From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Kamble, Sagar A" Subject: Re: [RFC 14/22] drm/i915/slpc: Notification of Display mode change Date: Fri, 29 Jan 2016 10:30:46 +0530 Message-ID: <56AAF1FE.6050204@intel.com> References: <1453343184-160456-1-git-send-email-tom.orourke@intel.com> <1453343184-160456-15-git-send-email-tom.orourke@intel.com> <20160122171454.GN23290@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 31FBE6E0FB for ; Thu, 28 Jan 2016 21:00:49 -0800 (PST) In-Reply-To: <20160122171454.GN23290@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: =?UTF-8?B?VmlsbGUgU3lyasOkbMOk?= , tom.orourke@intel.com Cc: Intel Graphics Development , "Hiremath, Shashidhar" List-Id: intel-gfx@lists.freedesktop.org VGhhbmtzIGZvciB0aGUgcmV2aWV3IFZpbGxlLgpJIHdpbGwgdXBkYXRlIHRoZSBwYXRjaC4KCk9u IDEvMjIvMjAxNiAxMDo0NCBQTSwgVmlsbGUgU3lyasOkbMOkIHdyb3RlOgo+IE9uIFdlZCwgSmFu IDIwLCAyMDE2IGF0IDA2OjI2OjE2UE0gLTA4MDAsIHRvbS5vcm91cmtlQGludGVsLmNvbSB3cm90 ZToKPj4gRnJvbTogU2FnYXIgQXJ1biBLYW1ibGUgPHNhZ2FyLmEua2FtYmxlQGludGVsLmNvbT4K Pj4KPj4gR3VDIFNMUEMgbmVlZCB0byBiZSBzZW50IGRhdGEgcmVsYXRlZCB0byBBY3RpdmUgcGlw ZXMsIHJlZnJlc2ggcmF0ZXMsCj4+IHdpZGkgcGlwZXMsIGZ1bGxzY3JlZW4gcGlwZXMgcmVsYXRl ZCB2aWEgaG9zdCB0byBHdUMgZGlzcGxheSBtb2RlCj4+IGNoYW5nZSBldmVudC4KPj4gVGhpcyBw YXRjaCBkZWZpbmVzIHRoZSBldmVudCBhbmQgaW1wbGVtZW50cyB0cmlnZ2VyIG9mIHRoZSBldmVu dC4KPj4KPj4gU2lnbmVkLW9mZi1ieTogU2FnYXIgQXJ1biBLYW1ibGUgPHNhZ2FyLmEua2FtYmxl QGludGVsLmNvbT4KPj4gQWNrZWQtYnk6IFRvbSBPJ1JvdXJrZSA8VG9tLk8nUm91cmtlQGludGVs LmNvbT4KPj4gLS0tCj4+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jIHwg IDIgKwo+PiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3NscGMuYyAgICB8IDkyICsrKysr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKwo+PiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1 L2ludGVsX3NscGMuaCAgICB8ICAxICsKPj4gICAzIGZpbGVzIGNoYW5nZWQsIDk1IGluc2VydGlv bnMoKykKPj4KPj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rpc3Bs YXkuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2Rpc3BsYXkuYwo+PiBpbmRleCAwNmFi NmRmLi43YzNkOTAyIDEwMDY0NAo+PiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9k aXNwbGF5LmMKPj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4+ IEBAIC0xMzYzOCw2ICsxMzYzOCw4IEBAIHN0YXRpYyBpbnQgaW50ZWxfYXRvbWljX2NvbW1pdChz dHJ1Y3QgZHJtX2RldmljZSAqZGV2LAo+PiAgIAkgKi8KPj4gICAJaW50ZWxfdW5jb3JlX2FybV91 bmNsYWltZWRfbW1pb19kZXRlY3Rpb24oZGV2X3ByaXYpOwo+PiAgIAo+PiArCWludGVsX3NscGNf dXBkYXRlX2Rpc3BsYXlfbW9kZV9pbmZvKGRldik7Cj4+ICsKPj4gICAJcmV0dXJuIDA7Cj4+ICAg fQo+PiAgIAo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfc2xwYy5j IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfc2xwYy5jCj4+IGluZGV4IGYxNTVkODguLmY1 ZjdjYWQgMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3NscGMuYwo+ PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9zbHBjLmMKPj4gQEAgLTc0LDYgKzc0 LDI3IEBAIHN0YXRpYyBpbnQgaG9zdDJndWNfc2xwY19zaHV0ZG93bihzdHJ1Y3QgZHJtX2k5MTVf cHJpdmF0ZSAqZGV2X3ByaXYpCj4+ICAgCXJldHVybiByZXQ7Cj4+ICAgfQo+PiAgIAo+PiArc3Rh dGljIGludCBob3N0Mmd1Y19zbHBjX2Rpc3BsYXlfbW9kZV9jaGFuZ2Uoc3RydWN0IGRybV9pOTE1 X3ByaXZhdGUgKmRldl9wcml2KQo+PiArewo+PiArICAgICAgICB1MzIgZGF0YVs3XTsKPj4gKwlp bnQgcmV0LCBpOwo+PiArCj4+ICsgICAgICAgIGRhdGFbMF0gPSBIT1NUMkdVQ19BQ1RJT05fU0xQ Q19SRVFVRVNUOwo+PiArICAgICAgICBkYXRhWzFdID0gU0xQQ19FVkVOVChTTFBDX0VWRU5UX0RJ U1BMQVlfTU9ERV9DSEFOR0UsIE1BWF9OVU1fT0ZfUElQRSArIDEpOwo+PiArCWRhdGFbMl0gPSBk ZXZfcHJpdi0+Z3VjLnNscGMuZGlzcGxheV9tb2RlX3BhcmFtcy5nbG9iYWxfZGF0YTsKPj4gKwlm b3IoaSA9IDA7IGkgPCBNQVhfTlVNX09GX1BJUEU7ICsraSkKPj4gKwkJZGF0YVszK2ldID0gZGV2 X3ByaXYtPmd1Yy5zbHBjLmRpc3BsYXlfbW9kZV9wYXJhbXMucGVyX3BpcGVfaW5mb1tpXS5kYXRh Owo+PiArCj4+ICsgICAgICAgIHJldCA9IGhvc3QyZ3VjX2FjdGlvbigmZGV2X3ByaXYtPmd1Yywg ZGF0YSwgNyk7Cj4+ICsKPj4gKwlpZiAoMCA9PSByZXQpIHsKPj4gKwkJcmV0ID0gSTkxNV9SRUFE KFNPRlRfU0NSQVRDSCgxKSk7Cj4+ICsJCXJldCAmPSAweEZGOwo+PiArCX0KPj4gKwo+PiArCXJl dHVybiByZXQ7Cj4+ICt9Cj4+ICsKPj4gICBzdGF0aWMgdTggc2xwY19nZXRfcGxhdGZvcm1fc2t1 KHN0cnVjdCBkcm1faTkxNV9nZW1fb2JqZWN0ICpvYmopCj4+ICAgewo+PiAgIAlzdHJ1Y3QgZHJt X2RldmljZSAqZGV2ID0gb2JqLT5iYXNlLmRldjsKPj4gQEAgLTIyNSwzICsyNDYsNzQgQEAgaW50 IGludGVsX3NscGNfcmVzZXQoc3RydWN0IGRybV9kZXZpY2UgKmRldikKPj4gICAKPj4gICAJcmV0 dXJuIHJldDsKPj4gICB9Cj4+ICsKPj4gK2ludCBpbnRlbF9zbHBjX3VwZGF0ZV9kaXNwbGF5X21v ZGVfaW5mbyhzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KQo+PiArewo+PiArCXN0cnVjdCBkcm1faTkx NV9wcml2YXRlICpkZXZfcHJpdiA9IGRldi0+ZGV2X3ByaXZhdGU7Cj4+ICsJc3RydWN0IGRybV9j cnRjICpjcnRjOwo+PiArCXN0cnVjdCBpbnRlbF9jcnRjICppbnRlbF9jcnRjOwo+PiArCXN0cnVj dCBkcm1fY29ubmVjdG9yICpjb25uZWN0b3I7Cj4+ICsJc3RydWN0IGludGVsX2Nvbm5lY3RvciAq aW50ZWxfY29ubmVjdG9yOwo+PiArCXN0cnVjdCBkcm1fZW5jb2RlciAqZW5jb2RlcjsKPj4gKwlz dHJ1Y3QgaW50ZWxfZW5jb2RlciAqaW50ZWxfZW5jb2RlcjsKPj4gKwlzdHJ1Y3QgaW50ZWxfZGlz cGxheV9waXBlX2Jhc2ljX2luZm8gKnBlcl9waXBlX2luZm87Cj4+ICsJc3RydWN0IGludGVsX3Ns cGNfZGlzcGxheV9tb2RlX2V2ZW50X3BhcmFtcyAqY3VyX3BhcmFtcywgb2xkX3BhcmFtczsKPj4g Kwlib29sIG5vdGlmeSA9IGZhbHNlOwo+PiArCj4+ICsJaWYgKCFIQVNfU0xQQyhkZXYpKQo+PiAr CQlyZXR1cm4gLUVJTlZBTDsKPj4gKwo+PiArCWN1cl9wYXJhbXMgPSAmZGV2X3ByaXYtPmd1Yy5z bHBjLmRpc3BsYXlfbW9kZV9wYXJhbXM7Cj4+ICsKPj4gKwkvKiBDb3B5IGRpc3BsYXkgbW9kZSBw YXJhbWV0ZXJzIGZvciBjb21wYXJpc29uICovCj4+ICsJb2xkX3BhcmFtcy5nbG9iYWxfZGF0YSAg PSBjdXJfcGFyYW1zLT5nbG9iYWxfZGF0YTsKPj4gKwljdXJfcGFyYW1zLT5nbG9iYWxfZGF0YSA9 IDA7Cj4+ICsKPj4gKwlmb3JfZWFjaF9pbnRlbF9jcnRjKGRldiwgaW50ZWxfY3J0Yykgewo+PiAr CQlwZXJfcGlwZV9pbmZvID0gJmN1cl9wYXJhbXMtPnBlcl9waXBlX2luZm9baW50ZWxfY3J0Yy0+ cGlwZV07Cj4+ICsJCW9sZF9wYXJhbXMucGVyX3BpcGVfaW5mb1tpbnRlbF9jcnRjLT5waXBlXS5k YXRhID0gcGVyX3BpcGVfaW5mby0+ZGF0YTsKPj4gKwkJcGVyX3BpcGVfaW5mby0+ZGF0YSA9IDA7 Cj4+ICsJfQo+PiArCj4+ICsJZm9yX2VhY2hfaW50ZWxfY3J0YyhkZXYsIGludGVsX2NydGMpIHsK Pj4gKwkJc3RydWN0IGludGVsX2NydGNfc3RhdGUgKnBpcGVfY29uZmlnOwo+PiArCj4+ICsJCXBl cl9waXBlX2luZm8gPSAmY3VyX3BhcmFtcy0+cGVyX3BpcGVfaW5mb1tpbnRlbF9jcnRjLT5waXBl XTsKPj4gKwkJY3J0YyA9ICZpbnRlbF9jcnRjLT5iYXNlOwo+PiArCQlwaXBlX2NvbmZpZyA9IHRv X2ludGVsX2NydGNfc3RhdGUoY3J0Yy0+c3RhdGUpOwo+PiArCj4+ICsJCWlmIChwaXBlX2NvbmZp Zy0+YmFzZS5hY3RpdmUpIHsKPj4gKwkJCWZvcl9lYWNoX2VuY29kZXJfb25fY3J0YyhkZXYsIGNy dGMsIGludGVsX2VuY29kZXIpIHsKPj4gKwkJCQllbmNvZGVyID0gJmludGVsX2VuY29kZXItPmJh c2U7Cj4+ICsJCQkJZm9yX2VhY2hfY29ubmVjdG9yX29uX2VuY29kZXIoZGV2LCBlbmNvZGVyLCBp bnRlbF9jb25uZWN0b3IpIHsKPj4gKwkJCQkJY29ubmVjdG9yID0gJmludGVsX2Nvbm5lY3Rvci0+ YmFzZTsKPj4gKwkJCQkJaWYgKGNvbm5lY3Rvci0+c3RhdHVzID09IGNvbm5lY3Rvcl9zdGF0dXNf Y29ubmVjdGVkKSB7Cj4gVGhlIGNvbm5lY290ci9lbmNvZGVyIHN0dWZmIHNob3VsZCBub3QgYmUg aGVyZS4gV2UgY2FuIGVuYWJsZSBhIHBpcGUKPiB3aXRob3V0IGFueSBjb25uZWN0ZWQgY29ubmVj dG9ycy4gQWxzbyBsb2NraW5nIGlzIGZhaWwuCj4KPiBUaGUgcGF0Y2ggYWxzbyBmYWlscyB0byBl eHBsYWluIHdoeSB0aGUgZ3VjIG5lZWRzIHRvIGtub3cgYW55IG9mIHRoaXMKPiBzdHVmZi4gSXQg bWFrZXMgbWUgdmVyeSBzdXNwaWNpb3VzIHRoYXQgdGhlIGd1YyBpcyBnb2luZyB0byBzdGFydAo+ IHBva2luZyBhdCBzb21lIGRpc3BsYXkgc3R1ZmYgYmVoaW5kIHRoZSBkcml2ZXIncyBiYWNrLiBJ IGFjdHVhbGx5Cj4gdGhpbmsgdGhhdCBkb2luZyBzb21lIGRpc3BsYXkgc3R1ZmYgaW4gdGhlIGd1 YyBtaWdodCBiZSBuZWF0LCBidXQgbm90Cj4gd2hlbiBpdCdzIGEgYmxhY2sgYm94IGJsb2IuCj4K Pj4gKwkJCQkJCXN0cnVjdCBkcm1fZGlzcGxheV9tb2RlICptb2RlID0gJmNydGMtPm1vZGU7Cj4+ ICsJCQkJCQkvKiBGSVhNRTogVXBkYXRlIGlzX3dpZGkgYmFzZWQgb24gZW5jb2RlciAqLwo+PiAr CQkJCQkJcGVyX3BpcGVfaW5mby0+aXNfd2lkaSA9IDA7Cj4+ICsJCQkJCQlwZXJfcGlwZV9pbmZv LT5yZWZyZXNoX3JhdGUgPSBtb2RlLT52cmVmcmVzaDsKPj4gKwkJCQkJCXBlcl9waXBlX2luZm8t PnZzeW5jX2Z0X3VzZWMgPSAxMDAwMDAwIC8gbW9kZS0+dnJlZnJlc2g7Cj4+ICsJCQkJCQljdXJf cGFyYW1zLT5hY3RpdmVfcGlwZXNfYml0bWFzayB8PSAoMSA8PCBpbnRlbF9jcnRjLT5waXBlKTsK Pj4gKwkJCQkJCWN1cl9wYXJhbXMtPnZiaV9zeW5jX29uX3BpcGVzIHw9ICgxIDw8IGludGVsX2Ny dGMtPnBpcGUpOwo+PiArCQkJCQkJY3VyX3BhcmFtcy0+bnVtX2FjdGl2ZV9waXBlcysrOwo+PiAr CQkJCQl9Cj4+ICsJCQkJfQo+PiArCQkJfQo+PiArCQl9Cj4+ICsJfQo+PiArCj4+ICsJLyogQ29t cGFyZSBvbGQgZGlzcGxheSBtb2RlIHdpdGggY3VycmVudCBtb2RlLiBOb3RpZnkgU0xQQyBpZiBp dCBpcyBjaGFuZ2VkLiAqLwo+PiArCWlmIChjdXJfcGFyYW1zLT5nbG9iYWxfZGF0YSAhPSBvbGRf cGFyYW1zLmdsb2JhbF9kYXRhKQo+PiArCQlub3RpZnkgPSB0cnVlOwo+PiArCj4+ICsJZm9yX2Vh Y2hfaW50ZWxfY3J0YyhkZXYsIGludGVsX2NydGMpIHsKPj4gKwkJcGVyX3BpcGVfaW5mbyA9ICZj dXJfcGFyYW1zLT5wZXJfcGlwZV9pbmZvW2ludGVsX2NydGMtPnBpcGVdOwo+PiArCQlpZiAob2xk X3BhcmFtcy5wZXJfcGlwZV9pbmZvW2ludGVsX2NydGMtPnBpcGVdLmRhdGEgIT0gcGVyX3BpcGVf aW5mby0+ZGF0YSkKPj4gKwkJCW5vdGlmeSA9IHRydWU7Cj4+ICsJfQo+PiArCj4+ICsJaWYgKG5v dGlmeSkKPj4gKwkJaG9zdDJndWNfc2xwY19kaXNwbGF5X21vZGVfY2hhbmdlKGRldl9wcml2KTsK Pj4gKwo+PiArCXJldHVybiAwOwo+PiArfQo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJt L2k5MTUvaW50ZWxfc2xwYy5oIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfc2xwYy5oCj4+ IGluZGV4IDk2NzNhNjMuLjE4ZTU1MWIgMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9p OTE1L2ludGVsX3NscGMuaAo+PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9zbHBj LmgKPj4gQEAgLTE1Miw1ICsxNTIsNiBAQCBpbnQgaW50ZWxfc2xwY19zdXNwZW5kKHN0cnVjdCBk cm1fZGV2aWNlICpkZXYpOwo+PiAgIGludCBpbnRlbF9zbHBjX2Rpc2FibGUoc3RydWN0IGRybV9k ZXZpY2UgKmRldik7Cj4+ICAgaW50IGludGVsX3NscGNfZW5hYmxlKHN0cnVjdCBkcm1fZGV2aWNl ICpkZXYpOwo+PiAgIGludCBpbnRlbF9zbHBjX3Jlc2V0KHN0cnVjdCBkcm1fZGV2aWNlICpkZXYp Owo+PiAraW50IGludGVsX3NscGNfdXBkYXRlX2Rpc3BsYXlfbW9kZV9pbmZvKHN0cnVjdCBkcm1f ZGV2aWNlICpkZXYpOwo+PiAgIAo+PiAgICNlbmRpZgo+PiAtLSAKPj4gMS45LjEKPj4KPj4gX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KPj4gSW50ZWwtZ2Z4 IG1haWxpbmcgbGlzdAo+PiBJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4+IGh0dHA6 Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWls aW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwOi8vbGlzdHMuZnJl ZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==