From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH] drm/i915: Check for driver readyness before handling an underrun interrupt Date: Fri, 27 Feb 2015 11:53:49 +0200 Message-ID: <87h9u7adea.fsf@intel.com> References: <1424965982-32678-1-git-send-email-chris@chris-wilson.co.uk> <87pp8vaizt.fsf@intel.com> <87mw3zahqi.fsf@intel.com> <20150227092704.GI20682@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id EC4456E2A7 for ; Fri, 27 Feb 2015 01:54:50 -0800 (PST) In-Reply-To: <20150227092704.GI20682@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 Cc: daniel.vetter@ffwll.ch, intel-gfx@lists.freedesktop.org, rclark@redhat.com, stable@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCAyNyBGZWIgMjAxNSwgQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28u dWs+IHdyb3RlOgo+IE9uIEZyaSwgRmViIDI3LCAyMDE1IGF0IDEwOjIwOjA1QU0gKzAyMDAsIEph bmkgTmlrdWxhIHdyb3RlOgo+PiBPbiBGcmksIDI3IEZlYiAyMDE1LCBKYW5pIE5pa3VsYSA8amFu aS5uaWt1bGFAbGludXguaW50ZWwuY29tPiB3cm90ZToKPj4gPiBPbiBUaHUsIDI2IEZlYiAyMDE1 LCBDaHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4gd3JvdGU6Cj4+ID4+IFdo ZW4gd2UgdGFrZW92ZXIgZnJvbSB0aGUgQklPUyBhbmQgaW5zdGFsbCBvdXIgaW50ZXJydXB0IGhh bmRsZXIsIHRoZQo+PiA+PiBCSU9TIG1heSBoYXZlIGxlZnQgdXMgYSBmZXcgc3VycHJpc2VzIGlu IHRoZSBmb3JtIG9mIHNwb250YW5lb3VzCj4+ID4+IGludGVycnVwdHMuIChUaGlzIGlzIGVzcGVj aWFsbHkgbGlrZWx5IG9uIGhhcmR3YXJlIGxpa2UgOTY1Z20gd2hlcmUKPj4gPj4gZGlzcGxheSBm aWZvIHVuZGVycnVucyBhcmUgY29udGludW91cyBhbmQgdGhlIEdNQ0ggY2Fubm90IGZpbHRlciB0 aGF0Cj4+ID4+IGludGVycnVwdCBzb3VjZS4pIEFzIHdlIGVuYWJsZSBvdXIgSVJRIGVhcmx5IHNv IHRoYXQgd2UgY2FuIHVzZSBpdAo+PiA+PiBkdXJpbmcgaGFyZHdhcmUgcHJvYmluZywgb3VyIGlu dGVycnVwdCBoYW5kbGVyIG11c3QgYmUgcHJlcGFyZWQgdG8KPj4gPj4gaGFuZGxlIGEgZmV3IHNv dXJjZXMgcHJpb3IgdG8gYmVpbmcgZnVsbHkgY29uZmlndXJlZC4gQXMgc3VjaCwgd2UgbmVlZAo+ PiA+PiB0byBhZGQgYSBzaW1wbGUgaXMtcmVhZHkgY2hlY2sgcHJpb3IgdG8gZGVyZWZlcmVuY2lu ZyBvdXIgS01TIHN0YXRlIGZvcgo+PiA+PiByZXBvcnRpbmcgdW5kZXJydW5zLgo+PiA+Pgo+PiA+ PiBSZXBvcnRlZC1ieTogUm9iIENsYXJrIDxyY2xhcmtAcmVkaGF0LmNvbT4KPj4gPj4gQnVnemls bGE6IGh0dHBzOi8vYnVnemlsbGEucmVkaGF0LmNvbS9zaG93X2J1Zy5jZ2k/aWQ9MTE5Mzk3Mgo+ PiA+Cj4+ID4gIllvdSBhcmUgbm90IGF1dGhvcml6ZWQgdG8gYWNjZXNzIGJ1ZyAjMTE5Mzk3Mi4g VG8gc2VlIHRoaXMgYnVnLCB5b3UKPj4gPiBtdXN0IGZpcnN0IGxvZyBpbiB0byBhbiBhY2NvdW50 IHdpdGggdGhlIGFwcHJvcHJpYXRlIHBlcm1pc3Npb25zLiIKPj4gPgo+PiA+IE1laC4KPj4gCj4+ IFB1c2hlZCB0byBkcm0taW50ZWwtZml4ZXMsIHRoYW5rcyBmb3IgdGhlIHBhdGNoIGFuZCByZXZp ZXcuIElmIHNvbWVvbmUKPj4gYm90aCBjYXJlcyBhbmQgaGFzIGFjY2VzcyB0byB0aGUgYnVnemls bGEsIHBsZWFzZSB1cGRhdGUgaXQuCj4KPiBKYW5pLCBJIGdvb2ZlZC4uLgo+Cj4+ID4+ICAJLyog R01DSCBjYW4ndCBkaXNhYmxlIGZpZm8gdW5kZXJydW5zLCBmaWx0ZXIgdGhlbS4gKi8KPj4gPj4g IAlpZiAoSEFTX0dNQ0hfRElTUExBWShkZXZfcHJpdi0+ZGV2KSAmJgo+PiA+PiAtCSAgICAhX19j cHVfZmlmb191bmRlcnJ1bl9yZXBvcnRpbmdfZW5hYmxlZChkZXZfcHJpdiwgcGlwZSkpCj4+ID4+ ICsJICAgICF0b19pbnRlbF9jcnRjKGNydGMpLT5jcHVfZmlmb191bmRlcnJ1bl9kaXNhYmxlZCkK Pgo+IFNob3VsZCBiZSB3aXRob3V0IHRoZSAnISc6Cj4gaWYgKEhBU19HTUNIX0RJU1BMQVkoZGV2 X3ByaXYtPmRldikgJiYKPiAgICAgdG9faW50ZWxfY3J0YyhjcnRjKS0+Y3B1X2ZpZm9fdW5kZXJy dW5fZGlzYWJsZWQpCgpJdCBuZXZlciBoYXBwZW5lZC4KCkJSLApKYW5pLgoKCj4gLUNocmlzCj4K PiAtLSAKPiBDaHJpcyBXaWxzb24sIEludGVsIE9wZW4gU291cmNlIFRlY2hub2xvZ3kgQ2VudHJl CgotLSAKSmFuaSBOaWt1bGEsIEludGVsIE9wZW4gU291cmNlIFRlY2hub2xvZ3kgQ2VudGVyCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBt YWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMu ZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==