From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: Re: [PATCH v2 1/2] drm/i915/bxt: work around HW coherency issue when accessing GPU seqno Date: Fri, 14 Aug 2015 16:31:41 +0300 Message-ID: <1439559101.31146.14.camel@intel.com> References: <1439555937-8016-1-git-send-email-imre.deak@intel.com> <1439555937-8016-2-git-send-email-imre.deak@intel.com> <20150814131233.GE27217@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 mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id ACAD36EF52 for ; Fri, 14 Aug 2015 06:31:44 -0700 (PDT) In-Reply-To: <20150814131233.GE27217@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: Jani Nikula , intel-gfx@lists.freedesktop.org, Mika Kuoppala List-Id: intel-gfx@lists.freedesktop.org T24gcGUsIDIwMTUtMDgtMTQgYXQgMTQ6MTIgKzAxMDAsIENocmlzIFdpbHNvbiB3cm90ZToKPiBP biBGcmksIEF1ZyAxNCwgMjAxNSBhdCAwMzozODo1NlBNICswMzAwLCBJbXJlIERlYWsgd3JvdGU6 Cj4gPiBCeSBydW5uaW5nIGlndC9zdG9yZV9kd29yZF9sb29wX3JlbmRlciBvbiBCWFQgd2UgY2Fu IGhpdCBhIGNvaGVyZW5jeQo+ID4gcHJvYmxlbSB3aGVyZSB0aGUgc2Vxbm8gd3JpdHRlbiBhdCBH UFUgY29tbWFuZCBjb21wbGV0aW9uIHRpbWUgaXMgbm90Cj4gPiBzZWVuIGJ5IHRoZSBDUFUuIFRo aXMgcmVzdWx0cyBpbiBfX2k5MTVfd2FpdF9yZXF1ZXN0IHNlZWluZyB0aGUgc3RhbGUKPiA+IHNl cW5vIGFuZCBub3QgY29tcGxldGluZyB0aGUgcmVxdWVzdCAobm90IGNvbnNpZGVyaW5nIHRoZSBs b3N0Cj4gPiBpbnRlcnJ1cHQvR1BVIHJlc2V0IG1lY2hhbmlzbSkuIEkgYWxzbyB2ZXJpZmllZCB0 aGF0IHRoaXMgaXNuJ3QgYSBjYXNlCj4gPiBvZiBhIGxvc3QgaW50ZXJydXB0LCBvciB0aGF0IHRo ZSBjb21tYW5kIGRpZG4ndCBjb21wbGV0ZSBzb21laG93OiB3aGVuCj4gPiB0aGUgY29oZXJlbmN5 IGlzc3VlIG9jY3VyZWQgSSByZWFkIHRoZSBzZXFubyB2aWEgYW4gdW5jYWNoZWQgR1RUIG1hcHBp bmcKPiA+IHRvby4gV2hpbGUgdGhlIGNhY2hlZCB2ZXJzaW9uIG9mIHRoZSBzZXFubyBzdGlsbCBz aG93ZWQgdGhlIHN0YWxlIHZhbHVlCj4gPiB0aGUgb25lIHJlYWQgdmlhIHRoZSB1bmNhY2hlZCBt YXBwaW5nIHdhcyB0aGUgY29ycmVjdCBvbmUuCj4gPiAKPiA+IFdvcmsgYXJvdW5kIHRoaXMgaXNz dWUgYnkgY2xmbHVzaGluZyB0aGUgY29ycmVzcG9uZGluZyBDUFUgY2FjaGVsaW5lCj4gPiBmb2xs b3dpbmcgYW55IHN0b3JlIG9mIHRoZSBzZXFubyBhbmQgcHJlY2VkaW5nIGFueSByZWFkaW5nIG9m IGl0LiBXaGVuCj4gPiByZWFkaW5nIGl0IGRvIHRoaXMgb25seSB3aGVuIHRoZSBjYWxsZXIgZXhw ZWN0cyBhIGNvaGVyZW50IHZpZXcuCj4gPiAKPiA+IHYyOgo+ID4gLSBmaXggdXNpbmcgdGhlIHBy b3BlciBsb2dpY2FsICYmIGluc3RlYWQgb2YgYSBiaXR3aXNlICYgKEphbmksIE1pa2EpCj4gPiAt IGxpbWl0IHRoZSB3b3JrYXJvdW5kIHRvIEEgc3RlcHBpbmcsIG9uIGxhdGVyIHN0ZXBwaW5ncyB0 aGlzIEhXIGlzc3VlCj4gPiAgIGlzIGZpeGVkCj4gCj4gV2UgaGF2ZSB2ZnVuY3MgaW4gb3JkZXIg dG8gYXZvaWQgdGhlIHBvaW50ZXIgZGFuY2UgKGFuZCBib3kgaXMgaXQgYQo+IHByZXR0eSBhbmQg cXVpdGUgY29udm9sdXRlZCBkYW5jZSkuCgpPaywgSSdsbCBhZGQgbmV3IGdldF9zZXFuby9zZXRf c2Vxbm8gdmZ1bmNzLgoKPiAtQ2hyaXMKPiAKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0 cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp c3RpbmZvL2ludGVsLWdmeAo=