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771fe6b9 JG |
1 | /* |
2 | * Copyright 2009 Jerome Glisse. | |
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 | |
7 | * "Software"), to deal in the Software without restriction, including | |
8 | * without limitation the rights to use, copy, modify, merge, publish, | |
9 | * distribute, sub license, and/or sell copies of the Software, and to | |
10 | * permit persons to whom the Software is furnished to do so, subject to | |
11 | * the following conditions: | |
12 | * | |
13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
15 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
16 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
17 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
18 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
19 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
20 | * | |
21 | * The above copyright notice and this permission notice (including the | |
22 | * next paragraph) shall be included in all copies or substantial portions | |
23 | * of the Software. | |
24 | * | |
25 | */ | |
26 | /* | |
27 | * Authors: | |
28 | * Jerome Glisse <glisse@freedesktop.org> | |
29 | * Thomas Hellstrom <thomas-at-tungstengraphics-dot-com> | |
30 | * Dave Airlie | |
31 | */ | |
32 | #include <ttm/ttm_bo_api.h> | |
33 | #include <ttm/ttm_bo_driver.h> | |
34 | #include <ttm/ttm_placement.h> | |
35 | #include <ttm/ttm_module.h> | |
36 | #include <drm/drmP.h> | |
37 | #include <drm/radeon_drm.h> | |
fa8a1238 | 38 | #include <linux/seq_file.h> |
771fe6b9 JG |
39 | #include "radeon_reg.h" |
40 | #include "radeon.h" | |
41 | ||
42 | #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT) | |
43 | ||
fa8a1238 DA |
44 | static int radeon_ttm_debugfs_init(struct radeon_device *rdev); |
45 | ||
771fe6b9 JG |
46 | static struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev) |
47 | { | |
48 | struct radeon_mman *mman; | |
49 | struct radeon_device *rdev; | |
50 | ||
51 | mman = container_of(bdev, struct radeon_mman, bdev); | |
52 | rdev = container_of(mman, struct radeon_device, mman); | |
53 | return rdev; | |
54 | } | |
55 | ||
56 | ||
57 | /* | |
58 | * Global memory. | |
59 | */ | |
60 | static int radeon_ttm_mem_global_init(struct ttm_global_reference *ref) | |
61 | { | |
62 | return ttm_mem_global_init(ref->object); | |
63 | } | |
64 | ||
65 | static void radeon_ttm_mem_global_release(struct ttm_global_reference *ref) | |
66 | { | |
67 | ttm_mem_global_release(ref->object); | |
68 | } | |
69 | ||
70 | static int radeon_ttm_global_init(struct radeon_device *rdev) | |
71 | { | |
72 | struct ttm_global_reference *global_ref; | |
73 | int r; | |
74 | ||
75 | rdev->mman.mem_global_referenced = false; | |
76 | global_ref = &rdev->mman.mem_global_ref; | |
77 | global_ref->global_type = TTM_GLOBAL_TTM_MEM; | |
78 | global_ref->size = sizeof(struct ttm_mem_global); | |
79 | global_ref->init = &radeon_ttm_mem_global_init; | |
80 | global_ref->release = &radeon_ttm_mem_global_release; | |
81 | r = ttm_global_item_ref(global_ref); | |
82 | if (r != 0) { | |
a987fcaa TH |
83 | DRM_ERROR("Failed setting up TTM memory accounting " |
84 | "subsystem.\n"); | |
771fe6b9 JG |
85 | return r; |
86 | } | |
a987fcaa TH |
87 | |
88 | rdev->mman.bo_global_ref.mem_glob = | |
89 | rdev->mman.mem_global_ref.object; | |
90 | global_ref = &rdev->mman.bo_global_ref.ref; | |
91 | global_ref->global_type = TTM_GLOBAL_TTM_BO; | |
7f5f4db2 | 92 | global_ref->size = sizeof(struct ttm_bo_global); |
a987fcaa TH |
93 | global_ref->init = &ttm_bo_global_init; |
94 | global_ref->release = &ttm_bo_global_release; | |
95 | r = ttm_global_item_ref(global_ref); | |
96 | if (r != 0) { | |
97 | DRM_ERROR("Failed setting up TTM BO subsystem.\n"); | |
98 | ttm_global_item_unref(&rdev->mman.mem_global_ref); | |
99 | return r; | |
100 | } | |
101 | ||
771fe6b9 JG |
102 | rdev->mman.mem_global_referenced = true; |
103 | return 0; | |
104 | } | |
105 | ||
106 | static void radeon_ttm_global_fini(struct radeon_device *rdev) | |
107 | { | |
108 | if (rdev->mman.mem_global_referenced) { | |
a987fcaa | 109 | ttm_global_item_unref(&rdev->mman.bo_global_ref.ref); |
771fe6b9 JG |
110 | ttm_global_item_unref(&rdev->mman.mem_global_ref); |
111 | rdev->mman.mem_global_referenced = false; | |
112 | } | |
113 | } | |
114 | ||
115 | struct ttm_backend *radeon_ttm_backend_create(struct radeon_device *rdev); | |
116 | ||
117 | static struct ttm_backend* | |
118 | radeon_create_ttm_backend_entry(struct ttm_bo_device *bdev) | |
119 | { | |
120 | struct radeon_device *rdev; | |
121 | ||
122 | rdev = radeon_get_rdev(bdev); | |
123 | #if __OS_HAS_AGP | |
124 | if (rdev->flags & RADEON_IS_AGP) { | |
125 | return ttm_agp_backend_init(bdev, rdev->ddev->agp->bridge); | |
126 | } else | |
127 | #endif | |
128 | { | |
129 | return radeon_ttm_backend_create(rdev); | |
130 | } | |
131 | } | |
132 | ||
133 | static int radeon_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags) | |
134 | { | |
135 | return 0; | |
136 | } | |
137 | ||
138 | static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, | |
139 | struct ttm_mem_type_manager *man) | |
140 | { | |
141 | struct radeon_device *rdev; | |
142 | ||
143 | rdev = radeon_get_rdev(bdev); | |
144 | ||
145 | switch (type) { | |
146 | case TTM_PL_SYSTEM: | |
147 | /* System memory */ | |
148 | man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; | |
149 | man->available_caching = TTM_PL_MASK_CACHING; | |
150 | man->default_caching = TTM_PL_FLAG_CACHED; | |
151 | break; | |
152 | case TTM_PL_TT: | |
153 | man->gpu_offset = 0; | |
154 | man->available_caching = TTM_PL_MASK_CACHING; | |
155 | man->default_caching = TTM_PL_FLAG_CACHED; | |
55c93278 | 156 | man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA; |
771fe6b9 JG |
157 | #if __OS_HAS_AGP |
158 | if (rdev->flags & RADEON_IS_AGP) { | |
159 | if (!(drm_core_has_AGP(rdev->ddev) && rdev->ddev->agp)) { | |
160 | DRM_ERROR("AGP is not enabled for memory type %u\n", | |
161 | (unsigned)type); | |
162 | return -EINVAL; | |
163 | } | |
164 | man->io_offset = rdev->mc.agp_base; | |
165 | man->io_size = rdev->mc.gtt_size; | |
166 | man->io_addr = NULL; | |
55c93278 MD |
167 | if (!rdev->ddev->agp->cant_use_aperture) |
168 | man->flags = TTM_MEMTYPE_FLAG_NEEDS_IOREMAP | | |
169 | TTM_MEMTYPE_FLAG_MAPPABLE; | |
771fe6b9 JG |
170 | man->available_caching = TTM_PL_FLAG_UNCACHED | |
171 | TTM_PL_FLAG_WC; | |
172 | man->default_caching = TTM_PL_FLAG_WC; | |
173 | } else | |
174 | #endif | |
175 | { | |
176 | man->io_offset = 0; | |
177 | man->io_size = 0; | |
178 | man->io_addr = NULL; | |
771fe6b9 JG |
179 | } |
180 | break; | |
181 | case TTM_PL_VRAM: | |
182 | /* "On-card" video ram */ | |
183 | man->gpu_offset = 0; | |
184 | man->flags = TTM_MEMTYPE_FLAG_FIXED | | |
185 | TTM_MEMTYPE_FLAG_NEEDS_IOREMAP | | |
186 | TTM_MEMTYPE_FLAG_MAPPABLE; | |
187 | man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC; | |
188 | man->default_caching = TTM_PL_FLAG_WC; | |
189 | man->io_addr = NULL; | |
190 | man->io_offset = rdev->mc.aper_base; | |
191 | man->io_size = rdev->mc.aper_size; | |
192 | break; | |
193 | default: | |
194 | DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); | |
195 | return -EINVAL; | |
196 | } | |
197 | return 0; | |
198 | } | |
199 | ||
200 | static uint32_t radeon_evict_flags(struct ttm_buffer_object *bo) | |
201 | { | |
202 | uint32_t cur_placement = bo->mem.placement & ~TTM_PL_MASK_MEMTYPE; | |
203 | ||
204 | switch (bo->mem.mem_type) { | |
205 | default: | |
206 | return (cur_placement & ~TTM_PL_MASK_CACHING) | | |
207 | TTM_PL_FLAG_SYSTEM | | |
208 | TTM_PL_FLAG_CACHED; | |
209 | } | |
210 | } | |
211 | ||
212 | static int radeon_verify_access(struct ttm_buffer_object *bo, struct file *filp) | |
213 | { | |
214 | return 0; | |
215 | } | |
216 | ||
217 | static void radeon_move_null(struct ttm_buffer_object *bo, | |
218 | struct ttm_mem_reg *new_mem) | |
219 | { | |
220 | struct ttm_mem_reg *old_mem = &bo->mem; | |
221 | ||
222 | BUG_ON(old_mem->mm_node != NULL); | |
223 | *old_mem = *new_mem; | |
224 | new_mem->mm_node = NULL; | |
225 | } | |
226 | ||
227 | static int radeon_move_blit(struct ttm_buffer_object *bo, | |
228 | bool evict, int no_wait, | |
229 | struct ttm_mem_reg *new_mem, | |
230 | struct ttm_mem_reg *old_mem) | |
231 | { | |
232 | struct radeon_device *rdev; | |
233 | uint64_t old_start, new_start; | |
234 | struct radeon_fence *fence; | |
235 | int r; | |
236 | ||
237 | rdev = radeon_get_rdev(bo->bdev); | |
238 | r = radeon_fence_create(rdev, &fence); | |
239 | if (unlikely(r)) { | |
240 | return r; | |
241 | } | |
242 | old_start = old_mem->mm_node->start << PAGE_SHIFT; | |
243 | new_start = new_mem->mm_node->start << PAGE_SHIFT; | |
244 | ||
245 | switch (old_mem->mem_type) { | |
246 | case TTM_PL_VRAM: | |
247 | old_start += rdev->mc.vram_location; | |
248 | break; | |
249 | case TTM_PL_TT: | |
250 | old_start += rdev->mc.gtt_location; | |
251 | break; | |
252 | default: | |
253 | DRM_ERROR("Unknown placement %d\n", old_mem->mem_type); | |
254 | return -EINVAL; | |
255 | } | |
256 | switch (new_mem->mem_type) { | |
257 | case TTM_PL_VRAM: | |
258 | new_start += rdev->mc.vram_location; | |
259 | break; | |
260 | case TTM_PL_TT: | |
261 | new_start += rdev->mc.gtt_location; | |
262 | break; | |
263 | default: | |
264 | DRM_ERROR("Unknown placement %d\n", old_mem->mem_type); | |
265 | return -EINVAL; | |
266 | } | |
267 | if (!rdev->cp.ready) { | |
268 | DRM_ERROR("Trying to move memory with CP turned off.\n"); | |
269 | return -EINVAL; | |
270 | } | |
271 | r = radeon_copy(rdev, old_start, new_start, new_mem->num_pages, fence); | |
272 | /* FIXME: handle copy error */ | |
273 | r = ttm_bo_move_accel_cleanup(bo, (void *)fence, NULL, | |
274 | evict, no_wait, new_mem); | |
275 | radeon_fence_unref(&fence); | |
276 | return r; | |
277 | } | |
278 | ||
279 | static int radeon_move_vram_ram(struct ttm_buffer_object *bo, | |
280 | bool evict, bool interruptible, bool no_wait, | |
281 | struct ttm_mem_reg *new_mem) | |
282 | { | |
283 | struct radeon_device *rdev; | |
284 | struct ttm_mem_reg *old_mem = &bo->mem; | |
285 | struct ttm_mem_reg tmp_mem; | |
286 | uint32_t proposed_placement; | |
287 | int r; | |
288 | ||
289 | rdev = radeon_get_rdev(bo->bdev); | |
290 | tmp_mem = *new_mem; | |
291 | tmp_mem.mm_node = NULL; | |
292 | proposed_placement = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING; | |
293 | r = ttm_bo_mem_space(bo, proposed_placement, &tmp_mem, | |
294 | interruptible, no_wait); | |
295 | if (unlikely(r)) { | |
296 | return r; | |
297 | } | |
298 | r = ttm_tt_bind(bo->ttm, &tmp_mem); | |
299 | if (unlikely(r)) { | |
300 | goto out_cleanup; | |
301 | } | |
302 | r = radeon_move_blit(bo, true, no_wait, &tmp_mem, old_mem); | |
303 | if (unlikely(r)) { | |
304 | goto out_cleanup; | |
305 | } | |
306 | r = ttm_bo_move_ttm(bo, true, no_wait, new_mem); | |
307 | out_cleanup: | |
308 | if (tmp_mem.mm_node) { | |
a987fcaa TH |
309 | struct ttm_bo_global *glob = rdev->mman.bdev.glob; |
310 | ||
311 | spin_lock(&glob->lru_lock); | |
771fe6b9 | 312 | drm_mm_put_block(tmp_mem.mm_node); |
a987fcaa | 313 | spin_unlock(&glob->lru_lock); |
771fe6b9 JG |
314 | return r; |
315 | } | |
316 | return r; | |
317 | } | |
318 | ||
319 | static int radeon_move_ram_vram(struct ttm_buffer_object *bo, | |
320 | bool evict, bool interruptible, bool no_wait, | |
321 | struct ttm_mem_reg *new_mem) | |
322 | { | |
323 | struct radeon_device *rdev; | |
324 | struct ttm_mem_reg *old_mem = &bo->mem; | |
325 | struct ttm_mem_reg tmp_mem; | |
326 | uint32_t proposed_flags; | |
327 | int r; | |
328 | ||
329 | rdev = radeon_get_rdev(bo->bdev); | |
330 | tmp_mem = *new_mem; | |
331 | tmp_mem.mm_node = NULL; | |
332 | proposed_flags = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING; | |
333 | r = ttm_bo_mem_space(bo, proposed_flags, &tmp_mem, | |
334 | interruptible, no_wait); | |
335 | if (unlikely(r)) { | |
336 | return r; | |
337 | } | |
338 | r = ttm_bo_move_ttm(bo, true, no_wait, &tmp_mem); | |
339 | if (unlikely(r)) { | |
340 | goto out_cleanup; | |
341 | } | |
342 | r = radeon_move_blit(bo, true, no_wait, new_mem, old_mem); | |
343 | if (unlikely(r)) { | |
344 | goto out_cleanup; | |
345 | } | |
346 | out_cleanup: | |
347 | if (tmp_mem.mm_node) { | |
a987fcaa TH |
348 | struct ttm_bo_global *glob = rdev->mman.bdev.glob; |
349 | ||
350 | spin_lock(&glob->lru_lock); | |
771fe6b9 | 351 | drm_mm_put_block(tmp_mem.mm_node); |
a987fcaa | 352 | spin_unlock(&glob->lru_lock); |
771fe6b9 JG |
353 | return r; |
354 | } | |
355 | return r; | |
356 | } | |
357 | ||
358 | static int radeon_bo_move(struct ttm_buffer_object *bo, | |
359 | bool evict, bool interruptible, bool no_wait, | |
360 | struct ttm_mem_reg *new_mem) | |
361 | { | |
362 | struct radeon_device *rdev; | |
363 | struct ttm_mem_reg *old_mem = &bo->mem; | |
364 | int r; | |
365 | ||
366 | rdev = radeon_get_rdev(bo->bdev); | |
367 | if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) { | |
368 | radeon_move_null(bo, new_mem); | |
369 | return 0; | |
370 | } | |
371 | if ((old_mem->mem_type == TTM_PL_TT && | |
372 | new_mem->mem_type == TTM_PL_SYSTEM) || | |
373 | (old_mem->mem_type == TTM_PL_SYSTEM && | |
374 | new_mem->mem_type == TTM_PL_TT)) { | |
375 | /* bind is enought */ | |
376 | radeon_move_null(bo, new_mem); | |
377 | return 0; | |
378 | } | |
3ce0a23d | 379 | if (!rdev->cp.ready || rdev->asic->copy == NULL) { |
771fe6b9 | 380 | /* use memcpy */ |
1ab2e105 | 381 | goto memcpy; |
771fe6b9 JG |
382 | } |
383 | ||
384 | if (old_mem->mem_type == TTM_PL_VRAM && | |
385 | new_mem->mem_type == TTM_PL_SYSTEM) { | |
1ab2e105 | 386 | r = radeon_move_vram_ram(bo, evict, interruptible, |
771fe6b9 JG |
387 | no_wait, new_mem); |
388 | } else if (old_mem->mem_type == TTM_PL_SYSTEM && | |
389 | new_mem->mem_type == TTM_PL_VRAM) { | |
1ab2e105 | 390 | r = radeon_move_ram_vram(bo, evict, interruptible, |
771fe6b9 JG |
391 | no_wait, new_mem); |
392 | } else { | |
393 | r = radeon_move_blit(bo, evict, no_wait, new_mem, old_mem); | |
771fe6b9 | 394 | } |
1ab2e105 MD |
395 | |
396 | if (r) { | |
397 | memcpy: | |
398 | r = ttm_bo_move_memcpy(bo, evict, no_wait, new_mem); | |
399 | } | |
400 | ||
771fe6b9 JG |
401 | return r; |
402 | } | |
403 | ||
404 | const uint32_t radeon_mem_prios[] = { | |
405 | TTM_PL_VRAM, | |
406 | TTM_PL_TT, | |
407 | TTM_PL_SYSTEM, | |
408 | }; | |
409 | ||
410 | const uint32_t radeon_busy_prios[] = { | |
411 | TTM_PL_TT, | |
412 | TTM_PL_VRAM, | |
413 | TTM_PL_SYSTEM, | |
414 | }; | |
415 | ||
416 | static int radeon_sync_obj_wait(void *sync_obj, void *sync_arg, | |
417 | bool lazy, bool interruptible) | |
418 | { | |
419 | return radeon_fence_wait((struct radeon_fence *)sync_obj, interruptible); | |
420 | } | |
421 | ||
422 | static int radeon_sync_obj_flush(void *sync_obj, void *sync_arg) | |
423 | { | |
424 | return 0; | |
425 | } | |
426 | ||
427 | static void radeon_sync_obj_unref(void **sync_obj) | |
428 | { | |
429 | radeon_fence_unref((struct radeon_fence **)sync_obj); | |
430 | } | |
431 | ||
432 | static void *radeon_sync_obj_ref(void *sync_obj) | |
433 | { | |
434 | return radeon_fence_ref((struct radeon_fence *)sync_obj); | |
435 | } | |
436 | ||
437 | static bool radeon_sync_obj_signaled(void *sync_obj, void *sync_arg) | |
438 | { | |
439 | return radeon_fence_signaled((struct radeon_fence *)sync_obj); | |
440 | } | |
441 | ||
442 | static struct ttm_bo_driver radeon_bo_driver = { | |
443 | .mem_type_prio = radeon_mem_prios, | |
444 | .mem_busy_prio = radeon_busy_prios, | |
445 | .num_mem_type_prio = ARRAY_SIZE(radeon_mem_prios), | |
446 | .num_mem_busy_prio = ARRAY_SIZE(radeon_busy_prios), | |
447 | .create_ttm_backend_entry = &radeon_create_ttm_backend_entry, | |
448 | .invalidate_caches = &radeon_invalidate_caches, | |
449 | .init_mem_type = &radeon_init_mem_type, | |
450 | .evict_flags = &radeon_evict_flags, | |
451 | .move = &radeon_bo_move, | |
452 | .verify_access = &radeon_verify_access, | |
453 | .sync_obj_signaled = &radeon_sync_obj_signaled, | |
454 | .sync_obj_wait = &radeon_sync_obj_wait, | |
455 | .sync_obj_flush = &radeon_sync_obj_flush, | |
456 | .sync_obj_unref = &radeon_sync_obj_unref, | |
457 | .sync_obj_ref = &radeon_sync_obj_ref, | |
e024e110 DA |
458 | .move_notify = &radeon_bo_move_notify, |
459 | .fault_reserve_notify = &radeon_bo_fault_reserve_notify, | |
771fe6b9 JG |
460 | }; |
461 | ||
462 | int radeon_ttm_init(struct radeon_device *rdev) | |
463 | { | |
464 | int r; | |
465 | ||
466 | r = radeon_ttm_global_init(rdev); | |
467 | if (r) { | |
468 | return r; | |
469 | } | |
470 | /* No others user of address space so set it to 0 */ | |
471 | r = ttm_bo_device_init(&rdev->mman.bdev, | |
a987fcaa | 472 | rdev->mman.bo_global_ref.ref.object, |
ad49f501 DA |
473 | &radeon_bo_driver, DRM_FILE_PAGE_OFFSET, |
474 | rdev->need_dma32); | |
771fe6b9 JG |
475 | if (r) { |
476 | DRM_ERROR("failed initializing buffer object driver(%d).\n", r); | |
477 | return r; | |
478 | } | |
479 | r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_VRAM, 0, | |
7a50f01a | 480 | ((rdev->mc.real_vram_size) >> PAGE_SHIFT)); |
771fe6b9 JG |
481 | if (r) { |
482 | DRM_ERROR("Failed initializing VRAM heap.\n"); | |
483 | return r; | |
484 | } | |
485 | r = radeon_object_create(rdev, NULL, 256 * 1024, true, | |
486 | RADEON_GEM_DOMAIN_VRAM, false, | |
487 | &rdev->stollen_vga_memory); | |
488 | if (r) { | |
489 | return r; | |
490 | } | |
491 | r = radeon_object_pin(rdev->stollen_vga_memory, RADEON_GEM_DOMAIN_VRAM, NULL); | |
492 | if (r) { | |
493 | radeon_object_unref(&rdev->stollen_vga_memory); | |
494 | return r; | |
495 | } | |
496 | DRM_INFO("radeon: %uM of VRAM memory ready\n", | |
3ce0a23d | 497 | (unsigned)rdev->mc.real_vram_size / (1024 * 1024)); |
771fe6b9 JG |
498 | r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT, 0, |
499 | ((rdev->mc.gtt_size) >> PAGE_SHIFT)); | |
500 | if (r) { | |
501 | DRM_ERROR("Failed initializing GTT heap.\n"); | |
502 | return r; | |
503 | } | |
504 | DRM_INFO("radeon: %uM of GTT memory ready.\n", | |
3ce0a23d | 505 | (unsigned)(rdev->mc.gtt_size / (1024 * 1024))); |
771fe6b9 JG |
506 | if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) { |
507 | rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping; | |
508 | } | |
fa8a1238 DA |
509 | |
510 | r = radeon_ttm_debugfs_init(rdev); | |
511 | if (r) { | |
512 | DRM_ERROR("Failed to init debugfs\n"); | |
513 | return r; | |
514 | } | |
771fe6b9 JG |
515 | return 0; |
516 | } | |
517 | ||
518 | void radeon_ttm_fini(struct radeon_device *rdev) | |
519 | { | |
520 | if (rdev->stollen_vga_memory) { | |
521 | radeon_object_unpin(rdev->stollen_vga_memory); | |
522 | radeon_object_unref(&rdev->stollen_vga_memory); | |
523 | } | |
524 | ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_VRAM); | |
525 | ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_TT); | |
526 | ttm_bo_device_release(&rdev->mman.bdev); | |
527 | radeon_gart_fini(rdev); | |
528 | radeon_ttm_global_fini(rdev); | |
529 | DRM_INFO("radeon: ttm finalized\n"); | |
530 | } | |
531 | ||
532 | static struct vm_operations_struct radeon_ttm_vm_ops; | |
f0f37e2f | 533 | static const struct vm_operations_struct *ttm_vm_ops = NULL; |
771fe6b9 JG |
534 | |
535 | static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) | |
536 | { | |
537 | struct ttm_buffer_object *bo; | |
538 | int r; | |
539 | ||
540 | bo = (struct ttm_buffer_object *)vma->vm_private_data; | |
541 | if (bo == NULL) { | |
542 | return VM_FAULT_NOPAGE; | |
543 | } | |
544 | r = ttm_vm_ops->fault(vma, vmf); | |
545 | return r; | |
546 | } | |
547 | ||
548 | int radeon_mmap(struct file *filp, struct vm_area_struct *vma) | |
549 | { | |
550 | struct drm_file *file_priv; | |
551 | struct radeon_device *rdev; | |
552 | int r; | |
553 | ||
554 | if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) { | |
555 | return drm_mmap(filp, vma); | |
556 | } | |
557 | ||
558 | file_priv = (struct drm_file *)filp->private_data; | |
559 | rdev = file_priv->minor->dev->dev_private; | |
560 | if (rdev == NULL) { | |
561 | return -EINVAL; | |
562 | } | |
563 | r = ttm_bo_mmap(filp, vma, &rdev->mman.bdev); | |
564 | if (unlikely(r != 0)) { | |
565 | return r; | |
566 | } | |
567 | if (unlikely(ttm_vm_ops == NULL)) { | |
568 | ttm_vm_ops = vma->vm_ops; | |
569 | radeon_ttm_vm_ops = *ttm_vm_ops; | |
570 | radeon_ttm_vm_ops.fault = &radeon_ttm_fault; | |
571 | } | |
572 | vma->vm_ops = &radeon_ttm_vm_ops; | |
573 | return 0; | |
574 | } | |
575 | ||
576 | ||
577 | /* | |
578 | * TTM backend functions. | |
579 | */ | |
580 | struct radeon_ttm_backend { | |
581 | struct ttm_backend backend; | |
582 | struct radeon_device *rdev; | |
583 | unsigned long num_pages; | |
584 | struct page **pages; | |
585 | struct page *dummy_read_page; | |
586 | bool populated; | |
587 | bool bound; | |
588 | unsigned offset; | |
589 | }; | |
590 | ||
591 | static int radeon_ttm_backend_populate(struct ttm_backend *backend, | |
592 | unsigned long num_pages, | |
593 | struct page **pages, | |
594 | struct page *dummy_read_page) | |
595 | { | |
596 | struct radeon_ttm_backend *gtt; | |
597 | ||
598 | gtt = container_of(backend, struct radeon_ttm_backend, backend); | |
599 | gtt->pages = pages; | |
600 | gtt->num_pages = num_pages; | |
601 | gtt->dummy_read_page = dummy_read_page; | |
602 | gtt->populated = true; | |
603 | return 0; | |
604 | } | |
605 | ||
606 | static void radeon_ttm_backend_clear(struct ttm_backend *backend) | |
607 | { | |
608 | struct radeon_ttm_backend *gtt; | |
609 | ||
610 | gtt = container_of(backend, struct radeon_ttm_backend, backend); | |
611 | gtt->pages = NULL; | |
612 | gtt->num_pages = 0; | |
613 | gtt->dummy_read_page = NULL; | |
614 | gtt->populated = false; | |
615 | gtt->bound = false; | |
616 | } | |
617 | ||
618 | ||
619 | static int radeon_ttm_backend_bind(struct ttm_backend *backend, | |
620 | struct ttm_mem_reg *bo_mem) | |
621 | { | |
622 | struct radeon_ttm_backend *gtt; | |
623 | int r; | |
624 | ||
625 | gtt = container_of(backend, struct radeon_ttm_backend, backend); | |
626 | gtt->offset = bo_mem->mm_node->start << PAGE_SHIFT; | |
627 | if (!gtt->num_pages) { | |
628 | WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n", gtt->num_pages, bo_mem, backend); | |
629 | } | |
630 | r = radeon_gart_bind(gtt->rdev, gtt->offset, | |
631 | gtt->num_pages, gtt->pages); | |
632 | if (r) { | |
633 | DRM_ERROR("failed to bind %lu pages at 0x%08X\n", | |
634 | gtt->num_pages, gtt->offset); | |
635 | return r; | |
636 | } | |
637 | gtt->bound = true; | |
638 | return 0; | |
639 | } | |
640 | ||
641 | static int radeon_ttm_backend_unbind(struct ttm_backend *backend) | |
642 | { | |
643 | struct radeon_ttm_backend *gtt; | |
644 | ||
645 | gtt = container_of(backend, struct radeon_ttm_backend, backend); | |
646 | radeon_gart_unbind(gtt->rdev, gtt->offset, gtt->num_pages); | |
647 | gtt->bound = false; | |
648 | return 0; | |
649 | } | |
650 | ||
651 | static void radeon_ttm_backend_destroy(struct ttm_backend *backend) | |
652 | { | |
653 | struct radeon_ttm_backend *gtt; | |
654 | ||
655 | gtt = container_of(backend, struct radeon_ttm_backend, backend); | |
656 | if (gtt->bound) { | |
657 | radeon_ttm_backend_unbind(backend); | |
658 | } | |
659 | kfree(gtt); | |
660 | } | |
661 | ||
662 | static struct ttm_backend_func radeon_backend_func = { | |
663 | .populate = &radeon_ttm_backend_populate, | |
664 | .clear = &radeon_ttm_backend_clear, | |
665 | .bind = &radeon_ttm_backend_bind, | |
666 | .unbind = &radeon_ttm_backend_unbind, | |
667 | .destroy = &radeon_ttm_backend_destroy, | |
668 | }; | |
669 | ||
670 | struct ttm_backend *radeon_ttm_backend_create(struct radeon_device *rdev) | |
671 | { | |
672 | struct radeon_ttm_backend *gtt; | |
673 | ||
674 | gtt = kzalloc(sizeof(struct radeon_ttm_backend), GFP_KERNEL); | |
675 | if (gtt == NULL) { | |
676 | return NULL; | |
677 | } | |
678 | gtt->backend.bdev = &rdev->mman.bdev; | |
679 | gtt->backend.flags = 0; | |
680 | gtt->backend.func = &radeon_backend_func; | |
681 | gtt->rdev = rdev; | |
682 | gtt->pages = NULL; | |
683 | gtt->num_pages = 0; | |
684 | gtt->dummy_read_page = NULL; | |
685 | gtt->populated = false; | |
686 | gtt->bound = false; | |
687 | return >t->backend; | |
688 | } | |
fa8a1238 DA |
689 | |
690 | #define RADEON_DEBUGFS_MEM_TYPES 2 | |
691 | ||
692 | static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES]; | |
693 | static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES][32]; | |
694 | ||
695 | #if defined(CONFIG_DEBUG_FS) | |
696 | static int radeon_mm_dump_table(struct seq_file *m, void *data) | |
697 | { | |
698 | struct drm_info_node *node = (struct drm_info_node *)m->private; | |
699 | struct drm_mm *mm = (struct drm_mm *)node->info_ent->data; | |
700 | struct drm_device *dev = node->minor->dev; | |
701 | struct radeon_device *rdev = dev->dev_private; | |
702 | int ret; | |
703 | struct ttm_bo_global *glob = rdev->mman.bdev.glob; | |
704 | ||
705 | spin_lock(&glob->lru_lock); | |
706 | ret = drm_mm_dump_table(m, mm); | |
707 | spin_unlock(&glob->lru_lock); | |
708 | return ret; | |
709 | } | |
710 | #endif | |
711 | ||
712 | static int radeon_ttm_debugfs_init(struct radeon_device *rdev) | |
713 | { | |
714 | unsigned i; | |
715 | ||
716 | #if defined(CONFIG_DEBUG_FS) | |
717 | for (i = 0; i < RADEON_DEBUGFS_MEM_TYPES; i++) { | |
718 | if (i == 0) | |
719 | sprintf(radeon_mem_types_names[i], "radeon_vram_mm"); | |
720 | else | |
721 | sprintf(radeon_mem_types_names[i], "radeon_gtt_mm"); | |
722 | radeon_mem_types_list[i].name = radeon_mem_types_names[i]; | |
723 | radeon_mem_types_list[i].show = &radeon_mm_dump_table; | |
724 | radeon_mem_types_list[i].driver_features = 0; | |
725 | if (i == 0) | |
726 | radeon_mem_types_list[i].data = &rdev->mman.bdev.man[TTM_PL_VRAM].manager; | |
727 | else | |
728 | radeon_mem_types_list[i].data = &rdev->mman.bdev.man[TTM_PL_TT].manager; | |
729 | ||
730 | } | |
731 | return radeon_debugfs_add_files(rdev, radeon_mem_types_list, RADEON_DEBUGFS_MEM_TYPES); | |
732 | ||
733 | #endif | |
734 | return 0; | |
735 | } |