From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: [PATCH 04/14] drm/i915: Enable PCH FIFO underruns later on HSW+ Date: Thu, 29 Oct 2015 12:34:26 -0700 Message-ID: <563274C2.7040705@virtuousgeek.org> References: <1446146763-31821-1-git-send-email-ville.syrjala@linux.intel.com> <1446146763-31821-5-git-send-email-ville.syrjala@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-pa0-f45.google.com (mail-pa0-f45.google.com [209.85.220.45]) by gabe.freedesktop.org (Postfix) with ESMTPS id E531F6EC5B for ; Thu, 29 Oct 2015 12:33:50 -0700 (PDT) Received: by pasz6 with SMTP id z6so49175606pas.2 for ; Thu, 29 Oct 2015 12:33:50 -0700 (PDT) In-Reply-To: <1446146763-31821-5-git-send-email-ville.syrjala@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: ville.syrjala@linux.intel.com, intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gMTAvMjkvMjAxNSAxMjoyNSBQTSwgdmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20gd3Jv dGU6Cj4gRnJvbTogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNv bT4KPiAKPiBBcyB3ZSBkaWQgZm9yIElMSy9TTkIvSVZCLCBtb3ZlIHRoZSBQQ0ggRklGTyB1bmRl cnJ1biBlbmFibGUgdG8gaGFwcGVuCj4gYWZ0ZXIgdGhlIGVuY29kZXIgZW5hYmxlIG9uIEhTVysu IEFuZCBhZ2FpbiwgZm9yIHN5bW1ldHJ5LCBtb3ZlIHRoZQo+IHRoZSBkaXNhYmxlIHRvIGhhcHBl biBiZWZvcmUgZW5jb2RlciBkaXNhYmxlLgo+IAo+IEkndmUgbGVmdCBvdXQgdGhlIHZibGFuayB3 YWl0IGJlZm9yZSB0aGUgZW5hYmxlIGhlcmUgYmVjYXVzZSBJIGRvbid0Cj4ga25vdyBpZiBpdCdz IG5lZWRlZCBvciBub3QuIEFjdHVhbGx5IEkgZG9uJ3Qga25vdyBpZiB0aGlzIGVudGlyZQo+IGNo YW5nZSBpcyBuZWVkZWQgYXMgSSBkb24ndCBoYXZlIGEgSFNXL0JEVyB3aXRoIFZHQSBvdXRwdXQu Cj4gCj4gU2lnbmVkLW9mZi1ieTogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4 LmludGVsLmNvbT4KPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5j IHwgMTYgKysrKysrKysrLS0tLS0tLQo+ICAxIGZpbGUgY2hhbmdlZCwgOSBpbnNlcnRpb25zKCsp LCA3IGRlbGV0aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9kaXNwbGF5LmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kaXNwbGF5LmMKPiBp bmRleCBkNWNiODk5Li40ZmMzZDI0IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1 L2ludGVsX2Rpc3BsYXkuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rpc3Bs YXkuYwo+IEBAIC00OTcxLDExICs0OTcxLDggQEAgc3RhdGljIHZvaWQgaGFzd2VsbF9jcnRjX2Vu YWJsZShzdHJ1Y3QgZHJtX2NydGMgKmNydGMpCj4gIAkJCWVuY29kZXItPnByZV9lbmFibGUoZW5j b2Rlcik7Cj4gIAl9Cj4gIAo+IC0JaWYgKGludGVsX2NydGMtPmNvbmZpZy0+aGFzX3BjaF9lbmNv ZGVyKSB7Cj4gLQkJaW50ZWxfc2V0X3BjaF9maWZvX3VuZGVycnVuX3JlcG9ydGluZyhkZXZfcHJp diwgVFJBTlNDT0RFUl9BLAo+IC0JCQkJCQkgICAgICB0cnVlKTsKPiArCWlmIChpbnRlbF9jcnRj LT5jb25maWctPmhhc19wY2hfZW5jb2RlcikKPiAgCQlkZXZfcHJpdi0+ZGlzcGxheS5mZGlfbGlu a190cmFpbihjcnRjKTsKPiAtCX0KPiAgCj4gIAlpZiAoIWlzX2RzaSkKPiAgCQlpbnRlbF9kZGlf ZW5hYmxlX3BpcGVfY2xvY2soaW50ZWxfY3J0Yyk7Cj4gQEAgLTUwMTIsNiArNTAwOSwxMCBAQCBz dGF0aWMgdm9pZCBoYXN3ZWxsX2NydGNfZW5hYmxlKHN0cnVjdCBkcm1fY3J0YyAqY3J0YykKPiAg CQlpbnRlbF9vcHJlZ2lvbl9ub3RpZnlfZW5jb2RlcihlbmNvZGVyLCB0cnVlKTsKPiAgCX0KPiAg Cj4gKwlpZiAoaW50ZWxfY3J0Yy0+Y29uZmlnLT5oYXNfcGNoX2VuY29kZXIpCj4gKwkJaW50ZWxf c2V0X3BjaF9maWZvX3VuZGVycnVuX3JlcG9ydGluZyhkZXZfcHJpdiwgVFJBTlNDT0RFUl9BLAo+ ICsJCQkJCQkgICAgICB0cnVlKTsKPiArCj4gIAkvKiBJZiB3ZSBjaGFuZ2UgdGhlIHJlbGF0aXZl IG9yZGVyIGJldHdlZW4gcGlwZS9wbGFuZXMgZW5hYmxpbmcsIHdlIG5lZWQKPiAgCSAqIHRvIGNo YW5nZSB0aGUgd29ya2Fyb3VuZC4gKi8KPiAgCWhzd193b3JrYXJvdW5kX3BpcGUgPSBwaXBlX2Nv bmZpZy0+aHN3X3dvcmthcm91bmRfcGlwZTsKPiBAQCAtNTA5Niw2ICs1MDk3LDEwIEBAIHN0YXRp YyB2b2lkIGhhc3dlbGxfY3J0Y19kaXNhYmxlKHN0cnVjdCBkcm1fY3J0YyAqY3J0YykKPiAgCWVu dW0gdHJhbnNjb2RlciBjcHVfdHJhbnNjb2RlciA9IGludGVsX2NydGMtPmNvbmZpZy0+Y3B1X3Ry YW5zY29kZXI7Cj4gIAlib29sIGlzX2RzaSA9IGludGVsX3BpcGVfaGFzX3R5cGUoaW50ZWxfY3J0 YywgSU5URUxfT1VUUFVUX0RTSSk7Cj4gIAo+ICsJaWYgKGludGVsX2NydGMtPmNvbmZpZy0+aGFz X3BjaF9lbmNvZGVyKQo+ICsJCWludGVsX3NldF9wY2hfZmlmb191bmRlcnJ1bl9yZXBvcnRpbmco ZGV2X3ByaXYsIFRSQU5TQ09ERVJfQSwKPiArCQkJCQkJICAgICAgZmFsc2UpOwo+ICsKPiAgCWZv cl9lYWNoX2VuY29kZXJfb25fY3J0YyhkZXYsIGNydGMsIGVuY29kZXIpIHsKPiAgCQlpbnRlbF9v cHJlZ2lvbl9ub3RpZnlfZW5jb2RlcihlbmNvZGVyLCBmYWxzZSk7Cj4gIAkJZW5jb2Rlci0+ZGlz YWJsZShlbmNvZGVyKTsKPiBAQCAtNTEwNCw5ICs1MTA5LDYgQEAgc3RhdGljIHZvaWQgaGFzd2Vs bF9jcnRjX2Rpc2FibGUoc3RydWN0IGRybV9jcnRjICpjcnRjKQo+ICAJZHJtX2NydGNfdmJsYW5r X29mZihjcnRjKTsKPiAgCWFzc2VydF92YmxhbmtfZGlzYWJsZWQoY3J0Yyk7Cj4gIAo+IC0JaWYg KGludGVsX2NydGMtPmNvbmZpZy0+aGFzX3BjaF9lbmNvZGVyKQo+IC0JCWludGVsX3NldF9wY2hf Zmlmb191bmRlcnJ1bl9yZXBvcnRpbmcoZGV2X3ByaXYsIFRSQU5TQ09ERVJfQSwKPiAtCQkJCQkJ ICAgICAgZmFsc2UpOwo+ICAJaW50ZWxfZGlzYWJsZV9waXBlKGludGVsX2NydGMpOwo+ICAKPiAg CWlmIChpbnRlbF9jcnRjLT5jb25maWctPmRwX2VuY29kZXJfaXNfbXN0KQo+IAoKUmV2aWV3ZWQt Ynk6IEplc3NlIEJhcm5lcyA8amJhcm5lc0B2aXJ0dW91c2dlZWsub3JnPgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0 CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=