From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH v2] drm/i915/chv: Remove DPIO force latency causing interpair skew issue Date: Fri, 10 Apr 2015 13:54:10 +0300 Message-ID: <20150410105410.GW17410@intel.com> References: <1428599825-1000-1-git-send-email-clinton.a.taylor@intel.com> <1428612126-4634-1-git-send-email-clinton.a.taylor@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id CB3466E928 for ; Fri, 10 Apr 2015 03:54:15 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1428612126-4634-1-git-send-email-clinton.a.taylor@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: clinton.a.taylor@intel.com Cc: Intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBBcHIgMDksIDIwMTUgYXQgMDE6NDI6MDZQTSAtMDcwMCwgY2xpbnRvbi5hLnRheWxv ckBpbnRlbC5jb20gd3JvdGU6Cj4gRnJvbTogQ2xpbnQgVGF5bG9yIDxjbGludG9uLmEudGF5bG9y QGludGVsLmNvbT4KPiAKPiBMYXRlc3QgdmVyc2lvbiBvZiB0aGUgIkNIViBEUElPIHByb2dyYW1t aW5nIG5vdGVzIiBubyBsb25nZXIgcmVxdWlyZXMgd3JpdGVzCj4gdG8gVFggRFcgMTEgdG8gZml4 IGEgKzJVSSBpbnRlcnBhaXIgc2tldyBpc3N1ZS4gVGhlIGN1cnJlbnQgY29kZSBmcm9tCj4gQXBy aWwgMjAxNCB3YXMgYWN0dWFsbHkgY2F1c2luZyBhZGRpdGlvbmFsIHNrZXcgaXNzdWVzIGJldHdl ZW4gYWxsCj4gVE1EUyBwYWlycy4KPiAKPiB2ZXIyOiBhZGRlZCBzYW1lIHRyZWF0bWVudCB0byBp bnRlbF9kcC5jIGJhc2VkIG9uIFZpbGxlJ3MgdGVzdGluZy4KPiAKPiBDYzogVmlsbGUgPT9pc28t ODg1OS0xP1E/U3lyaj1FNGw9RTQ/PSA8dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+Cj4g U2lnbmVkLW9mZi1ieTogQ2xpbnQgVGF5bG9yIDxjbGludG9uLmEudGF5bG9yQGludGVsLmNvbT4K ClllcCB0aGlzIGZpeGVzIHRoZSBEUCBsaW5rIHRyYWluaW5nIGlzc3VlcyBvbiBib3RoIG9mIHRo ZSBwcm9ibGVtYXRpYwpkaXNwbGF5cyBJIGhhdmUgKEhQIFpSMjR3IGFuZCBBU1VTIFBCMjc4USku IE5pY2Ugd29yay4KClJldmlld2VkLWJ5OiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFA bGludXguaW50ZWwuY29tPgpUZXN0ZWQtYnk6IFZpbGxlIFN5cmrDpGzDpCA8dmlsbGUuc3lyamFs YUBsaW51eC5pbnRlbC5jb20+Cgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9k cC5jICAgfCAgICA1IC0tLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2hkbWkuYyB8 ICAgIDUgLS0tLS0KPiAgMiBmaWxlcyBjaGFuZ2VkLCAxMCBkZWxldGlvbnMoLSkKPiAKPiBkaWZm IC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX2RwLmMKPiBpbmRleCAxYjg3OTY5Li5mMTA2NzYzIDEwMDY0NAo+IC0tLSBh L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9kcC5jCj4gQEAgLTI3NDAsMTEgKzI3NDAsNiBAQCBzdGF0aWMgdm9pZCBjaHZf cHJlX2VuYWJsZV9kcChzdHJ1Y3QgaW50ZWxfZW5jb2RlciAqZW5jb2RlcikKPiAgCj4gIAkvKiBQ cm9ncmFtIFR4IGxhbmUgbGF0ZW5jeSBvcHRpbWFsIHNldHRpbmcqLwo+ICAJZm9yIChpID0gMDsg aSA8IDQ7IGkrKykgewo+IC0JCS8qIFNldCB0aGUgbGF0ZW5jeSBvcHRpbWFsIGJpdCAqLwo+IC0J CWRhdGEgPSAoaSA9PSAxKSA/IDB4MCA6IDB4NjsKPiAtCQl2bHZfZHBpb193cml0ZShkZXZfcHJp diwgcGlwZSwgQ0hWX1RYX0RXMTEoY2gsIGkpLAo+IC0JCQkJZGF0YSA8PCBEUElPX0ZSQ19MQVRF TkNZX1NIRklUKTsKPiAtCj4gIAkJLyogU2V0IHRoZSB1cGFyIGJpdCAqLwo+ICAJCWRhdGEgPSAo aSA9PSAxKSA/IDB4MCA6IDB4MTsKPiAgCQl2bHZfZHBpb193cml0ZShkZXZfcHJpdiwgcGlwZSwg Q0hWX1RYX0RXMTQoY2gsIGkpLAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9oZG1pLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9oZG1pLmMKPiBpbmRleCAy NjIyMmU2Li4zY2VmMzI2IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs X2hkbWkuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2hkbWkuYwo+IEBAIC0x NTE1LDExICsxNTE1LDYgQEAgc3RhdGljIHZvaWQgY2h2X2hkbWlfcHJlX2VuYWJsZShzdHJ1Y3Qg aW50ZWxfZW5jb2RlciAqZW5jb2RlcikKPiAgCj4gIAkvKiBQcm9ncmFtIFR4IGxhdGVuY3kgb3B0 aW1hbCBzZXR0aW5nICovCj4gIAlmb3IgKGkgPSAwOyBpIDwgNDsgaSsrKSB7Cj4gLQkJLyogU2V0 IHRoZSBsYXRlbmN5IG9wdGltYWwgYml0ICovCj4gLQkJZGF0YSA9IChpID09IDEpID8gMHgwIDog MHg2Owo+IC0JCXZsdl9kcGlvX3dyaXRlKGRldl9wcml2LCBwaXBlLCBDSFZfVFhfRFcxMShjaCwg aSksCj4gLQkJCQlkYXRhIDw8IERQSU9fRlJDX0xBVEVOQ1lfU0hGSVQpOwo+IC0KPiAgCQkvKiBT ZXQgdGhlIHVwYXIgYml0ICovCj4gIAkJZGF0YSA9IChpID09IDEpID8gMHgwIDogMHgxOwo+ICAJ CXZsdl9kcGlvX3dyaXRlKGRldl9wcml2LCBwaXBlLCBDSFZfVFhfRFcxNChjaCwgaSksCj4gLS0g Cj4gMS43LjkuNQoKLS0gClZpbGxlIFN5cmrDpGzDpApJbnRlbCBPVEMKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJ bnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5v cmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK