From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH v3] drm/i915: Optimistically spin for the request completion Date: Thu, 12 Mar 2015 15:18:01 +0000 Message-ID: <5501AE29.1070808@linux.intel.com> References: <20150312091743.GT3800@phenom.ffwll.local> <1426158677-26261-1-git-send-email-chris@chris-wilson.co.uk> <55019136.4@linux.intel.com> <20150312131858.GA20273@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 mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id D7C316E9D4 for ; Thu, 12 Mar 2015 08:18:04 -0700 (PDT) In-Reply-To: <20150312131858.GA20273@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, Daniel Vetter List-Id: intel-gfx@lists.freedesktop.org Ck9uIDAzLzEyLzIwMTUgMDE6MTggUE0sIENocmlzIFdpbHNvbiB3cm90ZToKPiBPbiBUaHUsIE1h ciAxMiwgMjAxNSBhdCAwMToxNDozMFBNICswMDAwLCBUdnJ0a28gVXJzdWxpbiB3cm90ZToKPj4g T24gMDMvMTIvMjAxNSAxMToxMSBBTSwgQ2hyaXMgV2lsc29uIHdyb3RlOgo+Pj4gVGhpcyBwcm92 aWRlcyBhIG5pY2UgYm9vc3QgdG8gbWVzYSBpbiBzd2FwIGJvdW5kIHNjZW5hcmlvcyAoYXMgbWVz YQo+Pj4gdGhyb3R0bGVzIGl0c2VsZiB0byB0aGUgcHJldmlvdXMgZnJhbWUgYW5kIGdpdmVuIHRo ZSBzY2VuYXJpbyB0aGF0IHdpbGwKPj4+IGNvbXBsZXRlIHNob3J0bHkpLiBJdCB3aWxsIGFsc28g cHJvdmlkZSBhIGdvb2QgYm9vc3QgdG8gc3lzdGVtcyBydW5uaW5nCj4+PiB3aXRoIHNlbWFwaG9y ZXMgZGlzYWJsZWQgYW5kIHNvIGZyZXF1ZW50bHkgd2FpdGluZyBvbiB0aGUgR1BVIGFzIGl0Cj4+ PiBzd2l0Y2hlcyByaW5ncy4gSW4gdGhlIG1vc3QgZmF2b3VyYWJsZSBvZiBtaWNyb2JlbmNobWFy a3MsIHRoaXMgY2FuCj4+PiBpbmNyZWFzZSBwZXJmb3JtYW5jZSBieSBhcm91bmQgMTUlIC0gdGhv dWdoIGluIHByYWN0aWNlIGltcHJvdmVtZW50cwo+Pj4gd2lsbCBiZSBtYXJnaW5hbCBhbmQgcmFy ZWx5IG5vdGljZWFibGUuCj4+Pgo+Pj4gdjI6IEFjY291bnQgZm9yIHVzZXIgdGltZW91dHMKPj4+ IHYzOiBMaW1pdCB0aGUgc3Bpbm5pbmcgdG8gYSBzaW5nbGUgamlmZmllICh+MXVzKSBhdCBtb3N0 LiBPbiBhbgo+Pj4gb3RoZXJ3aXNlIGlkbGUgc3lzdGVtLCB0aGVyZSBpcyBubyBzY2hlZHVsZXIg Y29udGVudGlvbiBhbmQgc28gd2l0aG91dCBhCj4+PiBsaW1pdCB3ZSB3b3VsZCBzcGluIHVudGls IHRoZSBHUFUgaXMgcmVhZHkuCj4+Cj4+IElzbid0IG9uZSBqaWZmaWUgMS0xMG1zIHR5cGljYWxs eT8KPgo+IDFtcy4gSSB3YXMganVzdCB0aGlua2luZyBvZiBkb2luZyBVU0VDU19QRVJfU0VDIC8g SFosIHRoZW4gcmVhbGlzZWQgdGhhdAo+IHdhcyBhIGppZmZpZSwgaGVuY2UgdGhlIGNvbmZ1c2lv bi4gQXQgYW55IHJhdGUsIGl0IGlzIHN0aWxsIHRoZSBtaW5pbXVtCj4gd2UgY2FuIHRyaXZpYWxs eSB3YWl0IGZvciAod2l0aG91dCBhbiBleHBlbnNpdmUgaHJ0aW1lcikuCgpVbmxlc3MgSSBsb3N0 IHRyYWNrIHdpdGggdGhlIHRpbWVzLCB0aGF0J3MgQ09ORklHX0haIHJpZ2h0PwoKSSBkb24ndCBr bm93IHdoYXQgc2VydmVyIGRpc3RyaWJ1dGlvbnMgZG8sIGJ1dCB0aGlzIFVidW50dSBMVFMgSSBh bSAKcnVubmluZyBoYXMgSFo9MjUwIHdoaWNoIG1lYW5zIDRtcy4KClRoYXQgd291bGQgbWVhbiBv biBhIHN5c3RlbSB3aGVyZSB0aHJvdWdocHV0IGlzIG1vcmUgaW1wb3J0YW50IHRoYW4gCmxhdGVu Y3ksIHlvdSBsb3NlIG1vc3QgdGhyb3VnaHB1dCBieSBzcGlubmluZyB0aGUgbG9uZ2VzdC4gSW4g dGhlb3J5IGF0IApsZWFzdCwgbm8/CgpTbyBwZXJoYXBzIHdoaWNoIHNob3VsZCBiZSBhIHR1bmFi bGU/IE9wdGlvbmFsbHkgYXV0by1zZWxlY3QgdGhlIGluaXRpYWwgCnN0YXRlIGJhc2VkIG9uIEha LgoKUmVnYXJkcywKClR2cnRrbwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVz a3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lu dGVsLWdmeAo=