From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dave Gordon Subject: Re: [PATCH 1/2] drm/i915/bxt: work around HW coherency issue when accessing GPU seqno Date: Mon, 08 Jun 2015 18:08:00 +0100 Message-ID: <5575CBF0.5090109@intel.com> References: <1433780924-7673-1-git-send-email-imre.deak@intel.com> <1433780924-7673-2-git-send-email-imre.deak@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id 7033F6E685 for ; Mon, 8 Jun 2015 10:08:02 -0700 (PDT) In-Reply-To: <1433780924-7673-2-git-send-email-imre.deak@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-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gMDgvMDYvMTUgMTc6MjgsIEltcmUgRGVhayB3cm90ZToKPiBCeSBydW5uaW5nIGlndC9zdG9y ZV9kd29yZF9sb29wX3JlbmRlciBvbiBCWFQgd2UgY2FuIGhpdCBhIGNvaGVyZW5jeQo+IHByb2Js ZW0gd2hlcmUgdGhlIHNlcW5vIHdyaXR0ZW4gYXQgR1BVIGNvbW1hbmQgY29tcGxldGlvbiB0aW1l IGlzIG5vdAo+IHNlZW4gYnkgdGhlIENQVS4gVGhpcyByZXN1bHRzIGluIF9faTkxNV93YWl0X3Jl cXVlc3Qgc2VlaW5nIHRoZSBzdGFsZQo+IHNlcW5vIGFuZCBub3QgY29tcGxldGluZyB0aGUgcmVx dWVzdCAobm90IGNvbnNpZGVyaW5nIHRoZSBsb3N0Cj4gaW50ZXJydXB0L0dQVSByZXNldCBtZWNo YW5pc20pLiBJIGFsc28gdmVyaWZpZWQgdGhhdCB0aGlzIGlzbid0IGEgY2FzZQo+IG9mIGEgbG9z dCBpbnRlcnJ1cHQsIG9yIHRoYXQgdGhlIGNvbW1hbmQgZGlkbid0IGNvbXBsZXRlIHNvbWVob3c6 IHdoZW4KPiB0aGUgY29oZXJlbmN5IGlzc3VlIG9jY3VyZWQgSSByZWFkIHRoZSBzZXFubyB2aWEg YW4gdW5jYWNoZWQgR1RUIG1hcHBpbmcKPiB0b28uIFdoaWxlIHRoZSBjYWNoZWQgdmVyc2lvbiBv ZiB0aGUgc2Vxbm8gc3RpbGwgc2hvd2VkIHRoZSBzdGFsZSB2YWx1ZQo+IHRoZSBvbmUgcmVhZCB2 aWEgdGhlIHVuY2FjaGVkIG1hcHBpbmcgd2FzIHRoZSBjb3JyZWN0IG9uZS4KPiAKPiBXb3JrIGFy b3VuZCB0aGlzIGlzc3VlIGJ5IGNsZmx1c2hpbmcgdGhlIGNvcnJlc3BvbmRpbmcgQ1BVIGNhY2hl bGluZQo+IGZvbGxvd2luZyBhbnkgc3RvcmUgb2YgdGhlIHNlcW5vIGFuZCBwcmVjZWRpbmcgYW55 IHJlYWRpbmcgb2YgaXQuIFdoZW4KPiByZWFkaW5nIGl0IGRvIHRoaXMgb25seSB3aGVuIHRoZSBj YWxsZXIgZXhwZWN0cyBhIGNvaGVyZW50IHZpZXcuCj4gCj4gVGVzdGNhc2U6IGlndC9zdG9yZV9k d29yZF9sb29wX3JlbmRlcgo+IFNpZ25lZC1vZmYtYnk6IEltcmUgRGVhayA8aW1yZS5kZWFrQGlu dGVsLmNvbT4KCk5vdCBuZWNlc3NhcmlseSBhIGN1cmUgZm9yIHRoaXMsIGJ1dCBCU3BlYyBzYXlz IG9mIE1JX1NUT1JFX0RBVEFfSU1NCihhbmQgTUlfU1RPUkVfREFUQV9JTkRFWCk6CgoJVGhpcyBj b21tYW5kIHNpbXBseSBpbml0aWF0ZXMgdGhlIHdyaXRlIG9wZXJhdGlvbiB3aXRoCgljb21tYW5k IGV4ZWN1dGlvbiBwcm9jZWVkaW5nIG5vcm1hbGx5LiBBbHRob3VnaCB0aGUgd3JpdGUKCW9wZXJh dGlvbiBpcyBndWFyYW50ZWVkIHRvIGNvbXBsZXRlICJldmVudHVhbGx5IiwgdGhlcmUgaXMKCW5v IG1lY2hhbmlzbSB0byBzeW5jaHJvbml6ZSBjb21tYW5kIGV4ZWN1dGlvbiB3aXRoIHRoZQoJY29t cGxldGlvbiAob3IgZXZlbiBpbml0aWF0aW9uKSBvZiB0aGVzZSBvcGVyYXRpb25zLgoKU28gc2hv dWxkbid0IHdlIHVzZSBNSV9GTFVTSF9EVyBvciBQSVBFX0NPTlRST0wgdG8gdXBkYXRlIHRoZSBz ZXFubyBpbgp0aGUgSFdTUCBpbnN0ZWFkPwoKLkRhdmUuCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4 QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxt YW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==