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 
31 #include <drm/radeon_drm.h>
32 #include "radeon.h"
33 
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 int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait);
56 
57 static inline void radeon_bo_unreserve(struct radeon_bo *bo)
58 {
59 	ttm_bo_unreserve(&bo->tbo);
60 }
61 
62 /**
63  * radeon_bo_gpu_offset - return GPU offset of bo
64  * @bo:	radeon object for which we query the offset
65  *
66  * Returns current GPU offset of the object.
67  *
68  * Note: object should either be pinned or reserved when calling this
69  * function, it might be useful to add check for this for debugging.
70  */
71 static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
72 {
73 	return bo->tbo.offset;
74 }
75 
76 static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
77 {
78 	return bo->tbo.num_pages << PAGE_SHIFT;
79 }
80 
81 static inline bool radeon_bo_is_reserved(struct radeon_bo *bo)
82 {
83 	return !!atomic_read(&bo->tbo.reserved);
84 }
85 
86 static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo)
87 {
88 	return (bo->tbo.num_pages << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
89 }
90 
91 static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
92 {
93 	return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
94 }
95 
96 /**
97  * radeon_bo_mmap_offset - return mmap offset of bo
98  * @bo:	radeon object for which we query the offset
99  *
100  * Returns mmap offset of the object.
101  *
102  * Note: addr_space_offset is constant after ttm bo init thus isn't protected
103  * by any lock.
104  */
105 static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
106 {
107 	return bo->tbo.addr_space_offset;
108 }
109 
110 extern int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type,
111 			  bool no_wait);
112 
113 extern int radeon_bo_create(struct radeon_device *rdev,
114 				unsigned long size, int byte_align,
115 				bool kernel, u32 domain,
116 				struct radeon_bo **bo_ptr);
117 extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
118 extern void radeon_bo_kunmap(struct radeon_bo *bo);
119 extern void radeon_bo_unref(struct radeon_bo **bo);
120 extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
121 extern int radeon_bo_unpin(struct radeon_bo *bo);
122 extern int radeon_bo_evict_vram(struct radeon_device *rdev);
123 extern void radeon_bo_force_delete(struct radeon_device *rdev);
124 extern int radeon_bo_init(struct radeon_device *rdev);
125 extern void radeon_bo_fini(struct radeon_device *rdev);
126 extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
127 				struct list_head *head);
128 extern int radeon_bo_list_validate(struct list_head *head);
129 extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
130 				struct vm_area_struct *vma);
131 extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
132 				u32 tiling_flags, u32 pitch);
133 extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
134 				u32 *tiling_flags, u32 *pitch);
135 extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
136 				bool force_drop);
137 extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
138 					struct ttm_mem_reg *mem);
139 extern int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
140 extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
141 extern struct radeon_bo_va *radeon_bo_va(struct radeon_bo *rbo,
142 					 struct radeon_vm *vm);
143 
144 /*
145  * sub allocation
146  */
147 extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
148 				     struct radeon_sa_manager *sa_manager,
149 				     unsigned size, u32 domain);
150 extern void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
151 				      struct radeon_sa_manager *sa_manager);
152 extern int radeon_sa_bo_manager_start(struct radeon_device *rdev,
153 				      struct radeon_sa_manager *sa_manager);
154 extern int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
155 					struct radeon_sa_manager *sa_manager);
156 extern int radeon_sa_bo_new(struct radeon_device *rdev,
157 			    struct radeon_sa_manager *sa_manager,
158 			    struct radeon_sa_bo *sa_bo,
159 			    unsigned size, unsigned align);
160 extern void radeon_sa_bo_free(struct radeon_device *rdev,
161 			      struct radeon_sa_bo *sa_bo);
162 
163 #endif
164