From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ed1-x543.google.com (mail-ed1-x543.google.com [IPv6:2a00:1450:4864:20::543]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1CC8E6E54E for ; Thu, 4 Apr 2019 08:17:11 +0000 (UTC) Received: by mail-ed1-x543.google.com with SMTP id m16so1310457edd.12 for ; Thu, 04 Apr 2019 01:17:11 -0700 (PDT) Date: Thu, 4 Apr 2019 10:17:06 +0200 From: Daniel Vetter Message-ID: <20190404081706.GS2665@phenom.ffwll.local> References: <20190404070537.15154-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190404070537.15154-1-chris@chris-wilson.co.uk> Subject: Re: [igt-dev] [PATCH i-g-t] prime_vgem: Downgrade the severity of a single missed vblank on flipping List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: Chris Wilson Cc: igt-dev@lists.freedesktop.org List-ID: T24gVGh1LCBBcHIgMDQsIDIwMTkgYXQgMDg6MDU6MzdBTSArMDEwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IE5vdCBkaXNwbGF5aW5nIHRoZSBmbGlwIG9uIHRoZSBuZXh0IHZibGFuayBpcyBiYWQs IGJ1dCBub3QgdGhlIGVuZCBvZgo+IHRoZSB3b3JsZCAtLSBzbyBsb25nIGFzIHRoYXQgaXMgb25s eSBhIHRlbXBvcmFyeSBnbGl0Y2guIEdpdmUgdGhlIHZibGFuawo+IGEgZmV3IG1vcmUgZnJhbWVz IHRvIGNvbXBsZXRlLCBhbmQgd2FybiBpbnN0ZWFkIG9mIGZhaWxpbmcgaWYgaXQgdGFrZXMKPiBt b3JlIHRoYW4gb25lIHZibGFuayBpbnRlcnZhbCB0byBmbGlwLgo+IAo+IFNpZ25lZC1vZmYtYnk6 IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgo+IC0tLQo+ICB0ZXN0cy9w cmltZV92Z2VtLmMgfCAyMiArKysrKysrKysrKysrKystLS0tLS0tCj4gIDEgZmlsZSBjaGFuZ2Vk LCAxNSBpbnNlcnRpb25zKCspLCA3IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS90ZXN0 cy9wcmltZV92Z2VtLmMgYi90ZXN0cy9wcmltZV92Z2VtLmMKPiBpbmRleCA4NWEyN2I2OWYuLjhj MGRkNmM3YSAxMDA2NDQKPiAtLS0gYS90ZXN0cy9wcmltZV92Z2VtLmMKPiArKysgYi90ZXN0cy9w cmltZV92Z2VtLmMKPiBAQCAtNzEzLDE1ICs3MTMsMjMgQEAgc3RhdGljIHZvaWQgZmxpcF90b192 Z2VtKGludCBpOTE1LCBpbnQgdmdlbSwKPiAgCj4gIAkvKiBBbmQgdGhlbiB0aGUgZmxpcCBpcyBj b21wbGV0ZWQgYXMgc29vbiBhcyBpdCBpcyByZWFkeSAqLwo+ICAJaWYgKCFoYW5nKSB7Cj4gLQkJ dW5pb24gZHJtX3dhaXRfdmJsYW5rIHdhaXQ7Cj4gKwkJdW5zaWduZWQgbG9uZyBtaXNzOwo+ICAK PiAtCQltZW1zZXQoJndhaXQsIDAsIHNpemVvZih3YWl0KSk7Cj4gLQkJd2FpdC5yZXF1ZXN0LnR5 cGUgPSBEUk1fVkJMQU5LX1JFTEFUSVZFIHwgcGlwZV9zZWxlY3QoMCk7Cj4gLQkJd2FpdC5yZXF1 ZXN0LnNlcXVlbmNlID0gMTA7Cj4gLQkJZG9fb3JfZGllKGRybUlvY3RsKGk5MTUsIERSTV9JT0NU TF9XQUlUX1ZCTEFOSywgJndhaXQpKTsKPiAtCj4gLQkJdmdlbV9mZW5jZV9zaWduYWwodmdlbSwg ZmVuY2UpOwo+ICsJCS8qIFNpZ25hbCBmZW5jZSBhdCB0aGUgc3RhcnQgb2YgdGhlbiBuZXh0IHZi bGFuayAqLwo+ICAJCWdldF92YmxhbmsoaTkxNSwgMCwgRFJNX1ZCTEFOS19ORVhUT05NSVNTKTsK PiArCQl2Z2VtX2ZlbmNlX3NpZ25hbCh2Z2VtLCBmZW5jZSk7Cj4gKwo+ICsJCW1pc3MgPSAwOwo+ ICsJCWlndF91bnRpbF90aW1lb3V0KDUpIHsKPiArCQkJZ2V0X3ZibGFuayhpOTE1LCAwLCBEUk1f VkJMQU5LX05FWFRPTk1JU1MpOwo+ICsJCQlpZiAocG9sbCgmcGZkLCAxLCAwKSkKPiArCQkJCWJy ZWFrOwo+ICsJCQltaXNzKys7Cj4gKwkJfQo+ICsJCWlmIChtaXNzKSB7CgpJIHRoaW5rIG1pc3Mg PiAxIHdvdWxkIGJlIGNvcnJlY3QgaGVyZSwgc2luY2Ugb25jZSB3ZSBzaWduYWwgdGhlIGtlcm5l bApzaG91bGQgYmUgYWJsZSB0byByZWFsaXplIHRoYXQsIHF1ZXVlIHRoZSBmbGlwIGFuZCBleGVj dXRlIGl0IHdpdGhpbiAxCnZibGFuay4gMTZtcyBkZWxheSB3b3VsZCBiZSByYXRoZXIgYmFkLgoK T3RvaCB3ZSBjYW4ndCBleHBlY3QgdGhhdCBpdCdsbCBhbHdheXMgaXNzdWUgaXQgcmlnaHQgYXdh eSwgYmVjYXVzZQp0aGVyZSdzIHNvbWUgd29ya2VyIGFuZCBjb2RlIGludm9sdmVkIHBsdXMgb3Ro ZXIgZGVsYXlzLCBzbyBubyBtYXR0ZXIKd2V0aGVyIHdlIHNhbXBsZSB0aGUgdmJsYW5rIGNvdW50 ZXIgYmVmb3JlIG9yIGFmdGVyIHdlIHNpZ25hbCB0aGUgZmVuY2UsCndlIG1pZ2h0IG1pc3MgdGhl IHZlcnkgbmV4dCB2YmxhbmsuIFdhcm5pbmcgYWJvdXQgYSByYWNlIHdlIGV4cGVjdCB0bwpvY2Nh c2lvbmFsbHkgaGFwcGVuIGFuZCBjYW4ndCBwcmV2ZW50IGRvZXNuJ3Qgc291bmQgZ29vZC4KCldp dGggdGhlIG1pc3MgPiAxOgoKUmV2aWV3ZWQtYnk6IERhbmllbCBWZXR0ZXIgPGRhbmllbC52ZXR0 ZXJAZmZ3bGwuY2g+CgpBbHNvLCBpcyB0aGVyZSBzb21lIENJIGJ1Z3ppbGxhIGZvciB0aGlzPyBX b3VsZCBiZSBnb29kIHRvIHJlZmVyZW5jZSB0aGF0Cm9uZS4KLURhbmllbAoKPiArCQkJaWd0X3dh cm4oIk1pc3NlZCAlbHUgdmJsYW5rcyBhZnRlciBzaWduYWxpbmcgYmVmb3JlIGZsaXAgd2FzIGNv bXBsZXRlZFxuIiwKPiArCQkJCSBtaXNzKTsKPiArCQl9Cj4gIAkJaWd0X2Fzc2VydF9lcShwb2xs KCZwZmQsIDEsIDApLCAxKTsKPiAgCX0KPiAgCj4gLS0gCj4gMi4yMC4xCj4gCj4gX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPiBpZ3QtZGV2IG1haWxpbmcg bGlzdAo+IGlndC1kZXZAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4gaHR0cHM6Ly9saXN0cy5mcmVl ZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pZ3QtZGV2CgotLSAKRGFuaWVsIFZldHRlcgpT b2Z0d2FyZSBFbmdpbmVlciwgSW50ZWwgQ29ycG9yYXRpb24KaHR0cDovL2Jsb2cuZmZ3bGwuY2gK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KaWd0LWRldiBt YWlsaW5nIGxpc3QKaWd0LWRldkBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5m cmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pZ3QtZGV2