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drm/ttm: add ttm_bo_is_reserved

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Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Maarten Lankhorst
2012-10-12 16:58:36 +02:00
committed by Dave Airlie
parent c4a56750ec
commit a9dbfff1cb
2 changed files with 20 additions and 6 deletions
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14
include/drm/ttm/ttm_bo_api.h
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@@ -736,4 +736,18 @@ extern ssize_t ttm_bo_io(struct ttm_bo_device *bdev, struct file *filp,
extern void ttm_bo_swapout_all(struct ttm_bo_device *bdev);
/**
* ttm_bo_is_reserved - return an indication if a ttm buffer object is reserved
*
* @bo: The buffer object to check.
*
* This function returns an indication if a bo is reserved or not, and should
* only be used to print an error when it is not from incorrect api usage, since
* there's no guarantee that it is the caller that is holding the reservation.
*/
static inline bool ttm_bo_is_reserved(struct ttm_buffer_object *bo)
{
return atomic_read(&bo->reserved);
}
#endif