From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kahola Subject: Re: [PATCH] drm/i915: Add delay on DPCD reads Date: Wed, 16 Mar 2016 09:43:59 +0200 Message-ID: <1458114239.8419.3.camel@sorvi> References: <1458041938-3279-1-git-send-email-mika.kahola@intel.com> <20160315132621.GI14170@phenom.ffwll.local> Reply-To: mika.kahola@intel.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 2395F6E28F for ; Wed, 16 Mar 2016 07:44:25 +0000 (UTC) In-Reply-To: <20160315132621.GI14170@phenom.ffwll.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVHVlLCAyMDE2LTAzLTE1IGF0IDE0OjI2ICswMTAwLCBEYW5pZWwgVmV0dGVyIHdyb3RlOgo+ IE9uIFR1ZSwgTWFyIDE1LCAyMDE2IGF0IDAxOjM4OjU4UE0gKzAyMDAsIE1pa2EgS2Fob2xhIHdy b3RlOgo+ID4gQWRkaXRpb25hbCA1MCBtcyBkZWxheSBpcyBuZWVkZWQgYmV0d2VlbiBEUENEIHJl YWRzIG9uIEhQIEJpemxpbmsgMTMyNgo+ID4gRFAgdG8gVkdBIGFkYXB0ZXIuIEhhdmluZyBzYWlk IHRoYXQsIEkgaGF2ZW4ndCBub3RpY2VkIGEgbmVlZCBmb3IKPiA+IGFkZGl0aW9uYWwgZGVsYXkg YmV0d2VlbiBEUENEIHJlYWRzIG9uIG90aGVyIERQLVZHQSBkb25nbGVzLgo+ID4gCj4gPiBXaGls ZSBhdCBpdCwgbGV0J3MgcmVwbGFjZSBtZGVsYXkoKSB3aXRoIHVzbGVlcF9yYW5nZSgpIHJvdXRp bmUuCj4gPiAKPiA+IFNpZ25lZC1vZmYtYnk6IE1pa2EgS2Fob2xhIDxtaWthLmthaG9sYUBpbnRl bC5jb20+Cj4gCj4gUGxlYXNlIGRvbid0IGFkZCBtb3JlIGhhY2tzIHRvIG91ciBvd24gcHJpdmF0 ZSBjb3B5IG9mIHJlYWRfd2FrZS4gVGhpcwo+IHN0dWZmIG5lZWRzIHRvIG1vdmUgaW50byBkcm0g Y29yZSwgc2luY2UgcmVhbGx5IHdlIGNhbid0IGJlIHRoZSBvbmx5IG9uZXMKPiB3aG8gdHJ5IHRv IHBsdWcgaW4gc2hpdCBkb25nbGVzIDstKQo+IAo+IFdvdWxkIGJlIGdyZWF0IHRvIHRlc3QgdGhp cyB3aXRoIGFuIGFtZCBEUCBjYXJkIGFuZCB0aGUgZXhhY3Qgc2FtZQo+IGNvbm5lY3RvciBhbmQg c2VlIHdoYXQgaGFwcGVucy4gVGhlbiBtb3ZlIHRoZXNlIHJlYWRfd2FrZSBoYWNrcyBpbnRvIHRo ZQo+IGRybV9kcF9kcGNkX3JlYWQgZnVuY3Rpb24uIEx5dWRlIGlzIGFsc28gd29ya2luZyBvbiBz b21ldGhpbmcgbGlrZSB0aGlzLAo+IGJ1dCBmb3IgRFAgTVNUIGh1YnMuCgpUaGlzIHBhcnRpY3Vs YXIgRFAtVkdBIGRvbmdsZSBoYXMgYmVlbiBwcm9ibGVtYXRpYy4gSSBoYXZlIHVzZWQgV2luZG93 cwp0byBiZW5jaG1hcmsgdGhlIHBlcmZvcm1hbmNlLiBJdCB0YWtlcyBldGVybml0eSB0byBsaWdo dCB1cCB0aGUgZGlzcGxheQpvbiBXaW5kb3dzIGJ1dCB0aGUgZXZlbnR1YWxseSB0aGUgZHJpdmVy IGlzIGFibGUgdG8gZG8gdGhhdC4KCllvdSdyZSByaWdodCwgcGVyaGFwcyB0aGUgYmVzdCBwbGFj ZSBmb3IgdGhpcyBzb3J0IG9mIGhhY2tzIGlzIHRoZSBkcm0KY29yZS4gCgpDaGVlcnMsCk1pa2EK IAo+IC1EYW5pZWwKPiAKPiA+IC0tLQo+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rw LmMgfCA2ICsrKystLQo+ID4gIDEgZmlsZSBjaGFuZ2VkLCA0IGluc2VydGlvbnMoKyksIDIgZGVs ZXRpb25zKC0pCj4gPiAKPiA+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRl bF9kcC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ID4gaW5kZXggMGUzMjZl Ny4uZmYzODgzYyAxMDA2NDQKPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rw LmMKPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiA+IEBAIC0zMTI1 LDkgKzMxMjUsMTEgQEAgaW50ZWxfZHBfZHBjZF9yZWFkX3dha2Uoc3RydWN0IGRybV9kcF9hdXgg KmF1eCwgdW5zaWduZWQgaW50IG9mZnNldCwKPiA+ICAKPiA+ICAJZm9yIChpID0gMDsgaSA8IDM7 IGkrKykgewo+ID4gIAkJcmV0ID0gZHJtX2RwX2RwY2RfcmVhZChhdXgsIG9mZnNldCwgYnVmZmVy LCBzaXplKTsKPiA+IC0JCWlmIChyZXQgPT0gc2l6ZSkKPiA+ICsJCWlmIChyZXQgPT0gc2l6ZSkg ewo+ID4gKwkJCXVzbGVlcF9yYW5nZSg1MDAwMCwgNTAxMDApOwo+ID4gIAkJCXJldHVybiByZXQ7 Cj4gPiAtCQltc2xlZXAoMSk7Cj4gPiArCQl9Cj4gPiArCQl1c2xlZXBfcmFuZ2UoMTAwMCwgMTEw MCk7Cj4gPiAgCX0KPiA+ICAKPiA+ICAJcmV0dXJuIHJldDsKPiA+IC0tIAo+ID4gMS45LjEKPiA+ IAo+ID4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPiA+ IEludGVsLWdmeCBtYWlsaW5nIGxpc3QKPiA+IEludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKPiA+IGh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50 ZWwtZ2Z4Cj4gCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3Jn Cmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4 Cg==