summaryrefslogtreecommitdiffstats
path: root/include/drm/ttm/ttm_bo_api.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/drm/ttm/ttm_bo_api.h')
-rw-r--r--include/drm/ttm/ttm_bo_api.h29
1 files changed, 23 insertions, 6 deletions
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 49d9cdfc58f2..65ef5376de59 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -31,6 +31,7 @@
#ifndef _TTM_BO_API_H_
#define _TTM_BO_API_H_
+#include <drm/drm_gem.h>
#include <drm/drm_hashtab.h>
#include <drm/drm_vma_manager.h>
#include <linux/kref.h>
@@ -127,6 +128,7 @@ struct ttm_tt;
/**
* struct ttm_buffer_object
*
+ * @base: drm_gem_object superclass data.
* @bdev: Pointer to the buffer object device structure.
* @type: The bo type.
* @destroy: Destruction function. If NULL, kfree is used.
@@ -150,7 +152,6 @@ struct ttm_tt;
* @ddestroy: List head for the delayed destroy list.
* @swap: List head for swap LRU list.
* @moving: Fence set when BO is moving
- * @vma_node: Address space manager node.
* @offset: The current GPU offset, which can have different meanings
* depending on the memory type. For SYSTEM type memory, it should be 0.
* @cur_placement: Hint of current placement.
@@ -169,6 +170,8 @@ struct ttm_tt;
*/
struct ttm_buffer_object {
+ struct drm_gem_object base;
+
/**
* Members constant at init.
*/
@@ -215,9 +218,6 @@ struct ttm_buffer_object {
*/
struct dma_fence *moving;
-
- struct drm_vma_offset_node vma_node;
-
unsigned priority;
/**
@@ -230,8 +230,6 @@ struct ttm_buffer_object {
struct sg_table *sg;
- struct reservation_object *resv;
- struct reservation_object ttm_resv;
struct mutex wu_mutex;
};
@@ -768,4 +766,23 @@ int ttm_bo_swapout(struct ttm_bo_global *glob,
struct ttm_operation_ctx *ctx);
void ttm_bo_swapout_all(struct ttm_bo_device *bdev);
int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo);
+
+/**
+ * ttm_bo_uses_embedded_gem_object - check if the given bo uses the
+ * embedded drm_gem_object.
+ *
+ * Most ttm drivers are using gem too, so the embedded
+ * ttm_buffer_object.base will be initialized by the driver (before
+ * calling ttm_bo_init). It is also possible to use ttm without gem
+ * though (vmwgfx does that).
+ *
+ * This helper will figure whenever a given ttm bo is a gem object too
+ * or not.
+ *
+ * @bo: The bo to check.
+ */
+static inline bool ttm_bo_uses_embedded_gem_object(struct ttm_buffer_object *bo)
+{
+ return bo->base.dev != NULL;
+}
#endif