From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] drm/i915: Add delay on DPCD reads Date: Tue, 15 Mar 2016 14:26:21 +0100 Message-ID: <20160315132621.GI14170@phenom.ffwll.local> References: <1458041938-3279-1-git-send-email-mika.kahola@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm0-x230.google.com (mail-wm0-x230.google.com [IPv6:2a00:1450:400c:c09::230]) by gabe.freedesktop.org (Postfix) with ESMTPS id B1CF76E749 for ; Tue, 15 Mar 2016 13:25:43 +0000 (UTC) Received: by mail-wm0-x230.google.com with SMTP id p65so26546462wmp.0 for ; Tue, 15 Mar 2016 06:25:43 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1458041938-3279-1-git-send-email-mika.kahola@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Mika Kahola Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVHVlLCBNYXIgMTUsIDIwMTYgYXQgMDE6Mzg6NThQTSArMDIwMCwgTWlrYSBLYWhvbGEgd3Jv dGU6Cj4gQWRkaXRpb25hbCA1MCBtcyBkZWxheSBpcyBuZWVkZWQgYmV0d2VlbiBEUENEIHJlYWRz IG9uIEhQIEJpemxpbmsgMTMyNgo+IERQIHRvIFZHQSBhZGFwdGVyLiBIYXZpbmcgc2FpZCB0aGF0 LCBJIGhhdmVuJ3Qgbm90aWNlZCBhIG5lZWQgZm9yCj4gYWRkaXRpb25hbCBkZWxheSBiZXR3ZWVu IERQQ0QgcmVhZHMgb24gb3RoZXIgRFAtVkdBIGRvbmdsZXMuCj4gCj4gV2hpbGUgYXQgaXQsIGxl dCdzIHJlcGxhY2UgbWRlbGF5KCkgd2l0aCB1c2xlZXBfcmFuZ2UoKSByb3V0aW5lLgo+IAo+IFNp Z25lZC1vZmYtYnk6IE1pa2EgS2Fob2xhIDxtaWthLmthaG9sYUBpbnRlbC5jb20+CgpQbGVhc2Ug ZG9uJ3QgYWRkIG1vcmUgaGFja3MgdG8gb3VyIG93biBwcml2YXRlIGNvcHkgb2YgcmVhZF93YWtl LiBUaGlzCnN0dWZmIG5lZWRzIHRvIG1vdmUgaW50byBkcm0gY29yZSwgc2luY2UgcmVhbGx5IHdl IGNhbid0IGJlIHRoZSBvbmx5IG9uZXMKd2hvIHRyeSB0byBwbHVnIGluIHNoaXQgZG9uZ2xlcyA7 LSkKCldvdWxkIGJlIGdyZWF0IHRvIHRlc3QgdGhpcyB3aXRoIGFuIGFtZCBEUCBjYXJkIGFuZCB0 aGUgZXhhY3Qgc2FtZQpjb25uZWN0b3IgYW5kIHNlZSB3aGF0IGhhcHBlbnMuIFRoZW4gbW92ZSB0 aGVzZSByZWFkX3dha2UgaGFja3MgaW50byB0aGUKZHJtX2RwX2RwY2RfcmVhZCBmdW5jdGlvbi4g THl1ZGUgaXMgYWxzbyB3b3JraW5nIG9uIHNvbWV0aGluZyBsaWtlIHRoaXMsCmJ1dCBmb3IgRFAg TVNUIGh1YnMuCi1EYW5pZWwKCj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rw LmMgfCA2ICsrKystLQo+ICAxIGZpbGUgY2hhbmdlZCwgNCBpbnNlcnRpb25zKCspLCAyIGRlbGV0 aW9ucygtKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5j IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+IGluZGV4IDBlMzI2ZTcuLmZmMzg4 M2MgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ICsrKyBi L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMKPiBAQCAtMzEyNSw5ICszMTI1LDExIEBA IGludGVsX2RwX2RwY2RfcmVhZF93YWtlKHN0cnVjdCBkcm1fZHBfYXV4ICphdXgsIHVuc2lnbmVk IGludCBvZmZzZXQsCj4gIAo+ICAJZm9yIChpID0gMDsgaSA8IDM7IGkrKykgewo+ICAJCXJldCA9 IGRybV9kcF9kcGNkX3JlYWQoYXV4LCBvZmZzZXQsIGJ1ZmZlciwgc2l6ZSk7Cj4gLQkJaWYgKHJl dCA9PSBzaXplKQo+ICsJCWlmIChyZXQgPT0gc2l6ZSkgewo+ICsJCQl1c2xlZXBfcmFuZ2UoNTAw MDAsIDUwMTAwKTsKPiAgCQkJcmV0dXJuIHJldDsKPiAtCQltc2xlZXAoMSk7Cj4gKwkJfQo+ICsJ CXVzbGVlcF9yYW5nZSgxMDAwLCAxMTAwKTsKPiAgCX0KPiAgCj4gIAlyZXR1cm4gcmV0Owo+IC0t IAo+IDEuOS4xCj4gCj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KPiBJbnRlbC1nZnggbWFpbGluZyBsaXN0Cj4gSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNr dG9wLm9yZwo+IGh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8v aW50ZWwtZ2Z4CgotLSAKRGFuaWVsIFZldHRlcgpTb2Z0d2FyZSBFbmdpbmVlciwgSW50ZWwgQ29y cG9yYXRpb24KaHR0cDovL2Jsb2cuZmZ3bGwuY2gKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlz dHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4v bGlzdGluZm8vaW50ZWwtZ2Z4Cg==