Re: [PATCH] drm/udl: Make page_flip asynchronous

2017-07-25 Thread Chris Wilson
Quoting Dawid Kurek (2017-07-07 06:48:49) > In page_flip vblank is sent with no delay. Driver does not know when the > actual update is present on the display and has no means for getting > this information from a device. It is practically impossible to say > exactly *when* as there is also i.e. a

RE: [PATCH] drm/udl: Make page_flip asynchronous

2017-07-20 Thread Michal Lukaszek
On Thursday, July 13, 2017 7:11 PM, Daniel Vetter wrote: >>> Can't we roll this driver over to the atomic helpers instead? There >>> you get nonblocking pretty much for free ... I'm not sure extending >>> the old modeset code has all that much benefit really. >> This code certainly has value by i

Re: [PATCH] drm/udl: Make page_flip asynchronous

2017-07-13 Thread Daniel Vetter
On Thu, Jul 13, 2017 at 6:25 PM, Stéphane Marchesin wrote: >> Can't we roll this driver over to the atomic helpers instead? There >> you get nonblocking pretty much for free ... I'm not sure extending >> the old modeset code has all that much benefit really. > > This code certainly has value by it

Re: [PATCH] drm/udl: Make page_flip asynchronous

2017-07-13 Thread Stéphane Marchesin
On Mon, Jul 10, 2017 at 11:58 PM, Daniel Vetter wrote: > On Fri, Jul 7, 2017 at 7:48 AM, Dawid Kurek > wrote: >> In page_flip vblank is sent with no delay. Driver does not know when the >> actual update is present on the display and has no means for getting >> this information from a device. It

Re: [PATCH] drm/udl: Make page_flip asynchronous

2017-07-10 Thread Daniel Vetter
On Fri, Jul 7, 2017 at 7:48 AM, Dawid Kurek wrote: > In page_flip vblank is sent with no delay. Driver does not know when the > actual update is present on the display and has no means for getting > this information from a device. It is practically impossible to say > exactly *when* as there is al

[PATCH] drm/udl: Make page_flip asynchronous

2017-07-06 Thread Dawid Kurek
In page_flip vblank is sent with no delay. Driver does not know when the actual update is present on the display and has no means for getting this information from a device. It is practically impossible to say exactly *when* as there is also i.e. a usb delay. When we are unable to determine when t

[PATCH] drm/udl: Make page_flip asynchronous

2017-06-21 Thread Dawid Kurek
In page_flip vblank is sent with no delay. Driver does not know when the actual update is present on the display and has no means for getting this information from a device. It is practically impossible to say exactly *when* as there is also i.e. a usb delay. When we are unable to determine when t