From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maarten Lankhorst Subject: Re: [PATCH v3 5/9] drm/i915/gen9: WM memory bandwidth related workaround Date: Mon, 12 Sep 2016 13:02:32 +0200 Message-ID: References: <20160909080106.17506-1-mahesh1.kumar@intel.com> <20160909080106.17506-6-mahesh1.kumar@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id E71A66E3B9 for ; Mon, 12 Sep 2016 11:02:34 +0000 (UTC) In-Reply-To: <20160909080106.17506-6-mahesh1.kumar@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: "Kumar, Mahesh" , intel-gfx@lists.freedesktop.org Cc: paulo.r.zanoni@intel.com List-Id: intel-gfx@lists.freedesktop.org T3AgMDktMDktMTYgb20gMTA6MDEgc2NocmVlZiBLdW1hciwgTWFoZXNoOgo+IEZyb206IE1haGVz aCBLdW1hciA8bWFoZXNoMS5rdW1hckBpbnRlbC5jb20+Cj4KPiBUaGlzIHBhdGNoIGltcGxlbW5l dHMgV29ya2Fyb3VuZHMgcmVsYXRlZCB0byBkaXNwbGF5IGFyYml0cmF0ZWQgbWVtb3J5Cj4gYmFu ZHdpZHRoLiBUaGVzZSBXQSBhcmUgYXBwbGljYWJlIGZvciBhbGwgZ2VuLTkgYmFzZWQgcGxhdGZv cm1zLgo+Cj4gQ2hhbmdlcyBzaW5jZSB2MToKPiAgLSBSZWJhc2Ugb24gdG9wIG9mIFBhdWxvJ3Mg cGF0Y2ggc2VyaWVzCj4KPiBTaWduZWQtb2ZmLWJ5OiBNYWhlc2ggS3VtYXIgPG1haGVzaDEua3Vt YXJAaW50ZWwuY29tPgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oICB8 ICAgOSArKysKPiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHJ2LmggfCAgMTEgKysrCj4g IGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMgIHwgMTQ1ICsrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrKysrKwo+ICAzIGZpbGVzIGNoYW5nZWQsIDE2NSBpbnNlcnRpb25z KCspCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaCBiL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmgKPiBpbmRleCA0MzEzOTkyLi40NzM3YTBlIDEw MDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmgKPiArKysgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oCj4gQEAgLTEwNzQsNiArMTA3NCwxMyBAQCBlbnVt IGludGVsX3NiaV9kZXN0aW5hdGlvbiB7Cj4gIAlTQklfTVBIWSwKPiAgfTsKPiAgCj4gKy8qIFNL TCsgV2F0ZXJtYXJrIGFyYml0cmF0ZWQgZGlzcGxheSBiYW5kd2lkdGggV29ya2Fyb3VuZHMgKi8K PiArZW51bSB3YXRlcm1hcmtfbWVtb3J5X3dhIHsKPiArCVdBVEVSTUFSS19XQV9OT05FLAo+ICsJ V0FURVJNQVJLX1dBX1hfVElMRUQsCj4gKwlXQVRFUk1BUktfV0FfWV9USUxFRCwKPiArfTsKPiAr Cj4gICNkZWZpbmUgUVVJUktfUElQRUFfRk9SQ0UgKDE8PDApCj4gICNkZWZpbmUgUVVJUktfTFZE U19TU0NfRElTQUJMRSAoMTw8MSkKPiAgI2RlZmluZSBRVUlSS19JTlZFUlRfQlJJR0hUTkVTUyAo MTw8MikKPiBAQCAtMTYyMyw2ICsxNjMwLDggQEAgc3RydWN0IHNrbF9kZGJfYWxsb2NhdGlvbiB7 Cj4gIAo+ICBzdHJ1Y3Qgc2tsX3dtX3ZhbHVlcyB7Cj4gIAl1bnNpZ25lZCBkaXJ0eV9waXBlczsK PiArCS8qIGFueSBXYXRlck1hcmsgbWVtb3J5IHdvcmthcm91bmQgUmVxdWlyZWQgKi8KPiArCWVu dW0gd2F0ZXJtYXJrX21lbW9yeV93YSBtZW1fd2E7Cj4gIAlzdHJ1Y3Qgc2tsX2RkYl9hbGxvY2F0 aW9uIGRkYjsKPiAgCXVpbnQzMl90IHdtX2xpbmV0aW1lW0k5MTVfTUFYX1BJUEVTXTsKPiAgCXVp bnQzMl90IHBsYW5lW0k5MTVfTUFYX1BJUEVTXVtJOTE1X01BWF9QTEFORVNdWzhdOwo+IGRpZmYg LS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaCBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX2Rydi5oCj4gaW5kZXggNmNkN2U4YS4uNjZjYjQ2YyAxMDA2NDQKPiAtLS0g YS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcnYuaAo+ICsrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX2Rydi5oCj4gQEAgLTE4MDAsNiArMTgwMCwxNyBAQCBpbnRlbF9hdG9taWNf Z2V0X2NydGNfc3RhdGUoc3RydWN0IGRybV9hdG9taWNfc3RhdGUgKnN0YXRlLAo+ICAJcmV0dXJu IHRvX2ludGVsX2NydGNfc3RhdGUoY3J0Y19zdGF0ZSk7Cj4gIH0KPiAgCj4gK3N0YXRpYyBpbmxp bmUgc3RydWN0IGludGVsX2NydGNfc3RhdGUgKgo+ICtpbnRlbF9hdG9taWNfZ2V0X2V4aXN0aW5n X2NydGNfc3RhdGUoc3RydWN0IGRybV9hdG9taWNfc3RhdGUgKnN0YXRlLAo+ICsJCQkJICAgICAg c3RydWN0IGludGVsX2NydGMgKmNydGMpCj4gK3sKPiArCXN0cnVjdCBkcm1fY3J0Y19zdGF0ZSAq Y3J0Y19zdGF0ZTsKPiArCj4gKwljcnRjX3N0YXRlID0gZHJtX2F0b21pY19nZXRfZXhpc3Rpbmdf Y3J0Y19zdGF0ZShzdGF0ZSwgJmNydGMtPmJhc2UpOwo+ICsKPiArCXJldHVybiB0b19pbnRlbF9j cnRjX3N0YXRlKGNydGNfc3RhdGUpOwo+ICt9Cj4gKwo+ICBzdGF0aWMgaW5saW5lIHN0cnVjdCBp bnRlbF9wbGFuZV9zdGF0ZSAqCj4gIGludGVsX2F0b21pY19nZXRfZXhpc3RpbmdfcGxhbmVfc3Rh dGUoc3RydWN0IGRybV9hdG9taWNfc3RhdGUgKnN0YXRlLAo+ICAJCQkJICAgICAgc3RydWN0IGlu dGVsX3BsYW5lICpwbGFuZSkKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfcG0uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMKPiBpbmRleCA3YzcwZTA3 Li4wZWMzMjhiIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMK PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jCj4gQEAgLTM1ODksNiArMzU4 OSw4IEBAIHN0YXRpYyBpbnQgc2tsX2NvbXB1dGVfcGxhbmVfd20oY29uc3Qgc3RydWN0IGRybV9p OTE1X3ByaXZhdGUgKmRldl9wcml2LAo+ICB7Cj4gIAlzdHJ1Y3QgZHJtX3BsYW5lX3N0YXRlICpw c3RhdGUgPSAmaW50ZWxfcHN0YXRlLT5iYXNlOwo+ICAJc3RydWN0IGRybV9mcmFtZWJ1ZmZlciAq ZmIgPSBwc3RhdGUtPmZiOwo+ICsJc3RydWN0IGludGVsX2F0b21pY19zdGF0ZSAqaW50ZWxfc3Rh dGUgPQo+ICsJCQl0b19pbnRlbF9hdG9taWNfc3RhdGUoY3N0YXRlLT5iYXNlLnN0YXRlKTsKPiAg CXVpbnQzMl90IGxhdGVuY3kgPSBkZXZfcHJpdi0+d20uc2tsX2xhdGVuY3lbbGV2ZWxdOwo+ICAJ dWludDMyX3QgbWV0aG9kMSwgbWV0aG9kMjsKPiAgCXVpbnQzMl90IHBsYW5lX2J5dGVzX3Blcl9s aW5lLCBwbGFuZV9ibG9ja3NfcGVyX2xpbmU7Cj4gQEAgLTM2MDIsMTAgKzM2MDQsMTcgQEAgc3Rh dGljIGludCBza2xfY29tcHV0ZV9wbGFuZV93bShjb25zdCBzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0 ZSAqZGV2X3ByaXYsCj4gIAlzdHJ1Y3Qgc2tsX3dtX2xldmVsICpyZXN1bHQgPSAmcGlwZV93bS0+ d21bbGV2ZWxdOwo+ICAJdWludDE2X3QgKm91dF9ibG9ja3MgPSAmcmVzdWx0LT5wbGFuZV9yZXNf YltpZF07Cj4gIAl1aW50OF90ICpvdXRfbGluZXMgPSAmcmVzdWx0LT5wbGFuZV9yZXNfbFtpZF07 Cj4gKwllbnVtIHdhdGVybWFya19tZW1vcnlfd2EgbWVtX3dhOwo+ICAKPiAgCWlmIChsYXRlbmN5 ID09IDAgfHwgIWNzdGF0ZS0+YmFzZS5hY3RpdmUgfHwgIWludGVsX3BzdGF0ZS0+YmFzZS52aXNp YmxlKQo+ICAJCXJldHVybiAwOwo+ICAKPiArCW1lbV93YSA9IGludGVsX3N0YXRlID8gaW50ZWxf c3RhdGUtPndtX3Jlc3VsdHMubWVtX3dhIDogV0FURVJNQVJLX1dBX05PTkU7Cj4gKwlpZiAobWVt X3dhICE9IFdBVEVSTUFSS19XQV9OT05FKSB7Cj4gKwkJaWYgKGZiLT5tb2RpZmllclswXSA9PSBJ OTE1X0ZPUk1BVF9NT0RfWF9USUxFRCkKPiArCQkJbGF0ZW5jeSArPSAxNTsKPiArCX0KPiArCj4g IAl3aWR0aCA9IGRybV9yZWN0X3dpZHRoKCZpbnRlbF9wc3RhdGUtPmJhc2Uuc3JjKSA+PiAxNjsK PiAgCWhlaWdodCA9IGRybV9yZWN0X2hlaWdodCgmaW50ZWxfcHN0YXRlLT5iYXNlLnNyYykgPj4g MTY7Cj4gIAo+IEBAIC0zNjM3LDYgKzM2NDYsOSBAQCBzdGF0aWMgaW50IHNrbF9jb21wdXRlX3Bs YW5lX3dtKGNvbnN0IHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwKPiAgCQl5X21p bl9zY2FubGluZXMgPSA0Owo+ICAJfQo+ICAKPiArCWlmIChtZW1fd2EgPT0gV0FURVJNQVJLX1dB X1lfVElMRUQpCj4gKwkJeV9taW5fc2NhbmxpbmVzICo9IDI7Cj4gKwo+ICAJcGxhbmVfYnl0ZXNf cGVyX2xpbmUgPSB3aWR0aCAqIGNwcDsKPiAgCWlmIChmYi0+bW9kaWZpZXJbMF0gPT0gSTkxNV9G T1JNQVRfTU9EX1lfVElMRUQgfHwKPiAgCSAgICBmYi0+bW9kaWZpZXJbMF0gPT0gSTkxNV9GT1JN QVRfTU9EX1lmX1RJTEVEKSB7CkkgZG9uJ3QgaGF2ZSB5X21pbl9zY2FubGluZXMgaW4gbmlnaHRs eT8gV2hhdCBpcyB0aGlzIHNlcmllcyBiYXNlZCBvbj8KSXQgZG9lc24ndCBhcHBseSBjbGVhbmx5 IGF0IGxlYXN0Li4KCn5NYWFydGVuCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVk ZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZv L2ludGVsLWdmeAo=