From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mario Kleiner Subject: [PATCH 1/2] drm/amd/display: Fix race between vblank irq and pageflip irq. (v2) Date: Mon, 24 Apr 2017 11:46:44 +0200 Message-ID: <1493027205-13069-1-git-send-email-mario.kleiner.de@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: 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: Alex Deucher , =?UTF-8?q?Michel=20D=C3=A4nzer?= , amd-gfx@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org U2luY2UgREMgbm93IHVzZXMgQ1JUQ19WRVJUSUNBTF9JTlRFUlJVUFQwIGFzIFZCTEFOSyBpcnEg dHJpZ2dlcgphbmQgdmJsYW5rIGludGVycnVwdHMgYWN0dWFsbHkgaGFwcGVuIGVhcmxpZXN0IGF0 IHN0YXJ0IG9mIHZibGFuaywKaW5zdGVhZCBvZiBhIGJpdCBiZWZvcmUgdmJsYW5rLCB3ZSBubyBs b25nZXIgbmVlZCBzb21lIG9mIHRoZQpmdWRnaW5nIGxvZ2ljIHRvIGRlYWwgd2l0aCB0b28gZWFy bHkgdmJsYW5rIGlycSBoYW5kbGluZyAoZ3JlcCBmb3IKbGJfdmJsYW5rX2xlYWRfbGluZXMpLiBU aGlzIGl0c2VsZiBmaXhlcyBhIHBhZ2VmbGlwIHNjaGVkdWxpbmcKYnVnIGluIERDLCBjYXVzZWQg YnkgdW5pbml0aWFsaXplZCAgdXNlIG9mIGxiX3ZibGFua19sZWFkX2xpbmVzLAp3aXRoIGEgd3Jv bmcgc3RhcnR1cCB2YWx1ZSBvZiAwLiBUaGFua3MgdG8gdGhlIG5ldyB2YmxhbmsgaXJxCnRyaWdn ZXIgdGhpcyB2YWx1ZSBvZiB6ZXJvIGlzIG5vdyBhY3R1YWxseSBjb3JyZWN0IGZvciBEQyA6KS4K CkEgbmV3IHByb2JsZW0gaXMgdGhhdCB2YmxhbmsgaXJxJ3MgcmFjZSBhZ2FpbnN0IHBmbGlwIGly cSdzLAphbmQgYXMgYm90aCBjYW4gZmlyZSBhdCBmaXJzdCBsaW5lIG9mIHZibGFuaywgaXQgaXMg bm8gbG9uZ2VyCmd1YXJhbnRlZWQgdGhhdCB2YmxhbmsgaXJxIGhhbmRsaW5nICh0aGVyZWZvcmUg LT4gZHJtX2hhbmRsZV92YmxhbmsoKQotPiBkcm1fdXBkYXRlX3ZibGFua19jb3VudCgpKSBleGVj dXRlcyBiZWZvcmUgcGZsaXAgaXJxIGhhbmRsaW5nCmZvciBhIGdpdmVuIHZibGFuayBpbnRlcnZh bCB3aGVuIGEgcGFnZWZsaXAgY29tcGxldGVzLiBUaGVyZWZvcmUKdGhlIHZibGFuayBjb3VudCBh bmQgdGltZXN0YW1wcyBlbWl0dGVkIHRvIHVzZXItc3BhY2UgYXMgcGFydCBvZgp0aGUgcGFnZWZs aXAgY29tcGxldGlvbiBldmVudCB3aWxsIGJlIG9mdGVuIHN0YWxlIGFuZCBjYXVzZSBuZXcKdGlt ZXN0YW1waW5nIGFuZCBzd2FwIHNjaGVkdWxpbmcgZXJyb3JzIGluIHVzZXItc3BhY2UuCgpUaGlz IHdhcyBvYnNlcnZlZCB3aXRoIGxhcmdlIGZyZXF1ZW5jeSBvbiBSOSAzODAgVG9uZ2EgUHJvLgoK Rml4IHRoaXMgYnkgZW5mb3JjaW5nIGEgdmJsYW5rIGNvdW50K3RpbWVzdGFtcCB1cGRhdGUgcmln aHQKYmVmb3JlIGVtaXR0aW5nIHRoZSBwYWdlZmxpcCBjb21wbGV0aW9uIGV2ZW50IGZyb20gdGhl IHBmbGlwCmlycSBoYW5kbGVyLiBUaGUgbG9naWMgaW4gY29yZSBkcm1fdXBkYXRlX3ZibGFua19j b3VudCgpIG1ha2VzCnN1cmUgdGhhdCBubyByZWR1bmRhbnQgb3IgY29uZmxpY3RpbmcgdXBkYXRl cyBoYXBwZW4sIGlvdy4gdGhlCmNhbGwgdHVybnMgaW50byBhIG5vLW9wIGlmIGl0IHdhc24ndCBu ZWVkZWQgZm9yIHRoYXQgdmJsYW5rLApidXJuaW5nIGEgZmV3IG1pY3Jvc2Vjb25kcyBvZiBjcHUg dGltZSB0aG91Z2guCgpTdWNjZXNzZnVsbHkgdGVzdGVkIG9uIEFNRCBSOSAzODAgIlRvbmdhIFBy byIgKFZJL0RDRSAxMCkKd2l0aCBEQyBlbmFibGVkIG9uIHRoZSBjdXJyZW50IERDIHN0YWdpbmcg YnJhbmNoLiBJbmRlcGVuZGVudAptZWFzdXJlbWVudCBvZiBwYWdlZmxpcCBjb21wbGV0aW9uIHRp bWluZyB3aXRoIHNwZWNpYWwgaGFyZHdhcmUKbWVhc3VyZW1lbnQgZXF1aXBtZW50IG5vdyBjb25m aXJtcyBjb3JyZWN0IHBhZ2VmbGlwIHRpbWVzdGFtcHMKYW5kIGNvdW50cyBpbiB0aGUgcGFnZWZs aXAgY29tcGxldGlvbiBldmVudHMuCgp2MjogUmV2aWV3IGNvbW1lbnRzIGJ5IE1pY2hlbCwgZHJv cCBvdXRkYXRlZCBwYXJhZ3JhcGgKICAgIGFib3V0IHByb2JsZW0gYWxyZWFkeSBmaXhlZCBpbiAy bmQgcGF0Y2ggb2YgdGhlIHNlcmllcy4KICAgIEFkZCBhY2tlZC9yLWIgYnkgSGFycnkgYW5kIE1p Y2hlbC4KClNpZ25lZC1vZmYtYnk6IE1hcmlvIEtsZWluZXIgPG1hcmlvLmtsZWluZXIuZGVAZ21h aWwuY29tPgpBY2tlZC1ieTogSGFycnkgV2VudGxhbmQgPGhhcnJ5LndlbnRsYW5kQGFtZC5jb20+ ClJldmlld2VkLWJ5OiBNaWNoZWwgRMOkbnplciA8bWljaGVsLmRhZW56ZXJAYW1kLmNvbT4KCkNj OiBBbmRyZXkgR3JvZHpvdnNreSA8QW5kcmV5Lkdyb2R6b3Zza3lAYW1kLmNvbT4KQ2M6IEFsZXgg RGV1Y2hlciA8YWxleGFuZGVyLmRldWNoZXJAYW1kLmNvbT4KQ2M6IE1pY2hlbCBEw6RuemVyIDxt aWNoZWwuZGFlbnplckBhbWQuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9hbWQvZGlzcGxheS9h bWRncHVfZG0vYW1kZ3B1X2RtLmMgfCAzICsrKwogMSBmaWxlIGNoYW5nZWQsIDMgaW5zZXJ0aW9u cygrKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9hbWQvZGlzcGxheS9hbWRncHVfZG0v YW1kZ3B1X2RtLmMgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2Rpc3BsYXkvYW1kZ3B1X2RtL2FtZGdw dV9kbS5jCmluZGV4IDc5NDM2MmUuLjBkNzdiMGEgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2Ry bS9hbWQvZGlzcGxheS9hbWRncHVfZG0vYW1kZ3B1X2RtLmMKKysrIGIvZHJpdmVycy9ncHUvZHJt L2FtZC9kaXNwbGF5L2FtZGdwdV9kbS9hbWRncHVfZG0uYwpAQCAtMjA4LDYgKzIwOCw5IEBAIHN0 YXRpYyB2b2lkIGRtX3BmbGlwX2hpZ2hfaXJxKHZvaWQgKmludGVycnVwdF9wYXJhbXMpCiAJaWYg KGFtZGdwdV9jcnRjLT5ldmVudAogCQkJJiYgYW1kZ3B1X2NydGMtPmV2ZW50LT5ldmVudC5iYXNl LnR5cGUKIAkJCT09IERSTV9FVkVOVF9GTElQX0NPTVBMRVRFKSB7CisJCS8qIFVwZGF0ZSB0byBj b3JyZWN0IGNvdW50L3RzIGlmIHJhY2luZyB3aXRoIHZibGFuayBpcnEgKi8KKwkJZHJtX2FjY3Vy YXRlX3ZibGFua19jb3VudCgmYW1kZ3B1X2NydGMtPmJhc2UpOworCiAJCWRybV9jcnRjX3NlbmRf dmJsYW5rX2V2ZW50KCZhbWRncHVfY3J0Yy0+YmFzZSwgYW1kZ3B1X2NydGMtPmV2ZW50KTsKIAkJ LyogcGFnZSBmbGlwIGNvbXBsZXRlZC4gY2xlYW4gdXAgKi8KIAkJYW1kZ3B1X2NydGMtPmV2ZW50 ID0gTlVMTDsKLS0gCjIuNy40CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVz a3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9k cmktZGV2ZWwK