LXR linux/include/drm/ttm/ttm_range

   1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
   2
   3#ifndef _TTM_RANGE_MANAGER_H_
   4#define _TTM_RANGE_MANAGER_H_
   5
   6#include <drm/ttm/ttm_resource.h>
   7#include <drm/drm_mm.h>
   8
   9/**
  10 * struct ttm_range_mgr_node
  11 *
  12 * @base: base clase we extend
  13 * @mm_nodes: MM nodes, usually 1
  14 *
  15 * Extending the ttm_resource object to manage an address space allocation with
  16 * one or more drm_mm_nodes.
  17 */
  18struct ttm_range_mgr_node {
  19        struct ttm_resource base;
  20        struct drm_mm_node mm_nodes[];
  21};
  22
  23/**
  24 * to_ttm_range_mgr_node
  25 *
  26 * @res: the resource to upcast
  27 *
  28 * Upcast the ttm_resource object into a ttm_range_mgr_node object.
  29 */
  30static inline struct ttm_range_mgr_node *
  31to_ttm_range_mgr_node(struct ttm_resource *res)
  32{
  33        return container_of(res, struct ttm_range_mgr_node, base);
  34}
  35
  36int ttm_range_man_init(struct ttm_device *bdev,
  37                       unsigned type, bool use_tt,
  38                       unsigned long p_size);
  39int ttm_range_man_fini(struct ttm_device *bdev,
  40                       unsigned type);
  41
  42#endif
  43