[Intel-gfx] [PATCH 1/8] drm/i915: Flush GT idle status upon reset

[Chris Wilson]

On Thu, Jul 14, 2016 at 10:53:20AM +0300, Joonas Lahtinen wrote:
> On ke, 2016-07-13 at 09:10 +0100, Chris Wilson wrote:
> > Upon resetting the GPU, we force the engines to be idle by clearing
> > their request lists. However, I neglected to clear the GT active status
> > and so the next request following the reset was not marking the device
> > as busy again. (We had to wait until any outstanding retire worker
> > finally ran and cleared the active status.)
> > 
> > Fixes: 67d97da34917 ("drm/i915: Only start retire worker when idle")
> > Testcase: igt/pm_rps/reset
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> > Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> 
> No FDO bug associated?

Unlikely, I had to rewrite the test case to hit it reliably.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre