[Intel-gfx] [PATCH] drm/i915: Assert internal objects are page aligned

Chris Wilson chris at chris-wilson.co.uk
Mon Jan 16 14:52:42 UTC 2017


Internal objects must be passed a page-aligned size. Check it.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
---
 drivers/gpu/drm/i915/i915_gem_internal.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_internal.c b/drivers/gpu/drm/i915/i915_gem_internal.c
index 9b39472396ef..17ce53d0d092 100644
--- a/drivers/gpu/drm/i915/i915_gem_internal.c
+++ b/drivers/gpu/drm/i915/i915_gem_internal.c
@@ -156,6 +156,7 @@ i915_gem_object_create_internal(struct drm_i915_private *i915,
 	struct drm_i915_gem_object *obj;
 
 	GEM_BUG_ON(!size);
+	GEM_BUG_ON(!IS_ALIGNED(size, PAGE_SIZE));
 
 	if (overflows_type(size, obj->base.size))
 		return ERR_PTR(-E2BIG);
-- 
2.11.0



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