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cb471f14 EK |
1 | /* |
2 | * Copyright (C) 2012 Samsung Electronics Co.Ltd | |
3 | * Authors: | |
4 | * Eunchul Kim <chulspro.kim@samsung.com> | |
5 | * Jinyoung Jeon <jy0.jeon@samsung.com> | |
6 | * Sangmin Lee <lsmin.lee@samsung.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
12 | * | |
13 | */ | |
14 | #include <linux/kernel.h> | |
15 | #include <linux/module.h> | |
16 | #include <linux/platform_device.h> | |
17 | #include <linux/types.h> | |
18 | #include <linux/clk.h> | |
19 | #include <linux/pm_runtime.h> | |
20 | #include <plat/map-base.h> | |
21 | ||
22 | #include <drm/drmP.h> | |
23 | #include <drm/exynos_drm.h> | |
24 | #include "exynos_drm_drv.h" | |
25 | #include "exynos_drm_gem.h" | |
26 | #include "exynos_drm_ipp.h" | |
c12e2617 | 27 | #include "exynos_drm_iommu.h" |
cb471f14 EK |
28 | |
29 | /* | |
6fe891f6 | 30 | * IPP stands for Image Post Processing and |
cb471f14 EK |
31 | * supports image scaler/rotator and input/output DMA operations. |
32 | * using FIMC, GSC, Rotator, so on. | |
33 | * IPP is integration device driver of same attribute h/w | |
34 | */ | |
35 | ||
36 | /* | |
37 | * TODO | |
38 | * 1. expand command control id. | |
39 | * 2. integrate property and config. | |
40 | * 3. removed send_event id check routine. | |
41 | * 4. compare send_event id if needed. | |
42 | * 5. free subdrv_remove notifier callback list if needed. | |
43 | * 6. need to check subdrv_open about multi-open. | |
44 | * 7. need to power_on implement power and sysmmu ctrl. | |
45 | */ | |
46 | ||
47 | #define get_ipp_context(dev) platform_get_drvdata(to_platform_device(dev)) | |
48 | #define ipp_is_m2m_cmd(c) (c == IPP_CMD_M2M) | |
49 | ||
50 | /* | |
51 | * A structure of event. | |
52 | * | |
53 | * @base: base of event. | |
54 | * @event: ipp event. | |
55 | */ | |
56 | struct drm_exynos_ipp_send_event { | |
57 | struct drm_pending_event base; | |
58 | struct drm_exynos_ipp_event event; | |
59 | }; | |
60 | ||
61 | /* | |
62 | * A structure of memory node. | |
63 | * | |
64 | * @list: list head to memory queue information. | |
65 | * @ops_id: id of operations. | |
66 | * @prop_id: id of property. | |
67 | * @buf_id: id of buffer. | |
68 | * @buf_info: gem objects and dma address, size. | |
69 | * @filp: a pointer to drm_file. | |
70 | */ | |
71 | struct drm_exynos_ipp_mem_node { | |
72 | struct list_head list; | |
73 | enum drm_exynos_ops_id ops_id; | |
74 | u32 prop_id; | |
75 | u32 buf_id; | |
76 | struct drm_exynos_ipp_buf_info buf_info; | |
77 | struct drm_file *filp; | |
78 | }; | |
79 | ||
80 | /* | |
81 | * A structure of ipp context. | |
82 | * | |
83 | * @subdrv: prepare initialization using subdrv. | |
84 | * @ipp_lock: lock for synchronization of access to ipp_idr. | |
85 | * @prop_lock: lock for synchronization of access to prop_idr. | |
86 | * @ipp_idr: ipp driver idr. | |
87 | * @prop_idr: property idr. | |
88 | * @event_workq: event work queue. | |
89 | * @cmd_workq: command work queue. | |
90 | */ | |
91 | struct ipp_context { | |
92 | struct exynos_drm_subdrv subdrv; | |
93 | struct mutex ipp_lock; | |
94 | struct mutex prop_lock; | |
95 | struct idr ipp_idr; | |
96 | struct idr prop_idr; | |
97 | struct workqueue_struct *event_workq; | |
98 | struct workqueue_struct *cmd_workq; | |
99 | }; | |
100 | ||
101 | static LIST_HEAD(exynos_drm_ippdrv_list); | |
102 | static DEFINE_MUTEX(exynos_drm_ippdrv_lock); | |
103 | static BLOCKING_NOTIFIER_HEAD(exynos_drm_ippnb_list); | |
104 | ||
105 | int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv) | |
106 | { | |
107 | DRM_DEBUG_KMS("%s\n", __func__); | |
108 | ||
109 | if (!ippdrv) | |
110 | return -EINVAL; | |
111 | ||
112 | mutex_lock(&exynos_drm_ippdrv_lock); | |
113 | list_add_tail(&ippdrv->drv_list, &exynos_drm_ippdrv_list); | |
114 | mutex_unlock(&exynos_drm_ippdrv_lock); | |
115 | ||
116 | return 0; | |
117 | } | |
118 | ||
119 | int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv) | |
120 | { | |
121 | DRM_DEBUG_KMS("%s\n", __func__); | |
122 | ||
123 | if (!ippdrv) | |
124 | return -EINVAL; | |
125 | ||
126 | mutex_lock(&exynos_drm_ippdrv_lock); | |
127 | list_del(&ippdrv->drv_list); | |
128 | mutex_unlock(&exynos_drm_ippdrv_lock); | |
129 | ||
130 | return 0; | |
131 | } | |
132 | ||
133 | static int ipp_create_id(struct idr *id_idr, struct mutex *lock, void *obj, | |
134 | u32 *idp) | |
135 | { | |
136 | int ret; | |
137 | ||
138 | DRM_DEBUG_KMS("%s\n", __func__); | |
139 | ||
140 | again: | |
141 | /* ensure there is space available to allocate a handle */ | |
142 | if (idr_pre_get(id_idr, GFP_KERNEL) == 0) { | |
143 | DRM_ERROR("failed to get idr.\n"); | |
144 | return -ENOMEM; | |
145 | } | |
146 | ||
147 | /* do the allocation under our mutexlock */ | |
148 | mutex_lock(lock); | |
149 | ret = idr_get_new_above(id_idr, obj, 1, (int *)idp); | |
150 | mutex_unlock(lock); | |
151 | if (ret == -EAGAIN) | |
152 | goto again; | |
153 | ||
154 | return ret; | |
155 | } | |
156 | ||
157 | static void *ipp_find_obj(struct idr *id_idr, struct mutex *lock, u32 id) | |
158 | { | |
159 | void *obj; | |
160 | ||
161 | DRM_DEBUG_KMS("%s:id[%d]\n", __func__, id); | |
162 | ||
163 | mutex_lock(lock); | |
164 | ||
165 | /* find object using handle */ | |
166 | obj = idr_find(id_idr, id); | |
167 | if (!obj) { | |
168 | DRM_ERROR("failed to find object.\n"); | |
169 | mutex_unlock(lock); | |
170 | return ERR_PTR(-ENODEV); | |
171 | } | |
172 | ||
173 | mutex_unlock(lock); | |
174 | ||
175 | return obj; | |
176 | } | |
177 | ||
178 | static inline bool ipp_check_dedicated(struct exynos_drm_ippdrv *ippdrv, | |
179 | enum drm_exynos_ipp_cmd cmd) | |
180 | { | |
181 | /* | |
182 | * check dedicated flag and WB, OUTPUT operation with | |
183 | * power on state. | |
184 | */ | |
185 | if (ippdrv->dedicated || (!ipp_is_m2m_cmd(cmd) && | |
186 | !pm_runtime_suspended(ippdrv->dev))) | |
187 | return true; | |
188 | ||
189 | return false; | |
190 | } | |
191 | ||
192 | static struct exynos_drm_ippdrv *ipp_find_driver(struct ipp_context *ctx, | |
193 | struct drm_exynos_ipp_property *property) | |
194 | { | |
195 | struct exynos_drm_ippdrv *ippdrv; | |
196 | u32 ipp_id = property->ipp_id; | |
197 | ||
198 | DRM_DEBUG_KMS("%s:ipp_id[%d]\n", __func__, ipp_id); | |
199 | ||
200 | if (ipp_id) { | |
201 | /* find ipp driver using idr */ | |
202 | ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, | |
203 | ipp_id); | |
204 | if (IS_ERR_OR_NULL(ippdrv)) { | |
205 | DRM_ERROR("not found ipp%d driver.\n", ipp_id); | |
206 | return ippdrv; | |
207 | } | |
208 | ||
209 | /* | |
210 | * WB, OUTPUT opertion not supported multi-operation. | |
211 | * so, make dedicated state at set property ioctl. | |
212 | * when ipp driver finished operations, clear dedicated flags. | |
213 | */ | |
214 | if (ipp_check_dedicated(ippdrv, property->cmd)) { | |
215 | DRM_ERROR("already used choose device.\n"); | |
216 | return ERR_PTR(-EBUSY); | |
217 | } | |
218 | ||
219 | /* | |
220 | * This is necessary to find correct device in ipp drivers. | |
221 | * ipp drivers have different abilities, | |
222 | * so need to check property. | |
223 | */ | |
224 | if (ippdrv->check_property && | |
225 | ippdrv->check_property(ippdrv->dev, property)) { | |
226 | DRM_ERROR("not support property.\n"); | |
227 | return ERR_PTR(-EINVAL); | |
228 | } | |
229 | ||
230 | return ippdrv; | |
231 | } else { | |
232 | /* | |
233 | * This case is search all ipp driver for finding. | |
234 | * user application don't set ipp_id in this case, | |
235 | * so ipp subsystem search correct driver in driver list. | |
236 | */ | |
237 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
238 | if (ipp_check_dedicated(ippdrv, property->cmd)) { | |
239 | DRM_DEBUG_KMS("%s:used device.\n", __func__); | |
240 | continue; | |
241 | } | |
242 | ||
243 | if (ippdrv->check_property && | |
244 | ippdrv->check_property(ippdrv->dev, property)) { | |
245 | DRM_DEBUG_KMS("%s:not support property.\n", | |
246 | __func__); | |
247 | continue; | |
248 | } | |
249 | ||
250 | return ippdrv; | |
251 | } | |
252 | ||
253 | DRM_ERROR("not support ipp driver operations.\n"); | |
254 | } | |
255 | ||
256 | return ERR_PTR(-ENODEV); | |
257 | } | |
258 | ||
259 | static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id) | |
260 | { | |
261 | struct exynos_drm_ippdrv *ippdrv; | |
262 | struct drm_exynos_ipp_cmd_node *c_node; | |
263 | int count = 0; | |
264 | ||
265 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, prop_id); | |
266 | ||
267 | if (list_empty(&exynos_drm_ippdrv_list)) { | |
268 | DRM_DEBUG_KMS("%s:ippdrv_list is empty.\n", __func__); | |
269 | return ERR_PTR(-ENODEV); | |
270 | } | |
271 | ||
272 | /* | |
273 | * This case is search ipp driver by prop_id handle. | |
274 | * sometimes, ipp subsystem find driver by prop_id. | |
275 | * e.g PAUSE state, queue buf, command contro. | |
276 | */ | |
277 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
278 | DRM_DEBUG_KMS("%s:count[%d]ippdrv[0x%x]\n", __func__, | |
279 | count++, (int)ippdrv); | |
280 | ||
281 | if (!list_empty(&ippdrv->cmd_list)) { | |
282 | list_for_each_entry(c_node, &ippdrv->cmd_list, list) | |
283 | if (c_node->property.prop_id == prop_id) | |
284 | return ippdrv; | |
285 | } | |
286 | } | |
287 | ||
288 | return ERR_PTR(-ENODEV); | |
289 | } | |
290 | ||
291 | int exynos_drm_ipp_get_property(struct drm_device *drm_dev, void *data, | |
292 | struct drm_file *file) | |
293 | { | |
294 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
295 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
296 | struct device *dev = priv->dev; | |
297 | struct ipp_context *ctx = get_ipp_context(dev); | |
298 | struct drm_exynos_ipp_prop_list *prop_list = data; | |
299 | struct exynos_drm_ippdrv *ippdrv; | |
300 | int count = 0; | |
301 | ||
302 | DRM_DEBUG_KMS("%s\n", __func__); | |
303 | ||
304 | if (!ctx) { | |
305 | DRM_ERROR("invalid context.\n"); | |
306 | return -EINVAL; | |
307 | } | |
308 | ||
309 | if (!prop_list) { | |
310 | DRM_ERROR("invalid property parameter.\n"); | |
311 | return -EINVAL; | |
312 | } | |
313 | ||
314 | DRM_DEBUG_KMS("%s:ipp_id[%d]\n", __func__, prop_list->ipp_id); | |
315 | ||
316 | if (!prop_list->ipp_id) { | |
317 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) | |
318 | count++; | |
319 | /* | |
320 | * Supports ippdrv list count for user application. | |
321 | * First step user application getting ippdrv count. | |
322 | * and second step getting ippdrv capability using ipp_id. | |
323 | */ | |
324 | prop_list->count = count; | |
325 | } else { | |
326 | /* | |
327 | * Getting ippdrv capability by ipp_id. | |
328 | * some deivce not supported wb, output interface. | |
329 | * so, user application detect correct ipp driver | |
330 | * using this ioctl. | |
331 | */ | |
332 | ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, | |
333 | prop_list->ipp_id); | |
334 | if (!ippdrv) { | |
335 | DRM_ERROR("not found ipp%d driver.\n", | |
336 | prop_list->ipp_id); | |
337 | return -EINVAL; | |
338 | } | |
339 | ||
340 | prop_list = ippdrv->prop_list; | |
341 | } | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | static void ipp_print_property(struct drm_exynos_ipp_property *property, | |
347 | int idx) | |
348 | { | |
349 | struct drm_exynos_ipp_config *config = &property->config[idx]; | |
350 | struct drm_exynos_pos *pos = &config->pos; | |
351 | struct drm_exynos_sz *sz = &config->sz; | |
352 | ||
353 | DRM_DEBUG_KMS("%s:prop_id[%d]ops[%s]fmt[0x%x]\n", | |
354 | __func__, property->prop_id, idx ? "dst" : "src", config->fmt); | |
355 | ||
356 | DRM_DEBUG_KMS("%s:pos[%d %d %d %d]sz[%d %d]f[%d]r[%d]\n", | |
357 | __func__, pos->x, pos->y, pos->w, pos->h, | |
358 | sz->hsize, sz->vsize, config->flip, config->degree); | |
359 | } | |
360 | ||
361 | static int ipp_find_and_set_property(struct drm_exynos_ipp_property *property) | |
362 | { | |
363 | struct exynos_drm_ippdrv *ippdrv; | |
364 | struct drm_exynos_ipp_cmd_node *c_node; | |
365 | u32 prop_id = property->prop_id; | |
366 | ||
367 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, prop_id); | |
368 | ||
369 | ippdrv = ipp_find_drv_by_handle(prop_id); | |
370 | if (IS_ERR_OR_NULL(ippdrv)) { | |
371 | DRM_ERROR("failed to get ipp driver.\n"); | |
372 | return -EINVAL; | |
373 | } | |
374 | ||
375 | /* | |
376 | * Find command node using command list in ippdrv. | |
377 | * when we find this command no using prop_id. | |
378 | * return property information set in this command node. | |
379 | */ | |
380 | list_for_each_entry(c_node, &ippdrv->cmd_list, list) { | |
381 | if ((c_node->property.prop_id == prop_id) && | |
382 | (c_node->state == IPP_STATE_STOP)) { | |
383 | DRM_DEBUG_KMS("%s:found cmd[%d]ippdrv[0x%x]\n", | |
384 | __func__, property->cmd, (int)ippdrv); | |
385 | ||
386 | c_node->property = *property; | |
387 | return 0; | |
388 | } | |
389 | } | |
390 | ||
391 | DRM_ERROR("failed to search property.\n"); | |
392 | ||
393 | return -EINVAL; | |
394 | } | |
395 | ||
396 | static struct drm_exynos_ipp_cmd_work *ipp_create_cmd_work(void) | |
397 | { | |
398 | struct drm_exynos_ipp_cmd_work *cmd_work; | |
399 | ||
400 | DRM_DEBUG_KMS("%s\n", __func__); | |
401 | ||
402 | cmd_work = kzalloc(sizeof(*cmd_work), GFP_KERNEL); | |
403 | if (!cmd_work) { | |
404 | DRM_ERROR("failed to alloc cmd_work.\n"); | |
405 | return ERR_PTR(-ENOMEM); | |
406 | } | |
407 | ||
408 | INIT_WORK((struct work_struct *)cmd_work, ipp_sched_cmd); | |
409 | ||
410 | return cmd_work; | |
411 | } | |
412 | ||
413 | static struct drm_exynos_ipp_event_work *ipp_create_event_work(void) | |
414 | { | |
415 | struct drm_exynos_ipp_event_work *event_work; | |
416 | ||
417 | DRM_DEBUG_KMS("%s\n", __func__); | |
418 | ||
419 | event_work = kzalloc(sizeof(*event_work), GFP_KERNEL); | |
420 | if (!event_work) { | |
421 | DRM_ERROR("failed to alloc event_work.\n"); | |
422 | return ERR_PTR(-ENOMEM); | |
423 | } | |
424 | ||
425 | INIT_WORK((struct work_struct *)event_work, ipp_sched_event); | |
426 | ||
427 | return event_work; | |
428 | } | |
429 | ||
430 | int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data, | |
431 | struct drm_file *file) | |
432 | { | |
433 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
434 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
435 | struct device *dev = priv->dev; | |
436 | struct ipp_context *ctx = get_ipp_context(dev); | |
437 | struct drm_exynos_ipp_property *property = data; | |
438 | struct exynos_drm_ippdrv *ippdrv; | |
439 | struct drm_exynos_ipp_cmd_node *c_node; | |
440 | int ret, i; | |
441 | ||
442 | DRM_DEBUG_KMS("%s\n", __func__); | |
443 | ||
444 | if (!ctx) { | |
445 | DRM_ERROR("invalid context.\n"); | |
446 | return -EINVAL; | |
447 | } | |
448 | ||
449 | if (!property) { | |
450 | DRM_ERROR("invalid property parameter.\n"); | |
451 | return -EINVAL; | |
452 | } | |
453 | ||
454 | /* | |
455 | * This is log print for user application property. | |
456 | * user application set various property. | |
457 | */ | |
458 | for_each_ipp_ops(i) | |
459 | ipp_print_property(property, i); | |
460 | ||
461 | /* | |
462 | * set property ioctl generated new prop_id. | |
463 | * but in this case already asigned prop_id using old set property. | |
464 | * e.g PAUSE state. this case supports find current prop_id and use it | |
465 | * instead of allocation. | |
466 | */ | |
467 | if (property->prop_id) { | |
468 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, property->prop_id); | |
469 | return ipp_find_and_set_property(property); | |
470 | } | |
471 | ||
472 | /* find ipp driver using ipp id */ | |
473 | ippdrv = ipp_find_driver(ctx, property); | |
474 | if (IS_ERR_OR_NULL(ippdrv)) { | |
475 | DRM_ERROR("failed to get ipp driver.\n"); | |
476 | return -EINVAL; | |
477 | } | |
478 | ||
479 | /* allocate command node */ | |
480 | c_node = kzalloc(sizeof(*c_node), GFP_KERNEL); | |
481 | if (!c_node) { | |
482 | DRM_ERROR("failed to allocate map node.\n"); | |
483 | return -ENOMEM; | |
484 | } | |
485 | ||
486 | /* create property id */ | |
487 | ret = ipp_create_id(&ctx->prop_idr, &ctx->prop_lock, c_node, | |
488 | &property->prop_id); | |
489 | if (ret) { | |
490 | DRM_ERROR("failed to create id.\n"); | |
491 | goto err_clear; | |
492 | } | |
493 | ||
494 | DRM_DEBUG_KMS("%s:created prop_id[%d]cmd[%d]ippdrv[0x%x]\n", | |
495 | __func__, property->prop_id, property->cmd, (int)ippdrv); | |
496 | ||
497 | /* stored property information and ippdrv in private data */ | |
498 | c_node->priv = priv; | |
499 | c_node->property = *property; | |
500 | c_node->state = IPP_STATE_IDLE; | |
501 | ||
502 | c_node->start_work = ipp_create_cmd_work(); | |
503 | if (IS_ERR_OR_NULL(c_node->start_work)) { | |
504 | DRM_ERROR("failed to create start work.\n"); | |
505 | goto err_clear; | |
506 | } | |
507 | ||
508 | c_node->stop_work = ipp_create_cmd_work(); | |
509 | if (IS_ERR_OR_NULL(c_node->stop_work)) { | |
510 | DRM_ERROR("failed to create stop work.\n"); | |
511 | goto err_free_start; | |
512 | } | |
513 | ||
514 | c_node->event_work = ipp_create_event_work(); | |
515 | if (IS_ERR_OR_NULL(c_node->event_work)) { | |
516 | DRM_ERROR("failed to create event work.\n"); | |
517 | goto err_free_stop; | |
518 | } | |
519 | ||
520 | mutex_init(&c_node->cmd_lock); | |
521 | mutex_init(&c_node->mem_lock); | |
522 | mutex_init(&c_node->event_lock); | |
523 | ||
524 | init_completion(&c_node->start_complete); | |
525 | init_completion(&c_node->stop_complete); | |
526 | ||
527 | for_each_ipp_ops(i) | |
528 | INIT_LIST_HEAD(&c_node->mem_list[i]); | |
529 | ||
530 | INIT_LIST_HEAD(&c_node->event_list); | |
531 | list_splice_init(&priv->event_list, &c_node->event_list); | |
532 | list_add_tail(&c_node->list, &ippdrv->cmd_list); | |
533 | ||
534 | /* make dedicated state without m2m */ | |
535 | if (!ipp_is_m2m_cmd(property->cmd)) | |
536 | ippdrv->dedicated = true; | |
537 | ||
538 | return 0; | |
539 | ||
540 | err_free_stop: | |
541 | kfree(c_node->stop_work); | |
542 | err_free_start: | |
543 | kfree(c_node->start_work); | |
544 | err_clear: | |
545 | kfree(c_node); | |
546 | return ret; | |
547 | } | |
548 | ||
549 | static void ipp_clean_cmd_node(struct drm_exynos_ipp_cmd_node *c_node) | |
550 | { | |
551 | DRM_DEBUG_KMS("%s\n", __func__); | |
552 | ||
553 | /* delete list */ | |
554 | list_del(&c_node->list); | |
555 | ||
556 | /* destroy mutex */ | |
557 | mutex_destroy(&c_node->cmd_lock); | |
558 | mutex_destroy(&c_node->mem_lock); | |
559 | mutex_destroy(&c_node->event_lock); | |
560 | ||
561 | /* free command node */ | |
562 | kfree(c_node->start_work); | |
563 | kfree(c_node->stop_work); | |
564 | kfree(c_node->event_work); | |
565 | kfree(c_node); | |
566 | } | |
567 | ||
568 | static int ipp_check_mem_list(struct drm_exynos_ipp_cmd_node *c_node) | |
569 | { | |
570 | struct drm_exynos_ipp_property *property = &c_node->property; | |
571 | struct drm_exynos_ipp_mem_node *m_node; | |
572 | struct list_head *head; | |
573 | int ret, i, count[EXYNOS_DRM_OPS_MAX] = { 0, }; | |
574 | ||
575 | DRM_DEBUG_KMS("%s\n", __func__); | |
576 | ||
577 | mutex_lock(&c_node->mem_lock); | |
578 | ||
579 | for_each_ipp_ops(i) { | |
580 | /* source/destination memory list */ | |
581 | head = &c_node->mem_list[i]; | |
582 | ||
583 | if (list_empty(head)) { | |
584 | DRM_DEBUG_KMS("%s:%s memory empty.\n", __func__, | |
585 | i ? "dst" : "src"); | |
586 | continue; | |
587 | } | |
588 | ||
589 | /* find memory node entry */ | |
590 | list_for_each_entry(m_node, head, list) { | |
591 | DRM_DEBUG_KMS("%s:%s,count[%d]m_node[0x%x]\n", __func__, | |
592 | i ? "dst" : "src", count[i], (int)m_node); | |
593 | count[i]++; | |
594 | } | |
595 | } | |
596 | ||
597 | DRM_DEBUG_KMS("%s:min[%d]max[%d]\n", __func__, | |
598 | min(count[EXYNOS_DRM_OPS_SRC], count[EXYNOS_DRM_OPS_DST]), | |
599 | max(count[EXYNOS_DRM_OPS_SRC], count[EXYNOS_DRM_OPS_DST])); | |
600 | ||
601 | /* | |
602 | * M2M operations should be need paired memory address. | |
603 | * so, need to check minimum count about src, dst. | |
604 | * other case not use paired memory, so use maximum count | |
605 | */ | |
606 | if (ipp_is_m2m_cmd(property->cmd)) | |
607 | ret = min(count[EXYNOS_DRM_OPS_SRC], | |
608 | count[EXYNOS_DRM_OPS_DST]); | |
609 | else | |
610 | ret = max(count[EXYNOS_DRM_OPS_SRC], | |
611 | count[EXYNOS_DRM_OPS_DST]); | |
612 | ||
613 | mutex_unlock(&c_node->mem_lock); | |
614 | ||
615 | return ret; | |
616 | } | |
617 | ||
618 | static struct drm_exynos_ipp_mem_node | |
619 | *ipp_find_mem_node(struct drm_exynos_ipp_cmd_node *c_node, | |
620 | struct drm_exynos_ipp_queue_buf *qbuf) | |
621 | { | |
622 | struct drm_exynos_ipp_mem_node *m_node; | |
623 | struct list_head *head; | |
624 | int count = 0; | |
625 | ||
626 | DRM_DEBUG_KMS("%s:buf_id[%d]\n", __func__, qbuf->buf_id); | |
627 | ||
628 | /* source/destination memory list */ | |
629 | head = &c_node->mem_list[qbuf->ops_id]; | |
630 | ||
631 | /* find memory node from memory list */ | |
632 | list_for_each_entry(m_node, head, list) { | |
633 | DRM_DEBUG_KMS("%s:count[%d]m_node[0x%x]\n", | |
634 | __func__, count++, (int)m_node); | |
635 | ||
636 | /* compare buffer id */ | |
637 | if (m_node->buf_id == qbuf->buf_id) | |
638 | return m_node; | |
639 | } | |
640 | ||
641 | return NULL; | |
642 | } | |
643 | ||
644 | static int ipp_set_mem_node(struct exynos_drm_ippdrv *ippdrv, | |
645 | struct drm_exynos_ipp_cmd_node *c_node, | |
646 | struct drm_exynos_ipp_mem_node *m_node) | |
647 | { | |
648 | struct exynos_drm_ipp_ops *ops = NULL; | |
649 | int ret = 0; | |
650 | ||
651 | DRM_DEBUG_KMS("%s:node[0x%x]\n", __func__, (int)m_node); | |
652 | ||
653 | if (!m_node) { | |
654 | DRM_ERROR("invalid queue node.\n"); | |
655 | return -EFAULT; | |
656 | } | |
657 | ||
658 | mutex_lock(&c_node->mem_lock); | |
659 | ||
660 | DRM_DEBUG_KMS("%s:ops_id[%d]\n", __func__, m_node->ops_id); | |
661 | ||
662 | /* get operations callback */ | |
663 | ops = ippdrv->ops[m_node->ops_id]; | |
664 | if (!ops) { | |
665 | DRM_ERROR("not support ops.\n"); | |
666 | ret = -EFAULT; | |
667 | goto err_unlock; | |
668 | } | |
669 | ||
670 | /* set address and enable irq */ | |
671 | if (ops->set_addr) { | |
672 | ret = ops->set_addr(ippdrv->dev, &m_node->buf_info, | |
673 | m_node->buf_id, IPP_BUF_ENQUEUE); | |
674 | if (ret) { | |
675 | DRM_ERROR("failed to set addr.\n"); | |
676 | goto err_unlock; | |
677 | } | |
678 | } | |
679 | ||
680 | err_unlock: | |
681 | mutex_unlock(&c_node->mem_lock); | |
682 | return ret; | |
683 | } | |
684 | ||
685 | static struct drm_exynos_ipp_mem_node | |
686 | *ipp_get_mem_node(struct drm_device *drm_dev, | |
687 | struct drm_file *file, | |
688 | struct drm_exynos_ipp_cmd_node *c_node, | |
689 | struct drm_exynos_ipp_queue_buf *qbuf) | |
690 | { | |
691 | struct drm_exynos_ipp_mem_node *m_node; | |
692 | struct drm_exynos_ipp_buf_info buf_info; | |
693 | void *addr; | |
694 | int i; | |
695 | ||
696 | DRM_DEBUG_KMS("%s\n", __func__); | |
697 | ||
698 | mutex_lock(&c_node->mem_lock); | |
699 | ||
700 | m_node = kzalloc(sizeof(*m_node), GFP_KERNEL); | |
701 | if (!m_node) { | |
702 | DRM_ERROR("failed to allocate queue node.\n"); | |
703 | goto err_unlock; | |
704 | } | |
705 | ||
706 | /* clear base address for error handling */ | |
707 | memset(&buf_info, 0x0, sizeof(buf_info)); | |
708 | ||
709 | /* operations, buffer id */ | |
710 | m_node->ops_id = qbuf->ops_id; | |
711 | m_node->prop_id = qbuf->prop_id; | |
712 | m_node->buf_id = qbuf->buf_id; | |
713 | ||
714 | DRM_DEBUG_KMS("%s:m_node[0x%x]ops_id[%d]\n", __func__, | |
715 | (int)m_node, qbuf->ops_id); | |
716 | DRM_DEBUG_KMS("%s:prop_id[%d]buf_id[%d]\n", __func__, | |
717 | qbuf->prop_id, m_node->buf_id); | |
718 | ||
719 | for_each_ipp_planar(i) { | |
720 | DRM_DEBUG_KMS("%s:i[%d]handle[0x%x]\n", __func__, | |
721 | i, qbuf->handle[i]); | |
722 | ||
723 | /* get dma address by handle */ | |
724 | if (qbuf->handle[i]) { | |
725 | addr = exynos_drm_gem_get_dma_addr(drm_dev, | |
726 | qbuf->handle[i], file); | |
727 | if (IS_ERR(addr)) { | |
728 | DRM_ERROR("failed to get addr.\n"); | |
729 | goto err_clear; | |
730 | } | |
731 | ||
732 | buf_info.handles[i] = qbuf->handle[i]; | |
733 | buf_info.base[i] = *(dma_addr_t *) addr; | |
734 | DRM_DEBUG_KMS("%s:i[%d]base[0x%x]hd[0x%x]\n", | |
735 | __func__, i, buf_info.base[i], | |
736 | (int)buf_info.handles[i]); | |
737 | } | |
738 | } | |
739 | ||
740 | m_node->filp = file; | |
741 | m_node->buf_info = buf_info; | |
742 | list_add_tail(&m_node->list, &c_node->mem_list[qbuf->ops_id]); | |
743 | ||
744 | mutex_unlock(&c_node->mem_lock); | |
745 | return m_node; | |
746 | ||
747 | err_clear: | |
748 | kfree(m_node); | |
749 | err_unlock: | |
750 | mutex_unlock(&c_node->mem_lock); | |
751 | return ERR_PTR(-EFAULT); | |
752 | } | |
753 | ||
754 | static int ipp_put_mem_node(struct drm_device *drm_dev, | |
755 | struct drm_exynos_ipp_cmd_node *c_node, | |
756 | struct drm_exynos_ipp_mem_node *m_node) | |
757 | { | |
758 | int i; | |
759 | ||
760 | DRM_DEBUG_KMS("%s:node[0x%x]\n", __func__, (int)m_node); | |
761 | ||
762 | if (!m_node) { | |
763 | DRM_ERROR("invalid dequeue node.\n"); | |
764 | return -EFAULT; | |
765 | } | |
766 | ||
767 | if (list_empty(&m_node->list)) { | |
768 | DRM_ERROR("empty memory node.\n"); | |
769 | return -ENOMEM; | |
770 | } | |
771 | ||
772 | mutex_lock(&c_node->mem_lock); | |
773 | ||
774 | DRM_DEBUG_KMS("%s:ops_id[%d]\n", __func__, m_node->ops_id); | |
775 | ||
776 | /* put gem buffer */ | |
777 | for_each_ipp_planar(i) { | |
778 | unsigned long handle = m_node->buf_info.handles[i]; | |
779 | if (handle) | |
780 | exynos_drm_gem_put_dma_addr(drm_dev, handle, | |
781 | m_node->filp); | |
782 | } | |
783 | ||
784 | /* delete list in queue */ | |
785 | list_del(&m_node->list); | |
786 | kfree(m_node); | |
787 | ||
788 | mutex_unlock(&c_node->mem_lock); | |
789 | ||
790 | return 0; | |
791 | } | |
792 | ||
793 | static void ipp_free_event(struct drm_pending_event *event) | |
794 | { | |
795 | kfree(event); | |
796 | } | |
797 | ||
798 | static int ipp_get_event(struct drm_device *drm_dev, | |
799 | struct drm_file *file, | |
800 | struct drm_exynos_ipp_cmd_node *c_node, | |
801 | struct drm_exynos_ipp_queue_buf *qbuf) | |
802 | { | |
803 | struct drm_exynos_ipp_send_event *e; | |
804 | unsigned long flags; | |
805 | ||
806 | DRM_DEBUG_KMS("%s:ops_id[%d]buf_id[%d]\n", __func__, | |
807 | qbuf->ops_id, qbuf->buf_id); | |
808 | ||
809 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
810 | ||
811 | if (!e) { | |
812 | DRM_ERROR("failed to allocate event.\n"); | |
813 | spin_lock_irqsave(&drm_dev->event_lock, flags); | |
814 | file->event_space += sizeof(e->event); | |
815 | spin_unlock_irqrestore(&drm_dev->event_lock, flags); | |
816 | return -ENOMEM; | |
817 | } | |
818 | ||
819 | /* make event */ | |
820 | e->event.base.type = DRM_EXYNOS_IPP_EVENT; | |
821 | e->event.base.length = sizeof(e->event); | |
822 | e->event.user_data = qbuf->user_data; | |
823 | e->event.prop_id = qbuf->prop_id; | |
824 | e->event.buf_id[EXYNOS_DRM_OPS_DST] = qbuf->buf_id; | |
825 | e->base.event = &e->event.base; | |
826 | e->base.file_priv = file; | |
827 | e->base.destroy = ipp_free_event; | |
828 | list_add_tail(&e->base.link, &c_node->event_list); | |
829 | ||
830 | return 0; | |
831 | } | |
832 | ||
833 | static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node, | |
834 | struct drm_exynos_ipp_queue_buf *qbuf) | |
835 | { | |
836 | struct drm_exynos_ipp_send_event *e, *te; | |
837 | int count = 0; | |
838 | ||
839 | DRM_DEBUG_KMS("%s\n", __func__); | |
840 | ||
841 | if (list_empty(&c_node->event_list)) { | |
842 | DRM_DEBUG_KMS("%s:event_list is empty.\n", __func__); | |
843 | return; | |
844 | } | |
845 | ||
846 | list_for_each_entry_safe(e, te, &c_node->event_list, base.link) { | |
847 | DRM_DEBUG_KMS("%s:count[%d]e[0x%x]\n", | |
848 | __func__, count++, (int)e); | |
849 | ||
850 | /* | |
851 | * quf == NULL condition means all event deletion. | |
852 | * stop operations want to delete all event list. | |
853 | * another case delete only same buf id. | |
854 | */ | |
855 | if (!qbuf) { | |
856 | /* delete list */ | |
857 | list_del(&e->base.link); | |
858 | kfree(e); | |
859 | } | |
860 | ||
861 | /* compare buffer id */ | |
862 | if (qbuf && (qbuf->buf_id == | |
863 | e->event.buf_id[EXYNOS_DRM_OPS_DST])) { | |
864 | /* delete list */ | |
865 | list_del(&e->base.link); | |
866 | kfree(e); | |
867 | return; | |
868 | } | |
869 | } | |
870 | } | |
871 | ||
0bc4a0aa | 872 | static void ipp_handle_cmd_work(struct device *dev, |
cb471f14 EK |
873 | struct exynos_drm_ippdrv *ippdrv, |
874 | struct drm_exynos_ipp_cmd_work *cmd_work, | |
875 | struct drm_exynos_ipp_cmd_node *c_node) | |
876 | { | |
877 | struct ipp_context *ctx = get_ipp_context(dev); | |
878 | ||
879 | cmd_work->ippdrv = ippdrv; | |
880 | cmd_work->c_node = c_node; | |
881 | queue_work(ctx->cmd_workq, (struct work_struct *)cmd_work); | |
882 | } | |
883 | ||
884 | static int ipp_queue_buf_with_run(struct device *dev, | |
885 | struct drm_exynos_ipp_cmd_node *c_node, | |
886 | struct drm_exynos_ipp_mem_node *m_node, | |
887 | struct drm_exynos_ipp_queue_buf *qbuf) | |
888 | { | |
889 | struct exynos_drm_ippdrv *ippdrv; | |
890 | struct drm_exynos_ipp_property *property; | |
891 | struct exynos_drm_ipp_ops *ops; | |
892 | int ret; | |
893 | ||
894 | DRM_DEBUG_KMS("%s\n", __func__); | |
895 | ||
896 | ippdrv = ipp_find_drv_by_handle(qbuf->prop_id); | |
897 | if (IS_ERR_OR_NULL(ippdrv)) { | |
898 | DRM_ERROR("failed to get ipp driver.\n"); | |
899 | return -EFAULT; | |
900 | } | |
901 | ||
902 | ops = ippdrv->ops[qbuf->ops_id]; | |
903 | if (!ops) { | |
904 | DRM_ERROR("failed to get ops.\n"); | |
905 | return -EFAULT; | |
906 | } | |
907 | ||
908 | property = &c_node->property; | |
909 | ||
910 | if (c_node->state != IPP_STATE_START) { | |
911 | DRM_DEBUG_KMS("%s:bypass for invalid state.\n" , __func__); | |
912 | return 0; | |
913 | } | |
914 | ||
915 | if (!ipp_check_mem_list(c_node)) { | |
916 | DRM_DEBUG_KMS("%s:empty memory.\n", __func__); | |
917 | return 0; | |
918 | } | |
919 | ||
920 | /* | |
921 | * If set destination buffer and enabled clock, | |
922 | * then m2m operations need start operations at queue_buf | |
923 | */ | |
924 | if (ipp_is_m2m_cmd(property->cmd)) { | |
925 | struct drm_exynos_ipp_cmd_work *cmd_work = c_node->start_work; | |
926 | ||
927 | cmd_work->ctrl = IPP_CTRL_PLAY; | |
928 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
929 | } else { | |
930 | ret = ipp_set_mem_node(ippdrv, c_node, m_node); | |
931 | if (ret) { | |
932 | DRM_ERROR("failed to set m node.\n"); | |
933 | return ret; | |
934 | } | |
935 | } | |
936 | ||
937 | return 0; | |
938 | } | |
939 | ||
940 | static void ipp_clean_queue_buf(struct drm_device *drm_dev, | |
941 | struct drm_exynos_ipp_cmd_node *c_node, | |
942 | struct drm_exynos_ipp_queue_buf *qbuf) | |
943 | { | |
944 | struct drm_exynos_ipp_mem_node *m_node, *tm_node; | |
945 | ||
946 | DRM_DEBUG_KMS("%s\n", __func__); | |
947 | ||
948 | if (!list_empty(&c_node->mem_list[qbuf->ops_id])) { | |
949 | /* delete list */ | |
950 | list_for_each_entry_safe(m_node, tm_node, | |
951 | &c_node->mem_list[qbuf->ops_id], list) { | |
952 | if (m_node->buf_id == qbuf->buf_id && | |
953 | m_node->ops_id == qbuf->ops_id) | |
954 | ipp_put_mem_node(drm_dev, c_node, m_node); | |
955 | } | |
956 | } | |
957 | } | |
958 | ||
959 | int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev, void *data, | |
960 | struct drm_file *file) | |
961 | { | |
962 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
963 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
964 | struct device *dev = priv->dev; | |
965 | struct ipp_context *ctx = get_ipp_context(dev); | |
966 | struct drm_exynos_ipp_queue_buf *qbuf = data; | |
967 | struct drm_exynos_ipp_cmd_node *c_node; | |
968 | struct drm_exynos_ipp_mem_node *m_node; | |
969 | int ret; | |
970 | ||
971 | DRM_DEBUG_KMS("%s\n", __func__); | |
972 | ||
973 | if (!qbuf) { | |
974 | DRM_ERROR("invalid buf parameter.\n"); | |
975 | return -EINVAL; | |
976 | } | |
977 | ||
978 | if (qbuf->ops_id >= EXYNOS_DRM_OPS_MAX) { | |
979 | DRM_ERROR("invalid ops parameter.\n"); | |
980 | return -EINVAL; | |
981 | } | |
982 | ||
983 | DRM_DEBUG_KMS("%s:prop_id[%d]ops_id[%s]buf_id[%d]buf_type[%d]\n", | |
984 | __func__, qbuf->prop_id, qbuf->ops_id ? "dst" : "src", | |
985 | qbuf->buf_id, qbuf->buf_type); | |
986 | ||
987 | /* find command node */ | |
988 | c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, | |
989 | qbuf->prop_id); | |
990 | if (!c_node) { | |
991 | DRM_ERROR("failed to get command node.\n"); | |
992 | return -EFAULT; | |
993 | } | |
994 | ||
995 | /* buffer control */ | |
996 | switch (qbuf->buf_type) { | |
997 | case IPP_BUF_ENQUEUE: | |
998 | /* get memory node */ | |
999 | m_node = ipp_get_mem_node(drm_dev, file, c_node, qbuf); | |
1000 | if (IS_ERR(m_node)) { | |
1001 | DRM_ERROR("failed to get m_node.\n"); | |
1002 | return PTR_ERR(m_node); | |
1003 | } | |
1004 | ||
1005 | /* | |
1006 | * first step get event for destination buffer. | |
1007 | * and second step when M2M case run with destination buffer | |
1008 | * if needed. | |
1009 | */ | |
1010 | if (qbuf->ops_id == EXYNOS_DRM_OPS_DST) { | |
1011 | /* get event for destination buffer */ | |
1012 | ret = ipp_get_event(drm_dev, file, c_node, qbuf); | |
1013 | if (ret) { | |
1014 | DRM_ERROR("failed to get event.\n"); | |
1015 | goto err_clean_node; | |
1016 | } | |
1017 | ||
1018 | /* | |
1019 | * M2M case run play control for streaming feature. | |
1020 | * other case set address and waiting. | |
1021 | */ | |
1022 | ret = ipp_queue_buf_with_run(dev, c_node, m_node, qbuf); | |
1023 | if (ret) { | |
1024 | DRM_ERROR("failed to run command.\n"); | |
1025 | goto err_clean_node; | |
1026 | } | |
1027 | } | |
1028 | break; | |
1029 | case IPP_BUF_DEQUEUE: | |
1030 | mutex_lock(&c_node->cmd_lock); | |
1031 | ||
1032 | /* put event for destination buffer */ | |
1033 | if (qbuf->ops_id == EXYNOS_DRM_OPS_DST) | |
1034 | ipp_put_event(c_node, qbuf); | |
1035 | ||
1036 | ipp_clean_queue_buf(drm_dev, c_node, qbuf); | |
1037 | ||
1038 | mutex_unlock(&c_node->cmd_lock); | |
1039 | break; | |
1040 | default: | |
1041 | DRM_ERROR("invalid buffer control.\n"); | |
1042 | return -EINVAL; | |
1043 | } | |
1044 | ||
1045 | return 0; | |
1046 | ||
1047 | err_clean_node: | |
1048 | DRM_ERROR("clean memory nodes.\n"); | |
1049 | ||
1050 | ipp_clean_queue_buf(drm_dev, c_node, qbuf); | |
1051 | return ret; | |
1052 | } | |
1053 | ||
1054 | static bool exynos_drm_ipp_check_valid(struct device *dev, | |
1055 | enum drm_exynos_ipp_ctrl ctrl, enum drm_exynos_ipp_state state) | |
1056 | { | |
1057 | DRM_DEBUG_KMS("%s\n", __func__); | |
1058 | ||
1059 | if (ctrl != IPP_CTRL_PLAY) { | |
1060 | if (pm_runtime_suspended(dev)) { | |
1061 | DRM_ERROR("pm:runtime_suspended.\n"); | |
1062 | goto err_status; | |
1063 | } | |
1064 | } | |
1065 | ||
1066 | switch (ctrl) { | |
1067 | case IPP_CTRL_PLAY: | |
1068 | if (state != IPP_STATE_IDLE) | |
1069 | goto err_status; | |
1070 | break; | |
1071 | case IPP_CTRL_STOP: | |
1072 | if (state == IPP_STATE_STOP) | |
1073 | goto err_status; | |
1074 | break; | |
1075 | case IPP_CTRL_PAUSE: | |
1076 | if (state != IPP_STATE_START) | |
1077 | goto err_status; | |
1078 | break; | |
1079 | case IPP_CTRL_RESUME: | |
1080 | if (state != IPP_STATE_STOP) | |
1081 | goto err_status; | |
1082 | break; | |
1083 | default: | |
1084 | DRM_ERROR("invalid state.\n"); | |
1085 | goto err_status; | |
1086 | break; | |
1087 | } | |
1088 | ||
1089 | return true; | |
1090 | ||
1091 | err_status: | |
1092 | DRM_ERROR("invalid status:ctrl[%d]state[%d]\n", ctrl, state); | |
1093 | return false; | |
1094 | } | |
1095 | ||
1096 | int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev, void *data, | |
1097 | struct drm_file *file) | |
1098 | { | |
1099 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
1100 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
1101 | struct exynos_drm_ippdrv *ippdrv = NULL; | |
1102 | struct device *dev = priv->dev; | |
1103 | struct ipp_context *ctx = get_ipp_context(dev); | |
1104 | struct drm_exynos_ipp_cmd_ctrl *cmd_ctrl = data; | |
1105 | struct drm_exynos_ipp_cmd_work *cmd_work; | |
1106 | struct drm_exynos_ipp_cmd_node *c_node; | |
1107 | ||
1108 | DRM_DEBUG_KMS("%s\n", __func__); | |
1109 | ||
1110 | if (!ctx) { | |
1111 | DRM_ERROR("invalid context.\n"); | |
1112 | return -EINVAL; | |
1113 | } | |
1114 | ||
1115 | if (!cmd_ctrl) { | |
1116 | DRM_ERROR("invalid control parameter.\n"); | |
1117 | return -EINVAL; | |
1118 | } | |
1119 | ||
1120 | DRM_DEBUG_KMS("%s:ctrl[%d]prop_id[%d]\n", __func__, | |
1121 | cmd_ctrl->ctrl, cmd_ctrl->prop_id); | |
1122 | ||
1123 | ippdrv = ipp_find_drv_by_handle(cmd_ctrl->prop_id); | |
1124 | if (IS_ERR(ippdrv)) { | |
1125 | DRM_ERROR("failed to get ipp driver.\n"); | |
1126 | return PTR_ERR(ippdrv); | |
1127 | } | |
1128 | ||
1129 | c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, | |
1130 | cmd_ctrl->prop_id); | |
1131 | if (!c_node) { | |
1132 | DRM_ERROR("invalid command node list.\n"); | |
1133 | return -EINVAL; | |
1134 | } | |
1135 | ||
1136 | if (!exynos_drm_ipp_check_valid(ippdrv->dev, cmd_ctrl->ctrl, | |
1137 | c_node->state)) { | |
1138 | DRM_ERROR("invalid state.\n"); | |
1139 | return -EINVAL; | |
1140 | } | |
1141 | ||
1142 | switch (cmd_ctrl->ctrl) { | |
1143 | case IPP_CTRL_PLAY: | |
1144 | if (pm_runtime_suspended(ippdrv->dev)) | |
1145 | pm_runtime_get_sync(ippdrv->dev); | |
1146 | c_node->state = IPP_STATE_START; | |
1147 | ||
1148 | cmd_work = c_node->start_work; | |
1149 | cmd_work->ctrl = cmd_ctrl->ctrl; | |
1150 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
1151 | c_node->state = IPP_STATE_START; | |
1152 | break; | |
1153 | case IPP_CTRL_STOP: | |
1154 | cmd_work = c_node->stop_work; | |
1155 | cmd_work->ctrl = cmd_ctrl->ctrl; | |
1156 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
1157 | ||
1158 | if (!wait_for_completion_timeout(&c_node->stop_complete, | |
1159 | msecs_to_jiffies(300))) { | |
1160 | DRM_ERROR("timeout stop:prop_id[%d]\n", | |
1161 | c_node->property.prop_id); | |
1162 | } | |
1163 | ||
1164 | c_node->state = IPP_STATE_STOP; | |
1165 | ippdrv->dedicated = false; | |
1166 | ipp_clean_cmd_node(c_node); | |
1167 | ||
1168 | if (list_empty(&ippdrv->cmd_list)) | |
1169 | pm_runtime_put_sync(ippdrv->dev); | |
1170 | break; | |
1171 | case IPP_CTRL_PAUSE: | |
1172 | cmd_work = c_node->stop_work; | |
1173 | cmd_work->ctrl = cmd_ctrl->ctrl; | |
1174 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
1175 | ||
1176 | if (!wait_for_completion_timeout(&c_node->stop_complete, | |
1177 | msecs_to_jiffies(200))) { | |
1178 | DRM_ERROR("timeout stop:prop_id[%d]\n", | |
1179 | c_node->property.prop_id); | |
1180 | } | |
1181 | ||
1182 | c_node->state = IPP_STATE_STOP; | |
1183 | break; | |
1184 | case IPP_CTRL_RESUME: | |
1185 | c_node->state = IPP_STATE_START; | |
1186 | cmd_work = c_node->start_work; | |
1187 | cmd_work->ctrl = cmd_ctrl->ctrl; | |
1188 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
1189 | break; | |
1190 | default: | |
1191 | DRM_ERROR("could not support this state currently.\n"); | |
1192 | return -EINVAL; | |
1193 | } | |
1194 | ||
1195 | DRM_DEBUG_KMS("%s:done ctrl[%d]prop_id[%d]\n", __func__, | |
1196 | cmd_ctrl->ctrl, cmd_ctrl->prop_id); | |
1197 | ||
1198 | return 0; | |
1199 | } | |
1200 | ||
1201 | int exynos_drm_ippnb_register(struct notifier_block *nb) | |
1202 | { | |
1203 | return blocking_notifier_chain_register( | |
1204 | &exynos_drm_ippnb_list, nb); | |
1205 | } | |
1206 | ||
1207 | int exynos_drm_ippnb_unregister(struct notifier_block *nb) | |
1208 | { | |
1209 | return blocking_notifier_chain_unregister( | |
1210 | &exynos_drm_ippnb_list, nb); | |
1211 | } | |
1212 | ||
1213 | int exynos_drm_ippnb_send_event(unsigned long val, void *v) | |
1214 | { | |
1215 | return blocking_notifier_call_chain( | |
1216 | &exynos_drm_ippnb_list, val, v); | |
1217 | } | |
1218 | ||
1219 | static int ipp_set_property(struct exynos_drm_ippdrv *ippdrv, | |
1220 | struct drm_exynos_ipp_property *property) | |
1221 | { | |
1222 | struct exynos_drm_ipp_ops *ops = NULL; | |
1223 | bool swap = false; | |
1224 | int ret, i; | |
1225 | ||
1226 | if (!property) { | |
1227 | DRM_ERROR("invalid property parameter.\n"); | |
1228 | return -EINVAL; | |
1229 | } | |
1230 | ||
1231 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, property->prop_id); | |
1232 | ||
1233 | /* reset h/w block */ | |
1234 | if (ippdrv->reset && | |
1235 | ippdrv->reset(ippdrv->dev)) { | |
1236 | DRM_ERROR("failed to reset.\n"); | |
1237 | return -EINVAL; | |
1238 | } | |
1239 | ||
1240 | /* set source,destination operations */ | |
1241 | for_each_ipp_ops(i) { | |
1242 | struct drm_exynos_ipp_config *config = | |
1243 | &property->config[i]; | |
1244 | ||
1245 | ops = ippdrv->ops[i]; | |
1246 | if (!ops || !config) { | |
1247 | DRM_ERROR("not support ops and config.\n"); | |
1248 | return -EINVAL; | |
1249 | } | |
1250 | ||
1251 | /* set format */ | |
1252 | if (ops->set_fmt) { | |
1253 | ret = ops->set_fmt(ippdrv->dev, config->fmt); | |
1254 | if (ret) { | |
1255 | DRM_ERROR("not support format.\n"); | |
1256 | return ret; | |
1257 | } | |
1258 | } | |
1259 | ||
1260 | /* set transform for rotation, flip */ | |
1261 | if (ops->set_transf) { | |
1262 | ret = ops->set_transf(ippdrv->dev, config->degree, | |
1263 | config->flip, &swap); | |
1264 | if (ret) { | |
1265 | DRM_ERROR("not support tranf.\n"); | |
1266 | return -EINVAL; | |
1267 | } | |
1268 | } | |
1269 | ||
1270 | /* set size */ | |
1271 | if (ops->set_size) { | |
1272 | ret = ops->set_size(ippdrv->dev, swap, &config->pos, | |
1273 | &config->sz); | |
1274 | if (ret) { | |
1275 | DRM_ERROR("not support size.\n"); | |
1276 | return ret; | |
1277 | } | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | return 0; | |
1282 | } | |
1283 | ||
1284 | static int ipp_start_property(struct exynos_drm_ippdrv *ippdrv, | |
1285 | struct drm_exynos_ipp_cmd_node *c_node) | |
1286 | { | |
1287 | struct drm_exynos_ipp_mem_node *m_node; | |
1288 | struct drm_exynos_ipp_property *property = &c_node->property; | |
1289 | struct list_head *head; | |
1290 | int ret, i; | |
1291 | ||
1292 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, property->prop_id); | |
1293 | ||
1294 | /* store command info in ippdrv */ | |
7259c3d6 | 1295 | ippdrv->c_node = c_node; |
cb471f14 EK |
1296 | |
1297 | if (!ipp_check_mem_list(c_node)) { | |
1298 | DRM_DEBUG_KMS("%s:empty memory.\n", __func__); | |
1299 | return -ENOMEM; | |
1300 | } | |
1301 | ||
1302 | /* set current property in ippdrv */ | |
1303 | ret = ipp_set_property(ippdrv, property); | |
1304 | if (ret) { | |
1305 | DRM_ERROR("failed to set property.\n"); | |
7259c3d6 | 1306 | ippdrv->c_node = NULL; |
cb471f14 EK |
1307 | return ret; |
1308 | } | |
1309 | ||
1310 | /* check command */ | |
1311 | switch (property->cmd) { | |
1312 | case IPP_CMD_M2M: | |
1313 | for_each_ipp_ops(i) { | |
1314 | /* source/destination memory list */ | |
1315 | head = &c_node->mem_list[i]; | |
1316 | ||
1317 | m_node = list_first_entry(head, | |
1318 | struct drm_exynos_ipp_mem_node, list); | |
1319 | if (!m_node) { | |
1320 | DRM_ERROR("failed to get node.\n"); | |
1321 | ret = -EFAULT; | |
1322 | return ret; | |
1323 | } | |
1324 | ||
1325 | DRM_DEBUG_KMS("%s:m_node[0x%x]\n", | |
1326 | __func__, (int)m_node); | |
1327 | ||
1328 | ret = ipp_set_mem_node(ippdrv, c_node, m_node); | |
1329 | if (ret) { | |
1330 | DRM_ERROR("failed to set m node.\n"); | |
1331 | return ret; | |
1332 | } | |
1333 | } | |
1334 | break; | |
1335 | case IPP_CMD_WB: | |
1336 | /* destination memory list */ | |
1337 | head = &c_node->mem_list[EXYNOS_DRM_OPS_DST]; | |
1338 | ||
1339 | list_for_each_entry(m_node, head, list) { | |
1340 | ret = ipp_set_mem_node(ippdrv, c_node, m_node); | |
1341 | if (ret) { | |
1342 | DRM_ERROR("failed to set m node.\n"); | |
1343 | return ret; | |
1344 | } | |
1345 | } | |
1346 | break; | |
1347 | case IPP_CMD_OUTPUT: | |
1348 | /* source memory list */ | |
1349 | head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC]; | |
1350 | ||
1351 | list_for_each_entry(m_node, head, list) { | |
1352 | ret = ipp_set_mem_node(ippdrv, c_node, m_node); | |
1353 | if (ret) { | |
1354 | DRM_ERROR("failed to set m node.\n"); | |
1355 | return ret; | |
1356 | } | |
1357 | } | |
1358 | break; | |
1359 | default: | |
1360 | DRM_ERROR("invalid operations.\n"); | |
1361 | return -EINVAL; | |
1362 | } | |
1363 | ||
1364 | DRM_DEBUG_KMS("%s:cmd[%d]\n", __func__, property->cmd); | |
1365 | ||
1366 | /* start operations */ | |
1367 | if (ippdrv->start) { | |
1368 | ret = ippdrv->start(ippdrv->dev, property->cmd); | |
1369 | if (ret) { | |
1370 | DRM_ERROR("failed to start ops.\n"); | |
1371 | return ret; | |
1372 | } | |
1373 | } | |
1374 | ||
1375 | return 0; | |
1376 | } | |
1377 | ||
1378 | static int ipp_stop_property(struct drm_device *drm_dev, | |
1379 | struct exynos_drm_ippdrv *ippdrv, | |
1380 | struct drm_exynos_ipp_cmd_node *c_node) | |
1381 | { | |
1382 | struct drm_exynos_ipp_mem_node *m_node, *tm_node; | |
1383 | struct drm_exynos_ipp_property *property = &c_node->property; | |
1384 | struct list_head *head; | |
1385 | int ret = 0, i; | |
1386 | ||
1387 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, property->prop_id); | |
1388 | ||
1389 | /* put event */ | |
1390 | ipp_put_event(c_node, NULL); | |
1391 | ||
1392 | /* check command */ | |
1393 | switch (property->cmd) { | |
1394 | case IPP_CMD_M2M: | |
1395 | for_each_ipp_ops(i) { | |
1396 | /* source/destination memory list */ | |
1397 | head = &c_node->mem_list[i]; | |
1398 | ||
1399 | if (list_empty(head)) { | |
1400 | DRM_DEBUG_KMS("%s:mem_list is empty.\n", | |
1401 | __func__); | |
1402 | break; | |
1403 | } | |
1404 | ||
1405 | list_for_each_entry_safe(m_node, tm_node, | |
1406 | head, list) { | |
1407 | ret = ipp_put_mem_node(drm_dev, c_node, | |
1408 | m_node); | |
1409 | if (ret) { | |
1410 | DRM_ERROR("failed to put m_node.\n"); | |
1411 | goto err_clear; | |
1412 | } | |
1413 | } | |
1414 | } | |
1415 | break; | |
1416 | case IPP_CMD_WB: | |
1417 | /* destination memory list */ | |
1418 | head = &c_node->mem_list[EXYNOS_DRM_OPS_DST]; | |
1419 | ||
1420 | if (list_empty(head)) { | |
1421 | DRM_DEBUG_KMS("%s:mem_list is empty.\n", __func__); | |
1422 | break; | |
1423 | } | |
1424 | ||
1425 | list_for_each_entry_safe(m_node, tm_node, head, list) { | |
1426 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1427 | if (ret) { | |
1428 | DRM_ERROR("failed to put m_node.\n"); | |
1429 | goto err_clear; | |
1430 | } | |
1431 | } | |
1432 | break; | |
1433 | case IPP_CMD_OUTPUT: | |
1434 | /* source memory list */ | |
1435 | head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC]; | |
1436 | ||
1437 | if (list_empty(head)) { | |
1438 | DRM_DEBUG_KMS("%s:mem_list is empty.\n", __func__); | |
1439 | break; | |
1440 | } | |
1441 | ||
1442 | list_for_each_entry_safe(m_node, tm_node, head, list) { | |
1443 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1444 | if (ret) { | |
1445 | DRM_ERROR("failed to put m_node.\n"); | |
1446 | goto err_clear; | |
1447 | } | |
1448 | } | |
1449 | break; | |
1450 | default: | |
1451 | DRM_ERROR("invalid operations.\n"); | |
1452 | ret = -EINVAL; | |
1453 | goto err_clear; | |
1454 | } | |
1455 | ||
1456 | err_clear: | |
1457 | /* stop operations */ | |
1458 | if (ippdrv->stop) | |
1459 | ippdrv->stop(ippdrv->dev, property->cmd); | |
1460 | ||
1461 | return ret; | |
1462 | } | |
1463 | ||
1464 | void ipp_sched_cmd(struct work_struct *work) | |
1465 | { | |
1466 | struct drm_exynos_ipp_cmd_work *cmd_work = | |
1467 | (struct drm_exynos_ipp_cmd_work *)work; | |
1468 | struct exynos_drm_ippdrv *ippdrv; | |
1469 | struct drm_exynos_ipp_cmd_node *c_node; | |
1470 | struct drm_exynos_ipp_property *property; | |
1471 | int ret; | |
1472 | ||
1473 | DRM_DEBUG_KMS("%s\n", __func__); | |
1474 | ||
1475 | ippdrv = cmd_work->ippdrv; | |
1476 | if (!ippdrv) { | |
1477 | DRM_ERROR("invalid ippdrv list.\n"); | |
1478 | return; | |
1479 | } | |
1480 | ||
1481 | c_node = cmd_work->c_node; | |
1482 | if (!c_node) { | |
1483 | DRM_ERROR("invalid command node list.\n"); | |
1484 | return; | |
1485 | } | |
1486 | ||
1487 | mutex_lock(&c_node->cmd_lock); | |
1488 | ||
1489 | property = &c_node->property; | |
cb471f14 EK |
1490 | |
1491 | switch (cmd_work->ctrl) { | |
1492 | case IPP_CTRL_PLAY: | |
1493 | case IPP_CTRL_RESUME: | |
1494 | ret = ipp_start_property(ippdrv, c_node); | |
1495 | if (ret) { | |
1496 | DRM_ERROR("failed to start property:prop_id[%d]\n", | |
1497 | c_node->property.prop_id); | |
1498 | goto err_unlock; | |
1499 | } | |
1500 | ||
1501 | /* | |
1502 | * M2M case supports wait_completion of transfer. | |
1503 | * because M2M case supports single unit operation | |
1504 | * with multiple queue. | |
1505 | * M2M need to wait completion of data transfer. | |
1506 | */ | |
1507 | if (ipp_is_m2m_cmd(property->cmd)) { | |
1508 | if (!wait_for_completion_timeout | |
1509 | (&c_node->start_complete, msecs_to_jiffies(200))) { | |
1510 | DRM_ERROR("timeout event:prop_id[%d]\n", | |
1511 | c_node->property.prop_id); | |
1512 | goto err_unlock; | |
1513 | } | |
1514 | } | |
1515 | break; | |
1516 | case IPP_CTRL_STOP: | |
1517 | case IPP_CTRL_PAUSE: | |
1518 | ret = ipp_stop_property(ippdrv->drm_dev, ippdrv, | |
1519 | c_node); | |
1520 | if (ret) { | |
1521 | DRM_ERROR("failed to stop property.\n"); | |
1522 | goto err_unlock; | |
1523 | } | |
1524 | ||
1525 | complete(&c_node->stop_complete); | |
1526 | break; | |
1527 | default: | |
1528 | DRM_ERROR("unknown control type\n"); | |
1529 | break; | |
1530 | } | |
1531 | ||
1532 | DRM_DEBUG_KMS("%s:ctrl[%d] done.\n", __func__, cmd_work->ctrl); | |
1533 | ||
1534 | err_unlock: | |
1535 | mutex_unlock(&c_node->cmd_lock); | |
1536 | } | |
1537 | ||
1538 | static int ipp_send_event(struct exynos_drm_ippdrv *ippdrv, | |
1539 | struct drm_exynos_ipp_cmd_node *c_node, int *buf_id) | |
1540 | { | |
1541 | struct drm_device *drm_dev = ippdrv->drm_dev; | |
1542 | struct drm_exynos_ipp_property *property = &c_node->property; | |
1543 | struct drm_exynos_ipp_mem_node *m_node; | |
1544 | struct drm_exynos_ipp_queue_buf qbuf; | |
1545 | struct drm_exynos_ipp_send_event *e; | |
1546 | struct list_head *head; | |
1547 | struct timeval now; | |
1548 | unsigned long flags; | |
1549 | u32 tbuf_id[EXYNOS_DRM_OPS_MAX] = {0, }; | |
1550 | int ret, i; | |
1551 | ||
1552 | for_each_ipp_ops(i) | |
1553 | DRM_DEBUG_KMS("%s:%s buf_id[%d]\n", __func__, | |
1554 | i ? "dst" : "src", buf_id[i]); | |
1555 | ||
1556 | if (!drm_dev) { | |
1557 | DRM_ERROR("failed to get drm_dev.\n"); | |
1558 | return -EINVAL; | |
1559 | } | |
1560 | ||
1561 | if (!property) { | |
1562 | DRM_ERROR("failed to get property.\n"); | |
1563 | return -EINVAL; | |
1564 | } | |
1565 | ||
1566 | if (list_empty(&c_node->event_list)) { | |
1567 | DRM_DEBUG_KMS("%s:event list is empty.\n", __func__); | |
1568 | return 0; | |
1569 | } | |
1570 | ||
1571 | if (!ipp_check_mem_list(c_node)) { | |
1572 | DRM_DEBUG_KMS("%s:empty memory.\n", __func__); | |
1573 | return 0; | |
1574 | } | |
1575 | ||
1576 | /* check command */ | |
1577 | switch (property->cmd) { | |
1578 | case IPP_CMD_M2M: | |
1579 | for_each_ipp_ops(i) { | |
1580 | /* source/destination memory list */ | |
1581 | head = &c_node->mem_list[i]; | |
1582 | ||
1583 | m_node = list_first_entry(head, | |
1584 | struct drm_exynos_ipp_mem_node, list); | |
1585 | if (!m_node) { | |
1586 | DRM_ERROR("empty memory node.\n"); | |
1587 | return -ENOMEM; | |
1588 | } | |
1589 | ||
1590 | tbuf_id[i] = m_node->buf_id; | |
1591 | DRM_DEBUG_KMS("%s:%s buf_id[%d]\n", __func__, | |
1592 | i ? "dst" : "src", tbuf_id[i]); | |
1593 | ||
1594 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1595 | if (ret) | |
1596 | DRM_ERROR("failed to put m_node.\n"); | |
1597 | } | |
1598 | break; | |
1599 | case IPP_CMD_WB: | |
1600 | /* clear buf for finding */ | |
1601 | memset(&qbuf, 0x0, sizeof(qbuf)); | |
1602 | qbuf.ops_id = EXYNOS_DRM_OPS_DST; | |
1603 | qbuf.buf_id = buf_id[EXYNOS_DRM_OPS_DST]; | |
1604 | ||
1605 | /* get memory node entry */ | |
1606 | m_node = ipp_find_mem_node(c_node, &qbuf); | |
1607 | if (!m_node) { | |
1608 | DRM_ERROR("empty memory node.\n"); | |
1609 | return -ENOMEM; | |
1610 | } | |
1611 | ||
1612 | tbuf_id[EXYNOS_DRM_OPS_DST] = m_node->buf_id; | |
1613 | ||
1614 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1615 | if (ret) | |
1616 | DRM_ERROR("failed to put m_node.\n"); | |
1617 | break; | |
1618 | case IPP_CMD_OUTPUT: | |
1619 | /* source memory list */ | |
1620 | head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC]; | |
1621 | ||
1622 | m_node = list_first_entry(head, | |
1623 | struct drm_exynos_ipp_mem_node, list); | |
1624 | if (!m_node) { | |
1625 | DRM_ERROR("empty memory node.\n"); | |
1626 | return -ENOMEM; | |
1627 | } | |
1628 | ||
1629 | tbuf_id[EXYNOS_DRM_OPS_SRC] = m_node->buf_id; | |
1630 | ||
1631 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1632 | if (ret) | |
1633 | DRM_ERROR("failed to put m_node.\n"); | |
1634 | break; | |
1635 | default: | |
1636 | DRM_ERROR("invalid operations.\n"); | |
1637 | return -EINVAL; | |
1638 | } | |
1639 | ||
1640 | if (tbuf_id[EXYNOS_DRM_OPS_DST] != buf_id[EXYNOS_DRM_OPS_DST]) | |
1641 | DRM_ERROR("failed to match buf_id[%d %d]prop_id[%d]\n", | |
1642 | tbuf_id[1], buf_id[1], property->prop_id); | |
1643 | ||
1644 | /* | |
1645 | * command node have event list of destination buffer | |
1646 | * If destination buffer enqueue to mem list, | |
1647 | * then we make event and link to event list tail. | |
1648 | * so, we get first event for first enqueued buffer. | |
1649 | */ | |
1650 | e = list_first_entry(&c_node->event_list, | |
1651 | struct drm_exynos_ipp_send_event, base.link); | |
1652 | ||
1653 | if (!e) { | |
1654 | DRM_ERROR("empty event.\n"); | |
1655 | return -EINVAL; | |
1656 | } | |
1657 | ||
1658 | do_gettimeofday(&now); | |
1659 | DRM_DEBUG_KMS("%s:tv_sec[%ld]tv_usec[%ld]\n" | |
1660 | , __func__, now.tv_sec, now.tv_usec); | |
1661 | e->event.tv_sec = now.tv_sec; | |
1662 | e->event.tv_usec = now.tv_usec; | |
1663 | e->event.prop_id = property->prop_id; | |
1664 | ||
1665 | /* set buffer id about source destination */ | |
1666 | for_each_ipp_ops(i) | |
1667 | e->event.buf_id[i] = tbuf_id[i]; | |
1668 | ||
1669 | spin_lock_irqsave(&drm_dev->event_lock, flags); | |
1670 | list_move_tail(&e->base.link, &e->base.file_priv->event_list); | |
1671 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
1672 | spin_unlock_irqrestore(&drm_dev->event_lock, flags); | |
1673 | ||
1674 | DRM_DEBUG_KMS("%s:done cmd[%d]prop_id[%d]buf_id[%d]\n", __func__, | |
1675 | property->cmd, property->prop_id, tbuf_id[EXYNOS_DRM_OPS_DST]); | |
1676 | ||
1677 | return 0; | |
1678 | } | |
1679 | ||
1680 | void ipp_sched_event(struct work_struct *work) | |
1681 | { | |
1682 | struct drm_exynos_ipp_event_work *event_work = | |
1683 | (struct drm_exynos_ipp_event_work *)work; | |
1684 | struct exynos_drm_ippdrv *ippdrv; | |
1685 | struct drm_exynos_ipp_cmd_node *c_node; | |
1686 | int ret; | |
1687 | ||
1688 | if (!event_work) { | |
1689 | DRM_ERROR("failed to get event_work.\n"); | |
1690 | return; | |
1691 | } | |
1692 | ||
1693 | DRM_DEBUG_KMS("%s:buf_id[%d]\n", __func__, | |
1694 | event_work->buf_id[EXYNOS_DRM_OPS_DST]); | |
1695 | ||
1696 | ippdrv = event_work->ippdrv; | |
1697 | if (!ippdrv) { | |
1698 | DRM_ERROR("failed to get ipp driver.\n"); | |
1699 | return; | |
1700 | } | |
1701 | ||
7259c3d6 | 1702 | c_node = ippdrv->c_node; |
cb471f14 EK |
1703 | if (!c_node) { |
1704 | DRM_ERROR("failed to get command node.\n"); | |
1705 | return; | |
1706 | } | |
1707 | ||
1708 | /* | |
1709 | * IPP supports command thread, event thread synchronization. | |
1710 | * If IPP close immediately from user land, then IPP make | |
1711 | * synchronization with command thread, so make complete event. | |
1712 | * or going out operations. | |
1713 | */ | |
1714 | if (c_node->state != IPP_STATE_START) { | |
1715 | DRM_DEBUG_KMS("%s:bypass state[%d]prop_id[%d]\n", | |
1716 | __func__, c_node->state, c_node->property.prop_id); | |
1717 | goto err_completion; | |
1718 | } | |
1719 | ||
1720 | mutex_lock(&c_node->event_lock); | |
1721 | ||
1722 | ret = ipp_send_event(ippdrv, c_node, event_work->buf_id); | |
1723 | if (ret) { | |
1724 | DRM_ERROR("failed to send event.\n"); | |
1725 | goto err_completion; | |
1726 | } | |
1727 | ||
1728 | err_completion: | |
1729 | if (ipp_is_m2m_cmd(c_node->property.cmd)) | |
1730 | complete(&c_node->start_complete); | |
1731 | ||
1732 | mutex_unlock(&c_node->event_lock); | |
1733 | } | |
1734 | ||
1735 | static int ipp_subdrv_probe(struct drm_device *drm_dev, struct device *dev) | |
1736 | { | |
1737 | struct ipp_context *ctx = get_ipp_context(dev); | |
1738 | struct exynos_drm_ippdrv *ippdrv; | |
1739 | int ret, count = 0; | |
1740 | ||
1741 | DRM_DEBUG_KMS("%s\n", __func__); | |
1742 | ||
1743 | /* get ipp driver entry */ | |
1744 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
1745 | ippdrv->drm_dev = drm_dev; | |
1746 | ||
1747 | ret = ipp_create_id(&ctx->ipp_idr, &ctx->ipp_lock, ippdrv, | |
1748 | &ippdrv->ipp_id); | |
1749 | if (ret) { | |
1750 | DRM_ERROR("failed to create id.\n"); | |
1751 | goto err_idr; | |
1752 | } | |
1753 | ||
1754 | DRM_DEBUG_KMS("%s:count[%d]ippdrv[0x%x]ipp_id[%d]\n", __func__, | |
1755 | count++, (int)ippdrv, ippdrv->ipp_id); | |
1756 | ||
1757 | if (ippdrv->ipp_id == 0) { | |
1758 | DRM_ERROR("failed to get ipp_id[%d]\n", | |
1759 | ippdrv->ipp_id); | |
1760 | goto err_idr; | |
1761 | } | |
1762 | ||
1763 | /* store parent device for node */ | |
1764 | ippdrv->parent_dev = dev; | |
1765 | ||
1766 | /* store event work queue and handler */ | |
1767 | ippdrv->event_workq = ctx->event_workq; | |
1768 | ippdrv->sched_event = ipp_sched_event; | |
1769 | INIT_LIST_HEAD(&ippdrv->cmd_list); | |
c12e2617 EK |
1770 | |
1771 | if (is_drm_iommu_supported(drm_dev)) { | |
1772 | ret = drm_iommu_attach_device(drm_dev, ippdrv->dev); | |
1773 | if (ret) { | |
1774 | DRM_ERROR("failed to activate iommu\n"); | |
1775 | goto err_iommu; | |
1776 | } | |
1777 | } | |
cb471f14 EK |
1778 | } |
1779 | ||
1780 | return 0; | |
1781 | ||
c12e2617 EK |
1782 | err_iommu: |
1783 | /* get ipp driver entry */ | |
1784 | list_for_each_entry_reverse(ippdrv, &exynos_drm_ippdrv_list, drv_list) | |
1785 | if (is_drm_iommu_supported(drm_dev)) | |
1786 | drm_iommu_detach_device(drm_dev, ippdrv->dev); | |
1787 | ||
cb471f14 EK |
1788 | err_idr: |
1789 | idr_remove_all(&ctx->ipp_idr); | |
1790 | idr_remove_all(&ctx->prop_idr); | |
1791 | idr_destroy(&ctx->ipp_idr); | |
1792 | idr_destroy(&ctx->prop_idr); | |
1793 | return ret; | |
1794 | } | |
1795 | ||
1796 | static void ipp_subdrv_remove(struct drm_device *drm_dev, struct device *dev) | |
1797 | { | |
1798 | struct exynos_drm_ippdrv *ippdrv; | |
1799 | ||
1800 | DRM_DEBUG_KMS("%s\n", __func__); | |
1801 | ||
1802 | /* get ipp driver entry */ | |
1803 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
c12e2617 EK |
1804 | if (is_drm_iommu_supported(drm_dev)) |
1805 | drm_iommu_detach_device(drm_dev, ippdrv->dev); | |
1806 | ||
cb471f14 EK |
1807 | ippdrv->drm_dev = NULL; |
1808 | exynos_drm_ippdrv_unregister(ippdrv); | |
1809 | } | |
1810 | } | |
1811 | ||
1812 | static int ipp_subdrv_open(struct drm_device *drm_dev, struct device *dev, | |
1813 | struct drm_file *file) | |
1814 | { | |
1815 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
1816 | struct exynos_drm_ipp_private *priv; | |
1817 | ||
1818 | DRM_DEBUG_KMS("%s\n", __func__); | |
1819 | ||
1820 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
1821 | if (!priv) { | |
1822 | DRM_ERROR("failed to allocate priv.\n"); | |
1823 | return -ENOMEM; | |
1824 | } | |
1825 | priv->dev = dev; | |
1826 | file_priv->ipp_priv = priv; | |
1827 | ||
1828 | INIT_LIST_HEAD(&priv->event_list); | |
1829 | ||
1830 | DRM_DEBUG_KMS("%s:done priv[0x%x]\n", __func__, (int)priv); | |
1831 | ||
1832 | return 0; | |
1833 | } | |
1834 | ||
1835 | static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev, | |
1836 | struct drm_file *file) | |
1837 | { | |
1838 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
1839 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
1840 | struct exynos_drm_ippdrv *ippdrv = NULL; | |
1841 | struct drm_exynos_ipp_cmd_node *c_node, *tc_node; | |
1842 | int count = 0; | |
1843 | ||
1844 | DRM_DEBUG_KMS("%s:for priv[0x%x]\n", __func__, (int)priv); | |
1845 | ||
1846 | if (list_empty(&exynos_drm_ippdrv_list)) { | |
1847 | DRM_DEBUG_KMS("%s:ippdrv_list is empty.\n", __func__); | |
1848 | goto err_clear; | |
1849 | } | |
1850 | ||
1851 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
1852 | if (list_empty(&ippdrv->cmd_list)) | |
1853 | continue; | |
1854 | ||
1855 | list_for_each_entry_safe(c_node, tc_node, | |
1856 | &ippdrv->cmd_list, list) { | |
1857 | DRM_DEBUG_KMS("%s:count[%d]ippdrv[0x%x]\n", | |
1858 | __func__, count++, (int)ippdrv); | |
1859 | ||
1860 | if (c_node->priv == priv) { | |
1861 | /* | |
1862 | * userland goto unnormal state. process killed. | |
1863 | * and close the file. | |
1864 | * so, IPP didn't called stop cmd ctrl. | |
1865 | * so, we are make stop operation in this state. | |
1866 | */ | |
1867 | if (c_node->state == IPP_STATE_START) { | |
1868 | ipp_stop_property(drm_dev, ippdrv, | |
1869 | c_node); | |
1870 | c_node->state = IPP_STATE_STOP; | |
1871 | } | |
1872 | ||
1873 | ippdrv->dedicated = false; | |
1874 | ipp_clean_cmd_node(c_node); | |
1875 | if (list_empty(&ippdrv->cmd_list)) | |
1876 | pm_runtime_put_sync(ippdrv->dev); | |
1877 | } | |
1878 | } | |
1879 | } | |
1880 | ||
1881 | err_clear: | |
1882 | kfree(priv); | |
1883 | return; | |
1884 | } | |
1885 | ||
56550d94 | 1886 | static int ipp_probe(struct platform_device *pdev) |
cb471f14 EK |
1887 | { |
1888 | struct device *dev = &pdev->dev; | |
1889 | struct ipp_context *ctx; | |
1890 | struct exynos_drm_subdrv *subdrv; | |
1891 | int ret; | |
1892 | ||
bfb6ed26 | 1893 | ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); |
cb471f14 EK |
1894 | if (!ctx) |
1895 | return -ENOMEM; | |
1896 | ||
1897 | DRM_DEBUG_KMS("%s\n", __func__); | |
1898 | ||
1899 | mutex_init(&ctx->ipp_lock); | |
1900 | mutex_init(&ctx->prop_lock); | |
1901 | ||
1902 | idr_init(&ctx->ipp_idr); | |
1903 | idr_init(&ctx->prop_idr); | |
1904 | ||
1905 | /* | |
1906 | * create single thread for ipp event | |
1907 | * IPP supports event thread for IPP drivers. | |
1908 | * IPP driver send event_work to this thread. | |
1909 | * and IPP event thread send event to user process. | |
1910 | */ | |
1911 | ctx->event_workq = create_singlethread_workqueue("ipp_event"); | |
1912 | if (!ctx->event_workq) { | |
1913 | dev_err(dev, "failed to create event workqueue\n"); | |
bfb6ed26 | 1914 | return -EINVAL; |
cb471f14 EK |
1915 | } |
1916 | ||
1917 | /* | |
1918 | * create single thread for ipp command | |
1919 | * IPP supports command thread for user process. | |
1920 | * user process make command node using set property ioctl. | |
1921 | * and make start_work and send this work to command thread. | |
1922 | * and then this command thread start property. | |
1923 | */ | |
1924 | ctx->cmd_workq = create_singlethread_workqueue("ipp_cmd"); | |
1925 | if (!ctx->cmd_workq) { | |
1926 | dev_err(dev, "failed to create cmd workqueue\n"); | |
1927 | ret = -EINVAL; | |
1928 | goto err_event_workq; | |
1929 | } | |
1930 | ||
1931 | /* set sub driver informations */ | |
1932 | subdrv = &ctx->subdrv; | |
1933 | subdrv->dev = dev; | |
1934 | subdrv->probe = ipp_subdrv_probe; | |
1935 | subdrv->remove = ipp_subdrv_remove; | |
1936 | subdrv->open = ipp_subdrv_open; | |
1937 | subdrv->close = ipp_subdrv_close; | |
1938 | ||
1939 | platform_set_drvdata(pdev, ctx); | |
1940 | ||
1941 | ret = exynos_drm_subdrv_register(subdrv); | |
1942 | if (ret < 0) { | |
1943 | DRM_ERROR("failed to register drm ipp device.\n"); | |
1944 | goto err_cmd_workq; | |
1945 | } | |
1946 | ||
1947 | dev_info(&pdev->dev, "drm ipp registered successfully.\n"); | |
1948 | ||
1949 | return 0; | |
1950 | ||
1951 | err_cmd_workq: | |
1952 | destroy_workqueue(ctx->cmd_workq); | |
1953 | err_event_workq: | |
1954 | destroy_workqueue(ctx->event_workq); | |
cb471f14 EK |
1955 | return ret; |
1956 | } | |
1957 | ||
56550d94 | 1958 | static int ipp_remove(struct platform_device *pdev) |
cb471f14 EK |
1959 | { |
1960 | struct ipp_context *ctx = platform_get_drvdata(pdev); | |
1961 | ||
1962 | DRM_DEBUG_KMS("%s\n", __func__); | |
1963 | ||
1964 | /* unregister sub driver */ | |
1965 | exynos_drm_subdrv_unregister(&ctx->subdrv); | |
1966 | ||
1967 | /* remove,destroy ipp idr */ | |
1968 | idr_remove_all(&ctx->ipp_idr); | |
1969 | idr_remove_all(&ctx->prop_idr); | |
1970 | idr_destroy(&ctx->ipp_idr); | |
1971 | idr_destroy(&ctx->prop_idr); | |
1972 | ||
1973 | mutex_destroy(&ctx->ipp_lock); | |
1974 | mutex_destroy(&ctx->prop_lock); | |
1975 | ||
1976 | /* destroy command, event work queue */ | |
1977 | destroy_workqueue(ctx->cmd_workq); | |
1978 | destroy_workqueue(ctx->event_workq); | |
1979 | ||
cb471f14 EK |
1980 | return 0; |
1981 | } | |
1982 | ||
1983 | static int ipp_power_ctrl(struct ipp_context *ctx, bool enable) | |
1984 | { | |
1985 | DRM_DEBUG_KMS("%s:enable[%d]\n", __func__, enable); | |
1986 | ||
1987 | return 0; | |
1988 | } | |
1989 | ||
1990 | #ifdef CONFIG_PM_SLEEP | |
1991 | static int ipp_suspend(struct device *dev) | |
1992 | { | |
1993 | struct ipp_context *ctx = get_ipp_context(dev); | |
1994 | ||
1995 | DRM_DEBUG_KMS("%s\n", __func__); | |
1996 | ||
1997 | if (pm_runtime_suspended(dev)) | |
1998 | return 0; | |
1999 | ||
2000 | return ipp_power_ctrl(ctx, false); | |
2001 | } | |
2002 | ||
2003 | static int ipp_resume(struct device *dev) | |
2004 | { | |
2005 | struct ipp_context *ctx = get_ipp_context(dev); | |
2006 | ||
2007 | DRM_DEBUG_KMS("%s\n", __func__); | |
2008 | ||
2009 | if (!pm_runtime_suspended(dev)) | |
2010 | return ipp_power_ctrl(ctx, true); | |
2011 | ||
2012 | return 0; | |
2013 | } | |
2014 | #endif | |
2015 | ||
2016 | #ifdef CONFIG_PM_RUNTIME | |
2017 | static int ipp_runtime_suspend(struct device *dev) | |
2018 | { | |
2019 | struct ipp_context *ctx = get_ipp_context(dev); | |
2020 | ||
2021 | DRM_DEBUG_KMS("%s\n", __func__); | |
2022 | ||
2023 | return ipp_power_ctrl(ctx, false); | |
2024 | } | |
2025 | ||
2026 | static int ipp_runtime_resume(struct device *dev) | |
2027 | { | |
2028 | struct ipp_context *ctx = get_ipp_context(dev); | |
2029 | ||
2030 | DRM_DEBUG_KMS("%s\n", __func__); | |
2031 | ||
2032 | return ipp_power_ctrl(ctx, true); | |
2033 | } | |
2034 | #endif | |
2035 | ||
2036 | static const struct dev_pm_ops ipp_pm_ops = { | |
2037 | SET_SYSTEM_SLEEP_PM_OPS(ipp_suspend, ipp_resume) | |
2038 | SET_RUNTIME_PM_OPS(ipp_runtime_suspend, ipp_runtime_resume, NULL) | |
2039 | }; | |
2040 | ||
2041 | struct platform_driver ipp_driver = { | |
2042 | .probe = ipp_probe, | |
56550d94 | 2043 | .remove = ipp_remove, |
cb471f14 EK |
2044 | .driver = { |
2045 | .name = "exynos-drm-ipp", | |
2046 | .owner = THIS_MODULE, | |
2047 | .pm = &ipp_pm_ops, | |
2048 | }, | |
2049 | }; | |
2050 |