Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> VMA (and their objects) are supposed to composed of whole pages. Add an
> assert to catch any invalid construct when we create the VMA.
>
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_vma.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c
> index 68e66ffb95e8..57243bc68b86 100644
> --- a/drivers/gpu/drm/i915/i915_vma.c
> +++ b/drivers/gpu/drm/i915/i915_vma.c
> @@ -108,6 +108,7 @@ vma_create(struct drm_i915_gem_object *obj,
> }
>
> GEM_BUG_ON(vma->size > vm->total);
> + GEM_BUG_ON(!IS_ALIGNED(vma->size, I915_GTT_PAGE_SIZE));
>
> if (i915_is_ggtt(vm)) {
> GEM_BUG_ON(overflows_type(vma->size, u32));
> --
> 2.11.0
>
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