From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH] drm/i915 : Avoid superfluous invalidation of CPU cache lines Date: Wed, 25 Nov 2015 13:02:20 +0200 Message-ID: <20151125110220.GM4437@intel.com> References: <1448359524-11814-1-git-send-email-akash.goel@intel.com> <20151124100406.GD4437@intel.com> <20151124181431.GD17050@phenom.ffwll.local> <20151124223938.GC16277@nuc-i3427.alporthouse.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 965EA6E822 for ; Wed, 25 Nov 2015 03:02:25 -0800 (PST) Content-Disposition: inline In-Reply-To: <20151124223938.GC16277@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 , Daniel Vetter , akash.goel@intel.com, intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVHVlLCBOb3YgMjQsIDIwMTUgYXQgMTA6Mzk6MzhQTSArMDAwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IE9uIFR1ZSwgTm92IDI0LCAyMDE1IGF0IDA3OjE0OjMxUE0gKzAxMDAsIERhbmllbCBW ZXR0ZXIgd3JvdGU6Cj4gPiBPbiBUdWUsIE5vdiAyNCwgMjAxNSBhdCAxMjowNDowNlBNICswMjAw LCBWaWxsZSBTeXJqw6Rsw6Qgd3JvdGU6Cj4gPiA+IE9uIFR1ZSwgTm92IDI0LCAyMDE1IGF0IDAz OjM1OjI0UE0gKzA1MzAsIGFrYXNoLmdvZWxAaW50ZWwuY29tIHdyb3RlOgo+ID4gPiA+IEZyb206 IEFrYXNoIEdvZWwgPGFrYXNoLmdvZWxAaW50ZWwuY29tPgo+ID4gPiA+IAo+ID4gPiA+IFdoZW4g dGhlIG9iamVjdCBpcyBtb3ZlZCBvdXQgb2YgQ1BVIHJlYWQgZG9tYWluLCB0aGUgY2FjaGVsaW5l cwo+ID4gPiA+IGFyZSBub3QgaW52YWxpZGF0ZWQgaW1tZWRpYXRlbHkuIFRoZSBpbnZhbGlkYXRp b24gaXMgZGVmZXJyZWQgdGlsbAo+ID4gPiA+IG5leHQgdGltZSB0aGUgb2JqZWN0IGlzIGJyb3Vn aHQgYmFjayBpbnRvIENQVSByZWFkIGRvbWFpbi4KPiA+ID4gPiBCdXQgdGhlIGludmFsaWRhdGlv biBpcyBkb25lIHVuY29uZGl0aW9uYWxseSwgaS5lLiBldmVuIGZvciB0aGUgY2FzZQo+ID4gPiA+ IHdoZXJlIHRoZSBjYWNoZWxpbmVzIHdlcmUgZmx1c2hlZCBwcmV2aW91c2x5LCB3aGVuIHRoZSBv YmplY3QgbW92ZWQgb3V0Cj4gPiA+ID4gb2YgQ1BVIHdyaXRlIGRvbWFpbi4gVGhpcyBpcyBhdm9p ZGFibGUgYW5kIHdvdWxkIGxlYWQgdG8gc29tZSBvcHRpbWl6YXRpb24uCj4gPiA+ID4gVGhvdWdo IHRoaXMgaXMgbm90IGEgaHlwb3RoZXRpY2FsIGNhc2UsIGJ1dCBpcyB1bmxpa2VseSB0byBvY2N1 ciBvZnRlbi4KPiA+ID4gPiBUaGUgYWltIGlzIHRvIGRldGVjdCBjaGFuZ2VzIHRvIHRoZSBiYWNr aW5nIHN0b3JhZ2Ugd2hpbHN0IHRoZQo+ID4gPiA+IGRhdGEgaXMgcG90ZW50aWFsbHkgaW4gdGhl IENQVSBjYWNoZSwgYW5kIG9ubHkgY2xmbHVzaCBpbiB0aG9zZSBjYXNlLgo+ID4gPiA+IAo+ID4g PiA+IFNpZ25lZC1vZmYtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVr Pgo+ID4gPiA+IFNpZ25lZC1vZmYtYnk6IEFrYXNoIEdvZWwgPGFrYXNoLmdvZWxAaW50ZWwuY29t Pgo+ID4gPiA+IC0tLQo+ID4gPiA+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oIHwg MSArCj4gPiA+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMgfCA5ICsrKysrKysr LQo+ID4gPiA+ICAyIGZpbGVzIGNoYW5nZWQsIDkgaW5zZXJ0aW9ucygrKSwgMSBkZWxldGlvbigt KQo+ID4gPiA+IAo+ID4gPiA+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1 X2Rydi5oIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaAo+ID4gPiA+IGluZGV4IGRm OTMxNmYuLmZlZGI3MWQgMTAwNjQ0Cj4gPiA+ID4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUv aTkxNV9kcnYuaAo+ID4gPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmgK PiA+ID4gPiBAQCAtMjA5OCw2ICsyMDk4LDcgQEAgc3RydWN0IGRybV9pOTE1X2dlbV9vYmplY3Qg ewo+ID4gPiA+ICAJdW5zaWduZWQgbG9uZyBndF9ybzoxOwo+ID4gPiA+ICAJdW5zaWduZWQgaW50 IGNhY2hlX2xldmVsOjM7Cj4gPiA+ID4gIAl1bnNpZ25lZCBpbnQgY2FjaGVfZGlydHk6MTsKPiA+ ID4gPiArCXVuc2lnbmVkIGludCBjYWNoZV9jbGVhbjoxOwo+ID4gPiAKPiA+ID4gU28gbm93IHdl IGhhdmUgY2FjaGVfZGlydHkgYW5kIGNhY2hlX2NsZWFuIHdoaWNoIHNlZW1zIHJlZHVuZGFudCwK PiA+ID4gZXhjZXB0IHNvbWVob3cgY2FjaGVfZGlydHkgIT0gIWNhY2hlX2NsZWFuPwo+IAo+IEV4 YWN0bHksIG5vdCBlbnRpcmVseSByZWR1bmRhbnQuIEkgZGlkIHRoaW5rIHNvbWV0aGluZyBhbG9u ZyBNRVNJIGxpbmVzCj4gd291bGQgYmUgdXNlZnVsLCBidXQgdGhhdCBkaWRuJ3QgY2FwdHVyZSB0 aGUgZGlmZmVyZW50IG1lYW5pbmdzIHdlCj4gZW1wbG95Lgo+IAo+IGNhY2hlX2RpcnR5IHRyYWNr cyB3aGV0aGVyIHdlIGhhdmUgYmVlbiBlbGlkaW5nIHRoZSBjbGZsdXNoLgo+IAo+IGNhY2hlX2Ns ZWFuIHRyYWNrcyB3aGV0aGVyIHdlIGtub3cgdGhlIGNhY2hlIGhhcyBiZWVuIGNvbXBsZXRlbHkK PiBjbGZsdXNoZWQuCgpDYW4gd2Uga25vdyB0aGF0IHdpdGggc3BlY3VsYXRpdmUgcHJlZmV0Y2hp bmcgYW5kIHdoYXRub3Q/Cgo+IAo+IChjYWNoZV9jbGVhbiBpbXBsaWVzICFjYWNoZV9kaXJ0eSwg YnV0Cj4gIWNhY2hlX2NsZWFuIGRvZXMgbm90IGltcGx5IGNhY2hlX2RpcnR5KQo+IAo+ID4gV2Ug YWxzbyBoYXZlIHJlYWRfZG9tYWlucyAmIERPTUFJTl9DUFUuIFdoaWNoIGlzIHdoaWNoPwo+IAo+ IERPTUFJTl9DUFUgaW1wbGllcyB0aGF0IHRoZSBvYmplY3QgbWF5IGJlIGluIHRoZSBjcHUgY2Fj aGUgKG1vZHVsbyB0aGUKPiBjbGZsdXNoIGVsaXNpb24gYWJvdmUpLgo+IAo+IERPTUFJTl9DUFUg aW1wbGllcyAhY2FjaGVfY2xlYW4KPiAKPiBhbmQgZXZlbgo+IAo+IGNhY2hlX2NsZWFuIGltcGxp ZXMgIURPTUFJTl9DUFUKPiAKPiBidXQKPiAKPiAhRE9NQUlOX0NQVSBkb2VzIG5vdCBpbXBseSBj YWNoZV9jbGVhbgo+IC1DaHJpcwo+IAo+IC0tIAo+IENocmlzIFdpbHNvbiwgSW50ZWwgT3BlbiBT b3VyY2UgVGVjaG5vbG9neSBDZW50cmUKCi0tIApWaWxsZSBTeXJqw6Rsw6QKSW50ZWwgT1RDCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBt YWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMu ZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==