From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] drm/i915: Read power well status before other registers for drpc info Date: Thu, 20 Nov 2014 10:26:58 +0100 Message-ID: <20141120092658.GD25711@phenom.ffwll.local> References: <1416420462-27925-1-git-send-email-ville.syrjala@linux.intel.com> <546EB0CA.2040600@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wg0-f54.google.com (mail-wg0-f54.google.com [74.125.82.54]) by gabe.freedesktop.org (Postfix) with ESMTP id 4FFEE6EE18 for ; Thu, 20 Nov 2014 01:26:36 -0800 (PST) Received: by mail-wg0-f54.google.com with SMTP id y10so3122593wgg.41 for ; Thu, 20 Nov 2014 01:26:34 -0800 (PST) Content-Disposition: inline In-Reply-To: <546EB0CA.2040600@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: Deepak S Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCBOb3YgMjEsIDIwMTQgYXQgMDg6NTY6MDJBTSArMDUzMCwgRGVlcGFrIFMgd3JvdGU6 Cj4gCj4gT24gV2VkbmVzZGF5IDE5IE5vdmVtYmVyIDIwMTQgMTE6MzcgUE0sIHZpbGxlLnN5cmph bGFAbGludXguaW50ZWwuY29tIHdyb3RlOgo+ID5Gcm9tOiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxl LnN5cmphbGFAbGludXguaW50ZWwuY29tPgo+ID4KPiA+VHJ5aW5nIHRvIHJlYWQgdGhlIHN0YXR1 cyBvZiB0aGUgcG93ZXIgd2VsbHMgcmlnaHQgYWZ0ZXIgdGFraW5nIGZvcmNld2FrZQo+ID5mb3Ig dGhlIG90aGVyIHJlZ2lzdGVyIHJlYWRzIG1ha2VzIGxpdHRsZSBzZW5zZS4gTW9zdCBvZiB0aGUg dGltZSB0aGUKPiA+cG93ZXIgd2VsbHMgd2lsbCBzdGlsbCBiZSB1cCBkdWUgdG8gdGhlIHJlY2Vu dCBmb3JjZXdha2UuIEluc3RlYWQgZG8gdGhlCj4gPnBvd2VyIHdlbGwgc3RhdHVzIHJlYWQgZmly c3QsIGFuZCBvbmx5IHRoZW4gcmVhZCB0aGUgcmVnaXN0ZXIgbmVlZGluZwo+ID5mb3JjZXdha2Uu IFRoaXMgd2F5IHRoZSByZXBvcnRlZCBwb3dlciB3ZWxsIHN0YXR1cyBjYW4gYWN0dWFsbHkgcmVm bGVjdAo+ID53aGF0J3MgZ29pbmcgb24gaW4gdGhlIHN5c3RlbS4KPiA+Cj4gPkNjOiBEZWVwYWsg UyA8ZGVlcGFrLnNAaW50ZWwuY29tPgo+ID5TaWduZWQtb2ZmLWJ5OiBWaWxsZSBTeXJqw6Rsw6Qg PHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tPgo+ID4tLS0KPiA+ICBkcml2ZXJzL2dwdS9k cm0vaTkxNS9pOTE1X2RlYnVnZnMuYyB8IDkgKysrKy0tLS0tCj4gPiAgMSBmaWxlIGNoYW5nZWQs IDQgaW5zZXJ0aW9ucygrKSwgNSBkZWxldGlvbnMoLSkKPiA+Cj4gPmRpZmYgLS1naXQgYS9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2RlYnVnZnMuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5 MTVfZGVidWdmcy5jCj4gPmluZGV4IDMxOWRhNjEuLjJkNGY4NzAgMTAwNjQ0Cj4gPi0tLSBhL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZGVidWdmcy5jCj4gPisrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2k5MTVfZGVidWdmcy5jCj4gPkBAIC0xMjQwLDExICsxMjQwLDEyIEBAIHN0YXRpYyBp bnQgdmx2X2RycGNfaW5mbyhzdHJ1Y3Qgc2VxX2ZpbGUgKm0pCj4gPiAgCXN0cnVjdCBkcm1faW5m b19ub2RlICpub2RlID0gbS0+cHJpdmF0ZTsKPiA+ICAJc3RydWN0IGRybV9kZXZpY2UgKmRldiA9 IG5vZGUtPm1pbm9yLT5kZXY7Cj4gPiAgCXN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJp diA9IGRldi0+ZGV2X3ByaXZhdGU7Cj4gPi0JdTMyIHJwbW9kZWN0bDEsIHJjY3RsMTsKPiA+Kwl1 MzIgcnBtb2RlY3RsMSwgcmNjdGwxLCBwd19zdGF0dXM7Cj4gPiAgCXVuc2lnbmVkIGZ3X3JlbmRl cmNvdW50ID0gMCwgZndfbWVkaWFjb3VudCA9IDA7Cj4gPiAgCWludGVsX3J1bnRpbWVfcG1fZ2V0 KGRldl9wcml2KTsKPiA+Kwlwd19zdGF0dXMgPSBJOTE1X1JFQUQoVkxWX0dUTENfUFdfU1RBVFVT KTsKPiA+ICAJcnBtb2RlY3RsMSA9IEk5MTVfUkVBRChHRU42X1JQX0NPTlRST0wpOwo+ID4gIAly Y2N0bDEgPSBJOTE1X1JFQUQoR0VONl9SQ19DT05UUk9MKTsKPiA+QEAgLTEyNjMsMTEgKzEyNjQs OSBAQCBzdGF0aWMgaW50IHZsdl9kcnBjX2luZm8oc3RydWN0IHNlcV9maWxlICptKQo+ID4gIAkJ ICAgeWVzbm8ocmNjdGwxICYgKEdFTjdfUkNfQ1RMX1RPX01PREUgfAo+ID4gIAkJCQkJR0VONl9S Q19DVExfRUlfTU9ERSgxKSkpKTsKPiA+ICAJc2VxX3ByaW50ZihtLCAiUmVuZGVyIFBvd2VyIFdl bGw6ICVzXG4iLAo+ID4tCQkJKEk5MTVfUkVBRChWTFZfR1RMQ19QV19TVEFUVVMpICYKPiA+LQkJ CQlWTFZfR1RMQ19QV19SRU5ERVJfU1RBVFVTX01BU0spID8gIlVwIiA6ICJEb3duIik7Cj4gPisJ CSAgIChwd19zdGF0dXMgJiBWTFZfR1RMQ19QV19SRU5ERVJfU1RBVFVTX01BU0spID8gIlVwIiA6 ICJEb3duIik7Cj4gPiAgCXNlcV9wcmludGYobSwgIk1lZGlhIFBvd2VyIFdlbGw6ICVzXG4iLAo+ ID4tCQkJKEk5MTVfUkVBRChWTFZfR1RMQ19QV19TVEFUVVMpICYKPiA+LQkJCQlWTFZfR1RMQ19Q V19NRURJQV9TVEFUVVNfTUFTSykgPyAiVXAiIDogIkRvd24iKTsKPiA+KwkJICAgKHB3X3N0YXR1 cyAmIFZMVl9HVExDX1BXX01FRElBX1NUQVRVU19NQVNLKSA/ICJVcCIgOiAiRG93biIpOwo+ID4g IAlzZXFfcHJpbnRmKG0sICJSZW5kZXIgUkM2IHJlc2lkZW5jeSBzaW5jZSBib290OiAldVxuIiwK PiA+ICAJCSAgIEk5MTVfUkVBRChWTFZfR1RfUkVOREVSX1JDNikpOwo+IAo+IFJldmlld2VkLWJ5 OiBEZWVwYWsgUzxkZWVwYWsuc0BsaW51eC5pbnRlbC5jb20+CgpRdWV1ZWQgZm9yIC1uZXh0LCB0 aGFua3MgZm9yIHRoZSBwYXRjaC4KLURhbmllbAotLSAKRGFuaWVsIFZldHRlcgpTb2Z0d2FyZSBF bmdpbmVlciwgSW50ZWwgQ29ycG9yYXRpb24KKzQxICgwKSA3OSAzNjUgNTcgNDggLSBodHRwOi8v YmxvZy5mZndsbC5jaApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdm eAo=