[Intel-gfx] [PATCH 1/2] drm/i915: Balance context pinning on reset cleanup

[Mika Kuoppala]

We pin when we submit to execlist queue. Balance
the pinning when the submitted queue is cleaned on reset.

Cc: Dave Gordon <david.s.gordon at intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c  | 4 ++++
 drivers/gpu/drm/i915/intel_lrc.c | 1 +
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 6c40365..68ea67d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2657,6 +2657,10 @@ static void i915_gem_reset_ring_cleanup(struct drm_i915_private *dev_priv,
 				execlist_link);
 		list_del(&submit_req->execlist_link);
 		intel_runtime_pm_put(dev_priv);
+
+		if (submit_req->ctx != ring->default_context)
+			intel_lr_context_unpin(ring, submit_req->ctx);
+
 		i915_gem_context_unreference(submit_req->ctx);
 		kfree(submit_req);
 	}
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 7670a0f..56a3625 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1774,6 +1774,7 @@ void intel_lr_context_free(struct intel_context *ctx)
 				intel_unpin_ringbuffer_obj(ringbuf);
 				i915_gem_object_ggtt_unpin(ctx_obj);
 			}
+			WARN_ON(ctx->engine[ring->id].unpin_count);
 			intel_destroy_ringbuffer_obj(ringbuf);
 			kfree(ringbuf);
 			drm_gem_object_unreference(&ctx_obj->base);
-- 
1.9.1