[Intel-gfx] [PATCH igt 7/7] lib: Ask the kernel to quiescent the GPU

[Joonas Lahtinen]

On Fri, 2017-09-29 at 16:26 +0100, Chris Wilson wrote:
> Since the introduction of debugfs/i915_drop_caches, we have offered the
> ability to wait upon all outstanding batches. This is more efficient and
> less error prone (one example is the use of context priorities, we have
> to idle at the lowest in order not to jump over any low priority tasks
> we want to wait upon) than trying to do it all in userspace. Though we
> could if we wanted to, it's just easier to use the existing facility
> designed for the purpose -- that we were already partially using!
> 
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

Reviewed-by: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>

Regards, Joonas
-- 
Joonas Lahtinen
Open Source Technology Center
Intel Corporation