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1/*
2 * Copyright 2007 Dave Airlied
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * 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 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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/*
25 * Authors: Dave Airlied <airlied@linux.ie>
26 * Ben Skeggs <darktama@iinet.net.au>
27 * Jeremy Kolb <jkolb@brandeis.edu>
28 */
29
30#include <linux/dma-mapping.h>
31#include <linux/swiotlb.h>
32
33#include "nouveau_drv.h"
34#include "nouveau_dma.h"
35#include "nouveau_fence.h"
36
37#include "nouveau_bo.h"
38#include "nouveau_ttm.h"
39#include "nouveau_gem.h"
40#include "nouveau_mem.h"
41#include "nouveau_vmm.h"
42
43#include <nvif/class.h>
44#include <nvif/if500b.h>
45#include <nvif/if900b.h>
46
47/*
48 * NV10-NV40 tiling helpers
49 */
50
51static void
52nv10_bo_update_tile_region(struct drm_device *dev, struct nouveau_drm_tile *reg,
53 u32 addr, u32 size, u32 pitch, u32 flags)
54{
55 struct nouveau_drm *drm = nouveau_drm(dev);
56 int i = reg - drm->tile.reg;
57 struct nvkm_fb *fb = nvxx_fb(&drm->client.device);
58 struct nvkm_fb_tile *tile = &fb->tile.region[i];
59
60 nouveau_fence_unref(®->fence);
61
62 if (tile->pitch)
63 nvkm_fb_tile_fini(fb, i, tile);
64
65 if (pitch)
66 nvkm_fb_tile_init(fb, i, addr, size, pitch, flags, tile);
67
68 nvkm_fb_tile_prog(fb, i, tile);
69}
70
71static struct nouveau_drm_tile *
72nv10_bo_get_tile_region(struct drm_device *dev, int i)
73{
74 struct nouveau_drm *drm = nouveau_drm(dev);
75 struct nouveau_drm_tile *tile = &drm->tile.reg[i];
76
77 spin_lock(&drm->tile.lock);
78
79 if (!tile->used &&
80 (!tile->fence || nouveau_fence_done(tile->fence)))
81 tile->used = true;
82 else
83 tile = NULL;
84
85 spin_unlock(&drm->tile.lock);
86 return tile;
87}
88
89static void
90nv10_bo_put_tile_region(struct drm_device *dev, struct nouveau_drm_tile *tile,
91 struct dma_fence *fence)
92{
93 struct nouveau_drm *drm = nouveau_drm(dev);
94
95 if (tile) {
96 spin_lock(&drm->tile.lock);
97 tile->fence = (struct nouveau_fence *)dma_fence_get(fence);
98 tile->used = false;
99 spin_unlock(&drm->tile.lock);
100 }
101}
102
103static struct nouveau_drm_tile *
104nv10_bo_set_tiling(struct drm_device *dev, u32 addr,
105 u32 size, u32 pitch, u32 zeta)
106{
107 struct nouveau_drm *drm = nouveau_drm(dev);
108 struct nvkm_fb *fb = nvxx_fb(&drm->client.device);
109 struct nouveau_drm_tile *tile, *found = NULL;
110 int i;
111
112 for (i = 0; i < fb->tile.regions; i++) {
113 tile = nv10_bo_get_tile_region(dev, i);
114
115 if (pitch && !found) {
116 found = tile;
117 continue;
118
119 } else if (tile && fb->tile.region[i].pitch) {
120 /* Kill an unused tile region. */
121 nv10_bo_update_tile_region(dev, tile, 0, 0, 0, 0);
122 }
123
124 nv10_bo_put_tile_region(dev, tile, NULL);
125 }
126
127 if (found)
128 nv10_bo_update_tile_region(dev, found, addr, size, pitch, zeta);
129 return found;
130}
131
132static void
133nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
134{
135 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
136 struct drm_device *dev = drm->dev;
137 struct nouveau_bo *nvbo = nouveau_bo(bo);
138
139 WARN_ON(nvbo->pin_refcnt > 0);
140 nv10_bo_put_tile_region(dev, nvbo->tile, NULL);
141
142 /*
143 * If nouveau_bo_new() allocated this buffer, the GEM object was never
144 * initialized, so don't attempt to release it.
145 */
146 if (bo->base.dev)
147 drm_gem_object_release(&bo->base);
148
149 kfree(nvbo);
150}
151
152static inline u64
153roundup_64(u64 x, u32 y)
154{
155 x += y - 1;
156 do_div(x, y);
157 return x * y;
158}
159
160static void
161nouveau_bo_fixup_align(struct nouveau_bo *nvbo, u32 flags,
162 int *align, u64 *size)
163{
164 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
165 struct nvif_device *device = &drm->client.device;
166
167 if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
168 if (nvbo->mode) {
169 if (device->info.chipset >= 0x40) {
170 *align = 65536;
171 *size = roundup_64(*size, 64 * nvbo->mode);
172
173 } else if (device->info.chipset >= 0x30) {
174 *align = 32768;
175 *size = roundup_64(*size, 64 * nvbo->mode);
176
177 } else if (device->info.chipset >= 0x20) {
178 *align = 16384;
179 *size = roundup_64(*size, 64 * nvbo->mode);
180
181 } else if (device->info.chipset >= 0x10) {
182 *align = 16384;
183 *size = roundup_64(*size, 32 * nvbo->mode);
184 }
185 }
186 } else {
187 *size = roundup_64(*size, (1 << nvbo->page));
188 *align = max((1 << nvbo->page), *align);
189 }
190
191 *size = roundup_64(*size, PAGE_SIZE);
192}
193
194struct nouveau_bo *
195nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 flags,
196 u32 tile_mode, u32 tile_flags)
197{
198 struct nouveau_drm *drm = cli->drm;
199 struct nouveau_bo *nvbo;
200 struct nvif_mmu *mmu = &cli->mmu;
201 struct nvif_vmm *vmm = cli->svm.cli ? &cli->svm.vmm : &cli->vmm.vmm;
202 int i, pi = -1;
203
204 if (!*size) {
205 NV_WARN(drm, "skipped size %016llx\n", *size);
206 return ERR_PTR(-EINVAL);
207 }
208
209 nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
210 if (!nvbo)
211 return ERR_PTR(-ENOMEM);
212 INIT_LIST_HEAD(&nvbo->head);
213 INIT_LIST_HEAD(&nvbo->entry);
214 INIT_LIST_HEAD(&nvbo->vma_list);
215 nvbo->bo.bdev = &drm->ttm.bdev;
216
217 /* This is confusing, and doesn't actually mean we want an uncached
218 * mapping, but is what NOUVEAU_GEM_DOMAIN_COHERENT gets translated
219 * into in nouveau_gem_new().
220 */
221 if (flags & TTM_PL_FLAG_UNCACHED) {
222 /* Determine if we can get a cache-coherent map, forcing
223 * uncached mapping if we can't.
224 */
225 if (!nouveau_drm_use_coherent_gpu_mapping(drm))
226 nvbo->force_coherent = true;
227 }
228
229 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI) {
230 nvbo->kind = (tile_flags & 0x0000ff00) >> 8;
231 if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) {
232 kfree(nvbo);
233 return ERR_PTR(-EINVAL);
234 }
235
236 nvbo->comp = mmu->kind[nvbo->kind] != nvbo->kind;
237 } else
238 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
239 nvbo->kind = (tile_flags & 0x00007f00) >> 8;
240 nvbo->comp = (tile_flags & 0x00030000) >> 16;
241 if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) {
242 kfree(nvbo);
243 return ERR_PTR(-EINVAL);
244 }
245 } else {
246 nvbo->zeta = (tile_flags & 0x00000007);
247 }
248 nvbo->mode = tile_mode;
249 nvbo->contig = !(tile_flags & NOUVEAU_GEM_TILE_NONCONTIG);
250
251 /* Determine the desirable target GPU page size for the buffer. */
252 for (i = 0; i < vmm->page_nr; i++) {
253 /* Because we cannot currently allow VMM maps to fail
254 * during buffer migration, we need to determine page
255 * size for the buffer up-front, and pre-allocate its
256 * page tables.
257 *
258 * Skip page sizes that can't support needed domains.
259 */
260 if (cli->device.info.family > NV_DEVICE_INFO_V0_CURIE &&
261 (flags & TTM_PL_FLAG_VRAM) && !vmm->page[i].vram)
262 continue;
263 if ((flags & TTM_PL_FLAG_TT) &&
264 (!vmm->page[i].host || vmm->page[i].shift > PAGE_SHIFT))
265 continue;
266
267 /* Select this page size if it's the first that supports
268 * the potential memory domains, or when it's compatible
269 * with the requested compression settings.
270 */
271 if (pi < 0 || !nvbo->comp || vmm->page[i].comp)
272 pi = i;
273
274 /* Stop once the buffer is larger than the current page size. */
275 if (*size >= 1ULL << vmm->page[i].shift)
276 break;
277 }
278
279 if (WARN_ON(pi < 0))
280 return ERR_PTR(-EINVAL);
281
282 /* Disable compression if suitable settings couldn't be found. */
283 if (nvbo->comp && !vmm->page[pi].comp) {
284 if (mmu->object.oclass >= NVIF_CLASS_MMU_GF100)
285 nvbo->kind = mmu->kind[nvbo->kind];
286 nvbo->comp = 0;
287 }
288 nvbo->page = vmm->page[pi].shift;
289
290 nouveau_bo_fixup_align(nvbo, flags, align, size);
291
292 return nvbo;
293}
294
295int
296nouveau_bo_init(struct nouveau_bo *nvbo, u64 size, int align, u32 flags,
297 struct sg_table *sg, struct dma_resv *robj)
298{
299 int type = sg ? ttm_bo_type_sg : ttm_bo_type_device;
300 size_t acc_size;
301 int ret;
302
303 acc_size = ttm_bo_dma_acc_size(nvbo->bo.bdev, size, sizeof(*nvbo));
304
305 nvbo->bo.mem.num_pages = size >> PAGE_SHIFT;
306 nouveau_bo_placement_set(nvbo, flags, 0);
307
308 ret = ttm_bo_init(nvbo->bo.bdev, &nvbo->bo, size, type,
309 &nvbo->placement, align >> PAGE_SHIFT, false,
310 acc_size, sg, robj, nouveau_bo_del_ttm);
311 if (ret) {
312 /* ttm will call nouveau_bo_del_ttm if it fails.. */
313 return ret;
314 }
315
316 return 0;
317}
318
319int
320nouveau_bo_new(struct nouveau_cli *cli, u64 size, int align,
321 uint32_t flags, uint32_t tile_mode, uint32_t tile_flags,
322 struct sg_table *sg, struct dma_resv *robj,
323 struct nouveau_bo **pnvbo)
324{
325 struct nouveau_bo *nvbo;
326 int ret;
327
328 nvbo = nouveau_bo_alloc(cli, &size, &align, flags, tile_mode,
329 tile_flags);
330 if (IS_ERR(nvbo))
331 return PTR_ERR(nvbo);
332
333 ret = nouveau_bo_init(nvbo, size, align, flags, sg, robj);
334 if (ret)
335 return ret;
336
337 *pnvbo = nvbo;
338 return 0;
339}
340
341static void
342set_placement_list(struct ttm_place *pl, unsigned *n, uint32_t type, uint32_t flags)
343{
344 *n = 0;
345
346 if (type & TTM_PL_FLAG_VRAM)
347 pl[(*n)++].flags = TTM_PL_FLAG_VRAM | flags;
348 if (type & TTM_PL_FLAG_TT)
349 pl[(*n)++].flags = TTM_PL_FLAG_TT | flags;
350 if (type & TTM_PL_FLAG_SYSTEM)
351 pl[(*n)++].flags = TTM_PL_FLAG_SYSTEM | flags;
352}
353
354static void
355set_placement_range(struct nouveau_bo *nvbo, uint32_t type)
356{
357 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
358 u32 vram_pages = drm->client.device.info.ram_size >> PAGE_SHIFT;
359 unsigned i, fpfn, lpfn;
360
361 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
362 nvbo->mode && (type & TTM_PL_FLAG_VRAM) &&
363 nvbo->bo.mem.num_pages < vram_pages / 4) {
364 /*
365 * Make sure that the color and depth buffers are handled
366 * by independent memory controller units. Up to a 9x
367 * speed up when alpha-blending and depth-test are enabled
368 * at the same time.
369 */
370 if (nvbo->zeta) {
371 fpfn = vram_pages / 2;
372 lpfn = ~0;
373 } else {
374 fpfn = 0;
375 lpfn = vram_pages / 2;
376 }
377 for (i = 0; i < nvbo->placement.num_placement; ++i) {
378 nvbo->placements[i].fpfn = fpfn;
379 nvbo->placements[i].lpfn = lpfn;
380 }
381 for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
382 nvbo->busy_placements[i].fpfn = fpfn;
383 nvbo->busy_placements[i].lpfn = lpfn;
384 }
385 }
386}
387
388void
389nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy)
390{
391 struct ttm_placement *pl = &nvbo->placement;
392 uint32_t flags = (nvbo->force_coherent ? TTM_PL_FLAG_UNCACHED :
393 TTM_PL_MASK_CACHING) |
394 (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0);
395
396 pl->placement = nvbo->placements;
397 set_placement_list(nvbo->placements, &pl->num_placement,
398 type, flags);
399
400 pl->busy_placement = nvbo->busy_placements;
401 set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
402 type | busy, flags);
403
404 set_placement_range(nvbo, type);
405}
406
407int
408nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype, bool contig)
409{
410 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
411 struct ttm_buffer_object *bo = &nvbo->bo;
412 bool force = false, evict = false;
413 int ret;
414
415 ret = ttm_bo_reserve(bo, false, false, NULL);
416 if (ret)
417 return ret;
418
419 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
420 memtype == TTM_PL_FLAG_VRAM && contig) {
421 if (!nvbo->contig) {
422 nvbo->contig = true;
423 force = true;
424 evict = true;
425 }
426 }
427
428 if (nvbo->pin_refcnt) {
429 if (!(memtype & (1 << bo->mem.mem_type)) || evict) {
430 NV_ERROR(drm, "bo %p pinned elsewhere: "
431 "0x%08x vs 0x%08x\n", bo,
432 1 << bo->mem.mem_type, memtype);
433 ret = -EBUSY;
434 }
435 nvbo->pin_refcnt++;
436 goto out;
437 }
438
439 if (evict) {
440 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT, 0);
441 ret = nouveau_bo_validate(nvbo, false, false);
442 if (ret)
443 goto out;
444 }
445
446 nvbo->pin_refcnt++;
447 nouveau_bo_placement_set(nvbo, memtype, 0);
448
449 /* drop pin_refcnt temporarily, so we don't trip the assertion
450 * in nouveau_bo_move() that makes sure we're not trying to
451 * move a pinned buffer
452 */
453 nvbo->pin_refcnt--;
454 ret = nouveau_bo_validate(nvbo, false, false);
455 if (ret)
456 goto out;
457 nvbo->pin_refcnt++;
458
459 switch (bo->mem.mem_type) {
460 case TTM_PL_VRAM:
461 drm->gem.vram_available -= bo->mem.size;
462 break;
463 case TTM_PL_TT:
464 drm->gem.gart_available -= bo->mem.size;
465 break;
466 default:
467 break;
468 }
469
470out:
471 if (force && ret)
472 nvbo->contig = false;
473 ttm_bo_unreserve(bo);
474 return ret;
475}
476
477int
478nouveau_bo_unpin(struct nouveau_bo *nvbo)
479{
480 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
481 struct ttm_buffer_object *bo = &nvbo->bo;
482 int ret, ref;
483
484 ret = ttm_bo_reserve(bo, false, false, NULL);
485 if (ret)
486 return ret;
487
488 ref = --nvbo->pin_refcnt;
489 WARN_ON_ONCE(ref < 0);
490 if (ref)
491 goto out;
492
493 nouveau_bo_placement_set(nvbo, bo->mem.placement, 0);
494
495 ret = nouveau_bo_validate(nvbo, false, false);
496 if (ret == 0) {
497 switch (bo->mem.mem_type) {
498 case TTM_PL_VRAM:
499 drm->gem.vram_available += bo->mem.size;
500 break;
501 case TTM_PL_TT:
502 drm->gem.gart_available += bo->mem.size;
503 break;
504 default:
505 break;
506 }
507 }
508
509out:
510 ttm_bo_unreserve(bo);
511 return ret;
512}
513
514int
515nouveau_bo_map(struct nouveau_bo *nvbo)
516{
517 int ret;
518
519 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
520 if (ret)
521 return ret;
522
523 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, &nvbo->kmap);
524
525 ttm_bo_unreserve(&nvbo->bo);
526 return ret;
527}
528
529void
530nouveau_bo_unmap(struct nouveau_bo *nvbo)
531{
532 if (!nvbo)
533 return;
534
535 ttm_bo_kunmap(&nvbo->kmap);
536}
537
538void
539nouveau_bo_sync_for_device(struct nouveau_bo *nvbo)
540{
541 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
542 struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
543 int i;
544
545 if (!ttm_dma)
546 return;
547
548 /* Don't waste time looping if the object is coherent */
549 if (nvbo->force_coherent)
550 return;
551
552 for (i = 0; i < ttm_dma->ttm.num_pages; i++)
553 dma_sync_single_for_device(drm->dev->dev,
554 ttm_dma->dma_address[i],
555 PAGE_SIZE, DMA_TO_DEVICE);
556}
557
558void
559nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo)
560{
561 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
562 struct ttm_dma_tt *ttm_dma = (struct ttm_dma_tt *)nvbo->bo.ttm;
563 int i;
564
565 if (!ttm_dma)
566 return;
567
568 /* Don't waste time looping if the object is coherent */
569 if (nvbo->force_coherent)
570 return;
571
572 for (i = 0; i < ttm_dma->ttm.num_pages; i++)
573 dma_sync_single_for_cpu(drm->dev->dev, ttm_dma->dma_address[i],
574 PAGE_SIZE, DMA_FROM_DEVICE);
575}
576
577int
578nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible,
579 bool no_wait_gpu)
580{
581 struct ttm_operation_ctx ctx = { interruptible, no_wait_gpu };
582 int ret;
583
584 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, &ctx);
585 if (ret)
586 return ret;
587
588 nouveau_bo_sync_for_device(nvbo);
589
590 return 0;
591}
592
593void
594nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val)
595{
596 bool is_iomem;
597 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
598
599 mem += index;
600
601 if (is_iomem)
602 iowrite16_native(val, (void __force __iomem *)mem);
603 else
604 *mem = val;
605}
606
607u32
608nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index)
609{
610 bool is_iomem;
611 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
612
613 mem += index;
614
615 if (is_iomem)
616 return ioread32_native((void __force __iomem *)mem);
617 else
618 return *mem;
619}
620
621void
622nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
623{
624 bool is_iomem;
625 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
626
627 mem += index;
628
629 if (is_iomem)
630 iowrite32_native(val, (void __force __iomem *)mem);
631 else
632 *mem = val;
633}
634
635static struct ttm_tt *
636nouveau_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags)
637{
638#if IS_ENABLED(CONFIG_AGP)
639 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
640
641 if (drm->agp.bridge) {
642 return ttm_agp_tt_create(bo, drm->agp.bridge, page_flags);
643 }
644#endif
645
646 return nouveau_sgdma_create_ttm(bo, page_flags);
647}
648
649static int
650nouveau_bo_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
651{
652 /* We'll do this from user space. */
653 return 0;
654}
655
656static int
657nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
658 struct ttm_mem_type_manager *man)
659{
660 struct nouveau_drm *drm = nouveau_bdev(bdev);
661 struct nvif_mmu *mmu = &drm->client.mmu;
662
663 switch (type) {
664 case TTM_PL_SYSTEM:
665 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
666 man->available_caching = TTM_PL_MASK_CACHING;
667 man->default_caching = TTM_PL_FLAG_CACHED;
668 break;
669 case TTM_PL_VRAM:
670 man->flags = TTM_MEMTYPE_FLAG_FIXED |
671 TTM_MEMTYPE_FLAG_MAPPABLE;
672 man->available_caching = TTM_PL_FLAG_UNCACHED |
673 TTM_PL_FLAG_WC;
674 man->default_caching = TTM_PL_FLAG_WC;
675
676 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
677 /* Some BARs do not support being ioremapped WC */
678 const u8 type = mmu->type[drm->ttm.type_vram].type;
679 if (type & NVIF_MEM_UNCACHED) {
680 man->available_caching = TTM_PL_FLAG_UNCACHED;
681 man->default_caching = TTM_PL_FLAG_UNCACHED;
682 }
683
684 man->func = &nouveau_vram_manager;
685 man->io_reserve_fastpath = false;
686 man->use_io_reserve_lru = true;
687 } else {
688 man->func = &ttm_bo_manager_func;
689 }
690 break;
691 case TTM_PL_TT:
692 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA)
693 man->func = &nouveau_gart_manager;
694 else
695 if (!drm->agp.bridge)
696 man->func = &nv04_gart_manager;
697 else
698 man->func = &ttm_bo_manager_func;
699
700 if (drm->agp.bridge) {
701 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
702 man->available_caching = TTM_PL_FLAG_UNCACHED |
703 TTM_PL_FLAG_WC;
704 man->default_caching = TTM_PL_FLAG_WC;
705 } else {
706 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
707 TTM_MEMTYPE_FLAG_CMA;
708 man->available_caching = TTM_PL_MASK_CACHING;
709 man->default_caching = TTM_PL_FLAG_CACHED;
710 }
711
712 break;
713 default:
714 return -EINVAL;
715 }
716 return 0;
717}
718
719static void
720nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
721{
722 struct nouveau_bo *nvbo = nouveau_bo(bo);
723
724 switch (bo->mem.mem_type) {
725 case TTM_PL_VRAM:
726 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT,
727 TTM_PL_FLAG_SYSTEM);
728 break;
729 default:
730 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM, 0);
731 break;
732 }
733
734 *pl = nvbo->placement;
735}
736
737
738static int
739nve0_bo_move_init(struct nouveau_channel *chan, u32 handle)
740{
741 int ret = RING_SPACE(chan, 2);
742 if (ret == 0) {
743 BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1);
744 OUT_RING (chan, handle & 0x0000ffff);
745 FIRE_RING (chan);
746 }
747 return ret;
748}
749
750static int
751nve0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
752 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
753{
754 struct nouveau_mem *mem = nouveau_mem(old_reg);
755 int ret = RING_SPACE(chan, 10);
756 if (ret == 0) {
757 BEGIN_NVC0(chan, NvSubCopy, 0x0400, 8);
758 OUT_RING (chan, upper_32_bits(mem->vma[0].addr));
759 OUT_RING (chan, lower_32_bits(mem->vma[0].addr));
760 OUT_RING (chan, upper_32_bits(mem->vma[1].addr));
761 OUT_RING (chan, lower_32_bits(mem->vma[1].addr));
762 OUT_RING (chan, PAGE_SIZE);
763 OUT_RING (chan, PAGE_SIZE);
764 OUT_RING (chan, PAGE_SIZE);
765 OUT_RING (chan, new_reg->num_pages);
766 BEGIN_IMC0(chan, NvSubCopy, 0x0300, 0x0386);
767 }
768 return ret;
769}
770
771static int
772nvc0_bo_move_init(struct nouveau_channel *chan, u32 handle)
773{
774 int ret = RING_SPACE(chan, 2);
775 if (ret == 0) {
776 BEGIN_NVC0(chan, NvSubCopy, 0x0000, 1);
777 OUT_RING (chan, handle);
778 }
779 return ret;
780}
781
782static int
783nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
784 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
785{
786 struct nouveau_mem *mem = nouveau_mem(old_reg);
787 u64 src_offset = mem->vma[0].addr;
788 u64 dst_offset = mem->vma[1].addr;
789 u32 page_count = new_reg->num_pages;
790 int ret;
791
792 page_count = new_reg->num_pages;
793 while (page_count) {
794 int line_count = (page_count > 8191) ? 8191 : page_count;
795
796 ret = RING_SPACE(chan, 11);
797 if (ret)
798 return ret;
799
800 BEGIN_NVC0(chan, NvSubCopy, 0x030c, 8);
801 OUT_RING (chan, upper_32_bits(src_offset));
802 OUT_RING (chan, lower_32_bits(src_offset));
803 OUT_RING (chan, upper_32_bits(dst_offset));
804 OUT_RING (chan, lower_32_bits(dst_offset));
805 OUT_RING (chan, PAGE_SIZE);
806 OUT_RING (chan, PAGE_SIZE);
807 OUT_RING (chan, PAGE_SIZE);
808 OUT_RING (chan, line_count);
809 BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1);
810 OUT_RING (chan, 0x00000110);
811
812 page_count -= line_count;
813 src_offset += (PAGE_SIZE * line_count);
814 dst_offset += (PAGE_SIZE * line_count);
815 }
816
817 return 0;
818}
819
820static int
821nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
822 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
823{
824 struct nouveau_mem *mem = nouveau_mem(old_reg);
825 u64 src_offset = mem->vma[0].addr;
826 u64 dst_offset = mem->vma[1].addr;
827 u32 page_count = new_reg->num_pages;
828 int ret;
829
830 page_count = new_reg->num_pages;
831 while (page_count) {
832 int line_count = (page_count > 2047) ? 2047 : page_count;
833
834 ret = RING_SPACE(chan, 12);
835 if (ret)
836 return ret;
837
838 BEGIN_NVC0(chan, NvSubCopy, 0x0238, 2);
839 OUT_RING (chan, upper_32_bits(dst_offset));
840 OUT_RING (chan, lower_32_bits(dst_offset));
841 BEGIN_NVC0(chan, NvSubCopy, 0x030c, 6);
842 OUT_RING (chan, upper_32_bits(src_offset));
843 OUT_RING (chan, lower_32_bits(src_offset));
844 OUT_RING (chan, PAGE_SIZE); /* src_pitch */
845 OUT_RING (chan, PAGE_SIZE); /* dst_pitch */
846 OUT_RING (chan, PAGE_SIZE); /* line_length */
847 OUT_RING (chan, line_count);
848 BEGIN_NVC0(chan, NvSubCopy, 0x0300, 1);
849 OUT_RING (chan, 0x00100110);
850
851 page_count -= line_count;
852 src_offset += (PAGE_SIZE * line_count);
853 dst_offset += (PAGE_SIZE * line_count);
854 }
855
856 return 0;
857}
858
859static int
860nva3_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
861 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
862{
863 struct nouveau_mem *mem = nouveau_mem(old_reg);
864 u64 src_offset = mem->vma[0].addr;
865 u64 dst_offset = mem->vma[1].addr;
866 u32 page_count = new_reg->num_pages;
867 int ret;
868
869 page_count = new_reg->num_pages;
870 while (page_count) {
871 int line_count = (page_count > 8191) ? 8191 : page_count;
872
873 ret = RING_SPACE(chan, 11);
874 if (ret)
875 return ret;
876
877 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8);
878 OUT_RING (chan, upper_32_bits(src_offset));
879 OUT_RING (chan, lower_32_bits(src_offset));
880 OUT_RING (chan, upper_32_bits(dst_offset));
881 OUT_RING (chan, lower_32_bits(dst_offset));
882 OUT_RING (chan, PAGE_SIZE);
883 OUT_RING (chan, PAGE_SIZE);
884 OUT_RING (chan, PAGE_SIZE);
885 OUT_RING (chan, line_count);
886 BEGIN_NV04(chan, NvSubCopy, 0x0300, 1);
887 OUT_RING (chan, 0x00000110);
888
889 page_count -= line_count;
890 src_offset += (PAGE_SIZE * line_count);
891 dst_offset += (PAGE_SIZE * line_count);
892 }
893
894 return 0;
895}
896
897static int
898nv98_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
899 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
900{
901 struct nouveau_mem *mem = nouveau_mem(old_reg);
902 int ret = RING_SPACE(chan, 7);
903 if (ret == 0) {
904 BEGIN_NV04(chan, NvSubCopy, 0x0320, 6);
905 OUT_RING (chan, upper_32_bits(mem->vma[0].addr));
906 OUT_RING (chan, lower_32_bits(mem->vma[0].addr));
907 OUT_RING (chan, upper_32_bits(mem->vma[1].addr));
908 OUT_RING (chan, lower_32_bits(mem->vma[1].addr));
909 OUT_RING (chan, 0x00000000 /* COPY */);
910 OUT_RING (chan, new_reg->num_pages << PAGE_SHIFT);
911 }
912 return ret;
913}
914
915static int
916nv84_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
917 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
918{
919 struct nouveau_mem *mem = nouveau_mem(old_reg);
920 int ret = RING_SPACE(chan, 7);
921 if (ret == 0) {
922 BEGIN_NV04(chan, NvSubCopy, 0x0304, 6);
923 OUT_RING (chan, new_reg->num_pages << PAGE_SHIFT);
924 OUT_RING (chan, upper_32_bits(mem->vma[0].addr));
925 OUT_RING (chan, lower_32_bits(mem->vma[0].addr));
926 OUT_RING (chan, upper_32_bits(mem->vma[1].addr));
927 OUT_RING (chan, lower_32_bits(mem->vma[1].addr));
928 OUT_RING (chan, 0x00000000 /* MODE_COPY, QUERY_NONE */);
929 }
930 return ret;
931}
932
933static int
934nv50_bo_move_init(struct nouveau_channel *chan, u32 handle)
935{
936 int ret = RING_SPACE(chan, 6);
937 if (ret == 0) {
938 BEGIN_NV04(chan, NvSubCopy, 0x0000, 1);
939 OUT_RING (chan, handle);
940 BEGIN_NV04(chan, NvSubCopy, 0x0180, 3);
941 OUT_RING (chan, chan->drm->ntfy.handle);
942 OUT_RING (chan, chan->vram.handle);
943 OUT_RING (chan, chan->vram.handle);
944 }
945
946 return ret;
947}
948
949static int
950nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
951 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
952{
953 struct nouveau_mem *mem = nouveau_mem(old_reg);
954 u64 length = (new_reg->num_pages << PAGE_SHIFT);
955 u64 src_offset = mem->vma[0].addr;
956 u64 dst_offset = mem->vma[1].addr;
957 int src_tiled = !!mem->kind;
958 int dst_tiled = !!nouveau_mem(new_reg)->kind;
959 int ret;
960
961 while (length) {
962 u32 amount, stride, height;
963
964 ret = RING_SPACE(chan, 18 + 6 * (src_tiled + dst_tiled));
965 if (ret)
966 return ret;
967
968 amount = min(length, (u64)(4 * 1024 * 1024));
969 stride = 16 * 4;
970 height = amount / stride;
971
972 if (src_tiled) {
973 BEGIN_NV04(chan, NvSubCopy, 0x0200, 7);
974 OUT_RING (chan, 0);
975 OUT_RING (chan, 0);
976 OUT_RING (chan, stride);
977 OUT_RING (chan, height);
978 OUT_RING (chan, 1);
979 OUT_RING (chan, 0);
980 OUT_RING (chan, 0);
981 } else {
982 BEGIN_NV04(chan, NvSubCopy, 0x0200, 1);
983 OUT_RING (chan, 1);
984 }
985 if (dst_tiled) {
986 BEGIN_NV04(chan, NvSubCopy, 0x021c, 7);
987 OUT_RING (chan, 0);
988 OUT_RING (chan, 0);
989 OUT_RING (chan, stride);
990 OUT_RING (chan, height);
991 OUT_RING (chan, 1);
992 OUT_RING (chan, 0);
993 OUT_RING (chan, 0);
994 } else {
995 BEGIN_NV04(chan, NvSubCopy, 0x021c, 1);
996 OUT_RING (chan, 1);
997 }
998
999 BEGIN_NV04(chan, NvSubCopy, 0x0238, 2);
1000 OUT_RING (chan, upper_32_bits(src_offset));
1001 OUT_RING (chan, upper_32_bits(dst_offset));
1002 BEGIN_NV04(chan, NvSubCopy, 0x030c, 8);
1003 OUT_RING (chan, lower_32_bits(src_offset));
1004 OUT_RING (chan, lower_32_bits(dst_offset));
1005 OUT_RING (chan, stride);
1006 OUT_RING (chan, stride);
1007 OUT_RING (chan, stride);
1008 OUT_RING (chan, height);
1009 OUT_RING (chan, 0x00000101);
1010 OUT_RING (chan, 0x00000000);
1011 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
1012 OUT_RING (chan, 0);
1013
1014 length -= amount;
1015 src_offset += amount;
1016 dst_offset += amount;
1017 }
1018
1019 return 0;
1020}
1021
1022static int
1023nv04_bo_move_init(struct nouveau_channel *chan, u32 handle)
1024{
1025 int ret = RING_SPACE(chan, 4);
1026 if (ret == 0) {
1027 BEGIN_NV04(chan, NvSubCopy, 0x0000, 1);
1028 OUT_RING (chan, handle);
1029 BEGIN_NV04(chan, NvSubCopy, 0x0180, 1);
1030 OUT_RING (chan, chan->drm->ntfy.handle);
1031 }
1032
1033 return ret;
1034}
1035
1036static inline uint32_t
1037nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
1038 struct nouveau_channel *chan, struct ttm_mem_reg *reg)
1039{
1040 if (reg->mem_type == TTM_PL_TT)
1041 return NvDmaTT;
1042 return chan->vram.handle;
1043}
1044
1045static int
1046nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
1047 struct ttm_mem_reg *old_reg, struct ttm_mem_reg *new_reg)
1048{
1049 u32 src_offset = old_reg->start << PAGE_SHIFT;
1050 u32 dst_offset = new_reg->start << PAGE_SHIFT;
1051 u32 page_count = new_reg->num_pages;
1052 int ret;
1053
1054 ret = RING_SPACE(chan, 3);
1055 if (ret)
1056 return ret;
1057
1058 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2);
1059 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, old_reg));
1060 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, new_reg));
1061
1062 page_count = new_reg->num_pages;
1063 while (page_count) {
1064 int line_count = (page_count > 2047) ? 2047 : page_count;
1065
1066 ret = RING_SPACE(chan, 11);
1067 if (ret)
1068 return ret;
1069
1070 BEGIN_NV04(chan, NvSubCopy,
1071 NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
1072 OUT_RING (chan, src_offset);
1073 OUT_RING (chan, dst_offset);
1074 OUT_RING (chan, PAGE_SIZE); /* src_pitch */
1075 OUT_RING (chan, PAGE_SIZE); /* dst_pitch */
1076 OUT_RING (chan, PAGE_SIZE); /* line_length */
1077 OUT_RING (chan, line_count);
1078 OUT_RING (chan, 0x00000101);
1079 OUT_RING (chan, 0x00000000);
1080 BEGIN_NV04(chan, NvSubCopy, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
1081 OUT_RING (chan, 0);
1082
1083 page_count -= line_count;
1084 src_offset += (PAGE_SIZE * line_count);
1085 dst_offset += (PAGE_SIZE * line_count);
1086 }
1087
1088 return 0;
1089}
1090
1091static int
1092nouveau_bo_move_prep(struct nouveau_drm *drm, struct ttm_buffer_object *bo,
1093 struct ttm_mem_reg *reg)
1094{
1095 struct nouveau_mem *old_mem = nouveau_mem(&bo->mem);
1096 struct nouveau_mem *new_mem = nouveau_mem(reg);
1097 struct nvif_vmm *vmm = &drm->client.vmm.vmm;
1098 int ret;
1099
1100 ret = nvif_vmm_get(vmm, LAZY, false, old_mem->mem.page, 0,
1101 old_mem->mem.size, &old_mem->vma[0]);
1102 if (ret)
1103 return ret;
1104
1105 ret = nvif_vmm_get(vmm, LAZY, false, new_mem->mem.page, 0,
1106 new_mem->mem.size, &old_mem->vma[1]);
1107 if (ret)
1108 goto done;
1109
1110 ret = nouveau_mem_map(old_mem, vmm, &old_mem->vma[0]);
1111 if (ret)
1112 goto done;
1113
1114 ret = nouveau_mem_map(new_mem, vmm, &old_mem->vma[1]);
1115done:
1116 if (ret) {
1117 nvif_vmm_put(vmm, &old_mem->vma[1]);
1118 nvif_vmm_put(vmm, &old_mem->vma[0]);
1119 }
1120 return 0;
1121}
1122
1123static int
1124nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
1125 bool no_wait_gpu, struct ttm_mem_reg *new_reg)
1126{
1127 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1128 struct nouveau_channel *chan = drm->ttm.chan;
1129 struct nouveau_cli *cli = (void *)chan->user.client;
1130 struct nouveau_fence *fence;
1131 int ret;
1132
1133 /* create temporary vmas for the transfer and attach them to the
1134 * old nvkm_mem node, these will get cleaned up after ttm has
1135 * destroyed the ttm_mem_reg
1136 */
1137 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
1138 ret = nouveau_bo_move_prep(drm, bo, new_reg);
1139 if (ret)
1140 return ret;
1141 }
1142
1143 mutex_lock_nested(&cli->mutex, SINGLE_DEPTH_NESTING);
1144 ret = nouveau_fence_sync(nouveau_bo(bo), chan, true, intr);
1145 if (ret == 0) {
1146 ret = drm->ttm.move(chan, bo, &bo->mem, new_reg);
1147 if (ret == 0) {
1148 ret = nouveau_fence_new(chan, false, &fence);
1149 if (ret == 0) {
1150 ret = ttm_bo_move_accel_cleanup(bo,
1151 &fence->base,
1152 evict,
1153 new_reg);
1154 nouveau_fence_unref(&fence);
1155 }
1156 }
1157 }
1158 mutex_unlock(&cli->mutex);
1159 return ret;
1160}
1161
1162void
1163nouveau_bo_move_init(struct nouveau_drm *drm)
1164{
1165 static const struct {
1166 const char *name;
1167 int engine;
1168 s32 oclass;
1169 int (*exec)(struct nouveau_channel *,
1170 struct ttm_buffer_object *,
1171 struct ttm_mem_reg *, struct ttm_mem_reg *);
1172 int (*init)(struct nouveau_channel *, u32 handle);
1173 } _methods[] = {
1174 { "COPY", 4, 0xc5b5, nve0_bo_move_copy, nve0_bo_move_init },
1175 { "GRCE", 0, 0xc5b5, nve0_bo_move_copy, nvc0_bo_move_init },
1176 { "COPY", 4, 0xc3b5, nve0_bo_move_copy, nve0_bo_move_init },
1177 { "GRCE", 0, 0xc3b5, nve0_bo_move_copy, nvc0_bo_move_init },
1178 { "COPY", 4, 0xc1b5, nve0_bo_move_copy, nve0_bo_move_init },
1179 { "GRCE", 0, 0xc1b5, nve0_bo_move_copy, nvc0_bo_move_init },
1180 { "COPY", 4, 0xc0b5, nve0_bo_move_copy, nve0_bo_move_init },
1181 { "GRCE", 0, 0xc0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1182 { "COPY", 4, 0xb0b5, nve0_bo_move_copy, nve0_bo_move_init },
1183 { "GRCE", 0, 0xb0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1184 { "COPY", 4, 0xa0b5, nve0_bo_move_copy, nve0_bo_move_init },
1185 { "GRCE", 0, 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init },
1186 { "COPY1", 5, 0x90b8, nvc0_bo_move_copy, nvc0_bo_move_init },
1187 { "COPY0", 4, 0x90b5, nvc0_bo_move_copy, nvc0_bo_move_init },
1188 { "COPY", 0, 0x85b5, nva3_bo_move_copy, nv50_bo_move_init },
1189 { "CRYPT", 0, 0x74c1, nv84_bo_move_exec, nv50_bo_move_init },
1190 { "M2MF", 0, 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init },
1191 { "M2MF", 0, 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init },
1192 { "M2MF", 0, 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init },
1193 {},
1194 { "CRYPT", 0, 0x88b4, nv98_bo_move_exec, nv50_bo_move_init },
1195 }, *mthd = _methods;
1196 const char *name = "CPU";
1197 int ret;
1198
1199 do {
1200 struct nouveau_channel *chan;
1201
1202 if (mthd->engine)
1203 chan = drm->cechan;
1204 else
1205 chan = drm->channel;
1206 if (chan == NULL)
1207 continue;
1208
1209 ret = nvif_object_init(&chan->user,
1210 mthd->oclass | (mthd->engine << 16),
1211 mthd->oclass, NULL, 0,
1212 &drm->ttm.copy);
1213 if (ret == 0) {
1214 ret = mthd->init(chan, drm->ttm.copy.handle);
1215 if (ret) {
1216 nvif_object_fini(&drm->ttm.copy);
1217 continue;
1218 }
1219
1220 drm->ttm.move = mthd->exec;
1221 drm->ttm.chan = chan;
1222 name = mthd->name;
1223 break;
1224 }
1225 } while ((++mthd)->exec);
1226
1227 NV_INFO(drm, "MM: using %s for buffer copies\n", name);
1228}
1229
1230static int
1231nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
1232 bool no_wait_gpu, struct ttm_mem_reg *new_reg)
1233{
1234 struct ttm_operation_ctx ctx = { intr, no_wait_gpu };
1235 struct ttm_place placement_memtype = {
1236 .fpfn = 0,
1237 .lpfn = 0,
1238 .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING
1239 };
1240 struct ttm_placement placement;
1241 struct ttm_mem_reg tmp_reg;
1242 int ret;
1243
1244 placement.num_placement = placement.num_busy_placement = 1;
1245 placement.placement = placement.busy_placement = &placement_memtype;
1246
1247 tmp_reg = *new_reg;
1248 tmp_reg.mm_node = NULL;
1249 ret = ttm_bo_mem_space(bo, &placement, &tmp_reg, &ctx);
1250 if (ret)
1251 return ret;
1252
1253 ret = ttm_tt_bind(bo->ttm, &tmp_reg, &ctx);
1254 if (ret)
1255 goto out;
1256
1257 ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, &tmp_reg);
1258 if (ret)
1259 goto out;
1260
1261 ret = ttm_bo_move_ttm(bo, &ctx, new_reg);
1262out:
1263 ttm_bo_mem_put(bo, &tmp_reg);
1264 return ret;
1265}
1266
1267static int
1268nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
1269 bool no_wait_gpu, struct ttm_mem_reg *new_reg)
1270{
1271 struct ttm_operation_ctx ctx = { intr, no_wait_gpu };
1272 struct ttm_place placement_memtype = {
1273 .fpfn = 0,
1274 .lpfn = 0,
1275 .flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING
1276 };
1277 struct ttm_placement placement;
1278 struct ttm_mem_reg tmp_reg;
1279 int ret;
1280
1281 placement.num_placement = placement.num_busy_placement = 1;
1282 placement.placement = placement.busy_placement = &placement_memtype;
1283
1284 tmp_reg = *new_reg;
1285 tmp_reg.mm_node = NULL;
1286 ret = ttm_bo_mem_space(bo, &placement, &tmp_reg, &ctx);
1287 if (ret)
1288 return ret;
1289
1290 ret = ttm_bo_move_ttm(bo, &ctx, &tmp_reg);
1291 if (ret)
1292 goto out;
1293
1294 ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_gpu, new_reg);
1295 if (ret)
1296 goto out;
1297
1298out:
1299 ttm_bo_mem_put(bo, &tmp_reg);
1300 return ret;
1301}
1302
1303static void
1304nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, bool evict,
1305 struct ttm_mem_reg *new_reg)
1306{
1307 struct nouveau_mem *mem = new_reg ? nouveau_mem(new_reg) : NULL;
1308 struct nouveau_bo *nvbo = nouveau_bo(bo);
1309 struct nouveau_vma *vma;
1310
1311 /* ttm can now (stupidly) pass the driver bos it didn't create... */
1312 if (bo->destroy != nouveau_bo_del_ttm)
1313 return;
1314
1315 if (mem && new_reg->mem_type != TTM_PL_SYSTEM &&
1316 mem->mem.page == nvbo->page) {
1317 list_for_each_entry(vma, &nvbo->vma_list, head) {
1318 nouveau_vma_map(vma, mem);
1319 }
1320 } else {
1321 list_for_each_entry(vma, &nvbo->vma_list, head) {
1322 WARN_ON(ttm_bo_wait(bo, false, false));
1323 nouveau_vma_unmap(vma);
1324 }
1325 }
1326}
1327
1328static int
1329nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_reg,
1330 struct nouveau_drm_tile **new_tile)
1331{
1332 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1333 struct drm_device *dev = drm->dev;
1334 struct nouveau_bo *nvbo = nouveau_bo(bo);
1335 u64 offset = new_reg->start << PAGE_SHIFT;
1336
1337 *new_tile = NULL;
1338 if (new_reg->mem_type != TTM_PL_VRAM)
1339 return 0;
1340
1341 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
1342 *new_tile = nv10_bo_set_tiling(dev, offset, new_reg->size,
1343 nvbo->mode, nvbo->zeta);
1344 }
1345
1346 return 0;
1347}
1348
1349static void
1350nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo,
1351 struct nouveau_drm_tile *new_tile,
1352 struct nouveau_drm_tile **old_tile)
1353{
1354 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1355 struct drm_device *dev = drm->dev;
1356 struct dma_fence *fence = dma_resv_get_excl(bo->base.resv);
1357
1358 nv10_bo_put_tile_region(dev, *old_tile, fence);
1359 *old_tile = new_tile;
1360}
1361
1362static int
1363nouveau_bo_move(struct ttm_buffer_object *bo, bool evict,
1364 struct ttm_operation_ctx *ctx,
1365 struct ttm_mem_reg *new_reg)
1366{
1367 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1368 struct nouveau_bo *nvbo = nouveau_bo(bo);
1369 struct ttm_mem_reg *old_reg = &bo->mem;
1370 struct nouveau_drm_tile *new_tile = NULL;
1371 int ret = 0;
1372
1373 ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
1374 if (ret)
1375 return ret;
1376
1377 if (nvbo->pin_refcnt)
1378 NV_WARN(drm, "Moving pinned object %p!\n", nvbo);
1379
1380 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
1381 ret = nouveau_bo_vm_bind(bo, new_reg, &new_tile);
1382 if (ret)
1383 return ret;
1384 }
1385
1386 /* Fake bo copy. */
1387 if (old_reg->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
1388 BUG_ON(bo->mem.mm_node != NULL);
1389 bo->mem = *new_reg;
1390 new_reg->mm_node = NULL;
1391 goto out;
1392 }
1393
1394 /* Hardware assisted copy. */
1395 if (drm->ttm.move) {
1396 if (new_reg->mem_type == TTM_PL_SYSTEM)
1397 ret = nouveau_bo_move_flipd(bo, evict,
1398 ctx->interruptible,
1399 ctx->no_wait_gpu, new_reg);
1400 else if (old_reg->mem_type == TTM_PL_SYSTEM)
1401 ret = nouveau_bo_move_flips(bo, evict,
1402 ctx->interruptible,
1403 ctx->no_wait_gpu, new_reg);
1404 else
1405 ret = nouveau_bo_move_m2mf(bo, evict,
1406 ctx->interruptible,
1407 ctx->no_wait_gpu, new_reg);
1408 if (!ret)
1409 goto out;
1410 }
1411
1412 /* Fallback to software copy. */
1413 ret = ttm_bo_wait(bo, ctx->interruptible, ctx->no_wait_gpu);
1414 if (ret == 0)
1415 ret = ttm_bo_move_memcpy(bo, ctx, new_reg);
1416
1417out:
1418 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
1419 if (ret)
1420 nouveau_bo_vm_cleanup(bo, NULL, &new_tile);
1421 else
1422 nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
1423 }
1424
1425 return ret;
1426}
1427
1428static int
1429nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
1430{
1431 struct nouveau_bo *nvbo = nouveau_bo(bo);
1432
1433 return drm_vma_node_verify_access(&nvbo->bo.base.vma_node,
1434 filp->private_data);
1435}
1436
1437static int
1438nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *reg)
1439{
1440 struct ttm_mem_type_manager *man = &bdev->man[reg->mem_type];
1441 struct nouveau_drm *drm = nouveau_bdev(bdev);
1442 struct nvkm_device *device = nvxx_device(&drm->client.device);
1443 struct nouveau_mem *mem = nouveau_mem(reg);
1444
1445 reg->bus.addr = NULL;
1446 reg->bus.offset = 0;
1447 reg->bus.size = reg->num_pages << PAGE_SHIFT;
1448 reg->bus.base = 0;
1449 reg->bus.is_iomem = false;
1450 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
1451 return -EINVAL;
1452 switch (reg->mem_type) {
1453 case TTM_PL_SYSTEM:
1454 /* System memory */
1455 return 0;
1456 case TTM_PL_TT:
1457#if IS_ENABLED(CONFIG_AGP)
1458 if (drm->agp.bridge) {
1459 reg->bus.offset = reg->start << PAGE_SHIFT;
1460 reg->bus.base = drm->agp.base;
1461 reg->bus.is_iomem = !drm->agp.cma;
1462 }
1463#endif
1464 if (drm->client.mem->oclass < NVIF_CLASS_MEM_NV50 || !mem->kind)
1465 /* untiled */
1466 break;
1467 /* fall through - tiled memory */
1468 case TTM_PL_VRAM:
1469 reg->bus.offset = reg->start << PAGE_SHIFT;
1470 reg->bus.base = device->func->resource_addr(device, 1);
1471 reg->bus.is_iomem = true;
1472 if (drm->client.mem->oclass >= NVIF_CLASS_MEM_NV50) {
1473 union {
1474 struct nv50_mem_map_v0 nv50;
1475 struct gf100_mem_map_v0 gf100;
1476 } args;
1477 u64 handle, length;
1478 u32 argc = 0;
1479 int ret;
1480
1481 switch (mem->mem.object.oclass) {
1482 case NVIF_CLASS_MEM_NV50:
1483 args.nv50.version = 0;
1484 args.nv50.ro = 0;
1485 args.nv50.kind = mem->kind;
1486 args.nv50.comp = mem->comp;
1487 argc = sizeof(args.nv50);
1488 break;
1489 case NVIF_CLASS_MEM_GF100:
1490 args.gf100.version = 0;
1491 args.gf100.ro = 0;
1492 args.gf100.kind = mem->kind;
1493 argc = sizeof(args.gf100);
1494 break;
1495 default:
1496 WARN_ON(1);
1497 break;
1498 }
1499
1500 ret = nvif_object_map_handle(&mem->mem.object,
1501 &args, argc,
1502 &handle, &length);
1503 if (ret != 1)
1504 return ret ? ret : -EINVAL;
1505
1506 reg->bus.base = 0;
1507 reg->bus.offset = handle;
1508 }
1509 break;
1510 default:
1511 return -EINVAL;
1512 }
1513 return 0;
1514}
1515
1516static void
1517nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *reg)
1518{
1519 struct nouveau_drm *drm = nouveau_bdev(bdev);
1520 struct nouveau_mem *mem = nouveau_mem(reg);
1521
1522 if (drm->client.mem->oclass >= NVIF_CLASS_MEM_NV50) {
1523 switch (reg->mem_type) {
1524 case TTM_PL_TT:
1525 if (mem->kind)
1526 nvif_object_unmap_handle(&mem->mem.object);
1527 break;
1528 case TTM_PL_VRAM:
1529 nvif_object_unmap_handle(&mem->mem.object);
1530 break;
1531 default:
1532 break;
1533 }
1534 }
1535}
1536
1537static int
1538nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
1539{
1540 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1541 struct nouveau_bo *nvbo = nouveau_bo(bo);
1542 struct nvkm_device *device = nvxx_device(&drm->client.device);
1543 u32 mappable = device->func->resource_size(device, 1) >> PAGE_SHIFT;
1544 int i, ret;
1545
1546 /* as long as the bo isn't in vram, and isn't tiled, we've got
1547 * nothing to do here.
1548 */
1549 if (bo->mem.mem_type != TTM_PL_VRAM) {
1550 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA ||
1551 !nvbo->kind)
1552 return 0;
1553
1554 if (bo->mem.mem_type == TTM_PL_SYSTEM) {
1555 nouveau_bo_placement_set(nvbo, TTM_PL_TT, 0);
1556
1557 ret = nouveau_bo_validate(nvbo, false, false);
1558 if (ret)
1559 return ret;
1560 }
1561 return 0;
1562 }
1563
1564 /* make sure bo is in mappable vram */
1565 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA ||
1566 bo->mem.start + bo->mem.num_pages < mappable)
1567 return 0;
1568
1569 for (i = 0; i < nvbo->placement.num_placement; ++i) {
1570 nvbo->placements[i].fpfn = 0;
1571 nvbo->placements[i].lpfn = mappable;
1572 }
1573
1574 for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
1575 nvbo->busy_placements[i].fpfn = 0;
1576 nvbo->busy_placements[i].lpfn = mappable;
1577 }
1578
1579 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_VRAM, 0);
1580 return nouveau_bo_validate(nvbo, false, false);
1581}
1582
1583static int
1584nouveau_ttm_tt_populate(struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
1585{
1586 struct ttm_dma_tt *ttm_dma = (void *)ttm;
1587 struct nouveau_drm *drm;
1588 struct device *dev;
1589 unsigned i;
1590 int r;
1591 bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
1592
1593 if (ttm->state != tt_unpopulated)
1594 return 0;
1595
1596 if (slave && ttm->sg) {
1597 /* make userspace faulting work */
1598 drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages,
1599 ttm_dma->dma_address, ttm->num_pages);
1600 ttm->state = tt_unbound;
1601 return 0;
1602 }
1603
1604 drm = nouveau_bdev(ttm->bdev);
1605 dev = drm->dev->dev;
1606
1607#if IS_ENABLED(CONFIG_AGP)
1608 if (drm->agp.bridge) {
1609 return ttm_agp_tt_populate(ttm, ctx);
1610 }
1611#endif
1612
1613#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
1614 if (swiotlb_nr_tbl()) {
1615 return ttm_dma_populate((void *)ttm, dev, ctx);
1616 }
1617#endif
1618
1619 r = ttm_pool_populate(ttm, ctx);
1620 if (r) {
1621 return r;
1622 }
1623
1624 for (i = 0; i < ttm->num_pages; i++) {
1625 dma_addr_t addr;
1626
1627 addr = dma_map_page(dev, ttm->pages[i], 0, PAGE_SIZE,
1628 DMA_BIDIRECTIONAL);
1629
1630 if (dma_mapping_error(dev, addr)) {
1631 while (i--) {
1632 dma_unmap_page(dev, ttm_dma->dma_address[i],
1633 PAGE_SIZE, DMA_BIDIRECTIONAL);
1634 ttm_dma->dma_address[i] = 0;
1635 }
1636 ttm_pool_unpopulate(ttm);
1637 return -EFAULT;
1638 }
1639
1640 ttm_dma->dma_address[i] = addr;
1641 }
1642 return 0;
1643}
1644
1645static void
1646nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
1647{
1648 struct ttm_dma_tt *ttm_dma = (void *)ttm;
1649 struct nouveau_drm *drm;
1650 struct device *dev;
1651 unsigned i;
1652 bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
1653
1654 if (slave)
1655 return;
1656
1657 drm = nouveau_bdev(ttm->bdev);
1658 dev = drm->dev->dev;
1659
1660#if IS_ENABLED(CONFIG_AGP)
1661 if (drm->agp.bridge) {
1662 ttm_agp_tt_unpopulate(ttm);
1663 return;
1664 }
1665#endif
1666
1667#if IS_ENABLED(CONFIG_SWIOTLB) && IS_ENABLED(CONFIG_X86)
1668 if (swiotlb_nr_tbl()) {
1669 ttm_dma_unpopulate((void *)ttm, dev);
1670 return;
1671 }
1672#endif
1673
1674 for (i = 0; i < ttm->num_pages; i++) {
1675 if (ttm_dma->dma_address[i]) {
1676 dma_unmap_page(dev, ttm_dma->dma_address[i], PAGE_SIZE,
1677 DMA_BIDIRECTIONAL);
1678 }
1679 }
1680
1681 ttm_pool_unpopulate(ttm);
1682}
1683
1684void
1685nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence, bool exclusive)
1686{
1687 struct dma_resv *resv = nvbo->bo.base.resv;
1688
1689 if (exclusive)
1690 dma_resv_add_excl_fence(resv, &fence->base);
1691 else if (fence)
1692 dma_resv_add_shared_fence(resv, &fence->base);
1693}
1694
1695struct ttm_bo_driver nouveau_bo_driver = {
1696 .ttm_tt_create = &nouveau_ttm_tt_create,
1697 .ttm_tt_populate = &nouveau_ttm_tt_populate,
1698 .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate,
1699 .invalidate_caches = nouveau_bo_invalidate_caches,
1700 .init_mem_type = nouveau_bo_init_mem_type,
1701 .eviction_valuable = ttm_bo_eviction_valuable,
1702 .evict_flags = nouveau_bo_evict_flags,
1703 .move_notify = nouveau_bo_move_ntfy,
1704 .move = nouveau_bo_move,
1705 .verify_access = nouveau_bo_verify_access,
1706 .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify,
1707 .io_mem_reserve = &nouveau_ttm_io_mem_reserve,
1708 .io_mem_free = &nouveau_ttm_io_mem_free,
1709};
1/*
2 * Copyright 2007 Dave Airlied
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * 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 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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/*
25 * Authors: Dave Airlied <airlied@linux.ie>
26 * Ben Skeggs <darktama@iinet.net.au>
27 * Jeremy Kolb <jkolb@brandeis.edu>
28 */
29
30#include <linux/dma-mapping.h>
31
32#include "nouveau_drv.h"
33#include "nouveau_chan.h"
34#include "nouveau_fence.h"
35
36#include "nouveau_bo.h"
37#include "nouveau_ttm.h"
38#include "nouveau_gem.h"
39#include "nouveau_mem.h"
40#include "nouveau_vmm.h"
41
42#include <nvif/class.h>
43#include <nvif/if500b.h>
44#include <nvif/if900b.h>
45
46static int nouveau_ttm_tt_bind(struct ttm_device *bdev, struct ttm_tt *ttm,
47 struct ttm_resource *reg);
48static void nouveau_ttm_tt_unbind(struct ttm_device *bdev, struct ttm_tt *ttm);
49
50/*
51 * NV10-NV40 tiling helpers
52 */
53
54static void
55nv10_bo_update_tile_region(struct drm_device *dev, struct nouveau_drm_tile *reg,
56 u32 addr, u32 size, u32 pitch, u32 flags)
57{
58 struct nouveau_drm *drm = nouveau_drm(dev);
59 int i = reg - drm->tile.reg;
60 struct nvkm_fb *fb = nvxx_fb(&drm->client.device);
61 struct nvkm_fb_tile *tile = &fb->tile.region[i];
62
63 nouveau_fence_unref(®->fence);
64
65 if (tile->pitch)
66 nvkm_fb_tile_fini(fb, i, tile);
67
68 if (pitch)
69 nvkm_fb_tile_init(fb, i, addr, size, pitch, flags, tile);
70
71 nvkm_fb_tile_prog(fb, i, tile);
72}
73
74static struct nouveau_drm_tile *
75nv10_bo_get_tile_region(struct drm_device *dev, int i)
76{
77 struct nouveau_drm *drm = nouveau_drm(dev);
78 struct nouveau_drm_tile *tile = &drm->tile.reg[i];
79
80 spin_lock(&drm->tile.lock);
81
82 if (!tile->used &&
83 (!tile->fence || nouveau_fence_done(tile->fence)))
84 tile->used = true;
85 else
86 tile = NULL;
87
88 spin_unlock(&drm->tile.lock);
89 return tile;
90}
91
92static void
93nv10_bo_put_tile_region(struct drm_device *dev, struct nouveau_drm_tile *tile,
94 struct dma_fence *fence)
95{
96 struct nouveau_drm *drm = nouveau_drm(dev);
97
98 if (tile) {
99 spin_lock(&drm->tile.lock);
100 tile->fence = (struct nouveau_fence *)dma_fence_get(fence);
101 tile->used = false;
102 spin_unlock(&drm->tile.lock);
103 }
104}
105
106static struct nouveau_drm_tile *
107nv10_bo_set_tiling(struct drm_device *dev, u32 addr,
108 u32 size, u32 pitch, u32 zeta)
109{
110 struct nouveau_drm *drm = nouveau_drm(dev);
111 struct nvkm_fb *fb = nvxx_fb(&drm->client.device);
112 struct nouveau_drm_tile *tile, *found = NULL;
113 int i;
114
115 for (i = 0; i < fb->tile.regions; i++) {
116 tile = nv10_bo_get_tile_region(dev, i);
117
118 if (pitch && !found) {
119 found = tile;
120 continue;
121
122 } else if (tile && fb->tile.region[i].pitch) {
123 /* Kill an unused tile region. */
124 nv10_bo_update_tile_region(dev, tile, 0, 0, 0, 0);
125 }
126
127 nv10_bo_put_tile_region(dev, tile, NULL);
128 }
129
130 if (found)
131 nv10_bo_update_tile_region(dev, found, addr, size, pitch, zeta);
132 return found;
133}
134
135static void
136nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
137{
138 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
139 struct drm_device *dev = drm->dev;
140 struct nouveau_bo *nvbo = nouveau_bo(bo);
141
142 WARN_ON(nvbo->bo.pin_count > 0);
143 nouveau_bo_del_io_reserve_lru(bo);
144 nv10_bo_put_tile_region(dev, nvbo->tile, NULL);
145
146 /*
147 * If nouveau_bo_new() allocated this buffer, the GEM object was never
148 * initialized, so don't attempt to release it.
149 */
150 if (bo->base.dev)
151 drm_gem_object_release(&bo->base);
152 else
153 dma_resv_fini(&bo->base._resv);
154
155 kfree(nvbo);
156}
157
158static inline u64
159roundup_64(u64 x, u32 y)
160{
161 x += y - 1;
162 do_div(x, y);
163 return x * y;
164}
165
166static void
167nouveau_bo_fixup_align(struct nouveau_bo *nvbo, int *align, u64 *size)
168{
169 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
170 struct nvif_device *device = &drm->client.device;
171
172 if (device->info.family < NV_DEVICE_INFO_V0_TESLA) {
173 if (nvbo->mode) {
174 if (device->info.chipset >= 0x40) {
175 *align = 65536;
176 *size = roundup_64(*size, 64 * nvbo->mode);
177
178 } else if (device->info.chipset >= 0x30) {
179 *align = 32768;
180 *size = roundup_64(*size, 64 * nvbo->mode);
181
182 } else if (device->info.chipset >= 0x20) {
183 *align = 16384;
184 *size = roundup_64(*size, 64 * nvbo->mode);
185
186 } else if (device->info.chipset >= 0x10) {
187 *align = 16384;
188 *size = roundup_64(*size, 32 * nvbo->mode);
189 }
190 }
191 } else {
192 *size = roundup_64(*size, (1 << nvbo->page));
193 *align = max((1 << nvbo->page), *align);
194 }
195
196 *size = roundup_64(*size, PAGE_SIZE);
197}
198
199struct nouveau_bo *
200nouveau_bo_alloc(struct nouveau_cli *cli, u64 *size, int *align, u32 domain,
201 u32 tile_mode, u32 tile_flags)
202{
203 struct nouveau_drm *drm = cli->drm;
204 struct nouveau_bo *nvbo;
205 struct nvif_mmu *mmu = &cli->mmu;
206 struct nvif_vmm *vmm = cli->svm.cli ? &cli->svm.vmm : &cli->vmm.vmm;
207 int i, pi = -1;
208
209 if (!*size) {
210 NV_WARN(drm, "skipped size %016llx\n", *size);
211 return ERR_PTR(-EINVAL);
212 }
213
214 nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
215 if (!nvbo)
216 return ERR_PTR(-ENOMEM);
217 INIT_LIST_HEAD(&nvbo->head);
218 INIT_LIST_HEAD(&nvbo->entry);
219 INIT_LIST_HEAD(&nvbo->vma_list);
220 nvbo->bo.bdev = &drm->ttm.bdev;
221
222 /* This is confusing, and doesn't actually mean we want an uncached
223 * mapping, but is what NOUVEAU_GEM_DOMAIN_COHERENT gets translated
224 * into in nouveau_gem_new().
225 */
226 if (domain & NOUVEAU_GEM_DOMAIN_COHERENT) {
227 /* Determine if we can get a cache-coherent map, forcing
228 * uncached mapping if we can't.
229 */
230 if (!nouveau_drm_use_coherent_gpu_mapping(drm))
231 nvbo->force_coherent = true;
232 }
233
234 if (cli->device.info.family >= NV_DEVICE_INFO_V0_FERMI) {
235 nvbo->kind = (tile_flags & 0x0000ff00) >> 8;
236 if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) {
237 kfree(nvbo);
238 return ERR_PTR(-EINVAL);
239 }
240
241 nvbo->comp = mmu->kind[nvbo->kind] != nvbo->kind;
242 } else
243 if (cli->device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
244 nvbo->kind = (tile_flags & 0x00007f00) >> 8;
245 nvbo->comp = (tile_flags & 0x00030000) >> 16;
246 if (!nvif_mmu_kind_valid(mmu, nvbo->kind)) {
247 kfree(nvbo);
248 return ERR_PTR(-EINVAL);
249 }
250 } else {
251 nvbo->zeta = (tile_flags & 0x00000007);
252 }
253 nvbo->mode = tile_mode;
254 nvbo->contig = !(tile_flags & NOUVEAU_GEM_TILE_NONCONTIG);
255
256 /* Determine the desirable target GPU page size for the buffer. */
257 for (i = 0; i < vmm->page_nr; i++) {
258 /* Because we cannot currently allow VMM maps to fail
259 * during buffer migration, we need to determine page
260 * size for the buffer up-front, and pre-allocate its
261 * page tables.
262 *
263 * Skip page sizes that can't support needed domains.
264 */
265 if (cli->device.info.family > NV_DEVICE_INFO_V0_CURIE &&
266 (domain & NOUVEAU_GEM_DOMAIN_VRAM) && !vmm->page[i].vram)
267 continue;
268 if ((domain & NOUVEAU_GEM_DOMAIN_GART) &&
269 (!vmm->page[i].host || vmm->page[i].shift > PAGE_SHIFT))
270 continue;
271
272 /* Select this page size if it's the first that supports
273 * the potential memory domains, or when it's compatible
274 * with the requested compression settings.
275 */
276 if (pi < 0 || !nvbo->comp || vmm->page[i].comp)
277 pi = i;
278
279 /* Stop once the buffer is larger than the current page size. */
280 if (*size >= 1ULL << vmm->page[i].shift)
281 break;
282 }
283
284 if (WARN_ON(pi < 0))
285 return ERR_PTR(-EINVAL);
286
287 /* Disable compression if suitable settings couldn't be found. */
288 if (nvbo->comp && !vmm->page[pi].comp) {
289 if (mmu->object.oclass >= NVIF_CLASS_MMU_GF100)
290 nvbo->kind = mmu->kind[nvbo->kind];
291 nvbo->comp = 0;
292 }
293 nvbo->page = vmm->page[pi].shift;
294
295 nouveau_bo_fixup_align(nvbo, align, size);
296
297 return nvbo;
298}
299
300int
301nouveau_bo_init(struct nouveau_bo *nvbo, u64 size, int align, u32 domain,
302 struct sg_table *sg, struct dma_resv *robj)
303{
304 int type = sg ? ttm_bo_type_sg : ttm_bo_type_device;
305 int ret;
306
307 nouveau_bo_placement_set(nvbo, domain, 0);
308 INIT_LIST_HEAD(&nvbo->io_reserve_lru);
309
310 ret = ttm_bo_init(nvbo->bo.bdev, &nvbo->bo, size, type,
311 &nvbo->placement, align >> PAGE_SHIFT, false, sg,
312 robj, nouveau_bo_del_ttm);
313 if (ret) {
314 /* ttm will call nouveau_bo_del_ttm if it fails.. */
315 return ret;
316 }
317
318 return 0;
319}
320
321int
322nouveau_bo_new(struct nouveau_cli *cli, u64 size, int align,
323 uint32_t domain, uint32_t tile_mode, uint32_t tile_flags,
324 struct sg_table *sg, struct dma_resv *robj,
325 struct nouveau_bo **pnvbo)
326{
327 struct nouveau_bo *nvbo;
328 int ret;
329
330 nvbo = nouveau_bo_alloc(cli, &size, &align, domain, tile_mode,
331 tile_flags);
332 if (IS_ERR(nvbo))
333 return PTR_ERR(nvbo);
334
335 nvbo->bo.base.size = size;
336 dma_resv_init(&nvbo->bo.base._resv);
337 drm_vma_node_reset(&nvbo->bo.base.vma_node);
338
339 ret = nouveau_bo_init(nvbo, size, align, domain, sg, robj);
340 if (ret)
341 return ret;
342
343 *pnvbo = nvbo;
344 return 0;
345}
346
347static void
348set_placement_list(struct ttm_place *pl, unsigned *n, uint32_t domain)
349{
350 *n = 0;
351
352 if (domain & NOUVEAU_GEM_DOMAIN_VRAM) {
353 pl[*n].mem_type = TTM_PL_VRAM;
354 pl[*n].flags = 0;
355 (*n)++;
356 }
357 if (domain & NOUVEAU_GEM_DOMAIN_GART) {
358 pl[*n].mem_type = TTM_PL_TT;
359 pl[*n].flags = 0;
360 (*n)++;
361 }
362 if (domain & NOUVEAU_GEM_DOMAIN_CPU) {
363 pl[*n].mem_type = TTM_PL_SYSTEM;
364 pl[(*n)++].flags = 0;
365 }
366}
367
368static void
369set_placement_range(struct nouveau_bo *nvbo, uint32_t domain)
370{
371 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
372 u64 vram_size = drm->client.device.info.ram_size;
373 unsigned i, fpfn, lpfn;
374
375 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS &&
376 nvbo->mode && (domain & NOUVEAU_GEM_DOMAIN_VRAM) &&
377 nvbo->bo.base.size < vram_size / 4) {
378 /*
379 * Make sure that the color and depth buffers are handled
380 * by independent memory controller units. Up to a 9x
381 * speed up when alpha-blending and depth-test are enabled
382 * at the same time.
383 */
384 if (nvbo->zeta) {
385 fpfn = (vram_size / 2) >> PAGE_SHIFT;
386 lpfn = ~0;
387 } else {
388 fpfn = 0;
389 lpfn = (vram_size / 2) >> PAGE_SHIFT;
390 }
391 for (i = 0; i < nvbo->placement.num_placement; ++i) {
392 nvbo->placements[i].fpfn = fpfn;
393 nvbo->placements[i].lpfn = lpfn;
394 }
395 for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
396 nvbo->busy_placements[i].fpfn = fpfn;
397 nvbo->busy_placements[i].lpfn = lpfn;
398 }
399 }
400}
401
402void
403nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t domain,
404 uint32_t busy)
405{
406 struct ttm_placement *pl = &nvbo->placement;
407
408 pl->placement = nvbo->placements;
409 set_placement_list(nvbo->placements, &pl->num_placement, domain);
410
411 pl->busy_placement = nvbo->busy_placements;
412 set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
413 domain | busy);
414
415 set_placement_range(nvbo, domain);
416}
417
418int
419nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t domain, bool contig)
420{
421 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
422 struct ttm_buffer_object *bo = &nvbo->bo;
423 bool force = false, evict = false;
424 int ret;
425
426 ret = ttm_bo_reserve(bo, false, false, NULL);
427 if (ret)
428 return ret;
429
430 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
431 domain == NOUVEAU_GEM_DOMAIN_VRAM && contig) {
432 if (!nvbo->contig) {
433 nvbo->contig = true;
434 force = true;
435 evict = true;
436 }
437 }
438
439 if (nvbo->bo.pin_count) {
440 bool error = evict;
441
442 switch (bo->resource->mem_type) {
443 case TTM_PL_VRAM:
444 error |= !(domain & NOUVEAU_GEM_DOMAIN_VRAM);
445 break;
446 case TTM_PL_TT:
447 error |= !(domain & NOUVEAU_GEM_DOMAIN_GART);
448 break;
449 default:
450 break;
451 }
452
453 if (error) {
454 NV_ERROR(drm, "bo %p pinned elsewhere: "
455 "0x%08x vs 0x%08x\n", bo,
456 bo->resource->mem_type, domain);
457 ret = -EBUSY;
458 }
459 ttm_bo_pin(&nvbo->bo);
460 goto out;
461 }
462
463 if (evict) {
464 nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_GART, 0);
465 ret = nouveau_bo_validate(nvbo, false, false);
466 if (ret)
467 goto out;
468 }
469
470 nouveau_bo_placement_set(nvbo, domain, 0);
471 ret = nouveau_bo_validate(nvbo, false, false);
472 if (ret)
473 goto out;
474
475 ttm_bo_pin(&nvbo->bo);
476
477 switch (bo->resource->mem_type) {
478 case TTM_PL_VRAM:
479 drm->gem.vram_available -= bo->base.size;
480 break;
481 case TTM_PL_TT:
482 drm->gem.gart_available -= bo->base.size;
483 break;
484 default:
485 break;
486 }
487
488out:
489 if (force && ret)
490 nvbo->contig = false;
491 ttm_bo_unreserve(bo);
492 return ret;
493}
494
495int
496nouveau_bo_unpin(struct nouveau_bo *nvbo)
497{
498 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
499 struct ttm_buffer_object *bo = &nvbo->bo;
500 int ret;
501
502 ret = ttm_bo_reserve(bo, false, false, NULL);
503 if (ret)
504 return ret;
505
506 ttm_bo_unpin(&nvbo->bo);
507 if (!nvbo->bo.pin_count) {
508 switch (bo->resource->mem_type) {
509 case TTM_PL_VRAM:
510 drm->gem.vram_available += bo->base.size;
511 break;
512 case TTM_PL_TT:
513 drm->gem.gart_available += bo->base.size;
514 break;
515 default:
516 break;
517 }
518 }
519
520 ttm_bo_unreserve(bo);
521 return 0;
522}
523
524int
525nouveau_bo_map(struct nouveau_bo *nvbo)
526{
527 int ret;
528
529 ret = ttm_bo_reserve(&nvbo->bo, false, false, NULL);
530 if (ret)
531 return ret;
532
533 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.resource->num_pages, &nvbo->kmap);
534
535 ttm_bo_unreserve(&nvbo->bo);
536 return ret;
537}
538
539void
540nouveau_bo_unmap(struct nouveau_bo *nvbo)
541{
542 if (!nvbo)
543 return;
544
545 ttm_bo_kunmap(&nvbo->kmap);
546}
547
548void
549nouveau_bo_sync_for_device(struct nouveau_bo *nvbo)
550{
551 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
552 struct ttm_tt *ttm_dma = (struct ttm_tt *)nvbo->bo.ttm;
553 int i, j;
554
555 if (!ttm_dma || !ttm_dma->dma_address)
556 return;
557 if (!ttm_dma->pages) {
558 NV_DEBUG(drm, "ttm_dma 0x%p: pages NULL\n", ttm_dma);
559 return;
560 }
561
562 /* Don't waste time looping if the object is coherent */
563 if (nvbo->force_coherent)
564 return;
565
566 i = 0;
567 while (i < ttm_dma->num_pages) {
568 struct page *p = ttm_dma->pages[i];
569 size_t num_pages = 1;
570
571 for (j = i + 1; j < ttm_dma->num_pages; ++j) {
572 if (++p != ttm_dma->pages[j])
573 break;
574
575 ++num_pages;
576 }
577 dma_sync_single_for_device(drm->dev->dev,
578 ttm_dma->dma_address[i],
579 num_pages * PAGE_SIZE, DMA_TO_DEVICE);
580 i += num_pages;
581 }
582}
583
584void
585nouveau_bo_sync_for_cpu(struct nouveau_bo *nvbo)
586{
587 struct nouveau_drm *drm = nouveau_bdev(nvbo->bo.bdev);
588 struct ttm_tt *ttm_dma = (struct ttm_tt *)nvbo->bo.ttm;
589 int i, j;
590
591 if (!ttm_dma || !ttm_dma->dma_address)
592 return;
593 if (!ttm_dma->pages) {
594 NV_DEBUG(drm, "ttm_dma 0x%p: pages NULL\n", ttm_dma);
595 return;
596 }
597
598 /* Don't waste time looping if the object is coherent */
599 if (nvbo->force_coherent)
600 return;
601
602 i = 0;
603 while (i < ttm_dma->num_pages) {
604 struct page *p = ttm_dma->pages[i];
605 size_t num_pages = 1;
606
607 for (j = i + 1; j < ttm_dma->num_pages; ++j) {
608 if (++p != ttm_dma->pages[j])
609 break;
610
611 ++num_pages;
612 }
613
614 dma_sync_single_for_cpu(drm->dev->dev, ttm_dma->dma_address[i],
615 num_pages * PAGE_SIZE, DMA_FROM_DEVICE);
616 i += num_pages;
617 }
618}
619
620void nouveau_bo_add_io_reserve_lru(struct ttm_buffer_object *bo)
621{
622 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
623 struct nouveau_bo *nvbo = nouveau_bo(bo);
624
625 mutex_lock(&drm->ttm.io_reserve_mutex);
626 list_move_tail(&nvbo->io_reserve_lru, &drm->ttm.io_reserve_lru);
627 mutex_unlock(&drm->ttm.io_reserve_mutex);
628}
629
630void nouveau_bo_del_io_reserve_lru(struct ttm_buffer_object *bo)
631{
632 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
633 struct nouveau_bo *nvbo = nouveau_bo(bo);
634
635 mutex_lock(&drm->ttm.io_reserve_mutex);
636 list_del_init(&nvbo->io_reserve_lru);
637 mutex_unlock(&drm->ttm.io_reserve_mutex);
638}
639
640int
641nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible,
642 bool no_wait_gpu)
643{
644 struct ttm_operation_ctx ctx = { interruptible, no_wait_gpu };
645 int ret;
646
647 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, &ctx);
648 if (ret)
649 return ret;
650
651 nouveau_bo_sync_for_device(nvbo);
652
653 return 0;
654}
655
656void
657nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val)
658{
659 bool is_iomem;
660 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
661
662 mem += index;
663
664 if (is_iomem)
665 iowrite16_native(val, (void __force __iomem *)mem);
666 else
667 *mem = val;
668}
669
670u32
671nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index)
672{
673 bool is_iomem;
674 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
675
676 mem += index;
677
678 if (is_iomem)
679 return ioread32_native((void __force __iomem *)mem);
680 else
681 return *mem;
682}
683
684void
685nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
686{
687 bool is_iomem;
688 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
689
690 mem += index;
691
692 if (is_iomem)
693 iowrite32_native(val, (void __force __iomem *)mem);
694 else
695 *mem = val;
696}
697
698static struct ttm_tt *
699nouveau_ttm_tt_create(struct ttm_buffer_object *bo, uint32_t page_flags)
700{
701#if IS_ENABLED(CONFIG_AGP)
702 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
703
704 if (drm->agp.bridge) {
705 return ttm_agp_tt_create(bo, drm->agp.bridge, page_flags);
706 }
707#endif
708
709 return nouveau_sgdma_create_ttm(bo, page_flags);
710}
711
712static int
713nouveau_ttm_tt_bind(struct ttm_device *bdev, struct ttm_tt *ttm,
714 struct ttm_resource *reg)
715{
716#if IS_ENABLED(CONFIG_AGP)
717 struct nouveau_drm *drm = nouveau_bdev(bdev);
718#endif
719 if (!reg)
720 return -EINVAL;
721#if IS_ENABLED(CONFIG_AGP)
722 if (drm->agp.bridge)
723 return ttm_agp_bind(ttm, reg);
724#endif
725 return nouveau_sgdma_bind(bdev, ttm, reg);
726}
727
728static void
729nouveau_ttm_tt_unbind(struct ttm_device *bdev, struct ttm_tt *ttm)
730{
731#if IS_ENABLED(CONFIG_AGP)
732 struct nouveau_drm *drm = nouveau_bdev(bdev);
733
734 if (drm->agp.bridge) {
735 ttm_agp_unbind(ttm);
736 return;
737 }
738#endif
739 nouveau_sgdma_unbind(bdev, ttm);
740}
741
742static void
743nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
744{
745 struct nouveau_bo *nvbo = nouveau_bo(bo);
746
747 switch (bo->resource->mem_type) {
748 case TTM_PL_VRAM:
749 nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_GART,
750 NOUVEAU_GEM_DOMAIN_CPU);
751 break;
752 default:
753 nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_CPU, 0);
754 break;
755 }
756
757 *pl = nvbo->placement;
758}
759
760static int
761nouveau_bo_move_prep(struct nouveau_drm *drm, struct ttm_buffer_object *bo,
762 struct ttm_resource *reg)
763{
764 struct nouveau_mem *old_mem = nouveau_mem(bo->resource);
765 struct nouveau_mem *new_mem = nouveau_mem(reg);
766 struct nvif_vmm *vmm = &drm->client.vmm.vmm;
767 int ret;
768
769 ret = nvif_vmm_get(vmm, LAZY, false, old_mem->mem.page, 0,
770 old_mem->mem.size, &old_mem->vma[0]);
771 if (ret)
772 return ret;
773
774 ret = nvif_vmm_get(vmm, LAZY, false, new_mem->mem.page, 0,
775 new_mem->mem.size, &old_mem->vma[1]);
776 if (ret)
777 goto done;
778
779 ret = nouveau_mem_map(old_mem, vmm, &old_mem->vma[0]);
780 if (ret)
781 goto done;
782
783 ret = nouveau_mem_map(new_mem, vmm, &old_mem->vma[1]);
784done:
785 if (ret) {
786 nvif_vmm_put(vmm, &old_mem->vma[1]);
787 nvif_vmm_put(vmm, &old_mem->vma[0]);
788 }
789 return 0;
790}
791
792static int
793nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict,
794 struct ttm_operation_ctx *ctx,
795 struct ttm_resource *new_reg)
796{
797 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
798 struct nouveau_channel *chan = drm->ttm.chan;
799 struct nouveau_cli *cli = (void *)chan->user.client;
800 struct nouveau_fence *fence;
801 int ret;
802
803 /* create temporary vmas for the transfer and attach them to the
804 * old nvkm_mem node, these will get cleaned up after ttm has
805 * destroyed the ttm_resource
806 */
807 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA) {
808 ret = nouveau_bo_move_prep(drm, bo, new_reg);
809 if (ret)
810 return ret;
811 }
812
813 if (drm_drv_uses_atomic_modeset(drm->dev))
814 mutex_lock(&cli->mutex);
815 else
816 mutex_lock_nested(&cli->mutex, SINGLE_DEPTH_NESTING);
817 ret = nouveau_fence_sync(nouveau_bo(bo), chan, true, ctx->interruptible);
818 if (ret == 0) {
819 ret = drm->ttm.move(chan, bo, bo->resource, new_reg);
820 if (ret == 0) {
821 ret = nouveau_fence_new(chan, false, &fence);
822 if (ret == 0) {
823 ret = ttm_bo_move_accel_cleanup(bo,
824 &fence->base,
825 evict, false,
826 new_reg);
827 nouveau_fence_unref(&fence);
828 }
829 }
830 }
831 mutex_unlock(&cli->mutex);
832 return ret;
833}
834
835void
836nouveau_bo_move_init(struct nouveau_drm *drm)
837{
838 static const struct _method_table {
839 const char *name;
840 int engine;
841 s32 oclass;
842 int (*exec)(struct nouveau_channel *,
843 struct ttm_buffer_object *,
844 struct ttm_resource *, struct ttm_resource *);
845 int (*init)(struct nouveau_channel *, u32 handle);
846 } _methods[] = {
847 { "COPY", 4, 0xc7b5, nve0_bo_move_copy, nve0_bo_move_init },
848 { "COPY", 4, 0xc5b5, nve0_bo_move_copy, nve0_bo_move_init },
849 { "GRCE", 0, 0xc5b5, nve0_bo_move_copy, nvc0_bo_move_init },
850 { "COPY", 4, 0xc3b5, nve0_bo_move_copy, nve0_bo_move_init },
851 { "GRCE", 0, 0xc3b5, nve0_bo_move_copy, nvc0_bo_move_init },
852 { "COPY", 4, 0xc1b5, nve0_bo_move_copy, nve0_bo_move_init },
853 { "GRCE", 0, 0xc1b5, nve0_bo_move_copy, nvc0_bo_move_init },
854 { "COPY", 4, 0xc0b5, nve0_bo_move_copy, nve0_bo_move_init },
855 { "GRCE", 0, 0xc0b5, nve0_bo_move_copy, nvc0_bo_move_init },
856 { "COPY", 4, 0xb0b5, nve0_bo_move_copy, nve0_bo_move_init },
857 { "GRCE", 0, 0xb0b5, nve0_bo_move_copy, nvc0_bo_move_init },
858 { "COPY", 4, 0xa0b5, nve0_bo_move_copy, nve0_bo_move_init },
859 { "GRCE", 0, 0xa0b5, nve0_bo_move_copy, nvc0_bo_move_init },
860 { "COPY1", 5, 0x90b8, nvc0_bo_move_copy, nvc0_bo_move_init },
861 { "COPY0", 4, 0x90b5, nvc0_bo_move_copy, nvc0_bo_move_init },
862 { "COPY", 0, 0x85b5, nva3_bo_move_copy, nv50_bo_move_init },
863 { "CRYPT", 0, 0x74c1, nv84_bo_move_exec, nv50_bo_move_init },
864 { "M2MF", 0, 0x9039, nvc0_bo_move_m2mf, nvc0_bo_move_init },
865 { "M2MF", 0, 0x5039, nv50_bo_move_m2mf, nv50_bo_move_init },
866 { "M2MF", 0, 0x0039, nv04_bo_move_m2mf, nv04_bo_move_init },
867 {},
868 };
869 const struct _method_table *mthd = _methods;
870 const char *name = "CPU";
871 int ret;
872
873 do {
874 struct nouveau_channel *chan;
875
876 if (mthd->engine)
877 chan = drm->cechan;
878 else
879 chan = drm->channel;
880 if (chan == NULL)
881 continue;
882
883 ret = nvif_object_ctor(&chan->user, "ttmBoMove",
884 mthd->oclass | (mthd->engine << 16),
885 mthd->oclass, NULL, 0,
886 &drm->ttm.copy);
887 if (ret == 0) {
888 ret = mthd->init(chan, drm->ttm.copy.handle);
889 if (ret) {
890 nvif_object_dtor(&drm->ttm.copy);
891 continue;
892 }
893
894 drm->ttm.move = mthd->exec;
895 drm->ttm.chan = chan;
896 name = mthd->name;
897 break;
898 }
899 } while ((++mthd)->exec);
900
901 NV_INFO(drm, "MM: using %s for buffer copies\n", name);
902}
903
904static void nouveau_bo_move_ntfy(struct ttm_buffer_object *bo,
905 struct ttm_resource *new_reg)
906{
907 struct nouveau_mem *mem = new_reg ? nouveau_mem(new_reg) : NULL;
908 struct nouveau_bo *nvbo = nouveau_bo(bo);
909 struct nouveau_vma *vma;
910
911 /* ttm can now (stupidly) pass the driver bos it didn't create... */
912 if (bo->destroy != nouveau_bo_del_ttm)
913 return;
914
915 nouveau_bo_del_io_reserve_lru(bo);
916
917 if (mem && new_reg->mem_type != TTM_PL_SYSTEM &&
918 mem->mem.page == nvbo->page) {
919 list_for_each_entry(vma, &nvbo->vma_list, head) {
920 nouveau_vma_map(vma, mem);
921 }
922 } else {
923 list_for_each_entry(vma, &nvbo->vma_list, head) {
924 WARN_ON(ttm_bo_wait(bo, false, false));
925 nouveau_vma_unmap(vma);
926 }
927 }
928
929 if (new_reg)
930 nvbo->offset = (new_reg->start << PAGE_SHIFT);
931
932}
933
934static int
935nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_resource *new_reg,
936 struct nouveau_drm_tile **new_tile)
937{
938 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
939 struct drm_device *dev = drm->dev;
940 struct nouveau_bo *nvbo = nouveau_bo(bo);
941 u64 offset = new_reg->start << PAGE_SHIFT;
942
943 *new_tile = NULL;
944 if (new_reg->mem_type != TTM_PL_VRAM)
945 return 0;
946
947 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
948 *new_tile = nv10_bo_set_tiling(dev, offset, bo->base.size,
949 nvbo->mode, nvbo->zeta);
950 }
951
952 return 0;
953}
954
955static void
956nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo,
957 struct nouveau_drm_tile *new_tile,
958 struct nouveau_drm_tile **old_tile)
959{
960 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
961 struct drm_device *dev = drm->dev;
962 struct dma_fence *fence = dma_resv_excl_fence(bo->base.resv);
963
964 nv10_bo_put_tile_region(dev, *old_tile, fence);
965 *old_tile = new_tile;
966}
967
968static int
969nouveau_bo_move(struct ttm_buffer_object *bo, bool evict,
970 struct ttm_operation_ctx *ctx,
971 struct ttm_resource *new_reg,
972 struct ttm_place *hop)
973{
974 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
975 struct nouveau_bo *nvbo = nouveau_bo(bo);
976 struct ttm_resource *old_reg = bo->resource;
977 struct nouveau_drm_tile *new_tile = NULL;
978 int ret = 0;
979
980
981 if (new_reg->mem_type == TTM_PL_TT) {
982 ret = nouveau_ttm_tt_bind(bo->bdev, bo->ttm, new_reg);
983 if (ret)
984 return ret;
985 }
986
987 nouveau_bo_move_ntfy(bo, new_reg);
988 ret = ttm_bo_wait_ctx(bo, ctx);
989 if (ret)
990 goto out_ntfy;
991
992 if (nvbo->bo.pin_count)
993 NV_WARN(drm, "Moving pinned object %p!\n", nvbo);
994
995 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
996 ret = nouveau_bo_vm_bind(bo, new_reg, &new_tile);
997 if (ret)
998 goto out_ntfy;
999 }
1000
1001 /* Fake bo copy. */
1002 if (old_reg->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
1003 ttm_bo_move_null(bo, new_reg);
1004 goto out;
1005 }
1006
1007 if (old_reg->mem_type == TTM_PL_SYSTEM &&
1008 new_reg->mem_type == TTM_PL_TT) {
1009 ttm_bo_move_null(bo, new_reg);
1010 goto out;
1011 }
1012
1013 if (old_reg->mem_type == TTM_PL_TT &&
1014 new_reg->mem_type == TTM_PL_SYSTEM) {
1015 nouveau_ttm_tt_unbind(bo->bdev, bo->ttm);
1016 ttm_resource_free(bo, &bo->resource);
1017 ttm_bo_assign_mem(bo, new_reg);
1018 goto out;
1019 }
1020
1021 /* Hardware assisted copy. */
1022 if (drm->ttm.move) {
1023 if ((old_reg->mem_type == TTM_PL_SYSTEM &&
1024 new_reg->mem_type == TTM_PL_VRAM) ||
1025 (old_reg->mem_type == TTM_PL_VRAM &&
1026 new_reg->mem_type == TTM_PL_SYSTEM)) {
1027 hop->fpfn = 0;
1028 hop->lpfn = 0;
1029 hop->mem_type = TTM_PL_TT;
1030 hop->flags = 0;
1031 return -EMULTIHOP;
1032 }
1033 ret = nouveau_bo_move_m2mf(bo, evict, ctx,
1034 new_reg);
1035 } else
1036 ret = -ENODEV;
1037
1038 if (ret) {
1039 /* Fallback to software copy. */
1040 ret = ttm_bo_move_memcpy(bo, ctx, new_reg);
1041 }
1042
1043out:
1044 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA) {
1045 if (ret)
1046 nouveau_bo_vm_cleanup(bo, NULL, &new_tile);
1047 else
1048 nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
1049 }
1050out_ntfy:
1051 if (ret) {
1052 nouveau_bo_move_ntfy(bo, bo->resource);
1053 }
1054 return ret;
1055}
1056
1057static void
1058nouveau_ttm_io_mem_free_locked(struct nouveau_drm *drm,
1059 struct ttm_resource *reg)
1060{
1061 struct nouveau_mem *mem = nouveau_mem(reg);
1062
1063 if (drm->client.mem->oclass >= NVIF_CLASS_MEM_NV50) {
1064 switch (reg->mem_type) {
1065 case TTM_PL_TT:
1066 if (mem->kind)
1067 nvif_object_unmap_handle(&mem->mem.object);
1068 break;
1069 case TTM_PL_VRAM:
1070 nvif_object_unmap_handle(&mem->mem.object);
1071 break;
1072 default:
1073 break;
1074 }
1075 }
1076}
1077
1078static int
1079nouveau_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *reg)
1080{
1081 struct nouveau_drm *drm = nouveau_bdev(bdev);
1082 struct nvkm_device *device = nvxx_device(&drm->client.device);
1083 struct nouveau_mem *mem = nouveau_mem(reg);
1084 struct nvif_mmu *mmu = &drm->client.mmu;
1085 int ret;
1086
1087 mutex_lock(&drm->ttm.io_reserve_mutex);
1088retry:
1089 switch (reg->mem_type) {
1090 case TTM_PL_SYSTEM:
1091 /* System memory */
1092 ret = 0;
1093 goto out;
1094 case TTM_PL_TT:
1095#if IS_ENABLED(CONFIG_AGP)
1096 if (drm->agp.bridge) {
1097 reg->bus.offset = (reg->start << PAGE_SHIFT) +
1098 drm->agp.base;
1099 reg->bus.is_iomem = !drm->agp.cma;
1100 reg->bus.caching = ttm_write_combined;
1101 }
1102#endif
1103 if (drm->client.mem->oclass < NVIF_CLASS_MEM_NV50 ||
1104 !mem->kind) {
1105 /* untiled */
1106 ret = 0;
1107 break;
1108 }
1109 fallthrough; /* tiled memory */
1110 case TTM_PL_VRAM:
1111 reg->bus.offset = (reg->start << PAGE_SHIFT) +
1112 device->func->resource_addr(device, 1);
1113 reg->bus.is_iomem = true;
1114
1115 /* Some BARs do not support being ioremapped WC */
1116 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA &&
1117 mmu->type[drm->ttm.type_vram].type & NVIF_MEM_UNCACHED)
1118 reg->bus.caching = ttm_uncached;
1119 else
1120 reg->bus.caching = ttm_write_combined;
1121
1122 if (drm->client.mem->oclass >= NVIF_CLASS_MEM_NV50) {
1123 union {
1124 struct nv50_mem_map_v0 nv50;
1125 struct gf100_mem_map_v0 gf100;
1126 } args;
1127 u64 handle, length;
1128 u32 argc = 0;
1129
1130 switch (mem->mem.object.oclass) {
1131 case NVIF_CLASS_MEM_NV50:
1132 args.nv50.version = 0;
1133 args.nv50.ro = 0;
1134 args.nv50.kind = mem->kind;
1135 args.nv50.comp = mem->comp;
1136 argc = sizeof(args.nv50);
1137 break;
1138 case NVIF_CLASS_MEM_GF100:
1139 args.gf100.version = 0;
1140 args.gf100.ro = 0;
1141 args.gf100.kind = mem->kind;
1142 argc = sizeof(args.gf100);
1143 break;
1144 default:
1145 WARN_ON(1);
1146 break;
1147 }
1148
1149 ret = nvif_object_map_handle(&mem->mem.object,
1150 &args, argc,
1151 &handle, &length);
1152 if (ret != 1) {
1153 if (WARN_ON(ret == 0))
1154 ret = -EINVAL;
1155 goto out;
1156 }
1157
1158 reg->bus.offset = handle;
1159 }
1160 ret = 0;
1161 break;
1162 default:
1163 ret = -EINVAL;
1164 }
1165
1166out:
1167 if (ret == -ENOSPC) {
1168 struct nouveau_bo *nvbo;
1169
1170 nvbo = list_first_entry_or_null(&drm->ttm.io_reserve_lru,
1171 typeof(*nvbo),
1172 io_reserve_lru);
1173 if (nvbo) {
1174 list_del_init(&nvbo->io_reserve_lru);
1175 drm_vma_node_unmap(&nvbo->bo.base.vma_node,
1176 bdev->dev_mapping);
1177 nouveau_ttm_io_mem_free_locked(drm, nvbo->bo.resource);
1178 goto retry;
1179 }
1180
1181 }
1182 mutex_unlock(&drm->ttm.io_reserve_mutex);
1183 return ret;
1184}
1185
1186static void
1187nouveau_ttm_io_mem_free(struct ttm_device *bdev, struct ttm_resource *reg)
1188{
1189 struct nouveau_drm *drm = nouveau_bdev(bdev);
1190
1191 mutex_lock(&drm->ttm.io_reserve_mutex);
1192 nouveau_ttm_io_mem_free_locked(drm, reg);
1193 mutex_unlock(&drm->ttm.io_reserve_mutex);
1194}
1195
1196vm_fault_t nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
1197{
1198 struct nouveau_drm *drm = nouveau_bdev(bo->bdev);
1199 struct nouveau_bo *nvbo = nouveau_bo(bo);
1200 struct nvkm_device *device = nvxx_device(&drm->client.device);
1201 u32 mappable = device->func->resource_size(device, 1) >> PAGE_SHIFT;
1202 int i, ret;
1203
1204 /* as long as the bo isn't in vram, and isn't tiled, we've got
1205 * nothing to do here.
1206 */
1207 if (bo->resource->mem_type != TTM_PL_VRAM) {
1208 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_TESLA ||
1209 !nvbo->kind)
1210 return 0;
1211
1212 if (bo->resource->mem_type != TTM_PL_SYSTEM)
1213 return 0;
1214
1215 nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_GART, 0);
1216
1217 } else {
1218 /* make sure bo is in mappable vram */
1219 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA ||
1220 bo->resource->start + bo->resource->num_pages < mappable)
1221 return 0;
1222
1223 for (i = 0; i < nvbo->placement.num_placement; ++i) {
1224 nvbo->placements[i].fpfn = 0;
1225 nvbo->placements[i].lpfn = mappable;
1226 }
1227
1228 for (i = 0; i < nvbo->placement.num_busy_placement; ++i) {
1229 nvbo->busy_placements[i].fpfn = 0;
1230 nvbo->busy_placements[i].lpfn = mappable;
1231 }
1232
1233 nouveau_bo_placement_set(nvbo, NOUVEAU_GEM_DOMAIN_VRAM, 0);
1234 }
1235
1236 ret = nouveau_bo_validate(nvbo, false, false);
1237 if (unlikely(ret == -EBUSY || ret == -ERESTARTSYS))
1238 return VM_FAULT_NOPAGE;
1239 else if (unlikely(ret))
1240 return VM_FAULT_SIGBUS;
1241
1242 ttm_bo_move_to_lru_tail_unlocked(bo);
1243 return 0;
1244}
1245
1246static int
1247nouveau_ttm_tt_populate(struct ttm_device *bdev,
1248 struct ttm_tt *ttm, struct ttm_operation_ctx *ctx)
1249{
1250 struct ttm_tt *ttm_dma = (void *)ttm;
1251 struct nouveau_drm *drm;
1252 struct device *dev;
1253 bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
1254
1255 if (ttm_tt_is_populated(ttm))
1256 return 0;
1257
1258 if (slave && ttm->sg) {
1259 drm_prime_sg_to_dma_addr_array(ttm->sg, ttm_dma->dma_address,
1260 ttm->num_pages);
1261 return 0;
1262 }
1263
1264 drm = nouveau_bdev(bdev);
1265 dev = drm->dev->dev;
1266
1267 return ttm_pool_alloc(&drm->ttm.bdev.pool, ttm, ctx);
1268}
1269
1270static void
1271nouveau_ttm_tt_unpopulate(struct ttm_device *bdev,
1272 struct ttm_tt *ttm)
1273{
1274 struct nouveau_drm *drm;
1275 struct device *dev;
1276 bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG);
1277
1278 if (slave)
1279 return;
1280
1281 drm = nouveau_bdev(bdev);
1282 dev = drm->dev->dev;
1283
1284 return ttm_pool_free(&drm->ttm.bdev.pool, ttm);
1285}
1286
1287static void
1288nouveau_ttm_tt_destroy(struct ttm_device *bdev,
1289 struct ttm_tt *ttm)
1290{
1291#if IS_ENABLED(CONFIG_AGP)
1292 struct nouveau_drm *drm = nouveau_bdev(bdev);
1293 if (drm->agp.bridge) {
1294 ttm_agp_unbind(ttm);
1295 ttm_tt_destroy_common(bdev, ttm);
1296 ttm_agp_destroy(ttm);
1297 return;
1298 }
1299#endif
1300 nouveau_sgdma_destroy(bdev, ttm);
1301}
1302
1303void
1304nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence, bool exclusive)
1305{
1306 struct dma_resv *resv = nvbo->bo.base.resv;
1307
1308 if (exclusive)
1309 dma_resv_add_excl_fence(resv, &fence->base);
1310 else if (fence)
1311 dma_resv_add_shared_fence(resv, &fence->base);
1312}
1313
1314static void
1315nouveau_bo_delete_mem_notify(struct ttm_buffer_object *bo)
1316{
1317 nouveau_bo_move_ntfy(bo, NULL);
1318}
1319
1320struct ttm_device_funcs nouveau_bo_driver = {
1321 .ttm_tt_create = &nouveau_ttm_tt_create,
1322 .ttm_tt_populate = &nouveau_ttm_tt_populate,
1323 .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate,
1324 .ttm_tt_destroy = &nouveau_ttm_tt_destroy,
1325 .eviction_valuable = ttm_bo_eviction_valuable,
1326 .evict_flags = nouveau_bo_evict_flags,
1327 .delete_mem_notify = nouveau_bo_delete_mem_notify,
1328 .move = nouveau_bo_move,
1329 .io_mem_reserve = &nouveau_ttm_io_mem_reserve,
1330 .io_mem_free = &nouveau_ttm_io_mem_free,
1331};