drm/i915: Wake up waiters after setting the WEDGED bit

After setting the WEDGED bit, make sure that we do wake up waiters as
they may not be waiting for a request completion yet, just for its
execution.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170721123238.16428-9-chris@chris-wilson.co.uk
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 8da1489..a01176d 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3094,10 +3094,12 @@ static int __i915_gem_set_wedged_BKL(void *data)
        struct intel_engine_cs *engine;
        enum intel_engine_id id;
 
-       set_bit(I915_WEDGED, &i915->gpu_error.flags);
        for_each_engine(engine, i915, id)
                engine_set_wedged(engine);
 
+       set_bit(I915_WEDGED, &i915->gpu_error.flags);
+       wake_up_all(&i915->gpu_error.reset_queue);
+
        return 0;
 }