drm/amdgpu: allocate PDs/PTs with no_gpu_wait in a page fault
[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
9702d40d 34#define AMDGPU_BO_INVALID_OFFSET LONG_MAX
bf314ca3 35#define AMDGPU_BO_MAX_PLACEMENTS 3
9702d40d 36
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37struct amdgpu_bo_param {
38 unsigned long size;
39 int byte_align;
40 u32 domain;
aa2b2e28 41 u32 preferred_domain;
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42 u64 flags;
43 enum ttm_bo_type type;
061468c4 44 bool no_wait_gpu;
52791eee 45 struct dma_resv *resv;
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46};
47
ec681545 48/* bo virtual addresses in a vm */
9124a398 49struct amdgpu_bo_va_mapping {
aebc5e6f 50 struct amdgpu_bo_va *bo_va;
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51 struct list_head list;
52 struct rb_node rb;
53 uint64_t start;
54 uint64_t last;
55 uint64_t __subtree_last;
56 uint64_t offset;
57 uint64_t flags;
58};
59
ec681545 60/* User space allocated BO in a VM */
9124a398 61struct amdgpu_bo_va {
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62 struct amdgpu_vm_bo_base base;
63
9124a398 64 /* protected by bo being reserved */
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65 unsigned ref_count;
66
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67 /* all other members protected by the VM PD being reserved */
68 struct dma_fence *last_pt_update;
69
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70 /* mappings for this bo_va */
71 struct list_head invalids;
72 struct list_head valids;
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73
74 /* If the mappings are cleared or filled */
75 bool cleared;
df399b06 76
77 bool is_xgmi;
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78};
79
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80struct amdgpu_bo {
81 /* Protected by tbo.reserved */
6d7d9c5a 82 u32 preferred_domains;
9124a398 83 u32 allowed_domains;
bf314ca3 84 struct ttm_place placements[AMDGPU_BO_MAX_PLACEMENTS];
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85 struct ttm_placement placement;
86 struct ttm_buffer_object tbo;
87 struct ttm_bo_kmap_obj kmap;
88 u64 flags;
89 unsigned pin_count;
90 u64 tiling_flags;
91 u64 metadata_flags;
92 void *metadata;
93 u32 metadata_size;
94 unsigned prime_shared_count;
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95 /* per VM structure for page tables and with virtual addresses */
96 struct amdgpu_vm_bo_base *vm_bo;
9124a398 97 /* Constant after initialization */
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98 struct amdgpu_bo *parent;
99 struct amdgpu_bo *shadow;
100
101 struct ttm_bo_kmap_obj dma_buf_vmap;
102 struct amdgpu_mn *mn;
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103
104 union {
105 struct list_head mn_list;
106 struct list_head shadow_list;
107 };
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108
109 struct kgd_mem *kfd_bo;
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110};
111
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112static inline struct amdgpu_bo *ttm_to_amdgpu_bo(struct ttm_buffer_object *tbo)
113{
114 return container_of(tbo, struct amdgpu_bo, tbo);
115}
116
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117/**
118 * amdgpu_mem_type_to_domain - return domain corresponding to mem_type
119 * @mem_type: ttm memory type
120 *
121 * Returns corresponding domain of the ttm mem_type
122 */
123static inline unsigned amdgpu_mem_type_to_domain(u32 mem_type)
124{
125 switch (mem_type) {
126 case TTM_PL_VRAM:
127 return AMDGPU_GEM_DOMAIN_VRAM;
128 case TTM_PL_TT:
129 return AMDGPU_GEM_DOMAIN_GTT;
130 case TTM_PL_SYSTEM:
131 return AMDGPU_GEM_DOMAIN_CPU;
132 case AMDGPU_PL_GDS:
133 return AMDGPU_GEM_DOMAIN_GDS;
134 case AMDGPU_PL_GWS:
135 return AMDGPU_GEM_DOMAIN_GWS;
136 case AMDGPU_PL_OA:
137 return AMDGPU_GEM_DOMAIN_OA;
138 default:
139 break;
140 }
141 return 0;
142}
143
144/**
145 * amdgpu_bo_reserve - reserve bo
146 * @bo: bo structure
147 * @no_intr: don't return -ERESTARTSYS on pending signal
148 *
149 * Returns:
150 * -ERESTARTSYS: A wait for the buffer to become unreserved was interrupted by
151 * a signal. Release all buffer reservations and return to user-space.
152 */
153static inline int amdgpu_bo_reserve(struct amdgpu_bo *bo, bool no_intr)
154{
a7d64de6 155 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
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156 int r;
157
55c2e5a1 158 r = __ttm_bo_reserve(&bo->tbo, !no_intr, false, NULL);
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159 if (unlikely(r != 0)) {
160 if (r != -ERESTARTSYS)
a7d64de6 161 dev_err(adev->dev, "%p reserve failed\n", bo);
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162 return r;
163 }
164 return 0;
165}
166
167static inline void amdgpu_bo_unreserve(struct amdgpu_bo *bo)
168{
169 ttm_bo_unreserve(&bo->tbo);
170}
171
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172static inline unsigned long amdgpu_bo_size(struct amdgpu_bo *bo)
173{
174 return bo->tbo.num_pages << PAGE_SHIFT;
175}
176
177static inline unsigned amdgpu_bo_ngpu_pages(struct amdgpu_bo *bo)
178{
179 return (bo->tbo.num_pages << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE;
180}
181
182static inline unsigned amdgpu_bo_gpu_page_alignment(struct amdgpu_bo *bo)
183{
184 return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / AMDGPU_GPU_PAGE_SIZE;
185}
186
187/**
188 * amdgpu_bo_mmap_offset - return mmap offset of bo
189 * @bo: amdgpu object for which we query the offset
190 *
191 * Returns mmap offset of the object.
192 */
193static inline u64 amdgpu_bo_mmap_offset(struct amdgpu_bo *bo)
194{
b96f3e7c 195 return drm_vma_node_offset_addr(&bo->tbo.base.vma_node);
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196}
197
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198/**
199 * amdgpu_bo_in_cpu_visible_vram - check if BO is (partly) in visible VRAM
200 */
201static inline bool amdgpu_bo_in_cpu_visible_vram(struct amdgpu_bo *bo)
202{
203 struct amdgpu_device *adev = amdgpu_ttm_adev(bo->tbo.bdev);
204 unsigned fpfn = adev->gmc.visible_vram_size >> PAGE_SHIFT;
205 struct drm_mm_node *node = bo->tbo.mem.mm_node;
206 unsigned long pages_left;
207
208 if (bo->tbo.mem.mem_type != TTM_PL_VRAM)
209 return false;
210
211 for (pages_left = bo->tbo.mem.num_pages; pages_left;
212 pages_left -= node->size, node++)
213 if (node->start < fpfn)
214 return true;
215
216 return false;
217}
218
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219/**
220 * amdgpu_bo_explicit_sync - return whether the bo is explicitly synced
221 */
222static inline bool amdgpu_bo_explicit_sync(struct amdgpu_bo *bo)
223{
224 return bo->flags & AMDGPU_GEM_CREATE_EXPLICIT_SYNC;
225}
226
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227bool amdgpu_bo_is_amdgpu_bo(struct ttm_buffer_object *bo);
228void amdgpu_bo_placement_from_domain(struct amdgpu_bo *abo, u32 domain);
229
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230int amdgpu_bo_create(struct amdgpu_device *adev,
231 struct amdgpu_bo_param *bp,
eab3de23 232 struct amdgpu_bo **bo_ptr);
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233int amdgpu_bo_create_reserved(struct amdgpu_device *adev,
234 unsigned long size, int align,
235 u32 domain, struct amdgpu_bo **bo_ptr,
236 u64 *gpu_addr, void **cpu_addr);
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237int amdgpu_bo_create_kernel(struct amdgpu_device *adev,
238 unsigned long size, int align,
239 u32 domain, struct amdgpu_bo **bo_ptr,
240 u64 *gpu_addr, void **cpu_addr);
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241void amdgpu_bo_free_kernel(struct amdgpu_bo **bo, u64 *gpu_addr,
242 void **cpu_addr);
d38ceaf9 243int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr);
f5e1c740 244void *amdgpu_bo_kptr(struct amdgpu_bo *bo);
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245void amdgpu_bo_kunmap(struct amdgpu_bo *bo);
246struct amdgpu_bo *amdgpu_bo_ref(struct amdgpu_bo *bo);
247void amdgpu_bo_unref(struct amdgpu_bo **bo);
7b7c6c81 248int amdgpu_bo_pin(struct amdgpu_bo *bo, u32 domain);
d38ceaf9 249int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain,
7b7c6c81 250 u64 min_offset, u64 max_offset);
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251int amdgpu_bo_unpin(struct amdgpu_bo *bo);
252int amdgpu_bo_evict_vram(struct amdgpu_device *adev);
d38ceaf9 253int amdgpu_bo_init(struct amdgpu_device *adev);
6f752ec2 254int amdgpu_bo_late_init(struct amdgpu_device *adev);
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255void amdgpu_bo_fini(struct amdgpu_device *adev);
256int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo,
257 struct vm_area_struct *vma);
258int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags);
259void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags);
260int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,
261 uint32_t metadata_size, uint64_t flags);
262int amdgpu_bo_get_metadata(struct amdgpu_bo *bo, void *buffer,
263 size_t buffer_size, uint32_t *metadata_size,
264 uint64_t *flags);
265void amdgpu_bo_move_notify(struct ttm_buffer_object *bo,
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266 bool evict,
267 struct ttm_mem_reg *new_mem);
ab2f7a5c 268void amdgpu_bo_release_notify(struct ttm_buffer_object *bo);
d38ceaf9 269int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
f54d1867 270void amdgpu_bo_fence(struct amdgpu_bo *bo, struct dma_fence *fence,
d38ceaf9 271 bool shared);
e8e32426 272int amdgpu_bo_sync_wait(struct amdgpu_bo *bo, void *owner, bool intr);
cdb7e8f2 273u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo);
82521316 274int amdgpu_bo_validate(struct amdgpu_bo *bo);
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275int amdgpu_bo_restore_shadow(struct amdgpu_bo *shadow,
276 struct dma_fence **fence);
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277uint32_t amdgpu_bo_get_preferred_pin_domain(struct amdgpu_device *adev,
278 uint32_t domain);
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279
280/*
281 * sub allocation
282 */
283
284static inline uint64_t amdgpu_sa_bo_gpu_addr(struct amdgpu_sa_bo *sa_bo)
285{
286 return sa_bo->manager->gpu_addr + sa_bo->soffset;
287}
288
289static inline void * amdgpu_sa_bo_cpu_addr(struct amdgpu_sa_bo *sa_bo)
290{
291 return sa_bo->manager->cpu_ptr + sa_bo->soffset;
292}
293
294int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev,
295 struct amdgpu_sa_manager *sa_manager,
296 unsigned size, u32 align, u32 domain);
297void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev,
298 struct amdgpu_sa_manager *sa_manager);
299int amdgpu_sa_bo_manager_start(struct amdgpu_device *adev,
300 struct amdgpu_sa_manager *sa_manager);
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301int amdgpu_sa_bo_new(struct amdgpu_sa_manager *sa_manager,
302 struct amdgpu_sa_bo **sa_bo,
303 unsigned size, unsigned align);
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304void amdgpu_sa_bo_free(struct amdgpu_device *adev,
305 struct amdgpu_sa_bo **sa_bo,
f54d1867 306 struct dma_fence *fence);
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307#if defined(CONFIG_DEBUG_FS)
308void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager,
309 struct seq_file *m);
310#endif
311
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312bool amdgpu_bo_support_uswc(u64 bo_flags);
313
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314
315#endif