From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Yao Subject: [PATCH v1.1] drm/rockchip: fix race with kms hotplug and fbdev Date: Tue, 1 Aug 2017 16:11:43 +0800 Message-ID: <1501575103-20136-1-git-send-email-mark.yao@rock-chips.com> References: <1501494601-7140-1-git-send-email-mark.yao@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1501494601-7140-1-git-send-email-mark.yao@rock-chips.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Mark Yao , David Airlie , Heiko Stuebner Cc: linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org List-Id: linux-rockchip.vger.kernel.org QWNjb3JkaW5nIHRvIHRoZSBrZXJuZWxkb2NbMF0sIHNob3VsZCBkbyBmYmRldiBzZXR1cCBiZWZv cmUgY2FsbGluZwpkcm1fa21zX2hlbHBlcl9wb2xsX2luaXQoKSwgb3RoZXJ3aXNlLCBLbXMgaG90 cGx1ZyBldmVudCBtYXkgcmFjZQppbnRvIGZiZGV2IGhlbHBlciBpbml0aWFsLCBhbmQgZmJfaGVs cGVyLT5kZXYgbWF5IGJlIE5VTEwgcG9pbnRlciwKdGhhdCB3b3VsZCBjYXVzZSB0aGUgYnVnOgpb ICAgIDAuNzM1NDExXSBbMDAwMDAyMDBdICpwZ2Q9MDAwMDAwMDBmNmZmZTAwMywgKnB1ZD0wMDAw MDAwMGY2ZmZlMDAzLCAqcG1kPTAwMDAwMDAwMDAwMDAwMDAKWyAgICAwLjczNjE1Nl0gSW50ZXJu YWwgZXJyb3I6IE9vcHM6IDk2MDAwMDA1IFsjMV0gUFJFRU1QVCBTTVAKWyAgICAwLjczNjY0OF0g TW9kdWxlcyBsaW5rZWQgaW46ClsgICAgMC43MzY5MzBdIENQVTogMiBQSUQ6IDIwIENvbW06IGt3 b3JrZXIvMjowIE5vdCB0YWludGVkIDQuNC40MSAjMjAKWyAgICAwLjczNzQ4MF0gSGFyZHdhcmUg bmFtZTogUm9ja2NoaXAgUkszMzk5IEJvYXJkIHJldjIgKEJPWCkgKERUKQpbICAgIDAuNzM4MDIw XSBXb3JrcXVldWU6IGV2ZW50cyBjZG5fZHBfcGRfZXZlbnRfd29yawpbICAgIDAuNzM4NDQ3XSB0 YXNrOiBmZmZmZmZjMGYyMWYzMTAwIHRpOiBmZmZmZmZjMGYyMjE4MDAwIHRhc2sudGk6IGZmZmZm ZmMwZjIyMTgwMDAKWyAgICAwLjczOTEwOV0gUEMgaXMgYXQgbXV0ZXhfbG9jaysweDE0LzB4NDQK WyAgICAwLjczOTQ2OV0gTFIgaXMgYXQgZHJtX2ZiX2hlbHBlcl9ob3RwbHVnX2V2ZW50KzB4MzAv MHgxMTQKWyAgICAwLjc1NjI1M10gWzxmZmZmZmY4MDA4YTM0NGY0Pl0gbXV0ZXhfbG9jaysweDE0 LzB4NDQKWyAgICAwLjc1NjI2MF0gWzxmZmZmZmY4MDA4NDQ1NzA4Pl0gZHJtX2ZiX2hlbHBlcl9o b3RwbHVnX2V2ZW50KzB4MzAvMHgxMTQKWyAgICAwLjc1NjI3MV0gWzxmZmZmZmY4MDA4NDczYzg0 Pl0gcm9ja2NoaXBfZHJtX291dHB1dF9wb2xsX2NoYW5nZWQrMHgxOC8weDIwClsgICAgMC43NTYy ODBdIFs8ZmZmZmZmODAwODQzOWZjYz5dIGRybV9rbXNfaGVscGVyX2hvdHBsdWdfZXZlbnQrMHgy OC8weDM0ClsgICAgMC43NTYyODZdIFs8ZmZmZmZmODAwODQ2YzQ0ND5dIGNkbl9kcF9wZF9ldmVu dF93b3JrKzB4Mzk0LzB4M2M0ClsgICAgMC43NTYyOTVdIFs8ZmZmZmZmODAwODBiMmIzOD5dIHBy b2Nlc3Nfb25lX3dvcmsrMHgyMTgvMHgzZTAKWyAgICAwLjc1NjMwMl0gWzxmZmZmZmY4MDA4MGIz NTM4Pl0gd29ya2VyX3RocmVhZCsweDJlOC8weDQwNApbICAgIDAuNzU2MzA4XSBbPGZmZmZmZjgw MDgwYjdlNzA+XSBrdGhyZWFkKzB4ZTgvMHhmMApbICAgIDAuNzU2MzE2XSBbPGZmZmZmZjgwMDgw ODI2OTA+XSByZXRfZnJvbV9mb3JrKzB4MTAvMHg0MAoKWzBdOiBodHRwczovLzAxLm9yZy9saW51 eGdyYXBoaWNzL2dmeC1kb2NzL2RybS9ncHUvZHJtLWttcy1oZWxwZXJzLmh0bWwKClNpZ25lZC1v ZmYtYnk6IE1hcmsgWWFvIDxtYXJrLnlhb0Byb2NrLWNoaXBzLmNvbT4KLS0tCkNoYW5nZXMgaW4g djEuMToKLSBBY2NvcmRpbmcgdG8gdGhlIGtlcm5lbGRvYywgZml4IHRoZSByYWNlIGJ1ZyBpbiBn ZW5lcmljIHdheS4KCiBkcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAvcm9ja2NoaXBfZHJtX2Rydi5j IHwgMTMgKysrKysrLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDYgaW5zZXJ0aW9ucygrKSwgNyBk ZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAvcm9ja2No aXBfZHJtX2Rydi5jIGIvZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL3JvY2tjaGlwX2RybV9kcnYu YwppbmRleCA4NDhlZGNmLi5jNDFmNDhhIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vcm9j a2NoaXAvcm9ja2NoaXBfZHJtX2Rydi5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9y b2NrY2hpcF9kcm1fZHJ2LmMKQEAgLTE2MSwyMiArMTYxLDIxIEBAIHN0YXRpYyBpbnQgcm9ja2No aXBfZHJtX2JpbmQoc3RydWN0IGRldmljZSAqZGV2KQogCSAqLwogCWRybV9kZXYtPmlycV9lbmFi bGVkID0gdHJ1ZTsKIAotCS8qIGluaXQga21zIHBvbGwgZm9yIGhhbmRsaW5nIGhwZCAqLwotCWRy bV9rbXNfaGVscGVyX3BvbGxfaW5pdChkcm1fZGV2KTsKLQogCXJldCA9IHJvY2tjaGlwX2RybV9m YmRldl9pbml0KGRybV9kZXYpOwogCWlmIChyZXQpCi0JCWdvdG8gZXJyX2ttc19oZWxwZXJfcG9s bF9maW5pOworCQlnb3RvIGVycl91bmJpbmRfYWxsOworCisJLyogaW5pdCBrbXMgcG9sbCBmb3Ig aGFuZGxpbmcgaHBkICovCisJZHJtX2ttc19oZWxwZXJfcG9sbF9pbml0KGRybV9kZXYpOwogCiAJ cmV0ID0gZHJtX2Rldl9yZWdpc3Rlcihkcm1fZGV2LCAwKTsKIAlpZiAocmV0KQotCQlnb3RvIGVy cl9mYmRldl9maW5pOworCQlnb3RvIGVycl9rbXNfaGVscGVyX3BvbGxfZmluaTsKIAogCXJldHVy biAwOwotZXJyX2ZiZGV2X2Zpbmk6Ci0Jcm9ja2NoaXBfZHJtX2ZiZGV2X2ZpbmkoZHJtX2Rldik7 CiBlcnJfa21zX2hlbHBlcl9wb2xsX2Zpbmk6CiAJZHJtX2ttc19oZWxwZXJfcG9sbF9maW5pKGRy bV9kZXYpOworCXJvY2tjaGlwX2RybV9mYmRldl9maW5pKGRybV9kZXYpOwogZXJyX3VuYmluZF9h bGw6CiAJY29tcG9uZW50X3VuYmluZF9hbGwoZGV2LCBkcm1fZGV2KTsKIGVycl9tb2RlX2NvbmZp Z19jbGVhbnVwOgotLSAKMS45LjEKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m by9kcmktZGV2ZWwK