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771fe6b9 JG |
1 | /* |
2 | * Copyright 2008 Advanced Micro Devices, Inc. | |
3 | * Copyright 2008 Red Hat Inc. | |
4 | * Copyright 2009 Jerome Glisse. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the "Software"), | |
8 | * to deal in the Software without restriction, including without limitation | |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
10 | * and/or sell copies of the Software, and to permit persons to whom the | |
11 | * Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
22 | * OTHER DEALINGS IN THE SOFTWARE. | |
23 | * | |
24 | * Authors: Dave Airlie | |
25 | * Alex Deucher | |
26 | * Jerome Glisse | |
27 | */ | |
28 | #ifndef __RADEON_OBJECT_H__ | |
29 | #define __RADEON_OBJECT_H__ | |
30 | ||
4c788679 JG |
31 | #include <drm/radeon_drm.h> |
32 | #include "radeon.h" | |
771fe6b9 | 33 | |
4c788679 JG |
34 | /** |
35 | * radeon_mem_type_to_domain - return domain corresponding to mem_type | |
36 | * @mem_type: ttm memory type | |
37 | * | |
38 | * Returns corresponding domain of the ttm mem_type | |
39 | */ | |
40 | static inline unsigned radeon_mem_type_to_domain(u32 mem_type) | |
41 | { | |
42 | switch (mem_type) { | |
43 | case TTM_PL_VRAM: | |
44 | return RADEON_GEM_DOMAIN_VRAM; | |
45 | case TTM_PL_TT: | |
46 | return RADEON_GEM_DOMAIN_GTT; | |
47 | case TTM_PL_SYSTEM: | |
48 | return RADEON_GEM_DOMAIN_CPU; | |
49 | default: | |
50 | break; | |
51 | } | |
52 | return 0; | |
53 | } | |
54 | ||
55 | /** | |
56 | * radeon_bo_reserve - reserve bo | |
57 | * @bo: bo structure | |
58 | * @no_wait: don't sleep while trying to reserve (return -EBUSY) | |
59 | * | |
60 | * Returns: | |
61 | * -EBUSY: buffer is busy and @no_wait is true | |
62 | * -ERESTART: A wait for the buffer to become unreserved was interrupted by | |
63 | * a signal. Release all buffer reservations and return to user-space. | |
64 | */ | |
65 | static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait) | |
66 | { | |
67 | int r; | |
68 | ||
69 | retry: | |
70 | r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0); | |
71 | if (unlikely(r != 0)) { | |
72 | if (r == -ERESTART) | |
73 | goto retry; | |
74 | dev_err(bo->rdev->dev, "%p reserve failed\n", bo); | |
75 | return r; | |
76 | } | |
77 | return 0; | |
78 | } | |
79 | ||
80 | static inline void radeon_bo_unreserve(struct radeon_bo *bo) | |
81 | { | |
82 | ttm_bo_unreserve(&bo->tbo); | |
83 | } | |
84 | ||
85 | /** | |
86 | * radeon_bo_gpu_offset - return GPU offset of bo | |
87 | * @bo: radeon object for which we query the offset | |
88 | * | |
89 | * Returns current GPU offset of the object. | |
90 | * | |
91 | * Note: object should either be pinned or reserved when calling this | |
92 | * function, it might be usefull to add check for this for debugging. | |
93 | */ | |
94 | static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo) | |
95 | { | |
96 | return bo->tbo.offset; | |
97 | } | |
98 | ||
99 | static inline unsigned long radeon_bo_size(struct radeon_bo *bo) | |
100 | { | |
101 | return bo->tbo.num_pages << PAGE_SHIFT; | |
102 | } | |
103 | ||
104 | static inline bool radeon_bo_is_reserved(struct radeon_bo *bo) | |
105 | { | |
106 | return !!atomic_read(&bo->tbo.reserved); | |
107 | } | |
108 | ||
109 | /** | |
110 | * radeon_bo_mmap_offset - return mmap offset of bo | |
111 | * @bo: radeon object for which we query the offset | |
112 | * | |
113 | * Returns mmap offset of the object. | |
114 | * | |
115 | * Note: addr_space_offset is constant after ttm bo init thus isn't protected | |
116 | * by any lock. | |
771fe6b9 | 117 | */ |
4c788679 JG |
118 | static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo) |
119 | { | |
120 | return bo->tbo.addr_space_offset; | |
121 | } | |
122 | ||
123 | static inline int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type, | |
124 | bool no_wait) | |
125 | { | |
126 | int r; | |
127 | ||
128 | retry: | |
129 | r = ttm_bo_reserve(&bo->tbo, true, no_wait, false, 0); | |
130 | if (unlikely(r != 0)) { | |
131 | if (r == -ERESTART) | |
132 | goto retry; | |
133 | dev_err(bo->rdev->dev, "%p reserve failed for wait\n", bo); | |
134 | return r; | |
135 | } | |
136 | spin_lock(&bo->tbo.lock); | |
137 | if (mem_type) | |
138 | *mem_type = bo->tbo.mem.mem_type; | |
139 | if (bo->tbo.sync_obj) | |
140 | r = ttm_bo_wait(&bo->tbo, true, true, no_wait); | |
141 | spin_unlock(&bo->tbo.lock); | |
142 | ttm_bo_unreserve(&bo->tbo); | |
143 | if (unlikely(r == -ERESTART)) | |
144 | goto retry; | |
145 | return r; | |
146 | } | |
147 | ||
148 | extern int radeon_bo_create(struct radeon_device *rdev, | |
149 | struct drm_gem_object *gobj, unsigned long size, | |
150 | bool kernel, u32 domain, | |
151 | struct radeon_bo **bo_ptr); | |
152 | extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr); | |
153 | extern void radeon_bo_kunmap(struct radeon_bo *bo); | |
154 | extern void radeon_bo_unref(struct radeon_bo **bo); | |
155 | extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr); | |
156 | extern int radeon_bo_unpin(struct radeon_bo *bo); | |
157 | extern int radeon_bo_evict_vram(struct radeon_device *rdev); | |
158 | extern void radeon_bo_force_delete(struct radeon_device *rdev); | |
159 | extern int radeon_bo_init(struct radeon_device *rdev); | |
160 | extern void radeon_bo_fini(struct radeon_device *rdev); | |
161 | extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj, | |
162 | struct list_head *head); | |
163 | extern int radeon_bo_list_reserve(struct list_head *head); | |
164 | extern void radeon_bo_list_unreserve(struct list_head *head); | |
165 | extern int radeon_bo_list_validate(struct list_head *head, void *fence); | |
166 | extern void radeon_bo_list_unvalidate(struct list_head *head, void *fence); | |
167 | extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo, | |
168 | struct vm_area_struct *vma); | |
169 | extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo, | |
170 | u32 tiling_flags, u32 pitch); | |
171 | extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo, | |
172 | u32 *tiling_flags, u32 *pitch); | |
173 | extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved, | |
174 | bool force_drop); | |
175 | extern void radeon_bo_move_notify(struct ttm_buffer_object *bo, | |
176 | struct ttm_mem_reg *mem); | |
177 | extern void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo); | |
771fe6b9 JG |
178 | |
179 | #endif |