From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: "Zanoni, Paulo R" To: "ville.syrjala@linux.intel.com" , "cpaul@redhat.com" , "intel-gfx@lists.freedesktop.org" , "maarten.lankhorst@linux.intel.com" , "Roper, Matthew D" CC: "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , "daniel.vetter@ffwll.ch" , "Vetter, Daniel" , "airlied@linux.ie" , "stable@vger.kernel.org" Subject: Re: [Intel-gfx] [PATCH v10] drm/i915/skl: Add support for the SAGV, fix underrun hangs Date: Tue, 9 Aug 2016 13:47:26 +0000 Message-ID: <1470750440.2424.37.camel@intel.com> References: <1470690207-6606-1-git-send-email-cpaul@redhat.com> <1470690207-6606-2-git-send-email-cpaul@redhat.com> <28908639-4070-d39a-b96c-2fc30083b55d@linux.intel.com> In-Reply-To: <28908639-4070-d39a-b96c-2fc30083b55d@linux.intel.com> Content-Language: en-US Content-Type: text/plain; charset="utf-8" Content-ID: <909D63070945F448BC98D93765630EBD@intel.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: RW0gVGVyLCAyMDE2LTA4LTA5IMOgcyAxNDo0NCArMDIwMCwgTWFhcnRlbiBMYW5raG9yc3QgZXNj cmV2ZXU6DQo+IEhleSwNCj4gDQo+IE9wIDA4LTA4LTE2IG9tIDIzOjAzIHNjaHJlZWYgTHl1ZGU6 DQo+ID4gDQo+ID4gU2luY2UgdGhlIHdhdGVybWFyayBjYWxjdWxhdGlvbnMgZm9yIFNreWxha2Ug YXJlIHN0aWxsIGJyb2tlbiwNCj4gPiB3ZSdyZSBhcHQNCj4gPiB0byBoaXR0aW5nIHVuZGVycnVu cyB2ZXJ5IGVhc2lseSB1bmRlciBtdWx0aS1tb25pdG9yDQo+ID4gY29uZmlndXJhdGlvbnMuDQo+ ID4gV2hpbGUgaXQgd291bGQgYmUgbG92ZWx5IGlmIHRoaXMgd2FzIGZpeGVkLCBpdCdzIG5vdC4g QW5vdGhlcg0KPiA+IHByb2JsZW0NCj4gPiB0aGF0J3MgYmVlbiBjb21pbmcgZnJvbSB0aGlzIGhv d2V2ZXIsIGlzIHRoZSBteXN0ZXJpb3VzIGlzc3VlIG9mDQo+ID4gdW5kZXJydW5zIGNhdXNpbmcg ZnVsbCBzeXN0ZW0gaGFuZ3MuIEFuIGVhc3kgd2F5IHRvIHJlcHJvZHVjZSB0aGlzDQo+ID4gd2l0 aA0KPiA+IGEgc2t5bGFrZSBzeXN0ZW06DQo+ID4gDQo+ID4gLSBHZXQgYSBsYXB0b3Agd2l0aCBh IHNreWxha2UgR1BVLCBhbmQgaG9vayB1cCB0d28gZXh0ZXJuYWwNCj4gPiBtb25pdG9ycyB0bw0K PiA+IMKgIGl0DQo+ID4gLSBNb3ZlIHRoZSBjdXJzb3IgZnJvbSB0aGUgYnVpbHQtaW4gTENEIHRv IG9uZSBvZiB0aGUgZXh0ZXJuYWwNCj4gPiBkaXNwbGF5cw0KPiA+IMKgIGFzIHF1aWNrbHkgYXMg eW91IGNhbg0KPiA+IC0gWW91J2xsIGdldCBhIGZldyBwaXBlIHVuZGVycnVucywgYW5kIGV2ZW50 dWFsbHkgdGhlIGVudGlyZSBzeXN0ZW0NCj4gPiB3aWxsDQo+ID4gwqAganVzdCBmcmVlemUuDQo+ ID4gDQo+ID4gQWZ0ZXIgZG9pbmcgYSBsb3Qgb2YgaW52ZXN0aWdhdGlvbiBhbmQgcmVhZGluZyB0 aHJvdWdoIHRoZSBic3BlYywgSQ0KPiA+IGZvdW5kIHRoZSBleGlzdGVuY2Ugb2YgdGhlIFNBR1Ys IHdoaWNoIGlzIHJlc3BvbnNpYmxlIGZvciBhZGp1c3RpbmcNCj4gPiB0aGUNCj4gPiBzeXN0ZW0g YWdlbnQgdm9sdGFnZSBhbmQgY2xvY2sgZnJlcXVlbmNpZXMgZGVwZW5kaW5nIG9uIGhvdyBtdWNo DQo+ID4gcG93ZXINCj4gPiB3ZSBuZWVkLiBBY2NvcmRpbmcgdG8gdGhlIGJzcGVjOg0KPiA+IA0K PiA+ICJUaGUgZGlzcGxheSBlbmdpbmUgYWNjZXNzIHRvIHN5c3RlbSBtZW1vcnkgaXMgYmxvY2tl ZCBkdXJpbmcgdGhlDQo+ID4gwqBhZGp1c3RtZW50IHRpbWUuIFNBR1YgZGVmYXVsdHMgdG8gZW5h YmxlZC4gU29mdHdhcmUgbXVzdCB1c2UgdGhlDQo+ID4gwqBHVC1kcml2ZXIgcGNvZGUgbWFpbGJv eCB0byBkaXNhYmxlIFNBR1Ygd2hlbiB0aGUgZGlzcGxheSBlbmdpbmUgaXMNCj4gPiBub3QNCj4g PiDCoGFibGUgdG8gdG9sZXJhdGUgdGhlIGJsb2NraW5nIHRpbWUuIg0KPiA+IA0KPiA+IFRoZSBy ZXN0IG9mIHRoZSBic3BlYyBnb2VzIG9uIHRvIGV4cGxhaW4gdGhhdCBzb2Z0d2FyZSBjYW4gc2lt cGx5DQo+ID4gbGVhdmUNCj4gPiB0aGUgU0FHViBlbmFibGVkLCBhbmQgZGlzYWJsZSBpdCB3aGVu IHdlIHVzZSBpbnRlcmxhY2VkIHBpcGVzL2hhdmUNCj4gPiBtb3JlDQo+ID4gdGhlbiBvbmUgcGlw ZSBhY3RpdmUuDQo+ID4gDQo+ID4gU3VyZSBlbm91Z2gsIHdpdGggdGhpcyBwYXRjaHNldCB0aGUg c3lzdGVtIGhhbmdzIHJlc3VsdGluZyBmcm9tDQo+ID4gcGlwZQ0KPiA+IHVuZGVycnVucyBvbiBT a3lsYWtlIGhhdmUgY29tcGxldGVseSB2YW5pc2hlZCBvbiBteSBUNDYwcy4NCj4gPiBBZGRpdGlv bmFsbHksDQo+ID4gdGhlIGJzcGVjIG1lbnRpb25zIHR1cm5pbmcgb2ZmIHRoZSBTQUdWCXdpdGgg bW9yZSB0aGVuIG9uZQ0KPiA+IHBpcGUgZW5hYmxlZA0KPiA+IGFzIGEgd29ya2Fyb3VuZCBmb3Ig ZGlzcGxheSB1bmRlcnJ1bnMuIFdoaWxlIHRoaXMgcGF0Y2ggZG9lc24ndA0KPiA+IGVudGlyZWx5 DQo+ID4gZml4IHRoYXQsIGl0IGxvb2tzIGxpa2UgaXQgZG9lcyBpbXByb3ZlIHRoZSBzaXR1YXRp b24gYSBsaXR0bGUgYml0DQo+ID4gc28NCj4gPiBpdCdzIGxpa2VseSB0aGlzIGlzIGdvaW5nIHRv IGJlIHJlcXVpcmVkIHRvIG1ha2Ugd2F0ZXJtYXJrcyBvbg0KPiA+IFNreWxha2UNCj4gPiBmdWxs eSBmdW5jdGlvbmFsLg0KPiANCj4gSSB0aGluayB0aGlzIHBhdGNoIGdvZXMgd2l0aCB2OSA2LzYg YW5kIHY4IDItNS82LiBJZiB5b3UncmUgb25seQ0KPiB1cGRhdGluZyBhIHNpbmdsZSBwYXRjaCBp dCBtaWdodCBiZSBiZXR0ZXIgdG8gc2VuZCBpdCBpbiByZXBseSB0byB0aGUNCj4gb3JpZ2luYWwg cGF0Y2guDQo+IA0KPiBJJ20gdGVzdGluZyB0aGUgd2hvbGUgc2VyaWVzIG9uIG15IHByZXJlbGVh c2Ugc2t5bGFrZSwgYW5kIHJ1bm5pbmcNCj4gaW50byB0aGlzOg0KPiANCj4gWyAyNzk0LjkzMzE0 OV0ga21zX2N1cnNvcl9sZWdhY3k6IHN0YXJ0aW5nIHN1YnRlc3QgMngtZmxpcC12cy1jdXJzb3It DQo+IGxlZ2FjeQ0KPiBbIDI3OTUuODEzOTcwXSBbZHJtOnNrbF9kaXNhYmxlX3NhZ3YgW2k5MTVd XSAqRVJST1IqIFJlcXVlc3QgdG8NCj4gZGlzYWJsZSBTQUdWIHRpbWVkIG91dA0KPiANCj4gVmFs dWUgcmV0dXJuZWQgZnJvbSBza2xfZG9fc2Fndl9kaXNhYmxlIGlzIGFsd2F5cyAwIGZvciBtZSwg ZXZlbiB3aGVuDQo+IEkgYnVtcCB0aGUgdGltZW91dCB0byAxNS4NCg0KWWVzdGVyZGF5IEkgc3Rh cnRlZCB0ZXN0aW5nIHRoaXMgc2VyaWVzLCBhbmQgSSBhbHNvIG5vdGljZWQgc29tZSB2aXN1YWwN CmNvcnJ1cHRpb246IHdoaWxlIGJyb3dzaW5nIG1vZGVyYXRlbHktaGVhdnkgd2Vic2l0ZXMgb24g YSBtYXhpbWl6ZWQNCkZpcmVmb3gsIEkgY291bGQgc2VlIHRoZSBkZXNrdG9wIGJhY2tncm91bmQg c29ydCBvZiAiYmxpbmtpbmciIGluIHRoZQ0Kc2NyZWVuICh0aGUgYmFja2dyb3VuZCB3YXMgbm90 IHN1cHBvc2VkIHRvIGJlIHZpc2libGUpLiBJdCBsb29rcyBsaWtlDQp0aGUgcHJvYmxlbSB3YXMg aW50cm9kdWNlZCBieSBwYXRjaCA0LCBidXQgSSBjYW4ndCBiZSAxMDAlIHN1cmUgc2luY2UNCnNv bWV0aW1lcyBpdCdzIGEgbGl0dGxlIGhhcmRlciB0byByZXByb2R1Y2UgaXQuIFN0aWxsLCB0aGlz IGlzIGJldHRlcg0KdGhhbiB0aGUgY3VycmVudCAiWCBkb2Vzbid0IHdvcmsiIHN0YXRlIHRoYXQg d2UgaGF2ZSB3aXRob3V0IHRoZQ0Kc2VyaWVzLg0KDQo+IA0KPiB+TWFhcnRlbg0KPiANCj4gX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18NCj4gSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdA0KPiBJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnDQo+IGh0dHBz Oi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4