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/ttm/ttm_device.h> |
8 | #include <drm/drm_mm.h> |
9 | |
10 | /** |
11 | * struct ttm_range_mgr_node |
12 | * |
13 | * @base: base clase we extend |
14 | * @mm_nodes: MM nodes, usually 1 |
15 | * |
16 | * Extending the ttm_resource object to manage an address space allocation with |
17 | * one or more drm_mm_nodes. |
18 | */ |
19 | struct ttm_range_mgr_node { |
20 | struct ttm_resource base; |
21 | struct drm_mm_node mm_nodes[]; |
22 | }; |
23 | |
24 | /** |
25 | * to_ttm_range_mgr_node |
26 | * |
27 | * @res: the resource to upcast |
28 | * |
29 | * Upcast the ttm_resource object into a ttm_range_mgr_node object. |
30 | */ |
31 | static inline struct ttm_range_mgr_node * |
32 | to_ttm_range_mgr_node(struct ttm_resource *res) |
33 | { |
34 | return container_of(res, struct ttm_range_mgr_node, base); |
35 | } |
36 | |
37 | int ttm_range_man_init_nocheck(struct ttm_device *bdev, |
38 | unsigned type, bool use_tt, |
39 | unsigned long p_size); |
40 | int ttm_range_man_fini_nocheck(struct ttm_device *bdev, |
41 | unsigned type); |
42 | static __always_inline int ttm_range_man_init(struct ttm_device *bdev, |
43 | unsigned int type, bool use_tt, |
44 | unsigned long p_size) |
45 | { |
46 | BUILD_BUG_ON(__builtin_constant_p(type) && type >= TTM_NUM_MEM_TYPES); |
47 | return ttm_range_man_init_nocheck(bdev, type, use_tt, p_size); |
48 | } |
49 | |
50 | static __always_inline int ttm_range_man_fini(struct ttm_device *bdev, |
51 | unsigned int type) |
52 | { |
53 | BUILD_BUG_ON(__builtin_constant_p(type) && type >= TTM_NUM_MEM_TYPES); |
54 | return ttm_range_man_fini_nocheck(bdev, type); |
55 | } |
56 | #endif |
57 | |