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543831cf TH |
1 | /************************************************************************** |
2 | * | |
3 | * Copyright © 2009-2012 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_resource_priv.h" | |
30 | #include "ttm/ttm_placement.h" | |
31 | ||
32 | struct vmw_user_context { | |
33 | struct ttm_base_object base; | |
34 | struct vmw_resource res; | |
173fb7d4 | 35 | struct vmw_ctx_binding_state cbs; |
543831cf TH |
36 | }; |
37 | ||
b5c3b1a6 TH |
38 | |
39 | ||
30f82d81 | 40 | typedef int (*vmw_scrub_func)(struct vmw_ctx_bindinfo *, bool); |
b5c3b1a6 | 41 | |
543831cf TH |
42 | static void vmw_user_context_free(struct vmw_resource *res); |
43 | static struct vmw_resource * | |
44 | vmw_user_context_base_to_res(struct ttm_base_object *base); | |
45 | ||
58a0c5f0 TH |
46 | static int vmw_gb_context_create(struct vmw_resource *res); |
47 | static int vmw_gb_context_bind(struct vmw_resource *res, | |
48 | struct ttm_validate_buffer *val_buf); | |
49 | static int vmw_gb_context_unbind(struct vmw_resource *res, | |
50 | bool readback, | |
51 | struct ttm_validate_buffer *val_buf); | |
52 | static int vmw_gb_context_destroy(struct vmw_resource *res); | |
30f82d81 TH |
53 | static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind); |
54 | static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi, | |
55 | bool rebind); | |
56 | static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi, bool rebind); | |
57 | static void vmw_context_binding_state_scrub(struct vmw_ctx_binding_state *cbs); | |
173fb7d4 | 58 | static void vmw_context_binding_state_kill(struct vmw_ctx_binding_state *cbs); |
543831cf TH |
59 | static uint64_t vmw_user_context_size; |
60 | ||
61 | static const struct vmw_user_resource_conv user_context_conv = { | |
62 | .object_type = VMW_RES_CONTEXT, | |
63 | .base_obj_to_res = vmw_user_context_base_to_res, | |
64 | .res_free = vmw_user_context_free | |
65 | }; | |
66 | ||
67 | const struct vmw_user_resource_conv *user_context_converter = | |
68 | &user_context_conv; | |
69 | ||
70 | ||
71 | static const struct vmw_res_func vmw_legacy_context_func = { | |
72 | .res_type = vmw_res_context, | |
73 | .needs_backup = false, | |
74 | .may_evict = false, | |
75 | .type_name = "legacy contexts", | |
76 | .backup_placement = NULL, | |
77 | .create = NULL, | |
78 | .destroy = NULL, | |
79 | .bind = NULL, | |
80 | .unbind = NULL | |
81 | }; | |
82 | ||
58a0c5f0 TH |
83 | static const struct vmw_res_func vmw_gb_context_func = { |
84 | .res_type = vmw_res_context, | |
85 | .needs_backup = true, | |
86 | .may_evict = true, | |
87 | .type_name = "guest backed contexts", | |
88 | .backup_placement = &vmw_mob_placement, | |
89 | .create = vmw_gb_context_create, | |
90 | .destroy = vmw_gb_context_destroy, | |
91 | .bind = vmw_gb_context_bind, | |
92 | .unbind = vmw_gb_context_unbind | |
93 | }; | |
94 | ||
b5c3b1a6 TH |
95 | static const vmw_scrub_func vmw_scrub_funcs[vmw_ctx_binding_max] = { |
96 | [vmw_ctx_binding_shader] = vmw_context_scrub_shader, | |
97 | [vmw_ctx_binding_rt] = vmw_context_scrub_render_target, | |
98 | [vmw_ctx_binding_tex] = vmw_context_scrub_texture }; | |
99 | ||
543831cf TH |
100 | /** |
101 | * Context management: | |
102 | */ | |
103 | ||
104 | static void vmw_hw_context_destroy(struct vmw_resource *res) | |
105 | { | |
106 | ||
107 | struct vmw_private *dev_priv = res->dev_priv; | |
108 | struct { | |
109 | SVGA3dCmdHeader header; | |
110 | SVGA3dCmdDestroyContext body; | |
111 | } *cmd; | |
112 | ||
113 | ||
58a0c5f0 TH |
114 | if (res->func->destroy == vmw_gb_context_destroy) { |
115 | mutex_lock(&dev_priv->cmdbuf_mutex); | |
30f82d81 TH |
116 | mutex_lock(&dev_priv->binding_mutex); |
117 | (void) vmw_context_binding_state_kill | |
118 | (&container_of(res, struct vmw_user_context, res)->cbs); | |
58a0c5f0 | 119 | (void) vmw_gb_context_destroy(res); |
c8e5e010 | 120 | mutex_unlock(&dev_priv->binding_mutex); |
58a0c5f0 TH |
121 | if (dev_priv->pinned_bo != NULL && |
122 | !dev_priv->query_cid_valid) | |
123 | __vmw_execbuf_release_pinned_bo(dev_priv, NULL); | |
124 | mutex_unlock(&dev_priv->cmdbuf_mutex); | |
125 | return; | |
126 | } | |
127 | ||
543831cf TH |
128 | vmw_execbuf_release_pinned_bo(dev_priv); |
129 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
130 | if (unlikely(cmd == NULL)) { | |
131 | DRM_ERROR("Failed reserving FIFO space for surface " | |
132 | "destruction.\n"); | |
133 | return; | |
134 | } | |
135 | ||
136 | cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DESTROY); | |
137 | cmd->header.size = cpu_to_le32(sizeof(cmd->body)); | |
138 | cmd->body.cid = cpu_to_le32(res->id); | |
139 | ||
140 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
141 | vmw_3d_resource_dec(dev_priv, false); | |
142 | } | |
143 | ||
58a0c5f0 TH |
144 | static int vmw_gb_context_init(struct vmw_private *dev_priv, |
145 | struct vmw_resource *res, | |
146 | void (*res_free) (struct vmw_resource *res)) | |
147 | { | |
148 | int ret; | |
173fb7d4 TH |
149 | struct vmw_user_context *uctx = |
150 | container_of(res, struct vmw_user_context, res); | |
58a0c5f0 TH |
151 | |
152 | ret = vmw_resource_init(dev_priv, res, true, | |
153 | res_free, &vmw_gb_context_func); | |
154 | res->backup_size = SVGA3D_CONTEXT_DATA_SIZE; | |
155 | ||
156 | if (unlikely(ret != 0)) { | |
157 | if (res_free) | |
158 | res_free(res); | |
159 | else | |
160 | kfree(res); | |
161 | return ret; | |
162 | } | |
163 | ||
173fb7d4 TH |
164 | memset(&uctx->cbs, 0, sizeof(uctx->cbs)); |
165 | INIT_LIST_HEAD(&uctx->cbs.list); | |
166 | ||
58a0c5f0 TH |
167 | vmw_resource_activate(res, vmw_hw_context_destroy); |
168 | return 0; | |
169 | } | |
170 | ||
543831cf TH |
171 | static int vmw_context_init(struct vmw_private *dev_priv, |
172 | struct vmw_resource *res, | |
173 | void (*res_free) (struct vmw_resource *res)) | |
174 | { | |
175 | int ret; | |
176 | ||
177 | struct { | |
178 | SVGA3dCmdHeader header; | |
179 | SVGA3dCmdDefineContext body; | |
180 | } *cmd; | |
181 | ||
58a0c5f0 TH |
182 | if (dev_priv->has_mob) |
183 | return vmw_gb_context_init(dev_priv, res, res_free); | |
184 | ||
543831cf TH |
185 | ret = vmw_resource_init(dev_priv, res, false, |
186 | res_free, &vmw_legacy_context_func); | |
187 | ||
188 | if (unlikely(ret != 0)) { | |
189 | DRM_ERROR("Failed to allocate a resource id.\n"); | |
190 | goto out_early; | |
191 | } | |
192 | ||
193 | if (unlikely(res->id >= SVGA3D_MAX_CONTEXT_IDS)) { | |
194 | DRM_ERROR("Out of hw context ids.\n"); | |
195 | vmw_resource_unreference(&res); | |
196 | return -ENOMEM; | |
197 | } | |
198 | ||
199 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
200 | if (unlikely(cmd == NULL)) { | |
201 | DRM_ERROR("Fifo reserve failed.\n"); | |
202 | vmw_resource_unreference(&res); | |
203 | return -ENOMEM; | |
204 | } | |
205 | ||
206 | cmd->header.id = cpu_to_le32(SVGA_3D_CMD_CONTEXT_DEFINE); | |
207 | cmd->header.size = cpu_to_le32(sizeof(cmd->body)); | |
208 | cmd->body.cid = cpu_to_le32(res->id); | |
209 | ||
210 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
211 | (void) vmw_3d_resource_inc(dev_priv, false); | |
212 | vmw_resource_activate(res, vmw_hw_context_destroy); | |
213 | return 0; | |
214 | ||
215 | out_early: | |
216 | if (res_free == NULL) | |
217 | kfree(res); | |
218 | else | |
219 | res_free(res); | |
220 | return ret; | |
221 | } | |
222 | ||
223 | struct vmw_resource *vmw_context_alloc(struct vmw_private *dev_priv) | |
224 | { | |
225 | struct vmw_resource *res = kmalloc(sizeof(*res), GFP_KERNEL); | |
226 | int ret; | |
227 | ||
228 | if (unlikely(res == NULL)) | |
229 | return NULL; | |
230 | ||
231 | ret = vmw_context_init(dev_priv, res, NULL); | |
232 | ||
233 | return (ret == 0) ? res : NULL; | |
234 | } | |
235 | ||
58a0c5f0 TH |
236 | |
237 | static int vmw_gb_context_create(struct vmw_resource *res) | |
238 | { | |
239 | struct vmw_private *dev_priv = res->dev_priv; | |
240 | int ret; | |
241 | struct { | |
242 | SVGA3dCmdHeader header; | |
243 | SVGA3dCmdDefineGBContext body; | |
244 | } *cmd; | |
245 | ||
246 | if (likely(res->id != -1)) | |
247 | return 0; | |
248 | ||
249 | ret = vmw_resource_alloc_id(res); | |
250 | if (unlikely(ret != 0)) { | |
251 | DRM_ERROR("Failed to allocate a context id.\n"); | |
252 | goto out_no_id; | |
253 | } | |
254 | ||
255 | if (unlikely(res->id >= VMWGFX_NUM_GB_CONTEXT)) { | |
256 | ret = -EBUSY; | |
257 | goto out_no_fifo; | |
258 | } | |
259 | ||
260 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
261 | if (unlikely(cmd == NULL)) { | |
262 | DRM_ERROR("Failed reserving FIFO space for context " | |
263 | "creation.\n"); | |
264 | ret = -ENOMEM; | |
265 | goto out_no_fifo; | |
266 | } | |
267 | ||
268 | cmd->header.id = SVGA_3D_CMD_DEFINE_GB_CONTEXT; | |
269 | cmd->header.size = sizeof(cmd->body); | |
270 | cmd->body.cid = res->id; | |
271 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
272 | (void) vmw_3d_resource_inc(dev_priv, false); | |
273 | ||
274 | return 0; | |
275 | ||
276 | out_no_fifo: | |
277 | vmw_resource_release_id(res); | |
278 | out_no_id: | |
279 | return ret; | |
280 | } | |
281 | ||
282 | static int vmw_gb_context_bind(struct vmw_resource *res, | |
283 | struct ttm_validate_buffer *val_buf) | |
284 | { | |
285 | struct vmw_private *dev_priv = res->dev_priv; | |
286 | struct { | |
287 | SVGA3dCmdHeader header; | |
288 | SVGA3dCmdBindGBContext body; | |
289 | } *cmd; | |
290 | struct ttm_buffer_object *bo = val_buf->bo; | |
291 | ||
292 | BUG_ON(bo->mem.mem_type != VMW_PL_MOB); | |
293 | ||
294 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
295 | if (unlikely(cmd == NULL)) { | |
296 | DRM_ERROR("Failed reserving FIFO space for context " | |
297 | "binding.\n"); | |
298 | return -ENOMEM; | |
299 | } | |
300 | ||
301 | cmd->header.id = SVGA_3D_CMD_BIND_GB_CONTEXT; | |
302 | cmd->header.size = sizeof(cmd->body); | |
303 | cmd->body.cid = res->id; | |
304 | cmd->body.mobid = bo->mem.start; | |
305 | cmd->body.validContents = res->backup_dirty; | |
306 | res->backup_dirty = false; | |
307 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
312 | static int vmw_gb_context_unbind(struct vmw_resource *res, | |
313 | bool readback, | |
314 | struct ttm_validate_buffer *val_buf) | |
315 | { | |
316 | struct vmw_private *dev_priv = res->dev_priv; | |
317 | struct ttm_buffer_object *bo = val_buf->bo; | |
318 | struct vmw_fence_obj *fence; | |
173fb7d4 TH |
319 | struct vmw_user_context *uctx = |
320 | container_of(res, struct vmw_user_context, res); | |
58a0c5f0 TH |
321 | |
322 | struct { | |
323 | SVGA3dCmdHeader header; | |
324 | SVGA3dCmdReadbackGBContext body; | |
325 | } *cmd1; | |
326 | struct { | |
327 | SVGA3dCmdHeader header; | |
328 | SVGA3dCmdBindGBContext body; | |
329 | } *cmd2; | |
330 | uint32_t submit_size; | |
331 | uint8_t *cmd; | |
332 | ||
333 | ||
334 | BUG_ON(bo->mem.mem_type != VMW_PL_MOB); | |
335 | ||
173fb7d4 | 336 | mutex_lock(&dev_priv->binding_mutex); |
30f82d81 | 337 | vmw_context_binding_state_scrub(&uctx->cbs); |
173fb7d4 | 338 | |
58a0c5f0 TH |
339 | submit_size = sizeof(*cmd2) + (readback ? sizeof(*cmd1) : 0); |
340 | ||
341 | cmd = vmw_fifo_reserve(dev_priv, submit_size); | |
342 | if (unlikely(cmd == NULL)) { | |
343 | DRM_ERROR("Failed reserving FIFO space for context " | |
344 | "unbinding.\n"); | |
173fb7d4 | 345 | mutex_unlock(&dev_priv->binding_mutex); |
58a0c5f0 TH |
346 | return -ENOMEM; |
347 | } | |
348 | ||
349 | cmd2 = (void *) cmd; | |
350 | if (readback) { | |
351 | cmd1 = (void *) cmd; | |
352 | cmd1->header.id = SVGA_3D_CMD_READBACK_GB_CONTEXT; | |
353 | cmd1->header.size = sizeof(cmd1->body); | |
354 | cmd1->body.cid = res->id; | |
355 | cmd2 = (void *) (&cmd1[1]); | |
356 | } | |
357 | cmd2->header.id = SVGA_3D_CMD_BIND_GB_CONTEXT; | |
358 | cmd2->header.size = sizeof(cmd2->body); | |
359 | cmd2->body.cid = res->id; | |
360 | cmd2->body.mobid = SVGA3D_INVALID_ID; | |
361 | ||
362 | vmw_fifo_commit(dev_priv, submit_size); | |
173fb7d4 | 363 | mutex_unlock(&dev_priv->binding_mutex); |
58a0c5f0 TH |
364 | |
365 | /* | |
366 | * Create a fence object and fence the backup buffer. | |
367 | */ | |
368 | ||
369 | (void) vmw_execbuf_fence_commands(NULL, dev_priv, | |
370 | &fence, NULL); | |
371 | ||
372 | vmw_fence_single_bo(bo, fence); | |
373 | ||
374 | if (likely(fence != NULL)) | |
375 | vmw_fence_obj_unreference(&fence); | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | static int vmw_gb_context_destroy(struct vmw_resource *res) | |
381 | { | |
382 | struct vmw_private *dev_priv = res->dev_priv; | |
383 | struct { | |
384 | SVGA3dCmdHeader header; | |
385 | SVGA3dCmdDestroyGBContext body; | |
386 | } *cmd; | |
387 | ||
388 | if (likely(res->id == -1)) | |
389 | return 0; | |
390 | ||
391 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
392 | if (unlikely(cmd == NULL)) { | |
393 | DRM_ERROR("Failed reserving FIFO space for context " | |
394 | "destruction.\n"); | |
395 | return -ENOMEM; | |
396 | } | |
397 | ||
398 | cmd->header.id = SVGA_3D_CMD_DESTROY_GB_CONTEXT; | |
399 | cmd->header.size = sizeof(cmd->body); | |
400 | cmd->body.cid = res->id; | |
401 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
402 | if (dev_priv->query_cid == res->id) | |
403 | dev_priv->query_cid_valid = false; | |
404 | vmw_resource_release_id(res); | |
405 | vmw_3d_resource_dec(dev_priv, false); | |
406 | ||
407 | return 0; | |
408 | } | |
409 | ||
543831cf TH |
410 | /** |
411 | * User-space context management: | |
412 | */ | |
413 | ||
414 | static struct vmw_resource * | |
415 | vmw_user_context_base_to_res(struct ttm_base_object *base) | |
416 | { | |
417 | return &(container_of(base, struct vmw_user_context, base)->res); | |
418 | } | |
419 | ||
420 | static void vmw_user_context_free(struct vmw_resource *res) | |
421 | { | |
422 | struct vmw_user_context *ctx = | |
423 | container_of(res, struct vmw_user_context, res); | |
424 | struct vmw_private *dev_priv = res->dev_priv; | |
425 | ||
426 | ttm_base_object_kfree(ctx, base); | |
427 | ttm_mem_global_free(vmw_mem_glob(dev_priv), | |
428 | vmw_user_context_size); | |
429 | } | |
430 | ||
431 | /** | |
432 | * This function is called when user space has no more references on the | |
433 | * base object. It releases the base-object's reference on the resource object. | |
434 | */ | |
435 | ||
436 | static void vmw_user_context_base_release(struct ttm_base_object **p_base) | |
437 | { | |
438 | struct ttm_base_object *base = *p_base; | |
439 | struct vmw_user_context *ctx = | |
440 | container_of(base, struct vmw_user_context, base); | |
441 | struct vmw_resource *res = &ctx->res; | |
442 | ||
443 | *p_base = NULL; | |
444 | vmw_resource_unreference(&res); | |
445 | } | |
446 | ||
447 | int vmw_context_destroy_ioctl(struct drm_device *dev, void *data, | |
448 | struct drm_file *file_priv) | |
449 | { | |
450 | struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; | |
451 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; | |
452 | ||
453 | return ttm_ref_object_base_unref(tfile, arg->cid, TTM_REF_USAGE); | |
454 | } | |
455 | ||
456 | int vmw_context_define_ioctl(struct drm_device *dev, void *data, | |
457 | struct drm_file *file_priv) | |
458 | { | |
459 | struct vmw_private *dev_priv = vmw_priv(dev); | |
460 | struct vmw_user_context *ctx; | |
461 | struct vmw_resource *res; | |
462 | struct vmw_resource *tmp; | |
463 | struct drm_vmw_context_arg *arg = (struct drm_vmw_context_arg *)data; | |
464 | struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile; | |
543831cf TH |
465 | int ret; |
466 | ||
467 | ||
468 | /* | |
469 | * Approximate idr memory usage with 128 bytes. It will be limited | |
470 | * by maximum number_of contexts anyway. | |
471 | */ | |
472 | ||
473 | if (unlikely(vmw_user_context_size == 0)) | |
474 | vmw_user_context_size = ttm_round_pot(sizeof(*ctx)) + 128; | |
475 | ||
294adf7d | 476 | ret = ttm_read_lock(&dev_priv->reservation_sem, true); |
543831cf TH |
477 | if (unlikely(ret != 0)) |
478 | return ret; | |
479 | ||
480 | ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv), | |
481 | vmw_user_context_size, | |
482 | false, true); | |
483 | if (unlikely(ret != 0)) { | |
484 | if (ret != -ERESTARTSYS) | |
485 | DRM_ERROR("Out of graphics memory for context" | |
486 | " creation.\n"); | |
487 | goto out_unlock; | |
488 | } | |
489 | ||
490 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); | |
491 | if (unlikely(ctx == NULL)) { | |
492 | ttm_mem_global_free(vmw_mem_glob(dev_priv), | |
493 | vmw_user_context_size); | |
494 | ret = -ENOMEM; | |
495 | goto out_unlock; | |
496 | } | |
497 | ||
498 | res = &ctx->res; | |
499 | ctx->base.shareable = false; | |
500 | ctx->base.tfile = NULL; | |
501 | ||
502 | /* | |
503 | * From here on, the destructor takes over resource freeing. | |
504 | */ | |
505 | ||
506 | ret = vmw_context_init(dev_priv, res, vmw_user_context_free); | |
507 | if (unlikely(ret != 0)) | |
508 | goto out_unlock; | |
509 | ||
510 | tmp = vmw_resource_reference(&ctx->res); | |
511 | ret = ttm_base_object_init(tfile, &ctx->base, false, VMW_RES_CONTEXT, | |
512 | &vmw_user_context_base_release, NULL); | |
513 | ||
514 | if (unlikely(ret != 0)) { | |
515 | vmw_resource_unreference(&tmp); | |
516 | goto out_err; | |
517 | } | |
518 | ||
519 | arg->cid = ctx->base.hash.key; | |
520 | out_err: | |
521 | vmw_resource_unreference(&res); | |
522 | out_unlock: | |
294adf7d | 523 | ttm_read_unlock(&dev_priv->reservation_sem); |
543831cf TH |
524 | return ret; |
525 | ||
526 | } | |
b5c3b1a6 TH |
527 | |
528 | /** | |
529 | * vmw_context_scrub_shader - scrub a shader binding from a context. | |
530 | * | |
531 | * @bi: single binding information. | |
30f82d81 | 532 | * @rebind: Whether to issue a bind instead of scrub command. |
b5c3b1a6 | 533 | */ |
30f82d81 | 534 | static int vmw_context_scrub_shader(struct vmw_ctx_bindinfo *bi, bool rebind) |
b5c3b1a6 TH |
535 | { |
536 | struct vmw_private *dev_priv = bi->ctx->dev_priv; | |
537 | struct { | |
538 | SVGA3dCmdHeader header; | |
539 | SVGA3dCmdSetShader body; | |
540 | } *cmd; | |
541 | ||
542 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
543 | if (unlikely(cmd == NULL)) { | |
544 | DRM_ERROR("Failed reserving FIFO space for shader " | |
545 | "unbinding.\n"); | |
546 | return -ENOMEM; | |
547 | } | |
548 | ||
549 | cmd->header.id = SVGA_3D_CMD_SET_SHADER; | |
550 | cmd->header.size = sizeof(cmd->body); | |
551 | cmd->body.cid = bi->ctx->id; | |
552 | cmd->body.type = bi->i1.shader_type; | |
8e67bbbc | 553 | cmd->body.shid = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID); |
b5c3b1a6 TH |
554 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
555 | ||
556 | return 0; | |
557 | } | |
558 | ||
559 | /** | |
560 | * vmw_context_scrub_render_target - scrub a render target binding | |
561 | * from a context. | |
562 | * | |
563 | * @bi: single binding information. | |
30f82d81 | 564 | * @rebind: Whether to issue a bind instead of scrub command. |
b5c3b1a6 | 565 | */ |
30f82d81 TH |
566 | static int vmw_context_scrub_render_target(struct vmw_ctx_bindinfo *bi, |
567 | bool rebind) | |
b5c3b1a6 TH |
568 | { |
569 | struct vmw_private *dev_priv = bi->ctx->dev_priv; | |
570 | struct { | |
571 | SVGA3dCmdHeader header; | |
572 | SVGA3dCmdSetRenderTarget body; | |
573 | } *cmd; | |
574 | ||
575 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
576 | if (unlikely(cmd == NULL)) { | |
577 | DRM_ERROR("Failed reserving FIFO space for render target " | |
578 | "unbinding.\n"); | |
579 | return -ENOMEM; | |
580 | } | |
581 | ||
582 | cmd->header.id = SVGA_3D_CMD_SETRENDERTARGET; | |
583 | cmd->header.size = sizeof(cmd->body); | |
584 | cmd->body.cid = bi->ctx->id; | |
585 | cmd->body.type = bi->i1.rt_type; | |
8e67bbbc | 586 | cmd->body.target.sid = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID); |
b5c3b1a6 TH |
587 | cmd->body.target.face = 0; |
588 | cmd->body.target.mipmap = 0; | |
589 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); | |
590 | ||
591 | return 0; | |
592 | } | |
593 | ||
594 | /** | |
595 | * vmw_context_scrub_texture - scrub a texture binding from a context. | |
596 | * | |
597 | * @bi: single binding information. | |
30f82d81 | 598 | * @rebind: Whether to issue a bind instead of scrub command. |
b5c3b1a6 TH |
599 | * |
600 | * TODO: Possibly complement this function with a function that takes | |
601 | * a list of texture bindings and combines them to a single command. | |
602 | */ | |
30f82d81 TH |
603 | static int vmw_context_scrub_texture(struct vmw_ctx_bindinfo *bi, |
604 | bool rebind) | |
b5c3b1a6 TH |
605 | { |
606 | struct vmw_private *dev_priv = bi->ctx->dev_priv; | |
607 | struct { | |
608 | SVGA3dCmdHeader header; | |
609 | struct { | |
610 | SVGA3dCmdSetTextureState c; | |
611 | SVGA3dTextureState s1; | |
612 | } body; | |
613 | } *cmd; | |
614 | ||
615 | cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd)); | |
616 | if (unlikely(cmd == NULL)) { | |
617 | DRM_ERROR("Failed reserving FIFO space for texture " | |
618 | "unbinding.\n"); | |
619 | return -ENOMEM; | |
620 | } | |
621 | ||
622 | ||
623 | cmd->header.id = SVGA_3D_CMD_SETTEXTURESTATE; | |
624 | cmd->header.size = sizeof(cmd->body); | |
625 | cmd->body.c.cid = bi->ctx->id; | |
626 | cmd->body.s1.stage = bi->i1.texture_stage; | |
627 | cmd->body.s1.name = SVGA3D_TS_BIND_TEXTURE; | |
8e67bbbc | 628 | cmd->body.s1.value = ((rebind) ? bi->res->id : SVGA3D_INVALID_ID); |
b5c3b1a6 TH |
629 | vmw_fifo_commit(dev_priv, sizeof(*cmd)); |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
634 | /** | |
635 | * vmw_context_binding_drop: Stop tracking a context binding | |
636 | * | |
637 | * @cb: Pointer to binding tracker storage. | |
638 | * | |
639 | * Stops tracking a context binding, and re-initializes its storage. | |
640 | * Typically used when the context binding is replaced with a binding to | |
641 | * another (or the same, for that matter) resource. | |
642 | */ | |
643 | static void vmw_context_binding_drop(struct vmw_ctx_binding *cb) | |
644 | { | |
645 | list_del(&cb->ctx_list); | |
173fb7d4 TH |
646 | if (!list_empty(&cb->res_list)) |
647 | list_del(&cb->res_list); | |
b5c3b1a6 TH |
648 | cb->bi.ctx = NULL; |
649 | } | |
650 | ||
651 | /** | |
652 | * vmw_context_binding_add: Start tracking a context binding | |
653 | * | |
654 | * @cbs: Pointer to the context binding state tracker. | |
655 | * @bi: Information about the binding to track. | |
656 | * | |
657 | * Performs basic checks on the binding to make sure arguments are within | |
658 | * bounds and then starts tracking the binding in the context binding | |
659 | * state structure @cbs. | |
660 | */ | |
661 | int vmw_context_binding_add(struct vmw_ctx_binding_state *cbs, | |
662 | const struct vmw_ctx_bindinfo *bi) | |
663 | { | |
664 | struct vmw_ctx_binding *loc; | |
665 | ||
666 | switch (bi->bt) { | |
667 | case vmw_ctx_binding_rt: | |
668 | if (unlikely((unsigned)bi->i1.rt_type >= SVGA3D_RT_MAX)) { | |
669 | DRM_ERROR("Illegal render target type %u.\n", | |
670 | (unsigned) bi->i1.rt_type); | |
671 | return -EINVAL; | |
672 | } | |
673 | loc = &cbs->render_targets[bi->i1.rt_type]; | |
674 | break; | |
675 | case vmw_ctx_binding_tex: | |
676 | if (unlikely((unsigned)bi->i1.texture_stage >= | |
677 | SVGA3D_NUM_TEXTURE_UNITS)) { | |
678 | DRM_ERROR("Illegal texture/sampler unit %u.\n", | |
679 | (unsigned) bi->i1.texture_stage); | |
680 | return -EINVAL; | |
681 | } | |
682 | loc = &cbs->texture_units[bi->i1.texture_stage]; | |
683 | break; | |
684 | case vmw_ctx_binding_shader: | |
685 | if (unlikely((unsigned)bi->i1.shader_type >= | |
686 | SVGA3D_SHADERTYPE_MAX)) { | |
687 | DRM_ERROR("Illegal shader type %u.\n", | |
688 | (unsigned) bi->i1.shader_type); | |
689 | return -EINVAL; | |
690 | } | |
691 | loc = &cbs->shaders[bi->i1.shader_type]; | |
692 | break; | |
693 | default: | |
694 | BUG(); | |
695 | } | |
696 | ||
697 | if (loc->bi.ctx != NULL) | |
698 | vmw_context_binding_drop(loc); | |
699 | ||
700 | loc->bi = *bi; | |
30f82d81 | 701 | loc->bi.scrubbed = false; |
b5c3b1a6 | 702 | list_add_tail(&loc->ctx_list, &cbs->list); |
173fb7d4 | 703 | INIT_LIST_HEAD(&loc->res_list); |
b5c3b1a6 TH |
704 | |
705 | return 0; | |
706 | } | |
707 | ||
173fb7d4 TH |
708 | /** |
709 | * vmw_context_binding_transfer: Transfer a context binding tracking entry. | |
710 | * | |
711 | * @cbs: Pointer to the persistent context binding state tracker. | |
712 | * @bi: Information about the binding to track. | |
713 | * | |
714 | */ | |
715 | static void vmw_context_binding_transfer(struct vmw_ctx_binding_state *cbs, | |
716 | const struct vmw_ctx_bindinfo *bi) | |
717 | { | |
718 | struct vmw_ctx_binding *loc; | |
719 | ||
720 | switch (bi->bt) { | |
721 | case vmw_ctx_binding_rt: | |
722 | loc = &cbs->render_targets[bi->i1.rt_type]; | |
723 | break; | |
724 | case vmw_ctx_binding_tex: | |
725 | loc = &cbs->texture_units[bi->i1.texture_stage]; | |
726 | break; | |
727 | case vmw_ctx_binding_shader: | |
728 | loc = &cbs->shaders[bi->i1.shader_type]; | |
729 | break; | |
730 | default: | |
731 | BUG(); | |
732 | } | |
733 | ||
734 | if (loc->bi.ctx != NULL) | |
735 | vmw_context_binding_drop(loc); | |
736 | ||
30f82d81 TH |
737 | if (bi->res != NULL) { |
738 | loc->bi = *bi; | |
739 | list_add_tail(&loc->ctx_list, &cbs->list); | |
173fb7d4 | 740 | list_add_tail(&loc->res_list, &bi->res->binding_head); |
30f82d81 | 741 | } |
173fb7d4 TH |
742 | } |
743 | ||
b5c3b1a6 TH |
744 | /** |
745 | * vmw_context_binding_kill - Kill a binding on the device | |
746 | * and stop tracking it. | |
747 | * | |
748 | * @cb: Pointer to binding tracker storage. | |
749 | * | |
750 | * Emits FIFO commands to scrub a binding represented by @cb. | |
751 | * Then stops tracking the binding and re-initializes its storage. | |
752 | */ | |
3e894a62 | 753 | static void vmw_context_binding_kill(struct vmw_ctx_binding *cb) |
b5c3b1a6 | 754 | { |
30f82d81 TH |
755 | if (!cb->bi.scrubbed) { |
756 | (void) vmw_scrub_funcs[cb->bi.bt](&cb->bi, false); | |
757 | cb->bi.scrubbed = true; | |
758 | } | |
b5c3b1a6 TH |
759 | vmw_context_binding_drop(cb); |
760 | } | |
761 | ||
762 | /** | |
763 | * vmw_context_binding_state_kill - Kill all bindings associated with a | |
764 | * struct vmw_ctx_binding state structure, and re-initialize the structure. | |
765 | * | |
766 | * @cbs: Pointer to the context binding state tracker. | |
767 | * | |
768 | * Emits commands to scrub all bindings associated with the | |
769 | * context binding state tracker. Then re-initializes the whole structure. | |
770 | */ | |
173fb7d4 | 771 | static void vmw_context_binding_state_kill(struct vmw_ctx_binding_state *cbs) |
b5c3b1a6 TH |
772 | { |
773 | struct vmw_ctx_binding *entry, *next; | |
774 | ||
173fb7d4 | 775 | list_for_each_entry_safe(entry, next, &cbs->list, ctx_list) |
b5c3b1a6 | 776 | vmw_context_binding_kill(entry); |
173fb7d4 TH |
777 | } |
778 | ||
30f82d81 TH |
779 | /** |
780 | * vmw_context_binding_state_scrub - Scrub all bindings associated with a | |
781 | * struct vmw_ctx_binding state structure. | |
782 | * | |
783 | * @cbs: Pointer to the context binding state tracker. | |
784 | * | |
785 | * Emits commands to scrub all bindings associated with the | |
786 | * context binding state tracker. | |
787 | */ | |
788 | static void vmw_context_binding_state_scrub(struct vmw_ctx_binding_state *cbs) | |
789 | { | |
790 | struct vmw_ctx_binding *entry; | |
791 | ||
792 | list_for_each_entry(entry, &cbs->list, ctx_list) { | |
793 | if (!entry->bi.scrubbed) { | |
794 | (void) vmw_scrub_funcs[entry->bi.bt](&entry->bi, false); | |
795 | entry->bi.scrubbed = true; | |
796 | } | |
797 | } | |
798 | } | |
799 | ||
173fb7d4 TH |
800 | /** |
801 | * vmw_context_binding_res_list_kill - Kill all bindings on a | |
802 | * resource binding list | |
803 | * | |
804 | * @head: list head of resource binding list | |
805 | * | |
806 | * Kills all bindings associated with a specific resource. Typically | |
807 | * called before the resource is destroyed. | |
808 | */ | |
809 | void vmw_context_binding_res_list_kill(struct list_head *head) | |
810 | { | |
811 | struct vmw_ctx_binding *entry, *next; | |
812 | ||
813 | list_for_each_entry_safe(entry, next, head, res_list) | |
814 | vmw_context_binding_kill(entry); | |
815 | } | |
816 | ||
30f82d81 TH |
817 | /** |
818 | * vmw_context_binding_res_list_scrub - Scrub all bindings on a | |
819 | * resource binding list | |
820 | * | |
821 | * @head: list head of resource binding list | |
822 | * | |
823 | * Scrub all bindings associated with a specific resource. Typically | |
824 | * called before the resource is evicted. | |
825 | */ | |
826 | void vmw_context_binding_res_list_scrub(struct list_head *head) | |
827 | { | |
828 | struct vmw_ctx_binding *entry; | |
829 | ||
830 | list_for_each_entry(entry, head, res_list) { | |
831 | if (!entry->bi.scrubbed) { | |
832 | (void) vmw_scrub_funcs[entry->bi.bt](&entry->bi, false); | |
833 | entry->bi.scrubbed = true; | |
834 | } | |
835 | } | |
836 | } | |
837 | ||
173fb7d4 TH |
838 | /** |
839 | * vmw_context_binding_state_transfer - Commit staged binding info | |
840 | * | |
841 | * @ctx: Pointer to context to commit the staged binding info to. | |
842 | * @from: Staged binding info built during execbuf. | |
843 | * | |
844 | * Transfers binding info from a temporary structure to the persistent | |
845 | * structure in the context. This can be done once commands | |
846 | */ | |
847 | void vmw_context_binding_state_transfer(struct vmw_resource *ctx, | |
848 | struct vmw_ctx_binding_state *from) | |
849 | { | |
850 | struct vmw_user_context *uctx = | |
851 | container_of(ctx, struct vmw_user_context, res); | |
852 | struct vmw_ctx_binding *entry, *next; | |
853 | ||
854 | list_for_each_entry_safe(entry, next, &from->list, ctx_list) | |
855 | vmw_context_binding_transfer(&uctx->cbs, &entry->bi); | |
b5c3b1a6 | 856 | } |
30f82d81 TH |
857 | |
858 | /** | |
859 | * vmw_context_rebind_all - Rebind all scrubbed bindings of a context | |
860 | * | |
861 | * @ctx: The context resource | |
862 | * | |
863 | * Walks through the context binding list and rebinds all scrubbed | |
864 | * resources. | |
865 | */ | |
866 | int vmw_context_rebind_all(struct vmw_resource *ctx) | |
867 | { | |
868 | struct vmw_ctx_binding *entry; | |
869 | struct vmw_user_context *uctx = | |
870 | container_of(ctx, struct vmw_user_context, res); | |
871 | struct vmw_ctx_binding_state *cbs = &uctx->cbs; | |
872 | int ret; | |
873 | ||
874 | list_for_each_entry(entry, &cbs->list, ctx_list) { | |
875 | if (likely(!entry->bi.scrubbed)) | |
876 | continue; | |
877 | ||
878 | if (WARN_ON(entry->bi.res == NULL || entry->bi.res->id == | |
879 | SVGA3D_INVALID_ID)) | |
880 | continue; | |
881 | ||
882 | ret = vmw_scrub_funcs[entry->bi.bt](&entry->bi, true); | |
883 | if (unlikely(ret != 0)) | |
884 | return ret; | |
885 | ||
886 | entry->bi.scrubbed = false; | |
887 | } | |
888 | ||
889 | return 0; | |
890 | } | |
891 | ||
892 | /** | |
893 | * vmw_context_binding_list - Return a list of context bindings | |
894 | * | |
895 | * @ctx: The context resource | |
896 | * | |
897 | * Returns the current list of bindings of the given context. Note that | |
898 | * this list becomes stale as soon as the dev_priv::binding_mutex is unlocked. | |
899 | */ | |
900 | struct list_head *vmw_context_binding_list(struct vmw_resource *ctx) | |
901 | { | |
902 | return &(container_of(ctx, struct vmw_user_context, res)->cbs.list); | |
903 | } |