[PATCH v10 4/4] drm/i915: Use device wedged event

[Raag Jadav]

Now that we have device wedged event provided by DRM core, make use
of it and support both driver rebind and bus-reset based recovery.
With this in place, userspace will be notified of wedged device on
gt reset failure.

Signed-off-by: Raag Jadav <raag.ja...@intel.com>
Reviewed-by: Aravind Iddamsetty <aravind.iddamse...@linux.intel.com>
---
 drivers/gpu/drm/i915/gt/intel_reset.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c 
b/drivers/gpu/drm/i915/gt/intel_reset.c
index f42f21632306..18cf50a1e84d 100644
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -1418,6 +1418,9 @@ static void intel_gt_reset_global(struct intel_gt *gt,
 
        if (!test_bit(I915_WEDGED, &gt->reset.flags))
                kobject_uevent_env(kobj, KOBJ_CHANGE, reset_done_event);
+       else
+               drm_dev_wedged_event(&gt->i915->drm,
+                                    DRM_WEDGE_RECOVERY_REBIND | 
DRM_WEDGE_RECOVERY_BUS_RESET);
 }
 
 /**
-- 
2.34.1