From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: Potential BUG in drm/i915/execlists: Reset RING registers upon resume Date: Mon, 20 Mar 2017 17:42:55 +0200 Message-ID: <87a88gar9c.fsf@intel.com> References: <1489443835.5568.7.camel@mailbox.org> <87fui8at69.fsf@intel.com> <20170320151358.GB14800@kroah.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 ESMTPS id 146686E5E6 for ; Mon, 20 Mar 2017 15:43:02 +0000 (UTC) In-Reply-To: <20170320151358.GB14800@kroah.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Greg Kroah-Hartman Cc: Damian Dominik Martinez Dreyer , intel-gfx@lists.freedesktop.org, stable@vger.kernel.org, Eric Blau List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCAyMCBNYXIgMjAxNywgR3JlZyBLcm9haC1IYXJ0bWFuIDxncmVna2hAbGludXhmb3Vu ZGF0aW9uLm9yZz4gd3JvdGU6Cj4gT24gTW9uLCBNYXIgMjAsIDIwMTcgYXQgMDU6MDE6MzRQTSAr MDIwMCwgSmFuaSBOaWt1bGEgd3JvdGU6Cj4+IE9uIFR1ZSwgMTQgTWFyIDIwMTcsIEVyaWMgQmxh dSA8ZWJsYXVAZWJsYXUuY29tPiB3cm90ZToKPj4gPiBUaGF0J3MgZnVubnkuIEkgaGF2ZSBhIE1h Y0Jvb2sgUHJvIDEyLDEgZnJvbSBsYXRlIDIwMTUuIEhpYmVybmF0ZQo+PiA+IGZhaWxlZCBmb3Ig bWUgaW4gNC45LjYgdGhyb3VnaCA0LjkuOCAocG9zc2libHkgZWFybGllciBhcyB3ZWxsLCBJIGRv Cj4+ID4gbm8gcmVjYWxsKSB3aXRob3V0IHRoZSBwYXRjaC4gVGhlIHBhdGNoIHlvdSByZWZlcmVu Y2UgZml4ZWQgbXkgcHJvYmxlbQo+PiA+IGFuZCBhcHBhcmVudGx5IG1hbnkgb3RoZXJzIGJhc2Vk IG9uIHRoZSBidWcgcmVwb3J0czoKPj4gPgo+PiA+IGh0dHBzOi8vYnVncy5mcmVlZGVza3RvcC5v cmcvc2hvd19idWcuY2dpP2lkPTk2NTI2Cj4+ID4KPj4gPiBJIGFwcGxpZWQgdGhlIHBhdGNoIG15 c2VsZiBpbiA0LjkuNiB0aHJvdWdoIDQuOS44IGFuZCBoaWJlcm5hdGUgd29ya3MKPj4gPiBmb3Ig bWUuIEkgaGF2ZSBydW4gdmFuaWxsYSA0LjkuOSBhbmQgNC4xMC4xIGFuZCBpbiBib3RoIGhpYmVy bmF0ZQo+PiA+IHdvcmtzLgo+PiAKPj4gU28gSSdtIHF1aXRlIHN1cnByaXNlZAo+PiAKPj4gY29t bWl0IGYyYTA0MDlhMDg1MDJkNjRmYmUzOTkwMzU0ZGZmNTkwMmIwOGQyZmIKPj4gQXV0aG9yOiBD aHJpcyBXaWxzb24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KPj4gRGF0ZTogICBXZWQgU2Vw IDIxIDE0OjUxOjA4IDIwMTYgKzAxMDAKPj4gCj4+ICAgICBkcm0vaTkxNS9leGVjbGlzdHM6IFJl c2V0IFJJTkcgcmVnaXN0ZXJzIHVwb24gcmVzdW1lCj4+ICAgICAKPj4gICAgIGNvbW1pdCBiYWZi MmY3ZDQ3NTViZjE1NzFiZDVlOWEwM2I5N2YzZmM0ZmU2OWFlIHVwc3RyZWFtLgo+PiAKPj4gZW5k ZWQgdXAgaW4gdjQuOS45IGNvbnNpZGVyaW5nIHRoYXQgdGhlIHVwc3RyZWFtIGNvbW1pdCBpcyBu b3QgYW5ub3RhdGVkCj4+IGZvciBzdGFibGUsIGl0IGhhcyBubyBGaXhlczogdGFncywgYW5kIEkg Y2FuJ3QgZmluZCBhbnkgYmFja3BvcnQKPj4gcmVxdWVzdHMgb3IgZXZlbiBub3RpZmljYXRpb25z IGZvciBpdCBpbiBteSBtYWlscy4gKEFkbWl0dGVkbHkgSSdtIG5vdAo+PiBzdWJzY3JpYmVkIG9u IHN0YWJsZUAsIGJ1dCBJJ2QgZXhwZWN0IG91ciBsaXN0cywgbWFpbnRhaW5lcnMgb3IKPj4gZGV2 ZWxvcGVycyBiZSBDYydkLikKPgo+IEVyaWMgc2VudCB0aGlzIHRvIHRoZSBzdGFibGUgbGlzdCBh IGZldyB0aW1lcywgbXkgbWlzdGFrZSBmb3Igbm90IHNlZWluZwo+IGhlIGhhZG4ndCBhbHNvIGNj OmVkIHRoZSBkZXZlbG9wZXIgbGlzdC4KPgo+IFdhbnQgbWUgdG8gcmV2ZXJ0IGl0PwoKQ2hyaXMg c2F5cyB0aGF0IHdvdWxkIGJlIHRoZSBjb3JyZWN0IHRoaW5nIHRvIGRvLiBJJ20gbm8gZXhwZXJ0 IGluIHRoZQphcmVhLCBidXQgSUlVQyBoYXZpbmcganVzdCB0aGF0IGNvbW1pdCBiYWNrcG9ydGVk IGlzIG5vdCBlbm91Z2gsCnNvbWV0aGluZyBtb3JlIHdvdWxkIGJlIG5lZWRlZCwgYnV0IHdlJ3Jl IG5vdCBzdXJlIHlldCB3aGF0IGV4YWN0bHkgYW5kCmlmIHRob3NlIGRlcGVuZGVuY2llcyBjYW4g ZWFzaWx5IGJlIGJhY2twb3J0ZWQuCgpCUiwKSmFuaS4KCi0tIApKYW5pIE5pa3VsYSwgSW50ZWwg T3BlbiBTb3VyY2UgVGVjaG5vbG9neSBDZW50ZXIKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlz dHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4v bGlzdGluZm8vaW50ZWwtZ2Z4Cg==