Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> When we wait up from suspend, the device has been powered down and
> should come back afresh. We should be able to safely remove the wedged
> status from the previous session and start afresh.
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_gem.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index c1520c0d2084..9dc24b915aa7 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -4518,6 +4518,12 @@ static void assert_kernel_context_is_current(struct drm_i915_private *dev_priv)
>
> void i915_gem_sanitize(struct drm_i915_private *i915)
> {
> + if (i915_terminally_wedged(&i915->gpu_error)) {
> + mutex_lock(&i915->drm.struct_mutex);
> + i915_gem_unset_wedged(i915);
> + mutex_unlock(&i915->drm.struct_mutex);
> + }
> +
> /*
> * If we inherit context state from the BIOS or earlier occupants
> * of the GPU, the GPU may be in an inconsistent state when we
> --
> 2.14.1
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