From: Thomas Gummerer Subject: [PATCH v2] drm/i915: fix screen flickering Date: Thu, 14 May 2015 09:16:39 +0200 Message-ID: <1431587799-5399-1-git-send-email-t.gummerer@gmail.com> References: <20150514032118.GD25648@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20150514032118.GD25648@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Matt Roper Cc: David Airlie , intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Thomas Gummerer , Daniel Vetter List-Id: dri-devel@lists.freedesktop.org Q29tbWl0IGM5ZjAzOGExYTU5MiAoImRybS9pOTE1OiBEb24ndCBhc3N1bWUgcHJpbWFyeSAmIGN1 cnNvciBhcmUKYWx3YXlzIG9uIGZvciB3bSBjYWxjdWxhdGlvbiAodjQpIikgZml4ZXMgYSBudWxs IHBvaW50ZXIgZGVyZWZlcmVuY2UuClNldHRpbmcgdGhlIHByaW1hcnkgYW5kIGN1cnNvciBwYW5l cyB0byBmYWxzZSBpbgppbGtfY29tcHV0ZV93bV9wYXJhbWV0ZXJzIHRvIGZhbHNlIGRvZXMgaG93 ZXZlciBnaXZlIHRoZSBmb2xsb3dpbmcKZXJyb3JzIGluIHRoZSBrZXJuZWwgbG9nIGFuZCBjYXVz ZXMgdGhlIHNjcmVlbiB0byBmbGlja2VyLgoKWyAgMTAxLjEzMzcxNl0gW2RybTppbnRlbF9zZXRf Y3B1X2ZpZm9fdW5kZXJydW5fcmVwb3J0aW5nIFtpOTE1XV0KKkVSUk9SKiB1bmNsZWFyZWQgZmlm byB1bmRlcnJ1biBvbiBwaXBlIEEKWyAgMTAxLjEzMzcyNV0gW2RybTppbnRlbF9jcHVfZmlmb191 bmRlcnJ1bl9pcnFfaGFuZGxlciBbaTkxNV1dCipFUlJPUiogQ1BVIHBpcGUgQSBGSUZPIHVuZGVy cnVuCgpBbHdheXMgc2V0dGluZyB0aGUgcGFuZXMgdG8gZW5hYmxlZCBmaXhlcyB0aGlzIGVycm9y LgoKSGVscGVkLWJ5OiBNYXR0IFJvcGVyIDxtYXR0aGV3LmQucm9wZXJAaW50ZWwuY29tPgpTaWdu ZWQtb2ZmLWJ5OiBUaG9tYXMgR3VtbWVyZXIgPHQuZ3VtbWVyZXJAZ21haWwuY29tPgotLS0KCj4g U29ycnksIEkgbWlzc2VkIHlvdXIgcGF0Y2ggd2hlbiB5b3UgZmlyc3Qgc2VudCBpdC4gIFRoYXQg dHlwZSBvZiBmaXgKPiBsb29rcyBsaWtlIGFuIG9rYXkgd29ya2Fyb3VuZCB3aGlsZSB3ZSBkbyBh IG1vcmUgaW4tZGVwdGggcmV3b3JrIG9mIHRoZQo+IHdhdGVybWFyayBzeXN0ZW0uICBIb3dldmVy IEkgdGhpbmsgeW91ciBwYXRjaCBjb3VsZCBjYXVzZSBhIGNyYXNoIGlmIHdlCj4gZGlzYWJsZSB0 aGUgcHJpbWFyeSBwbGFuZSB2aWEgdGhlIHVuaXZlcnNhbCBwbGFuZSBpbnRlcmZhY2U7IGlmIHdl IGRvCj4gdGhhdCwgcC0+cHJpLmJ5dGVzX3Blcl9waXhlbCBpcyBzZXQgdG8gMCwgYnV0IHNpbmNl IHdlJ3JlIG5vdyBwcmV0ZW5kaW5nCj4gdGhlIHByaW1hcnkgcGxhbmUgaXMgYWx3YXlzIGVuYWJs ZWQsIGlsa193bV9mYmMoKSBjYW4gZXZlbnR1YWxseSBnZXQKPiBjYWxsZWQgYW5kIHVzZSB0aGF0 IDAgaW4gdGhlIGRlbm9taW5hdG9yIG9mIGEgZGl2aXNpb24gb3BlcmF0aW9uLgo+Cj4gSWYgeW91 IGp1c3Qgc3F1YXNoIHRoZSBmb2xsb3dpbmcgY2hhbmdlIGludG8geW91ciBwYXRjaCwgSSB0aGlu ayBpdCBzaG91bGQgYmUKPiBzYWZlOgo+IFsuLi5dCgpUaGFuayB5b3UgdmVyeSBtdWNoIGZvciB0 aGUgc3VnZ2VzdGlvbiwgaGVyZSBpcyBhbiB1cGRhdGVkIHZlcnNpb24gb2YgdGhlIApwYXRjaC4K CiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jIHwgMjQgKysrKysrKysrKystLS0tLS0t LS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMTEgaW5zZXJ0aW9ucygrKSwgMTMgZGVsZXRpb25zKC0p CgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYyBiL2RyaXZlcnMv Z3B1L2RybS9pOTE1L2ludGVsX3BtLmMKaW5kZXggZmE0Y2NiMy4uNTU1Yjg5NiAxMDA2NDQKLS0t IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYworKysgYi9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9wbS5jCkBAIC0yMDQ1LDIyICsyMDQ1LDIwIEBAIHN0YXRpYyB2b2lkIGlsa19j b21wdXRlX3dtX3BhcmFtZXRlcnMoc3RydWN0IGRybV9jcnRjICpjcnRjLAogCXAtPnBpcGVfaHRv dGFsID0gaW50ZWxfY3J0Yy0+Y29uZmlnLT5iYXNlLmFkanVzdGVkX21vZGUuY3J0Y19odG90YWw7 CiAJcC0+cGl4ZWxfcmF0ZSA9IGlsa19waXBlX3BpeGVsX3JhdGUoZGV2LCBjcnRjKTsKIAotCWlm IChjcnRjLT5wcmltYXJ5LT5zdGF0ZS0+ZmIpIHsKLQkJcC0+cHJpLmVuYWJsZWQgPSB0cnVlOwor CWlmIChjcnRjLT5wcmltYXJ5LT5zdGF0ZS0+ZmIpCiAJCXAtPnByaS5ieXRlc19wZXJfcGl4ZWwg PQogCQkJY3J0Yy0+cHJpbWFyeS0+c3RhdGUtPmZiLT5iaXRzX3Blcl9waXhlbCAvIDg7Ci0JfSBl bHNlIHsKLQkJcC0+cHJpLmVuYWJsZWQgPSBmYWxzZTsKLQkJcC0+cHJpLmJ5dGVzX3Blcl9waXhl bCA9IDA7Ci0JfQorCWVsc2UKKwkJcC0+cHJpLmJ5dGVzX3Blcl9waXhlbCA9IDQ7CisKKwlwLT5j dXIuYnl0ZXNfcGVyX3BpeGVsID0gNDsKKwkvKgorCSAqIFRPRE86IGZvciBub3csIGFzc3VtZSBw cmltYXJ5IGFuZCBjdXJzb3IgcGxhbmVzIGFyZSBhbHdheXMgZW5hYmxlZC4KKwkgKiBTZXR0aW5n IHRoZW0gdG8gZmFsc2UgbWFrZXMgdGhlIHNjcmVlbiBmbGlja2VyLgorCSAqLworCXAtPnByaS5l bmFibGVkID0gdHJ1ZTsKKwlwLT5jdXIuZW5hYmxlZCA9IHRydWU7CiAKLQlpZiAoY3J0Yy0+Y3Vy c29yLT5zdGF0ZS0+ZmIpIHsKLQkJcC0+Y3VyLmVuYWJsZWQgPSB0cnVlOwotCQlwLT5jdXIuYnl0 ZXNfcGVyX3BpeGVsID0gNDsKLQl9IGVsc2UgewotCQlwLT5jdXIuZW5hYmxlZCA9IGZhbHNlOwot CQlwLT5jdXIuYnl0ZXNfcGVyX3BpeGVsID0gMDsKLQl9CiAJcC0+cHJpLmhvcml6X3BpeGVscyA9 IGludGVsX2NydGMtPmNvbmZpZy0+cGlwZV9zcmNfdzsKIAlwLT5jdXIuaG9yaXpfcGl4ZWxzID0g aW50ZWxfY3J0Yy0+YmFzZS5jdXJzb3ItPnN0YXRlLT5jcnRjX3c7CiAKLS0gCjIuNC4wLjE4NC5n OGUxOTc0ZQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K SW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0 dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK