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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 | ||
43f41900 SWK |
50 | /* platform device pointer for ipp device. */ |
51 | static struct platform_device *exynos_drm_ipp_pdev; | |
52 | ||
cb471f14 EK |
53 | /* |
54 | * A structure of event. | |
55 | * | |
56 | * @base: base of event. | |
57 | * @event: ipp event. | |
58 | */ | |
59 | struct drm_exynos_ipp_send_event { | |
60 | struct drm_pending_event base; | |
61 | struct drm_exynos_ipp_event event; | |
62 | }; | |
63 | ||
64 | /* | |
65 | * A structure of memory node. | |
66 | * | |
67 | * @list: list head to memory queue information. | |
68 | * @ops_id: id of operations. | |
69 | * @prop_id: id of property. | |
70 | * @buf_id: id of buffer. | |
71 | * @buf_info: gem objects and dma address, size. | |
72 | * @filp: a pointer to drm_file. | |
73 | */ | |
74 | struct drm_exynos_ipp_mem_node { | |
75 | struct list_head list; | |
76 | enum drm_exynos_ops_id ops_id; | |
77 | u32 prop_id; | |
78 | u32 buf_id; | |
79 | struct drm_exynos_ipp_buf_info buf_info; | |
80 | struct drm_file *filp; | |
81 | }; | |
82 | ||
83 | /* | |
84 | * A structure of ipp context. | |
85 | * | |
86 | * @subdrv: prepare initialization using subdrv. | |
87 | * @ipp_lock: lock for synchronization of access to ipp_idr. | |
88 | * @prop_lock: lock for synchronization of access to prop_idr. | |
89 | * @ipp_idr: ipp driver idr. | |
90 | * @prop_idr: property idr. | |
91 | * @event_workq: event work queue. | |
92 | * @cmd_workq: command work queue. | |
93 | */ | |
94 | struct ipp_context { | |
95 | struct exynos_drm_subdrv subdrv; | |
96 | struct mutex ipp_lock; | |
97 | struct mutex prop_lock; | |
98 | struct idr ipp_idr; | |
99 | struct idr prop_idr; | |
100 | struct workqueue_struct *event_workq; | |
101 | struct workqueue_struct *cmd_workq; | |
102 | }; | |
103 | ||
104 | static LIST_HEAD(exynos_drm_ippdrv_list); | |
105 | static DEFINE_MUTEX(exynos_drm_ippdrv_lock); | |
106 | static BLOCKING_NOTIFIER_HEAD(exynos_drm_ippnb_list); | |
107 | ||
43f41900 SWK |
108 | int exynos_platform_device_ipp_register(void) |
109 | { | |
110 | struct platform_device *pdev; | |
111 | ||
112 | if (exynos_drm_ipp_pdev) | |
113 | return -EEXIST; | |
114 | ||
115 | pdev = platform_device_register_simple("exynos-drm-ipp", -1, NULL, 0); | |
116 | if (IS_ERR(pdev)) | |
117 | return PTR_ERR(pdev); | |
118 | ||
119 | exynos_drm_ipp_pdev = pdev; | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
124 | void exynos_platform_device_ipp_unregister(void) | |
125 | { | |
126 | if (exynos_drm_ipp_pdev) { | |
127 | platform_device_unregister(exynos_drm_ipp_pdev); | |
128 | exynos_drm_ipp_pdev = NULL; | |
129 | } | |
130 | } | |
131 | ||
cb471f14 EK |
132 | int exynos_drm_ippdrv_register(struct exynos_drm_ippdrv *ippdrv) |
133 | { | |
134 | DRM_DEBUG_KMS("%s\n", __func__); | |
135 | ||
136 | if (!ippdrv) | |
137 | return -EINVAL; | |
138 | ||
139 | mutex_lock(&exynos_drm_ippdrv_lock); | |
140 | list_add_tail(&ippdrv->drv_list, &exynos_drm_ippdrv_list); | |
141 | mutex_unlock(&exynos_drm_ippdrv_lock); | |
142 | ||
143 | return 0; | |
144 | } | |
145 | ||
146 | int exynos_drm_ippdrv_unregister(struct exynos_drm_ippdrv *ippdrv) | |
147 | { | |
148 | DRM_DEBUG_KMS("%s\n", __func__); | |
149 | ||
150 | if (!ippdrv) | |
151 | return -EINVAL; | |
152 | ||
153 | mutex_lock(&exynos_drm_ippdrv_lock); | |
154 | list_del(&ippdrv->drv_list); | |
155 | mutex_unlock(&exynos_drm_ippdrv_lock); | |
156 | ||
157 | return 0; | |
158 | } | |
159 | ||
160 | static int ipp_create_id(struct idr *id_idr, struct mutex *lock, void *obj, | |
161 | u32 *idp) | |
162 | { | |
163 | int ret; | |
164 | ||
165 | DRM_DEBUG_KMS("%s\n", __func__); | |
166 | ||
cb471f14 EK |
167 | /* do the allocation under our mutexlock */ |
168 | mutex_lock(lock); | |
8550cb2e | 169 | ret = idr_alloc(id_idr, obj, 1, 0, GFP_KERNEL); |
cb471f14 | 170 | mutex_unlock(lock); |
8550cb2e TH |
171 | if (ret < 0) |
172 | return ret; | |
cb471f14 | 173 | |
8550cb2e TH |
174 | *idp = ret; |
175 | return 0; | |
cb471f14 EK |
176 | } |
177 | ||
178 | static void *ipp_find_obj(struct idr *id_idr, struct mutex *lock, u32 id) | |
179 | { | |
180 | void *obj; | |
181 | ||
182 | DRM_DEBUG_KMS("%s:id[%d]\n", __func__, id); | |
183 | ||
184 | mutex_lock(lock); | |
185 | ||
186 | /* find object using handle */ | |
187 | obj = idr_find(id_idr, id); | |
188 | if (!obj) { | |
189 | DRM_ERROR("failed to find object.\n"); | |
190 | mutex_unlock(lock); | |
191 | return ERR_PTR(-ENODEV); | |
192 | } | |
193 | ||
194 | mutex_unlock(lock); | |
195 | ||
196 | return obj; | |
197 | } | |
198 | ||
199 | static inline bool ipp_check_dedicated(struct exynos_drm_ippdrv *ippdrv, | |
200 | enum drm_exynos_ipp_cmd cmd) | |
201 | { | |
202 | /* | |
203 | * check dedicated flag and WB, OUTPUT operation with | |
204 | * power on state. | |
205 | */ | |
206 | if (ippdrv->dedicated || (!ipp_is_m2m_cmd(cmd) && | |
207 | !pm_runtime_suspended(ippdrv->dev))) | |
208 | return true; | |
209 | ||
210 | return false; | |
211 | } | |
212 | ||
213 | static struct exynos_drm_ippdrv *ipp_find_driver(struct ipp_context *ctx, | |
214 | struct drm_exynos_ipp_property *property) | |
215 | { | |
216 | struct exynos_drm_ippdrv *ippdrv; | |
217 | u32 ipp_id = property->ipp_id; | |
218 | ||
219 | DRM_DEBUG_KMS("%s:ipp_id[%d]\n", __func__, ipp_id); | |
220 | ||
221 | if (ipp_id) { | |
222 | /* find ipp driver using idr */ | |
223 | ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, | |
224 | ipp_id); | |
f0250458 | 225 | if (IS_ERR(ippdrv)) { |
cb471f14 EK |
226 | DRM_ERROR("not found ipp%d driver.\n", ipp_id); |
227 | return ippdrv; | |
228 | } | |
229 | ||
230 | /* | |
231 | * WB, OUTPUT opertion not supported multi-operation. | |
232 | * so, make dedicated state at set property ioctl. | |
233 | * when ipp driver finished operations, clear dedicated flags. | |
234 | */ | |
235 | if (ipp_check_dedicated(ippdrv, property->cmd)) { | |
236 | DRM_ERROR("already used choose device.\n"); | |
237 | return ERR_PTR(-EBUSY); | |
238 | } | |
239 | ||
240 | /* | |
241 | * This is necessary to find correct device in ipp drivers. | |
242 | * ipp drivers have different abilities, | |
243 | * so need to check property. | |
244 | */ | |
245 | if (ippdrv->check_property && | |
246 | ippdrv->check_property(ippdrv->dev, property)) { | |
247 | DRM_ERROR("not support property.\n"); | |
248 | return ERR_PTR(-EINVAL); | |
249 | } | |
250 | ||
251 | return ippdrv; | |
252 | } else { | |
253 | /* | |
254 | * This case is search all ipp driver for finding. | |
255 | * user application don't set ipp_id in this case, | |
256 | * so ipp subsystem search correct driver in driver list. | |
257 | */ | |
258 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
259 | if (ipp_check_dedicated(ippdrv, property->cmd)) { | |
260 | DRM_DEBUG_KMS("%s:used device.\n", __func__); | |
261 | continue; | |
262 | } | |
263 | ||
264 | if (ippdrv->check_property && | |
265 | ippdrv->check_property(ippdrv->dev, property)) { | |
266 | DRM_DEBUG_KMS("%s:not support property.\n", | |
267 | __func__); | |
268 | continue; | |
269 | } | |
270 | ||
271 | return ippdrv; | |
272 | } | |
273 | ||
274 | DRM_ERROR("not support ipp driver operations.\n"); | |
275 | } | |
276 | ||
277 | return ERR_PTR(-ENODEV); | |
278 | } | |
279 | ||
280 | static struct exynos_drm_ippdrv *ipp_find_drv_by_handle(u32 prop_id) | |
281 | { | |
282 | struct exynos_drm_ippdrv *ippdrv; | |
283 | struct drm_exynos_ipp_cmd_node *c_node; | |
284 | int count = 0; | |
285 | ||
286 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, prop_id); | |
287 | ||
288 | if (list_empty(&exynos_drm_ippdrv_list)) { | |
289 | DRM_DEBUG_KMS("%s:ippdrv_list is empty.\n", __func__); | |
290 | return ERR_PTR(-ENODEV); | |
291 | } | |
292 | ||
293 | /* | |
294 | * This case is search ipp driver by prop_id handle. | |
295 | * sometimes, ipp subsystem find driver by prop_id. | |
296 | * e.g PAUSE state, queue buf, command contro. | |
297 | */ | |
298 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
299 | DRM_DEBUG_KMS("%s:count[%d]ippdrv[0x%x]\n", __func__, | |
300 | count++, (int)ippdrv); | |
301 | ||
302 | if (!list_empty(&ippdrv->cmd_list)) { | |
303 | list_for_each_entry(c_node, &ippdrv->cmd_list, list) | |
304 | if (c_node->property.prop_id == prop_id) | |
305 | return ippdrv; | |
306 | } | |
307 | } | |
308 | ||
309 | return ERR_PTR(-ENODEV); | |
310 | } | |
311 | ||
312 | int exynos_drm_ipp_get_property(struct drm_device *drm_dev, void *data, | |
313 | struct drm_file *file) | |
314 | { | |
315 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
316 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
317 | struct device *dev = priv->dev; | |
318 | struct ipp_context *ctx = get_ipp_context(dev); | |
319 | struct drm_exynos_ipp_prop_list *prop_list = data; | |
320 | struct exynos_drm_ippdrv *ippdrv; | |
321 | int count = 0; | |
322 | ||
323 | DRM_DEBUG_KMS("%s\n", __func__); | |
324 | ||
325 | if (!ctx) { | |
326 | DRM_ERROR("invalid context.\n"); | |
327 | return -EINVAL; | |
328 | } | |
329 | ||
330 | if (!prop_list) { | |
331 | DRM_ERROR("invalid property parameter.\n"); | |
332 | return -EINVAL; | |
333 | } | |
334 | ||
335 | DRM_DEBUG_KMS("%s:ipp_id[%d]\n", __func__, prop_list->ipp_id); | |
336 | ||
337 | if (!prop_list->ipp_id) { | |
338 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) | |
339 | count++; | |
340 | /* | |
341 | * Supports ippdrv list count for user application. | |
342 | * First step user application getting ippdrv count. | |
343 | * and second step getting ippdrv capability using ipp_id. | |
344 | */ | |
345 | prop_list->count = count; | |
346 | } else { | |
347 | /* | |
348 | * Getting ippdrv capability by ipp_id. | |
349 | * some deivce not supported wb, output interface. | |
350 | * so, user application detect correct ipp driver | |
351 | * using this ioctl. | |
352 | */ | |
353 | ippdrv = ipp_find_obj(&ctx->ipp_idr, &ctx->ipp_lock, | |
354 | prop_list->ipp_id); | |
355 | if (!ippdrv) { | |
356 | DRM_ERROR("not found ipp%d driver.\n", | |
357 | prop_list->ipp_id); | |
358 | return -EINVAL; | |
359 | } | |
360 | ||
361 | prop_list = ippdrv->prop_list; | |
362 | } | |
363 | ||
364 | return 0; | |
365 | } | |
366 | ||
367 | static void ipp_print_property(struct drm_exynos_ipp_property *property, | |
368 | int idx) | |
369 | { | |
370 | struct drm_exynos_ipp_config *config = &property->config[idx]; | |
371 | struct drm_exynos_pos *pos = &config->pos; | |
372 | struct drm_exynos_sz *sz = &config->sz; | |
373 | ||
374 | DRM_DEBUG_KMS("%s:prop_id[%d]ops[%s]fmt[0x%x]\n", | |
375 | __func__, property->prop_id, idx ? "dst" : "src", config->fmt); | |
376 | ||
377 | DRM_DEBUG_KMS("%s:pos[%d %d %d %d]sz[%d %d]f[%d]r[%d]\n", | |
378 | __func__, pos->x, pos->y, pos->w, pos->h, | |
379 | sz->hsize, sz->vsize, config->flip, config->degree); | |
380 | } | |
381 | ||
382 | static int ipp_find_and_set_property(struct drm_exynos_ipp_property *property) | |
383 | { | |
384 | struct exynos_drm_ippdrv *ippdrv; | |
385 | struct drm_exynos_ipp_cmd_node *c_node; | |
386 | u32 prop_id = property->prop_id; | |
387 | ||
388 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, prop_id); | |
389 | ||
390 | ippdrv = ipp_find_drv_by_handle(prop_id); | |
f0250458 | 391 | if (IS_ERR(ippdrv)) { |
cb471f14 EK |
392 | DRM_ERROR("failed to get ipp driver.\n"); |
393 | return -EINVAL; | |
394 | } | |
395 | ||
396 | /* | |
397 | * Find command node using command list in ippdrv. | |
398 | * when we find this command no using prop_id. | |
399 | * return property information set in this command node. | |
400 | */ | |
401 | list_for_each_entry(c_node, &ippdrv->cmd_list, list) { | |
402 | if ((c_node->property.prop_id == prop_id) && | |
403 | (c_node->state == IPP_STATE_STOP)) { | |
404 | DRM_DEBUG_KMS("%s:found cmd[%d]ippdrv[0x%x]\n", | |
405 | __func__, property->cmd, (int)ippdrv); | |
406 | ||
407 | c_node->property = *property; | |
408 | return 0; | |
409 | } | |
410 | } | |
411 | ||
412 | DRM_ERROR("failed to search property.\n"); | |
413 | ||
414 | return -EINVAL; | |
415 | } | |
416 | ||
417 | static struct drm_exynos_ipp_cmd_work *ipp_create_cmd_work(void) | |
418 | { | |
419 | struct drm_exynos_ipp_cmd_work *cmd_work; | |
420 | ||
421 | DRM_DEBUG_KMS("%s\n", __func__); | |
422 | ||
423 | cmd_work = kzalloc(sizeof(*cmd_work), GFP_KERNEL); | |
424 | if (!cmd_work) { | |
425 | DRM_ERROR("failed to alloc cmd_work.\n"); | |
426 | return ERR_PTR(-ENOMEM); | |
427 | } | |
428 | ||
429 | INIT_WORK((struct work_struct *)cmd_work, ipp_sched_cmd); | |
430 | ||
431 | return cmd_work; | |
432 | } | |
433 | ||
434 | static struct drm_exynos_ipp_event_work *ipp_create_event_work(void) | |
435 | { | |
436 | struct drm_exynos_ipp_event_work *event_work; | |
437 | ||
438 | DRM_DEBUG_KMS("%s\n", __func__); | |
439 | ||
440 | event_work = kzalloc(sizeof(*event_work), GFP_KERNEL); | |
441 | if (!event_work) { | |
442 | DRM_ERROR("failed to alloc event_work.\n"); | |
443 | return ERR_PTR(-ENOMEM); | |
444 | } | |
445 | ||
446 | INIT_WORK((struct work_struct *)event_work, ipp_sched_event); | |
447 | ||
448 | return event_work; | |
449 | } | |
450 | ||
451 | int exynos_drm_ipp_set_property(struct drm_device *drm_dev, void *data, | |
452 | struct drm_file *file) | |
453 | { | |
454 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
455 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
456 | struct device *dev = priv->dev; | |
457 | struct ipp_context *ctx = get_ipp_context(dev); | |
458 | struct drm_exynos_ipp_property *property = data; | |
459 | struct exynos_drm_ippdrv *ippdrv; | |
460 | struct drm_exynos_ipp_cmd_node *c_node; | |
461 | int ret, i; | |
462 | ||
463 | DRM_DEBUG_KMS("%s\n", __func__); | |
464 | ||
465 | if (!ctx) { | |
466 | DRM_ERROR("invalid context.\n"); | |
467 | return -EINVAL; | |
468 | } | |
469 | ||
470 | if (!property) { | |
471 | DRM_ERROR("invalid property parameter.\n"); | |
472 | return -EINVAL; | |
473 | } | |
474 | ||
475 | /* | |
476 | * This is log print for user application property. | |
477 | * user application set various property. | |
478 | */ | |
479 | for_each_ipp_ops(i) | |
480 | ipp_print_property(property, i); | |
481 | ||
482 | /* | |
483 | * set property ioctl generated new prop_id. | |
484 | * but in this case already asigned prop_id using old set property. | |
485 | * e.g PAUSE state. this case supports find current prop_id and use it | |
486 | * instead of allocation. | |
487 | */ | |
488 | if (property->prop_id) { | |
489 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, property->prop_id); | |
490 | return ipp_find_and_set_property(property); | |
491 | } | |
492 | ||
493 | /* find ipp driver using ipp id */ | |
494 | ippdrv = ipp_find_driver(ctx, property); | |
f0250458 | 495 | if (IS_ERR(ippdrv)) { |
cb471f14 EK |
496 | DRM_ERROR("failed to get ipp driver.\n"); |
497 | return -EINVAL; | |
498 | } | |
499 | ||
500 | /* allocate command node */ | |
501 | c_node = kzalloc(sizeof(*c_node), GFP_KERNEL); | |
502 | if (!c_node) { | |
503 | DRM_ERROR("failed to allocate map node.\n"); | |
504 | return -ENOMEM; | |
505 | } | |
506 | ||
507 | /* create property id */ | |
508 | ret = ipp_create_id(&ctx->prop_idr, &ctx->prop_lock, c_node, | |
509 | &property->prop_id); | |
510 | if (ret) { | |
511 | DRM_ERROR("failed to create id.\n"); | |
512 | goto err_clear; | |
513 | } | |
514 | ||
515 | DRM_DEBUG_KMS("%s:created prop_id[%d]cmd[%d]ippdrv[0x%x]\n", | |
516 | __func__, property->prop_id, property->cmd, (int)ippdrv); | |
517 | ||
518 | /* stored property information and ippdrv in private data */ | |
519 | c_node->priv = priv; | |
520 | c_node->property = *property; | |
521 | c_node->state = IPP_STATE_IDLE; | |
522 | ||
523 | c_node->start_work = ipp_create_cmd_work(); | |
f0250458 | 524 | if (IS_ERR(c_node->start_work)) { |
cb471f14 EK |
525 | DRM_ERROR("failed to create start work.\n"); |
526 | goto err_clear; | |
527 | } | |
528 | ||
529 | c_node->stop_work = ipp_create_cmd_work(); | |
f0250458 | 530 | if (IS_ERR(c_node->stop_work)) { |
cb471f14 EK |
531 | DRM_ERROR("failed to create stop work.\n"); |
532 | goto err_free_start; | |
533 | } | |
534 | ||
535 | c_node->event_work = ipp_create_event_work(); | |
f0250458 | 536 | if (IS_ERR(c_node->event_work)) { |
cb471f14 EK |
537 | DRM_ERROR("failed to create event work.\n"); |
538 | goto err_free_stop; | |
539 | } | |
540 | ||
541 | mutex_init(&c_node->cmd_lock); | |
542 | mutex_init(&c_node->mem_lock); | |
543 | mutex_init(&c_node->event_lock); | |
544 | ||
545 | init_completion(&c_node->start_complete); | |
546 | init_completion(&c_node->stop_complete); | |
547 | ||
548 | for_each_ipp_ops(i) | |
549 | INIT_LIST_HEAD(&c_node->mem_list[i]); | |
550 | ||
551 | INIT_LIST_HEAD(&c_node->event_list); | |
552 | list_splice_init(&priv->event_list, &c_node->event_list); | |
553 | list_add_tail(&c_node->list, &ippdrv->cmd_list); | |
554 | ||
555 | /* make dedicated state without m2m */ | |
556 | if (!ipp_is_m2m_cmd(property->cmd)) | |
557 | ippdrv->dedicated = true; | |
558 | ||
559 | return 0; | |
560 | ||
561 | err_free_stop: | |
562 | kfree(c_node->stop_work); | |
563 | err_free_start: | |
564 | kfree(c_node->start_work); | |
565 | err_clear: | |
566 | kfree(c_node); | |
567 | return ret; | |
568 | } | |
569 | ||
570 | static void ipp_clean_cmd_node(struct drm_exynos_ipp_cmd_node *c_node) | |
571 | { | |
572 | DRM_DEBUG_KMS("%s\n", __func__); | |
573 | ||
574 | /* delete list */ | |
575 | list_del(&c_node->list); | |
576 | ||
577 | /* destroy mutex */ | |
578 | mutex_destroy(&c_node->cmd_lock); | |
579 | mutex_destroy(&c_node->mem_lock); | |
580 | mutex_destroy(&c_node->event_lock); | |
581 | ||
582 | /* free command node */ | |
583 | kfree(c_node->start_work); | |
584 | kfree(c_node->stop_work); | |
585 | kfree(c_node->event_work); | |
586 | kfree(c_node); | |
587 | } | |
588 | ||
589 | static int ipp_check_mem_list(struct drm_exynos_ipp_cmd_node *c_node) | |
590 | { | |
591 | struct drm_exynos_ipp_property *property = &c_node->property; | |
592 | struct drm_exynos_ipp_mem_node *m_node; | |
593 | struct list_head *head; | |
594 | int ret, i, count[EXYNOS_DRM_OPS_MAX] = { 0, }; | |
595 | ||
596 | DRM_DEBUG_KMS("%s\n", __func__); | |
597 | ||
598 | mutex_lock(&c_node->mem_lock); | |
599 | ||
600 | for_each_ipp_ops(i) { | |
601 | /* source/destination memory list */ | |
602 | head = &c_node->mem_list[i]; | |
603 | ||
604 | if (list_empty(head)) { | |
605 | DRM_DEBUG_KMS("%s:%s memory empty.\n", __func__, | |
606 | i ? "dst" : "src"); | |
607 | continue; | |
608 | } | |
609 | ||
610 | /* find memory node entry */ | |
611 | list_for_each_entry(m_node, head, list) { | |
612 | DRM_DEBUG_KMS("%s:%s,count[%d]m_node[0x%x]\n", __func__, | |
613 | i ? "dst" : "src", count[i], (int)m_node); | |
614 | count[i]++; | |
615 | } | |
616 | } | |
617 | ||
618 | DRM_DEBUG_KMS("%s:min[%d]max[%d]\n", __func__, | |
619 | min(count[EXYNOS_DRM_OPS_SRC], count[EXYNOS_DRM_OPS_DST]), | |
620 | max(count[EXYNOS_DRM_OPS_SRC], count[EXYNOS_DRM_OPS_DST])); | |
621 | ||
622 | /* | |
623 | * M2M operations should be need paired memory address. | |
624 | * so, need to check minimum count about src, dst. | |
625 | * other case not use paired memory, so use maximum count | |
626 | */ | |
627 | if (ipp_is_m2m_cmd(property->cmd)) | |
628 | ret = min(count[EXYNOS_DRM_OPS_SRC], | |
629 | count[EXYNOS_DRM_OPS_DST]); | |
630 | else | |
631 | ret = max(count[EXYNOS_DRM_OPS_SRC], | |
632 | count[EXYNOS_DRM_OPS_DST]); | |
633 | ||
634 | mutex_unlock(&c_node->mem_lock); | |
635 | ||
636 | return ret; | |
637 | } | |
638 | ||
639 | static struct drm_exynos_ipp_mem_node | |
640 | *ipp_find_mem_node(struct drm_exynos_ipp_cmd_node *c_node, | |
641 | struct drm_exynos_ipp_queue_buf *qbuf) | |
642 | { | |
643 | struct drm_exynos_ipp_mem_node *m_node; | |
644 | struct list_head *head; | |
645 | int count = 0; | |
646 | ||
647 | DRM_DEBUG_KMS("%s:buf_id[%d]\n", __func__, qbuf->buf_id); | |
648 | ||
649 | /* source/destination memory list */ | |
650 | head = &c_node->mem_list[qbuf->ops_id]; | |
651 | ||
652 | /* find memory node from memory list */ | |
653 | list_for_each_entry(m_node, head, list) { | |
654 | DRM_DEBUG_KMS("%s:count[%d]m_node[0x%x]\n", | |
655 | __func__, count++, (int)m_node); | |
656 | ||
657 | /* compare buffer id */ | |
658 | if (m_node->buf_id == qbuf->buf_id) | |
659 | return m_node; | |
660 | } | |
661 | ||
662 | return NULL; | |
663 | } | |
664 | ||
665 | static int ipp_set_mem_node(struct exynos_drm_ippdrv *ippdrv, | |
666 | struct drm_exynos_ipp_cmd_node *c_node, | |
667 | struct drm_exynos_ipp_mem_node *m_node) | |
668 | { | |
669 | struct exynos_drm_ipp_ops *ops = NULL; | |
670 | int ret = 0; | |
671 | ||
672 | DRM_DEBUG_KMS("%s:node[0x%x]\n", __func__, (int)m_node); | |
673 | ||
674 | if (!m_node) { | |
675 | DRM_ERROR("invalid queue node.\n"); | |
676 | return -EFAULT; | |
677 | } | |
678 | ||
679 | mutex_lock(&c_node->mem_lock); | |
680 | ||
681 | DRM_DEBUG_KMS("%s:ops_id[%d]\n", __func__, m_node->ops_id); | |
682 | ||
683 | /* get operations callback */ | |
684 | ops = ippdrv->ops[m_node->ops_id]; | |
685 | if (!ops) { | |
686 | DRM_ERROR("not support ops.\n"); | |
687 | ret = -EFAULT; | |
688 | goto err_unlock; | |
689 | } | |
690 | ||
691 | /* set address and enable irq */ | |
692 | if (ops->set_addr) { | |
693 | ret = ops->set_addr(ippdrv->dev, &m_node->buf_info, | |
694 | m_node->buf_id, IPP_BUF_ENQUEUE); | |
695 | if (ret) { | |
696 | DRM_ERROR("failed to set addr.\n"); | |
697 | goto err_unlock; | |
698 | } | |
699 | } | |
700 | ||
701 | err_unlock: | |
702 | mutex_unlock(&c_node->mem_lock); | |
703 | return ret; | |
704 | } | |
705 | ||
706 | static struct drm_exynos_ipp_mem_node | |
707 | *ipp_get_mem_node(struct drm_device *drm_dev, | |
708 | struct drm_file *file, | |
709 | struct drm_exynos_ipp_cmd_node *c_node, | |
710 | struct drm_exynos_ipp_queue_buf *qbuf) | |
711 | { | |
712 | struct drm_exynos_ipp_mem_node *m_node; | |
713 | struct drm_exynos_ipp_buf_info buf_info; | |
714 | void *addr; | |
715 | int i; | |
716 | ||
717 | DRM_DEBUG_KMS("%s\n", __func__); | |
718 | ||
719 | mutex_lock(&c_node->mem_lock); | |
720 | ||
721 | m_node = kzalloc(sizeof(*m_node), GFP_KERNEL); | |
722 | if (!m_node) { | |
723 | DRM_ERROR("failed to allocate queue node.\n"); | |
724 | goto err_unlock; | |
725 | } | |
726 | ||
727 | /* clear base address for error handling */ | |
728 | memset(&buf_info, 0x0, sizeof(buf_info)); | |
729 | ||
730 | /* operations, buffer id */ | |
731 | m_node->ops_id = qbuf->ops_id; | |
732 | m_node->prop_id = qbuf->prop_id; | |
733 | m_node->buf_id = qbuf->buf_id; | |
734 | ||
735 | DRM_DEBUG_KMS("%s:m_node[0x%x]ops_id[%d]\n", __func__, | |
736 | (int)m_node, qbuf->ops_id); | |
737 | DRM_DEBUG_KMS("%s:prop_id[%d]buf_id[%d]\n", __func__, | |
738 | qbuf->prop_id, m_node->buf_id); | |
739 | ||
740 | for_each_ipp_planar(i) { | |
741 | DRM_DEBUG_KMS("%s:i[%d]handle[0x%x]\n", __func__, | |
742 | i, qbuf->handle[i]); | |
743 | ||
744 | /* get dma address by handle */ | |
745 | if (qbuf->handle[i]) { | |
746 | addr = exynos_drm_gem_get_dma_addr(drm_dev, | |
747 | qbuf->handle[i], file); | |
748 | if (IS_ERR(addr)) { | |
749 | DRM_ERROR("failed to get addr.\n"); | |
750 | goto err_clear; | |
751 | } | |
752 | ||
753 | buf_info.handles[i] = qbuf->handle[i]; | |
754 | buf_info.base[i] = *(dma_addr_t *) addr; | |
755 | DRM_DEBUG_KMS("%s:i[%d]base[0x%x]hd[0x%x]\n", | |
756 | __func__, i, buf_info.base[i], | |
757 | (int)buf_info.handles[i]); | |
758 | } | |
759 | } | |
760 | ||
761 | m_node->filp = file; | |
762 | m_node->buf_info = buf_info; | |
763 | list_add_tail(&m_node->list, &c_node->mem_list[qbuf->ops_id]); | |
764 | ||
765 | mutex_unlock(&c_node->mem_lock); | |
766 | return m_node; | |
767 | ||
768 | err_clear: | |
769 | kfree(m_node); | |
770 | err_unlock: | |
771 | mutex_unlock(&c_node->mem_lock); | |
772 | return ERR_PTR(-EFAULT); | |
773 | } | |
774 | ||
775 | static int ipp_put_mem_node(struct drm_device *drm_dev, | |
776 | struct drm_exynos_ipp_cmd_node *c_node, | |
777 | struct drm_exynos_ipp_mem_node *m_node) | |
778 | { | |
779 | int i; | |
780 | ||
781 | DRM_DEBUG_KMS("%s:node[0x%x]\n", __func__, (int)m_node); | |
782 | ||
783 | if (!m_node) { | |
784 | DRM_ERROR("invalid dequeue node.\n"); | |
785 | return -EFAULT; | |
786 | } | |
787 | ||
788 | if (list_empty(&m_node->list)) { | |
789 | DRM_ERROR("empty memory node.\n"); | |
790 | return -ENOMEM; | |
791 | } | |
792 | ||
793 | mutex_lock(&c_node->mem_lock); | |
794 | ||
795 | DRM_DEBUG_KMS("%s:ops_id[%d]\n", __func__, m_node->ops_id); | |
796 | ||
797 | /* put gem buffer */ | |
798 | for_each_ipp_planar(i) { | |
799 | unsigned long handle = m_node->buf_info.handles[i]; | |
800 | if (handle) | |
801 | exynos_drm_gem_put_dma_addr(drm_dev, handle, | |
802 | m_node->filp); | |
803 | } | |
804 | ||
805 | /* delete list in queue */ | |
806 | list_del(&m_node->list); | |
807 | kfree(m_node); | |
808 | ||
809 | mutex_unlock(&c_node->mem_lock); | |
810 | ||
811 | return 0; | |
812 | } | |
813 | ||
814 | static void ipp_free_event(struct drm_pending_event *event) | |
815 | { | |
816 | kfree(event); | |
817 | } | |
818 | ||
819 | static int ipp_get_event(struct drm_device *drm_dev, | |
820 | struct drm_file *file, | |
821 | struct drm_exynos_ipp_cmd_node *c_node, | |
822 | struct drm_exynos_ipp_queue_buf *qbuf) | |
823 | { | |
824 | struct drm_exynos_ipp_send_event *e; | |
825 | unsigned long flags; | |
826 | ||
827 | DRM_DEBUG_KMS("%s:ops_id[%d]buf_id[%d]\n", __func__, | |
828 | qbuf->ops_id, qbuf->buf_id); | |
829 | ||
830 | e = kzalloc(sizeof(*e), GFP_KERNEL); | |
831 | ||
832 | if (!e) { | |
833 | DRM_ERROR("failed to allocate event.\n"); | |
834 | spin_lock_irqsave(&drm_dev->event_lock, flags); | |
835 | file->event_space += sizeof(e->event); | |
836 | spin_unlock_irqrestore(&drm_dev->event_lock, flags); | |
837 | return -ENOMEM; | |
838 | } | |
839 | ||
840 | /* make event */ | |
841 | e->event.base.type = DRM_EXYNOS_IPP_EVENT; | |
842 | e->event.base.length = sizeof(e->event); | |
843 | e->event.user_data = qbuf->user_data; | |
844 | e->event.prop_id = qbuf->prop_id; | |
845 | e->event.buf_id[EXYNOS_DRM_OPS_DST] = qbuf->buf_id; | |
846 | e->base.event = &e->event.base; | |
847 | e->base.file_priv = file; | |
848 | e->base.destroy = ipp_free_event; | |
849 | list_add_tail(&e->base.link, &c_node->event_list); | |
850 | ||
851 | return 0; | |
852 | } | |
853 | ||
854 | static void ipp_put_event(struct drm_exynos_ipp_cmd_node *c_node, | |
855 | struct drm_exynos_ipp_queue_buf *qbuf) | |
856 | { | |
857 | struct drm_exynos_ipp_send_event *e, *te; | |
858 | int count = 0; | |
859 | ||
860 | DRM_DEBUG_KMS("%s\n", __func__); | |
861 | ||
862 | if (list_empty(&c_node->event_list)) { | |
863 | DRM_DEBUG_KMS("%s:event_list is empty.\n", __func__); | |
864 | return; | |
865 | } | |
866 | ||
867 | list_for_each_entry_safe(e, te, &c_node->event_list, base.link) { | |
868 | DRM_DEBUG_KMS("%s:count[%d]e[0x%x]\n", | |
869 | __func__, count++, (int)e); | |
870 | ||
871 | /* | |
872 | * quf == NULL condition means all event deletion. | |
873 | * stop operations want to delete all event list. | |
874 | * another case delete only same buf id. | |
875 | */ | |
876 | if (!qbuf) { | |
877 | /* delete list */ | |
878 | list_del(&e->base.link); | |
879 | kfree(e); | |
880 | } | |
881 | ||
882 | /* compare buffer id */ | |
883 | if (qbuf && (qbuf->buf_id == | |
884 | e->event.buf_id[EXYNOS_DRM_OPS_DST])) { | |
885 | /* delete list */ | |
886 | list_del(&e->base.link); | |
887 | kfree(e); | |
888 | return; | |
889 | } | |
890 | } | |
891 | } | |
892 | ||
0bc4a0aa | 893 | static void ipp_handle_cmd_work(struct device *dev, |
cb471f14 EK |
894 | struct exynos_drm_ippdrv *ippdrv, |
895 | struct drm_exynos_ipp_cmd_work *cmd_work, | |
896 | struct drm_exynos_ipp_cmd_node *c_node) | |
897 | { | |
898 | struct ipp_context *ctx = get_ipp_context(dev); | |
899 | ||
900 | cmd_work->ippdrv = ippdrv; | |
901 | cmd_work->c_node = c_node; | |
902 | queue_work(ctx->cmd_workq, (struct work_struct *)cmd_work); | |
903 | } | |
904 | ||
905 | static int ipp_queue_buf_with_run(struct device *dev, | |
906 | struct drm_exynos_ipp_cmd_node *c_node, | |
907 | struct drm_exynos_ipp_mem_node *m_node, | |
908 | struct drm_exynos_ipp_queue_buf *qbuf) | |
909 | { | |
910 | struct exynos_drm_ippdrv *ippdrv; | |
911 | struct drm_exynos_ipp_property *property; | |
912 | struct exynos_drm_ipp_ops *ops; | |
913 | int ret; | |
914 | ||
915 | DRM_DEBUG_KMS("%s\n", __func__); | |
916 | ||
917 | ippdrv = ipp_find_drv_by_handle(qbuf->prop_id); | |
f0250458 | 918 | if (IS_ERR(ippdrv)) { |
cb471f14 EK |
919 | DRM_ERROR("failed to get ipp driver.\n"); |
920 | return -EFAULT; | |
921 | } | |
922 | ||
923 | ops = ippdrv->ops[qbuf->ops_id]; | |
924 | if (!ops) { | |
925 | DRM_ERROR("failed to get ops.\n"); | |
926 | return -EFAULT; | |
927 | } | |
928 | ||
929 | property = &c_node->property; | |
930 | ||
931 | if (c_node->state != IPP_STATE_START) { | |
932 | DRM_DEBUG_KMS("%s:bypass for invalid state.\n" , __func__); | |
933 | return 0; | |
934 | } | |
935 | ||
936 | if (!ipp_check_mem_list(c_node)) { | |
937 | DRM_DEBUG_KMS("%s:empty memory.\n", __func__); | |
938 | return 0; | |
939 | } | |
940 | ||
941 | /* | |
942 | * If set destination buffer and enabled clock, | |
943 | * then m2m operations need start operations at queue_buf | |
944 | */ | |
945 | if (ipp_is_m2m_cmd(property->cmd)) { | |
946 | struct drm_exynos_ipp_cmd_work *cmd_work = c_node->start_work; | |
947 | ||
948 | cmd_work->ctrl = IPP_CTRL_PLAY; | |
949 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
950 | } else { | |
951 | ret = ipp_set_mem_node(ippdrv, c_node, m_node); | |
952 | if (ret) { | |
953 | DRM_ERROR("failed to set m node.\n"); | |
954 | return ret; | |
955 | } | |
956 | } | |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
961 | static void ipp_clean_queue_buf(struct drm_device *drm_dev, | |
962 | struct drm_exynos_ipp_cmd_node *c_node, | |
963 | struct drm_exynos_ipp_queue_buf *qbuf) | |
964 | { | |
965 | struct drm_exynos_ipp_mem_node *m_node, *tm_node; | |
966 | ||
967 | DRM_DEBUG_KMS("%s\n", __func__); | |
968 | ||
969 | if (!list_empty(&c_node->mem_list[qbuf->ops_id])) { | |
970 | /* delete list */ | |
971 | list_for_each_entry_safe(m_node, tm_node, | |
972 | &c_node->mem_list[qbuf->ops_id], list) { | |
973 | if (m_node->buf_id == qbuf->buf_id && | |
974 | m_node->ops_id == qbuf->ops_id) | |
975 | ipp_put_mem_node(drm_dev, c_node, m_node); | |
976 | } | |
977 | } | |
978 | } | |
979 | ||
980 | int exynos_drm_ipp_queue_buf(struct drm_device *drm_dev, void *data, | |
981 | struct drm_file *file) | |
982 | { | |
983 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
984 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
985 | struct device *dev = priv->dev; | |
986 | struct ipp_context *ctx = get_ipp_context(dev); | |
987 | struct drm_exynos_ipp_queue_buf *qbuf = data; | |
988 | struct drm_exynos_ipp_cmd_node *c_node; | |
989 | struct drm_exynos_ipp_mem_node *m_node; | |
990 | int ret; | |
991 | ||
992 | DRM_DEBUG_KMS("%s\n", __func__); | |
993 | ||
994 | if (!qbuf) { | |
995 | DRM_ERROR("invalid buf parameter.\n"); | |
996 | return -EINVAL; | |
997 | } | |
998 | ||
999 | if (qbuf->ops_id >= EXYNOS_DRM_OPS_MAX) { | |
1000 | DRM_ERROR("invalid ops parameter.\n"); | |
1001 | return -EINVAL; | |
1002 | } | |
1003 | ||
1004 | DRM_DEBUG_KMS("%s:prop_id[%d]ops_id[%s]buf_id[%d]buf_type[%d]\n", | |
1005 | __func__, qbuf->prop_id, qbuf->ops_id ? "dst" : "src", | |
1006 | qbuf->buf_id, qbuf->buf_type); | |
1007 | ||
1008 | /* find command node */ | |
1009 | c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, | |
1010 | qbuf->prop_id); | |
1011 | if (!c_node) { | |
1012 | DRM_ERROR("failed to get command node.\n"); | |
1013 | return -EFAULT; | |
1014 | } | |
1015 | ||
1016 | /* buffer control */ | |
1017 | switch (qbuf->buf_type) { | |
1018 | case IPP_BUF_ENQUEUE: | |
1019 | /* get memory node */ | |
1020 | m_node = ipp_get_mem_node(drm_dev, file, c_node, qbuf); | |
1021 | if (IS_ERR(m_node)) { | |
1022 | DRM_ERROR("failed to get m_node.\n"); | |
1023 | return PTR_ERR(m_node); | |
1024 | } | |
1025 | ||
1026 | /* | |
1027 | * first step get event for destination buffer. | |
1028 | * and second step when M2M case run with destination buffer | |
1029 | * if needed. | |
1030 | */ | |
1031 | if (qbuf->ops_id == EXYNOS_DRM_OPS_DST) { | |
1032 | /* get event for destination buffer */ | |
1033 | ret = ipp_get_event(drm_dev, file, c_node, qbuf); | |
1034 | if (ret) { | |
1035 | DRM_ERROR("failed to get event.\n"); | |
1036 | goto err_clean_node; | |
1037 | } | |
1038 | ||
1039 | /* | |
1040 | * M2M case run play control for streaming feature. | |
1041 | * other case set address and waiting. | |
1042 | */ | |
1043 | ret = ipp_queue_buf_with_run(dev, c_node, m_node, qbuf); | |
1044 | if (ret) { | |
1045 | DRM_ERROR("failed to run command.\n"); | |
1046 | goto err_clean_node; | |
1047 | } | |
1048 | } | |
1049 | break; | |
1050 | case IPP_BUF_DEQUEUE: | |
1051 | mutex_lock(&c_node->cmd_lock); | |
1052 | ||
1053 | /* put event for destination buffer */ | |
1054 | if (qbuf->ops_id == EXYNOS_DRM_OPS_DST) | |
1055 | ipp_put_event(c_node, qbuf); | |
1056 | ||
1057 | ipp_clean_queue_buf(drm_dev, c_node, qbuf); | |
1058 | ||
1059 | mutex_unlock(&c_node->cmd_lock); | |
1060 | break; | |
1061 | default: | |
1062 | DRM_ERROR("invalid buffer control.\n"); | |
1063 | return -EINVAL; | |
1064 | } | |
1065 | ||
1066 | return 0; | |
1067 | ||
1068 | err_clean_node: | |
1069 | DRM_ERROR("clean memory nodes.\n"); | |
1070 | ||
1071 | ipp_clean_queue_buf(drm_dev, c_node, qbuf); | |
1072 | return ret; | |
1073 | } | |
1074 | ||
1075 | static bool exynos_drm_ipp_check_valid(struct device *dev, | |
1076 | enum drm_exynos_ipp_ctrl ctrl, enum drm_exynos_ipp_state state) | |
1077 | { | |
1078 | DRM_DEBUG_KMS("%s\n", __func__); | |
1079 | ||
1080 | if (ctrl != IPP_CTRL_PLAY) { | |
1081 | if (pm_runtime_suspended(dev)) { | |
1082 | DRM_ERROR("pm:runtime_suspended.\n"); | |
1083 | goto err_status; | |
1084 | } | |
1085 | } | |
1086 | ||
1087 | switch (ctrl) { | |
1088 | case IPP_CTRL_PLAY: | |
1089 | if (state != IPP_STATE_IDLE) | |
1090 | goto err_status; | |
1091 | break; | |
1092 | case IPP_CTRL_STOP: | |
1093 | if (state == IPP_STATE_STOP) | |
1094 | goto err_status; | |
1095 | break; | |
1096 | case IPP_CTRL_PAUSE: | |
1097 | if (state != IPP_STATE_START) | |
1098 | goto err_status; | |
1099 | break; | |
1100 | case IPP_CTRL_RESUME: | |
1101 | if (state != IPP_STATE_STOP) | |
1102 | goto err_status; | |
1103 | break; | |
1104 | default: | |
1105 | DRM_ERROR("invalid state.\n"); | |
1106 | goto err_status; | |
1107 | break; | |
1108 | } | |
1109 | ||
1110 | return true; | |
1111 | ||
1112 | err_status: | |
1113 | DRM_ERROR("invalid status:ctrl[%d]state[%d]\n", ctrl, state); | |
1114 | return false; | |
1115 | } | |
1116 | ||
1117 | int exynos_drm_ipp_cmd_ctrl(struct drm_device *drm_dev, void *data, | |
1118 | struct drm_file *file) | |
1119 | { | |
1120 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
1121 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
1122 | struct exynos_drm_ippdrv *ippdrv = NULL; | |
1123 | struct device *dev = priv->dev; | |
1124 | struct ipp_context *ctx = get_ipp_context(dev); | |
1125 | struct drm_exynos_ipp_cmd_ctrl *cmd_ctrl = data; | |
1126 | struct drm_exynos_ipp_cmd_work *cmd_work; | |
1127 | struct drm_exynos_ipp_cmd_node *c_node; | |
1128 | ||
1129 | DRM_DEBUG_KMS("%s\n", __func__); | |
1130 | ||
1131 | if (!ctx) { | |
1132 | DRM_ERROR("invalid context.\n"); | |
1133 | return -EINVAL; | |
1134 | } | |
1135 | ||
1136 | if (!cmd_ctrl) { | |
1137 | DRM_ERROR("invalid control parameter.\n"); | |
1138 | return -EINVAL; | |
1139 | } | |
1140 | ||
1141 | DRM_DEBUG_KMS("%s:ctrl[%d]prop_id[%d]\n", __func__, | |
1142 | cmd_ctrl->ctrl, cmd_ctrl->prop_id); | |
1143 | ||
1144 | ippdrv = ipp_find_drv_by_handle(cmd_ctrl->prop_id); | |
1145 | if (IS_ERR(ippdrv)) { | |
1146 | DRM_ERROR("failed to get ipp driver.\n"); | |
1147 | return PTR_ERR(ippdrv); | |
1148 | } | |
1149 | ||
1150 | c_node = ipp_find_obj(&ctx->prop_idr, &ctx->prop_lock, | |
1151 | cmd_ctrl->prop_id); | |
1152 | if (!c_node) { | |
1153 | DRM_ERROR("invalid command node list.\n"); | |
1154 | return -EINVAL; | |
1155 | } | |
1156 | ||
1157 | if (!exynos_drm_ipp_check_valid(ippdrv->dev, cmd_ctrl->ctrl, | |
1158 | c_node->state)) { | |
1159 | DRM_ERROR("invalid state.\n"); | |
1160 | return -EINVAL; | |
1161 | } | |
1162 | ||
1163 | switch (cmd_ctrl->ctrl) { | |
1164 | case IPP_CTRL_PLAY: | |
1165 | if (pm_runtime_suspended(ippdrv->dev)) | |
1166 | pm_runtime_get_sync(ippdrv->dev); | |
1167 | c_node->state = IPP_STATE_START; | |
1168 | ||
1169 | cmd_work = c_node->start_work; | |
1170 | cmd_work->ctrl = cmd_ctrl->ctrl; | |
1171 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
1172 | c_node->state = IPP_STATE_START; | |
1173 | break; | |
1174 | case IPP_CTRL_STOP: | |
1175 | cmd_work = c_node->stop_work; | |
1176 | cmd_work->ctrl = cmd_ctrl->ctrl; | |
1177 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
1178 | ||
1179 | if (!wait_for_completion_timeout(&c_node->stop_complete, | |
1180 | msecs_to_jiffies(300))) { | |
1181 | DRM_ERROR("timeout stop:prop_id[%d]\n", | |
1182 | c_node->property.prop_id); | |
1183 | } | |
1184 | ||
1185 | c_node->state = IPP_STATE_STOP; | |
1186 | ippdrv->dedicated = false; | |
1187 | ipp_clean_cmd_node(c_node); | |
1188 | ||
1189 | if (list_empty(&ippdrv->cmd_list)) | |
1190 | pm_runtime_put_sync(ippdrv->dev); | |
1191 | break; | |
1192 | case IPP_CTRL_PAUSE: | |
1193 | cmd_work = c_node->stop_work; | |
1194 | cmd_work->ctrl = cmd_ctrl->ctrl; | |
1195 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
1196 | ||
1197 | if (!wait_for_completion_timeout(&c_node->stop_complete, | |
1198 | msecs_to_jiffies(200))) { | |
1199 | DRM_ERROR("timeout stop:prop_id[%d]\n", | |
1200 | c_node->property.prop_id); | |
1201 | } | |
1202 | ||
1203 | c_node->state = IPP_STATE_STOP; | |
1204 | break; | |
1205 | case IPP_CTRL_RESUME: | |
1206 | c_node->state = IPP_STATE_START; | |
1207 | cmd_work = c_node->start_work; | |
1208 | cmd_work->ctrl = cmd_ctrl->ctrl; | |
1209 | ipp_handle_cmd_work(dev, ippdrv, cmd_work, c_node); | |
1210 | break; | |
1211 | default: | |
1212 | DRM_ERROR("could not support this state currently.\n"); | |
1213 | return -EINVAL; | |
1214 | } | |
1215 | ||
1216 | DRM_DEBUG_KMS("%s:done ctrl[%d]prop_id[%d]\n", __func__, | |
1217 | cmd_ctrl->ctrl, cmd_ctrl->prop_id); | |
1218 | ||
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | int exynos_drm_ippnb_register(struct notifier_block *nb) | |
1223 | { | |
1224 | return blocking_notifier_chain_register( | |
1225 | &exynos_drm_ippnb_list, nb); | |
1226 | } | |
1227 | ||
1228 | int exynos_drm_ippnb_unregister(struct notifier_block *nb) | |
1229 | { | |
1230 | return blocking_notifier_chain_unregister( | |
1231 | &exynos_drm_ippnb_list, nb); | |
1232 | } | |
1233 | ||
1234 | int exynos_drm_ippnb_send_event(unsigned long val, void *v) | |
1235 | { | |
1236 | return blocking_notifier_call_chain( | |
1237 | &exynos_drm_ippnb_list, val, v); | |
1238 | } | |
1239 | ||
1240 | static int ipp_set_property(struct exynos_drm_ippdrv *ippdrv, | |
1241 | struct drm_exynos_ipp_property *property) | |
1242 | { | |
1243 | struct exynos_drm_ipp_ops *ops = NULL; | |
1244 | bool swap = false; | |
1245 | int ret, i; | |
1246 | ||
1247 | if (!property) { | |
1248 | DRM_ERROR("invalid property parameter.\n"); | |
1249 | return -EINVAL; | |
1250 | } | |
1251 | ||
1252 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, property->prop_id); | |
1253 | ||
1254 | /* reset h/w block */ | |
1255 | if (ippdrv->reset && | |
1256 | ippdrv->reset(ippdrv->dev)) { | |
1257 | DRM_ERROR("failed to reset.\n"); | |
1258 | return -EINVAL; | |
1259 | } | |
1260 | ||
1261 | /* set source,destination operations */ | |
1262 | for_each_ipp_ops(i) { | |
1263 | struct drm_exynos_ipp_config *config = | |
1264 | &property->config[i]; | |
1265 | ||
1266 | ops = ippdrv->ops[i]; | |
1267 | if (!ops || !config) { | |
1268 | DRM_ERROR("not support ops and config.\n"); | |
1269 | return -EINVAL; | |
1270 | } | |
1271 | ||
1272 | /* set format */ | |
1273 | if (ops->set_fmt) { | |
1274 | ret = ops->set_fmt(ippdrv->dev, config->fmt); | |
1275 | if (ret) { | |
1276 | DRM_ERROR("not support format.\n"); | |
1277 | return ret; | |
1278 | } | |
1279 | } | |
1280 | ||
1281 | /* set transform for rotation, flip */ | |
1282 | if (ops->set_transf) { | |
1283 | ret = ops->set_transf(ippdrv->dev, config->degree, | |
1284 | config->flip, &swap); | |
1285 | if (ret) { | |
1286 | DRM_ERROR("not support tranf.\n"); | |
1287 | return -EINVAL; | |
1288 | } | |
1289 | } | |
1290 | ||
1291 | /* set size */ | |
1292 | if (ops->set_size) { | |
1293 | ret = ops->set_size(ippdrv->dev, swap, &config->pos, | |
1294 | &config->sz); | |
1295 | if (ret) { | |
1296 | DRM_ERROR("not support size.\n"); | |
1297 | return ret; | |
1298 | } | |
1299 | } | |
1300 | } | |
1301 | ||
1302 | return 0; | |
1303 | } | |
1304 | ||
1305 | static int ipp_start_property(struct exynos_drm_ippdrv *ippdrv, | |
1306 | struct drm_exynos_ipp_cmd_node *c_node) | |
1307 | { | |
1308 | struct drm_exynos_ipp_mem_node *m_node; | |
1309 | struct drm_exynos_ipp_property *property = &c_node->property; | |
1310 | struct list_head *head; | |
1311 | int ret, i; | |
1312 | ||
1313 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, property->prop_id); | |
1314 | ||
1315 | /* store command info in ippdrv */ | |
7259c3d6 | 1316 | ippdrv->c_node = c_node; |
cb471f14 EK |
1317 | |
1318 | if (!ipp_check_mem_list(c_node)) { | |
1319 | DRM_DEBUG_KMS("%s:empty memory.\n", __func__); | |
1320 | return -ENOMEM; | |
1321 | } | |
1322 | ||
1323 | /* set current property in ippdrv */ | |
1324 | ret = ipp_set_property(ippdrv, property); | |
1325 | if (ret) { | |
1326 | DRM_ERROR("failed to set property.\n"); | |
7259c3d6 | 1327 | ippdrv->c_node = NULL; |
cb471f14 EK |
1328 | return ret; |
1329 | } | |
1330 | ||
1331 | /* check command */ | |
1332 | switch (property->cmd) { | |
1333 | case IPP_CMD_M2M: | |
1334 | for_each_ipp_ops(i) { | |
1335 | /* source/destination memory list */ | |
1336 | head = &c_node->mem_list[i]; | |
1337 | ||
1338 | m_node = list_first_entry(head, | |
1339 | struct drm_exynos_ipp_mem_node, list); | |
1340 | if (!m_node) { | |
1341 | DRM_ERROR("failed to get node.\n"); | |
1342 | ret = -EFAULT; | |
1343 | return ret; | |
1344 | } | |
1345 | ||
1346 | DRM_DEBUG_KMS("%s:m_node[0x%x]\n", | |
1347 | __func__, (int)m_node); | |
1348 | ||
1349 | ret = ipp_set_mem_node(ippdrv, c_node, m_node); | |
1350 | if (ret) { | |
1351 | DRM_ERROR("failed to set m node.\n"); | |
1352 | return ret; | |
1353 | } | |
1354 | } | |
1355 | break; | |
1356 | case IPP_CMD_WB: | |
1357 | /* destination memory list */ | |
1358 | head = &c_node->mem_list[EXYNOS_DRM_OPS_DST]; | |
1359 | ||
1360 | list_for_each_entry(m_node, head, list) { | |
1361 | ret = ipp_set_mem_node(ippdrv, c_node, m_node); | |
1362 | if (ret) { | |
1363 | DRM_ERROR("failed to set m node.\n"); | |
1364 | return ret; | |
1365 | } | |
1366 | } | |
1367 | break; | |
1368 | case IPP_CMD_OUTPUT: | |
1369 | /* source memory list */ | |
1370 | head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC]; | |
1371 | ||
1372 | list_for_each_entry(m_node, head, list) { | |
1373 | ret = ipp_set_mem_node(ippdrv, c_node, m_node); | |
1374 | if (ret) { | |
1375 | DRM_ERROR("failed to set m node.\n"); | |
1376 | return ret; | |
1377 | } | |
1378 | } | |
1379 | break; | |
1380 | default: | |
1381 | DRM_ERROR("invalid operations.\n"); | |
1382 | return -EINVAL; | |
1383 | } | |
1384 | ||
1385 | DRM_DEBUG_KMS("%s:cmd[%d]\n", __func__, property->cmd); | |
1386 | ||
1387 | /* start operations */ | |
1388 | if (ippdrv->start) { | |
1389 | ret = ippdrv->start(ippdrv->dev, property->cmd); | |
1390 | if (ret) { | |
1391 | DRM_ERROR("failed to start ops.\n"); | |
1392 | return ret; | |
1393 | } | |
1394 | } | |
1395 | ||
1396 | return 0; | |
1397 | } | |
1398 | ||
1399 | static int ipp_stop_property(struct drm_device *drm_dev, | |
1400 | struct exynos_drm_ippdrv *ippdrv, | |
1401 | struct drm_exynos_ipp_cmd_node *c_node) | |
1402 | { | |
1403 | struct drm_exynos_ipp_mem_node *m_node, *tm_node; | |
1404 | struct drm_exynos_ipp_property *property = &c_node->property; | |
1405 | struct list_head *head; | |
1406 | int ret = 0, i; | |
1407 | ||
1408 | DRM_DEBUG_KMS("%s:prop_id[%d]\n", __func__, property->prop_id); | |
1409 | ||
1410 | /* put event */ | |
1411 | ipp_put_event(c_node, NULL); | |
1412 | ||
1413 | /* check command */ | |
1414 | switch (property->cmd) { | |
1415 | case IPP_CMD_M2M: | |
1416 | for_each_ipp_ops(i) { | |
1417 | /* source/destination memory list */ | |
1418 | head = &c_node->mem_list[i]; | |
1419 | ||
1420 | if (list_empty(head)) { | |
1421 | DRM_DEBUG_KMS("%s:mem_list is empty.\n", | |
1422 | __func__); | |
1423 | break; | |
1424 | } | |
1425 | ||
1426 | list_for_each_entry_safe(m_node, tm_node, | |
1427 | head, list) { | |
1428 | ret = ipp_put_mem_node(drm_dev, c_node, | |
1429 | m_node); | |
1430 | if (ret) { | |
1431 | DRM_ERROR("failed to put m_node.\n"); | |
1432 | goto err_clear; | |
1433 | } | |
1434 | } | |
1435 | } | |
1436 | break; | |
1437 | case IPP_CMD_WB: | |
1438 | /* destination memory list */ | |
1439 | head = &c_node->mem_list[EXYNOS_DRM_OPS_DST]; | |
1440 | ||
1441 | if (list_empty(head)) { | |
1442 | DRM_DEBUG_KMS("%s:mem_list is empty.\n", __func__); | |
1443 | break; | |
1444 | } | |
1445 | ||
1446 | list_for_each_entry_safe(m_node, tm_node, head, list) { | |
1447 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1448 | if (ret) { | |
1449 | DRM_ERROR("failed to put m_node.\n"); | |
1450 | goto err_clear; | |
1451 | } | |
1452 | } | |
1453 | break; | |
1454 | case IPP_CMD_OUTPUT: | |
1455 | /* source memory list */ | |
1456 | head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC]; | |
1457 | ||
1458 | if (list_empty(head)) { | |
1459 | DRM_DEBUG_KMS("%s:mem_list is empty.\n", __func__); | |
1460 | break; | |
1461 | } | |
1462 | ||
1463 | list_for_each_entry_safe(m_node, tm_node, head, list) { | |
1464 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1465 | if (ret) { | |
1466 | DRM_ERROR("failed to put m_node.\n"); | |
1467 | goto err_clear; | |
1468 | } | |
1469 | } | |
1470 | break; | |
1471 | default: | |
1472 | DRM_ERROR("invalid operations.\n"); | |
1473 | ret = -EINVAL; | |
1474 | goto err_clear; | |
1475 | } | |
1476 | ||
1477 | err_clear: | |
1478 | /* stop operations */ | |
1479 | if (ippdrv->stop) | |
1480 | ippdrv->stop(ippdrv->dev, property->cmd); | |
1481 | ||
1482 | return ret; | |
1483 | } | |
1484 | ||
1485 | void ipp_sched_cmd(struct work_struct *work) | |
1486 | { | |
1487 | struct drm_exynos_ipp_cmd_work *cmd_work = | |
1488 | (struct drm_exynos_ipp_cmd_work *)work; | |
1489 | struct exynos_drm_ippdrv *ippdrv; | |
1490 | struct drm_exynos_ipp_cmd_node *c_node; | |
1491 | struct drm_exynos_ipp_property *property; | |
1492 | int ret; | |
1493 | ||
1494 | DRM_DEBUG_KMS("%s\n", __func__); | |
1495 | ||
1496 | ippdrv = cmd_work->ippdrv; | |
1497 | if (!ippdrv) { | |
1498 | DRM_ERROR("invalid ippdrv list.\n"); | |
1499 | return; | |
1500 | } | |
1501 | ||
1502 | c_node = cmd_work->c_node; | |
1503 | if (!c_node) { | |
1504 | DRM_ERROR("invalid command node list.\n"); | |
1505 | return; | |
1506 | } | |
1507 | ||
1508 | mutex_lock(&c_node->cmd_lock); | |
1509 | ||
1510 | property = &c_node->property; | |
cb471f14 EK |
1511 | |
1512 | switch (cmd_work->ctrl) { | |
1513 | case IPP_CTRL_PLAY: | |
1514 | case IPP_CTRL_RESUME: | |
1515 | ret = ipp_start_property(ippdrv, c_node); | |
1516 | if (ret) { | |
1517 | DRM_ERROR("failed to start property:prop_id[%d]\n", | |
1518 | c_node->property.prop_id); | |
1519 | goto err_unlock; | |
1520 | } | |
1521 | ||
1522 | /* | |
1523 | * M2M case supports wait_completion of transfer. | |
1524 | * because M2M case supports single unit operation | |
1525 | * with multiple queue. | |
1526 | * M2M need to wait completion of data transfer. | |
1527 | */ | |
1528 | if (ipp_is_m2m_cmd(property->cmd)) { | |
1529 | if (!wait_for_completion_timeout | |
1530 | (&c_node->start_complete, msecs_to_jiffies(200))) { | |
1531 | DRM_ERROR("timeout event:prop_id[%d]\n", | |
1532 | c_node->property.prop_id); | |
1533 | goto err_unlock; | |
1534 | } | |
1535 | } | |
1536 | break; | |
1537 | case IPP_CTRL_STOP: | |
1538 | case IPP_CTRL_PAUSE: | |
1539 | ret = ipp_stop_property(ippdrv->drm_dev, ippdrv, | |
1540 | c_node); | |
1541 | if (ret) { | |
1542 | DRM_ERROR("failed to stop property.\n"); | |
1543 | goto err_unlock; | |
1544 | } | |
1545 | ||
1546 | complete(&c_node->stop_complete); | |
1547 | break; | |
1548 | default: | |
1549 | DRM_ERROR("unknown control type\n"); | |
1550 | break; | |
1551 | } | |
1552 | ||
1553 | DRM_DEBUG_KMS("%s:ctrl[%d] done.\n", __func__, cmd_work->ctrl); | |
1554 | ||
1555 | err_unlock: | |
1556 | mutex_unlock(&c_node->cmd_lock); | |
1557 | } | |
1558 | ||
1559 | static int ipp_send_event(struct exynos_drm_ippdrv *ippdrv, | |
1560 | struct drm_exynos_ipp_cmd_node *c_node, int *buf_id) | |
1561 | { | |
1562 | struct drm_device *drm_dev = ippdrv->drm_dev; | |
1563 | struct drm_exynos_ipp_property *property = &c_node->property; | |
1564 | struct drm_exynos_ipp_mem_node *m_node; | |
1565 | struct drm_exynos_ipp_queue_buf qbuf; | |
1566 | struct drm_exynos_ipp_send_event *e; | |
1567 | struct list_head *head; | |
1568 | struct timeval now; | |
1569 | unsigned long flags; | |
1570 | u32 tbuf_id[EXYNOS_DRM_OPS_MAX] = {0, }; | |
1571 | int ret, i; | |
1572 | ||
1573 | for_each_ipp_ops(i) | |
1574 | DRM_DEBUG_KMS("%s:%s buf_id[%d]\n", __func__, | |
1575 | i ? "dst" : "src", buf_id[i]); | |
1576 | ||
1577 | if (!drm_dev) { | |
1578 | DRM_ERROR("failed to get drm_dev.\n"); | |
1579 | return -EINVAL; | |
1580 | } | |
1581 | ||
1582 | if (!property) { | |
1583 | DRM_ERROR("failed to get property.\n"); | |
1584 | return -EINVAL; | |
1585 | } | |
1586 | ||
1587 | if (list_empty(&c_node->event_list)) { | |
1588 | DRM_DEBUG_KMS("%s:event list is empty.\n", __func__); | |
1589 | return 0; | |
1590 | } | |
1591 | ||
1592 | if (!ipp_check_mem_list(c_node)) { | |
1593 | DRM_DEBUG_KMS("%s:empty memory.\n", __func__); | |
1594 | return 0; | |
1595 | } | |
1596 | ||
1597 | /* check command */ | |
1598 | switch (property->cmd) { | |
1599 | case IPP_CMD_M2M: | |
1600 | for_each_ipp_ops(i) { | |
1601 | /* source/destination memory list */ | |
1602 | head = &c_node->mem_list[i]; | |
1603 | ||
1604 | m_node = list_first_entry(head, | |
1605 | struct drm_exynos_ipp_mem_node, list); | |
1606 | if (!m_node) { | |
1607 | DRM_ERROR("empty memory node.\n"); | |
1608 | return -ENOMEM; | |
1609 | } | |
1610 | ||
1611 | tbuf_id[i] = m_node->buf_id; | |
1612 | DRM_DEBUG_KMS("%s:%s buf_id[%d]\n", __func__, | |
1613 | i ? "dst" : "src", tbuf_id[i]); | |
1614 | ||
1615 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1616 | if (ret) | |
1617 | DRM_ERROR("failed to put m_node.\n"); | |
1618 | } | |
1619 | break; | |
1620 | case IPP_CMD_WB: | |
1621 | /* clear buf for finding */ | |
1622 | memset(&qbuf, 0x0, sizeof(qbuf)); | |
1623 | qbuf.ops_id = EXYNOS_DRM_OPS_DST; | |
1624 | qbuf.buf_id = buf_id[EXYNOS_DRM_OPS_DST]; | |
1625 | ||
1626 | /* get memory node entry */ | |
1627 | m_node = ipp_find_mem_node(c_node, &qbuf); | |
1628 | if (!m_node) { | |
1629 | DRM_ERROR("empty memory node.\n"); | |
1630 | return -ENOMEM; | |
1631 | } | |
1632 | ||
1633 | tbuf_id[EXYNOS_DRM_OPS_DST] = m_node->buf_id; | |
1634 | ||
1635 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1636 | if (ret) | |
1637 | DRM_ERROR("failed to put m_node.\n"); | |
1638 | break; | |
1639 | case IPP_CMD_OUTPUT: | |
1640 | /* source memory list */ | |
1641 | head = &c_node->mem_list[EXYNOS_DRM_OPS_SRC]; | |
1642 | ||
1643 | m_node = list_first_entry(head, | |
1644 | struct drm_exynos_ipp_mem_node, list); | |
1645 | if (!m_node) { | |
1646 | DRM_ERROR("empty memory node.\n"); | |
1647 | return -ENOMEM; | |
1648 | } | |
1649 | ||
1650 | tbuf_id[EXYNOS_DRM_OPS_SRC] = m_node->buf_id; | |
1651 | ||
1652 | ret = ipp_put_mem_node(drm_dev, c_node, m_node); | |
1653 | if (ret) | |
1654 | DRM_ERROR("failed to put m_node.\n"); | |
1655 | break; | |
1656 | default: | |
1657 | DRM_ERROR("invalid operations.\n"); | |
1658 | return -EINVAL; | |
1659 | } | |
1660 | ||
1661 | if (tbuf_id[EXYNOS_DRM_OPS_DST] != buf_id[EXYNOS_DRM_OPS_DST]) | |
1662 | DRM_ERROR("failed to match buf_id[%d %d]prop_id[%d]\n", | |
1663 | tbuf_id[1], buf_id[1], property->prop_id); | |
1664 | ||
1665 | /* | |
1666 | * command node have event list of destination buffer | |
1667 | * If destination buffer enqueue to mem list, | |
1668 | * then we make event and link to event list tail. | |
1669 | * so, we get first event for first enqueued buffer. | |
1670 | */ | |
1671 | e = list_first_entry(&c_node->event_list, | |
1672 | struct drm_exynos_ipp_send_event, base.link); | |
1673 | ||
1674 | if (!e) { | |
1675 | DRM_ERROR("empty event.\n"); | |
1676 | return -EINVAL; | |
1677 | } | |
1678 | ||
1679 | do_gettimeofday(&now); | |
1680 | DRM_DEBUG_KMS("%s:tv_sec[%ld]tv_usec[%ld]\n" | |
1681 | , __func__, now.tv_sec, now.tv_usec); | |
1682 | e->event.tv_sec = now.tv_sec; | |
1683 | e->event.tv_usec = now.tv_usec; | |
1684 | e->event.prop_id = property->prop_id; | |
1685 | ||
1686 | /* set buffer id about source destination */ | |
1687 | for_each_ipp_ops(i) | |
1688 | e->event.buf_id[i] = tbuf_id[i]; | |
1689 | ||
1690 | spin_lock_irqsave(&drm_dev->event_lock, flags); | |
1691 | list_move_tail(&e->base.link, &e->base.file_priv->event_list); | |
1692 | wake_up_interruptible(&e->base.file_priv->event_wait); | |
1693 | spin_unlock_irqrestore(&drm_dev->event_lock, flags); | |
1694 | ||
1695 | DRM_DEBUG_KMS("%s:done cmd[%d]prop_id[%d]buf_id[%d]\n", __func__, | |
1696 | property->cmd, property->prop_id, tbuf_id[EXYNOS_DRM_OPS_DST]); | |
1697 | ||
1698 | return 0; | |
1699 | } | |
1700 | ||
1701 | void ipp_sched_event(struct work_struct *work) | |
1702 | { | |
1703 | struct drm_exynos_ipp_event_work *event_work = | |
1704 | (struct drm_exynos_ipp_event_work *)work; | |
1705 | struct exynos_drm_ippdrv *ippdrv; | |
1706 | struct drm_exynos_ipp_cmd_node *c_node; | |
1707 | int ret; | |
1708 | ||
1709 | if (!event_work) { | |
1710 | DRM_ERROR("failed to get event_work.\n"); | |
1711 | return; | |
1712 | } | |
1713 | ||
1714 | DRM_DEBUG_KMS("%s:buf_id[%d]\n", __func__, | |
1715 | event_work->buf_id[EXYNOS_DRM_OPS_DST]); | |
1716 | ||
1717 | ippdrv = event_work->ippdrv; | |
1718 | if (!ippdrv) { | |
1719 | DRM_ERROR("failed to get ipp driver.\n"); | |
1720 | return; | |
1721 | } | |
1722 | ||
7259c3d6 | 1723 | c_node = ippdrv->c_node; |
cb471f14 EK |
1724 | if (!c_node) { |
1725 | DRM_ERROR("failed to get command node.\n"); | |
1726 | return; | |
1727 | } | |
1728 | ||
1729 | /* | |
1730 | * IPP supports command thread, event thread synchronization. | |
1731 | * If IPP close immediately from user land, then IPP make | |
1732 | * synchronization with command thread, so make complete event. | |
1733 | * or going out operations. | |
1734 | */ | |
1735 | if (c_node->state != IPP_STATE_START) { | |
1736 | DRM_DEBUG_KMS("%s:bypass state[%d]prop_id[%d]\n", | |
1737 | __func__, c_node->state, c_node->property.prop_id); | |
1738 | goto err_completion; | |
1739 | } | |
1740 | ||
1741 | mutex_lock(&c_node->event_lock); | |
1742 | ||
1743 | ret = ipp_send_event(ippdrv, c_node, event_work->buf_id); | |
1744 | if (ret) { | |
1745 | DRM_ERROR("failed to send event.\n"); | |
1746 | goto err_completion; | |
1747 | } | |
1748 | ||
1749 | err_completion: | |
1750 | if (ipp_is_m2m_cmd(c_node->property.cmd)) | |
1751 | complete(&c_node->start_complete); | |
1752 | ||
1753 | mutex_unlock(&c_node->event_lock); | |
1754 | } | |
1755 | ||
1756 | static int ipp_subdrv_probe(struct drm_device *drm_dev, struct device *dev) | |
1757 | { | |
1758 | struct ipp_context *ctx = get_ipp_context(dev); | |
1759 | struct exynos_drm_ippdrv *ippdrv; | |
1760 | int ret, count = 0; | |
1761 | ||
1762 | DRM_DEBUG_KMS("%s\n", __func__); | |
1763 | ||
1764 | /* get ipp driver entry */ | |
1765 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
1766 | ippdrv->drm_dev = drm_dev; | |
1767 | ||
1768 | ret = ipp_create_id(&ctx->ipp_idr, &ctx->ipp_lock, ippdrv, | |
1769 | &ippdrv->ipp_id); | |
1770 | if (ret) { | |
1771 | DRM_ERROR("failed to create id.\n"); | |
1772 | goto err_idr; | |
1773 | } | |
1774 | ||
1775 | DRM_DEBUG_KMS("%s:count[%d]ippdrv[0x%x]ipp_id[%d]\n", __func__, | |
1776 | count++, (int)ippdrv, ippdrv->ipp_id); | |
1777 | ||
1778 | if (ippdrv->ipp_id == 0) { | |
1779 | DRM_ERROR("failed to get ipp_id[%d]\n", | |
1780 | ippdrv->ipp_id); | |
1781 | goto err_idr; | |
1782 | } | |
1783 | ||
1784 | /* store parent device for node */ | |
1785 | ippdrv->parent_dev = dev; | |
1786 | ||
1787 | /* store event work queue and handler */ | |
1788 | ippdrv->event_workq = ctx->event_workq; | |
1789 | ippdrv->sched_event = ipp_sched_event; | |
1790 | INIT_LIST_HEAD(&ippdrv->cmd_list); | |
c12e2617 EK |
1791 | |
1792 | if (is_drm_iommu_supported(drm_dev)) { | |
1793 | ret = drm_iommu_attach_device(drm_dev, ippdrv->dev); | |
1794 | if (ret) { | |
1795 | DRM_ERROR("failed to activate iommu\n"); | |
1796 | goto err_iommu; | |
1797 | } | |
1798 | } | |
cb471f14 EK |
1799 | } |
1800 | ||
1801 | return 0; | |
1802 | ||
c12e2617 EK |
1803 | err_iommu: |
1804 | /* get ipp driver entry */ | |
1805 | list_for_each_entry_reverse(ippdrv, &exynos_drm_ippdrv_list, drv_list) | |
1806 | if (is_drm_iommu_supported(drm_dev)) | |
1807 | drm_iommu_detach_device(drm_dev, ippdrv->dev); | |
1808 | ||
cb471f14 | 1809 | err_idr: |
cb471f14 EK |
1810 | idr_destroy(&ctx->ipp_idr); |
1811 | idr_destroy(&ctx->prop_idr); | |
1812 | return ret; | |
1813 | } | |
1814 | ||
1815 | static void ipp_subdrv_remove(struct drm_device *drm_dev, struct device *dev) | |
1816 | { | |
1817 | struct exynos_drm_ippdrv *ippdrv; | |
1818 | ||
1819 | DRM_DEBUG_KMS("%s\n", __func__); | |
1820 | ||
1821 | /* get ipp driver entry */ | |
1822 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
c12e2617 EK |
1823 | if (is_drm_iommu_supported(drm_dev)) |
1824 | drm_iommu_detach_device(drm_dev, ippdrv->dev); | |
1825 | ||
cb471f14 EK |
1826 | ippdrv->drm_dev = NULL; |
1827 | exynos_drm_ippdrv_unregister(ippdrv); | |
1828 | } | |
1829 | } | |
1830 | ||
1831 | static int ipp_subdrv_open(struct drm_device *drm_dev, struct device *dev, | |
1832 | struct drm_file *file) | |
1833 | { | |
1834 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
1835 | struct exynos_drm_ipp_private *priv; | |
1836 | ||
1837 | DRM_DEBUG_KMS("%s\n", __func__); | |
1838 | ||
1839 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
1840 | if (!priv) { | |
1841 | DRM_ERROR("failed to allocate priv.\n"); | |
1842 | return -ENOMEM; | |
1843 | } | |
1844 | priv->dev = dev; | |
1845 | file_priv->ipp_priv = priv; | |
1846 | ||
1847 | INIT_LIST_HEAD(&priv->event_list); | |
1848 | ||
1849 | DRM_DEBUG_KMS("%s:done priv[0x%x]\n", __func__, (int)priv); | |
1850 | ||
1851 | return 0; | |
1852 | } | |
1853 | ||
1854 | static void ipp_subdrv_close(struct drm_device *drm_dev, struct device *dev, | |
1855 | struct drm_file *file) | |
1856 | { | |
1857 | struct drm_exynos_file_private *file_priv = file->driver_priv; | |
1858 | struct exynos_drm_ipp_private *priv = file_priv->ipp_priv; | |
1859 | struct exynos_drm_ippdrv *ippdrv = NULL; | |
1860 | struct drm_exynos_ipp_cmd_node *c_node, *tc_node; | |
1861 | int count = 0; | |
1862 | ||
1863 | DRM_DEBUG_KMS("%s:for priv[0x%x]\n", __func__, (int)priv); | |
1864 | ||
1865 | if (list_empty(&exynos_drm_ippdrv_list)) { | |
1866 | DRM_DEBUG_KMS("%s:ippdrv_list is empty.\n", __func__); | |
1867 | goto err_clear; | |
1868 | } | |
1869 | ||
1870 | list_for_each_entry(ippdrv, &exynos_drm_ippdrv_list, drv_list) { | |
1871 | if (list_empty(&ippdrv->cmd_list)) | |
1872 | continue; | |
1873 | ||
1874 | list_for_each_entry_safe(c_node, tc_node, | |
1875 | &ippdrv->cmd_list, list) { | |
1876 | DRM_DEBUG_KMS("%s:count[%d]ippdrv[0x%x]\n", | |
1877 | __func__, count++, (int)ippdrv); | |
1878 | ||
1879 | if (c_node->priv == priv) { | |
1880 | /* | |
1881 | * userland goto unnormal state. process killed. | |
1882 | * and close the file. | |
1883 | * so, IPP didn't called stop cmd ctrl. | |
1884 | * so, we are make stop operation in this state. | |
1885 | */ | |
1886 | if (c_node->state == IPP_STATE_START) { | |
1887 | ipp_stop_property(drm_dev, ippdrv, | |
1888 | c_node); | |
1889 | c_node->state = IPP_STATE_STOP; | |
1890 | } | |
1891 | ||
1892 | ippdrv->dedicated = false; | |
1893 | ipp_clean_cmd_node(c_node); | |
1894 | if (list_empty(&ippdrv->cmd_list)) | |
1895 | pm_runtime_put_sync(ippdrv->dev); | |
1896 | } | |
1897 | } | |
1898 | } | |
1899 | ||
1900 | err_clear: | |
1901 | kfree(priv); | |
1902 | return; | |
1903 | } | |
1904 | ||
56550d94 | 1905 | static int ipp_probe(struct platform_device *pdev) |
cb471f14 EK |
1906 | { |
1907 | struct device *dev = &pdev->dev; | |
1908 | struct ipp_context *ctx; | |
1909 | struct exynos_drm_subdrv *subdrv; | |
1910 | int ret; | |
1911 | ||
d873ab99 | 1912 | ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); |
cb471f14 EK |
1913 | if (!ctx) |
1914 | return -ENOMEM; | |
1915 | ||
1916 | DRM_DEBUG_KMS("%s\n", __func__); | |
1917 | ||
1918 | mutex_init(&ctx->ipp_lock); | |
1919 | mutex_init(&ctx->prop_lock); | |
1920 | ||
1921 | idr_init(&ctx->ipp_idr); | |
1922 | idr_init(&ctx->prop_idr); | |
1923 | ||
1924 | /* | |
1925 | * create single thread for ipp event | |
1926 | * IPP supports event thread for IPP drivers. | |
1927 | * IPP driver send event_work to this thread. | |
1928 | * and IPP event thread send event to user process. | |
1929 | */ | |
1930 | ctx->event_workq = create_singlethread_workqueue("ipp_event"); | |
1931 | if (!ctx->event_workq) { | |
1932 | dev_err(dev, "failed to create event workqueue\n"); | |
bfb6ed26 | 1933 | return -EINVAL; |
cb471f14 EK |
1934 | } |
1935 | ||
1936 | /* | |
1937 | * create single thread for ipp command | |
1938 | * IPP supports command thread for user process. | |
1939 | * user process make command node using set property ioctl. | |
1940 | * and make start_work and send this work to command thread. | |
1941 | * and then this command thread start property. | |
1942 | */ | |
1943 | ctx->cmd_workq = create_singlethread_workqueue("ipp_cmd"); | |
1944 | if (!ctx->cmd_workq) { | |
1945 | dev_err(dev, "failed to create cmd workqueue\n"); | |
1946 | ret = -EINVAL; | |
1947 | goto err_event_workq; | |
1948 | } | |
1949 | ||
1950 | /* set sub driver informations */ | |
1951 | subdrv = &ctx->subdrv; | |
1952 | subdrv->dev = dev; | |
1953 | subdrv->probe = ipp_subdrv_probe; | |
1954 | subdrv->remove = ipp_subdrv_remove; | |
1955 | subdrv->open = ipp_subdrv_open; | |
1956 | subdrv->close = ipp_subdrv_close; | |
1957 | ||
1958 | platform_set_drvdata(pdev, ctx); | |
1959 | ||
1960 | ret = exynos_drm_subdrv_register(subdrv); | |
1961 | if (ret < 0) { | |
1962 | DRM_ERROR("failed to register drm ipp device.\n"); | |
1963 | goto err_cmd_workq; | |
1964 | } | |
1965 | ||
d873ab99 | 1966 | dev_info(dev, "drm ipp registered successfully.\n"); |
cb471f14 EK |
1967 | |
1968 | return 0; | |
1969 | ||
1970 | err_cmd_workq: | |
1971 | destroy_workqueue(ctx->cmd_workq); | |
1972 | err_event_workq: | |
1973 | destroy_workqueue(ctx->event_workq); | |
cb471f14 EK |
1974 | return ret; |
1975 | } | |
1976 | ||
56550d94 | 1977 | static int ipp_remove(struct platform_device *pdev) |
cb471f14 EK |
1978 | { |
1979 | struct ipp_context *ctx = platform_get_drvdata(pdev); | |
1980 | ||
1981 | DRM_DEBUG_KMS("%s\n", __func__); | |
1982 | ||
1983 | /* unregister sub driver */ | |
1984 | exynos_drm_subdrv_unregister(&ctx->subdrv); | |
1985 | ||
1986 | /* remove,destroy ipp idr */ | |
cb471f14 EK |
1987 | idr_destroy(&ctx->ipp_idr); |
1988 | idr_destroy(&ctx->prop_idr); | |
1989 | ||
1990 | mutex_destroy(&ctx->ipp_lock); | |
1991 | mutex_destroy(&ctx->prop_lock); | |
1992 | ||
1993 | /* destroy command, event work queue */ | |
1994 | destroy_workqueue(ctx->cmd_workq); | |
1995 | destroy_workqueue(ctx->event_workq); | |
1996 | ||
cb471f14 EK |
1997 | return 0; |
1998 | } | |
1999 | ||
2000 | static int ipp_power_ctrl(struct ipp_context *ctx, bool enable) | |
2001 | { | |
2002 | DRM_DEBUG_KMS("%s:enable[%d]\n", __func__, enable); | |
2003 | ||
2004 | return 0; | |
2005 | } | |
2006 | ||
2007 | #ifdef CONFIG_PM_SLEEP | |
2008 | static int ipp_suspend(struct device *dev) | |
2009 | { | |
2010 | struct ipp_context *ctx = get_ipp_context(dev); | |
2011 | ||
2012 | DRM_DEBUG_KMS("%s\n", __func__); | |
2013 | ||
2014 | if (pm_runtime_suspended(dev)) | |
2015 | return 0; | |
2016 | ||
2017 | return ipp_power_ctrl(ctx, false); | |
2018 | } | |
2019 | ||
2020 | static int ipp_resume(struct device *dev) | |
2021 | { | |
2022 | struct ipp_context *ctx = get_ipp_context(dev); | |
2023 | ||
2024 | DRM_DEBUG_KMS("%s\n", __func__); | |
2025 | ||
2026 | if (!pm_runtime_suspended(dev)) | |
2027 | return ipp_power_ctrl(ctx, true); | |
2028 | ||
2029 | return 0; | |
2030 | } | |
2031 | #endif | |
2032 | ||
2033 | #ifdef CONFIG_PM_RUNTIME | |
2034 | static int ipp_runtime_suspend(struct device *dev) | |
2035 | { | |
2036 | struct ipp_context *ctx = get_ipp_context(dev); | |
2037 | ||
2038 | DRM_DEBUG_KMS("%s\n", __func__); | |
2039 | ||
2040 | return ipp_power_ctrl(ctx, false); | |
2041 | } | |
2042 | ||
2043 | static int ipp_runtime_resume(struct device *dev) | |
2044 | { | |
2045 | struct ipp_context *ctx = get_ipp_context(dev); | |
2046 | ||
2047 | DRM_DEBUG_KMS("%s\n", __func__); | |
2048 | ||
2049 | return ipp_power_ctrl(ctx, true); | |
2050 | } | |
2051 | #endif | |
2052 | ||
2053 | static const struct dev_pm_ops ipp_pm_ops = { | |
2054 | SET_SYSTEM_SLEEP_PM_OPS(ipp_suspend, ipp_resume) | |
2055 | SET_RUNTIME_PM_OPS(ipp_runtime_suspend, ipp_runtime_resume, NULL) | |
2056 | }; | |
2057 | ||
2058 | struct platform_driver ipp_driver = { | |
2059 | .probe = ipp_probe, | |
56550d94 | 2060 | .remove = ipp_remove, |
cb471f14 EK |
2061 | .driver = { |
2062 | .name = "exynos-drm-ipp", | |
2063 | .owner = THIS_MODULE, | |
2064 | .pm = &ipp_pm_ops, | |
2065 | }, | |
2066 | }; | |
2067 |