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authorMaarten Lankhorst <maarten.lankhorst@canonical.com>2012-10-12 16:58:36 +0200
committerDave Airlie <airlied@redhat.com>2012-11-07 10:44:38 +1000
commita9dbfff1cbe5972ae0ef07b51530a70240ec9f2c (patch)
tree641bf7ee8df65357cce60a12a9cebba797f3ba8d /include/drm
parentc4a56750ecbf2421ebd39f0fec562e1869a38d53 (diff)
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drm/ttm: add ttm_bo_is_reserved
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/drm')
-rw-r--r--include/drm/ttm/ttm_bo_api.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index e8028ade567..36e8408e00f 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -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