From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Michel_D=c3=a4nzer?= Subject: Re: [PATCH v2 3/4] drm: Refactor vblank sequence number comparison Date: Wed, 22 Mar 2017 17:54:49 +0900 Message-ID: References: <20170317202030.24410-1-chris@chris-wilson.co.uk> <20170317202030.24410-3-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20170317202030.24410-3-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Chris Wilson Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org T24gMTgvMDMvMTcgMDU6MjAgQU0sIENocmlzIFdpbHNvbiB3cm90ZToKPiBNb3ZlIHRoZSByZXBl YXRlZCAoYSAtIGIpIDw9ICgxIDw8IDIzKSB0byBpdHMgb3duIGZ1bmN0aW9uLgo+IAo+IFNpZ25l ZC1vZmYtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgo+IENjOiBW aWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tPgo+IENjOiBEYW5p ZWwgVmV0dGVyIDxkYW5pZWwudmV0dGVyQGZmd2xsLmNoPgo+IC0tLQo+ICBkcml2ZXJzL2dwdS9k cm0vZHJtX2lycS5jIHwgMTQgKysrKysrKysrLS0tLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDkgaW5z ZXJ0aW9ucygrKSwgNSBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUv ZHJtL2RybV9pcnEuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1faXJxLmMKPiBpbmRleCBhMTY0Y2Y1 MWQwOTMuLjI1MzUwNWRhNTdiZCAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vZHJtX2ly cS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2RybV9pcnEuYwo+IEBAIC0xNDkyLDYgKzE0OTIs MTEgQEAgaW50IGRybV9sZWdhY3lfbW9kZXNldF9jdGwoc3RydWN0IGRybV9kZXZpY2UgKmRldiwg dm9pZCAqZGF0YSwKPiAgCXJldHVybiAwOwo+ICB9Cj4gIAo+ICtzdGF0aWMgaW5saW5lIGJvb2wg dmJsYW5rX3Bhc3NlZCh1MzIgc2VxLCB1MzIgcmVmKQo+ICt7Cj4gKwlyZXR1cm4gKHNlcSAtIHJl ZikgPD0gKDEgPDwgMjMpOwo+ICt9CgpBcyBhIGZvbGxvd3VwLCBtYXliZSB3ZSBjb3VsZCB0cnkg Y2hhbmdpbmcgdGhpcyB0bwoKICAgIHJldHVybiAoczMyKShzZXEgLSByZWYpID49IDA7CgoKPiBA QCAtMTU0Miw3ICsxNTQ3LDcgQEAgc3RhdGljIGludCBkcm1fcXVldWVfdmJsYW5rX2V2ZW50KHN0 cnVjdCBkcm1fZGV2aWNlICpkZXYsIHVuc2lnbmVkIGludCBwaXBlLAo+ICAJCQkJICAgICAgdmJs d2FpdC0+cmVxdWVzdC5zZXF1ZW5jZSk7Cj4gIAo+ICAJZS0+ZXZlbnQuc2VxdWVuY2UgPSB2Ymx3 YWl0LT5yZXF1ZXN0LnNlcXVlbmNlOwo+IC0JaWYgKChzZXEgLSB2Ymx3YWl0LT5yZXF1ZXN0LnNl cXVlbmNlKSA8PSAoMSA8PCAyMykpIHsKPiArCWlmICh2YmxhbmtfcGFzc2VkKHNlcSwgdmJsd2Fp dC0+cmVxdWVzdC5zZXF1ZW5jZSkpIHsKPiAgCQlkcm1fdmJsYW5rX3B1dChkZXYsIHBpcGUpOwo+ ICAJCXNlbmRfdmJsYW5rX2V2ZW50KGRldiwgZSwgc2VxLCAmbm93KTsKPiAgCQl2Ymx3YWl0LT5y ZXBseS5zZXF1ZW5jZSA9IHNlcTsKPiBAQCAtMTYzMiw5ICsxNjM3LDggQEAgaW50IGRybV93YWl0 X3ZibGFuayhzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LCB2b2lkICpkYXRhLAo+ICAJfQo+ICAKPiAg CWlmICgoZmxhZ3MgJiBfRFJNX1ZCTEFOS19ORVhUT05NSVNTKSAmJgo+IC0JICAgIChzZXEgLSB2 Ymx3YWl0LT5yZXF1ZXN0LnNlcXVlbmNlKSA8PSAoMSA8PCAyMykpIHsKPiArCSAgICB2Ymxhbmtf cGFzc2VkKHNlcSwgdmJsd2FpdC0+cmVxdWVzdC5zZXF1ZW5jZSkpCj4gIAkJdmJsd2FpdC0+cmVx dWVzdC5zZXF1ZW5jZSA9IHNlcSArIDE7Cj4gLQl9Cj4gIAo+ICAJaWYgKGZsYWdzICYgX0RSTV9W QkxBTktfRVZFTlQpIHsKPiAgCQkvKiBtdXN0IGhvbGQgb24gdG8gdGhlIHZibGFuayByZWYgdW50 aWwgdGhlIGV2ZW50IGZpcmVzCj4gQEAgLTE2NDcsOCArMTY1MSw4IEBAIGludCBkcm1fd2FpdF92 Ymxhbmsoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgdm9pZCAqZGF0YSwKPiAgCQlEUk1fREVCVUco IndhaXRpbmcgb24gdmJsYW5rIGNvdW50ICV1LCBjcnRjICV1XG4iLAo+ICAJCQkgIHZibHdhaXQt PnJlcXVlc3Quc2VxdWVuY2UsIHBpcGUpOwo+ICAJCURSTV9XQUlUX09OKHJldCwgdmJsYW5rLT5x dWV1ZSwgMyAqIEhaLAo+IC0JCQkgICAgKGRybV92YmxhbmtfY291bnQoZGV2LCBwaXBlKSAtCj4g LQkJCSAgICAgdmJsd2FpdC0+cmVxdWVzdC5zZXF1ZW5jZSkgPD0gKDEgPDwgMjMpIHx8Cj4gKwkJ CSAgICB2YmxhbmtfcGFzc2VkKGRybV92YmxhbmtfY291bnQoZGV2LCBwaXBlKSwKPiArCQkJCQkg IHZibHdhaXQtPnJlcXVlc3Quc2VxdWVuY2UpIHx8Cj4gIAkJCSAgICAhUkVBRF9PTkNFKHZibGFu ay0+ZW5hYmxlZCkpOwo+ICAJfQo+ICAKPiAKClRoZXJlJ3MgYW5vdGhlciBpbnN0YW5jZSBpbiBk cm1faGFuZGxlX3ZibGFua19ldmVudHMuCgoKLS0gCkVhcnRobGluZyBNaWNoZWwgRMOkbnplciAg ICAgICAgICAgICAgIHwgICAgICAgICAgICAgICBodHRwOi8vd3d3LmFtZC5jb20KTGlicmUgc29m dHdhcmUgZW50aHVzaWFzdCAgICAgICAgICAgICB8ICAgICAgICAgICAgIE1lc2EgYW5kIFggZGV2 ZWxvcGVyCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRy aS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRw czovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=