From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: Update front buffer without CPU interaction? Date: Mon, 23 Feb 2015 10:18:41 +0100 Message-ID: <20150223091841.GS24485@phenom.ffwll.local> References: <54E1E5DB.7050303@digitalendoscopy.de> <20150222115242.GQ24485@phenom.ffwll.local> <54EAE360.4040200@digitalendoscopy.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wg0-f54.google.com (mail-wg0-f54.google.com [74.125.82.54]) by gabe.freedesktop.org (Postfix) with ESMTP id C8DB16E11B for ; Mon, 23 Feb 2015 01:17:04 -0800 (PST) Received: by mail-wg0-f54.google.com with SMTP id y19so24191705wgg.13 for ; Mon, 23 Feb 2015 01:17:03 -0800 (PST) Content-Disposition: inline In-Reply-To: <54EAE360.4040200@digitalendoscopy.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Volker Vogelhuber Cc: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gTW9uLCBGZWIgMjMsIDIwMTUgYXQgMDk6MjI6NTZBTSArMDEwMCwgVm9sa2VyIFZvZ2VsaHVi ZXIgd3JvdGU6Cj4gCj4gT24gMjIuMDIuMjAxNSAxMjo1MiwgRGFuaWVsIFZldHRlciB3cm90ZToK PiA+T24gTW9uLCBGZWIgMTYsIDIwMTUgYXQgMDE6NDM6MDdQTSArMDEwMCwgVm9sa2VyIFZvZ2Vs aHViZXIgd3JvdGU6Cj4gPj5JJ20gY3VycmVudGx5IHRyeWluZyB0byBzZXR1cCBhIHJlbmRlcmlu ZyBwaXBlIG9uIGFuIEludGVsIEJheXRyYWlsIEUzODQ1Cj4gPj5jcHUuCj4gPj5JbiBvdXIgcHJv ZHVjdCB3ZSB3YW50IHRvIGhhdmUgYW4gRlBHQSBzdHJlYW1pbmcgdmlkZW8gaW1hZ2VzIHRvIGEK PiA+PnByZWRlZmluZWQgbWVtb3J5IGFyZWEgdXNpbmcgYnVzIG1hc3RlciBkbWEgYW5kIHJlbmRl ciB0aG9zZSBpbWFnZXMgdXNpbmcKPiA+Pk9wZW5HTC4gU28gZmFyIHRoaXMgd29ya3MgaW4gYSBw cmVsaW1pbmFyeSBzdGF0ZS4KPiA+PldlIG5vdyBoYXZlIHRoZSBzZWN1cml0eSByZXF1aXJlbWVu dCB0aGF0IGluIGNhc2UgdGhlIENQVSAoc29mdHdhcmUva2VybmVsCj4gPj5kcml2ZXIpIGNyYXNo ZXMgZm9yIHdoYXQgZXZlciByZWFzb24sIHRoZSBHUFUgZGlzcGxheSBzaWduYWwgc2hvdWxkIHN0 aWxsCj4gPj5vdXRwdXQgYXQgbGVhc3QgdGhlIHZpZGVvIGltYWdlcyAob2J2aW91c2x5IGFueSBh ZGRpdGlvbmFsIHJlbmRlciBzdHVmZiB3aWxsCj4gPj5ub3QgYmUgYXZhaWxhYmxlIGFueW1vcmUp LiBNeSBxdWVzdGlvbiBpcyBub3csIHdvdWxkIGl0IGJlIHBvc3NpYmxlIHRvIGdldAo+ID4+dGhl IHBoeXNpY2FsIGFkZHJlc3Mgb2YgdGhlIERSTSBmcm9udCBidWZmZXIsIHNvIHRoYXQgSSBjYW4g cHJvdmlkZSB0aGlzCj4gPj5hZGRyZXNzIHRvIHRoZSBGUEdBIChjb25uZWN0ZWQgdmlhIFBDSWUp IGFuZCBpcyBpdCBwb3NzaWJsZSB0byBoYXZlIHRoZSBHUFUKPiA+PnN0aWxsIHJlYWRpbmcgdGhl IGxhc3QgZnJvbnQgYnVmZmVyIGZvciB0aGUgZGlzcGxheSBvdXRwdXQgd2hpbGUgdGhlIEZQR0EK PiA+PndyaXRlcyB0byB0aGF0IGFyZWEuIFNvIEkgd291bGQgdGhpbmsgdGhhdCB0aGUgR1BVIGhh cyBzb21lIGtpbmQgb2YgRE1BCj4gPj5lbmdpbmUgcnVubmluZywgdGhhdCBjb250aW51b3VzbHkg cmVhZGluZyB0aGUgbGFzdCBmcm9udCBidWZmZXIgdW50aWwKPiA+PnN3aXRjaGVkIHRvIGFub3Ro ZXIgYnVmZmVyIGJ5IHRoZSBDUFUuIFNvIGV2ZW4gaWYgdGhlIENQVSBkb2VzIG5vdCBjb250cm9s Cj4gPj50aGUgR1BVIGFueW1vcmUsIGl0IG1pZ2h0IGJlIHBvc3NpYmxlIHRvIGhhdmUgdGhlIGZy b250IGJ1ZmZlciB1cGRhdGVkIGJ5Cj4gPj50aGUgRlBHQSBkaXJlY3RseS4gT2YgY291cnNlIHRo ZXJlIHdpbGwgYmUgdGVhcmluZyBhcnRlZmFjdHMgYXMgbm8gVlNZTkMKPiA+PndpbGwgYmUgYXZh aWxhYmxlIGJ1dCB0aGF0IHdvdWxkbid0IGJlIGFuIGlzc3VlIHNvIGZhci4KPiA+SnVzdCBzaGFy ZSBidWZmZXJzIGJldHdlZW4geW91ciBmcGdhIGRyaXZlciBhbmQgdGhlIGk5MTUgZHJpdmVyIHVz aW5nCj4gPnByaW1lL2RtYS1idWYgYW5kIGJlZm9yZSBlYWNoIHBhZ2VmbGlwIHRlbGwgeW91ciBm cGdhIGRyaXZlciB0byByZW5kZXIKPiA+aW50byB0aGUgbmV3IGJ1ZmZlci4gV2UgZG9uJ3QgaGF2 ZSBhbnkgaW50ZXJmYWNlcyB0byB0ZWxsIHVzZXJzcGFjZQo+ID5waHlzaWNhbCBhZGRyZXNzZXMg b2YgYW55dGhpbmcsIGFuZCB0aGF0J3MgZmFpcmx5IGludGVudGlvbmFsIC0gdGhlIGtlcm5lbAo+ ID5pcyBhbmQgbXVzdCBiZSBpbiBjb250cm9sIG9mIG1lbW9yeSBtYW5hZ2VtZW50Lgo+ID4tRGFu aWVsCj4gVGhhbmtzIGZvciB0aGUgcmVwbHkuIEkgYWxyZWFkeSBzdHVtYmxlZCBhY3Jvc3MgdGhl IFBSSU1FIHdheSB0byBnZXQgYWNjZXNzCj4gdG8gdGhlIGJ1ZmZlciB3aXRoaW4gdGhlIHNvdXJj ZSBjb2RlIGJ1dCBpdCB3YXNuJ3QgdG90YWxseSBjbGVhciB0byBtZSwgaG93Cj4gb25lIHdvdWxk IGFjY2VzcyB0aGlzIEFQSS4KPiBJIGd1ZXNzIG9uZSBoYXZlIHRvIGNhbGwgZHJtUHJpbWVIYW5k bGVUb0ZEIHdpdGggdGhlIC9kZXYvZHJpL2NhcmQwIGZpbGUKPiBkZXNjcmlwdG9yLCBhIGdlbSBo YW5kbGUgKHByb2JhYmx5IHJldHJpZXZlZCB1c2luZyBnYm1fYm9fZ2V0X2hhbmRsZSksCj4gRFJN X0NMT0VYRUMgYW5kIHNvbWUgb3V0cHV0IHZhcmlhYmxlLgo+IFRoZSBQcmltZSBmaWxlIGRlc2Ny aXB0b3IgcmV0dXJuZWQsIHNob3VsZCBiZSB1c2FibGUgd2l0aCB0aGUgZG1hLWJ1ZiBBUEksCj4g cmlnaHQ/IFNvIEkgY2FuIGNhbGwgZG1hX2J1Zl9nZXQocHJpbWVfZmQpIHdpdGhpbiB0aGUgRlBH QSBkcml2ZXIgYW5kIHBhc3MKPiB0aGUgc2dfdGFibGUgSSBnZXQgZnJvbSBkbWFfYnVmX21hcF9h dHRhY2htZW50IHRvIHRoZSBETUEgZW5naW5lIHdpdGhpbiB0aGUKPiBGUEdBLgo+IERvZXMgdGhp cyBjb25jZXB0IHdvcmsgaW4gdGhlb3J5PyBPciBkaWQgSSBtaXNzIHNvbWV0aGluZz8KCkl0IHNo b3VsZCB3b3JrIGV2ZW4gaW4gcHJhY3RpY2UgOy0pIEFuZCB5ZWFoIGRlc2NyaXB0aW9uIG9mIHRo ZSBkYW5jZQpsb29rcyBjb21wbGV0ZS4KCkNoZWVycywgRGFuaWVsCi0tIApEYW5pZWwgVmV0dGVy ClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlvbgorNDEgKDApIDc5IDM2NSA1NyA0 OCAtIGh0dHA6Ly9ibG9nLmZmd2xsLmNoCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZy ZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGlu Zm8vZHJpLWRldmVsCg==