From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: Re: [PATCH v2 2/2] drm/i915/bxt: work around HW context corruption due to coherency problem Date: Fri, 18 Sep 2015 15:24:43 +0300 Message-ID: <1442579083.13059.12.camel@intel.com> References: <1442506664-20159-1-git-send-email-imre.deak@intel.com> <1442506664-20159-2-git-send-email-imre.deak@intel.com> <20150918090224.GS6442@nuc-i3427.alporthouse.com> Reply-To: imre.deak@intel.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 011C96ED0D for ; Fri, 18 Sep 2015 05:24:50 -0700 (PDT) In-Reply-To: <20150918090224.GS6442@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: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCAyMDE1LTA5LTE4IGF0IDEwOjAyICswMTAwLCBDaHJpcyBXaWxzb24gd3JvdGU6Cj4g T24gVGh1LCBTZXAgMTcsIDIwMTUgYXQgMDc6MTc6NDRQTSArMDMwMCwgSW1yZSBEZWFrIHdyb3Rl Ogo+ID4gVGhlIGV4ZWNsaXN0IGNvbnRleHQgb2JqZWN0IGlzIG1hcHBlZCB3aXRoIGEgQ1BVL0dQ VSBjb2hlcmVudCBtYXBwaW5nCj4gPiBldmVyeXdoZXJlLCBidXQgb24gQlhUIEEgc3RlcHBpbmcg ZHVlIHRvIGEgSFcgaXNzdWUgdGhlIGNvaGVyZW5jeSBpcyBub3QKPiA+IGd1YXJhbnRlZWQuIFRv IHdvcmsgYXJvdW5kIHRoaXMgZmx1c2ggdGhlIGNvbnRleHQgb2JqZWN0IGFmdGVyIHBpbm5pbmcK PiA+IGl0ICh0byBmbHVzaCBjYWNoZSBsaW5lcyBsZWZ0IGJ5IHRoZSBjb250ZXh0IGluaXRpYWxp emF0aW9uL3JlYWQtYmFjawo+ID4gZnJvbSBiYWNraW5nIHN0b3JhZ2UpIGFuZCBtYXJrIGl0IGFz IHVuY2FjaGVkIHNvIGxhdGVyIHVwZGF0ZXMgZHVyaW5nCj4gPiBjb250ZXh0IHN3aXRjaGluZyB3 aWxsIGJlIGNvaGVyZW50Lgo+ID4gCj4gPiBJIG5vdGljZWQgdGhpcyBwcm9ibGVtIHZpYSBhIEdQ VSBoYW5nLCB3aGVyZSBJUEVIUiBwb2ludGVkIHRvIGFuIGludmFsaWQKPiA+IG9wY29kZSB2YWx1 ZS4gSSBjb3VsZG4ndCBmaW5kIHRoaXMgdmFsdWUgb24gdGhlIHJpbmcgYnV0IGxvb2tpbmcgYXQg dGhlCj4gPiBjb250ZW50cyBvZiB0aGUgYWN0aXZlIGNvbnRleHQgb2JqZWN0IGl0IHR1cm5lZCBv dXQgdG8gYmUgYSBwYXJhbWV0ZXIKPiA+IGR3b3JkIG9mIGEgYmlnZ2VyIGNvbW1hbmQgdGhlcmUu IFRoZSBvcmlnaW5hbCBjb21tYW5kIG9wY29kZSBpdHNlbGYKPiA+IHdhcyB6ZXJvZWQgb3V0LCBi YXNlZCBvbiB0aGUgYWJvdmUgSSBhc3N1bWUgZHVlIHRvIGEgQ1BVIHdyaXRlYmFjayBvZgo+ID4g dGhlIGNvcnJlc3BvbmRpbmcgY2FjaGVsaW5lLiBXaGVuIHJlc3RvcmluZyB0aGUgY29udGV4dCB0 aGUgR1BVIHdvdWxkCj4gPiBqdW1wIG92ZXIgdGhlIHplcm9lZCBvdXQgb3Bjb2RlIGFuZCBoYW5n IHdoZW4gdHJ5aW5nIHRvIGV4ZWN1dGUgdGhlCj4gPiBhYm92ZSBwYXJhbWV0ZXIgZHdvcmQuCj4g PiAKPiA+IEkgY291bGQgZWFzaWx5IHJlcHJvZHVjZSB0aGlzIGJ5IHJ1bm5pbmcgaWd0L2dlbV9y ZW5kZXJfY29weV9yZWR1eCBhbmQKPiA+IGdlbV90aWxlZF9ibGl0cy9iYXNpYyBpbiBwYXJhbGxl bCwgYnV0IEkgZ3Vlc3MgaXQgY291bGQgYmUgdHJpZ2dlcmVkIGJ5Cj4gPiBhbnl0aGluZyBpbnZv bHZpbmcgZnJlcXVlbnQgc3dpdGNoZXMgYmV0d2VlbiB0d28gc2VwYXJhdGUgY29udGV4dHMuIFdp dGgKPiA+IHRoaXMgd29ya2Fyb3VuZCBJIGNvdWxkbid0IHJlcHJvZHVjZSB0aGUgcHJvYmxlbS4K PiA+IAo+ID4gdjI6Cj4gPiAtIGluc3RlYWQgb2YgY2xmbHVzaGluZyBhZnRlciB1cGRhdGluZyB0 aGUgdGFpbCBhbmQgUERQIHZhbHVlcyBkdXJpbmcKPiA+ICAgY29udGV4dCBzd2l0Y2hpbmcsIG1h cCB0aGUgY29ycmVzcG9uZGluZyBwYWdlIGFzIHVuY2FjaGVkIHRvIGF2b2lkIGEKPiA+ICAgcmFj ZSBiZXR3ZWVuIENQVSBhbmQgR1BVLCBib3RoIHVwZGF0aW5nIHRoZSBzYW1lIGNhY2hlbGluZSBh dCB0aGUgc2FtZQo+ID4gICB0aW1lIChWaWxsZSkKPiAKPiBOby4gQ2hhbmdpbmcgUEFUIGludm9s dmVzIGEgc3RvcF9tYWNoaW5lKCkgYW5kIGlzIHNldmVyZWx5IGRldHJpbWVudGFsCj4gdG8gcGVy Zm9ybWFuY2UgKGNvbnRleHQgY3JlYXRpb24gb3ZlcmhlYWQgZG9lcyBpbXBhY3QgdXNlcnNwYWNl KS4KCkhtLCB3aGVyZSBvbiB0aGF0IHBhdGggaXMgc3RvcF9tYWNoaW5lKCksIEkgaGF2ZW4ndCBm b3VuZCBpdC4gSSBndWVzcwp0aGVyZSBpcyBhbiBvdmVyaGVhZCBiZWNhdXNlIG9mIHRoZSBUTEIg Zmx1c2ggb24gZWFjaCBDUFUsIEkgaGF2ZW4ndApiZW5jaG1hcmtlZCBpdC4gSWYgdGhhdCdzIGEg cmVhbCBpc3N1ZSAoYXRtIHRoaXMgaXMgb25seSBhIHcvYSBmb3IKc3RlcHBpbmcgQSkgd2UgY291 bGQgaGF2ZSBhIGNhY2hlIG9mIHVuY2FjaGVkIHBhZ2VzLgoKPiBNYXBwaW5nIGl0IGFzIHVuY2Fj aGVkIGRvZXNuJ3QgcmVtb3ZlIHRoZSByYWNlIGFueXdheS4KClBsZWFzZSBleHBsYWluLCBJIGRv IGJlbGlldmUgaXQgZG9lcy4KCi0tSW1yZQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMu ZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0 aW5mby9pbnRlbC1nZngK