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-rw-r--r--drivers/gpu/drm/radeon/radeon_object.h157
1 files changed, 145 insertions, 12 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h
index 10e8af6bb456..e9da13077e2f 100644
--- a/drivers/gpu/drm/radeon/radeon_object.h
+++ b/drivers/gpu/drm/radeon/radeon_object.h
@@ -28,19 +28,152 @@
28#ifndef __RADEON_OBJECT_H__ 28#ifndef __RADEON_OBJECT_H__
29#define __RADEON_OBJECT_H__ 29#define __RADEON_OBJECT_H__
30 30
31#include <ttm/ttm_bo_api.h> 31#include <drm/radeon_drm.h>
32#include <ttm/ttm_bo_driver.h> 32#include "radeon.h"
33#include <ttm/ttm_placement.h>
34#include <ttm/ttm_module.h>
35 33
36/* 34/**
37 * TTM. 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 */
40static 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 */
65static inline int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait)
66{
67 int r;
68
69retry:
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
80static 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 */
94static inline u64 radeon_bo_gpu_offset(struct radeon_bo *bo)
95{
96 return bo->tbo.offset;
97}
98
99static inline unsigned long radeon_bo_size(struct radeon_bo *bo)
100{
101 return bo->tbo.num_pages << PAGE_SHIFT;
102}
103
104static 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.
38 */ 117 */
39struct radeon_mman { 118static inline u64 radeon_bo_mmap_offset(struct radeon_bo *bo)
40 struct ttm_bo_global_ref bo_global_ref; 119{
41 struct ttm_global_reference mem_global_ref; 120 return bo->tbo.addr_space_offset;
42 bool mem_global_referenced; 121}
43 struct ttm_bo_device bdev; 122
44}; 123static inline int radeon_bo_wait(struct radeon_bo *bo, u32 *mem_type,
124 bool no_wait)
125{
126 int r;
127
128retry:
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
148extern 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);
152extern int radeon_bo_kmap(struct radeon_bo *bo, void **ptr);
153extern void radeon_bo_kunmap(struct radeon_bo *bo);
154extern void radeon_bo_unref(struct radeon_bo **bo);
155extern int radeon_bo_pin(struct radeon_bo *bo, u32 domain, u64 *gpu_addr);
156extern int radeon_bo_unpin(struct radeon_bo *bo);
157extern int radeon_bo_evict_vram(struct radeon_device *rdev);
158extern void radeon_bo_force_delete(struct radeon_device *rdev);
159extern int radeon_bo_init(struct radeon_device *rdev);
160extern void radeon_bo_fini(struct radeon_device *rdev);
161extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
162 struct list_head *head);
163extern int radeon_bo_list_reserve(struct list_head *head);
164extern void radeon_bo_list_unreserve(struct list_head *head);
165extern int radeon_bo_list_validate(struct list_head *head, void *fence);
166extern void radeon_bo_list_unvalidate(struct list_head *head, void *fence);
167extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
168 struct vm_area_struct *vma);
169extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
170 u32 tiling_flags, u32 pitch);
171extern void radeon_bo_get_tiling_flags(struct radeon_bo *bo,
172 u32 *tiling_flags, u32 *pitch);
173extern int radeon_bo_check_tiling(struct radeon_bo *bo, bool has_moved,
174 bool force_drop);
175extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
176 struct ttm_mem_reg *mem);
177extern void radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
45 178
46#endif 179#endif
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-04 05:07:36 -0500