From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH v2] drm/i915: Insert a command barrier on BLT/BSD cache flushes Date: Mon, 09 Feb 2015 20:15:22 +0200 Message-ID: <87twyv0x51.fsf@intel.com> References: <1421934120-21038-1-git-send-email-chris@chris-wilson.co.uk> <87386f2hye.fsf@intel.com> <20150209160709.GC9837@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTP id E2C0D6E56C for ; Mon, 9 Feb 2015 10:16:08 -0800 (PST) In-Reply-To: <20150209160709.GC9837@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: intel-gfx@lists.freedesktop.org, stable@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCAwOSBGZWIgMjAxNSwgQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28u dWs+IHdyb3RlOgo+IE9uIE1vbiwgRmViIDA5LCAyMDE1IGF0IDA2OjAwOjI1UE0gKzAyMDAsIEph bmkgTmlrdWxhIHdyb3RlOgo+PiBPbiBUaHUsIDIyIEphbiAyMDE1LCBDaHJpcyBXaWxzb24gPGNo cmlzQGNocmlzLXdpbHNvbi5jby51az4gd3JvdGU6Cj4+ID4gVGhpcyBsb29rZWQgbGlrZSBhbiBv ZGQgcmVncmVzc2lvbiBmcm9tCj4+ID4KPj4gPiBjb21taXQgZWM1Y2MwZjliMDE5YWY5NWU0NTcx YTlmYTE2MmQ5NDI5NGM4ZDkwYgo+PiA+IEF1dGhvcjogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJp cy13aWxzb24uY28udWs+Cj4+ID4gRGF0ZTogICBUaHUgSnVuIDEyIDEwOjI4OjU1IDIwMTQgKzAx MDAKPj4gPgo+PiA+ICAgICBkcm0vaTkxNTogUmVzdHJpY3QgR1BVIGJvb3N0IHRvIHRoZSBSQ1Mg ZW5naW5lCj4+ID4KPj4gPiBidXQgaW4gcmVhbGl0eSBpdCB1bmRlcmNvdmVyZWQgYSBtdWNoIG9s ZGVyIGNvaGVyZW5jeSBidWcuIFRoZSBpc3N1ZSB0aGF0Cj4+ID4gYm9vc3RpbmcgdGhlIEdQVSBm cmVxdWVuY3kgb24gdGhlIEJDUyByaW5nIHdhcyBtYXNraW5nIHdhcyB0aGF0IHdlIGNvdWxkCj4+ ID4gd2FrZSB0aGUgQ1BVIHVwIGFmdGVyIGNvbXBsZXRpb24gb2YgYSBCQ1MgYmF0Y2ggYW5kIGlu c3BlY3QgbWVtb3J5IHByaW9yCj4+ID4gdG8gdGhlIHdyaXRlIGNhY2hlIGJlaW5nIGZ1bGx5IGV2 aWN0ZWQuIEluIG9yZGVyIHRvIHNlcmlhbGlzZSB0aGUKPj4gPiBicmVhZGNydW1iIGludGVycnVw dCAoYW5kIHNvIGVuc3VyZSB0aGF0IHRoZSBDUFUncyB2aWV3IG9mIG1lbW9yeSBpcwo+PiA+IGNv aGVyZW50KSB3ZSBuZWVkIHRvIHBlcmZvcm0gYSBwb3N0LXN5bmMgb3BlcmF0aW9uIGluIHRoZSBN SV9GTFVTSF9EVy4KPj4gPgo+PiA+IHYyOiBGaXggYWxsIHRoZSBNSV9GTFVTSF9EVyAoYnNkIHBs dXMgdGhlIGR1cGxpY2F0aW9uIGluIGV4ZWNsaXN0cykuCj4+ID4KPj4gPiBUZXN0Y2FzZTogZ3B1 WC1yY3MtZ3B1LXJlYWQtYWZ0ZXItd3JpdGUKPj4gPiBTaWduZWQtb2ZmLWJ5OiBDaHJpcyBXaWxz b24gPGNocmlzQGNocmlzLXdpbHNvbi5jby51az4KPj4gPiBDYzogc3RhYmxlQHZnZXIua2VybmVs Lm9yZwo+PiA+IEFja2VkLWJ5OiBEYW5pZWwgVmV0dGVyIDxkYW5pZWxAZmZ3bGwuY2g+Cj4+ID4g LS0tCj4+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2xyYy5jICAgICAgICB8IDIwICsr KysrKysrKysrLS0tLS0tLS0tCj4+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3Jpbmdi dWZmZXIuYyB8IDIzICsrKysrKysrKysrKysrKysrKystLS0tCj4+ID4gIDIgZmlsZXMgY2hhbmdl ZCwgMzAgaW5zZXJ0aW9ucygrKSwgMTMgZGVsZXRpb25zKC0pCj4+ID4KPj4gPiBkaWZmIC0tZ2l0 IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHJjLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkx NS9pbnRlbF9scmMuYwo+PiA+IGluZGV4IGU0MDViNjFjZGFjNS4uOGU3MWQ4ODUxYzlhIDEwMDY0 NAo+PiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2xyYy5jCj4+ID4gKysrIGIv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHJjLmMKPj4gPiBAQCAtMTIzNywxNSArMTIzNywx NyBAQCBzdGF0aWMgaW50IGdlbjhfZW1pdF9mbHVzaChzdHJ1Y3QgaW50ZWxfcmluZ2J1ZmZlciAq cmluZ2J1ZiwKPj4gPiAgCj4+ID4gIAljbWQgPSBNSV9GTFVTSF9EVyArIDE7Cj4+ID4gIAo+PiA+ IC0JaWYgKHJpbmcgPT0gJmRldl9wcml2LT5yaW5nW1ZDU10pIHsKPj4gPiAtCQlpZiAoaW52YWxp ZGF0ZV9kb21haW5zICYgSTkxNV9HRU1fR1BVX0RPTUFJTlMpCj4+ID4gLQkJCWNtZCB8PSBNSV9J TlZBTElEQVRFX1RMQiB8IE1JX0lOVkFMSURBVEVfQlNEIHwKPj4gPiAtCQkJCU1JX0ZMVVNIX0RX X1NUT1JFX0lOREVYIHwKPj4gPiAtCQkJCU1JX0ZMVVNIX0RXX09QX1NUT1JFRFc7Cj4+ID4gLQl9 IGVsc2Ugewo+PiA+IC0JCWlmIChpbnZhbGlkYXRlX2RvbWFpbnMgJiBJOTE1X0dFTV9ET01BSU5f UkVOREVSKQo+PiA+IC0JCQljbWQgfD0gTUlfSU5WQUxJREFURV9UTEIgfCBNSV9GTFVTSF9EV19T VE9SRV9JTkRFWCB8Cj4+ID4gLQkJCQlNSV9GTFVTSF9EV19PUF9TVE9SRURXOwo+PiA+ICsJLyog V2UgYWx3YXlzIHJlcXVpcmUgYSBjb21tYW5kIGJhcnJpZXIgc28gdGhhdCBzdWJzZXF1ZW50Cj4+ ID4gKwkgKiBjb21tYW5kcywgc3VjaCBhcyBicmVhZGNydW1iIGludGVycnVwdHMsIGFyZSBzdHJp Y3RseSBvcmRlcmVkCj4+ID4gKwkgKiB3cnQgdGhlIGNvbnRlbnRzIG9mIHRoZSB3cml0ZSBjYWNo ZSBiZWluZyBmbHVzaGVkIHRvIG1lbW9yeQo+PiA+ICsJICogKGFuZCB0aHVzIGJlaW5nIGNvaGVy ZW50IGZyb20gdGhlIENQVSkuCj4+ID4gKwkgKi8KPj4gPiArCWNtZCB8PSBNSV9GTFVTSF9EV19T VE9SRV9JTkRFWCB8IE1JX0ZMVVNIX0RXX09QX1NUT1JFRFc7Cj4+ID4gKwo+PiA+ICsJaWYgKGlu dmFsaWRhdGVfZG9tYWlucyAmIEk5MTVfR0VNX0dQVV9ET01BSU5TKSB7Cj4+IAo+PiBXaHkgZG8g eW91IGNoYW5nZSB0aGUgbWFzayBmcm9tIEk5MTVfR0VNX0RPTUFJTl9SRU5ERVIgdG8KPj4gSTkx NV9HRU1fR1BVX0RPTUFJTlMgZm9yIHJpbmcgIT0gVkNTPwo+Cj4gTXkgYmFkLCBJIGRpZG4ndCBu b3RpY2UgdGhhdCBleGVjbGlzdHMgd2FzIG9yaWdpbmFsbHkgYnJva2VuLiBUaGUgcGF0Y2gKPiBp cyBjb3JyZWN0LgoKSSdsbCB0YWtlIHlvdXIgYW5kIERhbmllbCdzIHdvcmQgZm9yIGl0LiBJIGhv cGUgSSB3b24ndCBoYXZlIHRvIHJlZ3JldApub3QgYXNraW5nIHlvdSB0byBzcGxpdCB0aGlzIGlu dG8gdHdvIHBhdGNoZXMuLi4KClB1c2hlZCB0byBkcm0taW50ZWwtbmV4dC1maXhlcywgdGhhbmtz IGZvciB0aGUgcGF0Y2ggYW5kIGFjay4KCkJSLApKYW5pLgoKCgo+IC1DaHJpcwo+Cj4gLS0gCj4g Q2hyaXMgV2lsc29uLCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9sb2d5IENlbnRyZQoKLS0gCkph bmkgTmlrdWxhLCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9sb2d5IENlbnRlcgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBs aXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNr dG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=