drm/ttm: purge old manager init path.

Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200804025632.3868079-24-airlied@gmail.com

drivers/gpu/drm/ttm/ttm_bo.c

@@ -1527,25 +1527,6 @@ void ttm_mem_type_manager_init(struct ttm_bo_device *bdev,
 }
 EXPORT_SYMBOL(ttm_mem_type_manager_init);
 
-int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type,
-		   unsigned long p_size)
-{
-	int ret;
-	struct ttm_mem_type_manager *man;
-
-	BUG_ON(type >= TTM_NUM_MEM_TYPES);
-	ttm_mem_type_manager_init(bdev, &bdev->man[type], p_size);
-
-	if (type != TTM_PL_SYSTEM) {
-		ret = (*man->func->init)(man, p_size);
-		if (ret)
-			return ret;
-	}
-	ttm_mem_type_manager_set_used(man, true);
-	return 0;
-}
-EXPORT_SYMBOL(ttm_bo_init_mm);
-
 static void ttm_bo_global_kobj_release(struct kobject *kobj)
 {
 	struct ttm_bo_global *glob =

drivers/gpu/drm/ttm/ttm_bo_manager.c

@@ -104,11 +104,18 @@ static void ttm_bo_man_put_node(struct ttm_mem_type_manager *man,
 	}
 }
 
-static int ttm_bo_man_init_private(struct ttm_mem_type_manager *man,
+static const struct ttm_mem_type_manager_func ttm_bo_manager_func;
+
+int ttm_range_man_init(struct ttm_bo_device *bdev,
+		       struct ttm_mem_type_manager *man,
 		       unsigned long p_size)
 {
 	struct ttm_range_manager *rman;
 
+	man->func = &ttm_bo_manager_func;
+
+	ttm_mem_type_manager_init(bdev, man, p_size);
+
 	rman = kzalloc(sizeof(*rman), GFP_KERNEL);
 	if (!rman)
 		return -ENOMEM;
@@ -116,21 +123,7 @@ static int ttm_bo_man_init_private(struct ttm_mem_type_manager *man,
 	drm_mm_init(&rman->mm, 0, p_size);
 	spin_lock_init(&rman->lock);
 	man->priv = rman;
-	return 0;
-}
 
-int ttm_range_man_init(struct ttm_bo_device *bdev,
-		       struct ttm_mem_type_manager *man,
-		       unsigned long p_size)
-{
-	int ret;
-
-	man->func = &ttm_bo_manager_func;
-
-	ttm_mem_type_manager_init(bdev, man, p_size);
-	ret = ttm_bo_man_init_private(man, p_size);
-	if (ret)
-		return ret;
 	ttm_mem_type_manager_set_used(man, true);
 	return 0;
 }
@@ -163,11 +156,9 @@ static void ttm_bo_man_debug(struct ttm_mem_type_manager *man,
 	spin_unlock(&rman->lock);
 }
 
-const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
-	.init = ttm_bo_man_init_private,
+static const struct ttm_mem_type_manager_func ttm_bo_manager_func = {
 	.takedown = ttm_bo_man_takedown,
 	.get_node = ttm_bo_man_get_node,
 	.put_node = ttm_bo_man_put_node,
 	.debug = ttm_bo_man_debug
 };
-EXPORT_SYMBOL(ttm_bo_manager_func);

include/drm/ttm/ttm_bo_api.h

@@ -546,24 +546,6 @@ void ttm_mem_type_manager_init(struct ttm_bo_device *bdev,
 			       struct ttm_mem_type_manager *man,
 			       unsigned long p_size);
 
-/**
- * ttm_bo_init_mm
- *
- * @bdev: Pointer to a ttm_bo_device struct.
- * @mem_type: The memory type.
- * @p_size: size managed area in pages.
- *
- * Initialize a manager for a given memory type.
- * Note: if part of driver firstopen, it must be protected from a
- * potentially racing lastclose.
- * Returns:
- * -EINVAL: invalid size or memory type.
- * -ENOMEM: Not enough memory.
- * May also return driver-specified errors.
- */
-int ttm_bo_init_mm(struct ttm_bo_device *bdev, unsigned type,
-		   unsigned long p_size);
-
 /**
  * ttm_bo_clean_mm
  *

include/drm/ttm/ttm_bo_driver.h

@@ -48,19 +48,6 @@
 struct ttm_mem_type_manager;
 
 struct ttm_mem_type_manager_func {
-	/**
-	 * struct ttm_mem_type_manager member init
-	 *
-	 * @man: Pointer to a memory type manager.
-	 * @p_size: Implementation dependent, but typically the size of the
-	 * range to be managed in pages.
-	 *
-	 * Called to initialize a private range manager. The function is
-	 * expected to initialize the man::priv member.
-	 * Returns 0 on success, negative error code on failure.
-	 */
-	int  (*init)(struct ttm_mem_type_manager *man, unsigned long p_size);
-
 	/**
 	 * struct ttm_mem_type_manager member takedown
 	 *
@@ -833,8 +820,6 @@ int ttm_range_man_init(struct ttm_bo_device *bdev,
 		       struct ttm_mem_type_manager *man,
 		       unsigned long p_size);
 
-extern const struct ttm_mem_type_manager_func ttm_bo_manager_func;
-
 /**
  * ttm_mem_type_manager_debug
  *