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 "drmP.h"
31 #include "ttm/ttm_page_alloc.h"
32
33 #include "nouveau_drm.h"
34 #include "nouveau_drv.h"
35 #include "nouveau_dma.h"
36 #include "nouveau_mm.h"
37 #include "nouveau_vm.h"
38
39 #include <linux/log2.h>
40 #include <linux/slab.h>
41
42 static void
nouveau_bo_del_ttm(struct ttm_buffer_object * bo)43 nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
44 {
45 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
46 struct drm_device *dev = dev_priv->dev;
47 struct nouveau_bo *nvbo = nouveau_bo(bo);
48
49 if (unlikely(nvbo->gem))
50 DRM_ERROR("bo %p still attached to GEM object\n", bo);
51
52 nv10_mem_put_tile_region(dev, nvbo->tile, NULL);
53 kfree(nvbo);
54 }
55
56 static void
nouveau_bo_fixup_align(struct nouveau_bo * nvbo,u32 flags,int * align,int * size)57 nouveau_bo_fixup_align(struct nouveau_bo *nvbo, u32 flags,
58 int *align, int *size)
59 {
60 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
61
62 if (dev_priv->card_type < NV_50) {
63 if (nvbo->tile_mode) {
64 if (dev_priv->chipset >= 0x40) {
65 *align = 65536;
66 *size = roundup(*size, 64 * nvbo->tile_mode);
67
68 } else if (dev_priv->chipset >= 0x30) {
69 *align = 32768;
70 *size = roundup(*size, 64 * nvbo->tile_mode);
71
72 } else if (dev_priv->chipset >= 0x20) {
73 *align = 16384;
74 *size = roundup(*size, 64 * nvbo->tile_mode);
75
76 } else if (dev_priv->chipset >= 0x10) {
77 *align = 16384;
78 *size = roundup(*size, 32 * nvbo->tile_mode);
79 }
80 }
81 } else {
82 *size = roundup(*size, (1 << nvbo->page_shift));
83 *align = max((1 << nvbo->page_shift), *align);
84 }
85
86 *size = roundup(*size, PAGE_SIZE);
87 }
88
89 int
nouveau_bo_new(struct drm_device * dev,int size,int align,uint32_t flags,uint32_t tile_mode,uint32_t tile_flags,struct nouveau_bo ** pnvbo)90 nouveau_bo_new(struct drm_device *dev, int size, int align,
91 uint32_t flags, uint32_t tile_mode, uint32_t tile_flags,
92 struct nouveau_bo **pnvbo)
93 {
94 struct drm_nouveau_private *dev_priv = dev->dev_private;
95 struct nouveau_bo *nvbo;
96 size_t acc_size;
97 int ret;
98
99 nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
100 if (!nvbo)
101 return -ENOMEM;
102 INIT_LIST_HEAD(&nvbo->head);
103 INIT_LIST_HEAD(&nvbo->entry);
104 INIT_LIST_HEAD(&nvbo->vma_list);
105 nvbo->tile_mode = tile_mode;
106 nvbo->tile_flags = tile_flags;
107 nvbo->bo.bdev = &dev_priv->ttm.bdev;
108
109 nvbo->page_shift = 12;
110 if (dev_priv->bar1_vm) {
111 if (!(flags & TTM_PL_FLAG_TT) && size > 256 * 1024)
112 nvbo->page_shift = dev_priv->bar1_vm->lpg_shift;
113 }
114
115 nouveau_bo_fixup_align(nvbo, flags, &align, &size);
116 nvbo->bo.mem.num_pages = size >> PAGE_SHIFT;
117 nouveau_bo_placement_set(nvbo, flags, 0);
118
119 acc_size = ttm_bo_dma_acc_size(&dev_priv->ttm.bdev, size,
120 sizeof(struct nouveau_bo));
121
122 ret = ttm_bo_init(&dev_priv->ttm.bdev, &nvbo->bo, size,
123 ttm_bo_type_device, &nvbo->placement,
124 align >> PAGE_SHIFT, 0, false, NULL, acc_size,
125 nouveau_bo_del_ttm);
126 if (ret) {
127 /* ttm will call nouveau_bo_del_ttm if it fails.. */
128 return ret;
129 }
130
131 *pnvbo = nvbo;
132 return 0;
133 }
134
135 static void
set_placement_list(uint32_t * pl,unsigned * n,uint32_t type,uint32_t flags)136 set_placement_list(uint32_t *pl, unsigned *n, uint32_t type, uint32_t flags)
137 {
138 *n = 0;
139
140 if (type & TTM_PL_FLAG_VRAM)
141 pl[(*n)++] = TTM_PL_FLAG_VRAM | flags;
142 if (type & TTM_PL_FLAG_TT)
143 pl[(*n)++] = TTM_PL_FLAG_TT | flags;
144 if (type & TTM_PL_FLAG_SYSTEM)
145 pl[(*n)++] = TTM_PL_FLAG_SYSTEM | flags;
146 }
147
148 static void
set_placement_range(struct nouveau_bo * nvbo,uint32_t type)149 set_placement_range(struct nouveau_bo *nvbo, uint32_t type)
150 {
151 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
152 int vram_pages = dev_priv->vram_size >> PAGE_SHIFT;
153
154 if (dev_priv->card_type == NV_10 &&
155 nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM) &&
156 nvbo->bo.mem.num_pages < vram_pages / 4) {
157 /*
158 * Make sure that the color and depth buffers are handled
159 * by independent memory controller units. Up to a 9x
160 * speed up when alpha-blending and depth-test are enabled
161 * at the same time.
162 */
163 if (nvbo->tile_flags & NOUVEAU_GEM_TILE_ZETA) {
164 nvbo->placement.fpfn = vram_pages / 2;
165 nvbo->placement.lpfn = ~0;
166 } else {
167 nvbo->placement.fpfn = 0;
168 nvbo->placement.lpfn = vram_pages / 2;
169 }
170 }
171 }
172
173 void
nouveau_bo_placement_set(struct nouveau_bo * nvbo,uint32_t type,uint32_t busy)174 nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t type, uint32_t busy)
175 {
176 struct ttm_placement *pl = &nvbo->placement;
177 uint32_t flags = TTM_PL_MASK_CACHING |
178 (nvbo->pin_refcnt ? TTM_PL_FLAG_NO_EVICT : 0);
179
180 pl->placement = nvbo->placements;
181 set_placement_list(nvbo->placements, &pl->num_placement,
182 type, flags);
183
184 pl->busy_placement = nvbo->busy_placements;
185 set_placement_list(nvbo->busy_placements, &pl->num_busy_placement,
186 type | busy, flags);
187
188 set_placement_range(nvbo, type);
189 }
190
191 int
nouveau_bo_pin(struct nouveau_bo * nvbo,uint32_t memtype)192 nouveau_bo_pin(struct nouveau_bo *nvbo, uint32_t memtype)
193 {
194 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
195 struct ttm_buffer_object *bo = &nvbo->bo;
196 int ret;
197
198 if (nvbo->pin_refcnt && !(memtype & (1 << bo->mem.mem_type))) {
199 NV_ERROR(nouveau_bdev(bo->bdev)->dev,
200 "bo %p pinned elsewhere: 0x%08x vs 0x%08x\n", bo,
201 1 << bo->mem.mem_type, memtype);
202 return -EINVAL;
203 }
204
205 if (nvbo->pin_refcnt++)
206 return 0;
207
208 ret = ttm_bo_reserve(bo, false, false, false, 0);
209 if (ret)
210 goto out;
211
212 nouveau_bo_placement_set(nvbo, memtype, 0);
213
214 ret = nouveau_bo_validate(nvbo, false, false, false);
215 if (ret == 0) {
216 switch (bo->mem.mem_type) {
217 case TTM_PL_VRAM:
218 dev_priv->fb_aper_free -= bo->mem.size;
219 break;
220 case TTM_PL_TT:
221 dev_priv->gart_info.aper_free -= bo->mem.size;
222 break;
223 default:
224 break;
225 }
226 }
227 ttm_bo_unreserve(bo);
228 out:
229 if (unlikely(ret))
230 nvbo->pin_refcnt--;
231 return ret;
232 }
233
234 int
nouveau_bo_unpin(struct nouveau_bo * nvbo)235 nouveau_bo_unpin(struct nouveau_bo *nvbo)
236 {
237 struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
238 struct ttm_buffer_object *bo = &nvbo->bo;
239 int ret;
240
241 if (--nvbo->pin_refcnt)
242 return 0;
243
244 ret = ttm_bo_reserve(bo, false, false, false, 0);
245 if (ret)
246 return ret;
247
248 nouveau_bo_placement_set(nvbo, bo->mem.placement, 0);
249
250 ret = nouveau_bo_validate(nvbo, false, false, false);
251 if (ret == 0) {
252 switch (bo->mem.mem_type) {
253 case TTM_PL_VRAM:
254 dev_priv->fb_aper_free += bo->mem.size;
255 break;
256 case TTM_PL_TT:
257 dev_priv->gart_info.aper_free += bo->mem.size;
258 break;
259 default:
260 break;
261 }
262 }
263
264 ttm_bo_unreserve(bo);
265 return ret;
266 }
267
268 int
nouveau_bo_map(struct nouveau_bo * nvbo)269 nouveau_bo_map(struct nouveau_bo *nvbo)
270 {
271 int ret;
272
273 ret = ttm_bo_reserve(&nvbo->bo, false, false, false, 0);
274 if (ret)
275 return ret;
276
277 ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.mem.num_pages, &nvbo->kmap);
278 ttm_bo_unreserve(&nvbo->bo);
279 return ret;
280 }
281
282 void
nouveau_bo_unmap(struct nouveau_bo * nvbo)283 nouveau_bo_unmap(struct nouveau_bo *nvbo)
284 {
285 if (nvbo)
286 ttm_bo_kunmap(&nvbo->kmap);
287 }
288
289 int
nouveau_bo_validate(struct nouveau_bo * nvbo,bool interruptible,bool no_wait_reserve,bool no_wait_gpu)290 nouveau_bo_validate(struct nouveau_bo *nvbo, bool interruptible,
291 bool no_wait_reserve, bool no_wait_gpu)
292 {
293 int ret;
294
295 ret = ttm_bo_validate(&nvbo->bo, &nvbo->placement, interruptible,
296 no_wait_reserve, no_wait_gpu);
297 if (ret)
298 return ret;
299
300 return 0;
301 }
302
303 u16
nouveau_bo_rd16(struct nouveau_bo * nvbo,unsigned index)304 nouveau_bo_rd16(struct nouveau_bo *nvbo, unsigned index)
305 {
306 bool is_iomem;
307 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
308 mem = &mem[index];
309 if (is_iomem)
310 return ioread16_native((void __force __iomem *)mem);
311 else
312 return *mem;
313 }
314
315 void
nouveau_bo_wr16(struct nouveau_bo * nvbo,unsigned index,u16 val)316 nouveau_bo_wr16(struct nouveau_bo *nvbo, unsigned index, u16 val)
317 {
318 bool is_iomem;
319 u16 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
320 mem = &mem[index];
321 if (is_iomem)
322 iowrite16_native(val, (void __force __iomem *)mem);
323 else
324 *mem = val;
325 }
326
327 u32
nouveau_bo_rd32(struct nouveau_bo * nvbo,unsigned index)328 nouveau_bo_rd32(struct nouveau_bo *nvbo, unsigned index)
329 {
330 bool is_iomem;
331 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
332 mem = &mem[index];
333 if (is_iomem)
334 return ioread32_native((void __force __iomem *)mem);
335 else
336 return *mem;
337 }
338
339 void
nouveau_bo_wr32(struct nouveau_bo * nvbo,unsigned index,u32 val)340 nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
341 {
342 bool is_iomem;
343 u32 *mem = ttm_kmap_obj_virtual(&nvbo->kmap, &is_iomem);
344 mem = &mem[index];
345 if (is_iomem)
346 iowrite32_native(val, (void __force __iomem *)mem);
347 else
348 *mem = val;
349 }
350
351 static struct ttm_tt *
nouveau_ttm_tt_create(struct ttm_bo_device * bdev,unsigned long size,uint32_t page_flags,struct page * dummy_read_page)352 nouveau_ttm_tt_create(struct ttm_bo_device *bdev,
353 unsigned long size, uint32_t page_flags,
354 struct page *dummy_read_page)
355 {
356 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
357 struct drm_device *dev = dev_priv->dev;
358
359 switch (dev_priv->gart_info.type) {
360 #if __OS_HAS_AGP
361 case NOUVEAU_GART_AGP:
362 return ttm_agp_tt_create(bdev, dev->agp->bridge,
363 size, page_flags, dummy_read_page);
364 #endif
365 case NOUVEAU_GART_PDMA:
366 case NOUVEAU_GART_HW:
367 return nouveau_sgdma_create_ttm(bdev, size, page_flags,
368 dummy_read_page);
369 default:
370 NV_ERROR(dev, "Unknown GART type %d\n",
371 dev_priv->gart_info.type);
372 break;
373 }
374
375 return NULL;
376 }
377
378 static int
nouveau_bo_invalidate_caches(struct ttm_bo_device * bdev,uint32_t flags)379 nouveau_bo_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
380 {
381 /* We'll do this from user space. */
382 return 0;
383 }
384
385 static int
nouveau_bo_init_mem_type(struct ttm_bo_device * bdev,uint32_t type,struct ttm_mem_type_manager * man)386 nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
387 struct ttm_mem_type_manager *man)
388 {
389 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
390 struct drm_device *dev = dev_priv->dev;
391
392 switch (type) {
393 case TTM_PL_SYSTEM:
394 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
395 man->available_caching = TTM_PL_MASK_CACHING;
396 man->default_caching = TTM_PL_FLAG_CACHED;
397 break;
398 case TTM_PL_VRAM:
399 if (dev_priv->card_type >= NV_50) {
400 man->func = &nouveau_vram_manager;
401 man->io_reserve_fastpath = false;
402 man->use_io_reserve_lru = true;
403 } else {
404 man->func = &ttm_bo_manager_func;
405 }
406 man->flags = TTM_MEMTYPE_FLAG_FIXED |
407 TTM_MEMTYPE_FLAG_MAPPABLE;
408 man->available_caching = TTM_PL_FLAG_UNCACHED |
409 TTM_PL_FLAG_WC;
410 man->default_caching = TTM_PL_FLAG_WC;
411 break;
412 case TTM_PL_TT:
413 if (dev_priv->card_type >= NV_50)
414 man->func = &nouveau_gart_manager;
415 else
416 man->func = &ttm_bo_manager_func;
417 switch (dev_priv->gart_info.type) {
418 case NOUVEAU_GART_AGP:
419 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
420 man->available_caching = TTM_PL_FLAG_UNCACHED |
421 TTM_PL_FLAG_WC;
422 man->default_caching = TTM_PL_FLAG_WC;
423 break;
424 case NOUVEAU_GART_PDMA:
425 case NOUVEAU_GART_HW:
426 man->flags = TTM_MEMTYPE_FLAG_MAPPABLE |
427 TTM_MEMTYPE_FLAG_CMA;
428 man->available_caching = TTM_PL_MASK_CACHING;
429 man->default_caching = TTM_PL_FLAG_CACHED;
430 break;
431 default:
432 NV_ERROR(dev, "Unknown GART type: %d\n",
433 dev_priv->gart_info.type);
434 return -EINVAL;
435 }
436 break;
437 default:
438 NV_ERROR(dev, "Unsupported memory type %u\n", (unsigned)type);
439 return -EINVAL;
440 }
441 return 0;
442 }
443
444 static void
nouveau_bo_evict_flags(struct ttm_buffer_object * bo,struct ttm_placement * pl)445 nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
446 {
447 struct nouveau_bo *nvbo = nouveau_bo(bo);
448
449 switch (bo->mem.mem_type) {
450 case TTM_PL_VRAM:
451 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT,
452 TTM_PL_FLAG_SYSTEM);
453 break;
454 default:
455 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM, 0);
456 break;
457 }
458
459 *pl = nvbo->placement;
460 }
461
462
463 /* GPU-assisted copy using NV_MEMORY_TO_MEMORY_FORMAT, can access
464 * TTM_PL_{VRAM,TT} directly.
465 */
466
467 static int
nouveau_bo_move_accel_cleanup(struct nouveau_channel * chan,struct nouveau_bo * nvbo,bool evict,bool no_wait_reserve,bool no_wait_gpu,struct ttm_mem_reg * new_mem)468 nouveau_bo_move_accel_cleanup(struct nouveau_channel *chan,
469 struct nouveau_bo *nvbo, bool evict,
470 bool no_wait_reserve, bool no_wait_gpu,
471 struct ttm_mem_reg *new_mem)
472 {
473 struct nouveau_fence *fence = NULL;
474 int ret;
475
476 ret = nouveau_fence_new(chan, &fence, true);
477 if (ret)
478 return ret;
479
480 ret = ttm_bo_move_accel_cleanup(&nvbo->bo, fence, NULL, evict,
481 no_wait_reserve, no_wait_gpu, new_mem);
482 nouveau_fence_unref(&fence);
483 return ret;
484 }
485
486 static int
nvc0_bo_move_m2mf(struct nouveau_channel * chan,struct ttm_buffer_object * bo,struct ttm_mem_reg * old_mem,struct ttm_mem_reg * new_mem)487 nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
488 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
489 {
490 struct nouveau_mem *node = old_mem->mm_node;
491 u64 src_offset = node->vma[0].offset;
492 u64 dst_offset = node->vma[1].offset;
493 u32 page_count = new_mem->num_pages;
494 int ret;
495
496 page_count = new_mem->num_pages;
497 while (page_count) {
498 int line_count = (page_count > 2047) ? 2047 : page_count;
499
500 ret = RING_SPACE(chan, 12);
501 if (ret)
502 return ret;
503
504 BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0238, 2);
505 OUT_RING (chan, upper_32_bits(dst_offset));
506 OUT_RING (chan, lower_32_bits(dst_offset));
507 BEGIN_NVC0(chan, 2, NvSubM2MF, 0x030c, 6);
508 OUT_RING (chan, upper_32_bits(src_offset));
509 OUT_RING (chan, lower_32_bits(src_offset));
510 OUT_RING (chan, PAGE_SIZE); /* src_pitch */
511 OUT_RING (chan, PAGE_SIZE); /* dst_pitch */
512 OUT_RING (chan, PAGE_SIZE); /* line_length */
513 OUT_RING (chan, line_count);
514 BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0300, 1);
515 OUT_RING (chan, 0x00100110);
516
517 page_count -= line_count;
518 src_offset += (PAGE_SIZE * line_count);
519 dst_offset += (PAGE_SIZE * line_count);
520 }
521
522 return 0;
523 }
524
525 static int
nv50_bo_move_m2mf(struct nouveau_channel * chan,struct ttm_buffer_object * bo,struct ttm_mem_reg * old_mem,struct ttm_mem_reg * new_mem)526 nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
527 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
528 {
529 struct nouveau_mem *node = old_mem->mm_node;
530 struct nouveau_bo *nvbo = nouveau_bo(bo);
531 u64 length = (new_mem->num_pages << PAGE_SHIFT);
532 u64 src_offset = node->vma[0].offset;
533 u64 dst_offset = node->vma[1].offset;
534 int ret;
535
536 while (length) {
537 u32 amount, stride, height;
538
539 amount = min(length, (u64)(4 * 1024 * 1024));
540 stride = 16 * 4;
541 height = amount / stride;
542
543 if (new_mem->mem_type == TTM_PL_VRAM &&
544 nouveau_bo_tile_layout(nvbo)) {
545 ret = RING_SPACE(chan, 8);
546 if (ret)
547 return ret;
548
549 BEGIN_RING(chan, NvSubM2MF, 0x0200, 7);
550 OUT_RING (chan, 0);
551 OUT_RING (chan, 0);
552 OUT_RING (chan, stride);
553 OUT_RING (chan, height);
554 OUT_RING (chan, 1);
555 OUT_RING (chan, 0);
556 OUT_RING (chan, 0);
557 } else {
558 ret = RING_SPACE(chan, 2);
559 if (ret)
560 return ret;
561
562 BEGIN_RING(chan, NvSubM2MF, 0x0200, 1);
563 OUT_RING (chan, 1);
564 }
565 if (old_mem->mem_type == TTM_PL_VRAM &&
566 nouveau_bo_tile_layout(nvbo)) {
567 ret = RING_SPACE(chan, 8);
568 if (ret)
569 return ret;
570
571 BEGIN_RING(chan, NvSubM2MF, 0x021c, 7);
572 OUT_RING (chan, 0);
573 OUT_RING (chan, 0);
574 OUT_RING (chan, stride);
575 OUT_RING (chan, height);
576 OUT_RING (chan, 1);
577 OUT_RING (chan, 0);
578 OUT_RING (chan, 0);
579 } else {
580 ret = RING_SPACE(chan, 2);
581 if (ret)
582 return ret;
583
584 BEGIN_RING(chan, NvSubM2MF, 0x021c, 1);
585 OUT_RING (chan, 1);
586 }
587
588 ret = RING_SPACE(chan, 14);
589 if (ret)
590 return ret;
591
592 BEGIN_RING(chan, NvSubM2MF, 0x0238, 2);
593 OUT_RING (chan, upper_32_bits(src_offset));
594 OUT_RING (chan, upper_32_bits(dst_offset));
595 BEGIN_RING(chan, NvSubM2MF, 0x030c, 8);
596 OUT_RING (chan, lower_32_bits(src_offset));
597 OUT_RING (chan, lower_32_bits(dst_offset));
598 OUT_RING (chan, stride);
599 OUT_RING (chan, stride);
600 OUT_RING (chan, stride);
601 OUT_RING (chan, height);
602 OUT_RING (chan, 0x00000101);
603 OUT_RING (chan, 0x00000000);
604 BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
605 OUT_RING (chan, 0);
606
607 length -= amount;
608 src_offset += amount;
609 dst_offset += amount;
610 }
611
612 return 0;
613 }
614
615 static inline uint32_t
nouveau_bo_mem_ctxdma(struct ttm_buffer_object * bo,struct nouveau_channel * chan,struct ttm_mem_reg * mem)616 nouveau_bo_mem_ctxdma(struct ttm_buffer_object *bo,
617 struct nouveau_channel *chan, struct ttm_mem_reg *mem)
618 {
619 if (mem->mem_type == TTM_PL_TT)
620 return chan->gart_handle;
621 return chan->vram_handle;
622 }
623
624 static int
nv04_bo_move_m2mf(struct nouveau_channel * chan,struct ttm_buffer_object * bo,struct ttm_mem_reg * old_mem,struct ttm_mem_reg * new_mem)625 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
626 struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
627 {
628 u32 src_offset = old_mem->start << PAGE_SHIFT;
629 u32 dst_offset = new_mem->start << PAGE_SHIFT;
630 u32 page_count = new_mem->num_pages;
631 int ret;
632
633 ret = RING_SPACE(chan, 3);
634 if (ret)
635 return ret;
636
637 BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_DMA_SOURCE, 2);
638 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, old_mem));
639 OUT_RING (chan, nouveau_bo_mem_ctxdma(bo, chan, new_mem));
640
641 page_count = new_mem->num_pages;
642 while (page_count) {
643 int line_count = (page_count > 2047) ? 2047 : page_count;
644
645 ret = RING_SPACE(chan, 11);
646 if (ret)
647 return ret;
648
649 BEGIN_RING(chan, NvSubM2MF,
650 NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
651 OUT_RING (chan, src_offset);
652 OUT_RING (chan, dst_offset);
653 OUT_RING (chan, PAGE_SIZE); /* src_pitch */
654 OUT_RING (chan, PAGE_SIZE); /* dst_pitch */
655 OUT_RING (chan, PAGE_SIZE); /* line_length */
656 OUT_RING (chan, line_count);
657 OUT_RING (chan, 0x00000101);
658 OUT_RING (chan, 0x00000000);
659 BEGIN_RING(chan, NvSubM2MF, NV_MEMORY_TO_MEMORY_FORMAT_NOP, 1);
660 OUT_RING (chan, 0);
661
662 page_count -= line_count;
663 src_offset += (PAGE_SIZE * line_count);
664 dst_offset += (PAGE_SIZE * line_count);
665 }
666
667 return 0;
668 }
669
670 static int
nouveau_vma_getmap(struct nouveau_channel * chan,struct nouveau_bo * nvbo,struct ttm_mem_reg * mem,struct nouveau_vma * vma)671 nouveau_vma_getmap(struct nouveau_channel *chan, struct nouveau_bo *nvbo,
672 struct ttm_mem_reg *mem, struct nouveau_vma *vma)
673 {
674 struct nouveau_mem *node = mem->mm_node;
675 int ret;
676
677 ret = nouveau_vm_get(chan->vm, mem->num_pages << PAGE_SHIFT,
678 node->page_shift, NV_MEM_ACCESS_RO, vma);
679 if (ret)
680 return ret;
681
682 if (mem->mem_type == TTM_PL_VRAM)
683 nouveau_vm_map(vma, node);
684 else
685 nouveau_vm_map_sg(vma, 0, mem->num_pages << PAGE_SHIFT, node);
686
687 return 0;
688 }
689
690 static int
nouveau_bo_move_m2mf(struct ttm_buffer_object * bo,int evict,bool intr,bool no_wait_reserve,bool no_wait_gpu,struct ttm_mem_reg * new_mem)691 nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
692 bool no_wait_reserve, bool no_wait_gpu,
693 struct ttm_mem_reg *new_mem)
694 {
695 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
696 struct nouveau_channel *chan = chan = dev_priv->channel;
697 struct nouveau_bo *nvbo = nouveau_bo(bo);
698 struct ttm_mem_reg *old_mem = &bo->mem;
699 int ret;
700
701 mutex_lock_nested(&chan->mutex, NOUVEAU_KCHANNEL_MUTEX);
702
703 /* create temporary vmas for the transfer and attach them to the
704 * old nouveau_mem node, these will get cleaned up after ttm has
705 * destroyed the ttm_mem_reg
706 */
707 if (dev_priv->card_type >= NV_50) {
708 struct nouveau_mem *node = old_mem->mm_node;
709
710 ret = nouveau_vma_getmap(chan, nvbo, old_mem, &node->vma[0]);
711 if (ret)
712 goto out;
713
714 ret = nouveau_vma_getmap(chan, nvbo, new_mem, &node->vma[1]);
715 if (ret)
716 goto out;
717 }
718
719 if (dev_priv->card_type < NV_50)
720 ret = nv04_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
721 else
722 if (dev_priv->card_type < NV_C0)
723 ret = nv50_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
724 else
725 ret = nvc0_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
726 if (ret == 0) {
727 ret = nouveau_bo_move_accel_cleanup(chan, nvbo, evict,
728 no_wait_reserve,
729 no_wait_gpu, new_mem);
730 }
731
732 out:
733 mutex_unlock(&chan->mutex);
734 return ret;
735 }
736
737 static int
nouveau_bo_move_flipd(struct ttm_buffer_object * bo,bool evict,bool intr,bool no_wait_reserve,bool no_wait_gpu,struct ttm_mem_reg * new_mem)738 nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
739 bool no_wait_reserve, bool no_wait_gpu,
740 struct ttm_mem_reg *new_mem)
741 {
742 u32 placement_memtype = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
743 struct ttm_placement placement;
744 struct ttm_mem_reg tmp_mem;
745 int ret;
746
747 placement.fpfn = placement.lpfn = 0;
748 placement.num_placement = placement.num_busy_placement = 1;
749 placement.placement = placement.busy_placement = &placement_memtype;
750
751 tmp_mem = *new_mem;
752 tmp_mem.mm_node = NULL;
753 ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_reserve, no_wait_gpu);
754 if (ret)
755 return ret;
756
757 ret = ttm_tt_bind(bo->ttm, &tmp_mem);
758 if (ret)
759 goto out;
760
761 ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_reserve, no_wait_gpu, &tmp_mem);
762 if (ret)
763 goto out;
764
765 ret = ttm_bo_move_ttm(bo, true, no_wait_reserve, no_wait_gpu, new_mem);
766 out:
767 ttm_bo_mem_put(bo, &tmp_mem);
768 return ret;
769 }
770
771 static int
nouveau_bo_move_flips(struct ttm_buffer_object * bo,bool evict,bool intr,bool no_wait_reserve,bool no_wait_gpu,struct ttm_mem_reg * new_mem)772 nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
773 bool no_wait_reserve, bool no_wait_gpu,
774 struct ttm_mem_reg *new_mem)
775 {
776 u32 placement_memtype = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
777 struct ttm_placement placement;
778 struct ttm_mem_reg tmp_mem;
779 int ret;
780
781 placement.fpfn = placement.lpfn = 0;
782 placement.num_placement = placement.num_busy_placement = 1;
783 placement.placement = placement.busy_placement = &placement_memtype;
784
785 tmp_mem = *new_mem;
786 tmp_mem.mm_node = NULL;
787 ret = ttm_bo_mem_space(bo, &placement, &tmp_mem, intr, no_wait_reserve, no_wait_gpu);
788 if (ret)
789 return ret;
790
791 ret = ttm_bo_move_ttm(bo, true, no_wait_reserve, no_wait_gpu, &tmp_mem);
792 if (ret)
793 goto out;
794
795 ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait_reserve, no_wait_gpu, new_mem);
796 if (ret)
797 goto out;
798
799 out:
800 ttm_bo_mem_put(bo, &tmp_mem);
801 return ret;
802 }
803
804 static void
nouveau_bo_move_ntfy(struct ttm_buffer_object * bo,struct ttm_mem_reg * new_mem)805 nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem)
806 {
807 struct nouveau_bo *nvbo = nouveau_bo(bo);
808 struct nouveau_vma *vma;
809
810 /* ttm can now (stupidly) pass the driver bos it didn't create... */
811 if (bo->destroy != nouveau_bo_del_ttm)
812 return;
813
814 list_for_each_entry(vma, &nvbo->vma_list, head) {
815 if (new_mem && new_mem->mem_type == TTM_PL_VRAM) {
816 nouveau_vm_map(vma, new_mem->mm_node);
817 } else
818 if (new_mem && new_mem->mem_type == TTM_PL_TT &&
819 nvbo->page_shift == vma->vm->spg_shift) {
820 nouveau_vm_map_sg(vma, 0, new_mem->
821 num_pages << PAGE_SHIFT,
822 new_mem->mm_node);
823 } else {
824 nouveau_vm_unmap(vma);
825 }
826 }
827 }
828
829 static int
nouveau_bo_vm_bind(struct ttm_buffer_object * bo,struct ttm_mem_reg * new_mem,struct nouveau_tile_reg ** new_tile)830 nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem,
831 struct nouveau_tile_reg **new_tile)
832 {
833 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
834 struct drm_device *dev = dev_priv->dev;
835 struct nouveau_bo *nvbo = nouveau_bo(bo);
836 u64 offset = new_mem->start << PAGE_SHIFT;
837
838 *new_tile = NULL;
839 if (new_mem->mem_type != TTM_PL_VRAM)
840 return 0;
841
842 if (dev_priv->card_type >= NV_10) {
843 *new_tile = nv10_mem_set_tiling(dev, offset, new_mem->size,
844 nvbo->tile_mode,
845 nvbo->tile_flags);
846 }
847
848 return 0;
849 }
850
851 static void
nouveau_bo_vm_cleanup(struct ttm_buffer_object * bo,struct nouveau_tile_reg * new_tile,struct nouveau_tile_reg ** old_tile)852 nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo,
853 struct nouveau_tile_reg *new_tile,
854 struct nouveau_tile_reg **old_tile)
855 {
856 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
857 struct drm_device *dev = dev_priv->dev;
858
859 nv10_mem_put_tile_region(dev, *old_tile, bo->sync_obj);
860 *old_tile = new_tile;
861 }
862
863 static int
nouveau_bo_move(struct ttm_buffer_object * bo,bool evict,bool intr,bool no_wait_reserve,bool no_wait_gpu,struct ttm_mem_reg * new_mem)864 nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
865 bool no_wait_reserve, bool no_wait_gpu,
866 struct ttm_mem_reg *new_mem)
867 {
868 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
869 struct nouveau_bo *nvbo = nouveau_bo(bo);
870 struct ttm_mem_reg *old_mem = &bo->mem;
871 struct nouveau_tile_reg *new_tile = NULL;
872 int ret = 0;
873
874 if (dev_priv->card_type < NV_50) {
875 ret = nouveau_bo_vm_bind(bo, new_mem, &new_tile);
876 if (ret)
877 return ret;
878 }
879
880 /* Fake bo copy. */
881 if (old_mem->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
882 BUG_ON(bo->mem.mm_node != NULL);
883 bo->mem = *new_mem;
884 new_mem->mm_node = NULL;
885 goto out;
886 }
887
888 /* Software copy if the card isn't up and running yet. */
889 if (!dev_priv->channel) {
890 ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
891 goto out;
892 }
893
894 /* Hardware assisted copy. */
895 if (new_mem->mem_type == TTM_PL_SYSTEM)
896 ret = nouveau_bo_move_flipd(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
897 else if (old_mem->mem_type == TTM_PL_SYSTEM)
898 ret = nouveau_bo_move_flips(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
899 else
900 ret = nouveau_bo_move_m2mf(bo, evict, intr, no_wait_reserve, no_wait_gpu, new_mem);
901
902 if (!ret)
903 goto out;
904
905 /* Fallback to software copy. */
906 ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
907
908 out:
909 if (dev_priv->card_type < NV_50) {
910 if (ret)
911 nouveau_bo_vm_cleanup(bo, NULL, &new_tile);
912 else
913 nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
914 }
915
916 return ret;
917 }
918
919 static int
nouveau_bo_verify_access(struct ttm_buffer_object * bo,struct file * filp)920 nouveau_bo_verify_access(struct ttm_buffer_object *bo, struct file *filp)
921 {
922 return 0;
923 }
924
925 static int
nouveau_ttm_io_mem_reserve(struct ttm_bo_device * bdev,struct ttm_mem_reg * mem)926 nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
927 {
928 struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
929 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
930 struct drm_device *dev = dev_priv->dev;
931 int ret;
932
933 mem->bus.addr = NULL;
934 mem->bus.offset = 0;
935 mem->bus.size = mem->num_pages << PAGE_SHIFT;
936 mem->bus.base = 0;
937 mem->bus.is_iomem = false;
938 if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
939 return -EINVAL;
940 switch (mem->mem_type) {
941 case TTM_PL_SYSTEM:
942 /* System memory */
943 return 0;
944 case TTM_PL_TT:
945 #if __OS_HAS_AGP
946 if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
947 mem->bus.offset = mem->start << PAGE_SHIFT;
948 mem->bus.base = dev_priv->gart_info.aper_base;
949 mem->bus.is_iomem = true;
950 }
951 #endif
952 break;
953 case TTM_PL_VRAM:
954 {
955 struct nouveau_mem *node = mem->mm_node;
956 u8 page_shift;
957
958 if (!dev_priv->bar1_vm) {
959 mem->bus.offset = mem->start << PAGE_SHIFT;
960 mem->bus.base = pci_resource_start(dev->pdev, 1);
961 mem->bus.is_iomem = true;
962 break;
963 }
964
965 if (dev_priv->card_type >= NV_C0)
966 page_shift = node->page_shift;
967 else
968 page_shift = 12;
969
970 ret = nouveau_vm_get(dev_priv->bar1_vm, mem->bus.size,
971 page_shift, NV_MEM_ACCESS_RW,
972 &node->bar_vma);
973 if (ret)
974 return ret;
975
976 nouveau_vm_map(&node->bar_vma, node);
977 if (ret) {
978 nouveau_vm_put(&node->bar_vma);
979 return ret;
980 }
981
982 mem->bus.offset = node->bar_vma.offset;
983 if (dev_priv->card_type == NV_50) /*XXX*/
984 mem->bus.offset -= 0x0020000000ULL;
985 mem->bus.base = pci_resource_start(dev->pdev, 1);
986 mem->bus.is_iomem = true;
987 }
988 break;
989 default:
990 return -EINVAL;
991 }
992 return 0;
993 }
994
995 static void
nouveau_ttm_io_mem_free(struct ttm_bo_device * bdev,struct ttm_mem_reg * mem)996 nouveau_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
997 {
998 struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
999 struct nouveau_mem *node = mem->mm_node;
1000
1001 if (!dev_priv->bar1_vm || mem->mem_type != TTM_PL_VRAM)
1002 return;
1003
1004 if (!node->bar_vma.node)
1005 return;
1006
1007 nouveau_vm_unmap(&node->bar_vma);
1008 nouveau_vm_put(&node->bar_vma);
1009 }
1010
1011 static int
nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object * bo)1012 nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
1013 {
1014 struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
1015 struct nouveau_bo *nvbo = nouveau_bo(bo);
1016
1017 /* as long as the bo isn't in vram, and isn't tiled, we've got
1018 * nothing to do here.
1019 */
1020 if (bo->mem.mem_type != TTM_PL_VRAM) {
1021 if (dev_priv->card_type < NV_50 ||
1022 !nouveau_bo_tile_layout(nvbo))
1023 return 0;
1024 }
1025
1026 /* make sure bo is in mappable vram */
1027 if (bo->mem.start + bo->mem.num_pages < dev_priv->fb_mappable_pages)
1028 return 0;
1029
1030
1031 nvbo->placement.fpfn = 0;
1032 nvbo->placement.lpfn = dev_priv->fb_mappable_pages;
1033 nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_VRAM, 0);
1034 return nouveau_bo_validate(nvbo, false, true, false);
1035 }
1036
1037 void
nouveau_bo_fence(struct nouveau_bo * nvbo,struct nouveau_fence * fence)1038 nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence)
1039 {
1040 struct nouveau_fence *old_fence;
1041
1042 if (likely(fence))
1043 nouveau_fence_ref(fence);
1044
1045 spin_lock(&nvbo->bo.bdev->fence_lock);
1046 old_fence = nvbo->bo.sync_obj;
1047 nvbo->bo.sync_obj = fence;
1048 spin_unlock(&nvbo->bo.bdev->fence_lock);
1049
1050 nouveau_fence_unref(&old_fence);
1051 }
1052
1053 static int
nouveau_ttm_tt_populate(struct ttm_tt * ttm)1054 nouveau_ttm_tt_populate(struct ttm_tt *ttm)
1055 {
1056 struct ttm_dma_tt *ttm_dma = (void *)ttm;
1057 struct drm_nouveau_private *dev_priv;
1058 struct drm_device *dev;
1059 unsigned i;
1060 int r;
1061
1062 if (ttm->state != tt_unpopulated)
1063 return 0;
1064
1065 dev_priv = nouveau_bdev(ttm->bdev);
1066 dev = dev_priv->dev;
1067
1068 #if __OS_HAS_AGP
1069 if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
1070 return ttm_agp_tt_populate(ttm);
1071 }
1072 #endif
1073
1074 #ifdef CONFIG_SWIOTLB
1075 if (swiotlb_nr_tbl()) {
1076 return ttm_dma_populate((void *)ttm, dev->dev);
1077 }
1078 #endif
1079
1080 r = ttm_pool_populate(ttm);
1081 if (r) {
1082 return r;
1083 }
1084
1085 for (i = 0; i < ttm->num_pages; i++) {
1086 ttm_dma->dma_address[i] = pci_map_page(dev->pdev, ttm->pages[i],
1087 0, PAGE_SIZE,
1088 PCI_DMA_BIDIRECTIONAL);
1089 if (pci_dma_mapping_error(dev->pdev, ttm_dma->dma_address[i])) {
1090 while (--i) {
1091 pci_unmap_page(dev->pdev, ttm_dma->dma_address[i],
1092 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
1093 ttm_dma->dma_address[i] = 0;
1094 }
1095 ttm_pool_unpopulate(ttm);
1096 return -EFAULT;
1097 }
1098 }
1099 return 0;
1100 }
1101
1102 static void
nouveau_ttm_tt_unpopulate(struct ttm_tt * ttm)1103 nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
1104 {
1105 struct ttm_dma_tt *ttm_dma = (void *)ttm;
1106 struct drm_nouveau_private *dev_priv;
1107 struct drm_device *dev;
1108 unsigned i;
1109
1110 dev_priv = nouveau_bdev(ttm->bdev);
1111 dev = dev_priv->dev;
1112
1113 #if __OS_HAS_AGP
1114 if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
1115 ttm_agp_tt_unpopulate(ttm);
1116 return;
1117 }
1118 #endif
1119
1120 #ifdef CONFIG_SWIOTLB
1121 if (swiotlb_nr_tbl()) {
1122 ttm_dma_unpopulate((void *)ttm, dev->dev);
1123 return;
1124 }
1125 #endif
1126
1127 for (i = 0; i < ttm->num_pages; i++) {
1128 if (ttm_dma->dma_address[i]) {
1129 pci_unmap_page(dev->pdev, ttm_dma->dma_address[i],
1130 PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
1131 }
1132 }
1133
1134 ttm_pool_unpopulate(ttm);
1135 }
1136
1137 struct ttm_bo_driver nouveau_bo_driver = {
1138 .ttm_tt_create = &nouveau_ttm_tt_create,
1139 .ttm_tt_populate = &nouveau_ttm_tt_populate,
1140 .ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate,
1141 .invalidate_caches = nouveau_bo_invalidate_caches,
1142 .init_mem_type = nouveau_bo_init_mem_type,
1143 .evict_flags = nouveau_bo_evict_flags,
1144 .move_notify = nouveau_bo_move_ntfy,
1145 .move = nouveau_bo_move,
1146 .verify_access = nouveau_bo_verify_access,
1147 .sync_obj_signaled = __nouveau_fence_signalled,
1148 .sync_obj_wait = __nouveau_fence_wait,
1149 .sync_obj_flush = __nouveau_fence_flush,
1150 .sync_obj_unref = __nouveau_fence_unref,
1151 .sync_obj_ref = __nouveau_fence_ref,
1152 .fault_reserve_notify = &nouveau_ttm_fault_reserve_notify,
1153 .io_mem_reserve = &nouveau_ttm_io_mem_reserve,
1154 .io_mem_free = &nouveau_ttm_io_mem_free,
1155 };
1156
1157 struct nouveau_vma *
nouveau_bo_vma_find(struct nouveau_bo * nvbo,struct nouveau_vm * vm)1158 nouveau_bo_vma_find(struct nouveau_bo *nvbo, struct nouveau_vm *vm)
1159 {
1160 struct nouveau_vma *vma;
1161 list_for_each_entry(vma, &nvbo->vma_list, head) {
1162 if (vma->vm == vm)
1163 return vma;
1164 }
1165
1166 return NULL;
1167 }
1168
1169 int
nouveau_bo_vma_add(struct nouveau_bo * nvbo,struct nouveau_vm * vm,struct nouveau_vma * vma)1170 nouveau_bo_vma_add(struct nouveau_bo *nvbo, struct nouveau_vm *vm,
1171 struct nouveau_vma *vma)
1172 {
1173 const u32 size = nvbo->bo.mem.num_pages << PAGE_SHIFT;
1174 struct nouveau_mem *node = nvbo->bo.mem.mm_node;
1175 int ret;
1176
1177 ret = nouveau_vm_get(vm, size, nvbo->page_shift,
1178 NV_MEM_ACCESS_RW, vma);
1179 if (ret)
1180 return ret;
1181
1182 if (nvbo->bo.mem.mem_type == TTM_PL_VRAM)
1183 nouveau_vm_map(vma, nvbo->bo.mem.mm_node);
1184 else
1185 if (nvbo->bo.mem.mem_type == TTM_PL_TT)
1186 nouveau_vm_map_sg(vma, 0, size, node);
1187
1188 list_add_tail(&vma->head, &nvbo->vma_list);
1189 vma->refcount = 1;
1190 return 0;
1191 }
1192
1193 void
nouveau_bo_vma_del(struct nouveau_bo * nvbo,struct nouveau_vma * vma)1194 nouveau_bo_vma_del(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
1195 {
1196 if (vma->node) {
1197 if (nvbo->bo.mem.mem_type != TTM_PL_SYSTEM) {
1198 spin_lock(&nvbo->bo.bdev->fence_lock);
1199 ttm_bo_wait(&nvbo->bo, false, false, false);
1200 spin_unlock(&nvbo->bo.bdev->fence_lock);
1201 nouveau_vm_unmap(vma);
1202 }
1203
1204 nouveau_vm_put(vma);
1205 list_del(&vma->head);
1206 }
1207 }
1208