drm/i915/selftests: Add a mock i915_vma to the mock_ring

Add a i915_vma to the mock_engine/mock_ring so that the core code can
always assume the presence of ring->vma.

Fixes: 8ccfc20a7d56 ("drm/i915/gt: Mark ring->vma as active while pinned")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200114160030.2468927-1-chris@chris-wilson.co.uk
(cherry picked from commit b63b4feaef7363d2cf46dd76bb6e87e060b2b0de)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/gt/mock_engine.c b/drivers/gpu/drm/i915/gt/mock_engine.c
index a560b7e..f280638 100644 (file)
--- a/drivers/gpu/drm/i915/gt/mock_engine.c
+++ b/drivers/gpu/drm/i915/gt/mock_engine.c
@@ -59,11 +59,26 @@ static struct intel_ring *mock_ring(struct intel_engine_cs *engine)
        ring->vaddr = (void *)(ring + 1);
        atomic_set(&ring->pin_count, 1);
 
+       ring->vma = i915_vma_alloc();
+       if (!ring->vma) {
+               kfree(ring);
+               return NULL;
+       }
+       i915_active_init(&ring->vma->active, NULL, NULL);
+
        intel_ring_update_space(ring);
 
        return ring;
 }
 
+static void mock_ring_free(struct intel_ring *ring)
+{
+       i915_active_fini(&ring->vma->active);
+       i915_vma_free(ring->vma);
+
+       kfree(ring);
+}
+
 static struct i915_request *first_request(struct mock_engine *engine)
 {
        return list_first_entry_or_null(&engine->hw_queue,
@@ -121,7 +136,7 @@ static void mock_context_destroy(struct kref *ref)
        GEM_BUG_ON(intel_context_is_pinned(ce));
 
        if (test_bit(CONTEXT_ALLOC_BIT, &ce->flags)) {
-               kfree(ce->ring);
+               mock_ring_free(ce->ring);
                mock_timeline_unpin(ce->timeline);
        }