From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH] drm/i915: Always double check for a missed interrupt for new bottom halves Date: Tue, 5 Jul 2016 14:38:55 +0100 Message-ID: <577BB86F.3040906@linux.intel.com> References: <1467718145-22437-1-git-send-email-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTP id 6C2876E006 for ; Tue, 5 Jul 2016 13:38:57 +0000 (UTC) In-Reply-To: <1467718145-22437-1-git-send-email-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org Ck9uIDA1LzA3LzE2IDEyOjI5LCBDaHJpcyBXaWxzb24gd3JvdGU6Cj4gQWZ0ZXIgYXNzaWduaW5n IG91cnNlbHZlcyBhcyB0aGUgbmV3IGJvdHRvbS1oYWxmLCB3ZSBtdXN0IHBlcmZvcm0gYQo+IGN1 cnNvcnkgY2hlY2sgdG8gcHJldmVudCBhIG1pc3NlZCBpbnRlcnJ1cHQuICBFaXRoZXIgd2UgbWlz cyB0aGUgaW50ZXJydXB0Cj4gd2hpbHN0IHByb2dyYW1taW5nIHRoZSBoYXJkd2FyZSwgb3IgaWYg dGhlcmUgd2FzIGEgcHJldmlvdXMgd2FpdGVyIChmb3IKPiBhIGxhdGVyIHNlcW5vKSB0aGV5IG1h eSBiZSB3b2tlbiBpbnN0ZWFkIG9mIHVzIChkdWUgdG8gdGhlIGluaGVyZW50IHJhY2UKPiBpbiB0 aGUgdW5sb2NrZWQgcmVhZCBvZiBiLT50YXNrbGV0IGluIHRoZSBpcnEgaGFuZGxlcikgYW5kIHNv IHdlIG1pc3MgdGhlCj4gd2FrZSB1cC4KPgo+IFNwb3R0ZWQtYnk6IFR2cnRrbyBVcnN1bGluIDx0 dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+Cj4gU2lnbmVkLW9mZi1ieTogQ2hyaXMgV2lsc29uIDxj aHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gQ2M6IFR2cnRrbyBVcnN1bGluIDx0dnJ0a28udXJz dWxpbkBpbnRlbC5jb20+Cj4gLS0tCj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9icmVh ZGNydW1icy5jIHwgMTYgKysrKysrKysrKystLS0tLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDExIGlu c2VydGlvbnMoKyksIDUgZGVsZXRpb25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfYnJlYWRjcnVtYnMuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs X2JyZWFkY3J1bWJzLmMKPiBpbmRleCAwMDlkNmUxLi42ZmNiYjUyIDEwMDY0NAo+IC0tLSBhL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2JyZWFkY3J1bWJzLmMKPiArKysgYi9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pbnRlbF9icmVhZGNydW1icy5jCj4gQEAgLTY1LDcgKzY1LDcgQEAgc3RhdGlj IHZvaWQgaXJxX2Rpc2FibGUoc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKQo+ICAgCWVu Z2luZS0+aXJxX3Bvc3RlZCA9IGZhbHNlOwo+ICAgfQo+Cj4gLXN0YXRpYyBib29sIF9faW50ZWxf YnJlYWRjcnVtYnNfZW5hYmxlX2lycShzdHJ1Y3QgaW50ZWxfYnJlYWRjcnVtYnMgKmIpCj4gK3N0 YXRpYyB2b2lkIF9faW50ZWxfYnJlYWRjcnVtYnNfZW5hYmxlX2lycShzdHJ1Y3QgaW50ZWxfYnJl YWRjcnVtYnMgKmIpCj4gICB7Cj4gICAJc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5lID0K PiAgIAkJY29udGFpbmVyX29mKGIsIHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MsIGJyZWFkY3J1bWJz KTsKPiBAQCAtNzMsNyArNzMsNyBAQCBzdGF0aWMgYm9vbCBfX2ludGVsX2JyZWFkY3J1bWJzX2Vu YWJsZV9pcnEoc3RydWN0IGludGVsX2JyZWFkY3J1bWJzICpiKQo+Cj4gICAJYXNzZXJ0X3NwaW5f bG9ja2VkKCZiLT5sb2NrKTsKPiAgIAlpZiAoYi0+cnBtX3dha2Vsb2NrKQo+IC0JCXJldHVybiBm YWxzZTsKPiArCQlyZXR1cm47Cj4KPiAgIAkvKiBTaW5jZSB3ZSBhcmUgd2FpdGluZyBvbiBhIHJl cXVlc3QsIHRoZSBHUFUgc2hvdWxkIGJlIGJ1c3kKPiAgIAkgKiBhbmQgc2hvdWxkIGhhdmUgaXRz IG93biBycG0gcmVmZXJlbmNlLiBGb3IgY29tcGxldGVuZXNzLAo+IEBAIC05Myw4ICs5Myw2IEBA IHN0YXRpYyBib29sIF9faW50ZWxfYnJlYWRjcnVtYnNfZW5hYmxlX2lycShzdHJ1Y3QgaW50ZWxf YnJlYWRjcnVtYnMgKmIpCj4gICAJaWYgKCFiLT5pcnFfZW5hYmxlZCB8fAo+ICAgCSAgICB0ZXN0 X2JpdChlbmdpbmUtPmlkLCAmaTkxNS0+Z3B1X2Vycm9yLm1pc3NlZF9pcnFfcmluZ3MpKQo+ICAg CQltb2RfdGltZXIoJmItPmZha2VfaXJxLCBqaWZmaWVzICsgMSk7Cj4gLQo+IC0JcmV0dXJuIGVu Z2luZS0+aXJxX3Bvc3RlZDsKPiAgIH0KPgo+ICAgc3RhdGljIHZvaWQgX19pbnRlbF9icmVhZGNy dW1ic19kaXNhYmxlX2lycShzdHJ1Y3QgaW50ZWxfYnJlYWRjcnVtYnMgKmIpCj4gQEAgLTIzMyw3 ICsyMzEsMTUgQEAgc3RhdGljIGJvb2wgX19pbnRlbF9lbmdpbmVfYWRkX3dhaXQoc3RydWN0IGlu dGVsX2VuZ2luZV9jcyAqZW5naW5lLAo+ICAgCQlHRU1fQlVHX09OKHJiX2ZpcnN0KCZiLT53YWl0 ZXJzKSAhPSAmd2FpdC0+bm9kZSk7Cj4gICAJCWItPmZpcnN0X3dhaXQgPSB3YWl0Owo+ICAgCQlz bXBfc3RvcmVfbWIoYi0+dGFza2xldCwgd2FpdC0+dHNrKTsKPiAtCQlmaXJzdCA9IF9faW50ZWxf YnJlYWRjcnVtYnNfZW5hYmxlX2lycShiKTsKPiArCQkvKiBBZnRlciBhc3NpZ25pbmcgb3Vyc2Vs dmVzIGFzIHRoZSBuZXcgYm90dG9tLWhhbGYsIHdlIG11c3QKPiArCQkgKiBwZXJmb3JtIGEgY3Vy c29yeSBjaGVjayB0byBwcmV2ZW50IGEgbWlzc2VkIGludGVycnVwdC4KPiArCQkgKiBFaXRoZXIg d2UgbWlzcyB0aGUgaW50ZXJydXB0IHdoaWxzdCBwcm9ncmFtbWluZyB0aGUgaGFyZHdhcmUsCj4g KwkJICogb3IgaWYgdGhlcmUgd2FzIGEgcHJldmlvdXMgd2FpdGVyIChmb3IgYSBsYXRlciBzZXFu bykgdGhleQo+ICsJCSAqIG1heSBiZSB3b2tlbiBpbnN0ZWFkIG9mIHVzIChkdWUgdG8gdGhlIGlu aGVyZW50IHJhY2UKPiArCQkgKiBpbiB0aGUgdW5sb2NrZWQgcmVhZCBvZiBiLT50YXNrbGV0IGlu IHRoZSBpcnEgaGFuZGxlcikgYW5kCj4gKwkJICogc28gd2UgbWlzcyB0aGUgd2FrZSB1cC4KPiAr CQkgKi8KPiArCQlfX2ludGVsX2JyZWFkY3J1bWJzX2VuYWJsZV9pcnEoYik7Cj4gICAJfQo+ICAg CUdFTV9CVUdfT04oIWItPnRhc2tsZXQpOwo+ICAgCUdFTV9CVUdfT04oIWItPmZpcnN0X3dhaXQp OwoKUmV2aWV3ZWQtYnk6IFR2cnRrbyBVcnN1bGluIDx0dnJ0a28udXJzdWxpbkBpbnRlbC5jb20+ CgpSZWdhcmRzLAoKVHZydGtvCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVz a3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9p bnRlbC1nZngK