From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH] drm/i915: Use SSE4.1 movntdqa to accelerate reads from WC memory Date: Mon, 18 Jul 2016 13:07:28 +0100 Message-ID: <578CC680.80206@linux.intel.com> References: <20160718100111.GD21839@nuc-i3427.alporthouse.com> <1468836434-29107-1-git-send-email-chris@chris-wilson.co.uk> <578CBA54.40107@linux.intel.com> <20160718113501.GH21839@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" 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 072276E0A1 for ; Mon, 18 Jul 2016 12:07:32 +0000 (UTC) In-Reply-To: <20160718113501.GH21839@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 , intel-gfx@lists.freedesktop.org, Akash Goel , Mika Kuoppala List-Id: intel-gfx@lists.freedesktop.org Ck9uIDE4LzA3LzE2IDEyOjM1LCBDaHJpcyBXaWxzb24gd3JvdGU6Cj4gT24gTW9uLCBKdWwgMTgs IDIwMTYgYXQgMTI6MTU6MzJQTSArMDEwMCwgVHZydGtvIFVyc3VsaW4gd3JvdGU6Cj4+IEkgYW0g bm90IHN1cmUgYWJvdXQgdGhpcywgYnV0IGxvb2tpbmcgYXQgdGhlIHJhaWQ2IGZvciBleGFtcGxl LCBpdAo+PiBoYXMgYSBsb3QgbW9yZSBhbm5vdGF0aW9ucyBpbiBjYXNlcyBsaWtlIHRoaXMuCj4+ Cj4+IEl0IHNlZW1zIHRvIGJlIHRlbGxpbmcgdGhlIGNvbXBpbGVyIHdoaWNoIG1lbW9yeSByYW5n ZXMgZG9lcyBlYWNoCj4+IGluc3RydWN0aW9uIGFjY2VzcywgYW5kIGFsc28gdXNlcyAiYXNtIHZv bGF0aWxlIiAtIHdoZXRoZXIgb3Igbm90Cj4+IHRoYXQgaXMgcmVhbGx5IG5lZWRlZCBJIGRvbid0 IGtub3cuCj4+Cj4+IEZvciBleGFtcGxlOgo+PiAgICAgICAgICAgICAgICAgIGFzbSB2b2xhdGls ZSgibW92ZHFhICUwLCUleG1tNCIgOjogIm0iIChkcHRyW3owXVtkXSkpOwo+Pgo+PiBBbmQ6Cj4+ ICAgICAgICAgICAgICAgICAgYXNtIHZvbGF0aWxlKCJtb3ZkcWEgJSV4bW00LCUwIiA6ICI9bSIg KHFbZF0pKTsKPj4KPj4gRWFjaCBvbmUgaXMgdGVsbGluZyB0aGUgY29tcGlsZXIgdGhlIGluc3Ry dWN0aW9uIGlzIGVpdGhlciByZWFkaW5nCj4+IG9yIHdyaXRpbmcgcmVzcGVjdGl2ZWx5IGZyb20g YSBjZXJ0YWluIG1lbW9yeSBhZGRyZXNzLgo+Pgo+PiBZb3UgZG9uJ3QgaGF2ZSBhbnkgb2YgdGhh dCwgYW5kIGRvbid0IGV2ZW4gc3BlY2lmeSBub3RoaW5nIGFzIGFuCj4+IG91dHB1dCBwYXJhbWV0 ZXIgc28gSSBhbSBub3Qgc3VyZSBpZiB5b3VyIGNvZGUgaXMgc2FmZS4KPgo+IFRoZSBhc20gaXMg Y29ycmVjdC4gV2UgZG8gbm90IG1vZGlmeSBlaXRoZXIgb2YgdGhlIHR3byBwb2ludGVycyB3aGlj aCB3ZQo+IHBhc3MgaW4gdmlhIHJlZ2lzdGVyIGlucHV0cywgYnV0IHRoZSBtZW1vcnkgYmVoaW5k IHRoZW0gLSBoZW5jZSB0aGUgbWVtb3J5Cj4gY2xvYmJlci4KClNvIHlvdSBhcmUgc2F5aW5nIG1l bW9yeSBjbG9iYmVyIGlzIGxpa2UgYSBiaWcgaGFtbWVyIHRlbGxpbmcgdGhlIApjb21waWxlciB5 b3UgYXJlIG1vZGlmeWluZyBzb21lIG1lbW9yeSBhbmQgaXQgaXMgbm90IGFsbG93ZWQgdG8gYXNz dW1lIApvciByZW1vdmUgYW55dGhpbmc/CgpUaGVyZSB3b3VsZCBiZSBubyBiZW5lZml0IGluIGJl aW5nIG1vcmUgc3BlY2lmaWMsIGxpa2UgdGhlIFJBSUQgY29kZSBkb2VzPwoKPj4+ICt2b2lkIGk5 MTVfbWVtY3B5X2luaXRfZWFybHkoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2KQo+ Pj4gK3sKPj4+ICsJaWYgKHN0YXRpY19jcHVfaGFzKFg4Nl9GRUFUVVJFX1hNTTRfMSkpCj4+PiAr CQlzdGF0aWNfYnJhbmNoX2VuYWJsZSgmaGFzX21vdm50ZHFhKTsKPj4+ICt9Cj4+Pgo+Pgo+PiBJ IHdhcyBub3QgZmFtaWxpYXIgd2l0aCBzdGF0aWMga2V5IHN0dWZmIGFuZCB0aGUgb25seSB0aGlu ZyBJIGNhbgo+PiBub3RpY2UgaXMgdGhhdCBpdCBpcyB1c2VkIHZlcnkgbGl0dGxlIHRocm91Z2hv dXQgdGhlIGtlcm5lbC4gT24gdGhlCj4+IG90aGVyIGhhbmQgSSBoYXZlbid0IGZvdW5kIGFueSBy ZWZlcmVuY2VzIGluIHRoZSBkb2N1bWVudGF0aW9uIHRoYXQKPj4gaXQgc2hvdWxkIGJlIHVzZWQg c3BhcmluZ2x5IG9yIHNvbWV0aGluZy4KPj4KPj4gQnV0IHRoZSBnZW5lcmFsIHF1ZXN0aW9uIHdv dWxkIGJlIC0gaXMgaXQgd29ydGggaXQgaGVyZT8gU3RhdGljCj4+IGJyYW5jaGVzIHNob3VsZCBi ZSByZWFsbHkgZWZmaWNpZW50IGluIHRoZSBvZmYgY2FzZSwgY29ycmVjdD8gQW5kIHdlCj4+IGRv bid0IHJlYWxseSBjYXJlIGFib3V0IHRoZSBwZXJmb3JtYW5jZSBvZiB0aGUgb2ZmIGNhc2UgaGVy ZS4gU28KPj4gd291bGQgaXQgYmUganVzdCBhcyBnb29kIHRvIHVzZSBhIG5vcm1hbCBicmFuY2g/ Cj4KPiBJdCdzIG5vdCB0aGUgY29zdCBvZiB0aGUgYnJhbmNoLCBidXQgdGhlIHN0YXRpY19jcHVf aGFzKCkgaW4gY29tcGFyaXNvbgo+IHRvIGEgc21hbGwgY29weS4KCkNvdWxkIGNhY2hlIGl0IGlu IGRldl9wcml2LiBOb3Qgc2F5aW5nIHlvdSBzaG91bGQsIGp1c3QgYXNraW5nIGFib3V0IApwcm9z IGFuZCBjb25zIG9mIHRoZSB0d28gYXBwcm9hY2hlcyB2cyB0aGUgYW1vdW50IG9mIGNvZGUuIFdl bGwgbm90IGV2ZW4gCnRoZSBhbW91bnQgb2YgY29kZSwganVzdCB0aGUgZmFjdCBzdGF0aWMga2V5 cyBzZWVtIHRvIGJlIHVzZWQgc28gbGl0dGxlIApzbyB3b25kZXJpbmcgd2h5LgoKUmVnYXJkcywK ClR2cnRrbwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJ bnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK