1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24#ifndef __AMDGPU_VM_H__
25#define __AMDGPU_VM_H__
26
27#include <linux/idr.h>
28#include <linux/kfifo.h>
29#include <linux/rbtree.h>
30#include <drm/gpu_scheduler.h>
31#include <drm/drm_file.h>
32#include <drm/ttm/ttm_bo_driver.h>
33#include <linux/sched/mm.h>
34
35#include "amdgpu_sync.h"
36#include "amdgpu_ring.h"
37#include "amdgpu_ids.h"
38
39struct amdgpu_bo_va;
40struct amdgpu_job;
41struct amdgpu_bo_list_entry;
42
43
44
45
46
47
48#define AMDGPU_VM_MAX_UPDATE_SIZE 0x3FFFF
49
50
51#define AMDGPU_VM_PTE_COUNT(adev) (1 << (adev)->vm_manager.block_size)
52
53#define AMDGPU_PTE_VALID (1ULL << 0)
54#define AMDGPU_PTE_SYSTEM (1ULL << 1)
55#define AMDGPU_PTE_SNOOPED (1ULL << 2)
56
57
58#define AMDGPU_PTE_TMZ (1ULL << 3)
59
60
61#define AMDGPU_PTE_EXECUTABLE (1ULL << 4)
62
63#define AMDGPU_PTE_READABLE (1ULL << 5)
64#define AMDGPU_PTE_WRITEABLE (1ULL << 6)
65
66#define AMDGPU_PTE_FRAG(x) ((x & 0x1fULL) << 7)
67
68
69#define AMDGPU_PTE_PRT (1ULL << 51)
70
71
72#define AMDGPU_PDE_PTE (1ULL << 54)
73
74#define AMDGPU_PTE_LOG (1ULL << 55)
75
76
77#define AMDGPU_PTE_TF (1ULL << 56)
78
79
80#define AMDGPU_PTE_NOALLOC (1ULL << 58)
81
82
83#define AMDGPU_PDE_BFS(a) ((uint64_t)a << 59)
84
85
86
87#define AMDGPU_PTE_MTYPE_VG10(a) ((uint64_t)(a) << 57)
88#define AMDGPU_PTE_MTYPE_VG10_MASK AMDGPU_PTE_MTYPE_VG10(3ULL)
89
90#define AMDGPU_MTYPE_NC 0
91#define AMDGPU_MTYPE_CC 2
92
93#define AMDGPU_PTE_DEFAULT_ATC (AMDGPU_PTE_SYSTEM \
94 | AMDGPU_PTE_SNOOPED \
95 | AMDGPU_PTE_EXECUTABLE \
96 | AMDGPU_PTE_READABLE \
97 | AMDGPU_PTE_WRITEABLE \
98 | AMDGPU_PTE_MTYPE_VG10(AMDGPU_MTYPE_CC))
99
100
101#define AMDGPU_PTE_MTYPE_NV10(a) ((uint64_t)(a) << 48)
102#define AMDGPU_PTE_MTYPE_NV10_MASK AMDGPU_PTE_MTYPE_NV10(7ULL)
103
104
105#define AMDGPU_VM_FAULT_STOP_NEVER 0
106#define AMDGPU_VM_FAULT_STOP_FIRST 1
107#define AMDGPU_VM_FAULT_STOP_ALWAYS 2
108
109
110#define AMDGPU_VM_RESERVED_VRAM (8ULL << 20)
111
112
113#define AMDGPU_MAX_VMHUBS 3
114#define AMDGPU_GFXHUB_0 0
115#define AMDGPU_MMHUB_0 1
116#define AMDGPU_MMHUB_1 2
117
118
119#define AMDGPU_VA_RESERVED_SIZE (2ULL << 20)
120
121
122#define AMDGPU_VM_MAX_RESERVED_VMID 1
123
124#define AMDGPU_VM_CONTEXT_GFX 0
125#define AMDGPU_VM_CONTEXT_COMPUTE 1
126
127
128#define AMDGPU_VM_USE_CPU_FOR_GFX (1 << 0)
129#define AMDGPU_VM_USE_CPU_FOR_COMPUTE (1 << 1)
130
131
132
133
134enum amdgpu_vm_level {
135 AMDGPU_VM_PDB2,
136 AMDGPU_VM_PDB1,
137 AMDGPU_VM_PDB0,
138 AMDGPU_VM_PTB
139};
140
141
142struct amdgpu_vm_bo_base {
143
144 struct amdgpu_vm *vm;
145 struct amdgpu_bo *bo;
146
147
148 struct amdgpu_vm_bo_base *next;
149
150
151 struct list_head vm_status;
152
153
154 bool moved;
155};
156
157struct amdgpu_vm_pt {
158 struct amdgpu_vm_bo_base base;
159
160
161 struct amdgpu_vm_pt *entries;
162};
163
164
165struct amdgpu_vm_pte_funcs {
166
167 unsigned copy_pte_num_dw;
168
169
170 void (*copy_pte)(struct amdgpu_ib *ib,
171 uint64_t pe, uint64_t src,
172 unsigned count);
173
174
175 void (*write_pte)(struct amdgpu_ib *ib, uint64_t pe,
176 uint64_t value, unsigned count,
177 uint32_t incr);
178
179 void (*set_pte_pde)(struct amdgpu_ib *ib,
180 uint64_t pe,
181 uint64_t addr, unsigned count,
182 uint32_t incr, uint64_t flags);
183};
184
185struct amdgpu_task_info {
186 char process_name[TASK_COMM_LEN];
187 char task_name[TASK_COMM_LEN];
188 pid_t pid;
189 pid_t tgid;
190};
191
192
193
194
195
196
197
198
199struct amdgpu_vm_update_params {
200
201
202
203
204 struct amdgpu_device *adev;
205
206
207
208
209 struct amdgpu_vm *vm;
210
211
212
213
214 bool immediate;
215
216
217
218
219 bool unlocked;
220
221
222
223
224
225
226 dma_addr_t *pages_addr;
227
228
229
230
231 struct amdgpu_job *job;
232
233
234
235
236 unsigned int num_dw_left;
237};
238
239struct amdgpu_vm_update_funcs {
240 int (*map_table)(struct amdgpu_bo *bo);
241 int (*prepare)(struct amdgpu_vm_update_params *p, struct dma_resv *resv,
242 enum amdgpu_sync_mode sync_mode);
243 int (*update)(struct amdgpu_vm_update_params *p,
244 struct amdgpu_bo *bo, uint64_t pe, uint64_t addr,
245 unsigned count, uint32_t incr, uint64_t flags);
246 int (*commit)(struct amdgpu_vm_update_params *p,
247 struct dma_fence **fence);
248};
249
250struct amdgpu_vm {
251
252 struct rb_root_cached va;
253
254
255
256
257 struct mutex eviction_lock;
258 bool evicting;
259 unsigned int saved_flags;
260
261
262 struct list_head evicted;
263
264
265 struct list_head relocated;
266
267
268 struct list_head moved;
269
270
271 struct list_head idle;
272
273
274 struct list_head invalidated;
275 spinlock_t invalidated_lock;
276
277
278 struct list_head freed;
279
280
281 struct list_head done;
282
283
284 struct amdgpu_vm_pt root;
285 struct dma_fence *last_update;
286
287
288 struct drm_sched_entity immediate;
289 struct drm_sched_entity delayed;
290
291
292 struct dma_fence *last_unlocked;
293
294 unsigned int pasid;
295
296 struct amdgpu_vmid *reserved_vmid[AMDGPU_MAX_VMHUBS];
297
298
299 bool use_cpu_for_update;
300
301
302 const struct amdgpu_vm_update_funcs *update_funcs;
303
304
305 bool pte_support_ats;
306
307
308 DECLARE_KFIFO(faults, u64, 128);
309
310
311 struct amdkfd_process_info *process_info;
312
313
314 struct list_head vm_list_node;
315
316
317 uint64_t pd_phys_addr;
318
319
320 struct amdgpu_task_info task_info;
321
322
323 struct ttm_lru_bulk_move lru_bulk_move;
324
325 bool bulk_moveable;
326
327 bool is_compute_context;
328};
329
330struct amdgpu_vm_manager {
331
332 struct amdgpu_vmid_mgr id_mgr[AMDGPU_MAX_VMHUBS];
333 unsigned int first_kfd_vmid;
334
335
336 u64 fence_context;
337 unsigned seqno[AMDGPU_MAX_RINGS];
338
339 uint64_t max_pfn;
340 uint32_t num_level;
341 uint32_t block_size;
342 uint32_t fragment_size;
343 enum amdgpu_vm_level root_level;
344
345 u64 vram_base_offset;
346
347 const struct amdgpu_vm_pte_funcs *vm_pte_funcs;
348 struct drm_gpu_scheduler *vm_pte_scheds[AMDGPU_MAX_RINGS];
349 unsigned vm_pte_num_scheds;
350 struct amdgpu_ring *page_fault;
351
352
353 spinlock_t prt_lock;
354 atomic_t num_prt_users;
355
356
357
358
359
360 int vm_update_mode;
361
362
363
364
365 struct idr pasid_idr;
366 spinlock_t pasid_lock;
367};
368
369#define amdgpu_vm_copy_pte(adev, ib, pe, src, count) ((adev)->vm_manager.vm_pte_funcs->copy_pte((ib), (pe), (src), (count)))
370#define amdgpu_vm_write_pte(adev, ib, pe, value, count, incr) ((adev)->vm_manager.vm_pte_funcs->write_pte((ib), (pe), (value), (count), (incr)))
371#define amdgpu_vm_set_pte_pde(adev, ib, pe, addr, count, incr, flags) ((adev)->vm_manager.vm_pte_funcs->set_pte_pde((ib), (pe), (addr), (count), (incr), (flags)))
372
373extern const struct amdgpu_vm_update_funcs amdgpu_vm_cpu_funcs;
374extern const struct amdgpu_vm_update_funcs amdgpu_vm_sdma_funcs;
375
376void amdgpu_vm_manager_init(struct amdgpu_device *adev);
377void amdgpu_vm_manager_fini(struct amdgpu_device *adev);
378
379long amdgpu_vm_wait_idle(struct amdgpu_vm *vm, long timeout);
380int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
381 int vm_context, u32 pasid);
382int amdgpu_vm_make_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm, u32 pasid);
383void amdgpu_vm_release_compute(struct amdgpu_device *adev, struct amdgpu_vm *vm);
384void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm);
385void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
386 struct list_head *validated,
387 struct amdgpu_bo_list_entry *entry);
388bool amdgpu_vm_ready(struct amdgpu_vm *vm);
389int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
390 int (*callback)(void *p, struct amdgpu_bo *bo),
391 void *param);
392int amdgpu_vm_flush(struct amdgpu_ring *ring, struct amdgpu_job *job, bool need_pipe_sync);
393int amdgpu_vm_update_pdes(struct amdgpu_device *adev,
394 struct amdgpu_vm *vm, bool immediate);
395int amdgpu_vm_clear_freed(struct amdgpu_device *adev,
396 struct amdgpu_vm *vm,
397 struct dma_fence **fence);
398int amdgpu_vm_handle_moved(struct amdgpu_device *adev,
399 struct amdgpu_vm *vm);
400int amdgpu_vm_bo_update(struct amdgpu_device *adev,
401 struct amdgpu_bo_va *bo_va,
402 bool clear);
403bool amdgpu_vm_evictable(struct amdgpu_bo *bo);
404void amdgpu_vm_bo_invalidate(struct amdgpu_device *adev,
405 struct amdgpu_bo *bo, bool evicted);
406uint64_t amdgpu_vm_map_gart(const dma_addr_t *pages_addr, uint64_t addr);
407struct amdgpu_bo_va *amdgpu_vm_bo_find(struct amdgpu_vm *vm,
408 struct amdgpu_bo *bo);
409struct amdgpu_bo_va *amdgpu_vm_bo_add(struct amdgpu_device *adev,
410 struct amdgpu_vm *vm,
411 struct amdgpu_bo *bo);
412int amdgpu_vm_bo_map(struct amdgpu_device *adev,
413 struct amdgpu_bo_va *bo_va,
414 uint64_t addr, uint64_t offset,
415 uint64_t size, uint64_t flags);
416int amdgpu_vm_bo_replace_map(struct amdgpu_device *adev,
417 struct amdgpu_bo_va *bo_va,
418 uint64_t addr, uint64_t offset,
419 uint64_t size, uint64_t flags);
420int amdgpu_vm_bo_unmap(struct amdgpu_device *adev,
421 struct amdgpu_bo_va *bo_va,
422 uint64_t addr);
423int amdgpu_vm_bo_clear_mappings(struct amdgpu_device *adev,
424 struct amdgpu_vm *vm,
425 uint64_t saddr, uint64_t size);
426struct amdgpu_bo_va_mapping *amdgpu_vm_bo_lookup_mapping(struct amdgpu_vm *vm,
427 uint64_t addr);
428void amdgpu_vm_bo_trace_cs(struct amdgpu_vm *vm, struct ww_acquire_ctx *ticket);
429void amdgpu_vm_bo_rmv(struct amdgpu_device *adev,
430 struct amdgpu_bo_va *bo_va);
431void amdgpu_vm_adjust_size(struct amdgpu_device *adev, uint32_t min_vm_size,
432 uint32_t fragment_size_default, unsigned max_level,
433 unsigned max_bits);
434int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
435bool amdgpu_vm_need_pipeline_sync(struct amdgpu_ring *ring,
436 struct amdgpu_job *job);
437void amdgpu_vm_check_compute_bug(struct amdgpu_device *adev);
438
439void amdgpu_vm_get_task_info(struct amdgpu_device *adev, u32 pasid,
440 struct amdgpu_task_info *task_info);
441bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid,
442 uint64_t addr);
443
444void amdgpu_vm_set_task_info(struct amdgpu_vm *vm);
445
446void amdgpu_vm_move_to_lru_tail(struct amdgpu_device *adev,
447 struct amdgpu_vm *vm);
448void amdgpu_vm_del_from_lru_notify(struct ttm_buffer_object *bo);
449
450#if defined(CONFIG_DEBUG_FS)
451void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m);
452#endif
453
454#endif
455