[Intel-gfx] [PATCH] drm/i915: Clear vma->bound on unbinding

[Mika Kuoppala]

Unbinding doesn't always lead to unconditional destruction
of vma. This destruction avoidance happens if vma is part of
execbuffer relocation list or if vma is being considered for
eviction in i915_gem_evict_something().

For those other users, mark the vma unbound so that
the correct state of this vma is preserved.

Reported-by: Chris Wilson <chris at chris-wilson.co.ok>
Cc: Chris Wilson <chris at chris-wilson.co.ok>
Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Signed-off-by: Mika Kuoppala <mika.kuoppala at intel.com>
---
 drivers/gpu/drm/i915/i915_gem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e8f6f4c..c378f04 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3069,6 +3069,7 @@ int i915_vma_unbind(struct i915_vma *vma)
 	trace_i915_vma_unbind(vma);
 
 	vma->vm->unbind_vma(vma);
+	vma->bound = 0;
 
 	list_del_init(&vma->mm_list);
 	if (i915_is_ggtt(vma->vm)) {
-- 
1.9.1