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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> | |
8d7cddcd | 36 | #include <ttm/ttm_page_alloc.h> |
771fe6b9 JG |
37 | #include <drm/drmP.h> |
38 | #include <drm/radeon_drm.h> | |
fa8a1238 | 39 | #include <linux/seq_file.h> |
5a0e3ad6 | 40 | #include <linux/slab.h> |
4cfe7629 | 41 | #include <linux/swiotlb.h> |
f72a113a CK |
42 | #include <linux/swap.h> |
43 | #include <linux/pagemap.h> | |
2014b569 | 44 | #include <linux/debugfs.h> |
771fe6b9 JG |
45 | #include "radeon_reg.h" |
46 | #include "radeon.h" | |
47 | ||
48 | #define DRM_FILE_PAGE_OFFSET (0x100000000ULL >> PAGE_SHIFT) | |
49 | ||
fa8a1238 | 50 | static int radeon_ttm_debugfs_init(struct radeon_device *rdev); |
2014b569 | 51 | static void radeon_ttm_debugfs_fini(struct radeon_device *rdev); |
fa8a1238 | 52 | |
771fe6b9 JG |
53 | static struct radeon_device *radeon_get_rdev(struct ttm_bo_device *bdev) |
54 | { | |
55 | struct radeon_mman *mman; | |
56 | struct radeon_device *rdev; | |
57 | ||
58 | mman = container_of(bdev, struct radeon_mman, bdev); | |
59 | rdev = container_of(mman, struct radeon_device, mman); | |
60 | return rdev; | |
61 | } | |
62 | ||
63 | ||
64 | /* | |
65 | * Global memory. | |
66 | */ | |
ba4420c2 | 67 | static int radeon_ttm_mem_global_init(struct drm_global_reference *ref) |
771fe6b9 JG |
68 | { |
69 | return ttm_mem_global_init(ref->object); | |
70 | } | |
71 | ||
ba4420c2 | 72 | static void radeon_ttm_mem_global_release(struct drm_global_reference *ref) |
771fe6b9 JG |
73 | { |
74 | ttm_mem_global_release(ref->object); | |
75 | } | |
76 | ||
77 | static int radeon_ttm_global_init(struct radeon_device *rdev) | |
78 | { | |
ba4420c2 | 79 | struct drm_global_reference *global_ref; |
771fe6b9 JG |
80 | int r; |
81 | ||
82 | rdev->mman.mem_global_referenced = false; | |
83 | global_ref = &rdev->mman.mem_global_ref; | |
ba4420c2 | 84 | global_ref->global_type = DRM_GLOBAL_TTM_MEM; |
771fe6b9 JG |
85 | global_ref->size = sizeof(struct ttm_mem_global); |
86 | global_ref->init = &radeon_ttm_mem_global_init; | |
87 | global_ref->release = &radeon_ttm_mem_global_release; | |
ba4420c2 | 88 | r = drm_global_item_ref(global_ref); |
771fe6b9 | 89 | if (r != 0) { |
a987fcaa TH |
90 | DRM_ERROR("Failed setting up TTM memory accounting " |
91 | "subsystem.\n"); | |
771fe6b9 JG |
92 | return r; |
93 | } | |
a987fcaa TH |
94 | |
95 | rdev->mman.bo_global_ref.mem_glob = | |
96 | rdev->mman.mem_global_ref.object; | |
97 | global_ref = &rdev->mman.bo_global_ref.ref; | |
ba4420c2 | 98 | global_ref->global_type = DRM_GLOBAL_TTM_BO; |
7f5f4db2 | 99 | global_ref->size = sizeof(struct ttm_bo_global); |
a987fcaa TH |
100 | global_ref->init = &ttm_bo_global_init; |
101 | global_ref->release = &ttm_bo_global_release; | |
ba4420c2 | 102 | r = drm_global_item_ref(global_ref); |
a987fcaa TH |
103 | if (r != 0) { |
104 | DRM_ERROR("Failed setting up TTM BO subsystem.\n"); | |
ba4420c2 | 105 | drm_global_item_unref(&rdev->mman.mem_global_ref); |
a987fcaa TH |
106 | return r; |
107 | } | |
108 | ||
771fe6b9 JG |
109 | rdev->mman.mem_global_referenced = true; |
110 | return 0; | |
111 | } | |
112 | ||
113 | static void radeon_ttm_global_fini(struct radeon_device *rdev) | |
114 | { | |
115 | if (rdev->mman.mem_global_referenced) { | |
ba4420c2 DA |
116 | drm_global_item_unref(&rdev->mman.bo_global_ref.ref); |
117 | drm_global_item_unref(&rdev->mman.mem_global_ref); | |
771fe6b9 JG |
118 | rdev->mman.mem_global_referenced = false; |
119 | } | |
120 | } | |
121 | ||
771fe6b9 JG |
122 | static int radeon_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags) |
123 | { | |
124 | return 0; | |
125 | } | |
126 | ||
127 | static int radeon_init_mem_type(struct ttm_bo_device *bdev, uint32_t type, | |
128 | struct ttm_mem_type_manager *man) | |
129 | { | |
130 | struct radeon_device *rdev; | |
131 | ||
132 | rdev = radeon_get_rdev(bdev); | |
133 | ||
134 | switch (type) { | |
135 | case TTM_PL_SYSTEM: | |
136 | /* System memory */ | |
137 | man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; | |
138 | man->available_caching = TTM_PL_MASK_CACHING; | |
139 | man->default_caching = TTM_PL_FLAG_CACHED; | |
140 | break; | |
141 | case TTM_PL_TT: | |
d961db75 | 142 | man->func = &ttm_bo_manager_func; |
d594e46a | 143 | man->gpu_offset = rdev->mc.gtt_start; |
771fe6b9 JG |
144 | man->available_caching = TTM_PL_MASK_CACHING; |
145 | man->default_caching = TTM_PL_FLAG_CACHED; | |
55c93278 | 146 | man->flags = TTM_MEMTYPE_FLAG_MAPPABLE | TTM_MEMTYPE_FLAG_CMA; |
a7fb8a23 | 147 | #if IS_ENABLED(CONFIG_AGP) |
771fe6b9 | 148 | if (rdev->flags & RADEON_IS_AGP) { |
d9906753 | 149 | if (!rdev->ddev->agp) { |
771fe6b9 JG |
150 | DRM_ERROR("AGP is not enabled for memory type %u\n", |
151 | (unsigned)type); | |
152 | return -EINVAL; | |
153 | } | |
55c93278 | 154 | if (!rdev->ddev->agp->cant_use_aperture) |
0a2d50e3 | 155 | man->flags = TTM_MEMTYPE_FLAG_MAPPABLE; |
771fe6b9 JG |
156 | man->available_caching = TTM_PL_FLAG_UNCACHED | |
157 | TTM_PL_FLAG_WC; | |
158 | man->default_caching = TTM_PL_FLAG_WC; | |
771fe6b9 | 159 | } |
0c321c79 | 160 | #endif |
771fe6b9 JG |
161 | break; |
162 | case TTM_PL_VRAM: | |
163 | /* "On-card" video ram */ | |
d961db75 | 164 | man->func = &ttm_bo_manager_func; |
d594e46a | 165 | man->gpu_offset = rdev->mc.vram_start; |
771fe6b9 | 166 | man->flags = TTM_MEMTYPE_FLAG_FIXED | |
771fe6b9 JG |
167 | TTM_MEMTYPE_FLAG_MAPPABLE; |
168 | man->available_caching = TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_WC; | |
169 | man->default_caching = TTM_PL_FLAG_WC; | |
771fe6b9 JG |
170 | break; |
171 | default: | |
172 | DRM_ERROR("Unsupported memory type %u\n", (unsigned)type); | |
173 | return -EINVAL; | |
174 | } | |
175 | return 0; | |
176 | } | |
177 | ||
312ea8da JG |
178 | static void radeon_evict_flags(struct ttm_buffer_object *bo, |
179 | struct ttm_placement *placement) | |
771fe6b9 | 180 | { |
f1217ed0 CK |
181 | static struct ttm_place placements = { |
182 | .fpfn = 0, | |
183 | .lpfn = 0, | |
184 | .flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM | |
185 | }; | |
186 | ||
d03d8589 | 187 | struct radeon_bo *rbo; |
d03d8589 JG |
188 | |
189 | if (!radeon_ttm_bo_is_radeon_bo(bo)) { | |
d03d8589 JG |
190 | placement->placement = &placements; |
191 | placement->busy_placement = &placements; | |
192 | placement->num_placement = 1; | |
193 | placement->num_busy_placement = 1; | |
194 | return; | |
195 | } | |
196 | rbo = container_of(bo, struct radeon_bo, tbo); | |
771fe6b9 | 197 | switch (bo->mem.mem_type) { |
312ea8da | 198 | case TTM_PL_VRAM: |
5e5c21ca | 199 | if (rbo->rdev->ring[radeon_copy_ring_index(rbo->rdev)].ready == false) |
9270eb1b | 200 | radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU); |
2a85aedd MD |
201 | else if (rbo->rdev->mc.visible_vram_size < rbo->rdev->mc.real_vram_size && |
202 | bo->mem.start < (rbo->rdev->mc.visible_vram_size >> PAGE_SHIFT)) { | |
203 | unsigned fpfn = rbo->rdev->mc.visible_vram_size >> PAGE_SHIFT; | |
204 | int i; | |
205 | ||
206 | /* Try evicting to the CPU inaccessible part of VRAM | |
207 | * first, but only set GTT as busy placement, so this | |
208 | * BO will be evicted to GTT rather than causing other | |
209 | * BOs to be evicted from VRAM | |
210 | */ | |
211 | radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM | | |
212 | RADEON_GEM_DOMAIN_GTT); | |
213 | rbo->placement.num_busy_placement = 0; | |
214 | for (i = 0; i < rbo->placement.num_placement; i++) { | |
215 | if (rbo->placements[i].flags & TTM_PL_FLAG_VRAM) { | |
216 | if (rbo->placements[0].fpfn < fpfn) | |
217 | rbo->placements[0].fpfn = fpfn; | |
218 | } else { | |
219 | rbo->placement.busy_placement = | |
220 | &rbo->placements[i]; | |
221 | rbo->placement.num_busy_placement = 1; | |
222 | } | |
223 | } | |
224 | } else | |
9270eb1b | 225 | radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT); |
312ea8da JG |
226 | break; |
227 | case TTM_PL_TT: | |
771fe6b9 | 228 | default: |
312ea8da | 229 | radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU); |
771fe6b9 | 230 | } |
eaa5fd1a | 231 | *placement = rbo->placement; |
771fe6b9 JG |
232 | } |
233 | ||
234 | static int radeon_verify_access(struct ttm_buffer_object *bo, struct file *filp) | |
235 | { | |
acb46527 DH |
236 | struct radeon_bo *rbo = container_of(bo, struct radeon_bo, tbo); |
237 | ||
b5dcec69 JG |
238 | if (radeon_ttm_tt_has_userptr(bo->ttm)) |
239 | return -EPERM; | |
d9a1f0b4 DH |
240 | return drm_vma_node_verify_access(&rbo->gem_base.vma_node, |
241 | filp->private_data); | |
771fe6b9 JG |
242 | } |
243 | ||
244 | static void radeon_move_null(struct ttm_buffer_object *bo, | |
245 | struct ttm_mem_reg *new_mem) | |
246 | { | |
247 | struct ttm_mem_reg *old_mem = &bo->mem; | |
248 | ||
249 | BUG_ON(old_mem->mm_node != NULL); | |
250 | *old_mem = *new_mem; | |
251 | new_mem->mm_node = NULL; | |
252 | } | |
253 | ||
254 | static int radeon_move_blit(struct ttm_buffer_object *bo, | |
97a875cb | 255 | bool evict, bool no_wait_gpu, |
9d87fa21 JG |
256 | struct ttm_mem_reg *new_mem, |
257 | struct ttm_mem_reg *old_mem) | |
771fe6b9 JG |
258 | { |
259 | struct radeon_device *rdev; | |
260 | uint64_t old_start, new_start; | |
876dc9f3 | 261 | struct radeon_fence *fence; |
57d20a43 | 262 | unsigned num_pages; |
876dc9f3 | 263 | int r, ridx; |
771fe6b9 JG |
264 | |
265 | rdev = radeon_get_rdev(bo->bdev); | |
876dc9f3 | 266 | ridx = radeon_copy_ring_index(rdev); |
13f479b9 CK |
267 | old_start = (u64)old_mem->start << PAGE_SHIFT; |
268 | new_start = (u64)new_mem->start << PAGE_SHIFT; | |
771fe6b9 JG |
269 | |
270 | switch (old_mem->mem_type) { | |
271 | case TTM_PL_VRAM: | |
d594e46a | 272 | old_start += rdev->mc.vram_start; |
771fe6b9 JG |
273 | break; |
274 | case TTM_PL_TT: | |
d594e46a | 275 | old_start += rdev->mc.gtt_start; |
771fe6b9 JG |
276 | break; |
277 | default: | |
278 | DRM_ERROR("Unknown placement %d\n", old_mem->mem_type); | |
279 | return -EINVAL; | |
280 | } | |
281 | switch (new_mem->mem_type) { | |
282 | case TTM_PL_VRAM: | |
d594e46a | 283 | new_start += rdev->mc.vram_start; |
771fe6b9 JG |
284 | break; |
285 | case TTM_PL_TT: | |
d594e46a | 286 | new_start += rdev->mc.gtt_start; |
771fe6b9 JG |
287 | break; |
288 | default: | |
289 | DRM_ERROR("Unknown placement %d\n", old_mem->mem_type); | |
290 | return -EINVAL; | |
291 | } | |
876dc9f3 | 292 | if (!rdev->ring[ridx].ready) { |
3000bf39 | 293 | DRM_ERROR("Trying to move memory with ring turned off.\n"); |
771fe6b9 JG |
294 | return -EINVAL; |
295 | } | |
003cefe0 AD |
296 | |
297 | BUILD_BUG_ON((PAGE_SIZE % RADEON_GPU_PAGE_SIZE) != 0); | |
298 | ||
57d20a43 CK |
299 | num_pages = new_mem->num_pages * (PAGE_SIZE / RADEON_GPU_PAGE_SIZE); |
300 | fence = radeon_copy(rdev, old_start, new_start, num_pages, bo->resv); | |
301 | if (IS_ERR(fence)) | |
302 | return PTR_ERR(fence); | |
303 | ||
74561cd4 | 304 | r = ttm_bo_move_accel_cleanup(bo, &fence->base, evict, new_mem); |
771fe6b9 JG |
305 | radeon_fence_unref(&fence); |
306 | return r; | |
307 | } | |
308 | ||
309 | static int radeon_move_vram_ram(struct ttm_buffer_object *bo, | |
9d87fa21 | 310 | bool evict, bool interruptible, |
97a875cb | 311 | bool no_wait_gpu, |
771fe6b9 JG |
312 | struct ttm_mem_reg *new_mem) |
313 | { | |
314 | struct radeon_device *rdev; | |
315 | struct ttm_mem_reg *old_mem = &bo->mem; | |
316 | struct ttm_mem_reg tmp_mem; | |
f1217ed0 | 317 | struct ttm_place placements; |
312ea8da | 318 | struct ttm_placement placement; |
771fe6b9 JG |
319 | int r; |
320 | ||
321 | rdev = radeon_get_rdev(bo->bdev); | |
322 | tmp_mem = *new_mem; | |
323 | tmp_mem.mm_node = NULL; | |
312ea8da JG |
324 | placement.num_placement = 1; |
325 | placement.placement = &placements; | |
326 | placement.num_busy_placement = 1; | |
327 | placement.busy_placement = &placements; | |
f1217ed0 CK |
328 | placements.fpfn = 0; |
329 | placements.lpfn = 0; | |
330 | placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT; | |
312ea8da | 331 | r = ttm_bo_mem_space(bo, &placement, &tmp_mem, |
97a875cb | 332 | interruptible, no_wait_gpu); |
771fe6b9 JG |
333 | if (unlikely(r)) { |
334 | return r; | |
335 | } | |
df67bed9 DA |
336 | |
337 | r = ttm_tt_set_placement_caching(bo->ttm, tmp_mem.placement); | |
338 | if (unlikely(r)) { | |
339 | goto out_cleanup; | |
340 | } | |
341 | ||
771fe6b9 JG |
342 | r = ttm_tt_bind(bo->ttm, &tmp_mem); |
343 | if (unlikely(r)) { | |
344 | goto out_cleanup; | |
345 | } | |
97a875cb | 346 | r = radeon_move_blit(bo, true, no_wait_gpu, &tmp_mem, old_mem); |
771fe6b9 JG |
347 | if (unlikely(r)) { |
348 | goto out_cleanup; | |
349 | } | |
4e2f0caa | 350 | r = ttm_bo_move_ttm(bo, interruptible, no_wait_gpu, new_mem); |
771fe6b9 | 351 | out_cleanup: |
42311ff9 | 352 | ttm_bo_mem_put(bo, &tmp_mem); |
771fe6b9 JG |
353 | return r; |
354 | } | |
355 | ||
356 | static int radeon_move_ram_vram(struct ttm_buffer_object *bo, | |
9d87fa21 | 357 | bool evict, bool interruptible, |
97a875cb | 358 | bool no_wait_gpu, |
771fe6b9 JG |
359 | struct ttm_mem_reg *new_mem) |
360 | { | |
361 | struct radeon_device *rdev; | |
362 | struct ttm_mem_reg *old_mem = &bo->mem; | |
363 | struct ttm_mem_reg tmp_mem; | |
312ea8da | 364 | struct ttm_placement placement; |
f1217ed0 | 365 | struct ttm_place placements; |
771fe6b9 JG |
366 | int r; |
367 | ||
368 | rdev = radeon_get_rdev(bo->bdev); | |
369 | tmp_mem = *new_mem; | |
370 | tmp_mem.mm_node = NULL; | |
312ea8da JG |
371 | placement.num_placement = 1; |
372 | placement.placement = &placements; | |
373 | placement.num_busy_placement = 1; | |
374 | placement.busy_placement = &placements; | |
f1217ed0 CK |
375 | placements.fpfn = 0; |
376 | placements.lpfn = 0; | |
377 | placements.flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT; | |
97a875cb ML |
378 | r = ttm_bo_mem_space(bo, &placement, &tmp_mem, |
379 | interruptible, no_wait_gpu); | |
771fe6b9 JG |
380 | if (unlikely(r)) { |
381 | return r; | |
382 | } | |
4e2f0caa | 383 | r = ttm_bo_move_ttm(bo, interruptible, no_wait_gpu, &tmp_mem); |
771fe6b9 JG |
384 | if (unlikely(r)) { |
385 | goto out_cleanup; | |
386 | } | |
97a875cb | 387 | r = radeon_move_blit(bo, true, no_wait_gpu, new_mem, old_mem); |
771fe6b9 JG |
388 | if (unlikely(r)) { |
389 | goto out_cleanup; | |
390 | } | |
391 | out_cleanup: | |
42311ff9 | 392 | ttm_bo_mem_put(bo, &tmp_mem); |
771fe6b9 JG |
393 | return r; |
394 | } | |
395 | ||
396 | static int radeon_bo_move(struct ttm_buffer_object *bo, | |
9d87fa21 | 397 | bool evict, bool interruptible, |
97a875cb | 398 | bool no_wait_gpu, |
9d87fa21 | 399 | struct ttm_mem_reg *new_mem) |
771fe6b9 JG |
400 | { |
401 | struct radeon_device *rdev; | |
e1a575ad | 402 | struct radeon_bo *rbo; |
771fe6b9 JG |
403 | struct ttm_mem_reg *old_mem = &bo->mem; |
404 | int r; | |
405 | ||
88932a7b CK |
406 | r = ttm_bo_wait(bo, interruptible, no_wait_gpu); |
407 | if (r) | |
408 | return r; | |
409 | ||
e1a575ad MD |
410 | /* Can't move a pinned BO */ |
411 | rbo = container_of(bo, struct radeon_bo, tbo); | |
412 | if (WARN_ON_ONCE(rbo->pin_count > 0)) | |
413 | return -EINVAL; | |
414 | ||
771fe6b9 JG |
415 | rdev = radeon_get_rdev(bo->bdev); |
416 | if (old_mem->mem_type == TTM_PL_SYSTEM && bo->ttm == NULL) { | |
417 | radeon_move_null(bo, new_mem); | |
418 | return 0; | |
419 | } | |
420 | if ((old_mem->mem_type == TTM_PL_TT && | |
421 | new_mem->mem_type == TTM_PL_SYSTEM) || | |
422 | (old_mem->mem_type == TTM_PL_SYSTEM && | |
423 | new_mem->mem_type == TTM_PL_TT)) { | |
af901ca1 | 424 | /* bind is enough */ |
771fe6b9 JG |
425 | radeon_move_null(bo, new_mem); |
426 | return 0; | |
427 | } | |
27cd7769 AD |
428 | if (!rdev->ring[radeon_copy_ring_index(rdev)].ready || |
429 | rdev->asic->copy.copy == NULL) { | |
771fe6b9 | 430 | /* use memcpy */ |
1ab2e105 | 431 | goto memcpy; |
771fe6b9 JG |
432 | } |
433 | ||
434 | if (old_mem->mem_type == TTM_PL_VRAM && | |
435 | new_mem->mem_type == TTM_PL_SYSTEM) { | |
1ab2e105 | 436 | r = radeon_move_vram_ram(bo, evict, interruptible, |
97a875cb | 437 | no_wait_gpu, new_mem); |
771fe6b9 JG |
438 | } else if (old_mem->mem_type == TTM_PL_SYSTEM && |
439 | new_mem->mem_type == TTM_PL_VRAM) { | |
1ab2e105 | 440 | r = radeon_move_ram_vram(bo, evict, interruptible, |
97a875cb | 441 | no_wait_gpu, new_mem); |
771fe6b9 | 442 | } else { |
97a875cb | 443 | r = radeon_move_blit(bo, evict, no_wait_gpu, new_mem, old_mem); |
771fe6b9 | 444 | } |
1ab2e105 MD |
445 | |
446 | if (r) { | |
447 | memcpy: | |
4499f2ac | 448 | r = ttm_bo_move_memcpy(bo, interruptible, no_wait_gpu, new_mem); |
67e8e3f9 MO |
449 | if (r) { |
450 | return r; | |
451 | } | |
1ab2e105 | 452 | } |
67e8e3f9 MO |
453 | |
454 | /* update statistics */ | |
455 | atomic64_add((u64)bo->num_pages << PAGE_SHIFT, &rdev->num_bytes_moved); | |
456 | return 0; | |
771fe6b9 JG |
457 | } |
458 | ||
0a2d50e3 JG |
459 | static int radeon_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) |
460 | { | |
461 | struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type]; | |
462 | struct radeon_device *rdev = radeon_get_rdev(bdev); | |
463 | ||
464 | mem->bus.addr = NULL; | |
465 | mem->bus.offset = 0; | |
466 | mem->bus.size = mem->num_pages << PAGE_SHIFT; | |
467 | mem->bus.base = 0; | |
468 | mem->bus.is_iomem = false; | |
469 | if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE)) | |
470 | return -EINVAL; | |
471 | switch (mem->mem_type) { | |
472 | case TTM_PL_SYSTEM: | |
473 | /* system memory */ | |
474 | return 0; | |
475 | case TTM_PL_TT: | |
a7fb8a23 | 476 | #if IS_ENABLED(CONFIG_AGP) |
0a2d50e3 JG |
477 | if (rdev->flags & RADEON_IS_AGP) { |
478 | /* RADEON_IS_AGP is set only if AGP is active */ | |
d961db75 | 479 | mem->bus.offset = mem->start << PAGE_SHIFT; |
0a2d50e3 | 480 | mem->bus.base = rdev->mc.agp_base; |
365048ff | 481 | mem->bus.is_iomem = !rdev->ddev->agp->cant_use_aperture; |
0a2d50e3 JG |
482 | } |
483 | #endif | |
484 | break; | |
485 | case TTM_PL_VRAM: | |
d961db75 | 486 | mem->bus.offset = mem->start << PAGE_SHIFT; |
0a2d50e3 JG |
487 | /* check if it's visible */ |
488 | if ((mem->bus.offset + mem->bus.size) > rdev->mc.visible_vram_size) | |
489 | return -EINVAL; | |
490 | mem->bus.base = rdev->mc.aper_base; | |
491 | mem->bus.is_iomem = true; | |
ffb57c4b JE |
492 | #ifdef __alpha__ |
493 | /* | |
494 | * Alpha: use bus.addr to hold the ioremap() return, | |
495 | * so we can modify bus.base below. | |
496 | */ | |
497 | if (mem->placement & TTM_PL_FLAG_WC) | |
498 | mem->bus.addr = | |
499 | ioremap_wc(mem->bus.base + mem->bus.offset, | |
500 | mem->bus.size); | |
501 | else | |
502 | mem->bus.addr = | |
503 | ioremap_nocache(mem->bus.base + mem->bus.offset, | |
504 | mem->bus.size); | |
3b2c6932 AY |
505 | if (!mem->bus.addr) |
506 | return -ENOMEM; | |
ffb57c4b JE |
507 | |
508 | /* | |
509 | * Alpha: Use just the bus offset plus | |
510 | * the hose/domain memory base for bus.base. | |
511 | * It then can be used to build PTEs for VRAM | |
512 | * access, as done in ttm_bo_vm_fault(). | |
513 | */ | |
514 | mem->bus.base = (mem->bus.base & 0x0ffffffffUL) + | |
515 | rdev->ddev->hose->dense_mem_base; | |
516 | #endif | |
0a2d50e3 JG |
517 | break; |
518 | default: | |
519 | return -EINVAL; | |
520 | } | |
521 | return 0; | |
522 | } | |
523 | ||
524 | static void radeon_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem) | |
525 | { | |
526 | } | |
527 | ||
649bf3ca JG |
528 | /* |
529 | * TTM backend functions. | |
530 | */ | |
531 | struct radeon_ttm_tt { | |
8e7e7052 | 532 | struct ttm_dma_tt ttm; |
649bf3ca JG |
533 | struct radeon_device *rdev; |
534 | u64 offset; | |
f72a113a CK |
535 | |
536 | uint64_t userptr; | |
537 | struct mm_struct *usermm; | |
538 | uint32_t userflags; | |
649bf3ca JG |
539 | }; |
540 | ||
f72a113a CK |
541 | /* prepare the sg table with the user pages */ |
542 | static int radeon_ttm_tt_pin_userptr(struct ttm_tt *ttm) | |
543 | { | |
544 | struct radeon_device *rdev = radeon_get_rdev(ttm->bdev); | |
545 | struct radeon_ttm_tt *gtt = (void *)ttm; | |
546 | unsigned pinned = 0, nents; | |
547 | int r; | |
548 | ||
549 | int write = !(gtt->userflags & RADEON_GEM_USERPTR_READONLY); | |
550 | enum dma_data_direction direction = write ? | |
551 | DMA_BIDIRECTIONAL : DMA_TO_DEVICE; | |
552 | ||
553 | if (current->mm != gtt->usermm) | |
554 | return -EPERM; | |
555 | ||
ddd00e33 CK |
556 | if (gtt->userflags & RADEON_GEM_USERPTR_ANONONLY) { |
557 | /* check that we only pin down anonymous memory | |
558 | to prevent problems with writeback */ | |
559 | unsigned long end = gtt->userptr + ttm->num_pages * PAGE_SIZE; | |
560 | struct vm_area_struct *vma; | |
561 | vma = find_vma(gtt->usermm, gtt->userptr); | |
562 | if (!vma || vma->vm_file || vma->vm_end < end) | |
563 | return -EPERM; | |
564 | } | |
565 | ||
f72a113a CK |
566 | do { |
567 | unsigned num_pages = ttm->num_pages - pinned; | |
568 | uint64_t userptr = gtt->userptr + pinned * PAGE_SIZE; | |
569 | struct page **pages = ttm->pages + pinned; | |
570 | ||
768ae309 LS |
571 | r = get_user_pages(userptr, num_pages, write ? FOLL_WRITE : 0, |
572 | pages, NULL); | |
f72a113a CK |
573 | if (r < 0) |
574 | goto release_pages; | |
575 | ||
576 | pinned += r; | |
577 | ||
578 | } while (pinned < ttm->num_pages); | |
579 | ||
580 | r = sg_alloc_table_from_pages(ttm->sg, ttm->pages, ttm->num_pages, 0, | |
581 | ttm->num_pages << PAGE_SHIFT, | |
582 | GFP_KERNEL); | |
583 | if (r) | |
584 | goto release_sg; | |
585 | ||
586 | r = -ENOMEM; | |
587 | nents = dma_map_sg(rdev->dev, ttm->sg->sgl, ttm->sg->nents, direction); | |
588 | if (nents != ttm->sg->nents) | |
589 | goto release_sg; | |
590 | ||
591 | drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages, | |
592 | gtt->ttm.dma_address, ttm->num_pages); | |
593 | ||
594 | return 0; | |
595 | ||
596 | release_sg: | |
597 | kfree(ttm->sg); | |
598 | ||
599 | release_pages: | |
600 | release_pages(ttm->pages, pinned, 0); | |
601 | return r; | |
602 | } | |
603 | ||
604 | static void radeon_ttm_tt_unpin_userptr(struct ttm_tt *ttm) | |
605 | { | |
606 | struct radeon_device *rdev = radeon_get_rdev(ttm->bdev); | |
607 | struct radeon_ttm_tt *gtt = (void *)ttm; | |
db12973c | 608 | struct sg_page_iter sg_iter; |
f72a113a CK |
609 | |
610 | int write = !(gtt->userflags & RADEON_GEM_USERPTR_READONLY); | |
611 | enum dma_data_direction direction = write ? | |
612 | DMA_BIDIRECTIONAL : DMA_TO_DEVICE; | |
613 | ||
863653fe CK |
614 | /* double check that we don't free the table twice */ |
615 | if (!ttm->sg->sgl) | |
616 | return; | |
617 | ||
f72a113a CK |
618 | /* free the sg table and pages again */ |
619 | dma_unmap_sg(rdev->dev, ttm->sg->sgl, ttm->sg->nents, direction); | |
620 | ||
db12973c | 621 | for_each_sg_page(ttm->sg->sgl, &sg_iter, ttm->sg->nents, 0) { |
622 | struct page *page = sg_page_iter_page(&sg_iter); | |
f72a113a CK |
623 | if (!(gtt->userflags & RADEON_GEM_USERPTR_READONLY)) |
624 | set_page_dirty(page); | |
625 | ||
626 | mark_page_accessed(page); | |
09cbfeaf | 627 | put_page(page); |
f72a113a CK |
628 | } |
629 | ||
630 | sg_free_table(ttm->sg); | |
631 | } | |
632 | ||
649bf3ca JG |
633 | static int radeon_ttm_backend_bind(struct ttm_tt *ttm, |
634 | struct ttm_mem_reg *bo_mem) | |
635 | { | |
8e7e7052 | 636 | struct radeon_ttm_tt *gtt = (void*)ttm; |
77497f27 MD |
637 | uint32_t flags = RADEON_GART_PAGE_VALID | RADEON_GART_PAGE_READ | |
638 | RADEON_GART_PAGE_WRITE; | |
649bf3ca JG |
639 | int r; |
640 | ||
f72a113a CK |
641 | if (gtt->userptr) { |
642 | radeon_ttm_tt_pin_userptr(ttm); | |
643 | flags &= ~RADEON_GART_PAGE_WRITE; | |
644 | } | |
645 | ||
649bf3ca JG |
646 | gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT); |
647 | if (!ttm->num_pages) { | |
648 | WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n", | |
649 | ttm->num_pages, bo_mem, ttm); | |
650 | } | |
77497f27 MD |
651 | if (ttm->caching_state == tt_cached) |
652 | flags |= RADEON_GART_PAGE_SNOOP; | |
653 | r = radeon_gart_bind(gtt->rdev, gtt->offset, ttm->num_pages, | |
654 | ttm->pages, gtt->ttm.dma_address, flags); | |
649bf3ca JG |
655 | if (r) { |
656 | DRM_ERROR("failed to bind %lu pages at 0x%08X\n", | |
657 | ttm->num_pages, (unsigned)gtt->offset); | |
658 | return r; | |
659 | } | |
660 | return 0; | |
661 | } | |
662 | ||
663 | static int radeon_ttm_backend_unbind(struct ttm_tt *ttm) | |
664 | { | |
8e7e7052 | 665 | struct radeon_ttm_tt *gtt = (void *)ttm; |
649bf3ca | 666 | |
649bf3ca | 667 | radeon_gart_unbind(gtt->rdev, gtt->offset, ttm->num_pages); |
f72a113a CK |
668 | |
669 | if (gtt->userptr) | |
670 | radeon_ttm_tt_unpin_userptr(ttm); | |
671 | ||
649bf3ca JG |
672 | return 0; |
673 | } | |
674 | ||
675 | static void radeon_ttm_backend_destroy(struct ttm_tt *ttm) | |
676 | { | |
8e7e7052 | 677 | struct radeon_ttm_tt *gtt = (void *)ttm; |
649bf3ca | 678 | |
8e7e7052 | 679 | ttm_dma_tt_fini(>t->ttm); |
649bf3ca JG |
680 | kfree(gtt); |
681 | } | |
682 | ||
683 | static struct ttm_backend_func radeon_backend_func = { | |
684 | .bind = &radeon_ttm_backend_bind, | |
685 | .unbind = &radeon_ttm_backend_unbind, | |
686 | .destroy = &radeon_ttm_backend_destroy, | |
687 | }; | |
688 | ||
1109ca09 | 689 | static struct ttm_tt *radeon_ttm_tt_create(struct ttm_bo_device *bdev, |
649bf3ca JG |
690 | unsigned long size, uint32_t page_flags, |
691 | struct page *dummy_read_page) | |
692 | { | |
693 | struct radeon_device *rdev; | |
694 | struct radeon_ttm_tt *gtt; | |
695 | ||
696 | rdev = radeon_get_rdev(bdev); | |
a7fb8a23 | 697 | #if IS_ENABLED(CONFIG_AGP) |
649bf3ca JG |
698 | if (rdev->flags & RADEON_IS_AGP) { |
699 | return ttm_agp_tt_create(bdev, rdev->ddev->agp->bridge, | |
700 | size, page_flags, dummy_read_page); | |
701 | } | |
702 | #endif | |
703 | ||
704 | gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL); | |
705 | if (gtt == NULL) { | |
706 | return NULL; | |
707 | } | |
8e7e7052 | 708 | gtt->ttm.ttm.func = &radeon_backend_func; |
649bf3ca | 709 | gtt->rdev = rdev; |
8e7e7052 JG |
710 | if (ttm_dma_tt_init(>t->ttm, bdev, size, page_flags, dummy_read_page)) { |
711 | kfree(gtt); | |
649bf3ca JG |
712 | return NULL; |
713 | } | |
8e7e7052 | 714 | return >t->ttm.ttm; |
649bf3ca JG |
715 | } |
716 | ||
3840a656 CK |
717 | static struct radeon_ttm_tt *radeon_ttm_tt_to_gtt(struct ttm_tt *ttm) |
718 | { | |
719 | if (!ttm || ttm->func != &radeon_backend_func) | |
720 | return NULL; | |
721 | return (struct radeon_ttm_tt *)ttm; | |
722 | } | |
723 | ||
c52494f6 KRW |
724 | static int radeon_ttm_tt_populate(struct ttm_tt *ttm) |
725 | { | |
3840a656 | 726 | struct radeon_ttm_tt *gtt = radeon_ttm_tt_to_gtt(ttm); |
c52494f6 KRW |
727 | struct radeon_device *rdev; |
728 | unsigned i; | |
729 | int r; | |
40f5cf99 | 730 | bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); |
c52494f6 KRW |
731 | |
732 | if (ttm->state != tt_unpopulated) | |
733 | return 0; | |
734 | ||
3840a656 | 735 | if (gtt && gtt->userptr) { |
69ee2410 | 736 | ttm->sg = kzalloc(sizeof(struct sg_table), GFP_KERNEL); |
f72a113a CK |
737 | if (!ttm->sg) |
738 | return -ENOMEM; | |
739 | ||
740 | ttm->page_flags |= TTM_PAGE_FLAG_SG; | |
741 | ttm->state = tt_unbound; | |
742 | return 0; | |
743 | } | |
744 | ||
40f5cf99 AD |
745 | if (slave && ttm->sg) { |
746 | drm_prime_sg_to_page_addr_arrays(ttm->sg, ttm->pages, | |
747 | gtt->ttm.dma_address, ttm->num_pages); | |
748 | ttm->state = tt_unbound; | |
749 | return 0; | |
750 | } | |
751 | ||
c52494f6 | 752 | rdev = radeon_get_rdev(ttm->bdev); |
a7fb8a23 | 753 | #if IS_ENABLED(CONFIG_AGP) |
dea7e0ac JG |
754 | if (rdev->flags & RADEON_IS_AGP) { |
755 | return ttm_agp_tt_populate(ttm); | |
756 | } | |
757 | #endif | |
c52494f6 KRW |
758 | |
759 | #ifdef CONFIG_SWIOTLB | |
760 | if (swiotlb_nr_tbl()) { | |
8e7e7052 | 761 | return ttm_dma_populate(>t->ttm, rdev->dev); |
c52494f6 KRW |
762 | } |
763 | #endif | |
764 | ||
765 | r = ttm_pool_populate(ttm); | |
766 | if (r) { | |
767 | return r; | |
768 | } | |
769 | ||
770 | for (i = 0; i < ttm->num_pages; i++) { | |
8e7e7052 JG |
771 | gtt->ttm.dma_address[i] = pci_map_page(rdev->pdev, ttm->pages[i], |
772 | 0, PAGE_SIZE, | |
773 | PCI_DMA_BIDIRECTIONAL); | |
774 | if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) { | |
bc3f5d8c | 775 | while (i--) { |
8e7e7052 | 776 | pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i], |
c52494f6 | 777 | PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
8e7e7052 | 778 | gtt->ttm.dma_address[i] = 0; |
c52494f6 KRW |
779 | } |
780 | ttm_pool_unpopulate(ttm); | |
781 | return -EFAULT; | |
782 | } | |
783 | } | |
784 | return 0; | |
785 | } | |
786 | ||
787 | static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm) | |
788 | { | |
789 | struct radeon_device *rdev; | |
3840a656 | 790 | struct radeon_ttm_tt *gtt = radeon_ttm_tt_to_gtt(ttm); |
c52494f6 | 791 | unsigned i; |
40f5cf99 AD |
792 | bool slave = !!(ttm->page_flags & TTM_PAGE_FLAG_SG); |
793 | ||
3840a656 | 794 | if (gtt && gtt->userptr) { |
f72a113a CK |
795 | kfree(ttm->sg); |
796 | ttm->page_flags &= ~TTM_PAGE_FLAG_SG; | |
797 | return; | |
798 | } | |
799 | ||
40f5cf99 AD |
800 | if (slave) |
801 | return; | |
c52494f6 KRW |
802 | |
803 | rdev = radeon_get_rdev(ttm->bdev); | |
a7fb8a23 | 804 | #if IS_ENABLED(CONFIG_AGP) |
dea7e0ac JG |
805 | if (rdev->flags & RADEON_IS_AGP) { |
806 | ttm_agp_tt_unpopulate(ttm); | |
807 | return; | |
808 | } | |
809 | #endif | |
c52494f6 KRW |
810 | |
811 | #ifdef CONFIG_SWIOTLB | |
812 | if (swiotlb_nr_tbl()) { | |
8e7e7052 | 813 | ttm_dma_unpopulate(>t->ttm, rdev->dev); |
c52494f6 KRW |
814 | return; |
815 | } | |
816 | #endif | |
817 | ||
818 | for (i = 0; i < ttm->num_pages; i++) { | |
8e7e7052 JG |
819 | if (gtt->ttm.dma_address[i]) { |
820 | pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i], | |
c52494f6 KRW |
821 | PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
822 | } | |
823 | } | |
824 | ||
825 | ttm_pool_unpopulate(ttm); | |
826 | } | |
649bf3ca | 827 | |
f72a113a CK |
828 | int radeon_ttm_tt_set_userptr(struct ttm_tt *ttm, uint64_t addr, |
829 | uint32_t flags) | |
830 | { | |
3840a656 | 831 | struct radeon_ttm_tt *gtt = radeon_ttm_tt_to_gtt(ttm); |
f72a113a CK |
832 | |
833 | if (gtt == NULL) | |
834 | return -EINVAL; | |
835 | ||
836 | gtt->userptr = addr; | |
837 | gtt->usermm = current->mm; | |
838 | gtt->userflags = flags; | |
839 | return 0; | |
840 | } | |
841 | ||
842 | bool radeon_ttm_tt_has_userptr(struct ttm_tt *ttm) | |
843 | { | |
3840a656 | 844 | struct radeon_ttm_tt *gtt = radeon_ttm_tt_to_gtt(ttm); |
f72a113a CK |
845 | |
846 | if (gtt == NULL) | |
847 | return false; | |
848 | ||
849 | return !!gtt->userptr; | |
850 | } | |
851 | ||
852 | bool radeon_ttm_tt_is_readonly(struct ttm_tt *ttm) | |
853 | { | |
3840a656 | 854 | struct radeon_ttm_tt *gtt = radeon_ttm_tt_to_gtt(ttm); |
f72a113a CK |
855 | |
856 | if (gtt == NULL) | |
857 | return false; | |
858 | ||
859 | return !!(gtt->userflags & RADEON_GEM_USERPTR_READONLY); | |
860 | } | |
861 | ||
771fe6b9 | 862 | static struct ttm_bo_driver radeon_bo_driver = { |
649bf3ca | 863 | .ttm_tt_create = &radeon_ttm_tt_create, |
c52494f6 KRW |
864 | .ttm_tt_populate = &radeon_ttm_tt_populate, |
865 | .ttm_tt_unpopulate = &radeon_ttm_tt_unpopulate, | |
771fe6b9 JG |
866 | .invalidate_caches = &radeon_invalidate_caches, |
867 | .init_mem_type = &radeon_init_mem_type, | |
a2ab19fe | 868 | .eviction_valuable = ttm_bo_eviction_valuable, |
771fe6b9 JG |
869 | .evict_flags = &radeon_evict_flags, |
870 | .move = &radeon_bo_move, | |
871 | .verify_access = &radeon_verify_access, | |
e024e110 DA |
872 | .move_notify = &radeon_bo_move_notify, |
873 | .fault_reserve_notify = &radeon_bo_fault_reserve_notify, | |
0a2d50e3 JG |
874 | .io_mem_reserve = &radeon_ttm_io_mem_reserve, |
875 | .io_mem_free = &radeon_ttm_io_mem_free, | |
771fe6b9 JG |
876 | }; |
877 | ||
878 | int radeon_ttm_init(struct radeon_device *rdev) | |
879 | { | |
880 | int r; | |
881 | ||
882 | r = radeon_ttm_global_init(rdev); | |
883 | if (r) { | |
884 | return r; | |
885 | } | |
886 | /* No others user of address space so set it to 0 */ | |
887 | r = ttm_bo_device_init(&rdev->mman.bdev, | |
a987fcaa | 888 | rdev->mman.bo_global_ref.ref.object, |
44d847b7 DH |
889 | &radeon_bo_driver, |
890 | rdev->ddev->anon_inode->i_mapping, | |
891 | DRM_FILE_PAGE_OFFSET, | |
ad49f501 | 892 | rdev->need_dma32); |
771fe6b9 JG |
893 | if (r) { |
894 | DRM_ERROR("failed initializing buffer object driver(%d).\n", r); | |
895 | return r; | |
896 | } | |
0a0c7596 | 897 | rdev->mman.initialized = true; |
4c788679 | 898 | r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_VRAM, |
312ea8da | 899 | rdev->mc.real_vram_size >> PAGE_SHIFT); |
771fe6b9 JG |
900 | if (r) { |
901 | DRM_ERROR("Failed initializing VRAM heap.\n"); | |
902 | return r; | |
903 | } | |
14eedc32 LK |
904 | /* Change the size here instead of the init above so only lpfn is affected */ |
905 | radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size); | |
906 | ||
441921d5 | 907 | r = radeon_bo_create(rdev, 256 * 1024, PAGE_SIZE, true, |
831b6966 | 908 | RADEON_GEM_DOMAIN_VRAM, 0, NULL, |
40f5cf99 | 909 | NULL, &rdev->stollen_vga_memory); |
771fe6b9 JG |
910 | if (r) { |
911 | return r; | |
912 | } | |
4c788679 JG |
913 | r = radeon_bo_reserve(rdev->stollen_vga_memory, false); |
914 | if (r) | |
915 | return r; | |
916 | r = radeon_bo_pin(rdev->stollen_vga_memory, RADEON_GEM_DOMAIN_VRAM, NULL); | |
917 | radeon_bo_unreserve(rdev->stollen_vga_memory); | |
771fe6b9 | 918 | if (r) { |
4c788679 | 919 | radeon_bo_unref(&rdev->stollen_vga_memory); |
771fe6b9 JG |
920 | return r; |
921 | } | |
922 | DRM_INFO("radeon: %uM of VRAM memory ready\n", | |
fc986034 | 923 | (unsigned) (rdev->mc.real_vram_size / (1024 * 1024))); |
4c788679 | 924 | r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT, |
312ea8da | 925 | rdev->mc.gtt_size >> PAGE_SHIFT); |
771fe6b9 JG |
926 | if (r) { |
927 | DRM_ERROR("Failed initializing GTT heap.\n"); | |
928 | return r; | |
929 | } | |
930 | DRM_INFO("radeon: %uM of GTT memory ready.\n", | |
3ce0a23d | 931 | (unsigned)(rdev->mc.gtt_size / (1024 * 1024))); |
fa8a1238 DA |
932 | |
933 | r = radeon_ttm_debugfs_init(rdev); | |
934 | if (r) { | |
935 | DRM_ERROR("Failed to init debugfs\n"); | |
936 | return r; | |
937 | } | |
771fe6b9 JG |
938 | return 0; |
939 | } | |
940 | ||
941 | void radeon_ttm_fini(struct radeon_device *rdev) | |
942 | { | |
4c788679 JG |
943 | int r; |
944 | ||
0a0c7596 JG |
945 | if (!rdev->mman.initialized) |
946 | return; | |
2014b569 | 947 | radeon_ttm_debugfs_fini(rdev); |
771fe6b9 | 948 | if (rdev->stollen_vga_memory) { |
4c788679 JG |
949 | r = radeon_bo_reserve(rdev->stollen_vga_memory, false); |
950 | if (r == 0) { | |
951 | radeon_bo_unpin(rdev->stollen_vga_memory); | |
952 | radeon_bo_unreserve(rdev->stollen_vga_memory); | |
953 | } | |
954 | radeon_bo_unref(&rdev->stollen_vga_memory); | |
771fe6b9 JG |
955 | } |
956 | ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_VRAM); | |
957 | ttm_bo_clean_mm(&rdev->mman.bdev, TTM_PL_TT); | |
958 | ttm_bo_device_release(&rdev->mman.bdev); | |
959 | radeon_gart_fini(rdev); | |
960 | radeon_ttm_global_fini(rdev); | |
0a0c7596 | 961 | rdev->mman.initialized = false; |
771fe6b9 JG |
962 | DRM_INFO("radeon: ttm finalized\n"); |
963 | } | |
964 | ||
53595338 DA |
965 | /* this should only be called at bootup or when userspace |
966 | * isn't running */ | |
967 | void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size) | |
968 | { | |
969 | struct ttm_mem_type_manager *man; | |
970 | ||
971 | if (!rdev->mman.initialized) | |
972 | return; | |
973 | ||
974 | man = &rdev->mman.bdev.man[TTM_PL_VRAM]; | |
975 | /* this just adjusts TTM size idea, which sets lpfn to the correct value */ | |
976 | man->size = size >> PAGE_SHIFT; | |
977 | } | |
978 | ||
771fe6b9 | 979 | static struct vm_operations_struct radeon_ttm_vm_ops; |
f0f37e2f | 980 | static const struct vm_operations_struct *ttm_vm_ops = NULL; |
771fe6b9 | 981 | |
11bac800 | 982 | static int radeon_ttm_fault(struct vm_fault *vmf) |
771fe6b9 JG |
983 | { |
984 | struct ttm_buffer_object *bo; | |
5876dd24 | 985 | struct radeon_device *rdev; |
771fe6b9 JG |
986 | int r; |
987 | ||
11bac800 | 988 | bo = (struct ttm_buffer_object *)vmf->vma->vm_private_data; |
771fe6b9 JG |
989 | if (bo == NULL) { |
990 | return VM_FAULT_NOPAGE; | |
991 | } | |
5876dd24 | 992 | rdev = radeon_get_rdev(bo->bdev); |
db7fce39 | 993 | down_read(&rdev->pm.mclk_lock); |
11bac800 | 994 | r = ttm_vm_ops->fault(vmf); |
db7fce39 | 995 | up_read(&rdev->pm.mclk_lock); |
771fe6b9 JG |
996 | return r; |
997 | } | |
998 | ||
999 | int radeon_mmap(struct file *filp, struct vm_area_struct *vma) | |
1000 | { | |
1001 | struct drm_file *file_priv; | |
1002 | struct radeon_device *rdev; | |
1003 | int r; | |
1004 | ||
1005 | if (unlikely(vma->vm_pgoff < DRM_FILE_PAGE_OFFSET)) { | |
884c6dab | 1006 | return -EINVAL; |
771fe6b9 JG |
1007 | } |
1008 | ||
40b3be3f | 1009 | file_priv = filp->private_data; |
771fe6b9 JG |
1010 | rdev = file_priv->minor->dev->dev_private; |
1011 | if (rdev == NULL) { | |
1012 | return -EINVAL; | |
1013 | } | |
1014 | r = ttm_bo_mmap(filp, vma, &rdev->mman.bdev); | |
1015 | if (unlikely(r != 0)) { | |
1016 | return r; | |
1017 | } | |
1018 | if (unlikely(ttm_vm_ops == NULL)) { | |
1019 | ttm_vm_ops = vma->vm_ops; | |
1020 | radeon_ttm_vm_ops = *ttm_vm_ops; | |
1021 | radeon_ttm_vm_ops.fault = &radeon_ttm_fault; | |
1022 | } | |
1023 | vma->vm_ops = &radeon_ttm_vm_ops; | |
1024 | return 0; | |
1025 | } | |
1026 | ||
fa8a1238 | 1027 | #if defined(CONFIG_DEBUG_FS) |
893d6e6e | 1028 | |
fa8a1238 DA |
1029 | static int radeon_mm_dump_table(struct seq_file *m, void *data) |
1030 | { | |
1031 | struct drm_info_node *node = (struct drm_info_node *)m->private; | |
893d6e6e | 1032 | unsigned ttm_pl = *(int *)node->info_ent->data; |
fa8a1238 DA |
1033 | struct drm_device *dev = node->minor->dev; |
1034 | struct radeon_device *rdev = dev->dev_private; | |
893d6e6e | 1035 | struct drm_mm *mm = (struct drm_mm *)rdev->mman.bdev.man[ttm_pl].priv; |
fa8a1238 | 1036 | struct ttm_bo_global *glob = rdev->mman.bdev.glob; |
b5c3714f | 1037 | struct drm_printer p = drm_seq_file_printer(m); |
fa8a1238 DA |
1038 | |
1039 | spin_lock(&glob->lru_lock); | |
b5c3714f | 1040 | drm_mm_print(mm, &p); |
fa8a1238 | 1041 | spin_unlock(&glob->lru_lock); |
b5c3714f | 1042 | return 0; |
fa8a1238 | 1043 | } |
893d6e6e CK |
1044 | |
1045 | static int ttm_pl_vram = TTM_PL_VRAM; | |
1046 | static int ttm_pl_tt = TTM_PL_TT; | |
1047 | ||
1048 | static struct drm_info_list radeon_ttm_debugfs_list[] = { | |
1049 | {"radeon_vram_mm", radeon_mm_dump_table, 0, &ttm_pl_vram}, | |
1050 | {"radeon_gtt_mm", radeon_mm_dump_table, 0, &ttm_pl_tt}, | |
1051 | {"ttm_page_pool", ttm_page_alloc_debugfs, 0, NULL}, | |
1052 | #ifdef CONFIG_SWIOTLB | |
1053 | {"ttm_dma_page_pool", ttm_dma_page_alloc_debugfs, 0, NULL} | |
1054 | #endif | |
1055 | }; | |
1056 | ||
2014b569 CK |
1057 | static int radeon_ttm_vram_open(struct inode *inode, struct file *filep) |
1058 | { | |
1059 | struct radeon_device *rdev = inode->i_private; | |
1060 | i_size_write(inode, rdev->mc.mc_vram_size); | |
1061 | filep->private_data = inode->i_private; | |
1062 | return 0; | |
1063 | } | |
1064 | ||
1065 | static ssize_t radeon_ttm_vram_read(struct file *f, char __user *buf, | |
1066 | size_t size, loff_t *pos) | |
1067 | { | |
1068 | struct radeon_device *rdev = f->private_data; | |
1069 | ssize_t result = 0; | |
1070 | int r; | |
1071 | ||
1072 | if (size & 0x3 || *pos & 0x3) | |
1073 | return -EINVAL; | |
1074 | ||
1075 | while (size) { | |
1076 | unsigned long flags; | |
1077 | uint32_t value; | |
1078 | ||
1079 | if (*pos >= rdev->mc.mc_vram_size) | |
1080 | return result; | |
1081 | ||
1082 | spin_lock_irqsave(&rdev->mmio_idx_lock, flags); | |
1083 | WREG32(RADEON_MM_INDEX, ((uint32_t)*pos) | 0x80000000); | |
1084 | if (rdev->family >= CHIP_CEDAR) | |
1085 | WREG32(EVERGREEN_MM_INDEX_HI, *pos >> 31); | |
1086 | value = RREG32(RADEON_MM_DATA); | |
1087 | spin_unlock_irqrestore(&rdev->mmio_idx_lock, flags); | |
1088 | ||
1089 | r = put_user(value, (uint32_t *)buf); | |
1090 | if (r) | |
1091 | return r; | |
1092 | ||
1093 | result += 4; | |
1094 | buf += 4; | |
1095 | *pos += 4; | |
1096 | size -= 4; | |
1097 | } | |
1098 | ||
1099 | return result; | |
1100 | } | |
1101 | ||
1102 | static const struct file_operations radeon_ttm_vram_fops = { | |
1103 | .owner = THIS_MODULE, | |
1104 | .open = radeon_ttm_vram_open, | |
1105 | .read = radeon_ttm_vram_read, | |
1106 | .llseek = default_llseek | |
1107 | }; | |
1108 | ||
dd66d20e CK |
1109 | static int radeon_ttm_gtt_open(struct inode *inode, struct file *filep) |
1110 | { | |
1111 | struct radeon_device *rdev = inode->i_private; | |
1112 | i_size_write(inode, rdev->mc.gtt_size); | |
1113 | filep->private_data = inode->i_private; | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | static ssize_t radeon_ttm_gtt_read(struct file *f, char __user *buf, | |
1118 | size_t size, loff_t *pos) | |
1119 | { | |
1120 | struct radeon_device *rdev = f->private_data; | |
1121 | ssize_t result = 0; | |
1122 | int r; | |
1123 | ||
1124 | while (size) { | |
1125 | loff_t p = *pos / PAGE_SIZE; | |
1126 | unsigned off = *pos & ~PAGE_MASK; | |
0d997b68 | 1127 | size_t cur_size = min_t(size_t, size, PAGE_SIZE - off); |
dd66d20e CK |
1128 | struct page *page; |
1129 | void *ptr; | |
1130 | ||
1131 | if (p >= rdev->gart.num_cpu_pages) | |
1132 | return result; | |
1133 | ||
1134 | page = rdev->gart.pages[p]; | |
1135 | if (page) { | |
1136 | ptr = kmap(page); | |
1137 | ptr += off; | |
1138 | ||
1139 | r = copy_to_user(buf, ptr, cur_size); | |
1140 | kunmap(rdev->gart.pages[p]); | |
1141 | } else | |
1142 | r = clear_user(buf, cur_size); | |
1143 | ||
1144 | if (r) | |
1145 | return -EFAULT; | |
1146 | ||
1147 | result += cur_size; | |
1148 | buf += cur_size; | |
1149 | *pos += cur_size; | |
1150 | size -= cur_size; | |
1151 | } | |
1152 | ||
1153 | return result; | |
1154 | } | |
1155 | ||
1156 | static const struct file_operations radeon_ttm_gtt_fops = { | |
1157 | .owner = THIS_MODULE, | |
1158 | .open = radeon_ttm_gtt_open, | |
1159 | .read = radeon_ttm_gtt_read, | |
1160 | .llseek = default_llseek | |
1161 | }; | |
1162 | ||
fa8a1238 DA |
1163 | #endif |
1164 | ||
1165 | static int radeon_ttm_debugfs_init(struct radeon_device *rdev) | |
1166 | { | |
f4e45d02 | 1167 | #if defined(CONFIG_DEBUG_FS) |
2014b569 CK |
1168 | unsigned count; |
1169 | ||
1170 | struct drm_minor *minor = rdev->ddev->primary; | |
1171 | struct dentry *ent, *root = minor->debugfs_root; | |
1172 | ||
1173 | ent = debugfs_create_file("radeon_vram", S_IFREG | S_IRUGO, root, | |
1174 | rdev, &radeon_ttm_vram_fops); | |
1175 | if (IS_ERR(ent)) | |
1176 | return PTR_ERR(ent); | |
1177 | rdev->mman.vram = ent; | |
1178 | ||
dd66d20e CK |
1179 | ent = debugfs_create_file("radeon_gtt", S_IFREG | S_IRUGO, root, |
1180 | rdev, &radeon_ttm_gtt_fops); | |
1181 | if (IS_ERR(ent)) | |
1182 | return PTR_ERR(ent); | |
1183 | rdev->mman.gtt = ent; | |
1184 | ||
2014b569 | 1185 | count = ARRAY_SIZE(radeon_ttm_debugfs_list); |
fa8a1238 | 1186 | |
c52494f6 | 1187 | #ifdef CONFIG_SWIOTLB |
893d6e6e CK |
1188 | if (!swiotlb_nr_tbl()) |
1189 | --count; | |
c52494f6 | 1190 | #endif |
fa8a1238 | 1191 | |
893d6e6e CK |
1192 | return radeon_debugfs_add_files(rdev, radeon_ttm_debugfs_list, count); |
1193 | #else | |
1194 | ||
fa8a1238 | 1195 | return 0; |
893d6e6e | 1196 | #endif |
fa8a1238 | 1197 | } |
2014b569 CK |
1198 | |
1199 | static void radeon_ttm_debugfs_fini(struct radeon_device *rdev) | |
1200 | { | |
1201 | #if defined(CONFIG_DEBUG_FS) | |
1202 | ||
1203 | debugfs_remove(rdev->mman.vram); | |
1204 | rdev->mman.vram = NULL; | |
dd66d20e CK |
1205 | |
1206 | debugfs_remove(rdev->mman.gtt); | |
1207 | rdev->mman.gtt = NULL; | |
2014b569 CK |
1208 | #endif |
1209 | } |