On Wed, Mar 15, 2017 at 11:06:32PM +0200, Ville Syrjälä wrote:
> > @@ -1608,6 +1619,21 @@ int drm_wait_vblank(struct drm_device *dev, void
> > *data,
> >
> > vblank = &dev->vblank[pipe];
> >
> > + /* If the counter is currently enabled and accurate, short-circuit
> > queries
> > +*
On Wed, Mar 15, 2017 at 08:40:27PM +, Chris Wilson wrote:
> Bypass all the spinlocks and return the last timestamp and counter from
> the last vblank if the driver delcares that it is accurate (and stable
> across on/off), and the vblank is currently enabled.
>
> This is dependent upon the bot
Bypass all the spinlocks and return the last timestamp and counter from
the last vblank if the driver delcares that it is accurate (and stable
across on/off), and the vblank is currently enabled.
This is dependent upon the both the hardware and driver to provide the
proper barriers to facilitate r
Bypass all the spinlocks and return the last timestamp and counter from
the last vblank if the driver delcares that it is accurate (and stable
across on/off), and the vblank is currently enabled.
This is dependent upon the both the hardware and driver to provide the
proper barriers to facilitate r
