We rely on the VMA being allocated inside the drm_mm and for its allotted
node being large enough to accommodate all the vma->pages.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.william.a...@gmail.com>
Reviewed-by: Matthew Auld <matthew.william.a...@gmail.com>
---
drivers/gpu/drm/i915/i915_vma.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index c1abfe7b48ea..6e9eade304b8 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -241,7 +241,15 @@ int i915_vma_bind(struct i915_vma *vma, enum
i915_cache_level cache_level,
u32 vma_flags;
int ret;
- if (WARN_ON(flags == 0))
+ GEM_BUG_ON(!drm_mm_node_allocated(&vma->node));
+ GEM_BUG_ON(vma->size > vma->node.size);
+
+ if (GEM_WARN_ON(range_overflows(vma->node.start,
+ vma->node.size,
+ vma->vm->total)))
+ return -ENODEV;
+
+ if (GEM_WARN_ON(!flags))
return -EINVAL;
bind_flags = 0;
@@ -258,11 +266,6 @@ int i915_vma_bind(struct i915_vma *vma, enum
i915_cache_level cache_level,
if (bind_flags == 0)
return 0;
- if (GEM_WARN_ON(range_overflows(vma->node.start,
- vma->node.size,
- vma->vm->total)))
- return -ENODEV;
-
trace_i915_vma_bind(vma, bind_flags);
ret = vma->vm->bind_vma(vma, cache_level, bind_flags);
if (ret)
--
2.11.0
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