From mboxrd@z Thu Jan 1 00:00:00 1970 From: Imre Deak Subject: [PATCH] drm/i915/ddi: Avoid long delays during system suspend / eDP disabling Date: Wed, 31 May 2017 20:05:35 +0300 Message-ID: <1496250335-7627-1-git-send-email-imre.deak@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2691C6E294 for ; Wed, 31 May 2017 17:05:50 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org Cc: Zhang Rui List-Id: intel-gfx@lists.freedesktop.org QXRtIGRpc2FibGluZyBlaXRoZXIgRFAgb3IgZURQIG91dHB1dHMgY2FuIGdlbmVyYXRlIGEgc3B1 cmlvdXMgc2hvcnQKcHVsc2UgaW50ZXJydXB0LiBUaGUgcmVhc29uIGlzIHRoYXQgYWZ0ZXIgZGlz YWJsaW5nIHRoZSBwb3J0IHRoZSBzb3VyY2UKd2lsbCBzdG9wIHNlbmRpbmcgYSB2YWxpZCBzdHJl YW0gZGF0YSwgd2hpbGUgdGhlIHNpbmsgZXhwZWN0cyBlaXRoZXIgYQp2YWxpZCBzdHJlYW0gb3Ig dGhlIGlkbGUgcGF0dGVybi4gU2luY2UgbmVpdGhlciBvZiB0aGlzIGlzIHNlbnQgdGhlIHNpbmsK YXNzdW1lcyAoYWZ0ZXIgYW4gYXJiaXRyYXJ5IGRlbGF5KSB0aGF0IHRoZSBsaW5rIGlzIGxvc3Qg YW5kIHJlcXVlc3RzCmZvciBsaW5rIHJldHJhaW5pbmcgd2l0aCBhIHNob3J0IHB1bHNlLgoKVGhl IHNwdXJpb3VzIHB1bHNlIGlzIGEgcmVhbCBwcm9ibGVtIGF0IGxlYXN0IGZvciBlRFAgcGFuZWxz IHdpdGggbG9uZwpwb3dlci1vZmYgLyBwb3dlci1jeWNsZSBkZWxheXM6IGFzIHBhcnQgb2YgZGlz YWJsaW5nIHRoZSBvdXRwdXQgd2UKZGlzYWJsZSB0aGUgcGFuZWwgcG93ZXIuIFRoZSBzdWJzZXF1 ZW50IHNwdXJpb3VzIHNob3J0IHB1bHNlIGhhbmRsaW5nCndpbGwgaGF2ZSB0byB0dXJuIHRoZSBw b3dlciBiYWNrIG9uLCB3aGljaCBtZWFucyB0aGUgZHJpdmVyIGhhcyB0byBkbyBhCnJlZHVuZGFu dCB3YWl0IGZvciB0aGUgcG93ZXItb2ZmIGFuZCBwb3dlci1jeWNsZSBkZWxheXMuIER1cmluZyBz eXN0ZW0Kc3VzcGVuZCB0aGlzIGxlYWRzIHRvIGFuIHVubmVjZXNzYXJ5IGRlbGF5IHVwIHRvIH4x cyBvbiBzeXN0ZW1zIHdpdGgKc3VjaCBwYW5lbHMgYXMgcmVwb3J0ZWQgYnkgUnVpLgoKVG8gZml4 IHRoaXMgcHV0IHRoZSBzaW5rIHRvIERQTVMgRDMgc3RhdGUgYmVmb3JlIHR1cm5pbmcgb2ZmIHRo ZSBwb3J0LgpBY2NvcmRpbmcgdG8gdGhlIERQIHNwZWMgaW4gdGhpcyBzdGF0ZSB0aGUgc2luayBz aG91bGQgbm90IHJlcXVlc3QKcmV0cmFpbmluZy4gVGhpcyBpcyBhbHNvIHdoYXQgd2UgZG8gYWxy ZWFkeSBvbiBwcmUtZGRpIHBsYXRmb3Jtcy4KCkFzIGFuIGFsdGVybmF0aXZlIEkgYWxzbyB0cmll ZCBjb25maWd1cmluZyB0aGUgcG9ydCB0byBzZW5kIGlkbGUgcGF0dGVybgotIHdoaWNoIGlzIGFn YWluc3QgQlNQZWMgLSBhbmQgbGVhdmUgdGhlIHBvcnQgaW4gbm9ybWFsIG1vZGUgYmVmb3JlCnR1 cm5pbmcgb2ZmIHRoZSBwb3J0LiBOZWl0aGVyIG9mIHRoZXNlIHJlc29sdmVkIHRoZSBwcm9ibGVt LgoKQ2M6IFpoYW5nIFJ1aSA8cnVpLnpoYW5nQGludGVsLmNvbT4KQ2M6IERhdmlkIFdlaW5laGFs bCA8ZGF2aWQud2VpbmVoYWxsQGxpbnV4LmludGVsLmNvbT4KQ2M6IFZpbGxlIFN5cmrDpGzDpCA8 dmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20+ClJlcG9ydGVkLWFuZC10ZXN0ZWQtYnk6IFpo YW5nIFJ1aSA8cnVpLnpoYW5nQGludGVsLmNvbT4KU2lnbmVkLW9mZi1ieTogSW1yZSBEZWFrIDxp bXJlLmRlYWtAaW50ZWwuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RkaS5j IHwgMTAgKysrKysrKy0tLQogMSBmaWxlIGNoYW5nZWQsIDcgaW5zZXJ0aW9ucygrKSwgMyBkZWxl dGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kZGkuYyBi L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RkaS5jCmluZGV4IDA5MTRhZDkuLjhiYWM2Mjgg MTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2RkaS5jCisrKyBiL2RyaXZl cnMvZ3B1L2RybS9pOTE1L2ludGVsX2RkaS5jCkBAIC0xNzMyLDEyICsxNzMyLDE4IEBAIHN0YXRp YyB2b2lkIGludGVsX2RkaV9wb3N0X2Rpc2FibGUoc3RydWN0IGludGVsX2VuY29kZXIgKmludGVs X2VuY29kZXIsCiAJc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2ID0gdG9faTkxNShl bmNvZGVyLT5kZXYpOwogCWVudW0gcG9ydCBwb3J0ID0gaW50ZWxfZGRpX2dldF9lbmNvZGVyX3Bv cnQoaW50ZWxfZW5jb2Rlcik7CiAJc3RydWN0IGludGVsX2RpZ2l0YWxfcG9ydCAqZGlnX3BvcnQg PSBlbmNfdG9fZGlnX3BvcnQoZW5jb2Rlcik7CisJc3RydWN0IGludGVsX2RwICppbnRlbF9kcCA9 IE5VTEw7CiAJaW50IHR5cGUgPSBpbnRlbF9lbmNvZGVyLT50eXBlOwogCXVpbnQzMl90IHZhbDsK IAlib29sIHdhaXQgPSBmYWxzZTsKIAogCS8qIG9sZF9jcnRjX3N0YXRlIGFuZCBvbGRfY29ubl9z dGF0ZSBhcmUgTlVMTCB3aGVuIGNhbGxlZCBmcm9tIERQX01TVCAqLwogCisJaWYgKHR5cGUgPT0g SU5URUxfT1VUUFVUX0RQIHx8IHR5cGUgPT0gSU5URUxfT1VUUFVUX0VEUCkgeworCQlpbnRlbF9k cCA9IGVuY190b19pbnRlbF9kcChlbmNvZGVyKTsKKwkJaW50ZWxfZHBfc2lua19kcG1zKGludGVs X2RwLCBEUk1fTU9ERV9EUE1TX09GRik7CisJfQorCiAJdmFsID0gSTkxNV9SRUFEKERESV9CVUZf Q1RMKHBvcnQpKTsKIAlpZiAodmFsICYgRERJX0JVRl9DVExfRU5BQkxFKSB7CiAJCXZhbCAmPSB+ RERJX0JVRl9DVExfRU5BQkxFOwpAQCAtMTc1Myw5ICsxNzU5LDcgQEAgc3RhdGljIHZvaWQgaW50 ZWxfZGRpX3Bvc3RfZGlzYWJsZShzdHJ1Y3QgaW50ZWxfZW5jb2RlciAqaW50ZWxfZW5jb2RlciwK IAlpZiAod2FpdCkKIAkJaW50ZWxfd2FpdF9kZGlfYnVmX2lkbGUoZGV2X3ByaXYsIHBvcnQpOwog Ci0JaWYgKHR5cGUgPT0gSU5URUxfT1VUUFVUX0RQIHx8IHR5cGUgPT0gSU5URUxfT1VUUFVUX0VE UCkgewotCQlzdHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwID0gZW5jX3RvX2ludGVsX2RwKGVuY29k ZXIpOwotCQlpbnRlbF9kcF9zaW5rX2RwbXMoaW50ZWxfZHAsIERSTV9NT0RFX0RQTVNfT0ZGKTsK KwlpZiAoaW50ZWxfZHApIHsKIAkJaW50ZWxfZWRwX3BhbmVsX3ZkZF9vbihpbnRlbF9kcCk7CiAJ CWludGVsX2VkcF9wYW5lbF9vZmYoaW50ZWxfZHApOwogCX0KLS0gCjIuNy40CgpfX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBs aXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVz a3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK