From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH] drm/i915: Replace some more busy waits with normal ones Date: Wed, 23 Mar 2016 17:43:48 +0200 Message-ID: <877fgt42tn.fsf@gaia.fi.intel.com> References: <1458743527-25392-1-git-send-email-tvrtko.ursulin@linux.intel.com> <56F2AA7C.9060604@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTP id F1DDB6E8A2 for ; Wed, 23 Mar 2016 15:46:47 +0000 (UTC) In-Reply-To: <56F2AA7C.9060604@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Tvrtko Ursulin , Intel-gfx@lists.freedesktop.org Cc: Paulo Zanoni List-Id: intel-gfx@lists.freedesktop.org VHZydGtvIFVyc3VsaW4gPHR2cnRrby51cnN1bGluQGxpbnV4LmludGVsLmNvbT4gd3JpdGVzOgoK PiBbIHRleHQvcGxhaW4gXQo+Cj4gU2hvdWxkIGhhdmUgc2VudCB0aGlzIGFzIFJGQy4uCj4KPiBP biAyMy8wMy8xNiAxNDozMiwgVHZydGtvIFVyc3VsaW4gd3JvdGU6Cj4+IEZyb206IFR2cnRrbyBV cnN1bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+Cj4+Cj4+IFdoZW4gSSBhZGRlZCBhbiBh c3NlcnQgdG8gY2F0Y2ggbm9uLWF0b21pYyB1c2VycyBvZgo+PiB3YWl0X2Zvcl9hdG9taWNfdXMg aW4gMDM1MWI5Mzk5MmFhNDYzY2MzZTdmMzU4ZGRlYzI3MDlmOTM5MDc1Ngo+PiAoImRybS9pOTE1 OiBEbyBub3QgbGllIGFib3V0IGF0b21pYyB0aW1lb3V0IGdyYW51bGFyaXR5IiksCj4+IEkgaGF2 ZSBtaXNzZWQgc29tZSBjYWxsZXJzIHdoaWNoIHVzZSBpdCBmcm9tIG9idmlvdXNseQo+PiBub24t YXRvbWljIGNvbnRleHQuCj4+Cj4+IFJlcGxhY2UgdGhlbSB3aXRoIHNsZWVwaW5nIHdhaXRzIHdo aWNoIHN1cHBvcnQgbWljcm8tc2Vjb25kCj4+IHRpbWVvdXQgZ3JhbnVsYXJpdHkgc2luY2UgM2Yx Nzc2MjVlZTg5NmY1ZDNjNjJmYTZhNDk1NTRhOWMwMjQzYmNlYgo+PiAoImRybS9pOTE1OiBBZGQg d2FpdF9mb3JfdXMiKS4KPj4KPj4gTm90ZSBob3dldmVyIHRoYW4gYSBmaXggZm9yIHdhaXRfZm9y IGlzIG5lZWRlZCB0byBhIGNsb2NrIHdpdGgKPj4gbW9yZSBncmFudWxhcml0eSB0aGFuIGppZmZp ZXMuIEluIHRoZSBhYm92ZSByZWZlcmVuY2VkIHBhdGNoCj4+IEkgaGF2ZSBzd2l0Y2hlZCB0aGUg YXJndW1lbnRzIHRvIG1pY3JvLXNlY29uZHMsIGJ1dCBmYWlsZWQgdG8KPj4gdXBncmFkZSB0aGUg Y2xvY2sgYXMgd2VsbCwgYXMgTWlrYSBoYXMgbGF0ZXIgZGlzY292ZXJlZC4KPj4KPj4gT3BlbiBx dWVzdGlvbiBoZXJlIGlzIHdoZXRoZXIgd2Ugc2hvdWxkIGFsbG93IHNsZWVwaW5nIHdhaXRzCj4+ IG9mIGxlc3MgdGhhbiAxMHVzIHdoaWNoIHVzbGVlcF9yYW5nZSByZWNvbW1lbmRzIGFnYWluc3Qu IEFuZAo+PiB0aGlzIHBhdGNoIGFjdHVhbGx5IHRvdWNoZXMgb25lIGNhbGwgc2l0ZSB3aGljaCBh c2tzIGZvciAxdXMKPj4gdGltZW91dC4KPj4KPj4gVGhlc2UgbWlnaHQgYmUgYmV0dGVyIHNlcnZl ZCB3aXRoIHdhaXRfZm9yX2F0b21pY191cywgaW4gd2hpY2gKPj4gY2FzZSB0aGUgaW5hdG9taWMg d2FybmluZyB0aGVyZSBzaG91bGQgYmUgbWFkZSBkZXBlbmRhbnQgb24KPj4gdGhlIHJlcXVlc3Rl ZCB0aW1lb3V0Lgo+Cj4gRm9yIGRpc2N1c3Npb24gLSBkb2VzIHRoZSBhYm92ZSBzb3VuZCBsaWtl IGEgYmV0dGVyIHBsYW4gdGhhbiB0aGlzIAo+IHBhdGNoPyBUbyBzdW0gdXAgbXkgcHJvcG9zYWw6 Cj4KCldoYXQgSSBoYXZlIGFpbWVkIGZvciB3YXMgdGhhdCB3ZSBvbmx5IGhhdmUgd2FpdF9mb3Ig YW5kIHdhaXRfZm9yX2F0b21pYy4KClRoZSBzbGVlcGluZyBvbmUgb3BlcmF0ZXMgb24gMW1zIGdy YW51bGFyaXR5IGFuZCB0aGUgbm9uc2xlZXBpbmcKb25lIG9uIHVzZWNzLgoKPiAxLiBBbGxvdyB3 YWl0IGZvcl9hdG9taWNfdXMgZm9yIDwgMTB1cyB3YWl0cyBhbmQga2VlcCB1c2luZyBpdCBmb3Ig c3VjaCAKPiB3YWl0ZXJzLgoKSSBoYXZlIG1vZGlmaWVkIHRoZSB3YWl0X2ZvciB0byBkbyBmZXcg YnVzeSBjeWNsZXMgb24gdGhlCnN0YXJ0IG9mIHRoZSB3YWl0IGFuZCB0aGVuIGFkYXB0aXZlIGJh Y2tvZmYgaWYgY29uZGl0aW9uIGlzIG5vdAp5ZXQgbWV0LiBJbiBob3BlcyB0aGF0IHdlIGNvdWxk IGNvbnZlcnQgZmV3IGF0b21pY193YWl0cyBmb3IgdGhpcy4KCj4gMi4gVXBncmFkZSB0aGUgY2xv Y2sgaW4gd2FpdF9mb3IgdG8gc29tZXRoaW5nIG1vcmUgcHJlY2lzZSB0aGFuIGppZmZpZXMgCj4g c28gdGltZW91dHMgZnJvbSAxMHVzIGFuZCB1cCBjYW4gYmUgaGFuZGxlZCBwcm9wZXJseS4gTm90 ZSB0aGF0IAo+IGN1cnJlbnRseSB0aGlzIGlzICBvbmx5IGFuZCBpc3N1ZSBpbiB0aGUgZmFpbHVy ZS90aW1lb3V0IG1vZGUuIEluIHRoZSAKPiBleHBlY3RlZCBjYXNlIHRoZSBjdXJyZW50IGltcGxl bWVudGF0aW9uIGlzIGZpbmUuCj4KCkkgd291bGQgbm90IGdvIHRoaXMgcm91dGUuIElmIHlvdSBy ZWFsbHkgcmVhbGx5IHdhbnQgPDFtcyByZXNwb25zZQp0aGlzIHNob3VsZCBiZSBleHBsaWNpdCBp biB0aGUgY2FsbHNpdGUuIERpc2NsYWltZXI6IGkgZG9uJ3QKa25vdyBhbGwgdGhlIGNhbGxzaXRl cyBhbmQgcmVxdWlyZW1lbnRzLgoKPiBFcXVhbGx5IGFzIHVuZGVyIDEpLCBwdXQgYSBCVUlMRF9C VUdfT04gaW4gd2FpdF9mb3IgZm9yIDwxMHVzIHdhaXRzLgo+CgpUaGlzIGlzIHdoYXQgSSBoYWQg aW4gbWluZCAod2lwL3JmYyk6Cmh0dHBzOi8vY2dpdC5mcmVlZGVza3RvcC5vcmcvfm1pa3UvZHJt LWludGVsL2xvZy8/aD13YWl0X3VudGlsCgpTcGljZWQgd2l0aCB5b3VyIHBhdGNoIGFuZCBmZXcg YnVpbGRfYnVnX29uLCBJIHRoaW5rIHRoZQp3YWl0X2Zvcl9hdG9taWMoX3VzKSBtaWdodCBiZWNv bWUgcmFyZSB0aGluZy4KClRoYW5rcywKLU1pa2EKCj4gUmVnYXJkcywKPgo+IFR2cnRrbwo+IF9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCj4gSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdAo+IEludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKPiBodHRwczov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeApfX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGlu ZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVl ZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK