From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] drm/i915: fix fdi related fifo underruns on hsw Date: Mon, 30 Nov 2015 14:59:04 +0100 Message-ID: <20151130135904.GQ17050@phenom.ffwll.local> References: <1448705139-12534-1-git-send-email-daniel.vetter@ffwll.ch> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm0-f44.google.com (mail-wm0-f44.google.com [74.125.82.44]) by gabe.freedesktop.org (Postfix) with ESMTPS id E1DF489CA1 for ; Mon, 30 Nov 2015 05:59:09 -0800 (PST) Received: by wmec201 with SMTP id c201so139315013wme.1 for ; Mon, 30 Nov 2015 05:59:07 -0800 (PST) Content-Disposition: inline In-Reply-To: <1448705139-12534-1-git-send-email-daniel.vetter@ffwll.ch> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Intel Graphics Development Cc: Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org T24gU2F0LCBOb3YgMjgsIDIwMTUgYXQgMTE6MDU6MzlBTSArMDEwMCwgRGFuaWVsIFZldHRlciB3 cm90ZToKPiBTaW1pbGFyIHRvCj4gCj4gY29tbWl0IDM3Y2E4ZDRjY2Q5ODYwZGYwNzQ3YWEyZWEy ODFhM2M5YzRiZjg4MjYKPiBBdXRob3I6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBs aW51eC5pbnRlbC5jb20+Cj4gRGF0ZTogICBGcmkgT2N0IDMwIDE5OjIwOjI3IDIwMTUgKzAyMDAK PiAKPiAgICAgZHJtL2k5MTU6IEVuYWJsZSBQQ0ggRklGTyB1bmRlcnJ1bnMgbGF0ZXIgb24gSUxL L1NOQi9JVkIKPiAKPiB3ZSBjYW4gb25seSBlbmFibGUgZmlmbyB1bmRlcnJ1biByZXBvcnRpbmcg d2hlbiB1c2luZyB0aGUgZmRpL2xwdAo+IGFmdGVyIGV2ZXJ5dGhpbmcgaXMgc2V0IHVwIGFuZCBh ZnRlciBhIGJpdCBvZiB3YWl0aW5nLiBUaGUgd2FpdGluZwo+IGlzIHJlcXVpcmVkLCBlbmFibGlu ZyBpdCByaWdodCBhZnRlciBlbmFibGluZyBlbmNvZGVycyB3aWxsIGZpcnN0IHRyaWdnZXIKPiBh biB1bmRlcnJ1biBvbiB0aGUgcGNoIGFuZCB0aGVuLCAxIGZyYW1lIGxhdGVyLCBhbiB1bmRlcnJ1 biBvbiB0aGUKPiBjcHUuIFR3byB2Ymxhbmsgd2FpdHMgYWZ0ZXIgZW5jb2RlciBlbmFibGluZyBz ZWVtcyBlbm91Z2ggdG8gY3VyYiBpdC4KPiAKPiBBbmQgc2ltaWxhciB0bwo+IAo+IEF1dGhvcjog VmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KPiBEYXRlOiAg IEZyaSBOb3YgMjAgMjI6MDk6MTggMjAxNSArMDIwMAo+IAo+ICAgICBkcm0vaTkxNTogU3VwcHJl c3Mgc3B1cmlvdXMgQ1BVIEZJRk8gdW5kZXJydW5zIG9uIElMSy1JVkIKPiAKPiB3ZSBhbHNvIG5l ZWQgdG8gbWFrZSBzdXJlIGNwdSBmaWZvIHVuZGVycnVuIHJlcG9ydGluZyBpcyBkaXNhYmxlZCB3 aGVuCj4gZW5hYmxpbmcgdGhlIGZkaSByeC90eCBhbmQgcGNoIHRyYW5zY29kZXImcG9ydC4gQnV0 IHNvbWVob3cgdGhpcyBpcwo+IG9ubHkgbmVlZGVkIHdoZW4gZW5hYmxpbmcsIG5vdCBhbHNvIHdo ZW4gZGlzYWJsaW5nLgo+IAo+IENjOiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGlu dXguaW50ZWwuY29tPgo+IFNpZ25lZC1vZmYtYnk6IERhbmllbCBWZXR0ZXIgPGRhbmllbC52ZXR0 ZXJAZmZ3bGwuY2g+CgpCdWd6aWxsYTogaHR0cHM6Ly9idWdzLmZyZWVkZXNrdG9wLm9yZy9zaG93 X2J1Zy5jZ2k/aWQ9OTE1NzgKCj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rp c3BsYXkuYyB8IDEyICsrKysrKysrKystLQo+ICAxIGZpbGUgY2hhbmdlZCwgMTAgaW5zZXJ0aW9u cygrKSwgMiBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfZGlzcGxheS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5j Cj4gaW5kZXggNzc1NGRiOWZhOGE0Li42MjA5N2U5NDk5NmEgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfZGlzcGxheS5jCj4gQEAgLTQ5NzksNyArNDk3OSwxMSBAQCBzdGF0aWMgdm9pZCBo YXN3ZWxsX2NydGNfZW5hYmxlKHN0cnVjdCBkcm1fY3J0YyAqY3J0YykKPiAgCj4gIAlpbnRlbF9j cnRjLT5hY3RpdmUgPSB0cnVlOwo+ICAKPiAtCWludGVsX3NldF9jcHVfZmlmb191bmRlcnJ1bl9y ZXBvcnRpbmcoZGV2X3ByaXYsIHBpcGUsIHRydWUpOwo+ICsJaWYgKGludGVsX2NydGMtPmNvbmZp Zy0+aGFzX3BjaF9lbmNvZGVyKQo+ICsJCWludGVsX3NldF9jcHVfZmlmb191bmRlcnJ1bl9yZXBv cnRpbmcoZGV2X3ByaXYsIHBpcGUsIGZhbHNlKTsKPiArCWVsc2UKPiArCQlpbnRlbF9zZXRfY3B1 X2ZpZm9fdW5kZXJydW5fcmVwb3J0aW5nKGRldl9wcml2LCBwaXBlLCB0cnVlKTsKPiArCj4gIAlm b3JfZWFjaF9lbmNvZGVyX29uX2NydGMoZGV2LCBjcnRjLCBlbmNvZGVyKSB7Cj4gIAkJaWYgKGVu Y29kZXItPnByZV9wbGxfZW5hYmxlKQo+ICAJCQllbmNvZGVyLT5wcmVfcGxsX2VuYWJsZShlbmNv ZGVyKTsKPiBAQCAtNTAyNSw5ICs1MDI5LDEzIEBAIHN0YXRpYyB2b2lkIGhhc3dlbGxfY3J0Y19l bmFibGUoc3RydWN0IGRybV9jcnRjICpjcnRjKQo+ICAJCWludGVsX29wcmVnaW9uX25vdGlmeV9l bmNvZGVyKGVuY29kZXIsIHRydWUpOwo+ICAJfQo+ICAKPiAtCWlmIChpbnRlbF9jcnRjLT5jb25m aWctPmhhc19wY2hfZW5jb2RlcikKPiArCWlmIChpbnRlbF9jcnRjLT5jb25maWctPmhhc19wY2hf ZW5jb2Rlcikgewo+ICsJCWludGVsX3dhaXRfZm9yX3ZibGFuayhkZXYsIHBpcGUpOwo+ICsJCWlu dGVsX3dhaXRfZm9yX3ZibGFuayhkZXYsIHBpcGUpOwo+ICsJCWludGVsX3NldF9jcHVfZmlmb191 bmRlcnJ1bl9yZXBvcnRpbmcoZGV2X3ByaXYsIHBpcGUsIHRydWUpOwo+ICAJCWludGVsX3NldF9w Y2hfZmlmb191bmRlcnJ1bl9yZXBvcnRpbmcoZGV2X3ByaXYsIFRSQU5TQ09ERVJfQSwKPiAgCQkJ CQkJICAgICAgdHJ1ZSk7Cj4gKwl9Cj4gIAo+ICAJLyogSWYgd2UgY2hhbmdlIHRoZSByZWxhdGl2 ZSBvcmRlciBiZXR3ZWVuIHBpcGUvcGxhbmVzIGVuYWJsaW5nLCB3ZSBuZWVkCj4gIAkgKiB0byBj aGFuZ2UgdGhlIHdvcmthcm91bmQuICovCj4gLS0gCj4gMi4xLjAKPiAKCi0tIApEYW5pZWwgVmV0 dGVyClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlvbgpodHRwOi8vYmxvZy5mZnds bC5jaApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRl bC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=