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b88baab8 DK |
1 | // SPDX-License-Identifier: MIT |
2 | ||
3 | /* | |
4 | * Locking: | |
5 | * | |
6 | * The uvmm mutex protects any operations on the GPU VA space provided by the | |
7 | * DRM GPU VA manager. | |
8 | * | |
9 | * The GEMs dma_resv lock protects the GEMs GPUVA list, hence link/unlink of a | |
10 | * mapping to it's backing GEM must be performed under this lock. | |
11 | * | |
12 | * Actual map/unmap operations within the fence signalling critical path are | |
13 | * protected by installing DMA fences to the corresponding GEMs DMA | |
14 | * reservations, such that concurrent BO moves, which itself walk the GEMs GPUVA | |
15 | * list in order to map/unmap it's entries, can't occur concurrently. | |
16 | * | |
17 | * Accessing the DRM_GPUVA_INVALIDATED flag doesn't need any separate | |
18 | * protection, since there are no accesses other than from BO move callbacks | |
19 | * and from the fence signalling critical path, which are already protected by | |
20 | * the corresponding GEMs DMA reservation fence. | |
21 | */ | |
22 | ||
23 | #include "nouveau_drv.h" | |
24 | #include "nouveau_gem.h" | |
25 | #include "nouveau_mem.h" | |
26 | #include "nouveau_uvmm.h" | |
27 | ||
28 | #include <nvif/vmm.h> | |
29 | #include <nvif/mem.h> | |
30 | ||
31 | #include <nvif/class.h> | |
32 | #include <nvif/if000c.h> | |
33 | #include <nvif/if900d.h> | |
34 | ||
35 | #define NOUVEAU_VA_SPACE_BITS 47 /* FIXME */ | |
36 | #define NOUVEAU_VA_SPACE_START 0x0 | |
37 | #define NOUVEAU_VA_SPACE_END (1ULL << NOUVEAU_VA_SPACE_BITS) | |
38 | ||
39 | #define list_last_op(_ops) list_last_entry(_ops, struct bind_job_op, entry) | |
40 | #define list_prev_op(_op) list_prev_entry(_op, entry) | |
41 | #define list_for_each_op(_op, _ops) list_for_each_entry(_op, _ops, entry) | |
42 | #define list_for_each_op_from_reverse(_op, _ops) \ | |
43 | list_for_each_entry_from_reverse(_op, _ops, entry) | |
44 | #define list_for_each_op_safe(_op, _n, _ops) list_for_each_entry_safe(_op, _n, _ops, entry) | |
45 | ||
46 | enum vm_bind_op { | |
47 | OP_MAP = DRM_NOUVEAU_VM_BIND_OP_MAP, | |
48 | OP_UNMAP = DRM_NOUVEAU_VM_BIND_OP_UNMAP, | |
49 | OP_MAP_SPARSE, | |
50 | OP_UNMAP_SPARSE, | |
51 | }; | |
52 | ||
53 | struct nouveau_uvma_prealloc { | |
54 | struct nouveau_uvma *map; | |
55 | struct nouveau_uvma *prev; | |
56 | struct nouveau_uvma *next; | |
57 | }; | |
58 | ||
59 | struct bind_job_op { | |
60 | struct list_head entry; | |
61 | ||
62 | enum vm_bind_op op; | |
63 | u32 flags; | |
64 | ||
94bc2249 DK |
65 | struct drm_gpuvm_bo *vm_bo; |
66 | ||
b88baab8 DK |
67 | struct { |
68 | u64 addr; | |
69 | u64 range; | |
70 | } va; | |
71 | ||
72 | struct { | |
73 | u32 handle; | |
74 | u64 offset; | |
75 | struct drm_gem_object *obj; | |
76 | } gem; | |
77 | ||
78 | struct nouveau_uvma_region *reg; | |
79 | struct nouveau_uvma_prealloc new; | |
80 | struct drm_gpuva_ops *ops; | |
81 | }; | |
82 | ||
83 | struct uvmm_map_args { | |
84 | struct nouveau_uvma_region *region; | |
85 | u64 addr; | |
86 | u64 range; | |
87 | u8 kind; | |
88 | }; | |
89 | ||
90 | static int | |
91 | nouveau_uvmm_vmm_sparse_ref(struct nouveau_uvmm *uvmm, | |
92 | u64 addr, u64 range) | |
93 | { | |
94 | struct nvif_vmm *vmm = &uvmm->vmm.vmm; | |
95 | ||
96 | return nvif_vmm_raw_sparse(vmm, addr, range, true); | |
97 | } | |
98 | ||
99 | static int | |
100 | nouveau_uvmm_vmm_sparse_unref(struct nouveau_uvmm *uvmm, | |
101 | u64 addr, u64 range) | |
102 | { | |
103 | struct nvif_vmm *vmm = &uvmm->vmm.vmm; | |
104 | ||
105 | return nvif_vmm_raw_sparse(vmm, addr, range, false); | |
106 | } | |
107 | ||
108 | static int | |
109 | nouveau_uvmm_vmm_get(struct nouveau_uvmm *uvmm, | |
110 | u64 addr, u64 range) | |
111 | { | |
112 | struct nvif_vmm *vmm = &uvmm->vmm.vmm; | |
113 | ||
114 | return nvif_vmm_raw_get(vmm, addr, range, PAGE_SHIFT); | |
115 | } | |
116 | ||
117 | static int | |
118 | nouveau_uvmm_vmm_put(struct nouveau_uvmm *uvmm, | |
119 | u64 addr, u64 range) | |
120 | { | |
121 | struct nvif_vmm *vmm = &uvmm->vmm.vmm; | |
122 | ||
123 | return nvif_vmm_raw_put(vmm, addr, range, PAGE_SHIFT); | |
124 | } | |
125 | ||
126 | static int | |
127 | nouveau_uvmm_vmm_unmap(struct nouveau_uvmm *uvmm, | |
128 | u64 addr, u64 range, bool sparse) | |
129 | { | |
130 | struct nvif_vmm *vmm = &uvmm->vmm.vmm; | |
131 | ||
132 | return nvif_vmm_raw_unmap(vmm, addr, range, PAGE_SHIFT, sparse); | |
133 | } | |
134 | ||
135 | static int | |
136 | nouveau_uvmm_vmm_map(struct nouveau_uvmm *uvmm, | |
137 | u64 addr, u64 range, | |
138 | u64 bo_offset, u8 kind, | |
139 | struct nouveau_mem *mem) | |
140 | { | |
141 | struct nvif_vmm *vmm = &uvmm->vmm.vmm; | |
142 | union { | |
143 | struct gf100_vmm_map_v0 gf100; | |
144 | } args; | |
145 | u32 argc = 0; | |
146 | ||
147 | switch (vmm->object.oclass) { | |
148 | case NVIF_CLASS_VMM_GF100: | |
149 | case NVIF_CLASS_VMM_GM200: | |
150 | case NVIF_CLASS_VMM_GP100: | |
151 | args.gf100.version = 0; | |
152 | if (mem->mem.type & NVIF_MEM_VRAM) | |
153 | args.gf100.vol = 0; | |
154 | else | |
155 | args.gf100.vol = 1; | |
156 | args.gf100.ro = 0; | |
157 | args.gf100.priv = 0; | |
158 | args.gf100.kind = kind; | |
159 | argc = sizeof(args.gf100); | |
160 | break; | |
161 | default: | |
162 | WARN_ON(1); | |
163 | return -ENOSYS; | |
164 | } | |
165 | ||
166 | return nvif_vmm_raw_map(vmm, addr, range, PAGE_SHIFT, | |
167 | &args, argc, | |
168 | &mem->mem, bo_offset); | |
169 | } | |
170 | ||
171 | static int | |
172 | nouveau_uvma_region_sparse_unref(struct nouveau_uvma_region *reg) | |
173 | { | |
174 | u64 addr = reg->va.addr; | |
175 | u64 range = reg->va.range; | |
176 | ||
177 | return nouveau_uvmm_vmm_sparse_unref(reg->uvmm, addr, range); | |
178 | } | |
179 | ||
180 | static int | |
181 | nouveau_uvma_vmm_put(struct nouveau_uvma *uvma) | |
182 | { | |
183 | u64 addr = uvma->va.va.addr; | |
184 | u64 range = uvma->va.va.range; | |
185 | ||
a3540b46 | 186 | return nouveau_uvmm_vmm_put(to_uvmm(uvma), addr, range); |
b88baab8 DK |
187 | } |
188 | ||
189 | static int | |
190 | nouveau_uvma_map(struct nouveau_uvma *uvma, | |
191 | struct nouveau_mem *mem) | |
192 | { | |
193 | u64 addr = uvma->va.va.addr; | |
194 | u64 offset = uvma->va.gem.offset; | |
195 | u64 range = uvma->va.va.range; | |
196 | ||
a3540b46 | 197 | return nouveau_uvmm_vmm_map(to_uvmm(uvma), addr, range, |
b88baab8 DK |
198 | offset, uvma->kind, mem); |
199 | } | |
200 | ||
201 | static int | |
202 | nouveau_uvma_unmap(struct nouveau_uvma *uvma) | |
203 | { | |
204 | u64 addr = uvma->va.va.addr; | |
205 | u64 range = uvma->va.va.range; | |
206 | bool sparse = !!uvma->region; | |
207 | ||
208 | if (drm_gpuva_invalidated(&uvma->va)) | |
209 | return 0; | |
210 | ||
a3540b46 | 211 | return nouveau_uvmm_vmm_unmap(to_uvmm(uvma), addr, range, sparse); |
b88baab8 DK |
212 | } |
213 | ||
214 | static int | |
215 | nouveau_uvma_alloc(struct nouveau_uvma **puvma) | |
216 | { | |
217 | *puvma = kzalloc(sizeof(**puvma), GFP_KERNEL); | |
218 | if (!*puvma) | |
219 | return -ENOMEM; | |
220 | ||
221 | return 0; | |
222 | } | |
223 | ||
224 | static void | |
225 | nouveau_uvma_free(struct nouveau_uvma *uvma) | |
226 | { | |
227 | kfree(uvma); | |
228 | } | |
229 | ||
230 | static void | |
231 | nouveau_uvma_gem_get(struct nouveau_uvma *uvma) | |
232 | { | |
233 | drm_gem_object_get(uvma->va.gem.obj); | |
234 | } | |
235 | ||
236 | static void | |
237 | nouveau_uvma_gem_put(struct nouveau_uvma *uvma) | |
238 | { | |
239 | drm_gem_object_put(uvma->va.gem.obj); | |
240 | } | |
241 | ||
242 | static int | |
243 | nouveau_uvma_region_alloc(struct nouveau_uvma_region **preg) | |
244 | { | |
245 | *preg = kzalloc(sizeof(**preg), GFP_KERNEL); | |
246 | if (!*preg) | |
247 | return -ENOMEM; | |
248 | ||
249 | kref_init(&(*preg)->kref); | |
250 | ||
251 | return 0; | |
252 | } | |
253 | ||
254 | static void | |
255 | nouveau_uvma_region_free(struct kref *kref) | |
256 | { | |
257 | struct nouveau_uvma_region *reg = | |
258 | container_of(kref, struct nouveau_uvma_region, kref); | |
259 | ||
260 | kfree(reg); | |
261 | } | |
262 | ||
263 | static void | |
264 | nouveau_uvma_region_get(struct nouveau_uvma_region *reg) | |
265 | { | |
266 | kref_get(®->kref); | |
267 | } | |
268 | ||
269 | static void | |
270 | nouveau_uvma_region_put(struct nouveau_uvma_region *reg) | |
271 | { | |
272 | kref_put(®->kref, nouveau_uvma_region_free); | |
273 | } | |
274 | ||
275 | static int | |
276 | __nouveau_uvma_region_insert(struct nouveau_uvmm *uvmm, | |
277 | struct nouveau_uvma_region *reg) | |
278 | { | |
279 | u64 addr = reg->va.addr; | |
280 | u64 range = reg->va.range; | |
281 | u64 last = addr + range - 1; | |
282 | MA_STATE(mas, &uvmm->region_mt, addr, addr); | |
283 | ||
3cbc7721 | 284 | if (unlikely(mas_walk(&mas))) |
b88baab8 | 285 | return -EEXIST; |
b88baab8 | 286 | |
3cbc7721 | 287 | if (unlikely(mas.last < last)) |
b88baab8 | 288 | return -EEXIST; |
b88baab8 DK |
289 | |
290 | mas.index = addr; | |
291 | mas.last = last; | |
292 | ||
293 | mas_store_gfp(&mas, reg, GFP_KERNEL); | |
294 | ||
295 | reg->uvmm = uvmm; | |
296 | ||
297 | return 0; | |
298 | } | |
299 | ||
300 | static int | |
301 | nouveau_uvma_region_insert(struct nouveau_uvmm *uvmm, | |
302 | struct nouveau_uvma_region *reg, | |
303 | u64 addr, u64 range) | |
304 | { | |
305 | int ret; | |
306 | ||
307 | reg->uvmm = uvmm; | |
308 | reg->va.addr = addr; | |
309 | reg->va.range = range; | |
310 | ||
311 | ret = __nouveau_uvma_region_insert(uvmm, reg); | |
312 | if (ret) | |
313 | return ret; | |
314 | ||
315 | return 0; | |
316 | } | |
317 | ||
318 | static void | |
319 | nouveau_uvma_region_remove(struct nouveau_uvma_region *reg) | |
320 | { | |
321 | struct nouveau_uvmm *uvmm = reg->uvmm; | |
322 | MA_STATE(mas, &uvmm->region_mt, reg->va.addr, 0); | |
323 | ||
324 | mas_erase(&mas); | |
325 | } | |
326 | ||
327 | static int | |
328 | nouveau_uvma_region_create(struct nouveau_uvmm *uvmm, | |
329 | u64 addr, u64 range) | |
330 | { | |
331 | struct nouveau_uvma_region *reg; | |
332 | int ret; | |
333 | ||
78f54469 | 334 | if (!drm_gpuvm_interval_empty(&uvmm->base, addr, range)) |
b88baab8 DK |
335 | return -ENOSPC; |
336 | ||
337 | ret = nouveau_uvma_region_alloc(®); | |
338 | if (ret) | |
339 | return ret; | |
340 | ||
341 | ret = nouveau_uvma_region_insert(uvmm, reg, addr, range); | |
342 | if (ret) | |
343 | goto err_free_region; | |
344 | ||
345 | ret = nouveau_uvmm_vmm_sparse_ref(uvmm, addr, range); | |
346 | if (ret) | |
347 | goto err_region_remove; | |
348 | ||
349 | return 0; | |
350 | ||
351 | err_region_remove: | |
352 | nouveau_uvma_region_remove(reg); | |
353 | err_free_region: | |
354 | nouveau_uvma_region_put(reg); | |
355 | return ret; | |
356 | } | |
357 | ||
358 | static struct nouveau_uvma_region * | |
359 | nouveau_uvma_region_find_first(struct nouveau_uvmm *uvmm, | |
360 | u64 addr, u64 range) | |
361 | { | |
362 | MA_STATE(mas, &uvmm->region_mt, addr, 0); | |
363 | ||
364 | return mas_find(&mas, addr + range - 1); | |
365 | } | |
366 | ||
367 | static struct nouveau_uvma_region * | |
368 | nouveau_uvma_region_find(struct nouveau_uvmm *uvmm, | |
369 | u64 addr, u64 range) | |
370 | { | |
371 | struct nouveau_uvma_region *reg; | |
372 | ||
373 | reg = nouveau_uvma_region_find_first(uvmm, addr, range); | |
374 | if (!reg) | |
375 | return NULL; | |
376 | ||
377 | if (reg->va.addr != addr || | |
378 | reg->va.range != range) | |
379 | return NULL; | |
380 | ||
381 | return reg; | |
382 | } | |
383 | ||
384 | static bool | |
385 | nouveau_uvma_region_empty(struct nouveau_uvma_region *reg) | |
386 | { | |
387 | struct nouveau_uvmm *uvmm = reg->uvmm; | |
388 | ||
78f54469 | 389 | return drm_gpuvm_interval_empty(&uvmm->base, |
b88baab8 DK |
390 | reg->va.addr, |
391 | reg->va.range); | |
392 | } | |
393 | ||
394 | static int | |
395 | __nouveau_uvma_region_destroy(struct nouveau_uvma_region *reg) | |
396 | { | |
397 | struct nouveau_uvmm *uvmm = reg->uvmm; | |
398 | u64 addr = reg->va.addr; | |
399 | u64 range = reg->va.range; | |
400 | ||
401 | if (!nouveau_uvma_region_empty(reg)) | |
402 | return -EBUSY; | |
403 | ||
404 | nouveau_uvma_region_remove(reg); | |
405 | nouveau_uvmm_vmm_sparse_unref(uvmm, addr, range); | |
406 | nouveau_uvma_region_put(reg); | |
407 | ||
408 | return 0; | |
409 | } | |
410 | ||
411 | static int | |
412 | nouveau_uvma_region_destroy(struct nouveau_uvmm *uvmm, | |
413 | u64 addr, u64 range) | |
414 | { | |
415 | struct nouveau_uvma_region *reg; | |
416 | ||
417 | reg = nouveau_uvma_region_find(uvmm, addr, range); | |
418 | if (!reg) | |
419 | return -ENOENT; | |
420 | ||
421 | return __nouveau_uvma_region_destroy(reg); | |
422 | } | |
423 | ||
424 | static void | |
425 | nouveau_uvma_region_dirty(struct nouveau_uvma_region *reg) | |
426 | { | |
427 | ||
428 | init_completion(®->complete); | |
429 | reg->dirty = true; | |
430 | } | |
431 | ||
432 | static void | |
433 | nouveau_uvma_region_complete(struct nouveau_uvma_region *reg) | |
434 | { | |
435 | complete_all(®->complete); | |
436 | } | |
437 | ||
438 | static void | |
439 | op_map_prepare_unwind(struct nouveau_uvma *uvma) | |
440 | { | |
014f831a | 441 | struct drm_gpuva *va = &uvma->va; |
b88baab8 | 442 | nouveau_uvma_gem_put(uvma); |
014f831a | 443 | drm_gpuva_remove(va); |
b88baab8 DK |
444 | nouveau_uvma_free(uvma); |
445 | } | |
446 | ||
447 | static void | |
448 | op_unmap_prepare_unwind(struct drm_gpuva *va) | |
449 | { | |
f72c2db4 | 450 | drm_gpuva_insert(va->vm, va); |
b88baab8 DK |
451 | } |
452 | ||
453 | static void | |
454 | nouveau_uvmm_sm_prepare_unwind(struct nouveau_uvmm *uvmm, | |
455 | struct nouveau_uvma_prealloc *new, | |
456 | struct drm_gpuva_ops *ops, | |
457 | struct drm_gpuva_op *last, | |
458 | struct uvmm_map_args *args) | |
459 | { | |
460 | struct drm_gpuva_op *op = last; | |
461 | u64 vmm_get_start = args ? args->addr : 0; | |
462 | u64 vmm_get_end = args ? args->addr + args->range : 0; | |
463 | ||
464 | /* Unwind GPUVA space. */ | |
465 | drm_gpuva_for_each_op_from_reverse(op, ops) { | |
466 | switch (op->op) { | |
467 | case DRM_GPUVA_OP_MAP: | |
468 | op_map_prepare_unwind(new->map); | |
469 | break; | |
470 | case DRM_GPUVA_OP_REMAP: { | |
471 | struct drm_gpuva_op_remap *r = &op->remap; | |
014f831a | 472 | struct drm_gpuva *va = r->unmap->va; |
b88baab8 DK |
473 | |
474 | if (r->next) | |
475 | op_map_prepare_unwind(new->next); | |
476 | ||
477 | if (r->prev) | |
478 | op_map_prepare_unwind(new->prev); | |
479 | ||
014f831a | 480 | op_unmap_prepare_unwind(va); |
b88baab8 DK |
481 | break; |
482 | } | |
483 | case DRM_GPUVA_OP_UNMAP: | |
484 | op_unmap_prepare_unwind(op->unmap.va); | |
485 | break; | |
486 | default: | |
487 | break; | |
488 | } | |
489 | } | |
490 | ||
491 | /* Unmap operation don't allocate page tables, hence skip the following | |
492 | * page table unwind. | |
493 | */ | |
494 | if (!args) | |
495 | return; | |
496 | ||
497 | drm_gpuva_for_each_op(op, ops) { | |
498 | switch (op->op) { | |
499 | case DRM_GPUVA_OP_MAP: { | |
500 | u64 vmm_get_range = vmm_get_end - vmm_get_start; | |
501 | ||
502 | if (vmm_get_range) | |
503 | nouveau_uvmm_vmm_put(uvmm, vmm_get_start, | |
504 | vmm_get_range); | |
505 | break; | |
506 | } | |
507 | case DRM_GPUVA_OP_REMAP: { | |
508 | struct drm_gpuva_op_remap *r = &op->remap; | |
509 | struct drm_gpuva *va = r->unmap->va; | |
510 | u64 ustart = va->va.addr; | |
511 | u64 urange = va->va.range; | |
512 | u64 uend = ustart + urange; | |
513 | ||
514 | if (r->prev) | |
515 | vmm_get_start = uend; | |
516 | ||
517 | if (r->next) | |
518 | vmm_get_end = ustart; | |
519 | ||
520 | if (r->prev && r->next) | |
521 | vmm_get_start = vmm_get_end = 0; | |
522 | ||
523 | break; | |
524 | } | |
525 | case DRM_GPUVA_OP_UNMAP: { | |
526 | struct drm_gpuva_op_unmap *u = &op->unmap; | |
527 | struct drm_gpuva *va = u->va; | |
528 | u64 ustart = va->va.addr; | |
529 | u64 urange = va->va.range; | |
530 | u64 uend = ustart + urange; | |
531 | ||
532 | /* Nothing to do for mappings we merge with. */ | |
533 | if (uend == vmm_get_start || | |
534 | ustart == vmm_get_end) | |
535 | break; | |
536 | ||
537 | if (ustart > vmm_get_start) { | |
538 | u64 vmm_get_range = ustart - vmm_get_start; | |
539 | ||
540 | nouveau_uvmm_vmm_put(uvmm, vmm_get_start, | |
541 | vmm_get_range); | |
542 | } | |
543 | vmm_get_start = uend; | |
544 | break; | |
545 | } | |
546 | default: | |
547 | break; | |
548 | } | |
549 | ||
550 | if (op == last) | |
551 | break; | |
552 | } | |
553 | } | |
554 | ||
555 | static void | |
556 | nouveau_uvmm_sm_map_prepare_unwind(struct nouveau_uvmm *uvmm, | |
557 | struct nouveau_uvma_prealloc *new, | |
558 | struct drm_gpuva_ops *ops, | |
559 | u64 addr, u64 range) | |
560 | { | |
561 | struct drm_gpuva_op *last = drm_gpuva_last_op(ops); | |
562 | struct uvmm_map_args args = { | |
563 | .addr = addr, | |
564 | .range = range, | |
565 | }; | |
566 | ||
567 | nouveau_uvmm_sm_prepare_unwind(uvmm, new, ops, last, &args); | |
568 | } | |
569 | ||
570 | static void | |
571 | nouveau_uvmm_sm_unmap_prepare_unwind(struct nouveau_uvmm *uvmm, | |
572 | struct nouveau_uvma_prealloc *new, | |
573 | struct drm_gpuva_ops *ops) | |
574 | { | |
575 | struct drm_gpuva_op *last = drm_gpuva_last_op(ops); | |
576 | ||
577 | nouveau_uvmm_sm_prepare_unwind(uvmm, new, ops, last, NULL); | |
578 | } | |
579 | ||
580 | static int | |
581 | op_map_prepare(struct nouveau_uvmm *uvmm, | |
582 | struct nouveau_uvma **puvma, | |
583 | struct drm_gpuva_op_map *op, | |
584 | struct uvmm_map_args *args) | |
585 | { | |
586 | struct nouveau_uvma *uvma; | |
587 | int ret; | |
588 | ||
589 | ret = nouveau_uvma_alloc(&uvma); | |
590 | if (ret) | |
591 | return ret; | |
592 | ||
b88baab8 DK |
593 | uvma->region = args->region; |
594 | uvma->kind = args->kind; | |
595 | ||
78f54469 | 596 | drm_gpuva_map(&uvmm->base, &uvma->va, op); |
b88baab8 DK |
597 | |
598 | /* Keep a reference until this uvma is destroyed. */ | |
599 | nouveau_uvma_gem_get(uvma); | |
600 | ||
601 | *puvma = uvma; | |
602 | return 0; | |
603 | } | |
604 | ||
605 | static void | |
606 | op_unmap_prepare(struct drm_gpuva_op_unmap *u) | |
607 | { | |
608 | drm_gpuva_unmap(u); | |
609 | } | |
610 | ||
b101d084 YP |
611 | /* |
612 | * Note: @args should not be NULL when calling for a map operation. | |
613 | */ | |
b88baab8 DK |
614 | static int |
615 | nouveau_uvmm_sm_prepare(struct nouveau_uvmm *uvmm, | |
616 | struct nouveau_uvma_prealloc *new, | |
617 | struct drm_gpuva_ops *ops, | |
618 | struct uvmm_map_args *args) | |
619 | { | |
620 | struct drm_gpuva_op *op; | |
621 | u64 vmm_get_start = args ? args->addr : 0; | |
622 | u64 vmm_get_end = args ? args->addr + args->range : 0; | |
623 | int ret; | |
624 | ||
625 | drm_gpuva_for_each_op(op, ops) { | |
626 | switch (op->op) { | |
627 | case DRM_GPUVA_OP_MAP: { | |
628 | u64 vmm_get_range = vmm_get_end - vmm_get_start; | |
629 | ||
630 | ret = op_map_prepare(uvmm, &new->map, &op->map, args); | |
631 | if (ret) | |
632 | goto unwind; | |
633 | ||
b101d084 | 634 | if (vmm_get_range) { |
b88baab8 DK |
635 | ret = nouveau_uvmm_vmm_get(uvmm, vmm_get_start, |
636 | vmm_get_range); | |
637 | if (ret) { | |
638 | op_map_prepare_unwind(new->map); | |
639 | goto unwind; | |
640 | } | |
641 | } | |
014f831a | 642 | |
b88baab8 DK |
643 | break; |
644 | } | |
645 | case DRM_GPUVA_OP_REMAP: { | |
646 | struct drm_gpuva_op_remap *r = &op->remap; | |
647 | struct drm_gpuva *va = r->unmap->va; | |
648 | struct uvmm_map_args remap_args = { | |
649 | .kind = uvma_from_va(va)->kind, | |
b4e9fa93 | 650 | .region = uvma_from_va(va)->region, |
b88baab8 DK |
651 | }; |
652 | u64 ustart = va->va.addr; | |
653 | u64 urange = va->va.range; | |
654 | u64 uend = ustart + urange; | |
655 | ||
656 | op_unmap_prepare(r->unmap); | |
657 | ||
658 | if (r->prev) { | |
659 | ret = op_map_prepare(uvmm, &new->prev, r->prev, | |
660 | &remap_args); | |
661 | if (ret) | |
662 | goto unwind; | |
663 | ||
664 | if (args) | |
665 | vmm_get_start = uend; | |
666 | } | |
667 | ||
668 | if (r->next) { | |
669 | ret = op_map_prepare(uvmm, &new->next, r->next, | |
670 | &remap_args); | |
671 | if (ret) { | |
672 | if (r->prev) | |
673 | op_map_prepare_unwind(new->prev); | |
674 | goto unwind; | |
675 | } | |
676 | ||
677 | if (args) | |
678 | vmm_get_end = ustart; | |
679 | } | |
680 | ||
681 | if (args && (r->prev && r->next)) | |
682 | vmm_get_start = vmm_get_end = 0; | |
683 | ||
684 | break; | |
685 | } | |
686 | case DRM_GPUVA_OP_UNMAP: { | |
687 | struct drm_gpuva_op_unmap *u = &op->unmap; | |
688 | struct drm_gpuva *va = u->va; | |
689 | u64 ustart = va->va.addr; | |
690 | u64 urange = va->va.range; | |
691 | u64 uend = ustart + urange; | |
692 | ||
693 | op_unmap_prepare(u); | |
694 | ||
695 | if (!args) | |
696 | break; | |
697 | ||
698 | /* Nothing to do for mappings we merge with. */ | |
699 | if (uend == vmm_get_start || | |
700 | ustart == vmm_get_end) | |
701 | break; | |
702 | ||
703 | if (ustart > vmm_get_start) { | |
704 | u64 vmm_get_range = ustart - vmm_get_start; | |
705 | ||
706 | ret = nouveau_uvmm_vmm_get(uvmm, vmm_get_start, | |
707 | vmm_get_range); | |
708 | if (ret) { | |
709 | op_unmap_prepare_unwind(va); | |
710 | goto unwind; | |
711 | } | |
712 | } | |
713 | vmm_get_start = uend; | |
714 | ||
715 | break; | |
716 | } | |
717 | default: | |
718 | ret = -EINVAL; | |
719 | goto unwind; | |
720 | } | |
721 | } | |
722 | ||
723 | return 0; | |
724 | ||
725 | unwind: | |
726 | if (op != drm_gpuva_first_op(ops)) | |
727 | nouveau_uvmm_sm_prepare_unwind(uvmm, new, ops, | |
728 | drm_gpuva_prev_op(op), | |
729 | args); | |
730 | return ret; | |
731 | } | |
732 | ||
733 | static int | |
734 | nouveau_uvmm_sm_map_prepare(struct nouveau_uvmm *uvmm, | |
735 | struct nouveau_uvma_prealloc *new, | |
736 | struct nouveau_uvma_region *region, | |
737 | struct drm_gpuva_ops *ops, | |
738 | u64 addr, u64 range, u8 kind) | |
739 | { | |
740 | struct uvmm_map_args args = { | |
741 | .region = region, | |
742 | .addr = addr, | |
743 | .range = range, | |
744 | .kind = kind, | |
745 | }; | |
746 | ||
747 | return nouveau_uvmm_sm_prepare(uvmm, new, ops, &args); | |
748 | } | |
749 | ||
750 | static int | |
751 | nouveau_uvmm_sm_unmap_prepare(struct nouveau_uvmm *uvmm, | |
752 | struct nouveau_uvma_prealloc *new, | |
753 | struct drm_gpuva_ops *ops) | |
754 | { | |
755 | return nouveau_uvmm_sm_prepare(uvmm, new, ops, NULL); | |
756 | } | |
757 | ||
758 | static struct drm_gem_object * | |
759 | op_gem_obj(struct drm_gpuva_op *op) | |
760 | { | |
761 | switch (op->op) { | |
762 | case DRM_GPUVA_OP_MAP: | |
763 | return op->map.gem.obj; | |
764 | case DRM_GPUVA_OP_REMAP: | |
765 | /* Actually, we're looking for the GEMs backing remap.prev and | |
766 | * remap.next, but since this is a remap they're identical to | |
767 | * the GEM backing the unmapped GPUVA. | |
768 | */ | |
769 | return op->remap.unmap->va->gem.obj; | |
770 | case DRM_GPUVA_OP_UNMAP: | |
771 | return op->unmap.va->gem.obj; | |
772 | default: | |
773 | WARN(1, "Unknown operation.\n"); | |
774 | return NULL; | |
775 | } | |
776 | } | |
777 | ||
778 | static void | |
779 | op_map(struct nouveau_uvma *uvma) | |
780 | { | |
781 | struct nouveau_bo *nvbo = nouveau_gem_object(uvma->va.gem.obj); | |
782 | ||
783 | nouveau_uvma_map(uvma, nouveau_mem(nvbo->bo.resource)); | |
784 | } | |
785 | ||
786 | static void | |
787 | op_unmap(struct drm_gpuva_op_unmap *u) | |
788 | { | |
789 | struct drm_gpuva *va = u->va; | |
790 | struct nouveau_uvma *uvma = uvma_from_va(va); | |
791 | ||
792 | /* nouveau_uvma_unmap() does not unmap if backing BO is evicted. */ | |
793 | if (!u->keep) | |
794 | nouveau_uvma_unmap(uvma); | |
795 | } | |
796 | ||
797 | static void | |
798 | op_unmap_range(struct drm_gpuva_op_unmap *u, | |
799 | u64 addr, u64 range) | |
800 | { | |
801 | struct nouveau_uvma *uvma = uvma_from_va(u->va); | |
802 | bool sparse = !!uvma->region; | |
803 | ||
804 | if (!drm_gpuva_invalidated(u->va)) | |
a3540b46 | 805 | nouveau_uvmm_vmm_unmap(to_uvmm(uvma), addr, range, sparse); |
b88baab8 DK |
806 | } |
807 | ||
808 | static void | |
809 | op_remap(struct drm_gpuva_op_remap *r, | |
810 | struct nouveau_uvma_prealloc *new) | |
811 | { | |
812 | struct drm_gpuva_op_unmap *u = r->unmap; | |
813 | struct nouveau_uvma *uvma = uvma_from_va(u->va); | |
814 | u64 addr = uvma->va.va.addr; | |
be141849 | 815 | u64 end = uvma->va.va.addr + uvma->va.va.range; |
b88baab8 DK |
816 | |
817 | if (r->prev) | |
818 | addr = r->prev->va.addr + r->prev->va.range; | |
819 | ||
820 | if (r->next) | |
be141849 | 821 | end = r->next->va.addr; |
b88baab8 | 822 | |
be141849 | 823 | op_unmap_range(u, addr, end - addr); |
b88baab8 DK |
824 | } |
825 | ||
826 | static int | |
827 | nouveau_uvmm_sm(struct nouveau_uvmm *uvmm, | |
828 | struct nouveau_uvma_prealloc *new, | |
829 | struct drm_gpuva_ops *ops) | |
830 | { | |
831 | struct drm_gpuva_op *op; | |
832 | ||
833 | drm_gpuva_for_each_op(op, ops) { | |
834 | switch (op->op) { | |
835 | case DRM_GPUVA_OP_MAP: | |
836 | op_map(new->map); | |
837 | break; | |
838 | case DRM_GPUVA_OP_REMAP: | |
839 | op_remap(&op->remap, new); | |
840 | break; | |
841 | case DRM_GPUVA_OP_UNMAP: | |
842 | op_unmap(&op->unmap); | |
843 | break; | |
844 | default: | |
845 | break; | |
846 | } | |
847 | } | |
848 | ||
849 | return 0; | |
850 | } | |
851 | ||
852 | static int | |
853 | nouveau_uvmm_sm_map(struct nouveau_uvmm *uvmm, | |
854 | struct nouveau_uvma_prealloc *new, | |
855 | struct drm_gpuva_ops *ops) | |
856 | { | |
857 | return nouveau_uvmm_sm(uvmm, new, ops); | |
858 | } | |
859 | ||
860 | static int | |
861 | nouveau_uvmm_sm_unmap(struct nouveau_uvmm *uvmm, | |
862 | struct nouveau_uvma_prealloc *new, | |
863 | struct drm_gpuva_ops *ops) | |
864 | { | |
865 | return nouveau_uvmm_sm(uvmm, new, ops); | |
866 | } | |
867 | ||
868 | static void | |
869 | nouveau_uvmm_sm_cleanup(struct nouveau_uvmm *uvmm, | |
870 | struct nouveau_uvma_prealloc *new, | |
871 | struct drm_gpuva_ops *ops, bool unmap) | |
872 | { | |
873 | struct drm_gpuva_op *op; | |
874 | ||
875 | drm_gpuva_for_each_op(op, ops) { | |
876 | switch (op->op) { | |
877 | case DRM_GPUVA_OP_MAP: | |
878 | break; | |
879 | case DRM_GPUVA_OP_REMAP: { | |
880 | struct drm_gpuva_op_remap *r = &op->remap; | |
881 | struct drm_gpuva_op_map *p = r->prev; | |
882 | struct drm_gpuva_op_map *n = r->next; | |
883 | struct drm_gpuva *va = r->unmap->va; | |
884 | struct nouveau_uvma *uvma = uvma_from_va(va); | |
885 | ||
886 | if (unmap) { | |
887 | u64 addr = va->va.addr; | |
888 | u64 end = addr + va->va.range; | |
889 | ||
890 | if (p) | |
891 | addr = p->va.addr + p->va.range; | |
892 | ||
893 | if (n) | |
894 | end = n->va.addr; | |
895 | ||
896 | nouveau_uvmm_vmm_put(uvmm, addr, end - addr); | |
897 | } | |
898 | ||
899 | nouveau_uvma_gem_put(uvma); | |
900 | nouveau_uvma_free(uvma); | |
901 | break; | |
902 | } | |
903 | case DRM_GPUVA_OP_UNMAP: { | |
904 | struct drm_gpuva_op_unmap *u = &op->unmap; | |
905 | struct drm_gpuva *va = u->va; | |
906 | struct nouveau_uvma *uvma = uvma_from_va(va); | |
907 | ||
908 | if (unmap) | |
909 | nouveau_uvma_vmm_put(uvma); | |
910 | ||
911 | nouveau_uvma_gem_put(uvma); | |
912 | nouveau_uvma_free(uvma); | |
913 | break; | |
914 | } | |
915 | default: | |
916 | break; | |
917 | } | |
918 | } | |
919 | } | |
920 | ||
921 | static void | |
922 | nouveau_uvmm_sm_map_cleanup(struct nouveau_uvmm *uvmm, | |
923 | struct nouveau_uvma_prealloc *new, | |
924 | struct drm_gpuva_ops *ops) | |
925 | { | |
926 | nouveau_uvmm_sm_cleanup(uvmm, new, ops, false); | |
927 | } | |
928 | ||
929 | static void | |
930 | nouveau_uvmm_sm_unmap_cleanup(struct nouveau_uvmm *uvmm, | |
931 | struct nouveau_uvma_prealloc *new, | |
932 | struct drm_gpuva_ops *ops) | |
933 | { | |
934 | nouveau_uvmm_sm_cleanup(uvmm, new, ops, true); | |
935 | } | |
936 | ||
937 | static int | |
938 | nouveau_uvmm_validate_range(struct nouveau_uvmm *uvmm, u64 addr, u64 range) | |
939 | { | |
b88baab8 DK |
940 | if (addr & ~PAGE_MASK) |
941 | return -EINVAL; | |
942 | ||
943 | if (range & ~PAGE_MASK) | |
944 | return -EINVAL; | |
945 | ||
b41e297a | 946 | if (!drm_gpuvm_range_valid(&uvmm->base, addr, range)) |
b88baab8 DK |
947 | return -EINVAL; |
948 | ||
949 | return 0; | |
950 | } | |
951 | ||
952 | static int | |
953 | nouveau_uvmm_bind_job_alloc(struct nouveau_uvmm_bind_job **pjob) | |
954 | { | |
955 | *pjob = kzalloc(sizeof(**pjob), GFP_KERNEL); | |
956 | if (!*pjob) | |
957 | return -ENOMEM; | |
958 | ||
959 | kref_init(&(*pjob)->kref); | |
960 | ||
961 | return 0; | |
962 | } | |
963 | ||
964 | static void | |
965 | nouveau_uvmm_bind_job_free(struct kref *kref) | |
966 | { | |
967 | struct nouveau_uvmm_bind_job *job = | |
968 | container_of(kref, struct nouveau_uvmm_bind_job, kref); | |
5f03a507 DK |
969 | struct bind_job_op *op, *next; |
970 | ||
971 | list_for_each_op_safe(op, next, &job->ops) { | |
972 | list_del(&op->entry); | |
973 | kfree(op); | |
974 | } | |
b88baab8 DK |
975 | |
976 | nouveau_job_free(&job->base); | |
977 | kfree(job); | |
978 | } | |
979 | ||
980 | static void | |
981 | nouveau_uvmm_bind_job_get(struct nouveau_uvmm_bind_job *job) | |
982 | { | |
983 | kref_get(&job->kref); | |
984 | } | |
985 | ||
986 | static void | |
987 | nouveau_uvmm_bind_job_put(struct nouveau_uvmm_bind_job *job) | |
988 | { | |
989 | kref_put(&job->kref, nouveau_uvmm_bind_job_free); | |
990 | } | |
991 | ||
992 | static int | |
993 | bind_validate_op(struct nouveau_job *job, | |
994 | struct bind_job_op *op) | |
995 | { | |
996 | struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(job->cli); | |
997 | struct drm_gem_object *obj = op->gem.obj; | |
998 | ||
999 | if (op->op == OP_MAP) { | |
1000 | if (op->gem.offset & ~PAGE_MASK) | |
1001 | return -EINVAL; | |
1002 | ||
1003 | if (obj->size <= op->gem.offset) | |
1004 | return -EINVAL; | |
1005 | ||
1006 | if (op->va.range > (obj->size - op->gem.offset)) | |
1007 | return -EINVAL; | |
1008 | } | |
1009 | ||
1010 | return nouveau_uvmm_validate_range(uvmm, op->va.addr, op->va.range); | |
1011 | } | |
1012 | ||
1013 | static void | |
1014 | bind_validate_map_sparse(struct nouveau_job *job, u64 addr, u64 range) | |
1015 | { | |
5f03a507 DK |
1016 | struct nouveau_sched *sched = job->sched; |
1017 | struct nouveau_job *__job; | |
b88baab8 DK |
1018 | struct bind_job_op *op; |
1019 | u64 end = addr + range; | |
1020 | ||
1021 | again: | |
5f03a507 DK |
1022 | spin_lock(&sched->job.list.lock); |
1023 | list_for_each_entry(__job, &sched->job.list.head, entry) { | |
1024 | struct nouveau_uvmm_bind_job *bind_job = to_uvmm_bind_job(__job); | |
1025 | ||
b88baab8 DK |
1026 | list_for_each_op(op, &bind_job->ops) { |
1027 | if (op->op == OP_UNMAP) { | |
1028 | u64 op_addr = op->va.addr; | |
1029 | u64 op_end = op_addr + op->va.range; | |
1030 | ||
1031 | if (!(end <= op_addr || addr >= op_end)) { | |
1032 | nouveau_uvmm_bind_job_get(bind_job); | |
5f03a507 | 1033 | spin_unlock(&sched->job.list.lock); |
b88baab8 DK |
1034 | wait_for_completion(&bind_job->complete); |
1035 | nouveau_uvmm_bind_job_put(bind_job); | |
1036 | goto again; | |
1037 | } | |
1038 | } | |
1039 | } | |
1040 | } | |
5f03a507 | 1041 | spin_unlock(&sched->job.list.lock); |
b88baab8 DK |
1042 | } |
1043 | ||
1044 | static int | |
1045 | bind_validate_map_common(struct nouveau_job *job, u64 addr, u64 range, | |
1046 | bool sparse) | |
1047 | { | |
1048 | struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(job->cli); | |
1049 | struct nouveau_uvma_region *reg; | |
1050 | u64 reg_addr, reg_end; | |
1051 | u64 end = addr + range; | |
1052 | ||
1053 | again: | |
1054 | nouveau_uvmm_lock(uvmm); | |
1055 | reg = nouveau_uvma_region_find_first(uvmm, addr, range); | |
1056 | if (!reg) { | |
1057 | nouveau_uvmm_unlock(uvmm); | |
1058 | return 0; | |
1059 | } | |
1060 | ||
1061 | /* Generally, job submits are serialized, hence only | |
1062 | * dirty regions can be modified concurrently. | |
1063 | */ | |
1064 | if (reg->dirty) { | |
1065 | nouveau_uvma_region_get(reg); | |
1066 | nouveau_uvmm_unlock(uvmm); | |
1067 | wait_for_completion(®->complete); | |
1068 | nouveau_uvma_region_put(reg); | |
1069 | goto again; | |
1070 | } | |
1071 | nouveau_uvmm_unlock(uvmm); | |
1072 | ||
1073 | if (sparse) | |
1074 | return -ENOSPC; | |
1075 | ||
1076 | reg_addr = reg->va.addr; | |
1077 | reg_end = reg_addr + reg->va.range; | |
1078 | ||
1079 | /* Make sure the mapping is either outside of a | |
1080 | * region or fully enclosed by a region. | |
1081 | */ | |
1082 | if (reg_addr > addr || reg_end < end) | |
1083 | return -ENOSPC; | |
1084 | ||
1085 | return 0; | |
1086 | } | |
1087 | ||
1088 | static int | |
1089 | bind_validate_region(struct nouveau_job *job) | |
1090 | { | |
1091 | struct nouveau_uvmm_bind_job *bind_job = to_uvmm_bind_job(job); | |
1092 | struct bind_job_op *op; | |
1093 | int ret; | |
1094 | ||
1095 | list_for_each_op(op, &bind_job->ops) { | |
1096 | u64 op_addr = op->va.addr; | |
1097 | u64 op_range = op->va.range; | |
1098 | bool sparse = false; | |
1099 | ||
1100 | switch (op->op) { | |
1101 | case OP_MAP_SPARSE: | |
1102 | sparse = true; | |
1103 | bind_validate_map_sparse(job, op_addr, op_range); | |
1104 | fallthrough; | |
1105 | case OP_MAP: | |
1106 | ret = bind_validate_map_common(job, op_addr, op_range, | |
1107 | sparse); | |
1108 | if (ret) | |
1109 | return ret; | |
1110 | break; | |
1111 | default: | |
1112 | break; | |
1113 | } | |
1114 | } | |
1115 | ||
1116 | return 0; | |
1117 | } | |
1118 | ||
1119 | static void | |
94bc2249 | 1120 | bind_link_gpuvas(struct bind_job_op *bop) |
b88baab8 | 1121 | { |
94bc2249 DK |
1122 | struct nouveau_uvma_prealloc *new = &bop->new; |
1123 | struct drm_gpuvm_bo *vm_bo = bop->vm_bo; | |
1124 | struct drm_gpuva_ops *ops = bop->ops; | |
b88baab8 DK |
1125 | struct drm_gpuva_op *op; |
1126 | ||
1127 | drm_gpuva_for_each_op(op, ops) { | |
1128 | switch (op->op) { | |
1129 | case DRM_GPUVA_OP_MAP: | |
94bc2249 | 1130 | drm_gpuva_link(&new->map->va, vm_bo); |
b88baab8 | 1131 | break; |
94bc2249 DK |
1132 | case DRM_GPUVA_OP_REMAP: { |
1133 | struct drm_gpuva *va = op->remap.unmap->va; | |
1134 | ||
b88baab8 | 1135 | if (op->remap.prev) |
94bc2249 | 1136 | drm_gpuva_link(&new->prev->va, va->vm_bo); |
b88baab8 | 1137 | if (op->remap.next) |
94bc2249 DK |
1138 | drm_gpuva_link(&new->next->va, va->vm_bo); |
1139 | drm_gpuva_unlink(va); | |
b88baab8 | 1140 | break; |
94bc2249 | 1141 | } |
b88baab8 DK |
1142 | case DRM_GPUVA_OP_UNMAP: |
1143 | drm_gpuva_unlink(op->unmap.va); | |
1144 | break; | |
1145 | default: | |
1146 | break; | |
1147 | } | |
1148 | } | |
1149 | } | |
1150 | ||
1151 | static int | |
014f831a DK |
1152 | bind_lock_validate(struct nouveau_job *job, struct drm_exec *exec, |
1153 | unsigned int num_fences) | |
1154 | { | |
1155 | struct nouveau_uvmm_bind_job *bind_job = to_uvmm_bind_job(job); | |
1156 | struct bind_job_op *op; | |
1157 | int ret; | |
1158 | ||
1159 | list_for_each_op(op, &bind_job->ops) { | |
1160 | struct drm_gpuva_op *va_op; | |
1161 | ||
1162 | if (!op->ops) | |
1163 | continue; | |
1164 | ||
1165 | drm_gpuva_for_each_op(va_op, op->ops) { | |
1166 | struct drm_gem_object *obj = op_gem_obj(va_op); | |
1167 | ||
1168 | if (unlikely(!obj)) | |
1169 | continue; | |
1170 | ||
1171 | ret = drm_exec_prepare_obj(exec, obj, num_fences); | |
1172 | if (ret) | |
1173 | return ret; | |
1174 | ||
1175 | /* Don't validate GEMs backing mappings we're about to | |
1176 | * unmap, it's not worth the effort. | |
1177 | */ | |
1178 | if (va_op->op == DRM_GPUVA_OP_UNMAP) | |
1179 | continue; | |
1180 | ||
1181 | ret = nouveau_bo_validate(nouveau_gem_object(obj), | |
1182 | true, false); | |
1183 | if (ret) | |
1184 | return ret; | |
1185 | } | |
1186 | } | |
1187 | ||
1188 | return 0; | |
1189 | } | |
1190 | ||
1191 | static int | |
1192 | nouveau_uvmm_bind_job_submit(struct nouveau_job *job, | |
1193 | struct drm_gpuvm_exec *vme) | |
b88baab8 DK |
1194 | { |
1195 | struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(job->cli); | |
1196 | struct nouveau_uvmm_bind_job *bind_job = to_uvmm_bind_job(job); | |
014f831a | 1197 | struct drm_exec *exec = &vme->exec; |
b88baab8 DK |
1198 | struct bind_job_op *op; |
1199 | int ret; | |
1200 | ||
1201 | list_for_each_op(op, &bind_job->ops) { | |
1202 | if (op->op == OP_MAP) { | |
94bc2249 DK |
1203 | struct drm_gem_object *obj = op->gem.obj = |
1204 | drm_gem_object_lookup(job->file_priv, | |
1205 | op->gem.handle); | |
1206 | if (!obj) | |
b88baab8 | 1207 | return -ENOENT; |
94bc2249 DK |
1208 | |
1209 | dma_resv_lock(obj->resv, NULL); | |
1210 | op->vm_bo = drm_gpuvm_bo_obtain(&uvmm->base, obj); | |
1211 | dma_resv_unlock(obj->resv); | |
1212 | if (IS_ERR(op->vm_bo)) | |
1213 | return PTR_ERR(op->vm_bo); | |
014f831a DK |
1214 | |
1215 | drm_gpuvm_bo_extobj_add(op->vm_bo); | |
b88baab8 DK |
1216 | } |
1217 | ||
1218 | ret = bind_validate_op(job, op); | |
1219 | if (ret) | |
1220 | return ret; | |
1221 | } | |
1222 | ||
1223 | /* If a sparse region or mapping overlaps a dirty region, we need to | |
1224 | * wait for the region to complete the unbind process. This is due to | |
1225 | * how page table management is currently implemented. A future | |
1226 | * implementation might change this. | |
1227 | */ | |
1228 | ret = bind_validate_region(job); | |
1229 | if (ret) | |
1230 | return ret; | |
1231 | ||
1232 | /* Once we start modifying the GPU VA space we need to keep holding the | |
1233 | * uvmm lock until we can't fail anymore. This is due to the set of GPU | |
1234 | * VA space changes must appear atomically and we need to be able to | |
1235 | * unwind all GPU VA space changes on failure. | |
1236 | */ | |
1237 | nouveau_uvmm_lock(uvmm); | |
014f831a | 1238 | |
b88baab8 DK |
1239 | list_for_each_op(op, &bind_job->ops) { |
1240 | switch (op->op) { | |
1241 | case OP_MAP_SPARSE: | |
1242 | ret = nouveau_uvma_region_create(uvmm, | |
1243 | op->va.addr, | |
1244 | op->va.range); | |
1245 | if (ret) | |
1246 | goto unwind_continue; | |
1247 | ||
1248 | break; | |
1249 | case OP_UNMAP_SPARSE: | |
1250 | op->reg = nouveau_uvma_region_find(uvmm, op->va.addr, | |
1251 | op->va.range); | |
1252 | if (!op->reg || op->reg->dirty) { | |
1253 | ret = -ENOENT; | |
1254 | goto unwind_continue; | |
1255 | } | |
1256 | ||
78f54469 | 1257 | op->ops = drm_gpuvm_sm_unmap_ops_create(&uvmm->base, |
b88baab8 DK |
1258 | op->va.addr, |
1259 | op->va.range); | |
1260 | if (IS_ERR(op->ops)) { | |
1261 | ret = PTR_ERR(op->ops); | |
1262 | goto unwind_continue; | |
1263 | } | |
1264 | ||
1265 | ret = nouveau_uvmm_sm_unmap_prepare(uvmm, &op->new, | |
1266 | op->ops); | |
1267 | if (ret) { | |
78f54469 | 1268 | drm_gpuva_ops_free(&uvmm->base, op->ops); |
b88baab8 DK |
1269 | op->ops = NULL; |
1270 | op->reg = NULL; | |
1271 | goto unwind_continue; | |
1272 | } | |
1273 | ||
1274 | nouveau_uvma_region_dirty(op->reg); | |
1275 | ||
1276 | break; | |
1277 | case OP_MAP: { | |
1278 | struct nouveau_uvma_region *reg; | |
1279 | ||
1280 | reg = nouveau_uvma_region_find_first(uvmm, | |
1281 | op->va.addr, | |
1282 | op->va.range); | |
1283 | if (reg) { | |
1284 | u64 reg_addr = reg->va.addr; | |
1285 | u64 reg_end = reg_addr + reg->va.range; | |
1286 | u64 op_addr = op->va.addr; | |
1287 | u64 op_end = op_addr + op->va.range; | |
1288 | ||
1289 | if (unlikely(reg->dirty)) { | |
1290 | ret = -EINVAL; | |
1291 | goto unwind_continue; | |
1292 | } | |
1293 | ||
1294 | /* Make sure the mapping is either outside of a | |
1295 | * region or fully enclosed by a region. | |
1296 | */ | |
1297 | if (reg_addr > op_addr || reg_end < op_end) { | |
1298 | ret = -ENOSPC; | |
1299 | goto unwind_continue; | |
1300 | } | |
1301 | } | |
1302 | ||
78f54469 | 1303 | op->ops = drm_gpuvm_sm_map_ops_create(&uvmm->base, |
b88baab8 DK |
1304 | op->va.addr, |
1305 | op->va.range, | |
1306 | op->gem.obj, | |
1307 | op->gem.offset); | |
1308 | if (IS_ERR(op->ops)) { | |
1309 | ret = PTR_ERR(op->ops); | |
1310 | goto unwind_continue; | |
1311 | } | |
1312 | ||
1313 | ret = nouveau_uvmm_sm_map_prepare(uvmm, &op->new, | |
1314 | reg, op->ops, | |
1315 | op->va.addr, | |
1316 | op->va.range, | |
1317 | op->flags & 0xff); | |
1318 | if (ret) { | |
78f54469 | 1319 | drm_gpuva_ops_free(&uvmm->base, op->ops); |
b88baab8 DK |
1320 | op->ops = NULL; |
1321 | goto unwind_continue; | |
1322 | } | |
1323 | ||
1324 | break; | |
1325 | } | |
1326 | case OP_UNMAP: | |
78f54469 | 1327 | op->ops = drm_gpuvm_sm_unmap_ops_create(&uvmm->base, |
b88baab8 DK |
1328 | op->va.addr, |
1329 | op->va.range); | |
1330 | if (IS_ERR(op->ops)) { | |
1331 | ret = PTR_ERR(op->ops); | |
1332 | goto unwind_continue; | |
1333 | } | |
1334 | ||
1335 | ret = nouveau_uvmm_sm_unmap_prepare(uvmm, &op->new, | |
1336 | op->ops); | |
1337 | if (ret) { | |
78f54469 | 1338 | drm_gpuva_ops_free(&uvmm->base, op->ops); |
b88baab8 DK |
1339 | op->ops = NULL; |
1340 | goto unwind_continue; | |
1341 | } | |
1342 | ||
1343 | break; | |
1344 | default: | |
1345 | ret = -EINVAL; | |
1346 | goto unwind_continue; | |
1347 | } | |
1348 | } | |
1349 | ||
05d24935 | 1350 | drm_exec_init(exec, vme->flags, 0); |
b88baab8 | 1351 | drm_exec_until_all_locked(exec) { |
014f831a DK |
1352 | ret = bind_lock_validate(job, exec, vme->num_fences); |
1353 | drm_exec_retry_on_contention(exec); | |
1354 | if (ret) { | |
1355 | op = list_last_op(&bind_job->ops); | |
1356 | goto unwind; | |
b88baab8 DK |
1357 | } |
1358 | } | |
1359 | ||
1360 | /* Link and unlink GPUVAs while holding the dma_resv lock. | |
1361 | * | |
1362 | * As long as we validate() all GEMs and add fences to all GEMs DMA | |
1363 | * reservations backing map and remap operations we can be sure there | |
1364 | * won't be any concurrent (in)validations during job execution, hence | |
1365 | * we're safe to check drm_gpuva_invalidated() within the fence | |
1366 | * signalling critical path without holding a separate lock. | |
1367 | * | |
1368 | * GPUVAs about to be unmapped are safe as well, since they're unlinked | |
1369 | * already. | |
1370 | * | |
1371 | * GEMs from map and remap operations must be validated before linking | |
1372 | * their corresponding mappings to prevent the actual PT update to | |
1373 | * happen right away in validate() rather than asynchronously as | |
1374 | * intended. | |
1375 | * | |
1376 | * Note that after linking and unlinking the GPUVAs in this loop this | |
1377 | * function cannot fail anymore, hence there is no need for an unwind | |
1378 | * path. | |
1379 | */ | |
1380 | list_for_each_op(op, &bind_job->ops) { | |
1381 | switch (op->op) { | |
1382 | case OP_UNMAP_SPARSE: | |
1383 | case OP_MAP: | |
1384 | case OP_UNMAP: | |
94bc2249 | 1385 | bind_link_gpuvas(op); |
b88baab8 DK |
1386 | break; |
1387 | default: | |
1388 | break; | |
1389 | } | |
1390 | } | |
1391 | nouveau_uvmm_unlock(uvmm); | |
1392 | ||
b88baab8 DK |
1393 | return 0; |
1394 | ||
1395 | unwind_continue: | |
1396 | op = list_prev_op(op); | |
1397 | unwind: | |
1398 | list_for_each_op_from_reverse(op, &bind_job->ops) { | |
1399 | switch (op->op) { | |
1400 | case OP_MAP_SPARSE: | |
1401 | nouveau_uvma_region_destroy(uvmm, op->va.addr, | |
1402 | op->va.range); | |
1403 | break; | |
1404 | case OP_UNMAP_SPARSE: | |
1405 | __nouveau_uvma_region_insert(uvmm, op->reg); | |
1406 | nouveau_uvmm_sm_unmap_prepare_unwind(uvmm, &op->new, | |
1407 | op->ops); | |
1408 | break; | |
1409 | case OP_MAP: | |
1410 | nouveau_uvmm_sm_map_prepare_unwind(uvmm, &op->new, | |
1411 | op->ops, | |
1412 | op->va.addr, | |
1413 | op->va.range); | |
1414 | break; | |
1415 | case OP_UNMAP: | |
1416 | nouveau_uvmm_sm_unmap_prepare_unwind(uvmm, &op->new, | |
1417 | op->ops); | |
1418 | break; | |
1419 | } | |
1420 | ||
78f54469 | 1421 | drm_gpuva_ops_free(&uvmm->base, op->ops); |
b88baab8 DK |
1422 | op->ops = NULL; |
1423 | op->reg = NULL; | |
1424 | } | |
1425 | ||
1426 | nouveau_uvmm_unlock(uvmm); | |
014f831a | 1427 | drm_gpuvm_exec_unlock(vme); |
b88baab8 DK |
1428 | return ret; |
1429 | } | |
1430 | ||
1431 | static void | |
014f831a DK |
1432 | nouveau_uvmm_bind_job_armed_submit(struct nouveau_job *job, |
1433 | struct drm_gpuvm_exec *vme) | |
b88baab8 | 1434 | { |
014f831a DK |
1435 | drm_gpuvm_exec_resv_add_fence(vme, job->done_fence, |
1436 | job->resv_usage, job->resv_usage); | |
1437 | drm_gpuvm_exec_unlock(vme); | |
b88baab8 DK |
1438 | } |
1439 | ||
1440 | static struct dma_fence * | |
1441 | nouveau_uvmm_bind_job_run(struct nouveau_job *job) | |
1442 | { | |
1443 | struct nouveau_uvmm_bind_job *bind_job = to_uvmm_bind_job(job); | |
1444 | struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(job->cli); | |
1445 | struct bind_job_op *op; | |
1446 | int ret = 0; | |
1447 | ||
1448 | list_for_each_op(op, &bind_job->ops) { | |
1449 | switch (op->op) { | |
1450 | case OP_MAP_SPARSE: | |
1451 | /* noop */ | |
1452 | break; | |
1453 | case OP_MAP: | |
1454 | ret = nouveau_uvmm_sm_map(uvmm, &op->new, op->ops); | |
1455 | if (ret) | |
1456 | goto out; | |
1457 | break; | |
1458 | case OP_UNMAP_SPARSE: | |
1459 | fallthrough; | |
1460 | case OP_UNMAP: | |
1461 | ret = nouveau_uvmm_sm_unmap(uvmm, &op->new, op->ops); | |
1462 | if (ret) | |
1463 | goto out; | |
1464 | break; | |
1465 | } | |
1466 | } | |
1467 | ||
1468 | out: | |
1469 | if (ret) | |
1470 | NV_PRINTK(err, job->cli, "bind job failed: %d\n", ret); | |
1471 | return ERR_PTR(ret); | |
1472 | } | |
1473 | ||
1474 | static void | |
5f03a507 | 1475 | nouveau_uvmm_bind_job_cleanup(struct nouveau_job *job) |
b88baab8 | 1476 | { |
5f03a507 | 1477 | struct nouveau_uvmm_bind_job *bind_job = to_uvmm_bind_job(job); |
b88baab8 | 1478 | struct nouveau_uvmm *uvmm = nouveau_cli_uvmm(job->cli); |
5f03a507 | 1479 | struct bind_job_op *op; |
b88baab8 DK |
1480 | |
1481 | list_for_each_op(op, &bind_job->ops) { | |
1482 | struct drm_gem_object *obj = op->gem.obj; | |
1483 | ||
1484 | /* When nouveau_uvmm_bind_job_submit() fails op->ops and op->reg | |
1485 | * will be NULL, hence skip the cleanup. | |
1486 | */ | |
1487 | switch (op->op) { | |
1488 | case OP_MAP_SPARSE: | |
1489 | /* noop */ | |
1490 | break; | |
1491 | case OP_UNMAP_SPARSE: | |
1492 | if (!IS_ERR_OR_NULL(op->ops)) | |
1493 | nouveau_uvmm_sm_unmap_cleanup(uvmm, &op->new, | |
1494 | op->ops); | |
1495 | ||
1496 | if (op->reg) { | |
1497 | nouveau_uvma_region_sparse_unref(op->reg); | |
1498 | nouveau_uvmm_lock(uvmm); | |
1499 | nouveau_uvma_region_remove(op->reg); | |
1500 | nouveau_uvmm_unlock(uvmm); | |
1501 | nouveau_uvma_region_complete(op->reg); | |
1502 | nouveau_uvma_region_put(op->reg); | |
1503 | } | |
1504 | ||
1505 | break; | |
1506 | case OP_MAP: | |
1507 | if (!IS_ERR_OR_NULL(op->ops)) | |
1508 | nouveau_uvmm_sm_map_cleanup(uvmm, &op->new, | |
1509 | op->ops); | |
1510 | break; | |
1511 | case OP_UNMAP: | |
1512 | if (!IS_ERR_OR_NULL(op->ops)) | |
1513 | nouveau_uvmm_sm_unmap_cleanup(uvmm, &op->new, | |
1514 | op->ops); | |
1515 | break; | |
1516 | } | |
1517 | ||
1518 | if (!IS_ERR_OR_NULL(op->ops)) | |
78f54469 | 1519 | drm_gpuva_ops_free(&uvmm->base, op->ops); |
b88baab8 | 1520 | |
94bc2249 DK |
1521 | if (!IS_ERR_OR_NULL(op->vm_bo)) { |
1522 | dma_resv_lock(obj->resv, NULL); | |
1523 | drm_gpuvm_bo_put(op->vm_bo); | |
1524 | dma_resv_unlock(obj->resv); | |
1525 | } | |
1526 | ||
b88baab8 DK |
1527 | if (obj) |
1528 | drm_gem_object_put(obj); | |
1529 | } | |
1530 | ||
5f03a507 | 1531 | nouveau_job_done(job); |
b88baab8 | 1532 | complete_all(&bind_job->complete); |
b88baab8 DK |
1533 | |
1534 | nouveau_uvmm_bind_job_put(bind_job); | |
1535 | } | |
1536 | ||
b88baab8 DK |
1537 | static struct nouveau_job_ops nouveau_bind_job_ops = { |
1538 | .submit = nouveau_uvmm_bind_job_submit, | |
1539 | .armed_submit = nouveau_uvmm_bind_job_armed_submit, | |
1540 | .run = nouveau_uvmm_bind_job_run, | |
5f03a507 | 1541 | .free = nouveau_uvmm_bind_job_cleanup, |
b88baab8 DK |
1542 | }; |
1543 | ||
1544 | static int | |
1545 | bind_job_op_from_uop(struct bind_job_op **pop, | |
1546 | struct drm_nouveau_vm_bind_op *uop) | |
1547 | { | |
1548 | struct bind_job_op *op; | |
1549 | ||
1550 | op = *pop = kzalloc(sizeof(*op), GFP_KERNEL); | |
1551 | if (!op) | |
1552 | return -ENOMEM; | |
1553 | ||
1554 | switch (uop->op) { | |
1555 | case OP_MAP: | |
1556 | op->op = uop->flags & DRM_NOUVEAU_VM_BIND_SPARSE ? | |
1557 | OP_MAP_SPARSE : OP_MAP; | |
1558 | break; | |
1559 | case OP_UNMAP: | |
1560 | op->op = uop->flags & DRM_NOUVEAU_VM_BIND_SPARSE ? | |
1561 | OP_UNMAP_SPARSE : OP_UNMAP; | |
1562 | break; | |
1563 | default: | |
1564 | op->op = uop->op; | |
1565 | break; | |
1566 | } | |
1567 | ||
1568 | op->flags = uop->flags; | |
1569 | op->va.addr = uop->addr; | |
1570 | op->va.range = uop->range; | |
1571 | op->gem.handle = uop->handle; | |
1572 | op->gem.offset = uop->bo_offset; | |
1573 | ||
1574 | return 0; | |
1575 | } | |
1576 | ||
1577 | static void | |
1578 | bind_job_ops_free(struct list_head *ops) | |
1579 | { | |
1580 | struct bind_job_op *op, *next; | |
1581 | ||
1582 | list_for_each_op_safe(op, next, ops) { | |
1583 | list_del(&op->entry); | |
1584 | kfree(op); | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | static int | |
1589 | nouveau_uvmm_bind_job_init(struct nouveau_uvmm_bind_job **pjob, | |
1590 | struct nouveau_uvmm_bind_job_args *__args) | |
1591 | { | |
1592 | struct nouveau_uvmm_bind_job *job; | |
1593 | struct nouveau_job_args args = {}; | |
1594 | struct bind_job_op *op; | |
1595 | int i, ret; | |
1596 | ||
1597 | ret = nouveau_uvmm_bind_job_alloc(&job); | |
1598 | if (ret) | |
1599 | return ret; | |
1600 | ||
1601 | INIT_LIST_HEAD(&job->ops); | |
b88baab8 DK |
1602 | |
1603 | for (i = 0; i < __args->op.count; i++) { | |
1604 | ret = bind_job_op_from_uop(&op, &__args->op.s[i]); | |
1605 | if (ret) | |
1606 | goto err_free; | |
1607 | ||
1608 | list_add_tail(&op->entry, &job->ops); | |
1609 | } | |
1610 | ||
1611 | init_completion(&job->complete); | |
b88baab8 | 1612 | |
b88baab8 DK |
1613 | args.file_priv = __args->file_priv; |
1614 | ||
46990918 DK |
1615 | args.sched = __args->sched; |
1616 | args.credits = 1; | |
1617 | ||
b88baab8 DK |
1618 | args.in_sync.count = __args->in_sync.count; |
1619 | args.in_sync.s = __args->in_sync.s; | |
1620 | ||
1621 | args.out_sync.count = __args->out_sync.count; | |
1622 | args.out_sync.s = __args->out_sync.s; | |
1623 | ||
1624 | args.sync = !(__args->flags & DRM_NOUVEAU_VM_BIND_RUN_ASYNC); | |
1625 | args.ops = &nouveau_bind_job_ops; | |
1626 | args.resv_usage = DMA_RESV_USAGE_BOOKKEEP; | |
1627 | ||
1628 | ret = nouveau_job_init(&job->base, &args); | |
1629 | if (ret) | |
1630 | goto err_free; | |
1631 | ||
1632 | *pjob = job; | |
1633 | return 0; | |
1634 | ||
1635 | err_free: | |
1636 | bind_job_ops_free(&job->ops); | |
1637 | kfree(job); | |
1638 | *pjob = NULL; | |
1639 | ||
1640 | return ret; | |
1641 | } | |
1642 | ||
b88baab8 DK |
1643 | static int |
1644 | nouveau_uvmm_vm_bind(struct nouveau_uvmm_bind_job_args *args) | |
1645 | { | |
1646 | struct nouveau_uvmm_bind_job *job; | |
1647 | int ret; | |
1648 | ||
1649 | ret = nouveau_uvmm_bind_job_init(&job, args); | |
1650 | if (ret) | |
1651 | return ret; | |
1652 | ||
1653 | ret = nouveau_job_submit(&job->base); | |
1654 | if (ret) | |
1655 | goto err_job_fini; | |
1656 | ||
1657 | return 0; | |
1658 | ||
1659 | err_job_fini: | |
1660 | nouveau_job_fini(&job->base); | |
1661 | return ret; | |
1662 | } | |
1663 | ||
1664 | static int | |
1665 | nouveau_uvmm_vm_bind_ucopy(struct nouveau_uvmm_bind_job_args *args, | |
e39701e3 | 1666 | struct drm_nouveau_vm_bind *req) |
b88baab8 DK |
1667 | { |
1668 | struct drm_nouveau_sync **s; | |
1669 | u32 inc = req->wait_count; | |
1670 | u64 ins = req->wait_ptr; | |
1671 | u32 outc = req->sig_count; | |
1672 | u64 outs = req->sig_ptr; | |
1673 | u32 opc = req->op_count; | |
1674 | u64 ops = req->op_ptr; | |
1675 | int ret; | |
1676 | ||
1677 | args->flags = req->flags; | |
1678 | ||
1679 | if (opc) { | |
1680 | args->op.count = opc; | |
1681 | args->op.s = u_memcpya(ops, opc, | |
1682 | sizeof(*args->op.s)); | |
1683 | if (IS_ERR(args->op.s)) | |
1684 | return PTR_ERR(args->op.s); | |
1685 | } | |
1686 | ||
1687 | if (inc) { | |
1688 | s = &args->in_sync.s; | |
1689 | ||
1690 | args->in_sync.count = inc; | |
1691 | *s = u_memcpya(ins, inc, sizeof(**s)); | |
1692 | if (IS_ERR(*s)) { | |
1693 | ret = PTR_ERR(*s); | |
1694 | goto err_free_ops; | |
1695 | } | |
1696 | } | |
1697 | ||
1698 | if (outc) { | |
1699 | s = &args->out_sync.s; | |
1700 | ||
1701 | args->out_sync.count = outc; | |
1702 | *s = u_memcpya(outs, outc, sizeof(**s)); | |
1703 | if (IS_ERR(*s)) { | |
1704 | ret = PTR_ERR(*s); | |
1705 | goto err_free_ins; | |
1706 | } | |
1707 | } | |
1708 | ||
1709 | return 0; | |
1710 | ||
1711 | err_free_ops: | |
1712 | u_free(args->op.s); | |
1713 | err_free_ins: | |
1714 | u_free(args->in_sync.s); | |
1715 | return ret; | |
1716 | } | |
1717 | ||
1718 | static void | |
1719 | nouveau_uvmm_vm_bind_ufree(struct nouveau_uvmm_bind_job_args *args) | |
1720 | { | |
1721 | u_free(args->op.s); | |
1722 | u_free(args->in_sync.s); | |
1723 | u_free(args->out_sync.s); | |
1724 | } | |
1725 | ||
1726 | int | |
1727 | nouveau_uvmm_ioctl_vm_bind(struct drm_device *dev, | |
e39701e3 | 1728 | void *data, |
b88baab8 DK |
1729 | struct drm_file *file_priv) |
1730 | { | |
1731 | struct nouveau_cli *cli = nouveau_cli(file_priv); | |
1732 | struct nouveau_uvmm_bind_job_args args = {}; | |
e39701e3 | 1733 | struct drm_nouveau_vm_bind *req = data; |
b88baab8 DK |
1734 | int ret = 0; |
1735 | ||
1736 | if (unlikely(!nouveau_cli_uvmm_locked(cli))) | |
1737 | return -ENOSYS; | |
1738 | ||
1739 | ret = nouveau_uvmm_vm_bind_ucopy(&args, req); | |
1740 | if (ret) | |
1741 | return ret; | |
1742 | ||
9a0c32d6 | 1743 | args.sched = cli->sched; |
b88baab8 DK |
1744 | args.file_priv = file_priv; |
1745 | ||
1746 | ret = nouveau_uvmm_vm_bind(&args); | |
1747 | if (ret) | |
1748 | goto out_free_args; | |
1749 | ||
1750 | out_free_args: | |
1751 | nouveau_uvmm_vm_bind_ufree(&args); | |
1752 | return ret; | |
1753 | } | |
1754 | ||
1755 | void | |
1756 | nouveau_uvmm_bo_map_all(struct nouveau_bo *nvbo, struct nouveau_mem *mem) | |
1757 | { | |
1758 | struct drm_gem_object *obj = &nvbo->bo.base; | |
94bc2249 | 1759 | struct drm_gpuvm_bo *vm_bo; |
b88baab8 DK |
1760 | struct drm_gpuva *va; |
1761 | ||
1762 | dma_resv_assert_held(obj->resv); | |
1763 | ||
94bc2249 DK |
1764 | drm_gem_for_each_gpuvm_bo(vm_bo, obj) { |
1765 | drm_gpuvm_bo_for_each_va(va, vm_bo) { | |
1766 | struct nouveau_uvma *uvma = uvma_from_va(va); | |
b88baab8 | 1767 | |
94bc2249 DK |
1768 | nouveau_uvma_map(uvma, mem); |
1769 | drm_gpuva_invalidate(va, false); | |
1770 | } | |
b88baab8 DK |
1771 | } |
1772 | } | |
1773 | ||
1774 | void | |
1775 | nouveau_uvmm_bo_unmap_all(struct nouveau_bo *nvbo) | |
1776 | { | |
1777 | struct drm_gem_object *obj = &nvbo->bo.base; | |
94bc2249 | 1778 | struct drm_gpuvm_bo *vm_bo; |
b88baab8 DK |
1779 | struct drm_gpuva *va; |
1780 | ||
1781 | dma_resv_assert_held(obj->resv); | |
1782 | ||
94bc2249 DK |
1783 | drm_gem_for_each_gpuvm_bo(vm_bo, obj) { |
1784 | drm_gpuvm_bo_for_each_va(va, vm_bo) { | |
1785 | struct nouveau_uvma *uvma = uvma_from_va(va); | |
b88baab8 | 1786 | |
94bc2249 DK |
1787 | nouveau_uvma_unmap(uvma); |
1788 | drm_gpuva_invalidate(va, true); | |
1789 | } | |
b88baab8 DK |
1790 | } |
1791 | } | |
1792 | ||
8af72338 DK |
1793 | static void |
1794 | nouveau_uvmm_free(struct drm_gpuvm *gpuvm) | |
1795 | { | |
1796 | struct nouveau_uvmm *uvmm = uvmm_from_gpuvm(gpuvm); | |
1797 | ||
1798 | kfree(uvmm); | |
1799 | } | |
1800 | ||
014f831a DK |
1801 | static int |
1802 | nouveau_uvmm_bo_validate(struct drm_gpuvm_bo *vm_bo, struct drm_exec *exec) | |
1803 | { | |
1804 | struct nouveau_bo *nvbo = nouveau_gem_object(vm_bo->obj); | |
1805 | ||
1806 | return nouveau_bo_validate(nvbo, true, false); | |
1807 | } | |
1808 | ||
8af72338 DK |
1809 | static const struct drm_gpuvm_ops gpuvm_ops = { |
1810 | .vm_free = nouveau_uvmm_free, | |
014f831a | 1811 | .vm_bo_validate = nouveau_uvmm_bo_validate, |
8af72338 DK |
1812 | }; |
1813 | ||
b88baab8 | 1814 | int |
266f7618 DK |
1815 | nouveau_uvmm_ioctl_vm_init(struct drm_device *dev, |
1816 | void *data, | |
1817 | struct drm_file *file_priv) | |
b88baab8 | 1818 | { |
266f7618 DK |
1819 | struct nouveau_uvmm *uvmm; |
1820 | struct nouveau_cli *cli = nouveau_cli(file_priv); | |
546ca4d3 | 1821 | struct drm_device *drm = cli->drm->dev; |
bbe84580 | 1822 | struct drm_gem_object *r_obj; |
266f7618 DK |
1823 | struct drm_nouveau_vm_init *init = data; |
1824 | u64 kernel_managed_end; | |
bbe84580 | 1825 | int ret; |
b88baab8 | 1826 | |
266f7618 DK |
1827 | if (check_add_overflow(init->kernel_managed_addr, |
1828 | init->kernel_managed_size, | |
1829 | &kernel_managed_end)) | |
1830 | return -EINVAL; | |
1831 | ||
1832 | if (kernel_managed_end > NOUVEAU_VA_SPACE_END) | |
1833 | return -EINVAL; | |
b88baab8 DK |
1834 | |
1835 | mutex_lock(&cli->mutex); | |
1836 | ||
1837 | if (unlikely(cli->uvmm.disabled)) { | |
1838 | ret = -ENOSYS; | |
1839 | goto out_unlock; | |
1840 | } | |
1841 | ||
266f7618 DK |
1842 | uvmm = kzalloc(sizeof(*uvmm), GFP_KERNEL); |
1843 | if (!uvmm) { | |
1844 | ret = -ENOMEM; | |
b88baab8 DK |
1845 | goto out_unlock; |
1846 | } | |
1847 | ||
bbe84580 DK |
1848 | r_obj = drm_gpuvm_resv_object_alloc(drm); |
1849 | if (!r_obj) { | |
266f7618 | 1850 | kfree(uvmm); |
bbe84580 DK |
1851 | ret = -ENOMEM; |
1852 | goto out_unlock; | |
1853 | } | |
1854 | ||
266f7618 DK |
1855 | mutex_init(&uvmm->mutex); |
1856 | mt_init_flags(&uvmm->region_mt, MT_FLAGS_LOCK_EXTERN); | |
1857 | mt_set_external_lock(&uvmm->region_mt, &uvmm->mutex); | |
1858 | ||
809ef191 | 1859 | drm_gpuvm_init(&uvmm->base, cli->name, 0, drm, r_obj, |
f72c2db4 DK |
1860 | NOUVEAU_VA_SPACE_START, |
1861 | NOUVEAU_VA_SPACE_END, | |
266f7618 DK |
1862 | init->kernel_managed_addr, |
1863 | init->kernel_managed_size, | |
8af72338 | 1864 | &gpuvm_ops); |
bbe84580 DK |
1865 | /* GPUVM takes care from here on. */ |
1866 | drm_gem_object_put(r_obj); | |
b88baab8 DK |
1867 | |
1868 | ret = nvif_vmm_ctor(&cli->mmu, "uvmm", | |
1869 | cli->vmm.vmm.object.oclass, RAW, | |
266f7618 DK |
1870 | init->kernel_managed_addr, |
1871 | init->kernel_managed_size, | |
1872 | NULL, 0, &uvmm->vmm.vmm); | |
b88baab8 | 1873 | if (ret) |
61184114 | 1874 | goto out_gpuvm_fini; |
b88baab8 | 1875 | |
266f7618 DK |
1876 | uvmm->vmm.cli = cli; |
1877 | cli->uvmm.ptr = uvmm; | |
b88baab8 DK |
1878 | mutex_unlock(&cli->mutex); |
1879 | ||
1880 | return 0; | |
1881 | ||
61184114 | 1882 | out_gpuvm_fini: |
8af72338 | 1883 | drm_gpuvm_put(&uvmm->base); |
b88baab8 DK |
1884 | out_unlock: |
1885 | mutex_unlock(&cli->mutex); | |
1886 | return ret; | |
1887 | } | |
1888 | ||
1889 | void | |
1890 | nouveau_uvmm_fini(struct nouveau_uvmm *uvmm) | |
1891 | { | |
1892 | MA_STATE(mas, &uvmm->region_mt, 0, 0); | |
1893 | struct nouveau_uvma_region *reg; | |
1894 | struct nouveau_cli *cli = uvmm->vmm.cli; | |
b88baab8 DK |
1895 | struct drm_gpuva *va, *next; |
1896 | ||
b88baab8 | 1897 | nouveau_uvmm_lock(uvmm); |
78f54469 | 1898 | drm_gpuvm_for_each_va_safe(va, next, &uvmm->base) { |
b88baab8 DK |
1899 | struct nouveau_uvma *uvma = uvma_from_va(va); |
1900 | struct drm_gem_object *obj = va->gem.obj; | |
1901 | ||
78f54469 | 1902 | if (unlikely(va == &uvmm->base.kernel_alloc_node)) |
b88baab8 DK |
1903 | continue; |
1904 | ||
1905 | drm_gpuva_remove(va); | |
1906 | ||
1907 | dma_resv_lock(obj->resv, NULL); | |
1908 | drm_gpuva_unlink(va); | |
1909 | dma_resv_unlock(obj->resv); | |
1910 | ||
1911 | nouveau_uvma_unmap(uvma); | |
1912 | nouveau_uvma_vmm_put(uvma); | |
1913 | ||
1914 | nouveau_uvma_gem_put(uvma); | |
1915 | nouveau_uvma_free(uvma); | |
1916 | } | |
1917 | ||
1918 | mas_for_each(&mas, reg, ULONG_MAX) { | |
1919 | mas_erase(&mas); | |
1920 | nouveau_uvma_region_sparse_unref(reg); | |
1921 | nouveau_uvma_region_put(reg); | |
1922 | } | |
1923 | ||
1924 | WARN(!mtree_empty(&uvmm->region_mt), | |
1925 | "nouveau_uvma_region tree not empty, potentially leaking memory."); | |
1926 | __mt_destroy(&uvmm->region_mt); | |
1927 | nouveau_uvmm_unlock(uvmm); | |
1928 | ||
1929 | mutex_lock(&cli->mutex); | |
1930 | nouveau_vmm_fini(&uvmm->vmm); | |
8af72338 | 1931 | drm_gpuvm_put(&uvmm->base); |
b88baab8 | 1932 | mutex_unlock(&cli->mutex); |
b88baab8 | 1933 | } |