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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-19 22:26:59 +0300 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2017-01-21 13:32:32 +0300 |
| commit | b00ddb27324eee53cbed8be7fc00dc572727bb0e (patch) | |
| tree | b25895d2854daf735dcb9221d78174fda15ed662 /drivers/gpu | |
| parent | 44a0ec0d3bd5ebbe2233b48cc53b5c79b66277b7 (diff) | |
| download | linux-b00ddb27324eee53cbed8be7fc00dc572727bb0e.tar.xz | |
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: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170119192659.31789-6-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_vma.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index ecb495b1c5d3..559966dc3d35 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -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; |