[37/49] drm/ttm: allow drivers to provide their own manager subclasses

Commit Message

Dave Airlie July 31, 2020, 4:05 a.m. UTC

From: Dave Airlie <[e-mail]>

This will get removed eventually and all drivers will use this.

Signed-off-by: Dave Airlie <[e-mail]>
---
 include/drm/ttm/ttm_bo_driver.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

Patch

diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 419b088253cf..723171fd94da 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -419,7 +419,7 @@  struct ttm_bo_device {
 	 * access via ttm_manager_type.
 	 */
 	struct ttm_mem_type_manager man_priv[TTM_NUM_MEM_TYPES];
-
+	struct ttm_mem_type_manager *man_drv[TTM_NUM_MEM_TYPES];
 	/*
 	 * Protected by internal locks.
 	 */
@@ -450,9 +450,18 @@  struct ttm_bo_device {
 static inline struct ttm_mem_type_manager *ttm_manager_type(struct ttm_bo_device *bdev,
 							    int mem_type)
 {
+	if (bdev->man_drv[mem_type])
+		return bdev->man_drv[mem_type];
 	return &bdev->man_priv[mem_type];
 }
 
+static inline void ttm_set_driver_manager(struct ttm_bo_device *bdev,
+					  int type,
+					  struct ttm_mem_type_manager *manager)
+{
+	bdev->man_drv[type] = manager;
+}
+
 /**
  * struct ttm_lru_bulk_move_pos
  *