From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH v2 2/2] drm/i915/bxt: Fix inadvertent CPU snooping due to incorrect MOCS config Date: Thu, 28 Apr 2016 16:48:37 +0200 Message-ID: <20160428144837.GF5784@phenom.ffwll.local> References: <1461674662-29353-1-git-send-email-imre.deak@intel.com> <1461674662-29353-2-git-send-email-imre.deak@intel.com> <20160426125726.GJ27856@nuc-i3427.alporthouse.com> <1461676675.18080.18.camel@intel.com> <20160426132321.GL27856@nuc-i3427.alporthouse.com> <571F7AA3.8080509@intel.com> <20160426144201.GP27856@nuc-i3427.alporthouse.com> <1461686466.18080.64.camel@intel.com> <20160428081731.GP2558@phenom.ffwll.local> <1461832735.9253.17.camel@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm0-x244.google.com (mail-wm0-x244.google.com [IPv6:2a00:1450:400c:c09::244]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2C3EE6E3BE for ; Thu, 28 Apr 2016 14:48:42 +0000 (UTC) Received: by mail-wm0-x244.google.com with SMTP id e201so24061451wme.2 for ; Thu, 28 Apr 2016 07:48:42 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1461832735.9253.17.camel@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Imre Deak Cc: Eero Tamminen , Michael T Frederick , Valtteri Rantala , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBBcHIgMjgsIDIwMTYgYXQgMTE6Mzg6NTVBTSArMDMwMCwgSW1yZSBEZWFrIHdyb3Rl Ogo+IE9uIHRvLCAyMDE2LTA0LTI4IGF0IDEwOjE3ICswMjAwLCBEYW5pZWwgVmV0dGVyIHdyb3Rl Ogo+ID4gT24gVHVlLCBBcHIgMjYsIDIwMTYgYXQgMDc6MDE6MDZQTSArMDMwMCwgSW1yZSBEZWFr IHdyb3RlOgo+ID4gPiBPbiB0aSwgMjAxNi0wNC0yNiBhdCAxNTo0MiArMDEwMCwgQ2hyaXMgV2ls c29uIHdyb3RlOgo+ID4gPiA+IE9uIFR1ZSwgQXByIDI2LCAyMDE2IGF0IDA1OjI2OjQzUE0gKzAz MDAsIEVlcm8gVGFtbWluZW4gd3JvdGU6Cj4gPiA+ID4gPiBIaSwKPiA+ID4gPiA+IAo+ID4gPiA+ ID4gT24gMjYuMDQuMjAxNiAxNjoyMywgQ2hyaXMgV2lsc29uIHdyb3RlOgo+ID4gPiA+ID4gPiBP biBUdWUsIEFwciAyNiwgMjAxNiBhdCAwNDoxNzo1NVBNICswMzAwLCBJbXJlIERlYWsgd3JvdGU6 Cj4gPiA+ID4gPiA+ID4gT24gdGksIDIwMTYtMDQtMjYgYXQgMTM6NTcgKzAxMDAsIENocmlzIFdp bHNvbiB3cm90ZToKPiA+ID4gPiA+ID4gPiA+IE9uIFR1ZSwgQXByIDI2LCAyMDE2IGF0IDAzOjQ0 OjIyUE0gKzAzMDAsIEltcmUgRGVhayB3cm90ZToKPiA+ID4gPiA+ID4gPiA+ID4gU2V0dGluZyBh IHdyaXRlLWJhY2sgY2FjaGUgcG9saWN5IGluIHRoZSBNT0NTIGVudHJ5Cj4gPiA+ID4gPiA+ID4g PiA+IGRlZmluaXRpb24gYWxzbwo+ID4gPiA+ID4gPiA+ID4gPiBpbXBsaWVzIHNub29waW5nLCB3 aGljaCBoYXMgYSBjb25zaWRlcmFibGUgb3ZlcmhlYWQuIFRoaXMKPiA+ID4gPiA+ID4gPiA+ID4g aXMKPiA+ID4gPiA+ID4gPiA+ID4gdW5leHBlY3RlZCBmb3IgYSBmZXcgcmVhc29uczoKPiA+ID4g PiA+ID4gPiA+IAo+ID4gPiA+ID4gPiA+ID4gSWYgaXQgaXMgc25vb3BpbmcsIHRoZW4gSSBkb24n dCBzZWUgd2h5IGl0IGlzIHVuZGVzaXJhYmxlIHRvCj4gPiA+ID4gPiA+ID4gPiBoYXZlIGl0Cj4g PiA+ID4gPiA+ID4gPiBhdmFpbGFibGUgaW4gYSBtb2NzIHNldHRpbmcuIElmIGl0IGlzIGJvZ3Vz IGFuZCB0aGUgYml0IGlzCj4gPiA+ID4gPiA+ID4gPiB1bmRlZmluZWQsCj4gPiA+ID4gPiA+ID4g PiB0aGVuIGJ5IGFsbCBtZWFucyByZW1vdmUgaXQuCj4gPiA+ID4gPiA+ID4gCj4gPiA+ID4gPiA+ ID4gTm9uZSBvZiB0aGVzZSBlbnRyaWVzIGFyZSB1c2VkIGFsb25lIGZvciBjb2hlcmVudCBzdXJm YWNlcy4gRm9yCj4gPiA+ID4gPiA+ID4gdGhhdAo+ID4gPiA+ID4gPiA+IHRoZSBhcHBsaWNhdGlv biB3b3VsZCBoYXZlIHRvIHVzZSBlbnRyeSBpbmRleCMxIG9yICMyIF9hbmRfCj4gPiA+ID4gPiA+ ID4gY2FsbCB0aGUKPiA+ID4gPiA+ID4gPiBzZXQgY2FjaGluZyBJT0NUTCB0byBzZXQgdGhlIGNv cnJlc3BvbmRpbmcgYnVmZmVyIHRvIGJlIGNhY2hlZC4KPiA+ID4gPiA+ID4gCj4gPiA+ID4gPiA+ IE5vLCB0aGUgYXBwbGljYXRpb24gZG9lc24ndC4gVGhlcmUgYXJlIHN1ZmZpY2VudCBpbnRlcmZh Y2VzCj4gPiA+ID4gPiA+IGV4cG9zZWQgdGhhdAo+ID4gPiA+ID4gPiB1c2Vyc3BhY2UgY2FuIGJ5 cGFzcyB0aGUga2VybmVsIGlmIGl0IHNvIGRlc2lyZWQuCj4gPiA+ID4gPiA+IAo+ID4gPiA+ID4g PiA+IFRoZQo+ID4gPiA+ID4gPiA+IHByb2JsZW0gaXMgdGhhdCB3aXRob3V0IHNldHRpbmcgdGhl IGJ1ZmZlciB0byBiZSBjYWNoZWFibGUgdGhlCj4gPiA+ID4gPiA+ID4gZXhwZWN0YXRpb24gaXMg dGhhdCB3ZSB3b24ndCBiZSBzbm9vcGluZyBhbmQgaW5jdXIgdGhlCj4gPiA+ID4gPiA+ID4gY29y cmVzcG9uZGluZwo+ID4gPiA+ID4gPiA+IG92ZXJoZWFkLiBUaGlzIGlzIHdoYXQgdGhpcyBwYXRj aCBhZGRyZXNzZXMuCj4gPiA+ID4gPiA+IAo+ID4gPiA+ID4gPiBOb3QgdHJ1ZS4KPiA+ID4gPiA+ ID4gCj4gPiA+ID4gPiA+ID4gVGhlIGJpdCBpcyBhbHNvIGJvZ3VzLCBpZiB3ZSB3YW50ZWQgc25v b3BpbmcgdmlhIE1PQ1Mgd2UnZCB1c2UKPiA+ID4gPiA+ID4gPiB0aGUKPiA+ID4gPiA+ID4gPiBk ZWRpY2F0ZWQgSFcgZmxhZyBmb3IgdGhhdC4KPiA+ID4gPiA+ID4gCj4gPiA+ID4gPiA+IEJ1dCB5 b3Uga2VlcCBzYXlpbmcgdGhpcyBiaXQgKmVuYWJsZXMqIHNub29waW5nLiBTbyBlaXRoZXIgaXQK PiA+ID4gPiA+ID4gZG9lcyBvciBpdAo+ID4gPiA+ID4gPiBkb2Vzbid0Lgo+ID4gPiA+ID4gPiAK PiA+ID4gPiA+ID4gPiBJZiB3ZSB3YW50ZWQgdG8gaGF2ZSBhIHNub29waW5nIE1PQ1MgZW50cnkg d2Ugc2hvdWxkIGFkZCB0aGF0Cj4gPiA+ID4gPiA+ID4gc2VwYXJhdGVseSAoYXMgYSBmb3J0aCBl bnRyeSksIGJ1dCB3ZSdkIG5lZWQgdGhpcyBjaGFuZ2UgYXMgYQo+ID4gPiA+ID4gPiA+IGZpeCBm b3IKPiA+ID4gPiA+ID4gPiBjdXJyZW50IHVzZXJzLgo+ID4gPiA+ID4gPiAKPiA+ID4gPiA+ID4g VGhlIGN1cnJlbnQgdXNlcnMgd2hvIGFyZSBnZXR0aW5nIHdoYXQgdGhleSByZXF1ZXN0IGJ1dCBk b24ndAo+ID4gPiA+ID4gPiBrbm93IHdoYXQKPiA+ID4gPiA+ID4gdGhleSB3ZXJlIHJlcXVlc3Rp bmc/Cj4gPiA+ID4gPiAKPiA+ID4gPiA+IFdoYXQgdGhpcyBrZXJuZWwgQUJJIChpbmRleCBlbnRy eSAjMikgaGFzIGJlZW4gYWdyZWVkICYgZG9jdW1lbnRlZAo+ID4gPiA+ID4gdG8gcHJvdmlkZT8K PiA+ID4gPiAKPiA+ID4gPiBUaGUgQUJJIGlzIHdoYXQgd2UgYWdyZWUgbWFrZXMgc2Vuc2UgYmV0 d2VlbiBoYXJkd2FyZSAvIGtlcm5lbCAvCj4gPiA+ID4gdXNlcnNwYWNlLCBhbmQgdGhlbiB3ZSBz dGljayB0byBpdC4KPiA+ID4gPiAKPiA+ID4gPiA+IEkgdGhvdWdodCB0aGlzIGVudHJ5IGlzIHN1 cHBvc2VkIHRvIHJlcGxhY2UgdGhlIHdyaXRlYmFjayBMTEMvZUxMQwo+ID4gPiA+ID4gY2FjaGUg TU9DUyBzZXR0aW5nIE1lc2EgaXMgdXNpbmcgb24gKGUuZy4gQkRXKSB0byBzcGVlZCB1cCBhY2Nl c3Nlcwo+ID4gPiA+ID4gdG8gYSBtZW1vcnkgYXJlYSB3aGljaCBpdCBrbm93cyBhbHdheXMgdG8g YmUgYWNjZXNzZWQgc28gdGhhdCBpdAo+ID4gPiA+ID4gY2FuCj4gPiA+ID4gPiBiZSBjYWNoZWQu Cj4gPiA+ID4gCj4gPiA+ID4gV2hpY2ggaXQgZG9lcy4uLiBPbmx5IGl0IHNwZWVkcyB1cyB3cml0 ZWJhY2sgZnJvbSB0aGUgQ1BVLCBub3QgdGhlCj4gPiA+ID4gR1BVLiA7KQo+ID4gPiA+IAo+ID4g PiA+IFRoZSBjb25mdXNpb24gc2VlbXMgdG8gYmUgaW4gbWlzdGFraW5nICFsbGMgZm9yIGxsYy4g V2UgaGF2ZSB0byBjb21lCj4gPiA+ID4gdG8KPiA+ID4gPiBzb21lIGFncmVlbWVudCBvbiB3aGV0 aGVyIGl0IG1ha2VzIHNlbnNlIGhhdmluZyBtdWx0aXBsZSBlbnRyaWVzIGZvcgo+ID4gPiA+IHRo ZQo+ID4gPiA+IHNhbWUgZm9sbG93cy1QVEUgbW9jcyBvciB3aGV0aGVyIGl0IG1ha2VzIG1vcmUg c2Vuc2UgdG8gZXhwb3NlIHRoZSBodwo+ID4gPiA+IGNhcGFiaWx0aWVzLgo+ID4gPiAKPiA+ID4g Tm90ZSB0aGF0IHdlIGNhbid0IGp1c3Qgc2F5IHRvIE1lc2EgdG8gdXNlIGluZGV4ICMwIG9uIEJY VCBpbnN0ZWFkIG9mCj4gPiA+IGluZGV4ICMyLCBzaW5jZSBpbmRleCAjMCB0dXJucyBvZmYgY2Fj aGluZyBpbiBHUFUgTDMsIHNvIHdlJ2QgaGF2ZSB0bwo+ID4gPiBhbHNvIHJlZGVmaW5lIHRoYXQg dG8gYmUgTDMgY2FjaGVkLiBBbmQgSSBkb24ndCBrbm93IHdoYXQgdHVybmluZyBvbiBMMwo+ID4g PiBjYWNoaW5nIGZvciBpbmRleCAjMCB3b3VsZCBicmVhaywgSSB3b3VsZCByYXRoZXIgYXZvaWQg ZG9pbmcgdGhhdC4gSW1vCj4gPiA+IGRlZmluaW5nIHRoZSBlbnRyaWVzIHRoZSBmb2xsb3dpbmcg d2F5IHdvdWxkIGFsbG93IHVzIHRvIHVzZSB0aGUgc2FtZQo+ID4gPiBpbmRleGVzIG9uIEdFTjkg cmVnYXJkbGVzcyBvZiBpdCBiZWluZyBTS0wgb3IgQlhUOgo+ID4gPiAjMDogdW5jYWNoZWQgKG5l aXRoZXIgaW4gTDMgbm9yIGluIChlKUxMQykKPiA+ID4gIzE6IFBURSBwYXNzdGhyb3VnaAo+ID4g Cj4gPiBTbyBvdXIgcmVuZGVyY3B5IGluIGlndCBkb2VzIHNldCBNT0NTIGVudHJ5IDEuIE9yIGhv dyBleGFjdGx5IGRvIGFsbCB0aGUKPiA+IHNldF9jYWNoaW5nIHZzLiByZW5kZXJjcHkgdGVzdHMg d2UgY3VycmVudGx5IGhhdmUgcGFzcz8gSnVzdCBub3Q/Cj4gCj4gV2UgZG9uJ3QgaGF2ZSB0ZXN0 cyBmb3IgY29oZXJlbnQgc3VyZmFjZXMuIFRoZSBjdXJyZW50IHJlbmRlcmNweSB0ZXN0Cj4ganVz dCB1c2VzIHVuY2FjaGVkIGJ1ZmZlcnMsIHNvIHRoZXkgYXJlIGZsdXNoZWQgYmVmb3JlIGNoZWNr aW5nIHRoZQo+IHJlc3VsdC4gSSBjb3VsZCBhZGQgYSBuZXcgc3VidGVzdCB0byByZW5kZXJjcHkg dG8gdGVzdCB3aXRoIGEKPiBjYWNoZWQvY29oZXJlbnQgc3VyZmFjZS4KPiAKPiA+IEFsc28sIHlv dSdyZSBndWFyYW5hdGVlaW5nIHRoYXQgb3BlbmNsL2xpYnZhIGRvbid0IHNjcmV3IHRoaXMgdXAg ZWl0aGVyPwo+IAo+IElmIHRoZXkgZG9uJ3Qgc2V0IHRoZSBnaXZlbiBidWZmZXIgdG8gYmUgY2Fj aGVkIHZpYSB0aGUgc2V0X2NhY2hpbmcKPiBJT0NUTCAoYXMgYSBjb25zZXF1ZW5jZSBtYWtpbmcg dGhlbSBjb2hlcmVudCkgdGhleSBhcmUgYWxyZWFkeSBzY3Jld2VkCj4gb24gQ0hWLiBJZiB0aGV5 IGNhbGwgdGhlIElPQ1RMIHRoZXkgYXJlIGZpbmUgb24gQlhUIHRvby4KCldlIGRvIGltcGxpY2l0 IHNldF9jYWNoaW5nIHdoZW4gZGlzcGxheWluZyBzb21ldGhpbmcgdG8gc29tZXRoaW5nCmNvaGVy ZW50LiBUbyBtYWtlIHRoYXQgd29yayB1c2Vyc3BhY2Ugc2hvdWxkIHVzZSB0aGUgInVzZSBQVEUi IG1vZGUgYnkKZGVmYXVsdCwgZXhjZXB0IHdoZW4gdGhleSByZWFsbHkga25vdyB3aGF0IHRoZXkn cmUgZG9pbmcuIFRoYXQncyBhbHNvIHRoZQptb2RlIHRoYXQncyBzdXBwb3NlZCB0byBnaXZlIHlv dSB0aGUgbW9zdCByZWFzb25hYmxlIHBlcmZvcm1hbmNlLiBCdXQKc29tZWhvdyB0aGF0IG1vZGUg ZW5kZWQgdXAgaW4gTU9DUyBlbnRyeSAxLCBzbyBwcmV0dHkgbXVjaCBndWFyYW50ZWVkCnVzZXJz cGFjZSB3aWxsIGdldCBpdCB3cm9uZy4gTWVzYSBqdXN0IGhpdCBhIHBlcmYgc25hZywgYnV0IG1p Z2h0IGFzIHdlbGwKaGF2ZSBiZWVuIHZpc3VhbCBjb3JydXB0aW9uLiBJIHRoaW5rIGl0J2QgYmUg YSBsb3Qgc2FmZSB0byBtYWtlICJ1c2UgUFRFIgplbnRyeSAwLgotRGFuaWVsCgo+ID4gSXQncyBV QUJJLCBhbmQgd2UndmUgYm90Y2hlZCBpdC4gU21lbGxzIGxpa2Ugd2UgbmVlZCB0byBoYXZlIGEg bG90IG1vcmUKPiA+IHNvbGlkIHN0b3J5IGFuZCBtYWtlIHN1cmUgd2UgZ2V0IHRoaXMgcmlnaHQg dGhpcyB0aW1lIGFyb3VuZC4gVGhlcmUncyBhbHNvCj4gPiB0aGUgImhvdyBkb2VzIGRtYS1idWYg bW1hcCBzdXBwb3J0IGZpdCBpbiIgcXVlc3Rpb24uCj4gPiAKPiA+IE9oIGFuZCBub3BlLCBub25l IG9mIHRoZSByZWxldmFudCB0ZXN0Y2FzZXMgYXJlIGluIEJBVCBhdCBhbGwuCj4gPiAKPiA+ID4g IzI6IGNhY2hlZCBldmVyeXdoZXJlIChMMyArIChlKUxMQyBpZiBpdCBleGlzdHMpLCBub24tY29o ZXJlbnQKPiA+ID4gIzM6IGNhY2hlZCBldmVyeXdoZXJlLCBjb2hlcmVudAo+ID4gPiAKPiA+ID4g SSdtIG5vdCBzdXJlIGlmIHRoZXJlIGlzIGV2ZW4gYSB1c2VyIGZvciBjb2hlcmVudCBzdXJmYWNl cyBhdG0sIHNvIHRoZW4KPiA+ID4gd2UgY291bGQgZGVsYXkgYWRkaW5nICMzIHVudGlsIGl0J3Mg cmVhbGx5IG5lZWRlZC4KPiA+IAo+ID4gVGhlIHByb2JsZW0gd2l0aCB0aGUgYWJvdmUgaXMgdGhh dCB0aGUgdmFyaW91cyBhY2Nlc3MgcGF0aHMgb24gU29DCj4gPiAod2l0aG91dCBMTEMpIGFuZCBi aWcgY29yZSAod2l0aCBsbGMpIGFyZSBtYXNzaXZlbHkgZGlmZmVyZW50LiBZb3UgbmVlZAo+ID4g bG90cyBvZiBkaWZmZXJlbnQgY2FzZXMgaW4gdXBsb2FkL2Rvd25sb2FkIHBhdGhzIGZvciBtYXgg c3BlZWQgYW55d2F5Lgo+IAo+IFRoZSBjdXJyZW50IGFzc3VtcHRpb24gZXZlcnl3aGVyZSBpbiB1 c2VyIHNwYWNlIGlzIHRoZSBhYm92ZSB0aHJlZQo+IGVudHJpZXMgd2l0aCB0aGVpciBkZWZpbml0 aW9uIGFib3ZlIGFzIGZhciBhcyBJIGtub3cuIFRoZXJlIGFyZSBubwo+IHVzZXJzIHRoYXQgd291 bGQgdXNlIGEgTU9DUyBlbnRyeSB0byBnZXQgYSBjb2hlcmVudCBzdXJmYWNlLCB3ZSBjb3VsZAo+ IGFkZCB0aGF0IGFzIGEgNHRoIGVudHJ5IG9uY2UgYSB1c2VyIGFyaXNlcy4KLS0gCkRhbmllbCBW ZXR0ZXIKU29mdHdhcmUgRW5naW5lZXIsIEludGVsIENvcnBvcmF0aW9uCmh0dHA6Ly9ibG9nLmZm d2xsLmNoCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCklu dGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRw czovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=