From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rodrigo Vivi Subject: Re: [PATCH] drm/i915/psr: Check if VBT says PSR can be enabled. Date: Wed, 9 May 2018 06:59:12 -0700 Message-ID: <20180509135912.GF2552@intel.com> References: <20180509003524.3199-1-dhinakaran.pandiyan@intel.com> <20180509122914.GD2552@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 656FF6E87B for ; Wed, 9 May 2018 13:59:13 +0000 (UTC) Content-Disposition: inline In-Reply-To: <20180509122914.GD2552@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Dhinakaran Pandiyan Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCBNYXkgMDksIDIwMTggYXQgMDU6Mjk6MTRBTSAtMDcwMCwgUm9kcmlnbyBWaXZpIHdy b3RlOgo+IE9uIFR1ZSwgTWF5IDA4LCAyMDE4IGF0IDA1OjM1OjI0UE0gLTA3MDAsIERoaW5ha2Fy YW4gUGFuZGl5YW4gd3JvdGU6Cj4gPiBEcml2ZXIgZmVhdHVyZXMgZGF0YSBibG9jayBoYXMgYSBi b29sZWFuIGZsYWcgZm9yIFBTUiwgdXNlIHRoaXMgdG8gZGVjaWRlCj4gPiB3aGV0aGVyIFBTUiBz aG91bGQgYmUgZW5hYmxlZCBvbiBhIHBsYXRmb3JtLiBUaGUgbW9kdWxlIHBhcmFtZXRlciBjYW4K PiA+IHN0aWxsIGJlIHVzZWQgdG8gb3ZlcnJpZGUgdGhpcy4KPiA+IAo+ID4gTm90ZTogVGhlIGZl YXR1cmUgY3VycmVudGx5IHJlbWFpbnMgZGlzYWJsZWQgYnkgZGVmYXVsdCBmb3IgYWxsIHBsYXRm b3Jtcwo+ID4gaXJyZXNwZWN0aXZlIG9mIHdoYXQgVkJUIHNheXMuCj4gPiAKPiA+IENjOiBSb2Ry aWdvIFZpdmkgPHJvZHJpZ28udml2aUBpbnRlbC5jb20+Cj4gPiBTaWduZWQtb2ZmLWJ5OiBEaGlu YWthcmFuIFBhbmRpeWFuIDxkaGluYWthcmFuLnBhbmRpeWFuQGludGVsLmNvbT4KPiAKPiBSZXZp ZXdlZC1ieTogUm9kcmlnbyBWaXZpIDxyb2RyaWdvLnZpdmlAaW50ZWwuY29tPgoKcHVzaGVkIHRv IGRpbnEuIFRoYW5rcyBmb3IgdGhlIHBhdGNoLgoKPiAKPiA+IC0tLQo+ID4gIGRyaXZlcnMvZ3B1 L2RybS9pOTE1L2k5MTVfZHJ2LmggICB8IDEgKwo+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX2Jpb3MuYyB8IDEgKwo+ID4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3Bzci5jICB8 IDcgKysrKystLQo+ID4gIDMgZmlsZXMgY2hhbmdlZCwgNyBpbnNlcnRpb25zKCspLCAyIGRlbGV0 aW9ucygtKQo+ID4gCj4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9k cnYuaCBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmgKPiA+IGluZGV4IDA0ZTI3ODA2 ZTU4MS4uMjRjNWU0NzY1YWZkIDEwMDY0NAo+ID4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUv aTkxNV9kcnYuaAo+ID4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaAo+ID4g QEAgLTEwNzMsNiArMTA3Myw3IEBAIHN0cnVjdCBpbnRlbF92YnRfZGF0YSB7Cj4gPiAgCX0gZWRw Owo+ID4gIAo+ID4gIAlzdHJ1Y3Qgewo+ID4gKwkJYm9vbCBlbmFibGU7Cj4gPiAgCQlib29sIGZ1 bGxfbGluazsKPiA+ICAJCWJvb2wgcmVxdWlyZV9hdXhfd2FrZXVwOwo+ID4gIAkJaW50IGlkbGVf ZnJhbWVzOwo+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Jpb3Mu YyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Jpb3MuYwo+ID4gaW5kZXggNzAyZDNmYWI5 N2ZjLi41NDI3MGJkZGUxMDAgMTAwNjQ0Cj4gPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9iaW9zLmMKPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Jpb3MuYwo+ ID4gQEAgLTUzMCw2ICs1MzAsNyBAQCBwYXJzZV9kcml2ZXJfZmVhdHVyZXMoc3RydWN0IGRybV9p OTE1X3ByaXZhdGUgKmRldl9wcml2LAo+ID4gIAkgKi8KPiA+ICAJaWYgKCFkcml2ZXItPmRycnNf ZW5hYmxlZCkKPiA+ICAJCWRldl9wcml2LT52YnQuZHJyc190eXBlID0gRFJSU19OT1RfU1VQUE9S VEVEOwo+ID4gKwlkZXZfcHJpdi0+dmJ0LnBzci5lbmFibGUgPSBkcml2ZXItPnBzcl9lbmFibGVk Owo+ID4gIH0KPiA+ICAKPiA+ICBzdGF0aWMgdm9pZAo+ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMv Z3B1L2RybS9pOTE1L2ludGVsX3Bzci5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcHNy LmMKPiA+IGluZGV4IDYyMzNhMzIyYWFjNS4uZGIyN2YyZmFhMWRlIDEwMDY0NAo+ID4gLS0tIGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcHNyLmMKPiA+ICsrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX3Bzci5jCj4gPiBAQCAtMTE3Myw5ICsxMTczLDEyIEBAIHZvaWQgaW50ZWxf cHNyX2luaXQoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2KQo+ID4gIAlpZiAoIWRl dl9wcml2LT5wc3Iuc2lua19zdXBwb3J0KQo+ID4gIAkJcmV0dXJuOwo+ID4gIAo+ID4gLQkvKiBQ ZXIgcGxhdGZvcm0gZGVmYXVsdDogYWxsIGRpc2FibGVkLiAqLwo+ID4gLQlpZiAoaTkxNV9tb2Rw YXJhbXMuZW5hYmxlX3BzciA9PSAtMSkKPiA+ICsJaWYgKGk5MTVfbW9kcGFyYW1zLmVuYWJsZV9w c3IgPT0gLTEpIHsKPiA+ICsJCWk5MTVfbW9kcGFyYW1zLmVuYWJsZV9wc3IgPSBkZXZfcHJpdi0+ dmJ0LnBzci5lbmFibGU7Cj4gPiArCj4gPiArCQkvKiBQZXIgcGxhdGZvcm0gZGVmYXVsdDogYWxs IGRpc2FibGVkLiAqLwo+ID4gIAkJaTkxNV9tb2RwYXJhbXMuZW5hYmxlX3BzciA9IDA7Cj4gPiAr CX0KPiA+ICAKPiA+ICAJLyogU2V0IGxpbmtfc3RhbmRieSB4IGxpbmtfb2ZmIGRlZmF1bHRzICov Cj4gPiAgCWlmIChJU19IQVNXRUxMKGRldl9wcml2KSB8fCBJU19CUk9BRFdFTEwoZGV2X3ByaXYp KQo+ID4gLS0gCj4gPiAyLjE0LjEKPiA+IAo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCj4gSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdAo+IEludGVsLWdmeEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKPiBodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2ludGVsLWdmeApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m by9pbnRlbC1nZngK