When creating a partial VMA assert that it first fits with the parent
object, and that if it covers the whole of the parent a normal view was
created instead.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_vma.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
index cfec4222b04e..3229f37eabea 100644
--- a/drivers/gpu/drm/i915/i915_vma.c
+++ b/drivers/gpu/drm/i915/i915_vma.c
@@ -95,8 +95,13 @@ __i915_vma_create(struct drm_i915_gem_object *obj,
if (view) {
vma->ggtt_view = *view;
if (view->type == I915_GGTT_VIEW_PARTIAL) {
+ GEM_BUG_ON(range_overflows_t(u64,
+
view->params.partial.offset,
+ view->params.partial.size,
+ obj->base.size >>
PAGE_SHIFT));
vma->size = view->params.partial.size;
vma->size <<= PAGE_SHIFT;
+ GEM_BUG_ON(vma->size >= obj->base.size);
} else if (view->type == I915_GGTT_VIEW_ROTATED) {
vma->size =
intel_rotation_info_size(&view->params.rotated);
--
2.11.0
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
