From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: Re: [PATCH 1/2] drm/i915/bxt: work around HW coherency issue when accessing GPU seqno Date: Wed, 10 Jun 2015 18:55:18 +0300 Message-ID: <1433951718.25216.103.camel@intel.com> References: <1433780924-7673-1-git-send-email-imre.deak@intel.com> <1433780924-7673-2-git-send-email-imre.deak@intel.com> <5575CBF0.5090109@intel.com> <20150608171247.GD11457@nuc-i3427.alporthouse.com> <20150608173451.GF5176@intel.com> <20150608180049.GK11457@nuc-i3427.alporthouse.com> <20150608184002.GG5176@intel.com> <5575EDF9.9070303@intel.com> <1433933973.25216.48.camel@intel.com> <55785353.5090803@virtuousgeek.org> <1433950018.25216.94.camel@intel.com> <557858C6.5040304@virtuousgeek.org> 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 mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 551B16E517 for ; Wed, 10 Jun 2015 08:55:21 -0700 (PDT) In-Reply-To: <557858C6.5040304@virtuousgeek.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Jesse Barnes Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24ga2UsIDIwMTUtMDYtMTAgYXQgMDg6MzMgLTA3MDAsIEplc3NlIEJhcm5lcyB3cm90ZToKPiBP biAwNi8xMC8yMDE1IDA4OjI2IEFNLCBJbXJlIERlYWsgd3JvdGU6Cj4gPiBPbiBrZSwgMjAxNS0w Ni0xMCBhdCAwODoxMCAtMDcwMCwgSmVzc2UgQmFybmVzIHdyb3RlOgo+ID4+IE9uIDA2LzEwLzIw MTUgMDM6NTkgQU0sIEltcmUgRGVhayB3cm90ZToKPiA+Pj4gSSB0aGluayB0aGUgZGlzY3Vzc2lv biBoZXJlIGlzIGFib3V0IHR3byBzZXBhcmF0ZSB0aGluZ3M6Cj4gPj4+IDEuIFBvc3NpYmxlIG9y ZGVyaW5nIGlzc3VlIGJldHdlZW4gdGhlIHNlcW5vIHN0b3JlIGFuZCB0aGUgY29tcGxldGlvbgo+ ID4+PiBpbnRlcnJ1cHQKPiA+Pj4gMi4gQ29oZXJlbmN5IGlzc3VlIHRoYXQgbGVhdmVzIHRoZSBD UFUgd2l0aCBhIHN0YWxlIHZpZXcgb2YgdGhlIHNlcW5vCj4gPj4+IGluZGVmaW5pdGVseSwgd2hp Y2ggdGhpcyBwYXRjaCB3b3JrcyBhcm91bmQKPiA+Pj4KPiA+Pj4gSSdtIGNvbmZpZGVudCB0aGF0 IGluIG15IGNhc2UgdGhlIHByb2JsZW0gaXMgbm90IGR1ZSB0byBvcmRlcmluZy4gSWYgaXQKPiA+ Pj4gd2FzICJvbmx5IiBvcmRlcmluZyB0aGVuIHRoZSB2YWx1ZSB3b3VsZCBzaG93IHVwIGV2ZW50 dWFsbHkuIFRoaXMgaXMgbm90Cj4gPj4+IHRoZSBjYXNlIHRob3VnaCwgX193YWl0X2Zvcl9yZXF1 ZXN0IHdpbGwgc2VlIHRoZSBzdGFsZSB2YWx1ZQo+ID4+PiBpbmRlZmluaXRlbHkgZXZlbiB0aG91 Z2ggaXQgZ2V0cyB3b2tlbiB1cCBwZXJpb2RpY2FsbHkgYWZ0ZXJ3YXJkcyBieSB0aGUKPiA+Pj4g bG9zdCBJUlEgbG9naWMgKHdpdGggaGFuZ2NoZWNrIGRpc2FibGVkKS4KPiA+Pgo+ID4+IFllYWgs IGJhc2VkIG9uIHlvdXIgd29ya2Fyb3VuZCBpdCBzb3VuZHMgbGlrZSB0aGUgd3JpdGUgZnJvbSB0 aGUgQ1MgaXMKPiA+PiBsYW5kaW5nIGluIG1lbW9yeSBidXQgZmFpbGluZyB0byBpbnZhbGlkYXRl IHRoZSBhc3NvY2lhdGVkIENQVQo+ID4+IGNhY2hlbGluZS4gIEkgYXNzdW1lIG1hcHBpbmcgdGhl IEhXU1AgYXMgdW5jYWNoZWQgYWxzbyB3b3JrcyBhcm91bmQgdGhpcwo+ID4+IGlzc3VlPwo+ID4g Cj4gPiBJIGFzc3VtZSBpdCB3b3VsZCwgYnV0IGl0IHdvdWxkIG9mIGNvdXJzZSBoYXZlIGEgYmln Z2VyIG92ZXJoZWFkLiBCYXNlZAo+ID4gb24gbXkgdGVzdGluZyB0aGUgY29oZXJlbmN5IHByb2Js ZW0gaGFwcGVucyBvbmx5IG9jY2FzaW9uYWxseSwgc28gZm9yCj4gPiB0aGUgcmVzdCBvZiB0aGUg dGltZXMgd2Ugc3RpbGwgd291bGQgd2FudCB0byBiZW5lZml0IGZyb20gY2FjaGVkIHJlYWRzLgo+ ID4gU2VlIGVzcGVjaWFsbHkgX19pOTE1X3NwaW5fcmVxdWVzdCgpLgo+IAo+IFllYWgsIHByZXR0 eSBzdXJlIHdlIHdhbnQgaXQgY2FjaGVkIGdpdmVuIGhvdyBvZnRlbiB3ZSByZWFkIGZyb20gaXQu ICBJCj4gd2FzIGp1c3QgY3VyaW91cyBpZiB0aGUgVUMgbWFwcGluZyB3b3VsZCBhZGRyZXNzIHRo aXMganVzdCB0byBuYXJyb3cKPiB0aGluZ3MgZG93biBldmVuIGZ1cnRoZXIuCgpJIG11c3QgYWRt aXQgdGhhdCBJIGFsc28gcmVtZW1iZXJlZCBvdXIgQTAgcG93ZXItb24gZXZlbnQgd2hlcmUgdGhl CkFuZHJvaWQgZ3V5cyBoYWQgYSBzaW1pbGFyIGlzc3VlIGFuZCBjYW1lIHVwIHdpdGggYSBzb2x1 dGlvbiB0byBtYXAgdGhlCnN0YXR1cyBwYWdlIHVuY2FjaGVkLiBBdCB0aGF0IHRpbWUgd2UgZGlk bid0IHNlZSB0aGlzIHByb2JsZW0gd2l0aCB0aGUKdXBzdHJlYW0ga2VybmVsLiBOb3Qgc3VyZSB3 aGF0IHdhcyB0aGUgZGlmZmVyZW5jZSB0aGVuIGFuZCB3aHkgdGhlCnByb2JsZW0gaXMgYmFjayBu b3csIG1heWJlIHdlIGp1c3QgZGlkbid0IHJ1biB0aGUgdGVzdHMgbG9uZyBlbm91Z2guIFNvCkkn bSBwcmV0dHkgc3VyZSBpdCdzIHRoZSBzYW1lIGlzc3VlLgoKLS1JbXJlCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0 CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=