[Intel-gfx] [PATCH 06/16] drm/i915/error: Check the potential ctx obj's vm

[Ben Widawsky]

The bound list is global (all objects which back the VMAs are stored
here). Recently the BUG() in the offset lookup was demoted to a WARN,
but the fault actually lies in the caller, here.

This bug has existed since the initial introduction of PPGTT (however,
it was fixed in unmerged patches to fix up the error state).

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 drivers/gpu/drm/i915/i915_gpu_error.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index 66cf417..550ba38 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -871,6 +871,9 @@ static void i915_gem_record_active_context(struct intel_engine_cs *ring,
 		return;
 
 	list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) {
+		if (!i915_gem_obj_ggtt_bound(obj))
+			continue;
+
 		if ((error->ccid & PAGE_MASK) == i915_gem_obj_ggtt_offset(obj)) {
 			ering->ctx = i915_error_ggtt_object_create(dev_priv, obj);
 			break;
-- 
2.0.1