From mboxrd@z Thu Jan 1 00:00:00 1970 From: John Keeping Subject: Re: [PATCH 3/3] drm/rockchip: explain why we can't wait_for_vblanks Date: Thu, 14 Jan 2016 16:26:19 +0000 Message-ID: <20160114162619.233ab39c.john@metanate.com> References: <20160114142047.GD19130@phenom.ffwll.local> <107bbc36a316ed0ddc7b5a8bcd9b6db6cbc71d4f.1452782114.git.john@metanate.com> <20160114145705.GA24005@ulmo> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20160114145705.GA24005@ulmo> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: Thierry Reding Cc: "linux-arm-kernel@lists.infradead.org" , "open list:ARM/Rockchip SoC..." , Linux Kernel Mailing List , dri-devel List-Id: linux-rockchip.vger.kernel.org T24gVGh1LCAxNCBKYW4gMjAxNiAxNTo1NzowNSArMDEwMCwgVGhpZXJyeSBSZWRpbmcgd3JvdGU6 Cgo+IE9uIFRodSwgSmFuIDE0LCAyMDE2IGF0IDAyOjM5OjQyUE0gKzAwMDAsIEpvaG4gS2VlcGlu ZyB3cm90ZToKPiA+IFNpZ25lZC1vZmYtYnk6IEpvaG4gS2VlcGluZyA8am9obkBtZXRhbmF0ZS5j b20+Cj4gPiAtLS0KPiA+ICBkcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAvcm9ja2NoaXBfZHJtX2Zi LmMgfCA2ICsrKysrKwo+ID4gIDEgZmlsZSBjaGFuZ2VkLCA2IGluc2VydGlvbnMoKykKPiA+IAo+ ID4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9yb2NrY2hpcF9kcm1fZmIu YyBiL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hpcC9yb2NrY2hpcF9kcm1fZmIuYwo+ID4gaW5kZXgg Njc5ZDIzYS4uYjI2N2NlNCAxMDA2NDQKPiA+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9yb2NrY2hp cC9yb2NrY2hpcF9kcm1fZmIuYwo+ID4gKysrIGIvZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL3Jv Y2tjaGlwX2RybV9mYi5jCj4gPiBAQCAtMTc3LDYgKzE3NywxMiBAQCBzdGF0aWMgdm9pZCByb2Nr Y2hpcF9jcnRjX3dhaXRfZm9yX3VwZGF0ZShzdHJ1Y3QgZHJtX2NydGMgKmNydGMpCj4gPiAgCQlj cnRjX2Z1bmNzLT53YWl0X2Zvcl91cGRhdGUoY3J0Yyk7Cj4gPiAgfQo+ID4gIAo+ID4gKy8qCj4g PiArICogV2UgY2FuJ3QgdXNlIGRybV9hdG9taWNfaGVscGVyX3dhaXRfZm9yX3ZibGFua3MoKSBi ZWNhdXNlIHJrMzI4OCBhbmQgcmszMDY2Cj4gPiArICogaGF2ZSBoYXJkd2FyZSBjb3VudGVycyBm b3IgbmVpdGhlciB2YmxhbmtzIG5vciBzY2FubGluZXMuICBUaGlzIGZ1bmN0aW9uIGlzCj4gPiAr ICogZXF1aXZhbGVudCBidXQgdXNlcyByb2NrY2hpcF9jcnRjX3dhaXRfZm9yX3VwZGF0ZSgpIGlu c3RlYWQgb2Ygd2FpdGluZyBmb3IKPiA+ICsgKiB2YmxhbmtfY291bnQgdG8gY2hhbmdlLgo+ID4g KyAqLyAgCj4gCj4gVGhpcyBpcyBraW5kIG9mIG1pc2xlYWRpbmcuIEZyb20gcmVhZGluZyBlYXJs aWVyIHBhcnRzIG9mIHRoZSB0aHJlYWQgdGhlCj4gcmVhc29uIHdoeSBkcm1fYXRvbWljX2hlbHBl cl93YWl0X2Zvcl92YmxhbmtzKCkgd29uJ3Qgd29yayBpcyBiZWNhdXNlIGl0Cj4gaGFzIGEgcG90 ZW50aWFsIHJhY2UgY29uZGl0aW9uIHRoYXQgY2FuJ3QgYmUgZGV0ZWN0ZWQgdW5sZXNzIHlvdSBh bHNvCj4gaGF2ZSBhIHZibGFuayBjb3VudGVyLiBIb3dldmVyLCB0aGUgYWJvdmUgY29tbWVudCBt YWtlcyBpdCB3b3JrIGxpa2UKPiBkcm1fYXRvbWljX2hlbHBlcl93YWl0X2Zvcl92YmxhbmtzKCkg ZG9lc24ndCB3b3JrIGluIHRoZSBhYnNlbmNlIG9mIGEKPiB2YmxhbmsgY291bnRlciwgd2hpY2gg aXNuJ3QgcXVpdGUgdHJ1ZS4KCkhvdyBhYm91dCBzb21ldGhpbmcgbGlrZSB0aGlzICh1c2luZyB0 aGUgc2VxdWVuY2UgZnJvbSBNYXJrJ3MgbWVzc2FnZSk6CgovKgogKiBXZSBjYW4ndCB1c2UgZHJt X2F0b21pY19oZWxwZXJfd2FpdF9mb3JfdmJsYW5rcygpIGJlY2F1c2UgcmszMjg4IGFuZCByazMw NjYKICogaGF2ZSBoYXJkd2FyZSBjb3VudGVycyBmb3IgbmVpdGhlciB2YmxhbmtzIG5vciBzY2Fu bGluZXMsIHdoaWNoIHJlc3VsdHMgaW4KICogYSByYWNlIHdoZXJlOgogKgkJCQl8IDwtLSBIVyB2 c3luYyBpcnEgYW5kIHJlZyB0YWtlIGVmZmVjdAogKgkgICAgICAgcGxhbmVfY29tbWl0IC0tPiB8 CiAqCWdldF92YmxhbmsgYW5kIHdhaXQgLS0+IHwKICoJCQkJfCA8LS0gaGFuZGxlX3ZibGFuaywg dmJsYW5rLT5jb3VudCArIDEKICoJCSBjbGVhbnVwX2ZiIC0tPiB8CiAqCQlpb21tdSBjcmFzaCAt LT4gfAogKgkJCQl8IDwtLSBIVyB2c3luYyBpcnEgYW5kIHJlZyB0YWtlIGVmZmVjdAogKgogKiBU aGlzIGZ1bmN0aW9uIGlzIGVxdWl2YWxlbnQgYnV0IHVzZXMgcm9ja2NoaXBfY3J0Y193YWl0X2Zv cl91cGRhdGUoKSBpbnN0ZWFkCiAqIG9mIHdhaXRpbmcgZm9yIHZibGFua19jb3VudCB0byBjaGFu Z2UuCiAqLwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpk cmktZGV2ZWwgbWFpbGluZyBsaXN0CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=