Quoting Tvrtko Ursulin (2017-12-18 11:11:49)
>
> On 17/12/2017 13:28, Chris Wilson wrote:
> > Inside i915_gem_reset(), we start touching the HW and so require the
> > low-level HW to be re-enabled, in particular the PCI BARs.
> >
> > Fixes: 7b6da818d86f ("drm/i915: Restore the kernel context after a GPU
> > reset on an idle engine")
> > Testcase: igt/drv_hangman # i915g/i915gm
> > Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
> > Cc: Mika Kuoppala <mika.kuopp...@linux.intel.com>
> > Cc: Joonas Lahtinen <joonas.lahti...@linux.intel.com>
> > Cc: Michel Thierry <michel.thie...@intel.com>
> > ---
> > drivers/gpu/drm/i915/i915_drv.c | 6 +++---
> > 1 file changed, 3 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_drv.c
> > b/drivers/gpu/drm/i915/i915_drv.c
> > index 6d39fdf2b604..72bea281edb7 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.c
> > +++ b/drivers/gpu/drm/i915/i915_drv.c
> > @@ -1924,9 +1924,6 @@ void i915_reset(struct drm_i915_private *i915,
> > unsigned int flags)
> > goto taint;
> > }
> >
> > - i915_gem_reset(i915);
> > - intel_overlay_reset(i915);
> > -
> > /* Ok, now get things going again... */
> >
> > /*
> > @@ -1939,6 +1936,9 @@ void i915_reset(struct drm_i915_private *i915,
> > unsigned int flags)
> > goto error;
> > }
> >
> > + i915_gem_reset(i915);
> > + intel_overlay_reset(i915);
> > +
> > /*
> > * Next we need to restore the context, but we don't use those
> > * yet either...
> >
>
> Looks fine to me.
>
> Reviewed-by: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
Ta, pushed this one by itself so we can bring gdg back online.
-Chris
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