From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sean Paul Subject: Re: [PATCH hwc v1] [RFC] drm_hwcomposer: Flatten composition using writeback connector Date: Tue, 20 Mar 2018 09:43:53 -0400 Message-ID: <20180320134353.GN223881@art_vandelay> References: <1520958080-9280-1-git-send-email-alexandru-cosmin.gheorghe@arm.com> <20180319180354.GL223881@art_vandelay> <20180320112639.GA23081@e114479-lin.cambridge.arm.com> <20180320132850.GM223881@art_vandelay> <20180320133553.GA29376@e114479-lin.cambridge.arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-yw0-x244.google.com (mail-yw0-x244.google.com [IPv6:2607:f8b0:4002:c05::244]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9CD406E3A2 for ; Tue, 20 Mar 2018 13:43:55 +0000 (UTC) Received: by mail-yw0-x244.google.com with SMTP id c20so518098ywa.2 for ; Tue, 20 Mar 2018 06:43:55 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20180320133553.GA29376@e114479-lin.cambridge.arm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Alexandru-Cosmin Gheorghe Cc: liviu.dudau@arm.com, nd@arm.com, dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gVHVlLCBNYXIgMjAsIDIwMTggYXQgMDE6MzU6NTNQTSArMDAwMCwgQWxleGFuZHJ1LUNvc21p biBHaGVvcmdoZSB3cm90ZToKPiBIaSwKPiAKPiBPbiBUdWUsIE1hciAyMCwgMjAxOCBhdCAwOToy ODo1MEFNIC0wNDAwLCBTZWFuIFBhdWwgd3JvdGU6Cj4gPiBPbiBUdWUsIE1hciAyMCwgMjAxOCBh dCAxMToyNjozOUFNICswMDAwLCBBbGV4YW5kcnUtQ29zbWluIEdoZW9yZ2hlIHdyb3RlOgo+ID4g PiBIaSBTZWFuLAo+ID4gPiAKPiA+ID4gVGhhbmsgeW91IGZvciB0aGUgZmVlZGJhY2suCj4gPiA+ IEkgd2lsbCBjb21lYmFjayB3aXRoIHYyLCBsYXRlciBvbi4KPiA+ID4gCj4gPiA+IE9uIE1vbiwg TWFyIDE5LCAyMDE4IGF0IDAyOjAzOjU0UE0gLTA0MDAsIFNlYW4gUGF1bCB3cm90ZToKPiA+ID4g PiBPbiBUdWUsIE1hciAxMywgMjAxOCBhdCAwNDoyMToyMFBNICswMDAwLCBBbGV4YW5kcnUgR2hl b3JnaGUgd3JvdGU6Cj4gPiA+ID4gPiBUaGlzIHBhdGNoc2V0IHRyaWVzIHRvIGFkZCBzdXBwb3J0 IGZvciB1c2luZyB3cml0ZWJhY2sgY29ubmVjdG9yIHRvCj4gPiA+ID4gPiBmbGF0dGVuIGEgc2Nl bmUgd2hlbiBpdCBkb2Vzbid0IGNoYW5nZSBmb3IgYSB3aGlsZS4gVGhpcyBpZGVhIGhhZAo+ID4g PiA+ID4gYmVlbiBmbG9hdGVkIGFyb3VuZCBvbiBJUkMgaGVyZSBbMV0gYW5kIGhlcmUgWzJdLgo+ ID4gPiA+ID4gCj4gPiA+ID4gPiBEZXZlbG9wZWQgb24gdG9wIG9mIHRoZSBsYXRlc3Qgd3JpdGVi YWNrIHNlcmllcywgc2VudCBieSBMaXZpdSBoZXJlCj4gPiA+ID4gPiBbM10uCj4gPiA+ID4gPiAK PiA+ID4gPiA+IFByb2JhYmx5IHRoZSBwYXRjaCBzaG91bGQvY291bGQgYmUgYnJva2VuIGluIG1v cmUgcGF0Y2hlcywgYnV0IHNpbmNlIEkKPiA+ID4gPiA+IHdhbnQgdG8gcHV0IHRoaXMgb3V0IHRo ZXJlIHRvIGdldCBmZWVkYmFjaywgSSBrZXB0IHRoZW0gYXMgYSBzaW5nbGUKPiA+ID4gPiA+IHBh dGNoIGZvciBub3cuCj4gPiA+ID4gCj4gPiA+ID4gVGhhbmsgeW91IGZvciB5b3VyIHBhdGNoLCBp dCdzIGxvb2tpbmcgZ29vZC4gRmVlbCBmcmVlIHRvIHN1Ym1pdCB0aGUgdjIgaW4KPiA+ID4gPiBt dWx0aXBsZSBwYXRjaGVzLiBBbHNvIG5vdGUgdGhhdCB3ZSd2ZSBtaWdyYXRlZCB0byBnaXRsYWIs IHRoZSBuZXcgdHJlZSBpcwo+ID4gPiA+IGxvY2F0ZWQgaGVyZToKPiA+ID4gPiAKPiA+ID4gPiBo dHRwczovL2dpdGxhYi5mcmVlZGVza3RvcC5vcmcvZHJtLWh3Y29tcG9zZXIvZHJtLWh3Y29tcG9z ZXIKPiA+ID4gCj4gPiA+IFRoaXMgc2VlbXMgdG8gYmUgYmVoaW5kCj4gPiA+IGh0dHBzOi8vYW5v bmdpdC5mcmVlZGVza3RvcC5vcmcvZ2l0L2RybV9od2NvbXBvc2VyLmdpdC4KPiA+ID4gSXMgdGhp cyBsb2NhdGlvbiBkZXByZWNhdGVkIG9yIGRvZXMgaXQgc2VydmUgb3RoZXIgcHVycG9zZXMuCj4g PiA+IAo+ID4gCj4gPiBBaCwgdGhhbmtzIGZvciBjYXRjaGluZyB0aGlzLiBJdCdzIGEgbWlncmF0 aW9uIGdsaXRjaCwgSSd2ZSBtYWRlIGl0IHdob2xlCj4gPiBhZ2Fpbi4KPiA+IAo+ID4gPHNuaXAg Lz4KPiA+IAo+ID4gPiA+ID4gICNpbmNsdWRlICJkcm1kaXNwbGF5Y29tcG9zaXRvci5oIgo+ID4g PiA+ID4gCj4gPiA+ID4gPiAgI2luY2x1ZGUgPHB0aHJlYWQuaD4KPiA+ID4gPiA+IEBAIC0zNiw5 ICszNSwyNCBAQAo+ID4gPiA+ID4gICNpbmNsdWRlICJkcm1wbGFuZS5oIgo+ID4gPiA+ID4gICNp bmNsdWRlICJkcm1yZXNvdXJjZXMuaCIKPiA+ID4gPiA+ICAjaW5jbHVkZSAiZ2x3b3JrZXIuaCIK PiA+ID4gPiA+ICtzdGF0aWMgY29uc3QgdWludDMyX3Qga1dhaXRXcml0ZWJhY2tGZW5jZSA9IDEw MDsgLy9tcwo+ID4gPiA+ID4gCj4gPiA+ID4gPiAgbmFtZXNwYWNlIGFuZHJvaWQgewo+ID4gPiA+ ID4gCj4gPiA+ID4gPiArY2xhc3MgQ29tcG9zaXRvclZzeW5jQ2FsbGJhY2sgOiBwdWJsaWMgVnN5 bmNDYWxsYmFjayB7Cj4gPiA+ID4gPiArIHB1YmxpYzoKPiA+ID4gPiA+ICsgIENvbXBvc2l0b3JW c3luY0NhbGxiYWNrKERybURpc3BsYXlDb21wb3NpdG9yICpjb21wb3NpdG9yKQo+ID4gPiA+ID4g KyAgICAgIDpjb21wb3NpdG9yXyhjb21wb3NpdG9yKSB7Cj4gPiA+ID4gPiArICB9Cj4gPiA+ID4g PiArCj4gPiA+ID4gPiArICB2b2lkIENhbGxiYWNrKGludCBkaXNwbGF5LCBpbnQ2NF90IHRpbWVz dGFtcCkgewo+ID4gPiA+ID4gKyAgICBjb21wb3NpdG9yXy0+VnN5bmMoZGlzcGxheSwgdGltZXN0 YW1wKTsKPiA+ID4gPiA+ICsgIH0KPiA+ID4gPiA+ICsKPiA+ID4gPiA+ICsgcHJpdmF0ZToKPiA+ ID4gPiA+ICsgIERybURpc3BsYXlDb21wb3NpdG9yICpjb21wb3NpdG9yXzsKPiA+ID4gPiA+ICt9 Owo+ID4gPiA+ID4gKwo+ID4gPiA+IAo+ID4gPiA+IFRoZSBHTENvbXBvc2l0b3IgYWxyZWFkeSBo YXMgZmxhdHRlbmluZywgc28gd2Ugc2hvdWxkIHRpZSBpbnRvIHRoYXQuIEkgYXNzdW1lCj4gPiA+ ID4gd3JpdGViYWNrIGlzIGdvaW5nIHRvIGJlIG1vcmUgZWZmaWNpZW50IHRoYW4gdXNpbmcgR1BV IChnaXZlbiB0aGF0IHRoZSBHUFUgaXMKPiA+ID4gPiBwcm9iYWJseSB0dXJuZWQgb2ZmIGluIHRo ZXNlIHNjZW5hcmlvcyksIHNvIHlvdSdyZSBwcm9iYWJseSBzYWZlIHRvIHVzZQo+ID4gPiA+IHdy aXRlYmFjayB3aGVuIGF2YWlsYWJsZSBhbmQgZmFsbCBiYWNrIHRvIEdMIGlmIGl0J3Mgbm90Lgo+ ID4gPiA+IAo+ID4gPiA+IAo+ID4gPiAKPiA+ID4gQXMgZmFyIGFzIEkgdW5kZXJzdG9vZCwgdGhp cyB3YXMgZG9uZSBieSB0aGUgZHJtY29tcG9zaXRvcndvcmtlci5jcHAKPiA+ID4gYnkgY2FsbGlu ZyBTcXVhc2hBbGwgYnV0IHRoYXQncyByZW1vdmVkIGZyb20gYnVpbGQgbm93LiBHTENvbXBvc2l0 b3IKPiA+ID4gc2VlbXMgdG8gZG8gY29tcG9zaXRpbmcgb25seSB3aGVuIHRoZXJlIGFyZSBub3Qg ZW5vdWdoIG92ZXJsYXlzIG9yIAo+ID4gPiBhdG9taWMgY2hlY2sgZmFpbHMuCj4gPiA+IAo+ID4g PiBBbSBJIG1pc3Npbmcgc29tZXRoaW5nID8gCj4gPiA+IElzIGl0IHN0aWxsIGRvaW5nIGZsYXR0 ZW5pbmcgd2hlbiB0aGVuIHNjZW5lIGRvZXMgbm90IGNoYW5nZSA/Cj4gPiAKPiA+IGh0dHBzOi8v Z2l0bGFiLmZyZWVkZXNrdG9wLm9yZy9kcm0taHdjb21wb3Nlci9kcm0taHdjb21wb3Nlci9ibG9i L21hc3Rlci9kcm1jb21wb3NpdG9yd29ya2VyLmNwcCNMNjIKPiA+IAo+ID4gSWYgdGhlIHNjZW5l IGRvZXNuJ3QgY2hhbmdlLCBldmVyeXRoaW5nIGlzIHNxdWFzaGVkLgo+IAo+IFllYWgsIGJ1dCB0 aGF0IGZpbGUgaXQncyBub3QgZXZlbiBidWlsdCwgc2VlIFsxXS4KPiBTbywgSSBraW5kIG9mIGFz c3VtZWQgc29tZW9uZSBoYWQgYSByZWFzb24gb2YgZGVsZXRpbmcgaXQuIAo+IEFueSBpZGVhIGFi b3V0IHRoYXQ/CgpIYSwgV1RGISBZZWFoLCBndWVzcyB0aGF0J3MgYSByZWdyZXNzaW9uLiAKCi9t ZSB3b25kZXJzIHdoZXRoZXIgd2Ugc2hvdWxkIGp1c3QgcmlwIG91dCB0aGUgR0xDb21wb3NpdG9y IHNpbmNlIG5vIG9uZSBzZWVtcwp0byBjYXJlIGFib3V0IGl0LgoKSSdsbCBjaXJjbGUgYmFjayBv biB0aGUgcmV2aWV3IGFuZCB0YWtlIGEgbG9vayBhdCBob3cgeW91J3JlIGRvaW5nIHRoZQppbmFj dGl2aXR5IHN0dWZmLgoKU2VhbgoKPiAKPiBbMV0gaHR0cHM6Ly9naXRsYWIuZnJlZWRlc2t0b3Au b3JnL2RybS1od2NvbXBvc2VyL2RybS1od2NvbXBvc2VyL2Jsb2IvbWFzdGVyL0FuZHJvaWQubWsj TDUzCj4gCj4gPiAKPiA+IDxzbmlwIC8+Cj4gPiAKPiA+ID4gPiA+IGRpZmYgLS1naXQgYS9kcm1y ZXNvdXJjZXMuY3BwIGIvZHJtcmVzb3VyY2VzLmNwcAo+ID4gPiA+ID4gaW5kZXggMzJkZDM3Ni4u ODgwY2VmMiAxMDA2NDQKPiA+ID4gPiA+IC0tLSBhL2RybXJlc291cmNlcy5jcHAKPiA+ID4gPiA+ ICsrKyBiL2RybXJlc291cmNlcy5jcHAKPiA+ID4gPiA+IEBAIC0zMyw2ICszMyw4IEBACj4gPiA+ ID4gPiAgI2luY2x1ZGUgPGN1dGlscy9sb2cuaD4KPiA+ID4gPiA+ICAjaW5jbHVkZSA8Y3V0aWxz L3Byb3BlcnRpZXMuaD4KPiA+ID4gPiA+IAo+ID4gPiA+ID4gKyNkZWZpbmUgRFJNX0NMSUVOVF9D QVBfV1JJVEVCQUNLX0NPTk5FQ1RPUlMgICAgNAo+ID4gPiA+ID4gKwo+ID4gPiA+IAo+ID4gPiA+ IFByZXN1bWFibHkgdGhpcyBzaG91bGQgY29tZSBmcm9tIGxpYmRybSBoZWFkZXJzPwo+ID4gPiAK PiA+ID4gWWVzIGl0IHdpbGwsIHRoaXMgd2FzIGp1c3QgYSBxdWljayBmaXggdG8gYmUgYWJsZSB0 byBjb21waWxlIGFnYWluc3QKPiA+ID4gb2xkZXIgbGliZHJtLgo+ID4gPiAKPiA+ID4gQnR3LCB0 aGlzIHdvdWxkIG1ha2UgZHJtX2h3Y29tcG9zZXIgY29tcGlsYWJsZSBvbmx5IHdpdGggbmV3ZXIg bGliZHJtCj4gPiA+IHZlcnNpb24sIGJ1dCBJIHN1cHBvc2UgdGhhdCdzIGFjY2VwdGFibGUuCj4g PiAKPiA+IFlvdSBjYW4gdXNlIHByZXByb2Nlc3NvciBjaGVja3MgdG8gZGV0ZXJtaW5lIGlmCj4g PiBEUk1fQ0xJRU5UX0NBUF9XUklURUJBQ0tfQ09OTkVDVE9SUyBpcyBkZWZpbmVkLCBhbmQgZGlz YWJsZSB0aGUgZnVuY3Rpb25hbGl0eSBpZgo+ID4gaXQncyBub3QuCj4gPiAKPiA+ID4gCj4gPiA+ ID4gCj4gPiA+ID4gPiAgbmFtZXNwYWNlIGFuZHJvaWQgewo+ID4gPiA+ID4gCj4gPiA+ID4gPiAg RHJtUmVzb3VyY2VzOjpEcm1SZXNvdXJjZXMoKSA6IGV2ZW50X2xpc3RlbmVyXyh0aGlzKSB7Cj4g PiA+ID4gPiBAQCAtNjUsNiArNjcsMTEgQEAgaW50IERybVJlc291cmNlczo6SW5pdCgpIHsKPiA+ ID4gPiA+ICAgICAgcmV0dXJuIHJldDsKPiA+ID4gPiA+ICAgIH0KPiA+ID4gPiA+IAo+ID4gPiA+ ID4gKyAgcmV0ID0gZHJtU2V0Q2xpZW50Q2FwKGZkKCksIERSTV9DTElFTlRfQ0FQX1dSSVRFQkFD S19DT05ORUNUT1JTLCAxKTsKPiA+ID4gPiA+ICsgIGlmIChyZXQpIHsKPiA+ID4gPiA+ICsgICAg QUxPR0koIkZhaWxlZCB0byBzZXQgd3JpdGViYWNrIGNhcCAlZCIsIHJldCk7Cj4gPiA+ID4gPiAr ICAgIHJldCA9IDA7Cj4gPiA+ID4gPiArICB9Cj4gPiA+ID4gPiAgICBkcm1Nb2RlUmVzUHRyIHJl cyA9IGRybU1vZGVHZXRSZXNvdXJjZXMoZmQoKSk7Cj4gPiA+ID4gPiAgICBpZiAoIXJlcykgewo+ ID4gPiA+ID4gICAgICBBTE9HRSgiRmFpbGVkIHRvIGdldCBEcm1SZXNvdXJjZXMgcmVzb3VyY2Vz Iik7Cj4gPiA+ID4gPiBAQCAtNzcsNiArODQsNyBAQCBpbnQgRHJtUmVzb3VyY2VzOjpJbml0KCkg ewo+ID4gPiA+ID4gICAgICAgIHN0ZDo6cGFpcjx1aW50MzJfdCwgdWludDMyX3Q+KHJlcy0+bWF4 X3dpZHRoLCByZXMtPm1heF9oZWlnaHQpOwo+ID4gPiA+ID4gCj4gPiA+ID4gPiAgICBib29sIGZv dW5kX3ByaW1hcnkgPSBmYWxzZTsKPiA+ID4gPiA+ICsgIGludCBwcmltYXJ5X2luZGV4ID0gMDsK PiA+ID4gPiA+ICAgIGludCBkaXNwbGF5X251bSA9IDE7Cj4gPiA+ID4gPiAKPiA+ID4gPiA+ICAg IGZvciAoaW50IGkgPSAwOyAhcmV0ICYmIGkgPCByZXMtPmNvdW50X2NydGNzOyArK2kpIHsKPiA+ ID4gPiA+IEBAIC0xNjIsMTggKzE3MCwyMiBAQCBpbnQgRHJtUmVzb3VyY2VzOjpJbml0KCkgewo+ ID4gPiA+ID4gICAgICBpZiAoY29ubi0+aW50ZXJuYWwoKSAmJiAhZm91bmRfcHJpbWFyeSkgewo+ ID4gPiA+ID4gICAgICAgIGNvbm4tPnNldF9kaXNwbGF5KDApOwo+ID4gPiA+ID4gICAgICAgIGZv dW5kX3ByaW1hcnkgPSB0cnVlOwo+ID4gPiA+ID4gLSAgICB9IGVsc2Ugewo+ID4gPiA+ID4gKyAg ICB9IGVsc2UgaWYgKGNvbm4tPmV4dGVybmFsKCkpIHsKPiA+ID4gPiA+ICsgICAgICBpZiAoIWZv dW5kX3ByaW1hcnkpIHByaW1hcnlfaW5kZXgrKzsKPiA+ID4gPiAKPiA+ID4gPiBUaGlzIGlzIGFn YWluc3Qgc3R5bGUgZ3VpZGUgKGFuZCBzYW1lIGJlbG93KS4KPiA+ID4gCj4gPiA+IEkgc3VwcG9z ZSB0aGF0J3Mgd2hhdCBoYXBwZW5zIHdoZW4geW91IHNraXAgc29tZSBzdGVwcyBmcm9tIAo+ID4g PiAiU3VibWl0dGluZyBwYXRjaGVzIiwgY2xhbmcgd2lsbCBjYXRjaCB0aGlzIG5leHQgdGltZS4K PiA+ID4gCj4gPiAKPiA+IEkgbWlnaHQgbG9vayBpbnRvIGFkZGluZyBhIGhvb2sgdG8gZ2l0bGFi IHRvIGF1dG9tYXRpY2FsbHkgcnVuIHRoaXMsIHRpbWUKPiA+IHBlcm1pdHRpbmcuCj4gPiAKPiA+ IFNlYW4KPiA+IAo+ID4gPHNuaXAgLz4KPiA+IC0tIAo+ID4gU2VhbiBQYXVsLCBTb2Z0d2FyZSBF bmdpbmVlciwgR29vZ2xlIC8gQ2hyb21pdW0gT1MKPiAKPiAtLSAKPiBDaGVlcnMsCj4gQWxleCBH CgotLSAKU2VhbiBQYXVsLCBTb2Z0d2FyZSBFbmdpbmVlciwgR29vZ2xlIC8gQ2hyb21pdW0gT1MK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KZHJpLWRldmVs IG1haWxpbmcgbGlzdApkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlz dHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vZHJpLWRldmVsCg==