From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Y.C. Chen" Subject: [PATCH] drm/ast: Fixed system hanged if disable P2A Date: Thu, 26 Jan 2017 09:45:40 +0800 Message-ID: <1485395140-8230-1-git-send-email-yc_chen@aspeedtech.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from msr18.hinet.net (msr18.hinet.net [168.95.4.118]) by gabe.freedesktop.org (Postfix) with ESMTP id 3EE1C6EAE9 for ; Thu, 26 Jan 2017 01:45:54 +0000 (UTC) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org Cc: airlied@redhat.com, eich@suse.com List-Id: dri-devel@lists.freedesktop.org RnJvbTogIlkuQy4gQ2hlbiIgPHljX2NoZW5AYXNwZWVkdGVjaC5jb20+CgpUaGUgb3JpZ2luYWwg YXN0IGRyaXZlciB3aWxsIGFjY2VzcyBzb21lIEJNQyBjb25maWd1cmF0aW9uIHRocm91Z2ggUDJB IGJyaWRnZQp0aGF0IGNhbiBiZSBkaXNhYmxlZCBzaW5jZSBBU1QyMzAwIGFuZCBhZnRlci4KSXQg d2lsbCBjYXVzZSBzeXN0ZW0gaGFuZ2VkIGlmIFAyQSBicmlkZ2UgaXMgZGlzYWJsZWQuCkhlcmUg aXMgdGhlIHVwZGF0ZSB0byBmaXggaXQuCgpTaWduZWQtb2ZmLWJ5OiBZLkMuIENoZW4gPHljX2No ZW5AYXNwZWVkdGVjaC5jb20+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2FzdC9hc3RfZHJ2LmggIHwg ICAxICsKIGRyaXZlcnMvZ3B1L2RybS9hc3QvYXN0X21haW4uYyB8IDE1NiArKysrKysrKysrKysr KysrKysrKysrLS0tLS0tLS0tLS0tLS0tLS0tLQogZHJpdmVycy9ncHUvZHJtL2FzdC9hc3RfcG9z dC5jIHwgIDE4ICsrKy0tCiAzIGZpbGVzIGNoYW5nZWQsIDk2IGluc2VydGlvbnMoKyksIDc5IGRl bGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9hc3QvYXN0X2Rydi5oIGIv ZHJpdmVycy9ncHUvZHJtL2FzdC9hc3RfZHJ2LmgKaW5kZXggOTA4MDExZC4uN2FiZGE5NCAxMDA2 NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL2FzdC9hc3RfZHJ2LmgKKysrIGIvZHJpdmVycy9ncHUv ZHJtL2FzdC9hc3RfZHJ2LmgKQEAgLTExMyw2ICsxMTMsNyBAQCBzdHJ1Y3QgYXN0X3ByaXZhdGUg ewogCXN0cnVjdCB0dG1fYm9fa21hcF9vYmogY2FjaGVfa21hcDsKIAlpbnQgbmV4dF9jdXJzb3I7 CiAJYm9vbCBzdXBwb3J0X3dpZGVfc2NyZWVuOworCWJvb2wgRGlzYWJsZVAyQTsKIAogCWVudW0g YXN0X3R4X2NoaXAgdHhfY2hpcF90eXBlOwogCXU4IGRwNTAxX21heGNsazsKZGlmZiAtLWdpdCBh L2RyaXZlcnMvZ3B1L2RybS9hc3QvYXN0X21haW4uYyBiL2RyaXZlcnMvZ3B1L2RybS9hc3QvYXN0 X21haW4uYwppbmRleCBmNzVjNjQyLi5jMzc0Njg1IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9k cm0vYXN0L2FzdF9tYWluLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2FzdC9hc3RfbWFpbi5jCkBA IC0xMjQsNiArMTI0LDExIEBAIHN0YXRpYyBpbnQgYXN0X2RldGVjdF9jaGlwKHN0cnVjdCBkcm1f ZGV2aWNlICpkZXYsIGJvb2wgKm5lZWRfcG9zdCkKIAl9IGVsc2UKIAkJKm5lZWRfcG9zdCA9IGZh bHNlOwogCisJLyogQ2hlY2sgUDJBIEFjY2VzcyAqLworCWFzdC0+RGlzYWJsZVAyQSA9IHRydWU7 CisJZGF0YSA9IGFzdF9yZWFkMzIoYXN0LCAweGYwMDQpOworCWlmIChkYXRhICE9IDB4RkZGRkZG RkYpIGFzdC0+RGlzYWJsZVAyQSA9IGZhbHNlOworCiAJLyogQ2hlY2sgaWYgd2Ugc3VwcG9ydCB3 aWRlIHNjcmVlbiAqLwogCXN3aXRjaCAoYXN0LT5jaGlwKSB7CiAJY2FzZSBBU1QxMTgwOgpAQCAt MTQwLDE1ICsxNDUsMTcgQEAgc3RhdGljIGludCBhc3RfZGV0ZWN0X2NoaXAoc3RydWN0IGRybV9k ZXZpY2UgKmRldiwgYm9vbCAqbmVlZF9wb3N0KQogCQkJYXN0LT5zdXBwb3J0X3dpZGVfc2NyZWVu ID0gdHJ1ZTsKIAkJZWxzZSB7CiAJCQlhc3QtPnN1cHBvcnRfd2lkZV9zY3JlZW4gPSBmYWxzZTsK LQkJCS8qIFJlYWQgU0NVN2MgKHNpbGljb24gcmV2aXNpb24gcmVnaXN0ZXIpICovCi0JCQlhc3Rf d3JpdGUzMihhc3QsIDB4ZjAwNCwgMHgxZTZlMDAwMCk7Ci0JCQlhc3Rfd3JpdGUzMihhc3QsIDB4 ZjAwMCwgMHgxKTsKLQkJCWRhdGEgPSBhc3RfcmVhZDMyKGFzdCwgMHgxMjA3Yyk7Ci0JCQlkYXRh ICY9IDB4MzAwOwotCQkJaWYgKGFzdC0+Y2hpcCA9PSBBU1QyMzAwICYmIGRhdGEgPT0gMHgwKSAv KiBhc3QxMzAwICovCi0JCQkJYXN0LT5zdXBwb3J0X3dpZGVfc2NyZWVuID0gdHJ1ZTsKLQkJCWlm IChhc3QtPmNoaXAgPT0gQVNUMjQwMCAmJiBkYXRhID09IDB4MTAwKSAvKiBhc3QxNDAwICovCi0J CQkJYXN0LT5zdXBwb3J0X3dpZGVfc2NyZWVuID0gdHJ1ZTsKKwkJCWlmIChhc3QtPkRpc2FibGVQ MkEgPT0gZmFsc2UpIHsKKwkJCQkvKiBSZWFkIFNDVTdjIChzaWxpY29uIHJldmlzaW9uIHJlZ2lz dGVyKSAqLworCQkJCWFzdF93cml0ZTMyKGFzdCwgMHhmMDA0LCAweDFlNmUwMDAwKTsKKwkJCQlh c3Rfd3JpdGUzMihhc3QsIDB4ZjAwMCwgMHgxKTsKKwkJCQlkYXRhID0gYXN0X3JlYWQzMihhc3Qs IDB4MTIwN2MpOworCQkJCWRhdGEgJj0gMHgzMDA7CisJCQkJaWYgKGFzdC0+Y2hpcCA9PSBBU1Qy MzAwICYmIGRhdGEgPT0gMHgwKSAvKiBhc3QxMzAwICovCisJCQkJCWFzdC0+c3VwcG9ydF93aWRl X3NjcmVlbiA9IHRydWU7CisJCQkJaWYgKGFzdC0+Y2hpcCA9PSBBU1QyNDAwICYmIGRhdGEgPT0g MHgxMDApIC8qIGFzdDE0MDAgKi8KKwkJCQkJYXN0LT5zdXBwb3J0X3dpZGVfc2NyZWVuID0gdHJ1 ZTsKKwkJCX0KIAkJfQogCQlicmVhazsKIAl9CkBAIC0yMTYsODAgKzIyMyw4MSBAQCBzdGF0aWMg aW50IGFzdF9nZXRfZHJhbV9pbmZvKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpCiAJdWludDMyX3Qg ZGF0YSwgZGF0YTI7CiAJdWludDMyX3QgZGVudW0sIG51bSwgZGl2LCByZWZfcGxsOwogCi0JYXN0 X3dyaXRlMzIoYXN0LCAweGYwMDQsIDB4MWU2ZTAwMDApOwotCWFzdF93cml0ZTMyKGFzdCwgMHhm MDAwLCAweDEpOwotCi0KLQlhc3Rfd3JpdGUzMihhc3QsIDB4MTAwMDAsIDB4ZmM2MDAzMDkpOwot Ci0JZG8gewotCQlpZiAocGNpX2NoYW5uZWxfb2ZmbGluZShkZXYtPnBkZXYpKQotCQkJcmV0dXJu IC1FSU87Ci0JfSB3aGlsZSAoYXN0X3JlYWQzMihhc3QsIDB4MTAwMDApICE9IDB4MDEpOwotCWRh dGEgPSBhc3RfcmVhZDMyKGFzdCwgMHgxMDAwNCk7Ci0KLQlpZiAoZGF0YSAmIDB4NDApCisJaWYg KGFzdC0+RGlzYWJsZVAyQSkKKwl7CiAJCWFzdC0+ZHJhbV9idXNfd2lkdGggPSAxNjsKKwkJYXN0 LT5kcmFtX3R5cGUgPSBBU1RfRFJBTV8xR3gxNjsKKwkJYXN0LT5tY2xrID0gMzk2OworCX0KIAll bHNlCi0JCWFzdC0+ZHJhbV9idXNfd2lkdGggPSAzMjsKKwl7CisJCWFzdF93cml0ZTMyKGFzdCwg MHhmMDA0LCAweDFlNmUwMDAwKTsKKwkJYXN0X3dyaXRlMzIoYXN0LCAweGYwMDAsIDB4MSk7CisJ CWRhdGEgPSBhc3RfcmVhZDMyKGFzdCwgMHgxMDAwNCk7CisKKwkJaWYgKGRhdGEgJiAweDQwKQor CQkJYXN0LT5kcmFtX2J1c193aWR0aCA9IDE2OworCQllbHNlCisJCQlhc3QtPmRyYW1fYnVzX3dp ZHRoID0gMzI7CisKKwkJaWYgKGFzdC0+Y2hpcCA9PSBBU1QyMzAwIHx8IGFzdC0+Y2hpcCA9PSBB U1QyNDAwKSB7CisJCQlzd2l0Y2ggKGRhdGEgJiAweDAzKSB7CisJCQljYXNlIDA6CisJCQkJYXN0 LT5kcmFtX3R5cGUgPSBBU1RfRFJBTV81MTJNeDE2OworCQkJCWJyZWFrOworCQkJZGVmYXVsdDoK KwkJCWNhc2UgMToKKwkJCQlhc3QtPmRyYW1fdHlwZSA9IEFTVF9EUkFNXzFHeDE2OworCQkJCWJy ZWFrOworCQkJY2FzZSAyOgorCQkJCWFzdC0+ZHJhbV90eXBlID0gQVNUX0RSQU1fMkd4MTY7CisJ CQkJYnJlYWs7CisJCQljYXNlIDM6CisJCQkJYXN0LT5kcmFtX3R5cGUgPSBBU1RfRFJBTV80R3gx NjsKKwkJCQlicmVhazsKKwkJCX0KKwkJfSBlbHNlIHsKKwkJCXN3aXRjaCAoZGF0YSAmIDB4MGMp IHsKKwkJCWNhc2UgMDoKKwkJCWNhc2UgNDoKKwkJCQlhc3QtPmRyYW1fdHlwZSA9IEFTVF9EUkFN XzUxMk14MTY7CisJCQkJYnJlYWs7CisJCQljYXNlIDg6CisJCQkJaWYgKGRhdGEgJiAweDQwKQor CQkJCQlhc3QtPmRyYW1fdHlwZSA9IEFTVF9EUkFNXzFHeDE2OworCQkJCWVsc2UKKwkJCQkJYXN0 LT5kcmFtX3R5cGUgPSBBU1RfRFJBTV81MTJNeDMyOworCQkJCWJyZWFrOworCQkJY2FzZSAweGM6 CisJCQkJYXN0LT5kcmFtX3R5cGUgPSBBU1RfRFJBTV8xR3gzMjsKKwkJCQlicmVhazsKKwkJCX0K KwkJfQogCi0JaWYgKGFzdC0+Y2hpcCA9PSBBU1QyMzAwIHx8IGFzdC0+Y2hpcCA9PSBBU1QyNDAw KSB7Ci0JCXN3aXRjaCAoZGF0YSAmIDB4MDMpIHsKLQkJY2FzZSAwOgotCQkJYXN0LT5kcmFtX3R5 cGUgPSBBU1RfRFJBTV81MTJNeDE2OwotCQkJYnJlYWs7Ci0JCWRlZmF1bHQ6Ci0JCWNhc2UgMToK LQkJCWFzdC0+ZHJhbV90eXBlID0gQVNUX0RSQU1fMUd4MTY7Ci0JCQlicmVhazsKLQkJY2FzZSAy OgotCQkJYXN0LT5kcmFtX3R5cGUgPSBBU1RfRFJBTV8yR3gxNjsKLQkJCWJyZWFrOworCQlkYXRh ID0gYXN0X3JlYWQzMihhc3QsIDB4MTAxMjApOworCQlkYXRhMiA9IGFzdF9yZWFkMzIoYXN0LCAw eDEwMTcwKTsKKwkJaWYgKGRhdGEyICYgMHgyMDAwKQorCQkJcmVmX3BsbCA9IDE0MzE4OworCQll bHNlCisJCQlyZWZfcGxsID0gMTIwMDA7CisKKwkJZGVudW0gPSBkYXRhICYgMHgxZjsKKwkJbnVt ID0gKGRhdGEgJiAweDNmZTApID4+IDU7CisJCWRhdGEgPSAoZGF0YSAmIDB4YzAwMCkgPj4gMTQ7 CisJCXN3aXRjaCAoZGF0YSkgewogCQljYXNlIDM6Ci0JCQlhc3QtPmRyYW1fdHlwZSA9IEFTVF9E UkFNXzRHeDE2OwotCQkJYnJlYWs7Ci0JCX0KLQl9IGVsc2UgewotCQlzd2l0Y2ggKGRhdGEgJiAw eDBjKSB7Ci0JCWNhc2UgMDoKLQkJY2FzZSA0OgotCQkJYXN0LT5kcmFtX3R5cGUgPSBBU1RfRFJB TV81MTJNeDE2OworCQkJZGl2ID0gMHg0OwogCQkJYnJlYWs7Ci0JCWNhc2UgODoKLQkJCWlmIChk YXRhICYgMHg0MCkKLQkJCQlhc3QtPmRyYW1fdHlwZSA9IEFTVF9EUkFNXzFHeDE2OwotCQkJZWxz ZQotCQkJCWFzdC0+ZHJhbV90eXBlID0gQVNUX0RSQU1fNTEyTXgzMjsKKwkJY2FzZSAyOgorCQlj YXNlIDE6CisJCQlkaXYgPSAweDI7CiAJCQlicmVhazsKLQkJY2FzZSAweGM6Ci0JCQlhc3QtPmRy YW1fdHlwZSA9IEFTVF9EUkFNXzFHeDMyOworCQlkZWZhdWx0OgorCQkJZGl2ID0gMHgxOwogCQkJ YnJlYWs7CiAJCX0KKwkJYXN0LT5tY2xrID0gcmVmX3BsbCAqIChudW0gKyAyKSAvIChkZW51bSAr IDIpICogKGRpdiAqIDEwMDApOwogCX0KLQotCWRhdGEgPSBhc3RfcmVhZDMyKGFzdCwgMHgxMDEy MCk7Ci0JZGF0YTIgPSBhc3RfcmVhZDMyKGFzdCwgMHgxMDE3MCk7Ci0JaWYgKGRhdGEyICYgMHgy MDAwKQotCQlyZWZfcGxsID0gMTQzMTg7Ci0JZWxzZQotCQlyZWZfcGxsID0gMTIwMDA7Ci0KLQlk ZW51bSA9IGRhdGEgJiAweDFmOwotCW51bSA9IChkYXRhICYgMHgzZmUwKSA+PiA1OwotCWRhdGEg PSAoZGF0YSAmIDB4YzAwMCkgPj4gMTQ7Ci0Jc3dpdGNoIChkYXRhKSB7Ci0JY2FzZSAzOgotCQlk aXYgPSAweDQ7Ci0JCWJyZWFrOwotCWNhc2UgMjoKLQljYXNlIDE6Ci0JCWRpdiA9IDB4MjsKLQkJ YnJlYWs7Ci0JZGVmYXVsdDoKLQkJZGl2ID0gMHgxOwotCQlicmVhazsKLQl9Ci0JYXN0LT5tY2xr ID0gcmVmX3BsbCAqIChudW0gKyAyKSAvIChkZW51bSArIDIpICogKGRpdiAqIDEwMDApOwogCXJl dHVybiAwOwogfQogCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYXN0L2FzdF9wb3N0LmMg Yi9kcml2ZXJzL2dwdS9kcm0vYXN0L2FzdF9wb3N0LmMKaW5kZXggODEwYzUxZC4uNTMzMWVlMSAx MDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL2FzdC9hc3RfcG9zdC5jCisrKyBiL2RyaXZlcnMv Z3B1L2RybS9hc3QvYXN0X3Bvc3QuYwpAQCAtMzc5LDEyICszNzksMjAgQEAgdm9pZCBhc3RfcG9z dF9ncHUoc3RydWN0IGRybV9kZXZpY2UgKmRldikKIAlhc3Rfb3Blbl9rZXkoYXN0KTsKIAlhc3Rf c2V0X2RlZl9leHRfcmVnKGRldik7CiAKLQlpZiAoYXN0LT5jaGlwID09IEFTVDIzMDAgfHwgYXN0 LT5jaGlwID09IEFTVDI0MDApCi0JCWFzdF9pbml0X2RyYW1fMjMwMChkZXYpOwotCWVsc2UKLQkJ YXN0X2luaXRfZHJhbV9yZWcoZGV2KTsKKwlpZiAoYXN0LT5EaXNhYmxlUDJBID09IGZhbHNlKQor CXsKKwkJaWYgKGFzdC0+Y2hpcCA9PSBBU1QyMzAwIHx8IGFzdC0+Y2hpcCA9PSBBU1QyNDAwKQor CQkJYXN0X2luaXRfZHJhbV8yMzAwKGRldik7CisJCWVsc2UKKwkJCWFzdF9pbml0X2RyYW1fcmVn KGRldik7CiAKLQlhc3RfaW5pdF8zcmR0eChkZXYpOworCQlhc3RfaW5pdF8zcmR0eChkZXYpOwor CX0KKwllbHNlCisJeworCQlpZiAoYXN0LT50eF9jaGlwX3R5cGUgIT0gQVNUX1RYX05PTkUpCisJ CQlhc3Rfc2V0X2luZGV4X3JlZ19tYXNrKGFzdCwgQVNUX0lPX0NSVENfUE9SVCwgMHhhMywgMHhj ZiwgMHg4MCk7CS8qIEVuYWJsZSBEVk8gKi8KKwl9CiB9CiAKIC8qIEFTVCAyMzAwIERSQU0gc2V0 dGluZ3MgKi8KLS0gCjEuOC4zLjEKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVk ZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZv L2RyaS1kZXZlbAo=