From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sonika Jindal Subject: [PATCH] drm/i915: Handle HPD when it has actually occurred Date: Tue, 7 Jul 2015 14:22:20 +0530 Message-ID: <1436259140-777-1-git-send-email-sonika.jindal@intel.com> References: <20150706111816.GL5176@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 56FE36E9A2 for ; Tue, 7 Jul 2015 02:02:31 -0700 (PDT) In-Reply-To: <20150706111816.GL5176@intel.com> 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 List-Id: intel-gfx@lists.freedesktop.org V3JpdGluZyB0byBQQ0hfUE9SVF9IT1RQTFVHIGZvciBlYWNoIGludGVycnVwdCBpcyBub3QgcmVx dWlyZWQuCkhhbmRsZSBpdCBvbmx5IGlmIGhwZCBoYXMgYWN0dWFsbHkgb2NjdXJyZWQgbGlrZSB3 ZSBoYW5kbGUgb3RoZXIKaW50ZXJydXB0cy4KdjI6IE1ha2UgZmV3IHZhcmlhYmxlcyBsb2NhbCB0 byBpZiBibG9jayAoVmlsbGUpCnYzOiBBZGQgY2hlY2sgZm9yIGlieC9jcHQgYm90aCAoVmlsbGUp LgogICAgV2hpbGUgYXQgaXQsIHJlbW92ZSB0aGUgcmVkdW5kYW50IGNoZWNrIGZvciBob3RwbHVn X3RyaWdnZXIgZnJvbQogICAgcGNoX2dldF9ocGRfcGlucwoKU2lnbmVkLW9mZi1ieTogU29uaWth IEppbmRhbCA8c29uaWthLmppbmRhbEBpbnRlbC5jb20+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5 MTUvaTkxNV9pcnEuYyB8ICAgMzIgKysrKysrKysrKysrKysrKystLS0tLS0tLS0tLS0tLS0KIDEg ZmlsZSBjaGFuZ2VkLCAxNyBpbnNlcnRpb25zKCspLCAxNSBkZWxldGlvbnMoLSkKCmRpZmYgLS1n aXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaTkxNV9pcnEuYwppbmRleCBhNmZiZTY0Li5iYTJjMjdjIDEwMDY0NAotLS0gYS9kcml2ZXJz L2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf aXJxLmMKQEAgLTEyNjYsOSArMTI2Niw2IEBAIHN0YXRpYyB2b2lkIHBjaF9nZXRfaHBkX3BpbnMo dTMyICpwaW5fbWFzaywgdTMyICpsb25nX21hc2ssCiAJKnBpbl9tYXNrID0gMDsKIAkqbG9uZ19t YXNrID0gMDsKIAotCWlmICghaG90cGx1Z190cmlnZ2VyKQotCQlyZXR1cm47Ci0KIAlmb3JfZWFj aF9ocGRfcGluKGkpIHsKIAkJaWYgKChocGRbaV0gJiBob3RwbHVnX3RyaWdnZXIpID09IDApCiAJ CQljb250aW51ZTsKQEAgLTE2NTgsMTQgKzE2NTUsMTcgQEAgc3RhdGljIHZvaWQgaWJ4X2lycV9o YW5kbGVyKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsIHUzMiBwY2hfaWlyKQogCXN0cnVjdCBkcm1f aTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IGRldi0+ZGV2X3ByaXZhdGU7CiAJaW50IHBpcGU7CiAJ dTMyIGhvdHBsdWdfdHJpZ2dlciA9IHBjaF9paXIgJiBTREVfSE9UUExVR19NQVNLOwotCXUzMiBk aWdfaG90cGx1Z19yZWc7Ci0JdTMyIHBpbl9tYXNrLCBsb25nX21hc2s7CiAKLQlkaWdfaG90cGx1 Z19yZWcgPSBJOTE1X1JFQUQoUENIX1BPUlRfSE9UUExVRyk7Ci0JSTkxNV9XUklURShQQ0hfUE9S VF9IT1RQTFVHLCBkaWdfaG90cGx1Z19yZWcpOworCWlmIChob3RwbHVnX3RyaWdnZXIpIHsKKwkJ dTMyIGRpZ19ob3RwbHVnX3JlZywgcGluX21hc2ssIGxvbmdfbWFzazsKIAotCXBjaF9nZXRfaHBk X3BpbnMoJnBpbl9tYXNrLCAmbG9uZ19tYXNrLCBob3RwbHVnX3RyaWdnZXIsIGRpZ19ob3RwbHVn X3JlZywgaHBkX2lieCk7Ci0JaW50ZWxfaHBkX2lycV9oYW5kbGVyKGRldiwgcGluX21hc2ssIGxv bmdfbWFzayk7CisJCWRpZ19ob3RwbHVnX3JlZyA9IEk5MTVfUkVBRChQQ0hfUE9SVF9IT1RQTFVH KTsKKwkJSTkxNV9XUklURShQQ0hfUE9SVF9IT1RQTFVHLCBkaWdfaG90cGx1Z19yZWcpOworCisJ CXBjaF9nZXRfaHBkX3BpbnMoJnBpbl9tYXNrLCAmbG9uZ19tYXNrLCBob3RwbHVnX3RyaWdnZXIs CisJCQkJCQlkaWdfaG90cGx1Z19yZWcsIGhwZF9pYngpOworCQlpbnRlbF9ocGRfaXJxX2hhbmRs ZXIoZGV2LCBwaW5fbWFzaywgbG9uZ19tYXNrKTsKKwl9CiAKIAlpZiAocGNoX2lpciAmIFNERV9B VURJT19QT1dFUl9NQVNLKSB7CiAJCWludCBwb3J0ID0gZmZzKChwY2hfaWlyICYgU0RFX0FVRElP X1BPV0VSX01BU0spID4+CkBAIC0xNzU3LDE0ICsxNzU3LDE2IEBAIHN0YXRpYyB2b2lkIGNwdF9p cnFfaGFuZGxlcihzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LCB1MzIgcGNoX2lpcikKIAlzdHJ1Y3Qg ZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYgPSBkZXYtPmRldl9wcml2YXRlOwogCWludCBwaXBl OwogCXUzMiBob3RwbHVnX3RyaWdnZXIgPSBwY2hfaWlyICYgU0RFX0hPVFBMVUdfTUFTS19DUFQ7 Ci0JdTMyIGRpZ19ob3RwbHVnX3JlZzsKLQl1MzIgcGluX21hc2ssIGxvbmdfbWFzazsKIAotCWRp Z19ob3RwbHVnX3JlZyA9IEk5MTVfUkVBRChQQ0hfUE9SVF9IT1RQTFVHKTsKLQlJOTE1X1dSSVRF KFBDSF9QT1JUX0hPVFBMVUcsIGRpZ19ob3RwbHVnX3JlZyk7CisJaWYgKGhvdHBsdWdfdHJpZ2dl cikgeworCQl1MzIgZGlnX2hvdHBsdWdfcmVnLCBwaW5fbWFzaywgbG9uZ19tYXNrOwogCi0JcGNo X2dldF9ocGRfcGlucygmcGluX21hc2ssICZsb25nX21hc2ssIGhvdHBsdWdfdHJpZ2dlciwgZGln X2hvdHBsdWdfcmVnLCBocGRfY3B0KTsKLQlpbnRlbF9ocGRfaXJxX2hhbmRsZXIoZGV2LCBwaW5f bWFzaywgbG9uZ19tYXNrKTsKKwkJZGlnX2hvdHBsdWdfcmVnID0gSTkxNV9SRUFEKFBDSF9QT1JU X0hPVFBMVUcpOworCQlJOTE1X1dSSVRFKFBDSF9QT1JUX0hPVFBMVUcsIGRpZ19ob3RwbHVnX3Jl Zyk7CisJCXBjaF9nZXRfaHBkX3BpbnMoJnBpbl9tYXNrLCAmbG9uZ19tYXNrLCBob3RwbHVnX3Ry aWdnZXIsCisJCQkJCQlkaWdfaG90cGx1Z19yZWcsIGhwZF9jcHQpOworCQlpbnRlbF9ocGRfaXJx X2hhbmRsZXIoZGV2LCBwaW5fbWFzaywgbG9uZ19tYXNrKTsKKwl9CiAKIAlpZiAocGNoX2lpciAm IFNERV9BVURJT19QT1dFUl9NQVNLX0NQVCkgewogCQlpbnQgcG9ydCA9IGZmcygocGNoX2lpciAm IFNERV9BVURJT19QT1dFUl9NQVNLX0NQVCkgPj4KLS0gCjEuNy4xMC40CgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0 CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=