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Commit b00ddb27 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Assert that created vma has a whole number of pages 



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: default avatarChris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: default avatarMika Kuoppala <mika.kuoppala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170119192659.31789-6-chris@chris-wilson.co.uk


Reviewed-by: default avatarJoonas Lahtinen <joonas.lahtinen@linux.intel.com>
parent 44a0ec0d

drivers/gpu/drm/i915/i915_vma.c

+2 −0
Original line number Diff line number Diff line
@@ -110,6 +110,8 @@ vma_create(struct drm_i915_gem_object *obj, 
	if (unlikely(vma->size > vm->total))

		goto err_vma;



	GEM_BUG_ON(!IS_ALIGNED(vma->size, I915_GTT_PAGE_SIZE));



	if (i915_is_ggtt(vm)) {

		if (unlikely(overflows_type(vma->size, u32)))

			goto err_vma;