoIGFuZCBhY3R1YWxseSBpcyBm aW5lIGFzLWlzIGNvbXBsZXRlbHkgZGVjb3VwbGVkIGZyb20gYWRhcHRpdmUgc3luYy7CoCBBcyBs b25nIGFzIHRoZSB2aWRlbyBwbGF5ZXIgcHJvdmlkZXMgdGhlIG5ldyB0YXJnZXRfZnJhbWVfZHVy YXRpb25fbnMgb24gdGhlIGZsaXAsIHRoZW4gdGhlIGRyaXZlci9IVyB3aWxsIHRhcmdldCB0aGUg Y29ycmVjdCByZWZyZXNoIHJhdGUgdG8gbWF0Y2ggdGhlIHNvdXJjZSBjb250ZW50LsKgIFRoaXMg c2ltcGx5IG1lYW5zIHRoYXQgbW9yZSBvZnRlbiB0aGFuIG5vdCB0aGUgdmlkZW8gcHJlc2VudHMg d2lsbCDCoGFsaWduIHZlcnkgY2xvc2UgdG8gdGhlIG1vbml0b3LigJlzIHJlZnJlc2ggcmF0ZSwg cmVzdWx0aW5nIGluIGEgc21vb3RoIHZpZGVvIGV4cGVyaWVuY2UuwqAgRm9yIGV4YW1wbGUsIGlm IHlvdSBoYXZlIDI0SHogY29udGVudCwgYW5kIGFuIGFkYXB0aXZlIHN5bmMgbW9uaXRvciB3aXRo IGEgcmFuZ2Ugb2YgNDAtNjBIeiwgb25jZSB0aGUgdGFyZ2V0X2ZyYW1lX2R1cmF0aW9uX25zIGlz IHByb3ZpZGVkLCBkcml2ZXIgY2FuIGNvbmZpZ3VyZSB0aGUgbW9uaXRvciB0byBhIGZpeGVkIHJl ZnJlc2ggcmF0ZSBvZiA0OEh6IGNhdXNpbmcgYWxsIHZpZGVvIHByZXNlbnRzIHRvIGJlIGZyYW1l LWRvdWJsZWQgaW4gaGFyZHdhcmUgd2l0aG91dCBmdXJ0aGVyIGFwcGxpY2F0aW9uIGludGVydmVu dGlvbi4KPiAKPiBXaGF0IGFib3V0IG11bHRpLW1vbml0b3IgZGlzcGxheXMsIHdoZXJlIHlvdSB3 YW50IHRvIHBsYXkgYW4gYW5pbWF0aW9uIHRoYXQgc3BhbnMgbXVsdGlwbGUgbW9uaXRvcnMuIFlv dSByZWFsbHkgd2FudCBhbGwgbW9uaXRvcnMgdG8gZmxpcCBhdCB0aGUgc2FtZSB0aW1lLgo+IAoK U3luY2luZyB0d28gbW9uaXRvcnMgaXMgd2hhdCB3ZSBjdXJyZW50bHkgZG8gd2l0aCBvdXIgdGlt aW5nIHN5bmMgZmVhdHVyZSB3aGVyZSB3ZSBkcml2ZSB0d28gbW9uaXRvcnMgZnJvbSB0aGUgc2Ft ZSBjbG9jayBzb3VyY2UgaWYgdGhleSB1c2UgdGhlIHNhbWUgdGltaW5nLiBUaGF0LCBhbG9uZyB3 aXRoIFZTeW5jLCBndWFyYW50ZWVzIGFsbCBtb25pdG9ycyBmbGlwIGF0IHRoZSBzYW1lIHRpbWUu IEknbSBub3Qgc3VyZSBpZiBpdCB3b3JrcyB3aXRoIGFkYXB0aXZlIHN5bmMuCgpBcmUgeW91IHN1 Z2dlc3RpbmcgdG8gdXNlIGFkYXB0aXZlIHN5bmMgdG8gZG8gYW4gaW4tU1cgc3luYyBvZiBtdWx0 aXBsZSBkaXNwbGF5cz8KCj4gSSB1bmRlcnN0YW5kIHdoZXJlIHlvdSdyZSBjb21pbmcgZnJvbSwg YnV0IHRoZSBwZXJzcGVjdGl2ZSBvZiByZWZ1c2luZyBhIHRhcmdldCBwcmVzZW50YXRpb24gdGlt ZSBpcyBhIHJhdGhlciBzZWxmaXNoIG9uZSBvZiAid2UncmUgdGhlIGRpc3BsYXksIHdlJ3JlIHRo ZSBtb3N0IGltcG9ydGFudCwgZXZlcnlib2R5IGVsc2UgaGFzIHRvIGFkanVzdCB0byB1cyIgKGUu Zy4gdG8gZ2V0IHBlcmZlY3Qgc3luYyBiZXR3ZWVuIHZpZGVvIGFuZCBhdWRpbykuIEkgYWRtaXQg SSdtIHBocmFzaW5nIGl0IGluIGEgYml0IG9mIGFuIGV4dHJlbWUgd2F5LCBidXQgcGVyaGFwcyB0 aGlzIHBocmFzaW5nIGhlbHBzIHRvIHNlZSB3aHkgdGhhdCdzIGp1c3Qgbm90IGEgdmVyeSBnb29k IGF0dGl0dWRlIHRvIGhhdmUuCj4gCgpJIHJlYWxseSBkaXNsaWtlIGFyZ3Vpbmcgb24gYW4gZW1v dGlvbmFsIGJhc2lzIGFuZCB3b3VsZCByYXRoZXIgbm90IHVzZSB3b3JkcyBzdWNoIGFzICJzZWxm aXNoIiBpbiB0aGlzIGRpc2N1c3Npb24uIEkgYmVsaWV2ZSBhbGwgb2YgdXMgd2FudCB0byBjb21l IHRvIHRoZSBiZXN0IHBvc3NpYmxlIHNvbHV0aW9uIGJhc2VkIG9uIHRlY2huaWNhbCBtZXJpdC4K Cj4gQWxsIGRldmljZXMgKHdoZXRoZXIgdmlkZW8gb3IgYXVkaW8gb3Igd2hhdGV2ZXIpIHNob3Vs ZCBiZSBhYmxlIHRvIHJlY2VpdmUgYSB0YXJnZXQgcHJlc2VudGF0aW9uIHRpbWUuCj4gCgpJJ20g bm90IHN1cmUgSSB1bmRlcnN0YW5kIHRoZSBmdWxsIGV4dGVudCBvZiB0aGUgcHJvYmxlbSBhcyBJ J20gbm90IHJlYWxseSBmYW1pbGlhciB3aXRoIGhvdyB0aGlzIGlzIGN1cnJlbnRseSBkb25lLCBi dXQgaXNuJ3QgdGhlIHByb2JsZW0gdGhlIHNhbWUgd2l0aG91dCB2YXJpYWJsZSByZWZyZXNoIHJh dGVzIChvciB0YXJnZXRlZCByZWZyZXNoIHJhdGVzKT8gQSBWaWRlbyBBUEkgd291bGQgc3RpbGwg aGF2ZSB0byBzb21laG93IHN5bmNocm9uaXplIGF1ZGlvIGFuZCB2aWRlbyB0byA2MEh6IG9uIG1v c3QgbW9uaXRvcnMgdG9kYXkuIFdoYXQgd291bGQgY2hhbmdlIGlmIHdlIGdhdmUgdXNlciBtb2Rl IHRoZSBhYmlsaXR5IHRvIHN1Z2dlc3Qgd2UgZmxpcCBhdCB2aWRlbyBmcmFtZSByYXRlcyAoMjQv NDhIeik/CgpIYXJyeQoKPiBJZiB0aGUgYXBwbGljYXRpb24gY2FuIG1ha2UgeW91ciBsaWZlIGEg Yml0IGVhc2llciBieSBwcm92aWRpbmcgdGhlIHRhcmdldHRlZCByZWZyZXNoIHJhdGUgYXMgYWRk aXRpb25hbCAqaGludC1vbmx5KiBwYXJhbWV0ZXIgKGxpa2UgaW4geW91ciAyNCBIeiAtLT4gNDgg SHogZG91YmxpbmcgZXhhbXBsZSksIHRoZW4gbWF5YmUgd2Ugc2hvdWxkIGluZGVlZCBjb25zaWRl ciB0aGF0Lgo+IAo+IENoZWVycywKPiBOaWNvbGFpCj4gCj4gCj4+Cj4+Cj4+IEZvciB2aWRlbyBn YW1lcyB3ZSBoYXZlIGEgc2ltaWxhciBzaXR1YXRpb24gd2hlcmUgYSBmcmFtZSBpcyByZW5kZXJl ZCBmb3IgYSBjZXJ0YWluIHdvcmxkIHRpbWUgYW5kIGluIHRoZSBpZGVhbCBjYXNlIHdlIHdvdWxk IGFjdHVhbGx5IGRpc3BsYXkgdGhlIGZyYW1lIGF0IHRoaXMgd29ybGQgdGltZS4KPj4KPj4gVGhh dCBzZWVtcyBsaWtlIGl0IHdvdWxkIGJlIGEgcG9vcmx5IHdyaXR0ZW4gZ2FtZSB0aGF0IGZsaXBz IGxpa2UgdGhhdCwgdW5sZXNzIHRoZXkgYXJlIGV4cGxpY2l0bHkgdHJ5aW5nIHRvIHRocm90dGxl IHRoZSBmcmFtZXJhdGUgZm9yIHNvbWUgcmVhc29uLsKgIFdoZW4gYSBnYW1lIHByZXNlbnRzIGEg Y29tcGxldGVkIGZyYW1lLCB0aGV54oCZZCBsaWtlIHRoYXQgdG8gaGFwcGVuIGFzIHNvb24gYXMg cG9zc2libGUuwqAgVGhpcyBpcyB3aHkgbm9uLVZTWU5DIG1vZGVzIG9mIGZsaXBwaW5nIGV4aXN0 IGFuZCBtYW55IGdhbWVzIGxldmVyYWdlIHRoaXMuwqAgQWRhcHRpdmUgc3luYyBnaXZlcyB5b3Ug dGhlIGxvd2VyIGxhdGVuY3kgb2YgaW1tZWRpYXRlIGZsaXBzIHdpdGhvdXQgdGhlIHRlYXJpbmcg aW1wb3NlZCBieSB1c2luZyBub24tVlNZTkMgZmxpcHBpbmcuCj4+Cj4+Cj4+IEkgbWVhbiB3ZSBo YXZlIHRoZSBndXlzIGZyb20gVmFsdmUgb24gdGhpcyBtYWlsaW5nIGxpc3Qgc28gSSB0aGluayB3 ZSBzaG91bGQganVzdCBnZXQgdGhlIGZlZWRiYWNrIGZyb20gdGhlbSBhbmQgc2VlIHdoYXQgdGhl eSBwcmVmZXIuCj4+Cj4+IFdlIGhhdmUgdGhvdXNhbmRzIG9mIFN0ZWFtIGdhbWVzIG9uIG90aGVy IE9TZXMgdGhhdCB3b3JrIGdyZWF0IGFscmVhZHksIGJ1dCB3ZeKAmWQgY2VydGFpbmx5IGJlIGlu dGVyZXN0ZWQgaW4gYW55IGFkZGl0aW9uYWwgZmVlZGJhY2suwqAgTXkgZ3Vlc3MgaXMgdGhleSBw cmVmZXIgdG8g4oCcZG8gbm90aGluZ+KAnSBhbmQgbGV0IGRyaXZlci9IVyBtYW5hZ2UgaXQsIG90 aGVyd2lzZSB5b3UgZXhlbXB0IGFsbCBleGlzdGluZyBnYW1lcyBmcm9tIHN1cHBvcnRpbmcgYWRh cHRpdmUgc3luYyB3aXRob3V0IGEgcmV3cml0ZSBvciB1cGRhdGUuCj4+Cj4+Cj4+IFJlZ2FyZHMs Cj4+IENocmlzdGlhbi4KPj4KPj4KPj4gwqDCoMKgIC1BcmljCj4+Cj4gCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmFtZC1nZnggbWFpbGluZyBsaXN0CmFt ZC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3Jn L21haWxtYW4vbGlzdGluZm8vYW1kLWdmeAo=