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path: root/drivers/gpu/drm/i915/gt/intel_gt_pm.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_gt_pm.c')
-rw-r--r--drivers/gpu/drm/i915/gt/intel_gt_pm.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index 1363e069ec83..aa6cf0152ce7 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -6,6 +6,7 @@
#include "i915_drv.h"
#include "i915_params.h"
+#include "intel_context.h"
#include "intel_engine_pm.h"
#include "intel_gt.h"
#include "intel_gt_pm.h"
@@ -142,8 +143,12 @@ int intel_gt_resume(struct intel_gt *gt)
intel_engine_pm_get(engine);
ce = engine->kernel_context;
- if (ce)
+ if (ce) {
+ GEM_BUG_ON(!intel_context_is_pinned(ce));
+ mutex_acquire(&ce->pin_mutex.dep_map, 0, 0, _THIS_IP_);
ce->ops->reset(ce);
+ mutex_release(&ce->pin_mutex.dep_map, 0, _THIS_IP_);
+ }
engine->serial++; /* kernel context lost */
err = engine->resume(engine);