From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesse Barnes Subject: Re: [PATCH 1/2] drm/i915/bxt: work around HW coherency issue when accessing GPU seqno Date: Wed, 10 Jun 2015 08:10:11 -0700 Message-ID: <55785353.5090803@virtuousgeek.org> 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> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-qg0-f48.google.com (mail-qg0-f48.google.com [209.85.192.48]) by gabe.freedesktop.org (Postfix) with ESMTP id 7013D6E8EC for ; Wed, 10 Jun 2015 08:08:28 -0700 (PDT) Received: by qgg3 with SMTP id 3so17134741qgg.2 for ; Wed, 10 Jun 2015 08:08:28 -0700 (PDT) In-Reply-To: <1433933973.25216.48.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@intel.com, Dave Gordon Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gMDYvMTAvMjAxNSAwMzo1OSBBTSwgSW1yZSBEZWFrIHdyb3RlOgo+IEkgdGhpbmsgdGhlIGRp c2N1c3Npb24gaGVyZSBpcyBhYm91dCB0d28gc2VwYXJhdGUgdGhpbmdzOgo+IDEuIFBvc3NpYmxl IG9yZGVyaW5nIGlzc3VlIGJldHdlZW4gdGhlIHNlcW5vIHN0b3JlIGFuZCB0aGUgY29tcGxldGlv bgo+IGludGVycnVwdAo+IDIuIENvaGVyZW5jeSBpc3N1ZSB0aGF0IGxlYXZlcyB0aGUgQ1BVIHdp dGggYSBzdGFsZSB2aWV3IG9mIHRoZSBzZXFubwo+IGluZGVmaW5pdGVseSwgd2hpY2ggdGhpcyBw YXRjaCB3b3JrcyBhcm91bmQKPiAKPiBJJ20gY29uZmlkZW50IHRoYXQgaW4gbXkgY2FzZSB0aGUg cHJvYmxlbSBpcyBub3QgZHVlIHRvIG9yZGVyaW5nLiBJZiBpdAo+IHdhcyAib25seSIgb3JkZXJp bmcgdGhlbiB0aGUgdmFsdWUgd291bGQgc2hvdyB1cCBldmVudHVhbGx5LiBUaGlzIGlzIG5vdAo+ IHRoZSBjYXNlIHRob3VnaCwgX193YWl0X2Zvcl9yZXF1ZXN0IHdpbGwgc2VlIHRoZSBzdGFsZSB2 YWx1ZQo+IGluZGVmaW5pdGVseSBldmVuIHRob3VnaCBpdCBnZXRzIHdva2VuIHVwIHBlcmlvZGlj YWxseSBhZnRlcndhcmRzIGJ5IHRoZQo+IGxvc3QgSVJRIGxvZ2ljICh3aXRoIGhhbmdjaGVjayBk aXNhYmxlZCkuCgpZZWFoLCBiYXNlZCBvbiB5b3VyIHdvcmthcm91bmQgaXQgc291bmRzIGxpa2Ug dGhlIHdyaXRlIGZyb20gdGhlIENTIGlzCmxhbmRpbmcgaW4gbWVtb3J5IGJ1dCBmYWlsaW5nIHRv IGludmFsaWRhdGUgdGhlIGFzc29jaWF0ZWQgQ1BVCmNhY2hlbGluZS4gIEkgYXNzdW1lIG1hcHBp bmcgdGhlIEhXU1AgYXMgdW5jYWNoZWQgYWxzbyB3b3JrcyBhcm91bmQgdGhpcwppc3N1ZT8KCkkg d29uZGVyIGlmIHRoaXMgaXMganVzdCBhbiBpc3N1ZSB3aXRoIEdHVFQgbWFwcGluZ3Mgb24gQlhU LiAgSWYgd2UgaGFkCnBlciBjb250ZXh0IEhTV1BzIHVzaW5nIFBQR1RUIChhbmQgbWF5YmUgZXZl biA0OCBiaXQgUFBHVFQpIG1hcHBpbmdzLAp0aGUgc25vb3AgbWF5IGJlIHBlcmZvcm1lZCBjb3Jy ZWN0bHkuLi4gIExvb2tzIGxpa2Ugd2UgZG9uJ3QgaGF2ZSBhCnN0b3JlX2R3b3JkIHZhcmlhbnQg Zm9yIGV4cGxpY2l0IGNvaGVyZW50IG9yIGluY29oZXJlbnQgYnVmZmVyIHdyaXRlcwoodGhvdWdo IGl0IGRvZXMgdGVzdCBQUEdUVCB3cml0ZXMgYXQgbGVhc3QpOyB0aGF0IHdvdWxkIG1ha2UgdGhp cyBlYXN5CnRvIHRlc3QuCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9w Lm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwt Z2Z4Cg==