[Intel-gfx] [PATCH] drm: Aggressively disable vblanks

[Andrew Lutomirski]

On Mon, Dec 20, 2010 at 10:47 PM, Keith Packard <keithp at keithp.com> wrote:
> On Mon, 20 Dec 2010 22:34:12 -0500, Andrew Lutomirski <luto at mit.edu> wrote:
>
>> But five seconds is a *long* time, and anything short enough that the
>> interrupt actually gets turned off in normal use risks the same race.
>
> Right, so eliminating any race seems like the basic requirement. Can
> that be done?

I'll give it a shot.

Do you know if there's an existing tool to call drm_wait_vblank from
userspace for testing?  I know approximately nothing about libdrm or
any userspace graphics stuff whatsoever.

--Andy

>
> --
> keith.packard at intel.com
>