drm/i915: Use device wedged event

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.jadav@intel.com>
Reviewed-by: Aravind Iddamsetty <aravind.iddamsetty@linux.intel.com>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250204070528.1919158-5-raag.jadav@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c b/drivers/gpu/drm/i915/gt/intel_reset.c
index aae5a081cb534f1cb9e2f812ac216f55cff2b01d..d6dc12fd87c1f0336eb5f89255a29676f4f1b3f3 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_reset.c
+++ b/drivers/gpu/drm/i915/gt/intel_reset.c
@@ -1422,6 +1422,9 @@ 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);
 }
 
 /**