From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kahola Subject: Re: [PATCH] drm/i915: fix fdi related fifo underruns on hsw Date: Tue, 01 Dec 2015 10:15:01 +0200 Message-ID: <1448957701.2984.8.camel@sorvi> References: <1448705139-12534-1-git-send-email-daniel.vetter@ffwll.ch> Reply-To: mika.kahola@intel.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id D7BD26E76C for ; Tue, 1 Dec 2015 00:14:51 -0800 (PST) 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: Daniel Vetter Cc: Intel Graphics Development List-Id: intel-gfx@lists.freedesktop.org T24gU2F0LCAyMDE1LTExLTI4IGF0IDExOjA1ICswMTAwLCBEYW5pZWwgVmV0dGVyIHdyb3RlOgo+ IFNpbWlsYXIgdG8KPiAKPiBjb21taXQgMzdjYThkNGNjZDk4NjBkZjA3NDdhYTJlYTI4MWEzYzlj NGJmODgyNgo+IEF1dGhvcjogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4Lmlu dGVsLmNvbT4KPiBEYXRlOiAgIEZyaSBPY3QgMzAgMTk6MjA6MjcgMjAxNSArMDIwMAo+IAo+ICAg ICBkcm0vaTkxNTogRW5hYmxlIFBDSCBGSUZPIHVuZGVycnVucyBsYXRlciBvbiBJTEsvU05CL0lW Qgo+IAo+IHdlIGNhbiBvbmx5IGVuYWJsZSBmaWZvIHVuZGVycnVuIHJlcG9ydGluZyB3aGVuIHVz aW5nIHRoZSBmZGkvbHB0Cj4gYWZ0ZXIgZXZlcnl0aGluZyBpcyBzZXQgdXAgYW5kIGFmdGVyIGEg Yml0IG9mIHdhaXRpbmcuIFRoZSB3YWl0aW5nCj4gaXMgcmVxdWlyZWQsIGVuYWJsaW5nIGl0IHJp Z2h0IGFmdGVyIGVuYWJsaW5nIGVuY29kZXJzIHdpbGwgZmlyc3QgdHJpZ2dlcgo+IGFuIHVuZGVy cnVuIG9uIHRoZSBwY2ggYW5kIHRoZW4sIDEgZnJhbWUgbGF0ZXIsIGFuIHVuZGVycnVuIG9uIHRo ZQo+IGNwdS4gVHdvIHZibGFuayB3YWl0cyBhZnRlciBlbmNvZGVyIGVuYWJsaW5nIHNlZW1zIGVu b3VnaCB0byBjdXJiIGl0Lgo+IAo+IEFuZCBzaW1pbGFyIHRvCj4gCj4gQXV0aG9yOiBWaWxsZSBT eXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tPgo+IERhdGU6ICAgRnJpIE5v diAyMCAyMjowOToxOCAyMDE1ICswMjAwCj4gCj4gICAgIGRybS9pOTE1OiBTdXBwcmVzcyBzcHVy aW91cyBDUFUgRklGTyB1bmRlcnJ1bnMgb24gSUxLLUlWQgo+IAo+IHdlIGFsc28gbmVlZCB0byBt YWtlIHN1cmUgY3B1IGZpZm8gdW5kZXJydW4gcmVwb3J0aW5nIGlzIGRpc2FibGVkIHdoZW4KPiBl bmFibGluZyB0aGUgZmRpIHJ4L3R4IGFuZCBwY2ggdHJhbnNjb2RlciZwb3J0LiBCdXQgc29tZWhv dyB0aGlzIGlzCj4gb25seSBuZWVkZWQgd2hlbiBlbmFibGluZywgbm90IGFsc28gd2hlbiBkaXNh YmxpbmcuCj4gCj4gQ2M6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRl bC5jb20+Cj4gU2lnbmVkLW9mZi1ieTogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZnds bC5jaD4KUmV2aWV3ZWQtYnk6IE1pa2EgS2Fob2xhIDxtaWthLmthaG9sYUBpbnRlbC5jb20+Cj4g LS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rpc3BsYXkuYyB8IDEyICsrKysrKysr KystLQo+ICAxIGZpbGUgY2hhbmdlZCwgMTAgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkK PiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jIGIv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4gaW5kZXggNzc1NGRiOWZhOGE0 Li42MjA5N2U5NDk5NmEgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf ZGlzcGxheS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4g QEAgLTQ5NzksNyArNDk3OSwxMSBAQCBzdGF0aWMgdm9pZCBoYXN3ZWxsX2NydGNfZW5hYmxlKHN0 cnVjdCBkcm1fY3J0YyAqY3J0YykKPiAgCj4gIAlpbnRlbF9jcnRjLT5hY3RpdmUgPSB0cnVlOwo+ ICAKPiAtCWludGVsX3NldF9jcHVfZmlmb191bmRlcnJ1bl9yZXBvcnRpbmcoZGV2X3ByaXYsIHBp cGUsIHRydWUpOwo+ICsJaWYgKGludGVsX2NydGMtPmNvbmZpZy0+aGFzX3BjaF9lbmNvZGVyKQo+ ICsJCWludGVsX3NldF9jcHVfZmlmb191bmRlcnJ1bl9yZXBvcnRpbmcoZGV2X3ByaXYsIHBpcGUs IGZhbHNlKTsKPiArCWVsc2UKPiArCQlpbnRlbF9zZXRfY3B1X2ZpZm9fdW5kZXJydW5fcmVwb3J0 aW5nKGRldl9wcml2LCBwaXBlLCB0cnVlKTsKPiArCj4gIAlmb3JfZWFjaF9lbmNvZGVyX29uX2Ny dGMoZGV2LCBjcnRjLCBlbmNvZGVyKSB7Cj4gIAkJaWYgKGVuY29kZXItPnByZV9wbGxfZW5hYmxl KQo+ICAJCQllbmNvZGVyLT5wcmVfcGxsX2VuYWJsZShlbmNvZGVyKTsKPiBAQCAtNTAyNSw5ICs1 MDI5LDEzIEBAIHN0YXRpYyB2b2lkIGhhc3dlbGxfY3J0Y19lbmFibGUoc3RydWN0IGRybV9jcnRj ICpjcnRjKQo+ICAJCWludGVsX29wcmVnaW9uX25vdGlmeV9lbmNvZGVyKGVuY29kZXIsIHRydWUp Owo+ICAJfQo+ICAKPiAtCWlmIChpbnRlbF9jcnRjLT5jb25maWctPmhhc19wY2hfZW5jb2RlcikK PiArCWlmIChpbnRlbF9jcnRjLT5jb25maWctPmhhc19wY2hfZW5jb2Rlcikgewo+ICsJCWludGVs X3dhaXRfZm9yX3ZibGFuayhkZXYsIHBpcGUpOwo+ICsJCWludGVsX3dhaXRfZm9yX3ZibGFuayhk ZXYsIHBpcGUpOwo+ICsJCWludGVsX3NldF9jcHVfZmlmb191bmRlcnJ1bl9yZXBvcnRpbmcoZGV2 X3ByaXYsIHBpcGUsIHRydWUpOwo+ICAJCWludGVsX3NldF9wY2hfZmlmb191bmRlcnJ1bl9yZXBv cnRpbmcoZGV2X3ByaXYsIFRSQU5TQ09ERVJfQSwKPiAgCQkJCQkJICAgICAgdHJ1ZSk7Cj4gKwl9 Cj4gIAo+ICAJLyogSWYgd2UgY2hhbmdlIHRoZSByZWxhdGl2ZSBvcmRlciBiZXR3ZWVuIHBpcGUv cGxhbmVzIGVuYWJsaW5nLCB3ZSBuZWVkCj4gIAkgKiB0byBjaGFuZ2UgdGhlIHdvcmthcm91bmQu ICovCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50 ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK