[PATCH 13/18] staging/vboxvideo: Replace TTM initialization/release with ttm_global

[Thomas Zimmermann]

Unified initialization and release of the global TTM state is provided
by struct ttm_global and its interfaces.

Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
---
 drivers/staging/vboxvideo/vbox_drv.h |  4 +--
 drivers/staging/vboxvideo/vbox_ttm.c | 42 +++-------------------------
 2 files changed, 6 insertions(+), 40 deletions(-)

diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h
index 594f84272957..21cca25d00f5 100644
--- a/drivers/staging/vboxvideo/vbox_drv.h
+++ b/drivers/staging/vboxvideo/vbox_drv.h
@@ -45,6 +45,7 @@
 #include <drm/ttm/ttm_placement.h>
 #include <drm/ttm/ttm_memory.h>
 #include <drm/ttm/ttm_module.h>
+#include <drm/ttm/ttm_global.h>
 
 #include "vboxvideo_guest.h"
 #include "vboxvideo_vbe.h"
@@ -95,8 +96,7 @@ struct vbox_private {
 	int fb_mtrr;
 
 	struct {
-		struct drm_global_reference mem_global_ref;
-		struct ttm_bo_global_ref bo_global_ref;
+		struct ttm_global glob;
 		struct ttm_bo_device bdev;
 	} ttm;
 
diff --git a/drivers/staging/vboxvideo/vbox_ttm.c b/drivers/staging/vboxvideo/vbox_ttm.c
index 2329a55d4636..4c2c75daf94c 100644
--- a/drivers/staging/vboxvideo/vbox_ttm.c
+++ b/drivers/staging/vboxvideo/vbox_ttm.c
@@ -35,49 +35,16 @@ static inline struct vbox_private *vbox_bdev(struct ttm_bo_device *bd)
 	return container_of(bd, struct vbox_private, ttm.bdev);
 }
 
-static int vbox_ttm_mem_global_init(struct drm_global_reference *ref)
-{
-	return ttm_mem_global_init(ref->object);
-}
-
-static void vbox_ttm_mem_global_release(struct drm_global_reference *ref)
-{
-	ttm_mem_global_release(ref->object);
-}
-
 /**
  * Adds the vbox memory manager object/structures to the global memory manager.
  */
 static int vbox_ttm_global_init(struct vbox_private *vbox)
 {
-	struct drm_global_reference *global_ref;
-	int ret;
-
-	global_ref = &vbox->ttm.mem_global_ref;
-	global_ref->global_type = DRM_GLOBAL_TTM_MEM;
-	global_ref->size = sizeof(struct ttm_mem_global);
-	global_ref->init = &vbox_ttm_mem_global_init;
-	global_ref->release = &vbox_ttm_mem_global_release;
-	ret = drm_global_item_ref(global_ref);
+	int ret = ttm_global_init(&vbox->ttm.glob);
 	if (ret) {
-		DRM_ERROR("Failed setting up TTM memory subsystem.\n");
+		DRM_ERROR("Failed setting up TTM subsystem.\n");
 		return ret;
 	}
-
-	vbox->ttm.bo_global_ref.mem_glob = vbox->ttm.mem_global_ref.object;
-	global_ref = &vbox->ttm.bo_global_ref.ref;
-	global_ref->global_type = DRM_GLOBAL_TTM_BO;
-	global_ref->size = sizeof(struct ttm_bo_global);
-	global_ref->init = &ttm_bo_global_ref_init;
-	global_ref->release = &ttm_bo_global_ref_release;
-
-	ret = drm_global_item_ref(global_ref);
-	if (ret) {
-		DRM_ERROR("Failed setting up TTM BO subsystem.\n");
-		drm_global_item_unref(&vbox->ttm.mem_global_ref);
-		return ret;
-	}
-
 	return 0;
 }
 
@@ -86,8 +53,7 @@ static int vbox_ttm_global_init(struct vbox_private *vbox)
  */
 static void vbox_ttm_global_release(struct vbox_private *vbox)
 {
-	drm_global_item_unref(&vbox->ttm.bo_global_ref.ref);
-	drm_global_item_unref(&vbox->ttm.mem_global_ref);
+	ttm_global_release(&vbox->ttm.glob);
 }
 
 static void vbox_bo_ttm_destroy(struct ttm_buffer_object *tbo)
@@ -232,7 +198,7 @@ int vbox_mm_init(struct vbox_private *vbox)
 		return ret;
 
 	ret = ttm_bo_device_init(&vbox->ttm.bdev,
-				 vbox->ttm.bo_global_ref.ref.object,
+				 vbox->ttm.glob.bo_ref.object,
 				 &vbox_bo_driver,
 				 dev->anon_inode->i_mapping,
 				 DRM_FILE_PAGE_OFFSET, true);
-- 
2.19.1