From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH 2/4] drm/i915/gen9: Verify and enforce dc6 state writes Date: Thu, 18 Feb 2016 17:52:08 +0200 Message-ID: <8760xmow2f.fsf@gaia.fi.intel.com> References: <1455808874-22089-1-git-send-email-mika.kuoppala@intel.com> <1455808874-22089-3-git-send-email-mika.kuoppala@intel.com> <1455810172.7638.11.camel@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 ESMTP id F3D9089B48 for ; Thu, 18 Feb 2016 15:53:59 +0000 (UTC) In-Reply-To: <1455810172.7638.11.camel@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: imre.deak@intel.com, intel-gfx@lists.freedesktop.org Cc: Rodrigo Vivi List-Id: intel-gfx@lists.freedesktop.org SW1yZSBEZWFrIDxpbXJlLmRlYWtAaW50ZWwuY29tPiB3cml0ZXM6Cgo+IE9uIHRvLCAyMDE2LTAy LTE4IGF0IDE3OjIxICswMjAwLCBNaWthIEt1b3BwYWxhIHdyb3RlOgo+PiBJdCBoYXMgYmVlbiBv YnNlcnZlZCB0aGF0IHNvbWV0aW1lcyBkaXNhYmxpbmcgdGhlIGRjNiBmYWlscwo+PiBhbmQgZGM2 IHN0YXRlIHBvcHMgYmFjayB1cCwgYnJpZWYgbW9tZW50IGFmdGVyIGRpc2FibGluZy4gVGhpcwo+ PiBoYXMgdG8gYmUgZG1jIHNhdmUvcmVzdG9yZSB0aW1pbmcgaXNzdWUgb3Igb3RoZXIgYnVnIGlu IHRoZQo+PiB3YXkgZGMgc3RhdGVzIGFyZSBoYW5kbGVkLgo+PiAKPj4gVHJ5IHRvIHdvcmsgYXJv dW5kIHRoaXMgaXNzdWUgYXMgd2UgZG9uJ3QgaGF2ZSBmaXJtd2FyZSBmaXgKPj4geWV0IGF2YWls YWJsZS4gVmVyaWZ5IHRoYXQgdGhlIHZhbHVlIHdlIHdyb3RlIGZvciB0aGUgZG1jIHN0aWNrcywK Pj4gYW5kIGFsc28gZW5mb3JjZSBpdCBieSByZXdyaXRpbmcgaXQsIGlmIGl0IGRpZG4ndC4KPj4g Cj4+IFRlc3RjYXNlOiBrbXNfZmxpcC9iYXNpYy1mbGlwLXZzLWRwbXMKPj4gUmVmZXJlbmNlczog aHR0cHM6Ly9idWdzLmZyZWVkZXNrdG9wLm9yZy9zaG93X2J1Zy5jZ2k/aWQ9OTM3NjgKPj4gQ2M6 IFBhdHJpayBKYWtvYnNzb24gPHBhdHJpay5qYWtvYnNzb25AbGludXguaW50ZWwuY29tPgo+PiBD YzogUm9kcmlnbyBWaXZpIDxyb2RyaWdvLnZpdmlAaW50ZWwuY29tPgo+PiBDYzogSW1yZSBEZWFr IDxpbXJlLmRlYWtAaW50ZWwuY29tPgo+PiBTaWduZWQtb2ZmLWJ5OiBNaWthIEt1b3BwYWxhIDxt aWthLmt1b3BwYWxhQGludGVsLmNvbT4KPj4gLS0tCj4+IMKgZHJpdmVycy9ncHUvZHJtL2k5MTUv aW50ZWxfcnVudGltZV9wbS5jIHwgNDAKPj4gKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr Ky0tCj4+IMKgMSBmaWxlIGNoYW5nZWQsIDM4IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0p Cj4+IAo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcnVudGltZV9w bS5jCj4+IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcnVudGltZV9wbS5jCj4+IGluZGV4 IDhiOTI5MGZkYjNiMi4uY2I5MTU0MGNmYmFkIDEwMDY0NAo+PiAtLS0gYS9kcml2ZXJzL2dwdS9k cm0vaTkxNS9pbnRlbF9ydW50aW1lX3BtLmMKPj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUv aW50ZWxfcnVudGltZV9wbS5jCj4+IEBAIC00NzAsNiArNDcwLDQyIEBAIHN0YXRpYyB2b2lkCj4+ IGdlbjlfc2V0X2RjX3N0YXRlX2RlYnVnbWFza19tZW1vcnlfdXAoCj4+IMKgCX0KPj4gwqB9Cj4+ IMKgCj4+ICtzdGF0aWMgdm9pZCBnZW45X3dyaXRlX2RjX3N0YXRlKHN0cnVjdCBkcm1faTkxNV9w cml2YXRlICpkZXZfcHJpdiwKPj4gKwkJCQl1MzIgc3RhdGUpCj4+ICt7Cj4+ICsJaW50IHJld3Jp dGVzID0gMDsKPj4gKwlpbnQgcmVyZWFkcyA9IDA7Cj4+ICsJdTMyIHY7Cj4+ICsKPj4gKwlJOTE1 X1dSSVRFKERDX1NUQVRFX0VOLCBzdGF0ZSk7Cj4+ICsKPj4gKwkvKiBJdCBoYXMgYmVlbiBvYnNl cnZlZCB0aGF0IGRpc2FibGluZyB0aGUgZGM2IHN0YXRlCj4+IHNvbWV0aW1lcwo+PiArCcKgKiBk b2Vzbid0IHN0aWNrIGFuZCBkbWMga2VlcHMgcmV0dXJuaW5nIG9sZCB2YWx1ZS4gTWFrZQo+PiBz dXJlCj4+ICsJwqAqIHRoZSB3cml0ZSByZWFsbHkgc3RpY2tzIGVub3VnaCB0aW1lcyBhbmQgYWxz byBmb3JjZQo+PiByZXdyaXRlIHVudGlsCj4+ICsJwqAqIHdlIGFyZSBjb25maWRlbnQgdGhhdCBz dGF0ZSBpcyBleGFjdGx5IHdoYXQgd2Ugd2FudC4KPj4gKwnCoCovCj4+ICsJZG/CoMKgewo+PiAr CQl2ID0gSTkxNV9SRUFEKERDX1NUQVRFX0VOKTsKPj4gKwo+PiArCQlpZiAodiAhPSBzdGF0ZSkg ewo+PiArCQkJSTkxNV9XUklURShEQ19TVEFURV9FTiwgc3RhdGUpOwo+PiArCQkJcmV3cml0ZXMr KzsKPgo+IENvdWxkIGJlIHJlcmVhZHMgPSAwOyBmb3IgZXh0cmEgcGFyYW5vaWEuIEVpdGhlciB3 YXk6CgpPaCB5ZXMsIGV4dHJhIHBhcmFub2lhIGluIGhlcmUgaXMgd2FycmFudGVkLiBJIHdpbGwK YWRkIHRoYXQuCgo+IFJldmlld2VkLWJ5OiBJbXJlIERlYWsgPGltcmUuZGVha0BpbnRlbC5jb20+ CgpUaGFua3MsCi1NaWthCgo+Cj4+ICsJCX0gZWxzZSBpZiAocmVyZWFkcysrID4gNSkgewo+PiAr CQkJYnJlYWs7Cj4+ICsJCX0KPj4gKwo+PiArCX0gd2hpbGUgKHJld3JpdGVzIDwgMTAwKTsKPj4g Kwo+PiArCWlmICh2ICE9IHN0YXRlKQo+PiArCQlEUk1fRVJST1IoIldyaXRpbmcgZGMgc3RhdGUg dG8gMHgleCBmYWlsZWQsIG5vdwo+PiAweCV4XG4iLAo+PiArCQkJwqDCoHN0YXRlLCB2KTsKPj4g Kwo+PiArCS8qIE1vc3Qgb2YgdGhlIHRpbWVzIHdlIG5lZWQgb25lIHJldHJ5LCBhdm9pZCBzcGFt ICovCj4+ICsJaWYgKHJld3JpdGVzID4gMSkKPj4gKwkJRFJNX0RFQlVHX0tNUygiUmV3cm90ZSBk YyBzdGF0ZSB0byAweCV4ICVkIHRpbWVzXG4iLAo+PiArCQkJwqDCoMKgwqDCoMKgc3RhdGUsIHJl d3JpdGVzKTsKPj4gK30KPj4gKwo+PiDCoHN0YXRpYyB2b2lkIGdlbjlfc2V0X2RjX3N0YXRlKHN0 cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwKPj4gdWludDMyX3Qgc3RhdGUpCj4+IMKg ewo+PiDCoAl1aW50MzJfdCB2YWw7Cj4+IEBAIC01MDIsOCArNTM4LDggQEAgc3RhdGljIHZvaWQg Z2VuOV9zZXRfZGNfc3RhdGUoc3RydWN0Cj4+IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2LCB1 aW50MzJfdCBzdGF0ZSkKPj4gwqAKPj4gwqAJdmFsICY9IH5tYXNrOwo+PiDCoAl2YWwgfD0gc3Rh dGU7Cj4+IC0JSTkxNV9XUklURShEQ19TVEFURV9FTiwgdmFsKTsKPj4gLQlQT1NUSU5HX1JFQUQo RENfU1RBVEVfRU4pOwo+PiArCj4+ICsJZ2VuOV93cml0ZV9kY19zdGF0ZShkZXZfcHJpdiwgdmFs KTsKPj4gwqAKPj4gwqAJZGV2X3ByaXYtPmNzci5kY19zdGF0ZSA9IHZhbCAmIG1hc2s7Cj4+IMKg fQpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1n ZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9s aXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK