From mboxrd@z Thu Jan 1 00:00:00 1970 From: sonika Subject: Re: [PATCH] drm/i915/skl: Enabling PSR on Skylake Date: Mon, 19 Jan 2015 17:10:58 +0530 Message-ID: <54BCED4A.6040805@intel.com> References: <1421397446-25212-1-git-send-email-sonika.jindal@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 5EA876E571 for ; Mon, 19 Jan 2015 03:47:57 -0800 (PST) In-Reply-To: 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 , Rodrigo Vivi List-Id: intel-gfx@lists.freedesktop.org Ck9uIFNhdHVyZGF5IDE3IEphbnVhcnkgMjAxNSAwOTo1NCBBTSwgRGFuaWVsIFZldHRlciB3cm90 ZToKPiBPbiBGcmksIEphbiAxNiwgMjAxNSBhdCAwMjowNzoyNlBNICswNTMwLCBTb25pa2EgSmlu ZGFsIHdyb3RlOgo+PiBNYWlubHkgdGFraW5nIGNhcmUgb2Ygc29tZSByZWdpc3RlciBvZmZzZXRz LCBvdGhlcndpc2UgdGhpbmdzIGFyZSBzaW1pbGFyIHRvCj4+IGhzdy4gQWxzbywgcHJvZ3JhbW1p bmcgZGRpIGF1eCB0byB1c2UgaGFyZGNvZGVkIHZhbHVlcyBmb3IgcHNyIGRhdGEgc2VsZWN0Lgo+ Pgo+PiB2MjogaW50cm9kdWNlICBFRFBfUFNSX0FVWF9CQVNFIG1hY3JvIChDaHJpcykKPj4gdjM6 IE1vdmluZyB0byBIVyB0cmFja2luZyBmb3IgU0tMKyBwbGF0Zm9ybXMsIHNvIGFjdGl2YXRpbmcg c291cmNlIHBzciBkdXJpbmcKPj4gcHNyX2VuYWJsaW5nIGFuZCB0aGVuIGF2b2lkaW5nIHBzciBl bnRyaWVzIGFuZCBleGl0cyBmb3IgZWFjaCBmcm9udGJ1ZmZlcgo+PiB1cGRhdGVzLgo+Pgo+PiBT aWduZWQtb2ZmLWJ5OiBTb25pa2EgSmluZGFsIDxzb25pa2EuamluZGFsQGludGVsLmNvbT4KPj4g LS0tCj4+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaCAgICAgICAgICB8ICAgIDMg KystCj4+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9yZWcuaCAgICAgICAgICB8ICAgMTkg KysrKysrKysrKysrKy0tLS0tLQo+PiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Zyb250 YnVmZmVyLmMgfCAgICA3ICsrKysrLS0KPj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9w c3IuYyAgICAgICAgIHwgICAxOCArKysrKysrKysrKysrKysrKy0KPj4gICA0IGZpbGVzIGNoYW5n ZWQsIDM3IGluc2VydGlvbnMoKyksIDEwIGRlbGV0aW9ucygtKQo+Pgo+PiBkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaCBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5 MTVfZHJ2LmgKPj4gaW5kZXggNDJjNjljYS4uZWU1Y2QzYiAxMDA2NDQKPj4gLS0tIGEvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaAo+PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p OTE1X2Rydi5oCj4+IEBAIC0yMzU1LDcgKzIzNTUsOCBAQCBzdHJ1Y3QgZHJtX2k5MTVfY21kX3Rh YmxlIHsKPj4gICAjZGVmaW5lIEhBU19EREkoZGV2KSAoSU5URUxfSU5GTyhkZXYpLT5oYXNfZGRp KQo+PiAgICNkZWZpbmUgSEFTX0ZQR0FfREJHX1VOQ0xBSU1FRChkZXYpIChJTlRFTF9JTkZPKGRl diktPmhhc19mcGdhX2RiZykKPj4gICAjZGVmaW5lIEhBU19QU1IoZGV2KSAoSVNfSEFTV0VMTChk ZXYpIHx8IElTX0JST0FEV0VMTChkZXYpIHx8IFwKPj4gLSBJU19WQUxMRVlWSUVXKGRldikgfHwg SVNfQ0hFUlJZVklFVyhkZXYpKQo+PiArIElTX1ZBTExFWVZJRVcoZGV2KSB8fCBJU19DSEVSUllW SUVXKGRldikgfHwgXAo+PiArIElTX1NLWUxBS0UoZGV2KSkKPj4gICAjZGVmaW5lIEhBU19SVU5U SU1FX1BNKGRldikgKElTX0dFTjYoZGV2KSB8fCBJU19IQVNXRUxMKGRldikgfHwgXAo+PiAgICBJ U19CUk9BRFdFTEwoZGV2KSB8fCBJU19WQUxMRVlWSUVXKGRldikpCj4+ICAgI2RlZmluZSBIQVNf UkM2KGRldikgKElOVEVMX0lORk8oZGV2KS0+Z2VuID49IDYpCj4+IGRpZmYgLS1naXQgYS9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3JlZy5oIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9y ZWcuaAo+PiBpbmRleCBhODI4Y2Y1Li4wNjhjOGRhIDEwMDY0NAo+PiAtLS0gYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pOTE1X3JlZy5oCj4+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf cmVnLmgKPj4gQEAgLTI2MTksMTIgKzI2MTksMTQgQEAgZW51bSBza2xfZGlzcF9wb3dlcl93ZWxs cyB7Cj4+ICAgI2RlZmluZSAgIEVEUF9QU1JfVFAxX1RJTUVfMHVzICgzPDw0KQo+PiAgICNkZWZp bmUgICBFRFBfUFNSX0lETEVfRlJBTUVfU0hJRlQgMAo+Pgo+PiAtI2RlZmluZSBFRFBfUFNSX0FV WF9DVEwoZGV2KSAoRURQX1BTUl9CQVNFKGRldikgKyAweDEwKQo+PiAtI2RlZmluZSBFRFBfUFNS X0FVWF9EQVRBMShkZXYpIChFRFBfUFNSX0JBU0UoZGV2KSArIDB4MTQpCj4+IC0jZGVmaW5lIEVE UF9QU1JfQVVYX0RBVEEyKGRldikgKEVEUF9QU1JfQkFTRShkZXYpICsgMHgxOCkKPj4gLSNkZWZp bmUgRURQX1BTUl9BVVhfREFUQTMoZGV2KSAoRURQX1BTUl9CQVNFKGRldikgKyAweDFjKQo+PiAt I2RlZmluZSBFRFBfUFNSX0FVWF9EQVRBNChkZXYpIChFRFBfUFNSX0JBU0UoZGV2KSArIDB4MjAp Cj4+IC0jZGVmaW5lIEVEUF9QU1JfQVVYX0RBVEE1KGRldikgKEVEUF9QU1JfQkFTRShkZXYpICsg MHgyNCkKPj4gKyNkZWZpbmUgRURQX1BTUl9BVVhfQkFTRShkZXYpIChJTlRFTF9JTkZPKGRldikt PmdlbiA+PSA5ID8gXAo+PiArIDB4NjQwMDAgOiBFRFBfUFNSX0JBU0UoZGV2KSkKPj4gKyNkZWZp bmUgRURQX1BTUl9BVVhfQ1RMKGRldikgKEVEUF9QU1JfQVVYX0JBU0UoZGV2KSArIDB4MTApCj4+ ICsjZGVmaW5lIEVEUF9QU1JfQVVYX0RBVEExKGRldikgKEVEUF9QU1JfQVVYX0JBU0UoZGV2KSAr IDB4MTQpCj4+ICsjZGVmaW5lIEVEUF9QU1JfQVVYX0RBVEEyKGRldikgKEVEUF9QU1JfQVVYX0JB U0UoZGV2KSArIDB4MTgpCj4+ICsjZGVmaW5lIEVEUF9QU1JfQVVYX0RBVEEzKGRldikgKEVEUF9Q U1JfQVVYX0JBU0UoZGV2KSArIDB4MWMpCj4+ICsjZGVmaW5lIEVEUF9QU1JfQVVYX0RBVEE0KGRl dikgKEVEUF9QU1JfQVVYX0JBU0UoZGV2KSArIDB4MjApCj4+ICsjZGVmaW5lIEVEUF9QU1JfQVVY X0RBVEE1KGRldikgKEVEUF9QU1JfQVVYX0JBU0UoZGV2KSArIDB4MjQpCj4+Cj4+ICAgI2RlZmlu ZSBFRFBfUFNSX1NUQVRVU19DVEwoZGV2KSAoRURQX1BTUl9CQVNFKGRldikgKyAweDQwKQo+PiAg ICNkZWZpbmUgICBFRFBfUFNSX1NUQVRVU19TVEFURV9NQVNLICg3PDwyOSkKPj4gQEAgLTM3NzEs NiArMzc3MywxMSBAQCBlbnVtIHNrbF9kaXNwX3Bvd2VyX3dlbGxzIHsKPj4gICAjZGVmaW5lICAg RFBfQVVYX0NIX0NUTF9QUkVDSEFSR0VfVEVTVCAgICAoMSA8PCAxMSkKPj4gICAjZGVmaW5lICAg RFBfQVVYX0NIX0NUTF9CSVRfQ0xPQ0tfMlhfTUFTSyAgICAoMHg3ZmYpCj4+ICAgI2RlZmluZSAg IERQX0FVWF9DSF9DVExfQklUX0NMT0NLXzJYX1NISUZUICAgMAo+PiArI2RlZmluZSAgIERQX0FV WF9DSF9DVExfUFNSX0RBVEFfQVVYX1JFR19TS0wgKDEgPDwgMTQpCj4+ICsjZGVmaW5lICAgRFBf QVVYX0NIX0NUTF9GU19EQVRBX0FVWF9SRUdfU0tMICgxIDw8IDEzKQo+PiArI2RlZmluZSAgIERQ X0FVWF9DSF9DVExfR1RDX0RBVEFfQVVYX1JFR19TS0wgKDEgPDwgMTIpCj4+ICsjZGVmaW5lICAg RFBfQVVYX0NIX0NUTF9GV19TWU5DX1BVTFNFX1NLTF9NQVNLICgxZiA8PCA1KQo+PiArI2RlZmlu ZSAgIERQX0FVWF9DSF9DVExfRldfU1lOQ19QVUxTRV9TS0woYykgKCgoYykgLSAxKSA8PCA1KQo+ PiAgICNkZWZpbmUgICBEUF9BVVhfQ0hfQ1RMX1NZTkNfUFVMU0VfU0tMKGMpICAgKChjKSAtIDEp Cj4+Cj4+ICAgLyoKPj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Zy b250YnVmZmVyLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9mcm9udGJ1ZmZlci5jCj4+ IGluZGV4IDc5ZjZkNzIuLjAxMGQ1NTAgMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9p OTE1L2ludGVsX2Zyb250YnVmZmVyLmMKPj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfZnJvbnRidWZmZXIuYwo+PiBAQCAtMTU2LDcgKzE1Niw5IEBAIHZvaWQgaW50ZWxfZmJfb2Jq X2ludmFsaWRhdGUoc3RydWN0IGRybV9pOTE1X2dlbV9vYmplY3QgKm9iaiwKPj4KPj4gICAgaW50 ZWxfbWFya19mYl9idXN5KGRldiwgb2JqLT5mcm9udGJ1ZmZlcl9iaXRzLCByaW5nKTsKPj4KPj4g LSBpbnRlbF9wc3JfaW52YWxpZGF0ZShkZXYsIG9iai0+ZnJvbnRidWZmZXJfYml0cyk7Cj4+ICsK Pj4gKyBpZiAoSU5URUxfSU5GTyhkZXYpLT5nZW4gPCA5KQo+PiArIGludGVsX3Bzcl9pbnZhbGlk YXRlKGRldiwgb2JqLT5mcm9udGJ1ZmZlcl9iaXRzKTsKPj4gICB9Cj4+Cj4+ICAgLyoqCj4+IEBA IC0xODIsNyArMTg0LDggQEAgdm9pZCBpbnRlbF9mcm9udGJ1ZmZlcl9mbHVzaChzdHJ1Y3QgZHJt X2RldmljZSAqZGV2LAo+Pgo+PiAgICBpbnRlbF9tYXJrX2ZiX2J1c3koZGV2LCBmcm9udGJ1ZmZl cl9iaXRzLCBOVUxMKTsKPj4KPj4gLSBpbnRlbF9wc3JfZmx1c2goZGV2LCBmcm9udGJ1ZmZlcl9i aXRzKTsKPj4gKyBpZiAoSU5URUxfSU5GTyhkZXYpLT5nZW4gPCA5KQo+PiArIGludGVsX3Bzcl9m bHVzaChkZXYsIGZyb250YnVmZmVyX2JpdHMpOwo+IEknbSBwcmV0dHkgc3VyZSB0aGUgaHcgaXNu J3QgZ29vZCBlbm91Z2ggeWV0IHRvIGRldGVjdCBldmVyeXRoaW5nLAo+IHVuZm9ydHVuYXRlbHkg dGhlIHRlc3RjYXNlIGlzIGFsc28gbm90IHF1aXRlIHJlYWR5IHlldC4gSW4gYW55IGNhc2UgdGhl c2UKPiBjaGFuZ2VzIHNob3VsZCBiZSBtb3ZlZCBpbnRvIHRoZSBpbmVsX3Bzcl8qIGZ1bmN0aW9u cyBhbmQgaW4gYSBzZXBhcmF0ZQo+IHBhdGNoLgpXaGVuIHVidW50dSBib290cyB1cCBhbmQgc3Rv cHMgYXQgdGhlIGxvZ2luIHNjcmVlbiwgdGhlIHRleHQgSSBlbnRlciBjb21lcwpzbG93bHksIGxv b2tzIGxpa2UgcHNyIGV4aXQgYW5kIGVudHJ5IGlzIG5vdCB2ZXJ5IHByb21wdCBhdCB0aGF0IHRp bWUuCkJ1dCB3aGVuIEkgdHJ5IHdpdGggU1cgdHJhY2tpbmcsIEkgc2VlIHRoYXQgUFNSIGRvZXNu J3QgZ2V0IGVuYWJsZWQgYXQgCmFsbCBhdCB0aGF0IHBvaW50IQpBbHNvLCBJIGRvbid0IHNlZSBj YWxscyB0byBmcm9udGJ1ZmZlciBpbnZhbGlkYXRlIGFuZCBmbHVzaCBhdCB0aGF0IHBvaW50LgpT bywgd2l0aCBTVyB0cmFja2luZyB0b28gd2Ugd2lsbCBoYXZlIGNhc2VzIHdoZXJlIHdlIGRvbid0 IGVudGVyIHBzci4KQW55IGlucHV0cyBvbiB3aHkgZnJvbnRidWZmZXIgY2FsbHMgYXJlIG5vdCBy ZWNlaXZlZCBkdXJpbmcgbG9naW4gc2NyZWVuPwoKUGxlYXNlIG5vdGUgdGhhdCBhZnRlciBsb2dp biwgaXQgd29ya3MgZmluZSBpZiBJIHR5cGUgc29tZXRoaW5nIG9uIHRoZSAKdGVybWluYWwgb3Ig ZG8gc29tZSBvdGhlcgp0aGluZ3MuCj4gQWxzbyBzb21lb25lIG5lZWRzIHRvIHJlLXJldmlldyB0 aGUgcHNyIGlndCB0ZXN0Y2FzZSB0byBtYWtlIHN1cmUgaXQKPiBjb3ZlcnMgZXZlcnl0aGluZy4g VmlsbGUgY291bGQgZG8gdGhhdCB0b28gc2luY2UgaGUncyBkb25lIHRoZSBmYmMKPiB0ZXN0Y2Fz ZS4KPiAtRGFuaWVsCj4KPj4gICAgLyoKPj4gICAgKiBGSVhNRTogVW5jb25kaXRpb25hbCBmYmMg Zmx1c2hpbmcgaGVyZSBpcyBhIHJhdGhlciBncm9zcyBoYWNrIGFuZAo+PiBkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcHNyLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9wc3IuYwo+PiBpbmRleCBkZDBlNmUwLi42ZDJjZGI4IDEwMDY0NAo+PiAtLS0gYS9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wc3IuYwo+PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkx NS9pbnRlbF9wc3IuYwo+PiBAQCAtMTczLDExICsxNzMsMjQgQEAgc3RhdGljIHZvaWQgaHN3X3Bz cl9lbmFibGVfc2luayhzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQo+PiAgICBJOTE1X1dSSVRF KEVEUF9QU1JfQVVYX0RBVEExKGRldikgKyBpLAo+PiAgICAgIGludGVsX2RwX3BhY2tfYXV4KCZh dXhfbXNnW2ldLCBzaXplb2YoYXV4X21zZykgLSBpKSk7Cj4+Cj4+IC0gSTkxNV9XUklURShFRFBf UFNSX0FVWF9DVEwoZGV2KSwKPj4gKyBpZiAoSU5URUxfSU5GTyhkZXYpLT5nZW4gPj0gOSkgewo+ PiArIHVpbnQzMl90IHZhbDsKPj4gKwo+PiArIHZhbCA9IEk5MTVfUkVBRChFRFBfUFNSX0FVWF9D VEwoZGV2KSk7Cj4+ICsgdmFsICY9IH5EUF9BVVhfQ0hfQ1RMX1RJTUVfT1VUX01BU0s7Cj4+ICsg dmFsIHw9IERQX0FVWF9DSF9DVExfVElNRV9PVVRfMTYwMHVzOwo+PiArIHZhbCAmPSB+RFBfQVVY X0NIX0NUTF9NRVNTQUdFX1NJWkVfTUFTSzsKPj4gKyB2YWwgfD0gKHNpemVvZihhdXhfbXNnKSA8 PCBEUF9BVVhfQ0hfQ1RMX01FU1NBR0VfU0laRV9TSElGVCk7Cj4+ICsgLyogVXNlIGhhcmRjb2Rl ZCBkYXRhIHZhbHVlcyBmb3IgUFNSICovCj4+ICsgdmFsICY9IH5EUF9BVVhfQ0hfQ1RMX1BTUl9E QVRBX0FVWF9SRUdfU0tMOwo+PiArIEk5MTVfV1JJVEUoRURQX1BTUl9BVVhfQ1RMKGRldiksIHZh bCk7Cj4+ICsgfSBlbHNlIHsKPj4gKyBJOTE1X1dSSVRFKEVEUF9QU1JfQVVYX0NUTChkZXYpLAo+ PiAgICAgIERQX0FVWF9DSF9DVExfVElNRV9PVVRfNDAwdXMgfAo+PiAgICAgIChzaXplb2YoYXV4 X21zZykgPDwgRFBfQVVYX0NIX0NUTF9NRVNTQUdFX1NJWkVfU0hJRlQpIHwKPj4gICAgICAocHJl Y2hhcmdlIDw8IERQX0FVWF9DSF9DVExfUFJFQ0hBUkdFXzJVU19TSElGVCkgfAo+PiAgICAgIChh dXhfY2xvY2tfZGl2aWRlciA8PCBEUF9BVVhfQ0hfQ1RMX0JJVF9DTE9DS18yWF9TSElGVCkpOwo+ PiArIH0KPj4gICB9Cj4+Cj4+ICAgc3RhdGljIHZvaWQgdmx2X3Bzcl9lbmFibGVfc291cmNlKHN0 cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHApCj4+IEBAIC0zNTUsNiArMzY4LDkgQEAgdm9pZCBpbnRl bF9wc3JfZW5hYmxlKHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHApCj4+Cj4+ICAgIC8qIEVuYWJs ZSBQU1Igb24gdGhlIHBhbmVsICovCj4+ICAgIGhzd19wc3JfZW5hYmxlX3NpbmsoaW50ZWxfZHAp Owo+PiArCj4+ICsgaWYgKElOVEVMX0lORk8oZGV2KS0+Z2VuID49IDkpCj4+ICsgaW50ZWxfcHNy X2FjdGl2YXRlKGludGVsX2RwKTsKPj4gICAgfSBlbHNlIHsKPj4gICAgdmx2X3Bzcl9zZXR1cF92 c2MoaW50ZWxfZHApOwo+Pgo+PiAtLQo+PiAxLjcuMTAuNAo+Pgo+PiBfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+PiBJbnRlbC1nZnggbWFpbGluZyBsaXN0 Cj4+IEludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKPj4gaHR0cDovL2xpc3RzLmZyZWVk ZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRl bC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcv bWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK