From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ramalingam C <ramalingam.c@intel.com>
Subject: Re: [PATCH 1/2] drm/i915: Add psr_ready on pipe_config
Date: Mon, 30 Mar 2015 15:20:57 +0530
Message-ID: <55191C81.5060205@intel.com>
References: <55141CAB.4030208@intel.com>
 <1427397626-1843-1-git-send-email-rodrigo.vivi@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga01.intel.com (mga01.intel.com [192.55.52.88])
 by gabe.freedesktop.org (Postfix) with ESMTP id 2D6DC6E573
 for <intel-gfx@lists.freedesktop.org>; Mon, 30 Mar 2015 02:56:47 -0700 (PDT)
In-Reply-To: <1427397626-1843-1-git-send-email-rodrigo.vivi@intel.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: Rodrigo Vivi <rodrigo.vivi@intel.com>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org

TG9va3MgZ29vZCB0byBtZS4uCgpSZXZpZXdlZC1ieTogUmFtYWxpbmdhbSBDIDxyYW1hbGluZ2Ft
LmNAaW50ZWwuY29tPgoKT24gRnJpZGF5IDI3IE1hcmNoIDIwMTUgMTI6NTAgQU0sIFJvZHJpZ28g
Vml2aSB3cm90ZToKPiBMZXQncyBrbm93IGJlZm9yZWhhbmQgaWYgUFNSIGlzIHJlYWR5IGFuZCB3
aWxsIGJlIGVuYWJsZWQgc28gd2UgY2FuCj4gcHJldmVudCBEUlJTIHRvIGdldCBlbmFibGVkLgo+
Cj4gdjI6IFJlbW92aW5nIGlzX2VkcF9wc3IgZnVuYyB0aGF0IGlzIG5vdCB1c2VkIGFmdGVyIHRo
aXMgcGF0Y2guCj4gICAgICBSZW5hbWUgbWF0Y2hfY29uZGl0aW9ucyBhbmQgZG9jdW1lbnQgaXQg
c2luY2UgaXQgaXMgbm93IGV4dGVybmFsLgo+ICAgICAgTW92aW5nIHRvIGEgcHJvcHBlciBwbGFj
ZSBhcyBwb2ludGVkIG91dCBieSBTaXZha3VtYXIuCj4gICAgICBVc2UgYSBiZXR0ZXIgbmFtZSBh
cyBwb2ludGVkIG91dCBieSBSYW0uCj4KPiBDYzogU2l2YWt1bWFyIFRodWxhc2ltYW5pIDxzaXZh
a3VtYXIudGh1bGFzaW1hbmlAaW50ZWwuY29tPgo+IENjOiBSYW1hbGluZ2FtIEMgPHJhbWFsaW5n
YW0uY0BpbnRlbC5jb20+Cj4gU2lnbmVkLW9mZi1ieTogUm9kcmlnbyBWaXZpIDxyb2RyaWdvLnZp
dmlAaW50ZWwuY29tPgo+IC0tLQo+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxh
eS5jIHwgIDEgKwo+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYyAgICAgIHwgIDIg
KysKPiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rydi5oICAgICB8ICAyICsrCj4gICBk
cml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wc3IuYyAgICAgfCA1MCArKysrKysrKysrKysrKysr
KysrKystLS0tLS0tLS0tLS0tLS0KPiAgIDQgZmlsZXMgY2hhbmdlZCwgMzUgaW5zZXJ0aW9ucygr
KSwgMjAgZGVsZXRpb25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUv
aW50ZWxfZGlzcGxheS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4g
aW5kZXggMzVjZGI0OC4uOTExMmFkOSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkx
NS9pbnRlbF9kaXNwbGF5LmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kaXNw
bGF5LmMKPiBAQCAtMTAzNjcsNiArMTAzNjcsNyBAQCBzdGF0aWMgdm9pZCBpbnRlbF9kdW1wX3Bp
cGVfY29uZmlnKHN0cnVjdCBpbnRlbF9jcnRjICpjcnRjLAo+ICAgCQkgICAgICBwaXBlX2NvbmZp
Zy0+cGNoX3BmaXQucG9zLAo+ICAgCQkgICAgICBwaXBlX2NvbmZpZy0+cGNoX3BmaXQuc2l6ZSwK
PiAgIAkJICAgICAgcGlwZV9jb25maWctPnBjaF9wZml0LmVuYWJsZWQgPyAiZW5hYmxlZCIgOiAi
ZGlzYWJsZWQiKTsKPiArCURSTV9ERUJVR19LTVMoInBzciByZWFkeTogJWlcbiIsIHBpcGVfY29u
ZmlnLT5wc3JfcmVhZHkpOwo+ICAgCURSTV9ERUJVR19LTVMoImlwczogJWlcbiIsIHBpcGVfY29u
ZmlnLT5pcHNfZW5hYmxlZCk7Cj4gICAJRFJNX0RFQlVHX0tNUygiZG91YmxlIHdpZGU6ICVpXG4i
LCBwaXBlX2NvbmZpZy0+ZG91YmxlX3dpZGUpOwo+ICAgfQo+IGRpZmYgLS1naXQgYS9kcml2ZXJz
L2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAu
Ywo+IGluZGV4IDYzN2RkNTMuLmU2YjFjNDIgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJt
L2k5MTUvaW50ZWxfZHAuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RwLmMK
PiBAQCAtMTM4OCw2ICsxMzg4LDggQEAgaW50ZWxfZHBfY29tcHV0ZV9jb25maWcoc3RydWN0IGlu
dGVsX2VuY29kZXIgKmVuY29kZXIsCj4gICAJCSAqLwo+ICAgCQltaW5fbGFuZV9jb3VudCA9IG1h
eF9sYW5lX2NvdW50Owo+ICAgCQltaW5fY2xvY2sgPSBtYXhfY2xvY2s7Cj4gKwo+ICsJCXBpcGVf
Y29uZmlnLT5wc3JfcmVhZHkgPSBpbnRlbF9wc3JfcmVhZHkoaW50ZWxfZHApOwo+ICAgCX0KPiAg
IAo+ICAgCWZvciAoOyBicHAgPj0gNiozOyBicHAgLT0gMiozKSB7Cj4gZGlmZiAtLWdpdCBhL2Ry
aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rydi5oIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50
ZWxfZHJ2LmgKPiBpbmRleCBjMGZhMWNiLi4yNTBkNzBjIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMv
Z3B1L2RybS9pOTE1L2ludGVsX2Rydi5oCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50
ZWxfZHJ2LmgKPiBAQCAtMzg0LDYgKzM4NCw3IEBAIHN0cnVjdCBpbnRlbF9jcnRjX3N0YXRlIHsK
PiAgIAlpbnQgZmRpX2xhbmVzOwo+ICAgCXN0cnVjdCBpbnRlbF9saW5rX21fbiBmZGlfbV9uOwo+
ICAgCj4gKwlib29sIHBzcl9yZWFkeTsKPiAgIAlib29sIGlwc19lbmFibGVkOwo+ICAgCj4gICAJ
Ym9vbCBkb3VibGVfd2lkZTsKPiBAQCAtMTIwNiw2ICsxMjA3LDcgQEAgdm9pZCBpbnRlbF9iYWNr
bGlnaHRfdW5yZWdpc3RlcihzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KTsKPiAgIAo+ICAgCj4gICAv
KiBpbnRlbF9wc3IuYyAqLwo+ICtib29sIGludGVsX3Bzcl9yZWFkeShzdHJ1Y3QgaW50ZWxfZHAg
KmludGVsX2RwKTsKPiAgIHZvaWQgaW50ZWxfcHNyX2VuYWJsZShzdHJ1Y3QgaW50ZWxfZHAgKmlu
dGVsX2RwKTsKPiAgIHZvaWQgaW50ZWxfcHNyX2Rpc2FibGUoc3RydWN0IGludGVsX2RwICppbnRl
bF9kcCk7Cj4gICB2b2lkIGludGVsX3Bzcl9pbnZhbGlkYXRlKHN0cnVjdCBkcm1fZGV2aWNlICpk
ZXYsCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3Bzci5jIGIvZHJp
dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcHNyLmMKPiBpbmRleCBjMWNhOTIzLi4yZjIyYWI2IDEw
MDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3Bzci5jCj4gKysrIGIvZHJp
dmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcHNyLmMKPiBAQCAtNTYsMTEgKzU2LDYgQEAKPiAgICNp
bmNsdWRlICJpbnRlbF9kcnYuaCIKPiAgICNpbmNsdWRlICJpOTE1X2Rydi5oIgo+ICAgCj4gLXN0
YXRpYyBib29sIGlzX2VkcF9wc3Ioc3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKPiAtewo+IC0J
cmV0dXJuIGludGVsX2RwLT5wc3JfZHBjZFswXSAmIERQX1BTUl9JU19TVVBQT1JURUQ7Cj4gLX0K
PiAtCj4gICBzdGF0aWMgYm9vbCB2bHZfaXNfcHNyX2FjdGl2ZV9vbl9waXBlKHN0cnVjdCBkcm1f
ZGV2aWNlICpkZXYsIGludCBwaXBlKQo+ICAgewo+ICAgCXN0cnVjdCBkcm1faTkxNV9wcml2YXRl
ICpkZXZfcHJpdiA9IGRldi0+ZGV2X3ByaXZhdGU7Cj4gQEAgLTI0OSw3ICsyNDQsMTkgQEAgc3Rh
dGljIHZvaWQgaHN3X3Bzcl9lbmFibGVfc291cmNlKHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHAp
Cj4gICAJCSAgIEVEUF9QU1JfRU5BQkxFKTsKPiAgIH0KPiAgIAo+IC1zdGF0aWMgYm9vbCBpbnRl
bF9wc3JfbWF0Y2hfY29uZGl0aW9ucyhzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+ICsvKioK
PiArICogaW50ZWxfcHNyX3JlYWR5IC0gUFNSIHJlYWR5Cj4gKyAqIEBpbnRlbF9kcDogSW50ZWwg
RFAKPiArICoKPiArICogVGhpcyBmdW5jdGlvbiBDaGVja3MgaWYgUFNSIGlzIHN1cHBvcnRlZCBi
eSBIYXJkd2FyZS9Tb3VyY2UgYW5kCj4gKyAqIFBhbmVsL1NpbmsgYW5kIGlmIGFsbCBjb25kaXRp
b25zIHRvIGJlIGVuYWJsZWQgYXJlIGZ1bGZpbGxlZC4KPiArICoKPiArICogSXQgaXMgdXNlZCB0
byBrbm93IGJlZm9yZWhhbmQgaWYgUFNSIGlzIGdvaW5nIHRvIGJlIGVuYWJsZWQuCj4gKyAqCj4g
KyAqIFJldHVybnM6Cj4gKyAqIFRydWUgd2hlbiBQU1IgaXMgcmVhZHkgdG8gYmUgZW5hYmxlZCwg
ZmFsc2Ugb3RoZXJ3aXNlLgo+ICsgKi8KPiArYm9vbCBpbnRlbF9wc3JfcmVhZHkoc3RydWN0IGlu
dGVsX2RwICppbnRlbF9kcCkKPiAgIHsKPiAgIAlzdHJ1Y3QgaW50ZWxfZGlnaXRhbF9wb3J0ICpk
aWdfcG9ydCA9IGRwX3RvX2RpZ19wb3J0KGludGVsX2RwKTsKPiAgIAlzdHJ1Y3QgZHJtX2Rldmlj
ZSAqZGV2ID0gZGlnX3BvcnQtPmJhc2UuYmFzZS5kZXY7Cj4gQEAgLTI1NywxMiArMjY0LDE0IEBA
IHN0YXRpYyBib29sIGludGVsX3Bzcl9tYXRjaF9jb25kaXRpb25zKHN0cnVjdCBpbnRlbF9kcCAq
aW50ZWxfZHApCj4gICAJc3RydWN0IGRybV9jcnRjICpjcnRjID0gZGlnX3BvcnQtPmJhc2UuYmFz
ZS5jcnRjOwo+ICAgCXN0cnVjdCBpbnRlbF9jcnRjICppbnRlbF9jcnRjID0gdG9faW50ZWxfY3J0
YyhjcnRjKTsKPiAgIAo+IC0JbG9ja2RlcF9hc3NlcnRfaGVsZCgmZGV2X3ByaXYtPnBzci5sb2Nr
KTsKPiArCWlmICghSEFTX1BTUihkZXYpKSB7Cj4gKwkJRFJNX0RFQlVHX0tNUygiUFNSIG5vdCBz
dXBwb3J0ZWQgb24gdGhpcyBwbGF0Zm9ybVxuIik7Cj4gKwkJcmV0dXJuIGZhbHNlOwo+ICsJfQo+
ICsKPiAgIAlXQVJOX09OKCFkcm1fbW9kZXNldF9pc19sb2NrZWQoJmRldi0+bW9kZV9jb25maWcu
Y29ubmVjdGlvbl9tdXRleCkpOwo+ICAgCVdBUk5fT04oIWRybV9tb2Rlc2V0X2lzX2xvY2tlZCgm
Y3J0Yy0+bXV0ZXgpKTsKPiAgIAo+IC0JZGV2X3ByaXYtPnBzci5zb3VyY2Vfb2sgPSBmYWxzZTsK
PiAtCj4gICAJaWYgKElTX0hBU1dFTEwoZGV2KSAmJiBkaWdfcG9ydC0+cG9ydCAhPSBQT1JUX0Ep
IHsKPiAgIAkJRFJNX0RFQlVHX0tNUygiSFNXIHRpZXMgUFNSIHRvIERESSBBIChlRFApXG4iKTsK
PiAgIAkJcmV0dXJuIGZhbHNlOwo+IEBAIC0yOTIsMTAgKzMwMSwxOSBAQCBzdGF0aWMgYm9vbCBp
bnRlbF9wc3JfbWF0Y2hfY29uZGl0aW9ucyhzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+ICAg
CQlyZXR1cm4gZmFsc2U7Cj4gICAJfQo+ICAgCj4gKwkvKiBBdCB0aGlzIHBvaW50IHdlIGNhbiB0
ZWxsIEhXL1NvdXJjZSBzdXBwb3J0cyBQU1IgKi8KPiAgIAlkZXZfcHJpdi0+cHNyLnNvdXJjZV9v
ayA9IHRydWU7Cj4gKwo+ICsJLyogTm93IGNoZWNrIGlmIFBhbmVsL1Npbmsgc3VwcG9ydHMgaXQg
Ki8KPiArCWlmICghZGV2X3ByaXYtPnBzci5zaW5rX3N1cHBvcnQpIHsKPiArCQlEUk1fREVCVUdf
S01TKCJQU1Igbm90IHN1cHBvcnRlZCBieSB0aGlzIHBhbmVsXG4iKTsKPiArCQlyZXR1cm4gZmFs
c2U7Cj4gKwl9Cj4gKwo+ICAgCXJldHVybiB0cnVlOwo+ICAgfQo+ICAgCj4gKwo+ICAgc3RhdGlj
IHZvaWQgaW50ZWxfcHNyX2FjdGl2YXRlKHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHApCj4gICB7
Cj4gICAJc3RydWN0IGludGVsX2RpZ2l0YWxfcG9ydCAqaW50ZWxfZGlnX3BvcnQgPSBkcF90b19k
aWdfcG9ydChpbnRlbF9kcCk7Cj4gQEAgLTMzMCwxNiArMzQ4LDExIEBAIHZvaWQgaW50ZWxfcHNy
X2VuYWJsZShzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+ICAgCXN0cnVjdCBpbnRlbF9kaWdp
dGFsX3BvcnQgKmludGVsX2RpZ19wb3J0ID0gZHBfdG9fZGlnX3BvcnQoaW50ZWxfZHApOwo+ICAg
CXN0cnVjdCBkcm1fZGV2aWNlICpkZXYgPSBpbnRlbF9kaWdfcG9ydC0+YmFzZS5iYXNlLmRldjsK
PiAgIAlzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYgPSBkZXYtPmRldl9wcml2YXRl
Owo+ICsJc3RydWN0IGludGVsX2NydGMgKmludGVsX2NydGMgPQo+ICsJCXRvX2ludGVsX2NydGMo
aW50ZWxfZGlnX3BvcnQtPmJhc2UuYmFzZS5jcnRjKTsKPiAgIAo+IC0JaWYgKCFIQVNfUFNSKGRl
dikpIHsKPiAtCQlEUk1fREVCVUdfS01TKCJQU1Igbm90IHN1cHBvcnRlZCBvbiB0aGlzIHBsYXRm
b3JtXG4iKTsKPiAtCQlyZXR1cm47Cj4gLQl9Cj4gLQo+IC0JaWYgKCFpc19lZHBfcHNyKGludGVs
X2RwKSkgewo+IC0JCURSTV9ERUJVR19LTVMoIlBTUiBub3Qgc3VwcG9ydGVkIGJ5IHRoaXMgcGFu
ZWxcbiIpOwo+ICsJaWYgKCFpbnRlbF9jcnRjLT5jb25maWctPnBzcl9yZWFkeSkKPiAgIAkJcmV0
dXJuOwo+IC0JfQo+ICAgCj4gICAJbXV0ZXhfbG9jaygmZGV2X3ByaXYtPnBzci5sb2NrKTsKPiAg
IAlpZiAoZGV2X3ByaXYtPnBzci5lbmFibGVkKSB7Cj4gQEAgLTM0Nyw5ICszNjAsNiBAQCB2b2lk
IGludGVsX3Bzcl9lbmFibGUoc3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKPiAgIAkJZ290byB1
bmxvY2s7Cj4gICAJfQo+ICAgCj4gLQlpZiAoIWludGVsX3Bzcl9tYXRjaF9jb25kaXRpb25zKGlu
dGVsX2RwKSkKPiAtCQlnb3RvIHVubG9jazsKPiAtCj4gICAJZGV2X3ByaXYtPnBzci5idXN5X2Zy
b250YnVmZmVyX2JpdHMgPSAwOwo+ICAgCj4gICAJaWYgKEhBU19EREkoZGV2KSkgewoKLS0gClRo
YW5rcywKLS1SYW0KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f
X19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9y
ZwpodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4
Cg==