From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH 1/3] drm/i915: Suppress spurious CPU FIFO underruns on ILK-IVB Date: Mon, 23 Nov 2015 16:55:17 +0200 Message-ID: <20151123145517.GZ4437@intel.com> References: <1448050160-14124-1-git-send-email-ville.syrjala@linux.intel.com> <20151121105150.GC366@nuc-i3427.alporthouse.com> <20151123142208.GY4437@intel.com> <20151123142829.GD20097@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id EEF066E615 for ; Mon, 23 Nov 2015 06:57:27 -0800 (PST) Content-Disposition: inline In-Reply-To: <20151123142829.GD20097@nuc-i3427.alporthouse.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCBOb3YgMjMsIDIwMTUgYXQgMDI6Mjg6MjlQTSArMDAwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IE9uIE1vbiwgTm92IDIzLCAyMDE1IGF0IDA0OjIyOjA4UE0gKzAyMDAsIFZpbGxlIFN5 cmrDpGzDpCB3cm90ZToKPiA+IE9uIFNhdCwgTm92IDIxLCAyMDE1IGF0IDEwOjUxOjUwQU0gKzAw MDAsIENocmlzIFdpbHNvbiB3cm90ZToKPiA+ID4gT24gRnJpLCBOb3YgMjAsIDIwMTUgYXQgMTA6 MDk6MThQTSArMDIwMCwgdmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20gd3JvdGU6Cj4gPiA+ ID4gRnJvbTogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4K PiA+ID4gPiAKPiA+ID4gPiBXZSBzdGlsbCBnZXQgc3B1cmlvdXMgcGlwZSB1bmRlcnJ1bnMgb24g SUxLL1NOQi9JVkIgdW5kZXIgdHdvCj4gPiA+ID4gY2lyY3Vtc3RhbmNlcyB3aGVuIGRlYWxpbmcg d2l0aCBQQ0ggcG9ydHM6Cj4gPiA+ID4gKiBXaGVuIHRoZSBwaXBlIGhhcyBiZWVuIGRpc2FibGVk LCBidXQgRkRJIFJYL1RYIGlzIHN0aWxsIGVuYWJsZWQKPiA+ID4gPiAqIER1cmluZyBGREkgbGlu ayB0cmFpbmluZwo+ID4gPiA+IAo+ID4gPiA+IEJvdGggY2FzZXMgc2VlbSB0byBoYXBwZW4gYXQg bGVhc3Qgd2hlbiB3ZSBkbyBWR0ErSERNSSBjbG9uaW5nCj4gPiA+ID4gZnJvbSB0aGUgc2FtZSBw aXBlLiBJIGRvbid0IHRoaW5rIEkndmUgc2VlbiB0aGVtIHdoZW4gbm90IGNsb25pbmcsCj4gPiA+ ID4gYnV0IGNhbid0IGJlIDEwMCUgc3VyZS4KPiA+ID4gPiAKPiA+ID4gPiBEaXNhYmxlIHVuZGVy cnVuIHJlcG9ydGluZyBhcm91bmQgdGhvc2UgcGxhY2VzIHRvIGVsaW1pbmF0ZSB0aGUKPiA+ID4g PiBkbWVzZyBlcnJvcnMuCj4gPiA+ID4gCj4gPiA+ID4gVGVzdGNhc2U6IGlndC9rbXNfc2V0bW9k ZS9iYXNpYy1jbG9uZS1zaW5nbGUtY3J0Ywo+ID4gPiA+IFNpZ25lZC1vZmYtYnk6IFZpbGxlIFN5 cmrDpGzDpCA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+Cj4gPiA+IEFja2VkLWJ5OiBD aHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KPiA+ID4gCj4gPiA+IEkgd29u ZGVyZWQgaWYgbG9nZ2luZyB0aGUgc3VwcHJlc3NlZCBlcnJvcnMgd291bGQgYmUgb2YgYW55IHVz ZT8KPiA+IAo+ID4gSG1tLiBNYXliZSBqdXN0IHRvIGNvbmZpcm0gdGhhdCB0aGV5IHN0aWxsIGhh cHBlbiwgYW5kIHRodXMgc3VwcHJlc3NpbmcKPiA+IGlzIHN0aWxsIG5lZGVkLgo+ID4gCj4gPiA+ IERvZXMKPiA+ID4gdGhlIGNoZWNrX2NwdV9maWZvIHdvcmsgaWYgdGhlIHJlcG9ydGluZyBpcyBk aXNhYmxlZD8gQ291bGQgd2UgZG8gYQo+ID4gPiBtYW51YWwgY2hlY2sgYW5kIERSTV9ERUJVR19L TVMoKSBpZiB0aGUgZW5hYmxlIGRpZCBnZW5lcmF0ZSBhIGZhaWx1cmUuCj4gPiA+IElmIHRoZSBj aGVja19jcHVfZmlmbyBkb2VzIHdvcmssIHdvbid0IHdlIHN0aWxsIGdldCB0aGUgZXJyb3IgZnJv bSB0aGUKPiA+ID4gYWRkZWQgY2hlY2sgaW4gYXRvbWljX2NvbW1pdCgpPwo+ID4gCj4gPiBUaGUg Y2hlY2sgb25seSBsb29rcyBhdCBwaXBlcyB0aGF0IGhhdmUgdW5kZXJydW4gcmVwb3J0aW5nIGVu YWJsZWQuIEkKPiA+IHN1cHBvc2UgaXQgbWlnaHQgYmUgcG9zc2libGUgdG8gaGF2ZSBpdCBjaGVj ayBhbGwgdGhlIHBpcGVzLiBBdCB0aGUKPiA+IHBvaW50IHdoZXJlIHdlIGNhbGwgaXQgbm8gZXhw bGljaXQgc3VwcHJlc3Npb24gc2hvdWxkIGJlIGhhcHBlbmluZywgc28KPiA+IHRoZSBvbmx5IHJl YXNvbiB3aHkgdW5kZXJydW4gcmVwb3J0aW5nIHdvdWxkIGJlIGRpc2FibGVkIG9uIGFueSBwaXBl IGlzCj4gPiBkdWUgdG8gZGV0ZWN0aW5nIGEgcHJldmlvdXMgdW5kZXJydW4gdmlhIHRoZSBpbnRl cnJ1cHQuCj4gCj4gRG9lcyB0aGUgaHcgZmxhZyB0aGUgdW5kZXJydW4gZXZlbiBpZiB0aGUgaW50 ZXJydXB0IGlzIGRpc2FibGVkPwo+IChQbGF5aW5nIGdhbWVzIHdpdGggUElQRVNUQVRfSUVSPykg Q291bGQgd2UgdGhlbiByZXBvcnQgKGRlYnVnKSB0aGF0IGFuCj4gdW5kZXJydW4gaGFwcGVuZWQg YmVmb3JlIHdlIHJlLWVuYWJsZSByZXBvcnRpbmc/CgpIbW0uIFdlIHVzZSB0aGUgSU1SIHRvIGRp c2FibGUgdGhpcyBzdHVmZiBvbiBtYW55IHBsYXRmb3Jtcywgc28gd2UKZG8gbG9zZSB0aGUgSUlS LiBTbyB3ZSdkIG5lZWQgdG8gZnJvYiBJRVIgaW5zdGVhZCB0byBtYWtlIHRoaXMgd29yawp1bml2 ZXJzYWxseS4gQ3VycmVudGx5IGl0IHdvdWxkIG9ubHkgd29yayBmb3IgR01DSCwgSVZCL0hTVywK Q1BUL1BQVC9MUFQvV1BUIHNpbmNlIFBJUEVTVEFUL0VSUl9JTlQvU0VSUl9JTlQgZG9uJ3QgaGF2 ZSBJTVIuCgotLSAKVmlsbGUgU3lyasOkbMOkCkludGVsIE9UQwpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVs LWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9t YWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=