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authorSinclair Yeh <syeh@vmware.com>2016-06-29 12:58:49 -0700
committerSinclair Yeh <syeh@vmware.com>2016-07-01 10:47:49 -0700
commit94477bff390aa4612d2332c8abafaae0a13d6923 (patch)
treec80653a097332502fc4cab07b88aee4142b5d6c2 /include/drm
parent04319d89fbec72dfd60738003c3813b97c1d5f5a (diff)
downloadlinux-stericsson-94477bff390aa4612d2332c8abafaae0a13d6923.tar.gz
drm/ttm: Make ttm_bo_mem_compat available
There are cases where it is desired to see if a proposed placement is compatible with a buffer object before calling ttm_bo_validate(). Signed-off-by: Sinclair Yeh <syeh@vmware.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Cc: <stable@vger.kernel.org> --- This is the first of a 3-patch series to fix a black screen issue observed on Ubuntu 16.04 server.
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 c801d9028e37..4cecb0b75b9c 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -316,6 +316,20 @@ ttm_bo_reference(struct ttm_buffer_object *bo)
*/
extern int ttm_bo_wait(struct ttm_buffer_object *bo,
bool interruptible, bool no_wait);
+
+/**
+ * ttm_bo_mem_compat - Check if proposed placement is compatible with a bo
+ *
+ * @placement: Return immediately if buffer is busy.
+ * @mem: The struct ttm_mem_reg indicating the region where the bo resides
+ * @new_flags: Describes compatible placement found
+ *
+ * Returns true if the placement is compatible
+ */
+extern bool ttm_bo_mem_compat(struct ttm_placement *placement,
+ struct ttm_mem_reg *mem,
+ uint32_t *new_flags);
+
/**
* ttm_bo_validate
*