drm/amdgpu: improve amdgpu_bo_create_kernel
[linux-2.6-block.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_object.h
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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 __AMDGPU_OBJECT_H__
29#define __AMDGPU_OBJECT_H__
30
31#include <drm/amdgpu_drm.h>
32#include "amdgpu.h"
33
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34#define AMDGPU_BO_INVALID_OFFSET LONG_MAX
35
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36struct amdgpu_bo_va_mapping {
37 struct list_head list;
38 struct rb_node rb;
39 uint64_t start;
40 uint64_t last;
41 uint64_t __subtree_last;
42 uint64_t offset;
43 uint64_t flags;
44};
45
46/* bo virtual addresses in a specific vm */
47struct amdgpu_bo_va {
48 /* protected by bo being reserved */
49 struct list_head bo_list;
50 struct dma_fence *last_pt_update;
51 unsigned ref_count;
52
53 /* protected by vm mutex and spinlock */
54 struct list_head vm_status;
55
56 /* mappings for this bo_va */
57 struct list_head invalids;
58 struct list_head valids;
59
60 /* constant after initialization */
61 struct amdgpu_vm *vm;
62 struct amdgpu_bo *bo;
63};
64
65
66struct amdgpu_bo {
67 /* Protected by tbo.reserved */
68 u32 prefered_domains;
69 u32 allowed_domains;
70 struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
71 struct ttm_placement placement;
72 struct ttm_buffer_object tbo;
73 struct ttm_bo_kmap_obj kmap;
74 u64 flags;
75 unsigned pin_count;
76 u64 tiling_flags;
77 u64 metadata_flags;
78 void *metadata;
79 u32 metadata_size;
80 unsigned prime_shared_count;
81 /* list of all virtual address to which this bo is associated to */
82 struct list_head va;
83 /* Constant after initialization */
84 struct drm_gem_object gem_base;
85 struct amdgpu_bo *parent;
86 struct amdgpu_bo *shadow;
87
88 struct ttm_bo_kmap_obj dma_buf_vmap;
89 struct amdgpu_mn *mn;
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90
91 union {
92 struct list_head mn_list;
93 struct list_head shadow_list;
94 };
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95};
96
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97/**
98 * amdgpu_mem_type_to_domain - return domain corresponding to mem_type
99 * @mem_type: ttm memory type
100 *
101 * Returns corresponding domain of the ttm mem_type
102 */
103static inline unsigned amdgpu_mem_type_to_domain(u32 mem_type)
104{
105 switch (mem_type) {
106 case TTM_PL_VRAM:
107 return AMDGPU_GEM_DOMAIN_VRAM;
108 case TTM_PL_TT:
109 return AMDGPU_GEM_DOMAIN_GTT;
110 case TTM_PL_SYSTEM:
111 return AMDGPU_GEM_DOMAIN_CPU;
112 case AMDGPU_PL_GDS:
113 return AMDGPU_GEM_DOMAIN_GDS;
114 case AMDGPU_PL_GWS:
115 return AMDGPU_GEM_DOMAIN_GWS;
116 case AMDGPU_PL_OA:
117 return AMDGPU_GEM_DOMAIN_OA;
118 default:
119 break;
120 }
121 return 0;
122}
123
124/**
125 * amdgpu_bo_reserve - reserve bo
126 * @bo: bo structure
127 * @no_intr: don't return -ERESTARTSYS on pending signal
128 *
129 * Returns:
130 * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
131 * a signal. Release all buffer reservations and return to user-space.
132 */
133static inline int amdgpu_bo_reserve(struct amdgpu_bo *bo, bool no_intr)
134{
a7d64de6 135 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
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136 int r;
137
dfd5e50e 138 r = ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
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139 if (unlikely(r != 0)) {
140 if (r != -ERESTARTSYS)
a7d64de6 141 dev_err(adev->dev, "%p reserve failed\n", bo);
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142 return r;
143 }
144 return 0;
145}
146
147static inline void amdgpu_bo_unreserve(struct amdgpu_bo *bo)
148{
149 ttm_bo_unreserve(&bo->tbo);
150}
151
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152static inline unsigned long amdgpu_bo_size(struct amdgpu_bo *bo)
153{
154 return bo->tbo.num_pages << PAGE_SHIFT;
155}
156
157static inline unsigned amdgpu_bo_ngpu_pages(struct amdgpu_bo *bo)
158{
159 return (bo->tbo.num_pages << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE;
160}
161
162static inline unsigned amdgpu_bo_gpu_page_alignment(struct amdgpu_bo *bo)
163{
164 return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE;
165}
166
167/**
168 * amdgpu_bo_mmap_offset - return mmap offset of bo
169 * @bo: amdgpu object for which we query the offset
170 *
171 * Returns mmap offset of the object.
172 */
173static inline u64 amdgpu_bo_mmap_offset(struct amdgpu_bo *bo)
174{
175 return drm_vma_node_offset_addr(&bo->tbo.vma_node);
176}
177
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178/**
179 * amdgpu_bo_gpu_accessible - return whether the bo is currently in memory that
180 * is accessible to the GPU.
181 */
182static inline bool amdgpu_bo_gpu_accessible(struct amdgpu_bo *bo)
183{
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184 switch (bo->tbo.mem.mem_type) {
185 case TTM_PL_TT: return amdgpu_ttm_is_bound(bo->tbo.ttm);
186 case TTM_PL_VRAM: return true;
187 default: return false;
188 }
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189}
190
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191int amdgpu_bo_create(struct amdgpu_device *adev,
192 unsigned long size, int byte_align,
193 bool kernel, u32 domain, u64 flags,
194 struct sg_table *sg,
72d7668b 195 struct reservation_object *resv,
d38ceaf9 196 struct amdgpu_bo **bo_ptr);
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197int amdgpu_bo_create_restricted(struct amdgpu_device *adev,
198 unsigned long size, int byte_align,
199 bool kernel, u32 domain, u64 flags,
200 struct sg_table *sg,
201 struct ttm_placement *placement,
72d7668b 202 struct reservation_object *resv,
7e5a547f 203 struct amdgpu_bo **bo_ptr);
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204int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
205 unsigned long size, int align,
206 u32 domain, struct amdgpu_bo **bo_ptr,
207 u64 *gpu_addr, void **cpu_addr);
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208void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
209 void **cpu_addr);
d38ceaf9 210int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr);
f5e1c740 211void *amdgpu_bo_kptr(struct amdgpu_bo *bo);
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212void amdgpu_bo_kunmap(struct amdgpu_bo *bo);
213struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo);
214void amdgpu_bo_unref(struct amdgpu_bo **bo);
215int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain, u64 *gpu_addr);
216int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
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217 u64 min_offset, u64 max_offset,
218 u64 *gpu_addr);
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219int amdgpu_bo_unpin(struct amdgpu_bo *bo);
220int amdgpu_bo_evict_vram(struct amdgpu_device *adev);
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221int amdgpu_bo_init(struct amdgpu_device *adev);
222void amdgpu_bo_fini(struct amdgpu_device *adev);
223int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo,
224 struct vm_area_struct *vma);
225int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags);
226void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags);
227int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
228 uint32_t metadata_size, uint64_t flags);
229int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
230 size_t buffer_size, uint32_t *metadata_size,
231 uint64_t *flags);
232void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
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233 bool evict,
234 struct ttm_mem_reg *new_mem);
d38ceaf9 235int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
f54d1867 236void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
d38ceaf9 237 bool shared);
cdb7e8f2 238u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo);
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239int amdgpu_bo_backup_to_shadow(struct amdgpu_device *adev,
240 struct amdgpu_ring *ring,
241 struct amdgpu_bo *bo,
242 struct reservation_object *resv,
f54d1867 243 struct dma_fence **fence, bool direct);
82521316 244int amdgpu_bo_validate(struct amdgpu_bo *bo);
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245int amdgpu_bo_restore_from_shadow(struct amdgpu_device *adev,
246 struct amdgpu_ring *ring,
247 struct amdgpu_bo *bo,
248 struct reservation_object *resv,
f54d1867 249 struct dma_fence **fence,
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250 bool direct);
251
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252
253/*
254 * sub allocation
255 */
256
257static inline uint64_t amdgpu_sa_bo_gpu_addr(struct amdgpu_sa_bo *sa_bo)
258{
259 return sa_bo->manager->gpu_addr + sa_bo->soffset;
260}
261
262static inline void * amdgpu_sa_bo_cpu_addr(struct amdgpu_sa_bo *sa_bo)
263{
264 return sa_bo->manager->cpu_ptr + sa_bo->soffset;
265}
266
267int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev,
268 struct amdgpu_sa_manager *sa_manager,
269 unsigned size, u32 align, u32 domain);
270void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev,
271 struct amdgpu_sa_manager *sa_manager);
272int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev,
273 struct amdgpu_sa_manager *sa_manager);
274int amdgpu_sa_bo_manager_suspend(struct amdgpu_device *adev,
275 struct amdgpu_sa_manager *sa_manager);
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276int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager,
277 struct amdgpu_sa_bo **sa_bo,
278 unsigned size, unsigned align);
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279void amdgpu_sa_bo_free(struct amdgpu_device *adev,
280 struct amdgpu_sa_bo **sa_bo,
f54d1867 281 struct dma_fence *fence);
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282#if defined(CONFIG_DEBUG_FS)
283void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager,
284 struct seq_file *m);
285#endif
286
287
288#endif