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fb1d9738 JB |
1 | /************************************************************************** |
2 | * | |
3 | * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation the rights to use, copy, modify, merge, publish, | |
10 | * distribute, sub license, and/or sell copies of the Software, and to | |
11 | * permit persons to whom the Software is furnished to do so, subject to | |
12 | * the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial portions | |
16 | * of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | **************************************************************************/ | |
27 | ||
28 | #include "vmwgfx_drv.h" | |
29 | #include "vmwgfx_reg.h" | |
760285e7 DH |
30 | #include <drm/ttm/ttm_bo_api.h> |
31 | #include <drm/ttm/ttm_placement.h> | |
fb1d9738 | 32 | |
c0951b79 TH |
33 | #define VMW_RES_HT_ORDER 12 |
34 | ||
35 | /** | |
36 | * struct vmw_resource_relocation - Relocation info for resources | |
37 | * | |
38 | * @head: List head for the software context's relocation list. | |
39 | * @res: Non-ref-counted pointer to the resource. | |
40 | * @offset: Offset of 4 byte entries into the command buffer where the | |
41 | * id that needs fixup is located. | |
42 | */ | |
43 | struct vmw_resource_relocation { | |
44 | struct list_head head; | |
45 | const struct vmw_resource *res; | |
46 | unsigned long offset; | |
47 | }; | |
48 | ||
49 | /** | |
50 | * struct vmw_resource_val_node - Validation info for resources | |
51 | * | |
52 | * @head: List head for the software context's resource list. | |
53 | * @hash: Hash entry for quick resouce to val_node lookup. | |
54 | * @res: Ref-counted pointer to the resource. | |
55 | * @switch_backup: Boolean whether to switch backup buffer on unreserve. | |
56 | * @new_backup: Refcounted pointer to the new backup buffer. | |
57 | * @new_backup_offset: New backup buffer offset if @new_backup is non-NUll. | |
58 | * @first_usage: Set to true the first time the resource is referenced in | |
59 | * the command stream. | |
60 | * @no_buffer_needed: Resources do not need to allocate buffer backup on | |
61 | * reservation. The command stream will provide one. | |
62 | */ | |
63 | struct vmw_resource_val_node { | |
64 | struct list_head head; | |
65 | struct drm_hash_item hash; | |
66 | struct vmw_resource *res; | |
67 | struct vmw_dma_buffer *new_backup; | |
68 | unsigned long new_backup_offset; | |
69 | bool first_usage; | |
70 | bool no_buffer_needed; | |
71 | }; | |
72 | ||
73 | /** | |
74 | * vmw_resource_unreserve - unreserve resources previously reserved for | |
75 | * command submission. | |
76 | * | |
77 | * @list_head: list of resources to unreserve. | |
78 | * @backoff: Whether command submission failed. | |
79 | */ | |
80 | static void vmw_resource_list_unreserve(struct list_head *list, | |
81 | bool backoff) | |
82 | { | |
83 | struct vmw_resource_val_node *val; | |
84 | ||
85 | list_for_each_entry(val, list, head) { | |
86 | struct vmw_resource *res = val->res; | |
87 | struct vmw_dma_buffer *new_backup = | |
88 | backoff ? NULL : val->new_backup; | |
89 | ||
90 | vmw_resource_unreserve(res, new_backup, | |
91 | val->new_backup_offset); | |
92 | vmw_dmabuf_unreference(&val->new_backup); | |
93 | } | |
94 | } | |
95 | ||
96 | ||
97 | /** | |
98 | * vmw_resource_val_add - Add a resource to the software context's | |
99 | * resource list if it's not already on it. | |
100 | * | |
101 | * @sw_context: Pointer to the software context. | |
102 | * @res: Pointer to the resource. | |
103 | * @p_node On successful return points to a valid pointer to a | |
104 | * struct vmw_resource_val_node, if non-NULL on entry. | |
105 | */ | |
106 | static int vmw_resource_val_add(struct vmw_sw_context *sw_context, | |
107 | struct vmw_resource *res, | |
108 | struct vmw_resource_val_node **p_node) | |
109 | { | |
110 | struct vmw_resource_val_node *node; | |
111 | struct drm_hash_item *hash; | |
112 | int ret; | |
113 | ||
114 | if (likely(drm_ht_find_item(&sw_context->res_ht, (unsigned long) res, | |
115 | &hash) == 0)) { | |
116 | node = container_of(hash, struct vmw_resource_val_node, hash); | |
117 | node->first_usage = false; | |
118 | if (unlikely(p_node != NULL)) | |
119 | *p_node = node; | |
120 | return 0; | |
121 | } | |
122 | ||
123 | node = kzalloc(sizeof(*node), GFP_KERNEL); | |
124 | if (unlikely(node == NULL)) { | |
125 | DRM_ERROR("Failed to allocate a resource validation " | |
126 | "entry.\n"); | |
127 | return -ENOMEM; | |
128 | } | |
129 | ||
130 | node->hash.key = (unsigned long) res; | |
131 | ret = drm_ht_insert_item(&sw_context->res_ht, &node->hash); | |
132 | if (unlikely(ret != 0)) { | |
133 | DRM_ERROR("Failed to initialize a resource validation " | |
134 | "entry.\n"); | |
135 | kfree(node); | |
136 | return ret; | |
137 | } | |
138 | list_add_tail(&node->head, &sw_context->resource_list); | |
139 | node->res = vmw_resource_reference(res); | |
140 | node->first_usage = true; | |
141 | ||
142 | if (unlikely(p_node != NULL)) | |
143 | *p_node = node; | |
144 | ||
145 | return 0; | |
146 | } | |
147 | ||
148 | /** | |
149 | * vmw_resource_relocation_add - Add a relocation to the relocation list | |
150 | * | |
151 | * @list: Pointer to head of relocation list. | |
152 | * @res: The resource. | |
153 | * @offset: Offset into the command buffer currently being parsed where the | |
154 | * id that needs fixup is located. Granularity is 4 bytes. | |
155 | */ | |
156 | static int vmw_resource_relocation_add(struct list_head *list, | |
157 | const struct vmw_resource *res, | |
158 | unsigned long offset) | |
159 | { | |
160 | struct vmw_resource_relocation *rel; | |
161 | ||
162 | rel = kmalloc(sizeof(*rel), GFP_KERNEL); | |
163 | if (unlikely(rel == NULL)) { | |
164 | DRM_ERROR("Failed to allocate a resource relocation.\n"); | |
165 | return -ENOMEM; | |
166 | } | |
167 | ||
168 | rel->res = res; | |
169 | rel->offset = offset; | |
170 | list_add_tail(&rel->head, list); | |
171 | ||
172 | return 0; | |
173 | } | |
174 | ||
175 | /** | |
176 | * vmw_resource_relocations_free - Free all relocations on a list | |
177 | * | |
178 | * @list: Pointer to the head of the relocation list. | |
179 | */ | |
180 | static void vmw_resource_relocations_free(struct list_head *list) | |
181 | { | |
182 | struct vmw_resource_relocation *rel, *n; | |
183 | ||
184 | list_for_each_entry_safe(rel, n, list, head) { | |
185 | list_del(&rel->head); | |
186 | kfree(rel); | |
187 | } | |
188 | } | |
189 | ||
190 | /** | |
191 | * vmw_resource_relocations_apply - Apply all relocations on a list | |
192 | * | |
193 | * @cb: Pointer to the start of the command buffer bein patch. This need | |
194 | * not be the same buffer as the one being parsed when the relocation | |
195 | * list was built, but the contents must be the same modulo the | |
196 | * resource ids. | |
197 | * @list: Pointer to the head of the relocation list. | |
198 | */ | |
199 | static void vmw_resource_relocations_apply(uint32_t *cb, | |
200 | struct list_head *list) | |
201 | { | |
202 | struct vmw_resource_relocation *rel; | |
203 | ||
204 | list_for_each_entry(rel, list, head) | |
205 | cb[rel->offset] = rel->res->id; | |
206 | } | |
207 | ||
fb1d9738 JB |
208 | static int vmw_cmd_invalid(struct vmw_private *dev_priv, |
209 | struct vmw_sw_context *sw_context, | |
210 | SVGA3dCmdHeader *header) | |
211 | { | |
212 | return capable(CAP_SYS_ADMIN) ? : -EINVAL; | |
213 | } | |
214 | ||
215 | static int vmw_cmd_ok(struct vmw_private *dev_priv, | |
216 | struct vmw_sw_context *sw_context, | |
217 | SVGA3dCmdHeader *header) | |
218 | { | |
219 | return 0; | |
220 | } | |
221 | ||
e2fa3a76 TH |
222 | /** |
223 | * vmw_bo_to_validate_list - add a bo to a validate list | |
224 | * | |
225 | * @sw_context: The software context used for this command submission batch. | |
226 | * @bo: The buffer object to add. | |
e2fa3a76 TH |
227 | * @p_val_node: If non-NULL Will be updated with the validate node number |
228 | * on return. | |
229 | * | |
230 | * Returns -EINVAL if the limit of number of buffer objects per command | |
231 | * submission is reached. | |
232 | */ | |
233 | static int vmw_bo_to_validate_list(struct vmw_sw_context *sw_context, | |
234 | struct ttm_buffer_object *bo, | |
e2fa3a76 TH |
235 | uint32_t *p_val_node) |
236 | { | |
237 | uint32_t val_node; | |
c0951b79 | 238 | struct vmw_validate_buffer *vval_buf; |
e2fa3a76 | 239 | struct ttm_validate_buffer *val_buf; |
c0951b79 TH |
240 | struct drm_hash_item *hash; |
241 | int ret; | |
e2fa3a76 | 242 | |
c0951b79 TH |
243 | if (likely(drm_ht_find_item(&sw_context->res_ht, (unsigned long) bo, |
244 | &hash) == 0)) { | |
245 | vval_buf = container_of(hash, struct vmw_validate_buffer, | |
246 | hash); | |
247 | val_buf = &vval_buf->base; | |
248 | val_node = vval_buf - sw_context->val_bufs; | |
249 | } else { | |
250 | val_node = sw_context->cur_val_buf; | |
251 | if (unlikely(val_node >= VMWGFX_MAX_VALIDATIONS)) { | |
252 | DRM_ERROR("Max number of DMA buffers per submission " | |
253 | "exceeded.\n"); | |
254 | return -EINVAL; | |
255 | } | |
256 | vval_buf = &sw_context->val_bufs[val_node]; | |
257 | vval_buf->hash.key = (unsigned long) bo; | |
258 | ret = drm_ht_insert_item(&sw_context->res_ht, &vval_buf->hash); | |
259 | if (unlikely(ret != 0)) { | |
260 | DRM_ERROR("Failed to initialize a buffer validation " | |
261 | "entry.\n"); | |
262 | return ret; | |
263 | } | |
264 | ++sw_context->cur_val_buf; | |
265 | val_buf = &vval_buf->base; | |
e2fa3a76 | 266 | val_buf->bo = ttm_bo_reference(bo); |
c0951b79 | 267 | val_buf->reserved = false; |
e2fa3a76 | 268 | list_add_tail(&val_buf->head, &sw_context->validate_nodes); |
e2fa3a76 TH |
269 | } |
270 | ||
be013367 | 271 | sw_context->fence_flags |= DRM_VMW_FENCE_FLAG_EXEC; |
e2fa3a76 TH |
272 | |
273 | if (p_val_node) | |
274 | *p_val_node = val_node; | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
c0951b79 TH |
279 | /** |
280 | * vmw_resources_reserve - Reserve all resources on the sw_context's | |
281 | * resource list. | |
282 | * | |
283 | * @sw_context: Pointer to the software context. | |
284 | * | |
285 | * Note that since vmware's command submission currently is protected by | |
286 | * the cmdbuf mutex, no fancy deadlock avoidance is required for resources, | |
287 | * since only a single thread at once will attempt this. | |
288 | */ | |
289 | static int vmw_resources_reserve(struct vmw_sw_context *sw_context) | |
fb1d9738 | 290 | { |
c0951b79 | 291 | struct vmw_resource_val_node *val; |
fb1d9738 JB |
292 | int ret; |
293 | ||
c0951b79 TH |
294 | list_for_each_entry(val, &sw_context->resource_list, head) { |
295 | struct vmw_resource *res = val->res; | |
fb1d9738 | 296 | |
c0951b79 TH |
297 | ret = vmw_resource_reserve(res, val->no_buffer_needed); |
298 | if (unlikely(ret != 0)) | |
299 | return ret; | |
300 | ||
301 | if (res->backup) { | |
302 | struct ttm_buffer_object *bo = &res->backup->base; | |
303 | ||
304 | ret = vmw_bo_to_validate_list | |
305 | (sw_context, bo, NULL); | |
306 | ||
307 | if (unlikely(ret != 0)) | |
308 | return ret; | |
309 | } | |
fb1d9738 | 310 | } |
c0951b79 TH |
311 | return 0; |
312 | } | |
fb1d9738 | 313 | |
c0951b79 TH |
314 | /** |
315 | * vmw_resources_validate - Validate all resources on the sw_context's | |
316 | * resource list. | |
317 | * | |
318 | * @sw_context: Pointer to the software context. | |
319 | * | |
320 | * Before this function is called, all resource backup buffers must have | |
321 | * been validated. | |
322 | */ | |
323 | static int vmw_resources_validate(struct vmw_sw_context *sw_context) | |
324 | { | |
325 | struct vmw_resource_val_node *val; | |
326 | int ret; | |
327 | ||
328 | list_for_each_entry(val, &sw_context->resource_list, head) { | |
329 | struct vmw_resource *res = val->res; | |
f18c8840 | 330 | |
c0951b79 TH |
331 | ret = vmw_resource_validate(res); |
332 | if (unlikely(ret != 0)) { | |
333 | if (ret != -ERESTARTSYS) | |
334 | DRM_ERROR("Failed to validate resource.\n"); | |
335 | return ret; | |
336 | } | |
337 | } | |
f18c8840 | 338 | return 0; |
fb1d9738 JB |
339 | } |
340 | ||
c0951b79 TH |
341 | /** |
342 | * vmw_cmd_res_check - Check that a resource is present and if so, put it | |
343 | * on the resource validate list unless it's already there. | |
344 | * | |
345 | * @dev_priv: Pointer to a device private structure. | |
346 | * @sw_context: Pointer to the software context. | |
347 | * @res_type: Resource type. | |
348 | * @converter: User-space visisble type specific information. | |
349 | * @id: Pointer to the location in the command buffer currently being | |
350 | * parsed from where the user-space resource id handle is located. | |
351 | */ | |
352 | static int vmw_cmd_res_check(struct vmw_private *dev_priv, | |
fb1d9738 | 353 | struct vmw_sw_context *sw_context, |
c0951b79 TH |
354 | enum vmw_res_type res_type, |
355 | const struct vmw_user_resource_conv *converter, | |
356 | uint32_t *id, | |
357 | struct vmw_resource_val_node **p_val) | |
fb1d9738 | 358 | { |
c0951b79 TH |
359 | struct vmw_res_cache_entry *rcache = |
360 | &sw_context->res_cache[res_type]; | |
be38ab6e | 361 | struct vmw_resource *res; |
c0951b79 TH |
362 | struct vmw_resource_val_node *node; |
363 | int ret; | |
be38ab6e | 364 | |
c0951b79 | 365 | if (*id == SVGA3D_INVALID_ID) |
7a73ba74 TH |
366 | return 0; |
367 | ||
c0951b79 TH |
368 | /* |
369 | * Fastpath in case of repeated commands referencing the same | |
370 | * resource | |
371 | */ | |
7a73ba74 | 372 | |
c0951b79 TH |
373 | if (likely(rcache->valid && *id == rcache->handle)) { |
374 | const struct vmw_resource *res = rcache->res; | |
375 | ||
376 | rcache->node->first_usage = false; | |
377 | if (p_val) | |
378 | *p_val = rcache->node; | |
379 | ||
380 | return vmw_resource_relocation_add | |
381 | (&sw_context->res_relocations, res, | |
382 | id - sw_context->buf_start); | |
be38ab6e TH |
383 | } |
384 | ||
c0951b79 TH |
385 | ret = vmw_user_resource_lookup_handle(dev_priv, |
386 | sw_context->tfile, | |
387 | *id, | |
388 | converter, | |
389 | &res); | |
5bb39e81 | 390 | if (unlikely(ret != 0)) { |
c0951b79 TH |
391 | DRM_ERROR("Could not find or use resource 0x%08x.\n", |
392 | (unsigned) *id); | |
393 | dump_stack(); | |
5bb39e81 TH |
394 | return ret; |
395 | } | |
396 | ||
c0951b79 TH |
397 | rcache->valid = true; |
398 | rcache->res = res; | |
399 | rcache->handle = *id; | |
be38ab6e | 400 | |
c0951b79 TH |
401 | ret = vmw_resource_relocation_add(&sw_context->res_relocations, |
402 | res, | |
403 | id - sw_context->buf_start); | |
404 | if (unlikely(ret != 0)) | |
405 | goto out_no_reloc; | |
406 | ||
407 | ret = vmw_resource_val_add(sw_context, res, &node); | |
408 | if (unlikely(ret != 0)) | |
409 | goto out_no_reloc; | |
f18c8840 | 410 | |
c0951b79 TH |
411 | rcache->node = node; |
412 | if (p_val) | |
413 | *p_val = node; | |
414 | vmw_resource_unreference(&res); | |
f18c8840 | 415 | return 0; |
c0951b79 TH |
416 | |
417 | out_no_reloc: | |
418 | BUG_ON(sw_context->error_resource != NULL); | |
419 | sw_context->error_resource = res; | |
420 | ||
421 | return ret; | |
fb1d9738 JB |
422 | } |
423 | ||
c0951b79 TH |
424 | /** |
425 | * vmw_cmd_cid_check - Check a command header for valid context information. | |
426 | * | |
427 | * @dev_priv: Pointer to a device private structure. | |
428 | * @sw_context: Pointer to the software context. | |
429 | * @header: A command header with an embedded user-space context handle. | |
430 | * | |
431 | * Convenience function: Call vmw_cmd_res_check with the user-space context | |
432 | * handle embedded in @header. | |
433 | */ | |
434 | static int vmw_cmd_cid_check(struct vmw_private *dev_priv, | |
435 | struct vmw_sw_context *sw_context, | |
436 | SVGA3dCmdHeader *header) | |
437 | { | |
438 | struct vmw_cid_cmd { | |
439 | SVGA3dCmdHeader header; | |
440 | __le32 cid; | |
441 | } *cmd; | |
442 | ||
443 | cmd = container_of(header, struct vmw_cid_cmd, header); | |
444 | return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context, | |
445 | user_context_converter, &cmd->cid, NULL); | |
446 | } | |
fb1d9738 JB |
447 | |
448 | static int vmw_cmd_set_render_target_check(struct vmw_private *dev_priv, | |
449 | struct vmw_sw_context *sw_context, | |
450 | SVGA3dCmdHeader *header) | |
451 | { | |
452 | struct vmw_sid_cmd { | |
453 | SVGA3dCmdHeader header; | |
454 | SVGA3dCmdSetRenderTarget body; | |
455 | } *cmd; | |
456 | int ret; | |
457 | ||
458 | ret = vmw_cmd_cid_check(dev_priv, sw_context, header); | |
459 | if (unlikely(ret != 0)) | |
460 | return ret; | |
461 | ||
462 | cmd = container_of(header, struct vmw_sid_cmd, header); | |
c0951b79 TH |
463 | ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
464 | user_surface_converter, | |
465 | &cmd->body.target.sid, NULL); | |
7a73ba74 | 466 | return ret; |
fb1d9738 JB |
467 | } |
468 | ||
469 | static int vmw_cmd_surface_copy_check(struct vmw_private *dev_priv, | |
470 | struct vmw_sw_context *sw_context, | |
471 | SVGA3dCmdHeader *header) | |
472 | { | |
473 | struct vmw_sid_cmd { | |
474 | SVGA3dCmdHeader header; | |
475 | SVGA3dCmdSurfaceCopy body; | |
476 | } *cmd; | |
477 | int ret; | |
478 | ||
479 | cmd = container_of(header, struct vmw_sid_cmd, header); | |
c0951b79 TH |
480 | ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
481 | user_surface_converter, | |
482 | &cmd->body.src.sid, NULL); | |
fb1d9738 JB |
483 | if (unlikely(ret != 0)) |
484 | return ret; | |
c0951b79 TH |
485 | return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
486 | user_surface_converter, | |
487 | &cmd->body.dest.sid, NULL); | |
fb1d9738 JB |
488 | } |
489 | ||
490 | static int vmw_cmd_stretch_blt_check(struct vmw_private *dev_priv, | |
491 | struct vmw_sw_context *sw_context, | |
492 | SVGA3dCmdHeader *header) | |
493 | { | |
494 | struct vmw_sid_cmd { | |
495 | SVGA3dCmdHeader header; | |
496 | SVGA3dCmdSurfaceStretchBlt body; | |
497 | } *cmd; | |
498 | int ret; | |
499 | ||
500 | cmd = container_of(header, struct vmw_sid_cmd, header); | |
c0951b79 TH |
501 | ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
502 | user_surface_converter, | |
503 | &cmd->body.src.sid, NULL); | |
fb1d9738 JB |
504 | if (unlikely(ret != 0)) |
505 | return ret; | |
c0951b79 TH |
506 | return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
507 | user_surface_converter, | |
508 | &cmd->body.dest.sid, NULL); | |
fb1d9738 JB |
509 | } |
510 | ||
511 | static int vmw_cmd_blt_surf_screen_check(struct vmw_private *dev_priv, | |
512 | struct vmw_sw_context *sw_context, | |
513 | SVGA3dCmdHeader *header) | |
514 | { | |
515 | struct vmw_sid_cmd { | |
516 | SVGA3dCmdHeader header; | |
517 | SVGA3dCmdBlitSurfaceToScreen body; | |
518 | } *cmd; | |
519 | ||
520 | cmd = container_of(header, struct vmw_sid_cmd, header); | |
0cff60c6 JB |
521 | |
522 | if (unlikely(!sw_context->kernel)) { | |
523 | DRM_ERROR("Kernel only SVGA3d command: %u.\n", cmd->header.id); | |
524 | return -EPERM; | |
525 | } | |
526 | ||
c0951b79 TH |
527 | return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
528 | user_surface_converter, | |
529 | &cmd->body.srcImage.sid, NULL); | |
fb1d9738 JB |
530 | } |
531 | ||
532 | static int vmw_cmd_present_check(struct vmw_private *dev_priv, | |
533 | struct vmw_sw_context *sw_context, | |
534 | SVGA3dCmdHeader *header) | |
535 | { | |
536 | struct vmw_sid_cmd { | |
537 | SVGA3dCmdHeader header; | |
538 | SVGA3dCmdPresent body; | |
539 | } *cmd; | |
540 | ||
5bb39e81 | 541 | |
fb1d9738 | 542 | cmd = container_of(header, struct vmw_sid_cmd, header); |
0cff60c6 JB |
543 | |
544 | if (unlikely(!sw_context->kernel)) { | |
545 | DRM_ERROR("Kernel only SVGA3d command: %u.\n", cmd->header.id); | |
546 | return -EPERM; | |
547 | } | |
548 | ||
c0951b79 TH |
549 | return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
550 | user_surface_converter, &cmd->body.sid, | |
551 | NULL); | |
fb1d9738 JB |
552 | } |
553 | ||
e2fa3a76 TH |
554 | /** |
555 | * vmw_query_bo_switch_prepare - Prepare to switch pinned buffer for queries. | |
556 | * | |
557 | * @dev_priv: The device private structure. | |
e2fa3a76 TH |
558 | * @new_query_bo: The new buffer holding query results. |
559 | * @sw_context: The software context used for this command submission. | |
560 | * | |
561 | * This function checks whether @new_query_bo is suitable for holding | |
562 | * query results, and if another buffer currently is pinned for query | |
563 | * results. If so, the function prepares the state of @sw_context for | |
564 | * switching pinned buffers after successful submission of the current | |
c0951b79 | 565 | * command batch. |
e2fa3a76 TH |
566 | */ |
567 | static int vmw_query_bo_switch_prepare(struct vmw_private *dev_priv, | |
e2fa3a76 TH |
568 | struct ttm_buffer_object *new_query_bo, |
569 | struct vmw_sw_context *sw_context) | |
570 | { | |
c0951b79 TH |
571 | struct vmw_res_cache_entry *ctx_entry = |
572 | &sw_context->res_cache[vmw_res_context]; | |
e2fa3a76 | 573 | int ret; |
c0951b79 TH |
574 | |
575 | BUG_ON(!ctx_entry->valid); | |
576 | sw_context->last_query_ctx = ctx_entry->res; | |
e2fa3a76 TH |
577 | |
578 | if (unlikely(new_query_bo != sw_context->cur_query_bo)) { | |
579 | ||
580 | if (unlikely(new_query_bo->num_pages > 4)) { | |
581 | DRM_ERROR("Query buffer too large.\n"); | |
582 | return -EINVAL; | |
583 | } | |
584 | ||
585 | if (unlikely(sw_context->cur_query_bo != NULL)) { | |
c0951b79 | 586 | sw_context->needs_post_query_barrier = true; |
e2fa3a76 TH |
587 | ret = vmw_bo_to_validate_list(sw_context, |
588 | sw_context->cur_query_bo, | |
e2fa3a76 TH |
589 | NULL); |
590 | if (unlikely(ret != 0)) | |
591 | return ret; | |
592 | } | |
593 | sw_context->cur_query_bo = new_query_bo; | |
594 | ||
595 | ret = vmw_bo_to_validate_list(sw_context, | |
596 | dev_priv->dummy_query_bo, | |
e2fa3a76 TH |
597 | NULL); |
598 | if (unlikely(ret != 0)) | |
599 | return ret; | |
600 | ||
601 | } | |
602 | ||
e2fa3a76 TH |
603 | return 0; |
604 | } | |
605 | ||
606 | ||
607 | /** | |
608 | * vmw_query_bo_switch_commit - Finalize switching pinned query buffer | |
609 | * | |
610 | * @dev_priv: The device private structure. | |
611 | * @sw_context: The software context used for this command submission batch. | |
612 | * | |
613 | * This function will check if we're switching query buffers, and will then, | |
e2fa3a76 TH |
614 | * issue a dummy occlusion query wait used as a query barrier. When the fence |
615 | * object following that query wait has signaled, we are sure that all | |
c0951b79 | 616 | * preceding queries have finished, and the old query buffer can be unpinned. |
e2fa3a76 TH |
617 | * However, since both the new query buffer and the old one are fenced with |
618 | * that fence, we can do an asynchronus unpin now, and be sure that the | |
619 | * old query buffer won't be moved until the fence has signaled. | |
620 | * | |
621 | * As mentioned above, both the new - and old query buffers need to be fenced | |
622 | * using a sequence emitted *after* calling this function. | |
623 | */ | |
624 | static void vmw_query_bo_switch_commit(struct vmw_private *dev_priv, | |
625 | struct vmw_sw_context *sw_context) | |
626 | { | |
e2fa3a76 TH |
627 | /* |
628 | * The validate list should still hold references to all | |
629 | * contexts here. | |
630 | */ | |
631 | ||
c0951b79 TH |
632 | if (sw_context->needs_post_query_barrier) { |
633 | struct vmw_res_cache_entry *ctx_entry = | |
634 | &sw_context->res_cache[vmw_res_context]; | |
635 | struct vmw_resource *ctx; | |
636 | int ret; | |
e2fa3a76 | 637 | |
c0951b79 TH |
638 | BUG_ON(!ctx_entry->valid); |
639 | ctx = ctx_entry->res; | |
e2fa3a76 TH |
640 | |
641 | ret = vmw_fifo_emit_dummy_query(dev_priv, ctx->id); | |
642 | ||
643 | if (unlikely(ret != 0)) | |
644 | DRM_ERROR("Out of fifo space for dummy query.\n"); | |
645 | } | |
646 | ||
647 | if (dev_priv->pinned_bo != sw_context->cur_query_bo) { | |
648 | if (dev_priv->pinned_bo) { | |
649 | vmw_bo_pin(dev_priv->pinned_bo, false); | |
650 | ttm_bo_unref(&dev_priv->pinned_bo); | |
651 | } | |
652 | ||
c0951b79 TH |
653 | if (!sw_context->needs_post_query_barrier) { |
654 | vmw_bo_pin(sw_context->cur_query_bo, true); | |
e2fa3a76 | 655 | |
c0951b79 TH |
656 | /* |
657 | * We pin also the dummy_query_bo buffer so that we | |
658 | * don't need to validate it when emitting | |
659 | * dummy queries in context destroy paths. | |
660 | */ | |
e2fa3a76 | 661 | |
c0951b79 TH |
662 | vmw_bo_pin(dev_priv->dummy_query_bo, true); |
663 | dev_priv->dummy_query_bo_pinned = true; | |
e2fa3a76 | 664 | |
c0951b79 TH |
665 | BUG_ON(sw_context->last_query_ctx == NULL); |
666 | dev_priv->query_cid = sw_context->last_query_ctx->id; | |
667 | dev_priv->query_cid_valid = true; | |
668 | dev_priv->pinned_bo = | |
669 | ttm_bo_reference(sw_context->cur_query_bo); | |
670 | } | |
e2fa3a76 TH |
671 | } |
672 | } | |
673 | ||
674 | /** | |
c0951b79 TH |
675 | * vmw_translate_guest_pointer - Prepare to translate a user-space buffer |
676 | * handle to a valid SVGAGuestPtr | |
e2fa3a76 | 677 | * |
c0951b79 TH |
678 | * @dev_priv: Pointer to a device private structure. |
679 | * @sw_context: The software context used for this command batch validation. | |
680 | * @ptr: Pointer to the user-space handle to be translated. | |
681 | * @vmw_bo_p: Points to a location that, on successful return will carry | |
682 | * a reference-counted pointer to the DMA buffer identified by the | |
683 | * user-space handle in @id. | |
e2fa3a76 | 684 | * |
c0951b79 TH |
685 | * This function saves information needed to translate a user-space buffer |
686 | * handle to a valid SVGAGuestPtr. The translation does not take place | |
687 | * immediately, but during a call to vmw_apply_relocations(). | |
688 | * This function builds a relocation list and a list of buffers to validate. | |
689 | * The former needs to be freed using either vmw_apply_relocations() or | |
690 | * vmw_free_relocations(). The latter needs to be freed using | |
691 | * vmw_clear_validations. | |
e2fa3a76 | 692 | */ |
4e4ddd47 TH |
693 | static int vmw_translate_guest_ptr(struct vmw_private *dev_priv, |
694 | struct vmw_sw_context *sw_context, | |
695 | SVGAGuestPtr *ptr, | |
696 | struct vmw_dma_buffer **vmw_bo_p) | |
fb1d9738 | 697 | { |
fb1d9738 JB |
698 | struct vmw_dma_buffer *vmw_bo = NULL; |
699 | struct ttm_buffer_object *bo; | |
4e4ddd47 | 700 | uint32_t handle = ptr->gmrId; |
fb1d9738 | 701 | struct vmw_relocation *reloc; |
4e4ddd47 | 702 | int ret; |
fb1d9738 | 703 | |
fb1d9738 JB |
704 | ret = vmw_user_dmabuf_lookup(sw_context->tfile, handle, &vmw_bo); |
705 | if (unlikely(ret != 0)) { | |
706 | DRM_ERROR("Could not find or use GMR region.\n"); | |
707 | return -EINVAL; | |
708 | } | |
709 | bo = &vmw_bo->base; | |
710 | ||
711 | if (unlikely(sw_context->cur_reloc >= VMWGFX_MAX_RELOCATIONS)) { | |
4e4ddd47 | 712 | DRM_ERROR("Max number relocations per submission" |
fb1d9738 JB |
713 | " exceeded\n"); |
714 | ret = -EINVAL; | |
715 | goto out_no_reloc; | |
716 | } | |
717 | ||
718 | reloc = &sw_context->relocs[sw_context->cur_reloc++]; | |
4e4ddd47 | 719 | reloc->location = ptr; |
fb1d9738 | 720 | |
be013367 | 721 | ret = vmw_bo_to_validate_list(sw_context, bo, &reloc->index); |
e2fa3a76 | 722 | if (unlikely(ret != 0)) |
fb1d9738 | 723 | goto out_no_reloc; |
fb1d9738 | 724 | |
4e4ddd47 TH |
725 | *vmw_bo_p = vmw_bo; |
726 | return 0; | |
727 | ||
728 | out_no_reloc: | |
729 | vmw_dmabuf_unreference(&vmw_bo); | |
730 | vmw_bo_p = NULL; | |
731 | return ret; | |
732 | } | |
733 | ||
c0951b79 TH |
734 | /** |
735 | * vmw_cmd_begin_query - validate a SVGA_3D_CMD_BEGIN_QUERY command. | |
736 | * | |
737 | * @dev_priv: Pointer to a device private struct. | |
738 | * @sw_context: The software context used for this command submission. | |
739 | * @header: Pointer to the command header in the command stream. | |
740 | */ | |
741 | static int vmw_cmd_begin_query(struct vmw_private *dev_priv, | |
742 | struct vmw_sw_context *sw_context, | |
743 | SVGA3dCmdHeader *header) | |
744 | { | |
745 | struct vmw_begin_query_cmd { | |
746 | SVGA3dCmdHeader header; | |
747 | SVGA3dCmdBeginQuery q; | |
748 | } *cmd; | |
749 | ||
750 | cmd = container_of(header, struct vmw_begin_query_cmd, | |
751 | header); | |
752 | ||
753 | return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_context, | |
754 | user_context_converter, &cmd->q.cid, | |
755 | NULL); | |
756 | } | |
757 | ||
758 | /** | |
759 | * vmw_cmd_end_query - validate a SVGA_3D_CMD_END_QUERY command. | |
760 | * | |
761 | * @dev_priv: Pointer to a device private struct. | |
762 | * @sw_context: The software context used for this command submission. | |
763 | * @header: Pointer to the command header in the command stream. | |
764 | */ | |
4e4ddd47 TH |
765 | static int vmw_cmd_end_query(struct vmw_private *dev_priv, |
766 | struct vmw_sw_context *sw_context, | |
767 | SVGA3dCmdHeader *header) | |
768 | { | |
769 | struct vmw_dma_buffer *vmw_bo; | |
770 | struct vmw_query_cmd { | |
771 | SVGA3dCmdHeader header; | |
772 | SVGA3dCmdEndQuery q; | |
773 | } *cmd; | |
774 | int ret; | |
775 | ||
776 | cmd = container_of(header, struct vmw_query_cmd, header); | |
777 | ret = vmw_cmd_cid_check(dev_priv, sw_context, header); | |
778 | if (unlikely(ret != 0)) | |
779 | return ret; | |
780 | ||
781 | ret = vmw_translate_guest_ptr(dev_priv, sw_context, | |
782 | &cmd->q.guestResult, | |
783 | &vmw_bo); | |
784 | if (unlikely(ret != 0)) | |
785 | return ret; | |
786 | ||
c0951b79 | 787 | ret = vmw_query_bo_switch_prepare(dev_priv, &vmw_bo->base, sw_context); |
e2fa3a76 | 788 | |
4e4ddd47 | 789 | vmw_dmabuf_unreference(&vmw_bo); |
e2fa3a76 | 790 | return ret; |
4e4ddd47 | 791 | } |
fb1d9738 | 792 | |
c0951b79 TH |
793 | /* |
794 | * vmw_cmd_wait_query - validate a SVGA_3D_CMD_WAIT_QUERY command. | |
795 | * | |
796 | * @dev_priv: Pointer to a device private struct. | |
797 | * @sw_context: The software context used for this command submission. | |
798 | * @header: Pointer to the command header in the command stream. | |
799 | */ | |
4e4ddd47 TH |
800 | static int vmw_cmd_wait_query(struct vmw_private *dev_priv, |
801 | struct vmw_sw_context *sw_context, | |
802 | SVGA3dCmdHeader *header) | |
803 | { | |
804 | struct vmw_dma_buffer *vmw_bo; | |
805 | struct vmw_query_cmd { | |
806 | SVGA3dCmdHeader header; | |
807 | SVGA3dCmdWaitForQuery q; | |
808 | } *cmd; | |
809 | int ret; | |
810 | ||
811 | cmd = container_of(header, struct vmw_query_cmd, header); | |
812 | ret = vmw_cmd_cid_check(dev_priv, sw_context, header); | |
813 | if (unlikely(ret != 0)) | |
814 | return ret; | |
815 | ||
816 | ret = vmw_translate_guest_ptr(dev_priv, sw_context, | |
817 | &cmd->q.guestResult, | |
818 | &vmw_bo); | |
819 | if (unlikely(ret != 0)) | |
820 | return ret; | |
821 | ||
822 | vmw_dmabuf_unreference(&vmw_bo); | |
823 | return 0; | |
824 | } | |
825 | ||
4e4ddd47 TH |
826 | static int vmw_cmd_dma(struct vmw_private *dev_priv, |
827 | struct vmw_sw_context *sw_context, | |
828 | SVGA3dCmdHeader *header) | |
829 | { | |
830 | struct vmw_dma_buffer *vmw_bo = NULL; | |
4e4ddd47 TH |
831 | struct vmw_surface *srf = NULL; |
832 | struct vmw_dma_cmd { | |
833 | SVGA3dCmdHeader header; | |
834 | SVGA3dCmdSurfaceDMA dma; | |
835 | } *cmd; | |
836 | int ret; | |
837 | ||
838 | cmd = container_of(header, struct vmw_dma_cmd, header); | |
839 | ret = vmw_translate_guest_ptr(dev_priv, sw_context, | |
840 | &cmd->dma.guest.ptr, | |
841 | &vmw_bo); | |
842 | if (unlikely(ret != 0)) | |
843 | return ret; | |
844 | ||
c0951b79 TH |
845 | ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
846 | user_surface_converter, &cmd->dma.host.sid, | |
847 | NULL); | |
5bb39e81 | 848 | if (unlikely(ret != 0)) { |
c0951b79 TH |
849 | if (unlikely(ret != -ERESTARTSYS)) |
850 | DRM_ERROR("could not find surface for DMA.\n"); | |
851 | goto out_no_surface; | |
5bb39e81 TH |
852 | } |
853 | ||
c0951b79 | 854 | srf = vmw_res_to_srf(sw_context->res_cache[vmw_res_surface].res); |
f18c8840 | 855 | |
c0951b79 | 856 | vmw_kms_cursor_snoop(srf, sw_context->tfile, &vmw_bo->base, header); |
fb1d9738 | 857 | |
c0951b79 | 858 | out_no_surface: |
fb1d9738 JB |
859 | vmw_dmabuf_unreference(&vmw_bo); |
860 | return ret; | |
861 | } | |
862 | ||
7a73ba74 TH |
863 | static int vmw_cmd_draw(struct vmw_private *dev_priv, |
864 | struct vmw_sw_context *sw_context, | |
865 | SVGA3dCmdHeader *header) | |
866 | { | |
867 | struct vmw_draw_cmd { | |
868 | SVGA3dCmdHeader header; | |
869 | SVGA3dCmdDrawPrimitives body; | |
870 | } *cmd; | |
871 | SVGA3dVertexDecl *decl = (SVGA3dVertexDecl *)( | |
872 | (unsigned long)header + sizeof(*cmd)); | |
873 | SVGA3dPrimitiveRange *range; | |
874 | uint32_t i; | |
875 | uint32_t maxnum; | |
876 | int ret; | |
877 | ||
878 | ret = vmw_cmd_cid_check(dev_priv, sw_context, header); | |
879 | if (unlikely(ret != 0)) | |
880 | return ret; | |
881 | ||
882 | cmd = container_of(header, struct vmw_draw_cmd, header); | |
883 | maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl); | |
884 | ||
885 | if (unlikely(cmd->body.numVertexDecls > maxnum)) { | |
886 | DRM_ERROR("Illegal number of vertex declarations.\n"); | |
887 | return -EINVAL; | |
888 | } | |
889 | ||
890 | for (i = 0; i < cmd->body.numVertexDecls; ++i, ++decl) { | |
c0951b79 TH |
891 | ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
892 | user_surface_converter, | |
893 | &decl->array.surfaceId, NULL); | |
7a73ba74 TH |
894 | if (unlikely(ret != 0)) |
895 | return ret; | |
896 | } | |
897 | ||
898 | maxnum = (header->size - sizeof(cmd->body) - | |
899 | cmd->body.numVertexDecls * sizeof(*decl)) / sizeof(*range); | |
900 | if (unlikely(cmd->body.numRanges > maxnum)) { | |
901 | DRM_ERROR("Illegal number of index ranges.\n"); | |
902 | return -EINVAL; | |
903 | } | |
904 | ||
905 | range = (SVGA3dPrimitiveRange *) decl; | |
906 | for (i = 0; i < cmd->body.numRanges; ++i, ++range) { | |
c0951b79 TH |
907 | ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
908 | user_surface_converter, | |
909 | &range->indexArray.surfaceId, NULL); | |
7a73ba74 TH |
910 | if (unlikely(ret != 0)) |
911 | return ret; | |
912 | } | |
913 | return 0; | |
914 | } | |
915 | ||
916 | ||
917 | static int vmw_cmd_tex_state(struct vmw_private *dev_priv, | |
918 | struct vmw_sw_context *sw_context, | |
919 | SVGA3dCmdHeader *header) | |
920 | { | |
921 | struct vmw_tex_state_cmd { | |
922 | SVGA3dCmdHeader header; | |
923 | SVGA3dCmdSetTextureState state; | |
924 | }; | |
925 | ||
926 | SVGA3dTextureState *last_state = (SVGA3dTextureState *) | |
927 | ((unsigned long) header + header->size + sizeof(header)); | |
928 | SVGA3dTextureState *cur_state = (SVGA3dTextureState *) | |
929 | ((unsigned long) header + sizeof(struct vmw_tex_state_cmd)); | |
930 | int ret; | |
931 | ||
932 | ret = vmw_cmd_cid_check(dev_priv, sw_context, header); | |
933 | if (unlikely(ret != 0)) | |
934 | return ret; | |
935 | ||
936 | for (; cur_state < last_state; ++cur_state) { | |
937 | if (likely(cur_state->name != SVGA3D_TS_BIND_TEXTURE)) | |
938 | continue; | |
939 | ||
c0951b79 TH |
940 | ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, |
941 | user_surface_converter, | |
942 | &cur_state->value, NULL); | |
7a73ba74 TH |
943 | if (unlikely(ret != 0)) |
944 | return ret; | |
945 | } | |
946 | ||
947 | return 0; | |
948 | } | |
949 | ||
4084fb89 JB |
950 | static int vmw_cmd_check_define_gmrfb(struct vmw_private *dev_priv, |
951 | struct vmw_sw_context *sw_context, | |
952 | void *buf) | |
953 | { | |
954 | struct vmw_dma_buffer *vmw_bo; | |
955 | int ret; | |
956 | ||
957 | struct { | |
958 | uint32_t header; | |
959 | SVGAFifoCmdDefineGMRFB body; | |
960 | } *cmd = buf; | |
961 | ||
962 | ret = vmw_translate_guest_ptr(dev_priv, sw_context, | |
963 | &cmd->body.ptr, | |
964 | &vmw_bo); | |
965 | if (unlikely(ret != 0)) | |
966 | return ret; | |
967 | ||
968 | vmw_dmabuf_unreference(&vmw_bo); | |
969 | ||
970 | return ret; | |
971 | } | |
972 | ||
c0951b79 TH |
973 | /** |
974 | * vmw_cmd_set_shader - Validate an SVGA_3D_CMD_SET_SHADER | |
975 | * command | |
976 | * | |
977 | * @dev_priv: Pointer to a device private struct. | |
978 | * @sw_context: The software context being used for this batch. | |
979 | * @header: Pointer to the command header in the command stream. | |
980 | */ | |
981 | static int vmw_cmd_set_shader(struct vmw_private *dev_priv, | |
982 | struct vmw_sw_context *sw_context, | |
983 | SVGA3dCmdHeader *header) | |
984 | { | |
985 | struct vmw_set_shader_cmd { | |
986 | SVGA3dCmdHeader header; | |
987 | SVGA3dCmdSetShader body; | |
988 | } *cmd; | |
989 | int ret; | |
990 | ||
991 | cmd = container_of(header, struct vmw_set_shader_cmd, | |
992 | header); | |
993 | ||
994 | ret = vmw_cmd_cid_check(dev_priv, sw_context, header); | |
995 | if (unlikely(ret != 0)) | |
996 | return ret; | |
997 | ||
998 | return 0; | |
999 | } | |
1000 | ||
4084fb89 JB |
1001 | static int vmw_cmd_check_not_3d(struct vmw_private *dev_priv, |
1002 | struct vmw_sw_context *sw_context, | |
1003 | void *buf, uint32_t *size) | |
1004 | { | |
1005 | uint32_t size_remaining = *size; | |
4084fb89 JB |
1006 | uint32_t cmd_id; |
1007 | ||
1008 | cmd_id = le32_to_cpu(((uint32_t *)buf)[0]); | |
1009 | switch (cmd_id) { | |
1010 | case SVGA_CMD_UPDATE: | |
1011 | *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdUpdate); | |
4084fb89 JB |
1012 | break; |
1013 | case SVGA_CMD_DEFINE_GMRFB: | |
1014 | *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdDefineGMRFB); | |
1015 | break; | |
1016 | case SVGA_CMD_BLIT_GMRFB_TO_SCREEN: | |
1017 | *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen); | |
1018 | break; | |
1019 | case SVGA_CMD_BLIT_SCREEN_TO_GMRFB: | |
1020 | *size = sizeof(uint32_t) + sizeof(SVGAFifoCmdBlitGMRFBToScreen); | |
1021 | break; | |
1022 | default: | |
1023 | DRM_ERROR("Unsupported SVGA command: %u.\n", cmd_id); | |
1024 | return -EINVAL; | |
1025 | } | |
1026 | ||
1027 | if (*size > size_remaining) { | |
1028 | DRM_ERROR("Invalid SVGA command (size mismatch):" | |
1029 | " %u.\n", cmd_id); | |
1030 | return -EINVAL; | |
1031 | } | |
1032 | ||
0cff60c6 | 1033 | if (unlikely(!sw_context->kernel)) { |
4084fb89 JB |
1034 | DRM_ERROR("Kernel only SVGA command: %u.\n", cmd_id); |
1035 | return -EPERM; | |
1036 | } | |
1037 | ||
1038 | if (cmd_id == SVGA_CMD_DEFINE_GMRFB) | |
1039 | return vmw_cmd_check_define_gmrfb(dev_priv, sw_context, buf); | |
1040 | ||
1041 | return 0; | |
1042 | } | |
fb1d9738 JB |
1043 | |
1044 | typedef int (*vmw_cmd_func) (struct vmw_private *, | |
1045 | struct vmw_sw_context *, | |
1046 | SVGA3dCmdHeader *); | |
1047 | ||
1048 | #define VMW_CMD_DEF(cmd, func) \ | |
1049 | [cmd - SVGA_3D_CMD_BASE] = func | |
1050 | ||
1051 | static vmw_cmd_func vmw_cmd_funcs[SVGA_3D_CMD_MAX] = { | |
1052 | VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE, &vmw_cmd_invalid), | |
1053 | VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DESTROY, &vmw_cmd_invalid), | |
1054 | VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_COPY, &vmw_cmd_surface_copy_check), | |
1055 | VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_STRETCHBLT, &vmw_cmd_stretch_blt_check), | |
1056 | VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DMA, &vmw_cmd_dma), | |
1057 | VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DEFINE, &vmw_cmd_invalid), | |
1058 | VMW_CMD_DEF(SVGA_3D_CMD_CONTEXT_DESTROY, &vmw_cmd_invalid), | |
1059 | VMW_CMD_DEF(SVGA_3D_CMD_SETTRANSFORM, &vmw_cmd_cid_check), | |
1060 | VMW_CMD_DEF(SVGA_3D_CMD_SETZRANGE, &vmw_cmd_cid_check), | |
1061 | VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERSTATE, &vmw_cmd_cid_check), | |
1062 | VMW_CMD_DEF(SVGA_3D_CMD_SETRENDERTARGET, | |
1063 | &vmw_cmd_set_render_target_check), | |
7a73ba74 | 1064 | VMW_CMD_DEF(SVGA_3D_CMD_SETTEXTURESTATE, &vmw_cmd_tex_state), |
fb1d9738 JB |
1065 | VMW_CMD_DEF(SVGA_3D_CMD_SETMATERIAL, &vmw_cmd_cid_check), |
1066 | VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTDATA, &vmw_cmd_cid_check), | |
1067 | VMW_CMD_DEF(SVGA_3D_CMD_SETLIGHTENABLED, &vmw_cmd_cid_check), | |
1068 | VMW_CMD_DEF(SVGA_3D_CMD_SETVIEWPORT, &vmw_cmd_cid_check), | |
1069 | VMW_CMD_DEF(SVGA_3D_CMD_SETCLIPPLANE, &vmw_cmd_cid_check), | |
1070 | VMW_CMD_DEF(SVGA_3D_CMD_CLEAR, &vmw_cmd_cid_check), | |
1071 | VMW_CMD_DEF(SVGA_3D_CMD_PRESENT, &vmw_cmd_present_check), | |
1072 | VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DEFINE, &vmw_cmd_cid_check), | |
1073 | VMW_CMD_DEF(SVGA_3D_CMD_SHADER_DESTROY, &vmw_cmd_cid_check), | |
c0951b79 | 1074 | VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER, &vmw_cmd_set_shader), |
fb1d9738 | 1075 | VMW_CMD_DEF(SVGA_3D_CMD_SET_SHADER_CONST, &vmw_cmd_cid_check), |
7a73ba74 | 1076 | VMW_CMD_DEF(SVGA_3D_CMD_DRAW_PRIMITIVES, &vmw_cmd_draw), |
fb1d9738 | 1077 | VMW_CMD_DEF(SVGA_3D_CMD_SETSCISSORRECT, &vmw_cmd_cid_check), |
c0951b79 | 1078 | VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_QUERY, &vmw_cmd_begin_query), |
4e4ddd47 TH |
1079 | VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_end_query), |
1080 | VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_wait_query), | |
fb1d9738 JB |
1081 | VMW_CMD_DEF(SVGA_3D_CMD_PRESENT_READBACK, &vmw_cmd_ok), |
1082 | VMW_CMD_DEF(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN, | |
c0951b79 TH |
1083 | &vmw_cmd_blt_surf_screen_check), |
1084 | VMW_CMD_DEF(SVGA_3D_CMD_SURFACE_DEFINE_V2, &vmw_cmd_invalid), | |
1085 | VMW_CMD_DEF(SVGA_3D_CMD_GENERATE_MIPMAPS, &vmw_cmd_invalid), | |
1086 | VMW_CMD_DEF(SVGA_3D_CMD_ACTIVATE_SURFACE, &vmw_cmd_invalid), | |
1087 | VMW_CMD_DEF(SVGA_3D_CMD_DEACTIVATE_SURFACE, &vmw_cmd_invalid), | |
fb1d9738 JB |
1088 | }; |
1089 | ||
1090 | static int vmw_cmd_check(struct vmw_private *dev_priv, | |
1091 | struct vmw_sw_context *sw_context, | |
1092 | void *buf, uint32_t *size) | |
1093 | { | |
1094 | uint32_t cmd_id; | |
7a73ba74 | 1095 | uint32_t size_remaining = *size; |
fb1d9738 JB |
1096 | SVGA3dCmdHeader *header = (SVGA3dCmdHeader *) buf; |
1097 | int ret; | |
1098 | ||
4084fb89 JB |
1099 | cmd_id = le32_to_cpu(((uint32_t *)buf)[0]); |
1100 | /* Handle any none 3D commands */ | |
1101 | if (unlikely(cmd_id < SVGA_CMD_MAX)) | |
1102 | return vmw_cmd_check_not_3d(dev_priv, sw_context, buf, size); | |
1103 | ||
fb1d9738 JB |
1104 | |
1105 | cmd_id = le32_to_cpu(header->id); | |
1106 | *size = le32_to_cpu(header->size) + sizeof(SVGA3dCmdHeader); | |
1107 | ||
1108 | cmd_id -= SVGA_3D_CMD_BASE; | |
7a73ba74 TH |
1109 | if (unlikely(*size > size_remaining)) |
1110 | goto out_err; | |
1111 | ||
fb1d9738 JB |
1112 | if (unlikely(cmd_id >= SVGA_3D_CMD_MAX - SVGA_3D_CMD_BASE)) |
1113 | goto out_err; | |
1114 | ||
1115 | ret = vmw_cmd_funcs[cmd_id](dev_priv, sw_context, header); | |
1116 | if (unlikely(ret != 0)) | |
1117 | goto out_err; | |
1118 | ||
1119 | return 0; | |
1120 | out_err: | |
1121 | DRM_ERROR("Illegal / Invalid SVGA3D command: %d\n", | |
1122 | cmd_id + SVGA_3D_CMD_BASE); | |
1123 | return -EINVAL; | |
1124 | } | |
1125 | ||
1126 | static int vmw_cmd_check_all(struct vmw_private *dev_priv, | |
1127 | struct vmw_sw_context *sw_context, | |
922ade0d | 1128 | void *buf, |
be38ab6e | 1129 | uint32_t size) |
fb1d9738 JB |
1130 | { |
1131 | int32_t cur_size = size; | |
1132 | int ret; | |
1133 | ||
c0951b79 TH |
1134 | sw_context->buf_start = buf; |
1135 | ||
fb1d9738 | 1136 | while (cur_size > 0) { |
7a73ba74 | 1137 | size = cur_size; |
fb1d9738 JB |
1138 | ret = vmw_cmd_check(dev_priv, sw_context, buf, &size); |
1139 | if (unlikely(ret != 0)) | |
1140 | return ret; | |
1141 | buf = (void *)((unsigned long) buf + size); | |
1142 | cur_size -= size; | |
1143 | } | |
1144 | ||
1145 | if (unlikely(cur_size != 0)) { | |
1146 | DRM_ERROR("Command verifier out of sync.\n"); | |
1147 | return -EINVAL; | |
1148 | } | |
1149 | ||
1150 | return 0; | |
1151 | } | |
1152 | ||
1153 | static void vmw_free_relocations(struct vmw_sw_context *sw_context) | |
1154 | { | |
1155 | sw_context->cur_reloc = 0; | |
1156 | } | |
1157 | ||
1158 | static void vmw_apply_relocations(struct vmw_sw_context *sw_context) | |
1159 | { | |
1160 | uint32_t i; | |
1161 | struct vmw_relocation *reloc; | |
1162 | struct ttm_validate_buffer *validate; | |
1163 | struct ttm_buffer_object *bo; | |
1164 | ||
1165 | for (i = 0; i < sw_context->cur_reloc; ++i) { | |
1166 | reloc = &sw_context->relocs[i]; | |
c0951b79 | 1167 | validate = &sw_context->val_bufs[reloc->index].base; |
fb1d9738 | 1168 | bo = validate->bo; |
c0951b79 TH |
1169 | switch (bo->mem.mem_type) { |
1170 | case TTM_PL_VRAM: | |
135cba0d TH |
1171 | reloc->location->offset += bo->offset; |
1172 | reloc->location->gmrId = SVGA_GMR_FRAMEBUFFER; | |
c0951b79 TH |
1173 | break; |
1174 | case VMW_PL_GMR: | |
135cba0d | 1175 | reloc->location->gmrId = bo->mem.start; |
c0951b79 TH |
1176 | break; |
1177 | default: | |
1178 | BUG(); | |
1179 | } | |
fb1d9738 JB |
1180 | } |
1181 | vmw_free_relocations(sw_context); | |
1182 | } | |
1183 | ||
c0951b79 TH |
1184 | /** |
1185 | * vmw_resource_list_unrefererence - Free up a resource list and unreference | |
1186 | * all resources referenced by it. | |
1187 | * | |
1188 | * @list: The resource list. | |
1189 | */ | |
1190 | static void vmw_resource_list_unreference(struct list_head *list) | |
1191 | { | |
1192 | struct vmw_resource_val_node *val, *val_next; | |
1193 | ||
1194 | /* | |
1195 | * Drop references to resources held during command submission. | |
1196 | */ | |
1197 | ||
1198 | list_for_each_entry_safe(val, val_next, list, head) { | |
1199 | list_del_init(&val->head); | |
1200 | vmw_resource_unreference(&val->res); | |
1201 | kfree(val); | |
1202 | } | |
1203 | } | |
1204 | ||
fb1d9738 JB |
1205 | static void vmw_clear_validations(struct vmw_sw_context *sw_context) |
1206 | { | |
c0951b79 TH |
1207 | struct vmw_validate_buffer *entry, *next; |
1208 | struct vmw_resource_val_node *val; | |
fb1d9738 | 1209 | |
be38ab6e TH |
1210 | /* |
1211 | * Drop references to DMA buffers held during command submission. | |
1212 | */ | |
fb1d9738 | 1213 | list_for_each_entry_safe(entry, next, &sw_context->validate_nodes, |
c0951b79 TH |
1214 | base.head) { |
1215 | list_del(&entry->base.head); | |
1216 | ttm_bo_unref(&entry->base.bo); | |
1217 | (void) drm_ht_remove_item(&sw_context->res_ht, &entry->hash); | |
fb1d9738 JB |
1218 | sw_context->cur_val_buf--; |
1219 | } | |
1220 | BUG_ON(sw_context->cur_val_buf != 0); | |
be38ab6e | 1221 | |
c0951b79 TH |
1222 | list_for_each_entry(val, &sw_context->resource_list, head) |
1223 | (void) drm_ht_remove_item(&sw_context->res_ht, &val->hash); | |
fb1d9738 JB |
1224 | } |
1225 | ||
1226 | static int vmw_validate_single_buffer(struct vmw_private *dev_priv, | |
1227 | struct ttm_buffer_object *bo) | |
1228 | { | |
1229 | int ret; | |
1230 | ||
e2fa3a76 TH |
1231 | |
1232 | /* | |
1233 | * Don't validate pinned buffers. | |
1234 | */ | |
1235 | ||
1236 | if (bo == dev_priv->pinned_bo || | |
1237 | (bo == dev_priv->dummy_query_bo && | |
1238 | dev_priv->dummy_query_bo_pinned)) | |
1239 | return 0; | |
1240 | ||
8ba5152a | 1241 | /** |
135cba0d TH |
1242 | * Put BO in VRAM if there is space, otherwise as a GMR. |
1243 | * If there is no space in VRAM and GMR ids are all used up, | |
1244 | * start evicting GMRs to make room. If the DMA buffer can't be | |
1245 | * used as a GMR, this will return -ENOMEM. | |
8ba5152a TH |
1246 | */ |
1247 | ||
97a875cb | 1248 | ret = ttm_bo_validate(bo, &vmw_vram_gmr_placement, true, false); |
3d3a5b32 | 1249 | if (likely(ret == 0 || ret == -ERESTARTSYS)) |
fb1d9738 JB |
1250 | return ret; |
1251 | ||
8ba5152a TH |
1252 | /** |
1253 | * If that failed, try VRAM again, this time evicting | |
1254 | * previous contents. | |
1255 | */ | |
fb1d9738 | 1256 | |
135cba0d | 1257 | DRM_INFO("Falling through to VRAM.\n"); |
97a875cb | 1258 | ret = ttm_bo_validate(bo, &vmw_vram_placement, true, false); |
fb1d9738 JB |
1259 | return ret; |
1260 | } | |
1261 | ||
1262 | ||
1263 | static int vmw_validate_buffers(struct vmw_private *dev_priv, | |
1264 | struct vmw_sw_context *sw_context) | |
1265 | { | |
c0951b79 | 1266 | struct vmw_validate_buffer *entry; |
fb1d9738 JB |
1267 | int ret; |
1268 | ||
c0951b79 TH |
1269 | list_for_each_entry(entry, &sw_context->validate_nodes, base.head) { |
1270 | ret = vmw_validate_single_buffer(dev_priv, entry->base.bo); | |
fb1d9738 JB |
1271 | if (unlikely(ret != 0)) |
1272 | return ret; | |
1273 | } | |
1274 | return 0; | |
1275 | } | |
1276 | ||
be38ab6e TH |
1277 | static int vmw_resize_cmd_bounce(struct vmw_sw_context *sw_context, |
1278 | uint32_t size) | |
1279 | { | |
1280 | if (likely(sw_context->cmd_bounce_size >= size)) | |
1281 | return 0; | |
1282 | ||
1283 | if (sw_context->cmd_bounce_size == 0) | |
1284 | sw_context->cmd_bounce_size = VMWGFX_CMD_BOUNCE_INIT_SIZE; | |
1285 | ||
1286 | while (sw_context->cmd_bounce_size < size) { | |
1287 | sw_context->cmd_bounce_size = | |
1288 | PAGE_ALIGN(sw_context->cmd_bounce_size + | |
1289 | (sw_context->cmd_bounce_size >> 1)); | |
1290 | } | |
1291 | ||
1292 | if (sw_context->cmd_bounce != NULL) | |
1293 | vfree(sw_context->cmd_bounce); | |
1294 | ||
1295 | sw_context->cmd_bounce = vmalloc(sw_context->cmd_bounce_size); | |
1296 | ||
1297 | if (sw_context->cmd_bounce == NULL) { | |
1298 | DRM_ERROR("Failed to allocate command bounce buffer.\n"); | |
1299 | sw_context->cmd_bounce_size = 0; | |
1300 | return -ENOMEM; | |
1301 | } | |
1302 | ||
1303 | return 0; | |
1304 | } | |
1305 | ||
ae2a1040 TH |
1306 | /** |
1307 | * vmw_execbuf_fence_commands - create and submit a command stream fence | |
1308 | * | |
1309 | * Creates a fence object and submits a command stream marker. | |
1310 | * If this fails for some reason, We sync the fifo and return NULL. | |
1311 | * It is then safe to fence buffers with a NULL pointer. | |
6070e9fa JB |
1312 | * |
1313 | * If @p_handle is not NULL @file_priv must also not be NULL. Creates | |
1314 | * a userspace handle if @p_handle is not NULL, otherwise not. | |
ae2a1040 TH |
1315 | */ |
1316 | ||
1317 | int vmw_execbuf_fence_commands(struct drm_file *file_priv, | |
1318 | struct vmw_private *dev_priv, | |
1319 | struct vmw_fence_obj **p_fence, | |
1320 | uint32_t *p_handle) | |
1321 | { | |
1322 | uint32_t sequence; | |
1323 | int ret; | |
1324 | bool synced = false; | |
1325 | ||
6070e9fa JB |
1326 | /* p_handle implies file_priv. */ |
1327 | BUG_ON(p_handle != NULL && file_priv == NULL); | |
ae2a1040 TH |
1328 | |
1329 | ret = vmw_fifo_send_fence(dev_priv, &sequence); | |
1330 | if (unlikely(ret != 0)) { | |
1331 | DRM_ERROR("Fence submission error. Syncing.\n"); | |
1332 | synced = true; | |
1333 | } | |
1334 | ||
1335 | if (p_handle != NULL) | |
1336 | ret = vmw_user_fence_create(file_priv, dev_priv->fman, | |
1337 | sequence, | |
1338 | DRM_VMW_FENCE_FLAG_EXEC, | |
1339 | p_fence, p_handle); | |
1340 | else | |
1341 | ret = vmw_fence_create(dev_priv->fman, sequence, | |
1342 | DRM_VMW_FENCE_FLAG_EXEC, | |
1343 | p_fence); | |
1344 | ||
1345 | if (unlikely(ret != 0 && !synced)) { | |
1346 | (void) vmw_fallback_wait(dev_priv, false, false, | |
1347 | sequence, false, | |
1348 | VMW_FENCE_WAIT_TIMEOUT); | |
1349 | *p_fence = NULL; | |
1350 | } | |
1351 | ||
1352 | return 0; | |
1353 | } | |
1354 | ||
8bf445ce TH |
1355 | /** |
1356 | * vmw_execbuf_copy_fence_user - copy fence object information to | |
1357 | * user-space. | |
1358 | * | |
1359 | * @dev_priv: Pointer to a vmw_private struct. | |
1360 | * @vmw_fp: Pointer to the struct vmw_fpriv representing the calling file. | |
1361 | * @ret: Return value from fence object creation. | |
1362 | * @user_fence_rep: User space address of a struct drm_vmw_fence_rep to | |
1363 | * which the information should be copied. | |
1364 | * @fence: Pointer to the fenc object. | |
1365 | * @fence_handle: User-space fence handle. | |
1366 | * | |
1367 | * This function copies fence information to user-space. If copying fails, | |
1368 | * The user-space struct drm_vmw_fence_rep::error member is hopefully | |
1369 | * left untouched, and if it's preloaded with an -EFAULT by user-space, | |
1370 | * the error will hopefully be detected. | |
1371 | * Also if copying fails, user-space will be unable to signal the fence | |
1372 | * object so we wait for it immediately, and then unreference the | |
1373 | * user-space reference. | |
1374 | */ | |
57c5ee79 | 1375 | void |
8bf445ce TH |
1376 | vmw_execbuf_copy_fence_user(struct vmw_private *dev_priv, |
1377 | struct vmw_fpriv *vmw_fp, | |
1378 | int ret, | |
1379 | struct drm_vmw_fence_rep __user *user_fence_rep, | |
1380 | struct vmw_fence_obj *fence, | |
1381 | uint32_t fence_handle) | |
1382 | { | |
1383 | struct drm_vmw_fence_rep fence_rep; | |
1384 | ||
1385 | if (user_fence_rep == NULL) | |
1386 | return; | |
1387 | ||
80d9b24a DC |
1388 | memset(&fence_rep, 0, sizeof(fence_rep)); |
1389 | ||
8bf445ce TH |
1390 | fence_rep.error = ret; |
1391 | if (ret == 0) { | |
1392 | BUG_ON(fence == NULL); | |
1393 | ||
1394 | fence_rep.handle = fence_handle; | |
1395 | fence_rep.seqno = fence->seqno; | |
1396 | vmw_update_seqno(dev_priv, &dev_priv->fifo); | |
1397 | fence_rep.passed_seqno = dev_priv->last_read_seqno; | |
1398 | } | |
1399 | ||
1400 | /* | |
1401 | * copy_to_user errors will be detected by user space not | |
1402 | * seeing fence_rep::error filled in. Typically | |
1403 | * user-space would have pre-set that member to -EFAULT. | |
1404 | */ | |
1405 | ret = copy_to_user(user_fence_rep, &fence_rep, | |
1406 | sizeof(fence_rep)); | |
1407 | ||
1408 | /* | |
1409 | * User-space lost the fence object. We need to sync | |
1410 | * and unreference the handle. | |
1411 | */ | |
1412 | if (unlikely(ret != 0) && (fence_rep.error == 0)) { | |
1413 | ttm_ref_object_base_unref(vmw_fp->tfile, | |
1414 | fence_handle, TTM_REF_USAGE); | |
1415 | DRM_ERROR("Fence copy error. Syncing.\n"); | |
1416 | (void) vmw_fence_obj_wait(fence, fence->signal_mask, | |
1417 | false, false, | |
1418 | VMW_FENCE_WAIT_TIMEOUT); | |
1419 | } | |
1420 | } | |
1421 | ||
922ade0d TH |
1422 | int vmw_execbuf_process(struct drm_file *file_priv, |
1423 | struct vmw_private *dev_priv, | |
1424 | void __user *user_commands, | |
1425 | void *kernel_commands, | |
1426 | uint32_t command_size, | |
1427 | uint64_t throttle_us, | |
bb1bd2f4 JB |
1428 | struct drm_vmw_fence_rep __user *user_fence_rep, |
1429 | struct vmw_fence_obj **out_fence) | |
fb1d9738 | 1430 | { |
fb1d9738 | 1431 | struct vmw_sw_context *sw_context = &dev_priv->ctx; |
bb1bd2f4 | 1432 | struct vmw_fence_obj *fence = NULL; |
c0951b79 TH |
1433 | struct vmw_resource *error_resource; |
1434 | struct list_head resource_list; | |
ae2a1040 | 1435 | uint32_t handle; |
922ade0d TH |
1436 | void *cmd; |
1437 | int ret; | |
fb1d9738 | 1438 | |
922ade0d | 1439 | ret = mutex_lock_interruptible(&dev_priv->cmdbuf_mutex); |
fb1d9738 | 1440 | if (unlikely(ret != 0)) |
922ade0d | 1441 | return -ERESTARTSYS; |
fb1d9738 | 1442 | |
922ade0d TH |
1443 | if (kernel_commands == NULL) { |
1444 | sw_context->kernel = false; | |
fb1d9738 | 1445 | |
922ade0d TH |
1446 | ret = vmw_resize_cmd_bounce(sw_context, command_size); |
1447 | if (unlikely(ret != 0)) | |
1448 | goto out_unlock; | |
fb1d9738 | 1449 | |
fb1d9738 | 1450 | |
922ade0d TH |
1451 | ret = copy_from_user(sw_context->cmd_bounce, |
1452 | user_commands, command_size); | |
1453 | ||
1454 | if (unlikely(ret != 0)) { | |
1455 | ret = -EFAULT; | |
1456 | DRM_ERROR("Failed copying commands.\n"); | |
1457 | goto out_unlock; | |
1458 | } | |
1459 | kernel_commands = sw_context->cmd_bounce; | |
1460 | } else | |
1461 | sw_context->kernel = true; | |
fb1d9738 JB |
1462 | |
1463 | sw_context->tfile = vmw_fpriv(file_priv)->tfile; | |
fb1d9738 JB |
1464 | sw_context->cur_reloc = 0; |
1465 | sw_context->cur_val_buf = 0; | |
e2fa3a76 | 1466 | sw_context->fence_flags = 0; |
f18c8840 | 1467 | INIT_LIST_HEAD(&sw_context->resource_list); |
e2fa3a76 | 1468 | sw_context->cur_query_bo = dev_priv->pinned_bo; |
c0951b79 TH |
1469 | sw_context->last_query_ctx = NULL; |
1470 | sw_context->needs_post_query_barrier = false; | |
1471 | memset(sw_context->res_cache, 0, sizeof(sw_context->res_cache)); | |
fb1d9738 | 1472 | INIT_LIST_HEAD(&sw_context->validate_nodes); |
c0951b79 TH |
1473 | INIT_LIST_HEAD(&sw_context->res_relocations); |
1474 | if (!sw_context->res_ht_initialized) { | |
1475 | ret = drm_ht_create(&sw_context->res_ht, VMW_RES_HT_ORDER); | |
1476 | if (unlikely(ret != 0)) | |
1477 | goto out_unlock; | |
1478 | sw_context->res_ht_initialized = true; | |
1479 | } | |
fb1d9738 | 1480 | |
c0951b79 | 1481 | INIT_LIST_HEAD(&resource_list); |
922ade0d TH |
1482 | ret = vmw_cmd_check_all(dev_priv, sw_context, kernel_commands, |
1483 | command_size); | |
fb1d9738 JB |
1484 | if (unlikely(ret != 0)) |
1485 | goto out_err; | |
be38ab6e | 1486 | |
c0951b79 TH |
1487 | ret = vmw_resources_reserve(sw_context); |
1488 | if (unlikely(ret != 0)) | |
1489 | goto out_err; | |
1490 | ||
65705962 | 1491 | ret = ttm_eu_reserve_buffers(&sw_context->validate_nodes); |
fb1d9738 JB |
1492 | if (unlikely(ret != 0)) |
1493 | goto out_err; | |
1494 | ||
1495 | ret = vmw_validate_buffers(dev_priv, sw_context); | |
1496 | if (unlikely(ret != 0)) | |
1497 | goto out_err; | |
1498 | ||
c0951b79 TH |
1499 | ret = vmw_resources_validate(sw_context); |
1500 | if (unlikely(ret != 0)) | |
1501 | goto out_err; | |
1925d456 | 1502 | |
922ade0d | 1503 | if (throttle_us) { |
6bcd8d3c | 1504 | ret = vmw_wait_lag(dev_priv, &dev_priv->fifo.marker_queue, |
922ade0d | 1505 | throttle_us); |
1925d456 TH |
1506 | |
1507 | if (unlikely(ret != 0)) | |
c0951b79 | 1508 | goto out_err; |
be38ab6e TH |
1509 | } |
1510 | ||
922ade0d | 1511 | cmd = vmw_fifo_reserve(dev_priv, command_size); |
be38ab6e TH |
1512 | if (unlikely(cmd == NULL)) { |
1513 | DRM_ERROR("Failed reserving fifo space for commands.\n"); | |
1514 | ret = -ENOMEM; | |
c0951b79 | 1515 | goto out_err; |
1925d456 TH |
1516 | } |
1517 | ||
c0951b79 | 1518 | vmw_apply_relocations(sw_context); |
922ade0d | 1519 | memcpy(cmd, kernel_commands, command_size); |
c0951b79 TH |
1520 | |
1521 | vmw_resource_relocations_apply(cmd, &sw_context->res_relocations); | |
1522 | vmw_resource_relocations_free(&sw_context->res_relocations); | |
1523 | ||
922ade0d | 1524 | vmw_fifo_commit(dev_priv, command_size); |
fb1d9738 | 1525 | |
e2fa3a76 | 1526 | vmw_query_bo_switch_commit(dev_priv, sw_context); |
ae2a1040 TH |
1527 | ret = vmw_execbuf_fence_commands(file_priv, dev_priv, |
1528 | &fence, | |
1529 | (user_fence_rep) ? &handle : NULL); | |
fb1d9738 JB |
1530 | /* |
1531 | * This error is harmless, because if fence submission fails, | |
ae2a1040 TH |
1532 | * vmw_fifo_send_fence will sync. The error will be propagated to |
1533 | * user-space in @fence_rep | |
fb1d9738 JB |
1534 | */ |
1535 | ||
1536 | if (ret != 0) | |
1537 | DRM_ERROR("Fence submission error. Syncing.\n"); | |
1538 | ||
c0951b79 | 1539 | vmw_resource_list_unreserve(&sw_context->resource_list, false); |
ae2a1040 TH |
1540 | ttm_eu_fence_buffer_objects(&sw_context->validate_nodes, |
1541 | (void *) fence); | |
fb1d9738 | 1542 | |
c0951b79 TH |
1543 | if (unlikely(dev_priv->pinned_bo != NULL && |
1544 | !dev_priv->query_cid_valid)) | |
1545 | __vmw_execbuf_release_pinned_bo(dev_priv, fence); | |
1546 | ||
ae2a1040 | 1547 | vmw_clear_validations(sw_context); |
8bf445ce TH |
1548 | vmw_execbuf_copy_fence_user(dev_priv, vmw_fpriv(file_priv), ret, |
1549 | user_fence_rep, fence, handle); | |
fb1d9738 | 1550 | |
bb1bd2f4 JB |
1551 | /* Don't unreference when handing fence out */ |
1552 | if (unlikely(out_fence != NULL)) { | |
1553 | *out_fence = fence; | |
1554 | fence = NULL; | |
1555 | } else if (likely(fence != NULL)) { | |
ae2a1040 | 1556 | vmw_fence_obj_unreference(&fence); |
bb1bd2f4 | 1557 | } |
fb1d9738 | 1558 | |
c0951b79 | 1559 | list_splice_init(&sw_context->resource_list, &resource_list); |
922ade0d | 1560 | mutex_unlock(&dev_priv->cmdbuf_mutex); |
c0951b79 TH |
1561 | |
1562 | /* | |
1563 | * Unreference resources outside of the cmdbuf_mutex to | |
1564 | * avoid deadlocks in resource destruction paths. | |
1565 | */ | |
1566 | vmw_resource_list_unreference(&resource_list); | |
1567 | ||
fb1d9738 | 1568 | return 0; |
922ade0d | 1569 | |
fb1d9738 | 1570 | out_err: |
c0951b79 | 1571 | vmw_resource_relocations_free(&sw_context->res_relocations); |
fb1d9738 JB |
1572 | vmw_free_relocations(sw_context); |
1573 | ttm_eu_backoff_reservation(&sw_context->validate_nodes); | |
c0951b79 | 1574 | vmw_resource_list_unreserve(&sw_context->resource_list, true); |
fb1d9738 | 1575 | vmw_clear_validations(sw_context); |
c0951b79 TH |
1576 | if (unlikely(dev_priv->pinned_bo != NULL && |
1577 | !dev_priv->query_cid_valid)) | |
1578 | __vmw_execbuf_release_pinned_bo(dev_priv, NULL); | |
fb1d9738 | 1579 | out_unlock: |
c0951b79 TH |
1580 | list_splice_init(&sw_context->resource_list, &resource_list); |
1581 | error_resource = sw_context->error_resource; | |
1582 | sw_context->error_resource = NULL; | |
fb1d9738 | 1583 | mutex_unlock(&dev_priv->cmdbuf_mutex); |
c0951b79 TH |
1584 | |
1585 | /* | |
1586 | * Unreference resources outside of the cmdbuf_mutex to | |
1587 | * avoid deadlocks in resource destruction paths. | |
1588 | */ | |
1589 | vmw_resource_list_unreference(&resource_list); | |
1590 | if (unlikely(error_resource != NULL)) | |
1591 | vmw_resource_unreference(&error_resource); | |
1592 | ||
922ade0d TH |
1593 | return ret; |
1594 | } | |
1595 | ||
e2fa3a76 TH |
1596 | /** |
1597 | * vmw_execbuf_unpin_panic - Idle the fifo and unpin the query buffer. | |
1598 | * | |
1599 | * @dev_priv: The device private structure. | |
1600 | * | |
1601 | * This function is called to idle the fifo and unpin the query buffer | |
1602 | * if the normal way to do this hits an error, which should typically be | |
1603 | * extremely rare. | |
1604 | */ | |
1605 | static void vmw_execbuf_unpin_panic(struct vmw_private *dev_priv) | |
1606 | { | |
1607 | DRM_ERROR("Can't unpin query buffer. Trying to recover.\n"); | |
1608 | ||
1609 | (void) vmw_fallback_wait(dev_priv, false, true, 0, false, 10*HZ); | |
1610 | vmw_bo_pin(dev_priv->pinned_bo, false); | |
1611 | vmw_bo_pin(dev_priv->dummy_query_bo, false); | |
1612 | dev_priv->dummy_query_bo_pinned = false; | |
1613 | } | |
1614 | ||
1615 | ||
1616 | /** | |
c0951b79 | 1617 | * __vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned |
e2fa3a76 TH |
1618 | * query bo. |
1619 | * | |
1620 | * @dev_priv: The device private structure. | |
c0951b79 TH |
1621 | * @fence: If non-NULL should point to a struct vmw_fence_obj issued |
1622 | * _after_ a query barrier that flushes all queries touching the current | |
1623 | * buffer pointed to by @dev_priv->pinned_bo | |
e2fa3a76 TH |
1624 | * |
1625 | * This function should be used to unpin the pinned query bo, or | |
1626 | * as a query barrier when we need to make sure that all queries have | |
1627 | * finished before the next fifo command. (For example on hardware | |
1628 | * context destructions where the hardware may otherwise leak unfinished | |
1629 | * queries). | |
1630 | * | |
1631 | * This function does not return any failure codes, but make attempts | |
1632 | * to do safe unpinning in case of errors. | |
1633 | * | |
1634 | * The function will synchronize on the previous query barrier, and will | |
1635 | * thus not finish until that barrier has executed. | |
c0951b79 TH |
1636 | * |
1637 | * the @dev_priv->cmdbuf_mutex needs to be held by the current thread | |
1638 | * before calling this function. | |
e2fa3a76 | 1639 | */ |
c0951b79 TH |
1640 | void __vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv, |
1641 | struct vmw_fence_obj *fence) | |
e2fa3a76 TH |
1642 | { |
1643 | int ret = 0; | |
1644 | struct list_head validate_list; | |
1645 | struct ttm_validate_buffer pinned_val, query_val; | |
c0951b79 | 1646 | struct vmw_fence_obj *lfence = NULL; |
e2fa3a76 TH |
1647 | |
1648 | if (dev_priv->pinned_bo == NULL) | |
1649 | goto out_unlock; | |
1650 | ||
e2fa3a76 TH |
1651 | INIT_LIST_HEAD(&validate_list); |
1652 | ||
e2fa3a76 TH |
1653 | pinned_val.bo = ttm_bo_reference(dev_priv->pinned_bo); |
1654 | list_add_tail(&pinned_val.head, &validate_list); | |
1655 | ||
e2fa3a76 TH |
1656 | query_val.bo = ttm_bo_reference(dev_priv->dummy_query_bo); |
1657 | list_add_tail(&query_val.head, &validate_list); | |
1658 | ||
1659 | do { | |
1660 | ret = ttm_eu_reserve_buffers(&validate_list); | |
1661 | } while (ret == -ERESTARTSYS); | |
1662 | ||
1663 | if (unlikely(ret != 0)) { | |
1664 | vmw_execbuf_unpin_panic(dev_priv); | |
1665 | goto out_no_reserve; | |
1666 | } | |
1667 | ||
c0951b79 TH |
1668 | if (dev_priv->query_cid_valid) { |
1669 | BUG_ON(fence != NULL); | |
1670 | ret = vmw_fifo_emit_dummy_query(dev_priv, dev_priv->query_cid); | |
1671 | if (unlikely(ret != 0)) { | |
1672 | vmw_execbuf_unpin_panic(dev_priv); | |
1673 | goto out_no_emit; | |
1674 | } | |
1675 | dev_priv->query_cid_valid = false; | |
e2fa3a76 TH |
1676 | } |
1677 | ||
1678 | vmw_bo_pin(dev_priv->pinned_bo, false); | |
1679 | vmw_bo_pin(dev_priv->dummy_query_bo, false); | |
1680 | dev_priv->dummy_query_bo_pinned = false; | |
1681 | ||
c0951b79 TH |
1682 | if (fence == NULL) { |
1683 | (void) vmw_execbuf_fence_commands(NULL, dev_priv, &lfence, | |
1684 | NULL); | |
1685 | fence = lfence; | |
1686 | } | |
e2fa3a76 | 1687 | ttm_eu_fence_buffer_objects(&validate_list, (void *) fence); |
c0951b79 TH |
1688 | if (lfence != NULL) |
1689 | vmw_fence_obj_unreference(&lfence); | |
e2fa3a76 TH |
1690 | |
1691 | ttm_bo_unref(&query_val.bo); | |
1692 | ttm_bo_unref(&pinned_val.bo); | |
1693 | ttm_bo_unref(&dev_priv->pinned_bo); | |
1694 | ||
1695 | out_unlock: | |
e2fa3a76 TH |
1696 | return; |
1697 | ||
1698 | out_no_emit: | |
1699 | ttm_eu_backoff_reservation(&validate_list); | |
1700 | out_no_reserve: | |
1701 | ttm_bo_unref(&query_val.bo); | |
1702 | ttm_bo_unref(&pinned_val.bo); | |
1703 | ttm_bo_unref(&dev_priv->pinned_bo); | |
c0951b79 TH |
1704 | } |
1705 | ||
1706 | /** | |
1707 | * vmw_execbuf_release_pinned_bo - Flush queries and unpin the pinned | |
1708 | * query bo. | |
1709 | * | |
1710 | * @dev_priv: The device private structure. | |
1711 | * | |
1712 | * This function should be used to unpin the pinned query bo, or | |
1713 | * as a query barrier when we need to make sure that all queries have | |
1714 | * finished before the next fifo command. (For example on hardware | |
1715 | * context destructions where the hardware may otherwise leak unfinished | |
1716 | * queries). | |
1717 | * | |
1718 | * This function does not return any failure codes, but make attempts | |
1719 | * to do safe unpinning in case of errors. | |
1720 | * | |
1721 | * The function will synchronize on the previous query barrier, and will | |
1722 | * thus not finish until that barrier has executed. | |
1723 | */ | |
1724 | void vmw_execbuf_release_pinned_bo(struct vmw_private *dev_priv) | |
1725 | { | |
1726 | mutex_lock(&dev_priv->cmdbuf_mutex); | |
1727 | if (dev_priv->query_cid_valid) | |
1728 | __vmw_execbuf_release_pinned_bo(dev_priv, NULL); | |
e2fa3a76 TH |
1729 | mutex_unlock(&dev_priv->cmdbuf_mutex); |
1730 | } | |
1731 | ||
922ade0d TH |
1732 | |
1733 | int vmw_execbuf_ioctl(struct drm_device *dev, void *data, | |
1734 | struct drm_file *file_priv) | |
1735 | { | |
1736 | struct vmw_private *dev_priv = vmw_priv(dev); | |
1737 | struct drm_vmw_execbuf_arg *arg = (struct drm_vmw_execbuf_arg *)data; | |
1738 | struct vmw_master *vmaster = vmw_master(file_priv->master); | |
1739 | int ret; | |
1740 | ||
1741 | /* | |
1742 | * This will allow us to extend the ioctl argument while | |
1743 | * maintaining backwards compatibility: | |
1744 | * We take different code paths depending on the value of | |
1745 | * arg->version. | |
1746 | */ | |
1747 | ||
1748 | if (unlikely(arg->version != DRM_VMW_EXECBUF_VERSION)) { | |
1749 | DRM_ERROR("Incorrect execbuf version.\n"); | |
1750 | DRM_ERROR("You're running outdated experimental " | |
1751 | "vmwgfx user-space drivers."); | |
1752 | return -EINVAL; | |
1753 | } | |
1754 | ||
1755 | ret = ttm_read_lock(&vmaster->lock, true); | |
1756 | if (unlikely(ret != 0)) | |
1757 | return ret; | |
1758 | ||
1759 | ret = vmw_execbuf_process(file_priv, dev_priv, | |
1760 | (void __user *)(unsigned long)arg->commands, | |
1761 | NULL, arg->command_size, arg->throttle_us, | |
bb1bd2f4 JB |
1762 | (void __user *)(unsigned long)arg->fence_rep, |
1763 | NULL); | |
922ade0d TH |
1764 | |
1765 | if (unlikely(ret != 0)) | |
1766 | goto out_unlock; | |
1767 | ||
1768 | vmw_kms_cursor_post_execbuf(dev_priv); | |
1769 | ||
1770 | out_unlock: | |
fb1d9738 JB |
1771 | ttm_read_unlock(&vmaster->lock); |
1772 | return ret; | |
1773 | } |