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c8afe684 RC |
1 | /* |
2 | * Copyright (C) 2013 Red Hat | |
3 | * Author: Rob Clark <robdclark@gmail.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published by | |
7 | * the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | #include "msm_drv.h" | |
7198e6b0 | 19 | #include "msm_gpu.h" |
c8afe684 RC |
20 | |
21 | #include <mach/iommu.h> | |
22 | ||
23 | static void msm_fb_output_poll_changed(struct drm_device *dev) | |
24 | { | |
25 | struct msm_drm_private *priv = dev->dev_private; | |
26 | if (priv->fbdev) | |
27 | drm_fb_helper_hotplug_event(priv->fbdev); | |
28 | } | |
29 | ||
30 | static const struct drm_mode_config_funcs mode_config_funcs = { | |
31 | .fb_create = msm_framebuffer_create, | |
32 | .output_poll_changed = msm_fb_output_poll_changed, | |
33 | }; | |
34 | ||
35 | static int msm_fault_handler(struct iommu_domain *iommu, struct device *dev, | |
36 | unsigned long iova, int flags, void *arg) | |
37 | { | |
38 | DBG("*** fault: iova=%08lx, flags=%d", iova, flags); | |
39 | return 0; | |
40 | } | |
41 | ||
42 | int msm_register_iommu(struct drm_device *dev, struct iommu_domain *iommu) | |
43 | { | |
44 | struct msm_drm_private *priv = dev->dev_private; | |
45 | int idx = priv->num_iommus++; | |
46 | ||
47 | if (WARN_ON(idx >= ARRAY_SIZE(priv->iommus))) | |
48 | return -EINVAL; | |
49 | ||
50 | priv->iommus[idx] = iommu; | |
51 | ||
52 | iommu_set_fault_handler(iommu, msm_fault_handler, dev); | |
53 | ||
54 | /* need to iommu_attach_device() somewhere?? on resume?? */ | |
55 | ||
56 | return idx; | |
57 | } | |
58 | ||
59 | int msm_iommu_attach(struct drm_device *dev, struct iommu_domain *iommu, | |
60 | const char **names, int cnt) | |
61 | { | |
62 | int i, ret; | |
63 | ||
64 | for (i = 0; i < cnt; i++) { | |
65 | struct device *ctx = msm_iommu_get_ctx(names[i]); | |
66 | if (!ctx) | |
67 | continue; | |
68 | ret = iommu_attach_device(iommu, ctx); | |
69 | if (ret) { | |
70 | dev_warn(dev->dev, "could not attach iommu to %s", names[i]); | |
71 | return ret; | |
72 | } | |
73 | } | |
74 | return 0; | |
75 | } | |
76 | ||
77 | #ifdef CONFIG_DRM_MSM_REGISTER_LOGGING | |
78 | static bool reglog = false; | |
79 | MODULE_PARM_DESC(reglog, "Enable register read/write logging"); | |
80 | module_param(reglog, bool, 0600); | |
81 | #else | |
82 | #define reglog 0 | |
83 | #endif | |
84 | ||
85 | void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, | |
86 | const char *dbgname) | |
87 | { | |
88 | struct resource *res; | |
89 | unsigned long size; | |
90 | void __iomem *ptr; | |
91 | ||
92 | if (name) | |
93 | res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name); | |
94 | else | |
95 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
96 | ||
97 | if (!res) { | |
98 | dev_err(&pdev->dev, "failed to get memory resource: %s\n", name); | |
99 | return ERR_PTR(-EINVAL); | |
100 | } | |
101 | ||
102 | size = resource_size(res); | |
103 | ||
104 | ptr = devm_ioremap_nocache(&pdev->dev, res->start, size); | |
105 | if (!ptr) { | |
106 | dev_err(&pdev->dev, "failed to ioremap: %s\n", name); | |
107 | return ERR_PTR(-ENOMEM); | |
108 | } | |
109 | ||
110 | if (reglog) | |
111 | printk(KERN_DEBUG "IO:region %s %08x %08lx\n", dbgname, (u32)ptr, size); | |
112 | ||
113 | return ptr; | |
114 | } | |
115 | ||
116 | void msm_writel(u32 data, void __iomem *addr) | |
117 | { | |
118 | if (reglog) | |
119 | printk(KERN_DEBUG "IO:W %08x %08x\n", (u32)addr, data); | |
120 | writel(data, addr); | |
121 | } | |
122 | ||
123 | u32 msm_readl(const void __iomem *addr) | |
124 | { | |
125 | u32 val = readl(addr); | |
126 | if (reglog) | |
127 | printk(KERN_ERR "IO:R %08x %08x\n", (u32)addr, val); | |
128 | return val; | |
129 | } | |
130 | ||
131 | /* | |
132 | * DRM operations: | |
133 | */ | |
134 | ||
135 | static int msm_unload(struct drm_device *dev) | |
136 | { | |
137 | struct msm_drm_private *priv = dev->dev_private; | |
138 | struct msm_kms *kms = priv->kms; | |
7198e6b0 | 139 | struct msm_gpu *gpu = priv->gpu; |
c8afe684 RC |
140 | |
141 | drm_kms_helper_poll_fini(dev); | |
142 | drm_mode_config_cleanup(dev); | |
143 | drm_vblank_cleanup(dev); | |
144 | ||
145 | pm_runtime_get_sync(dev->dev); | |
146 | drm_irq_uninstall(dev); | |
147 | pm_runtime_put_sync(dev->dev); | |
148 | ||
149 | flush_workqueue(priv->wq); | |
150 | destroy_workqueue(priv->wq); | |
151 | ||
152 | if (kms) { | |
153 | pm_runtime_disable(dev->dev); | |
154 | kms->funcs->destroy(kms); | |
155 | } | |
156 | ||
7198e6b0 RC |
157 | if (gpu) { |
158 | mutex_lock(&dev->struct_mutex); | |
159 | gpu->funcs->pm_suspend(gpu); | |
160 | gpu->funcs->destroy(gpu); | |
161 | mutex_unlock(&dev->struct_mutex); | |
162 | } | |
c8afe684 RC |
163 | |
164 | dev->dev_private = NULL; | |
165 | ||
166 | kfree(priv); | |
167 | ||
168 | return 0; | |
169 | } | |
170 | ||
171 | static int msm_load(struct drm_device *dev, unsigned long flags) | |
172 | { | |
173 | struct platform_device *pdev = dev->platformdev; | |
174 | struct msm_drm_private *priv; | |
175 | struct msm_kms *kms; | |
176 | int ret; | |
177 | ||
178 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
179 | if (!priv) { | |
180 | dev_err(dev->dev, "failed to allocate private data\n"); | |
181 | return -ENOMEM; | |
182 | } | |
183 | ||
184 | dev->dev_private = priv; | |
185 | ||
186 | priv->wq = alloc_ordered_workqueue("msm", 0); | |
7198e6b0 | 187 | init_waitqueue_head(&priv->fence_event); |
c8afe684 RC |
188 | |
189 | INIT_LIST_HEAD(&priv->inactive_list); | |
190 | ||
191 | drm_mode_config_init(dev); | |
192 | ||
193 | kms = mdp4_kms_init(dev); | |
194 | if (IS_ERR(kms)) { | |
195 | /* | |
196 | * NOTE: once we have GPU support, having no kms should not | |
197 | * be considered fatal.. ideally we would still support gpu | |
198 | * and (for example) use dmabuf/prime to share buffers with | |
199 | * imx drm driver on iMX5 | |
200 | */ | |
201 | dev_err(dev->dev, "failed to load kms\n"); | |
202 | ret = PTR_ERR(priv->kms); | |
203 | goto fail; | |
204 | } | |
205 | ||
206 | priv->kms = kms; | |
207 | ||
208 | if (kms) { | |
209 | pm_runtime_enable(dev->dev); | |
210 | ret = kms->funcs->hw_init(kms); | |
211 | if (ret) { | |
212 | dev_err(dev->dev, "kms hw init failed: %d\n", ret); | |
213 | goto fail; | |
214 | } | |
215 | } | |
216 | ||
217 | dev->mode_config.min_width = 0; | |
218 | dev->mode_config.min_height = 0; | |
219 | dev->mode_config.max_width = 2048; | |
220 | dev->mode_config.max_height = 2048; | |
221 | dev->mode_config.funcs = &mode_config_funcs; | |
222 | ||
223 | ret = drm_vblank_init(dev, 1); | |
224 | if (ret < 0) { | |
225 | dev_err(dev->dev, "failed to initialize vblank\n"); | |
226 | goto fail; | |
227 | } | |
228 | ||
229 | pm_runtime_get_sync(dev->dev); | |
230 | ret = drm_irq_install(dev); | |
231 | pm_runtime_put_sync(dev->dev); | |
232 | if (ret < 0) { | |
233 | dev_err(dev->dev, "failed to install IRQ handler\n"); | |
234 | goto fail; | |
235 | } | |
236 | ||
237 | platform_set_drvdata(pdev, dev); | |
238 | ||
239 | #ifdef CONFIG_DRM_MSM_FBDEV | |
240 | priv->fbdev = msm_fbdev_init(dev); | |
241 | #endif | |
242 | ||
243 | drm_kms_helper_poll_init(dev); | |
244 | ||
245 | return 0; | |
246 | ||
247 | fail: | |
248 | msm_unload(dev); | |
249 | return ret; | |
250 | } | |
251 | ||
7198e6b0 RC |
252 | static void load_gpu(struct drm_device *dev) |
253 | { | |
254 | struct msm_drm_private *priv = dev->dev_private; | |
255 | struct msm_gpu *gpu; | |
256 | ||
257 | if (priv->gpu) | |
258 | return; | |
259 | ||
260 | mutex_lock(&dev->struct_mutex); | |
261 | gpu = a3xx_gpu_init(dev); | |
262 | if (IS_ERR(gpu)) { | |
263 | dev_warn(dev->dev, "failed to load a3xx gpu\n"); | |
264 | gpu = NULL; | |
265 | /* not fatal */ | |
266 | } | |
267 | mutex_unlock(&dev->struct_mutex); | |
268 | ||
269 | if (gpu) { | |
270 | int ret; | |
271 | gpu->funcs->pm_resume(gpu); | |
272 | ret = gpu->funcs->hw_init(gpu); | |
273 | if (ret) { | |
274 | dev_err(dev->dev, "gpu hw init failed: %d\n", ret); | |
275 | gpu->funcs->destroy(gpu); | |
276 | gpu = NULL; | |
277 | } | |
278 | } | |
279 | ||
280 | priv->gpu = gpu; | |
281 | } | |
282 | ||
283 | static int msm_open(struct drm_device *dev, struct drm_file *file) | |
284 | { | |
285 | struct msm_file_private *ctx; | |
286 | ||
287 | /* For now, load gpu on open.. to avoid the requirement of having | |
288 | * firmware in the initrd. | |
289 | */ | |
290 | load_gpu(dev); | |
291 | ||
292 | ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); | |
293 | if (!ctx) | |
294 | return -ENOMEM; | |
295 | ||
296 | file->driver_priv = ctx; | |
297 | ||
298 | return 0; | |
299 | } | |
300 | ||
c8afe684 RC |
301 | static void msm_preclose(struct drm_device *dev, struct drm_file *file) |
302 | { | |
303 | struct msm_drm_private *priv = dev->dev_private; | |
7198e6b0 | 304 | struct msm_file_private *ctx = file->driver_priv; |
c8afe684 | 305 | struct msm_kms *kms = priv->kms; |
7198e6b0 | 306 | |
c8afe684 RC |
307 | if (kms) |
308 | kms->funcs->preclose(kms, file); | |
7198e6b0 RC |
309 | |
310 | mutex_lock(&dev->struct_mutex); | |
311 | if (ctx == priv->lastctx) | |
312 | priv->lastctx = NULL; | |
313 | mutex_unlock(&dev->struct_mutex); | |
314 | ||
315 | kfree(ctx); | |
c8afe684 RC |
316 | } |
317 | ||
318 | static void msm_lastclose(struct drm_device *dev) | |
319 | { | |
320 | struct msm_drm_private *priv = dev->dev_private; | |
321 | if (priv->fbdev) { | |
322 | drm_modeset_lock_all(dev); | |
323 | drm_fb_helper_restore_fbdev_mode(priv->fbdev); | |
324 | drm_modeset_unlock_all(dev); | |
325 | } | |
326 | } | |
327 | ||
328 | static irqreturn_t msm_irq(DRM_IRQ_ARGS) | |
329 | { | |
330 | struct drm_device *dev = arg; | |
331 | struct msm_drm_private *priv = dev->dev_private; | |
332 | struct msm_kms *kms = priv->kms; | |
333 | BUG_ON(!kms); | |
334 | return kms->funcs->irq(kms); | |
335 | } | |
336 | ||
337 | static void msm_irq_preinstall(struct drm_device *dev) | |
338 | { | |
339 | struct msm_drm_private *priv = dev->dev_private; | |
340 | struct msm_kms *kms = priv->kms; | |
341 | BUG_ON(!kms); | |
342 | kms->funcs->irq_preinstall(kms); | |
343 | } | |
344 | ||
345 | static int msm_irq_postinstall(struct drm_device *dev) | |
346 | { | |
347 | struct msm_drm_private *priv = dev->dev_private; | |
348 | struct msm_kms *kms = priv->kms; | |
349 | BUG_ON(!kms); | |
350 | return kms->funcs->irq_postinstall(kms); | |
351 | } | |
352 | ||
353 | static void msm_irq_uninstall(struct drm_device *dev) | |
354 | { | |
355 | struct msm_drm_private *priv = dev->dev_private; | |
356 | struct msm_kms *kms = priv->kms; | |
357 | BUG_ON(!kms); | |
358 | kms->funcs->irq_uninstall(kms); | |
359 | } | |
360 | ||
361 | static int msm_enable_vblank(struct drm_device *dev, int crtc_id) | |
362 | { | |
363 | struct msm_drm_private *priv = dev->dev_private; | |
364 | struct msm_kms *kms = priv->kms; | |
365 | if (!kms) | |
366 | return -ENXIO; | |
367 | DBG("dev=%p, crtc=%d", dev, crtc_id); | |
368 | return kms->funcs->enable_vblank(kms, priv->crtcs[crtc_id]); | |
369 | } | |
370 | ||
371 | static void msm_disable_vblank(struct drm_device *dev, int crtc_id) | |
372 | { | |
373 | struct msm_drm_private *priv = dev->dev_private; | |
374 | struct msm_kms *kms = priv->kms; | |
375 | if (!kms) | |
376 | return; | |
377 | DBG("dev=%p, crtc=%d", dev, crtc_id); | |
378 | kms->funcs->disable_vblank(kms, priv->crtcs[crtc_id]); | |
379 | } | |
380 | ||
381 | /* | |
382 | * DRM debugfs: | |
383 | */ | |
384 | ||
385 | #ifdef CONFIG_DEBUG_FS | |
7198e6b0 RC |
386 | static int msm_gpu_show(struct drm_device *dev, struct seq_file *m) |
387 | { | |
388 | struct msm_drm_private *priv = dev->dev_private; | |
389 | struct msm_gpu *gpu = priv->gpu; | |
390 | ||
391 | if (gpu) { | |
392 | seq_printf(m, "%s Status:\n", gpu->name); | |
393 | gpu->funcs->show(gpu, m); | |
394 | } | |
395 | ||
396 | return 0; | |
397 | } | |
398 | ||
c8afe684 RC |
399 | static int msm_gem_show(struct drm_device *dev, struct seq_file *m) |
400 | { | |
401 | struct msm_drm_private *priv = dev->dev_private; | |
7198e6b0 RC |
402 | struct msm_gpu *gpu = priv->gpu; |
403 | ||
404 | if (gpu) { | |
405 | seq_printf(m, "Active Objects (%s):\n", gpu->name); | |
406 | msm_gem_describe_objects(&gpu->active_list, m); | |
407 | } | |
c8afe684 | 408 | |
7198e6b0 | 409 | seq_printf(m, "Inactive Objects:\n"); |
c8afe684 RC |
410 | msm_gem_describe_objects(&priv->inactive_list, m); |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
415 | static int msm_mm_show(struct drm_device *dev, struct seq_file *m) | |
416 | { | |
417 | return drm_mm_dump_table(m, dev->mm_private); | |
418 | } | |
419 | ||
420 | static int msm_fb_show(struct drm_device *dev, struct seq_file *m) | |
421 | { | |
422 | struct msm_drm_private *priv = dev->dev_private; | |
423 | struct drm_framebuffer *fb, *fbdev_fb = NULL; | |
424 | ||
425 | if (priv->fbdev) { | |
426 | seq_printf(m, "fbcon "); | |
427 | fbdev_fb = priv->fbdev->fb; | |
428 | msm_framebuffer_describe(fbdev_fb, m); | |
429 | } | |
430 | ||
431 | mutex_lock(&dev->mode_config.fb_lock); | |
432 | list_for_each_entry(fb, &dev->mode_config.fb_list, head) { | |
433 | if (fb == fbdev_fb) | |
434 | continue; | |
435 | ||
436 | seq_printf(m, "user "); | |
437 | msm_framebuffer_describe(fb, m); | |
438 | } | |
439 | mutex_unlock(&dev->mode_config.fb_lock); | |
440 | ||
441 | return 0; | |
442 | } | |
443 | ||
444 | static int show_locked(struct seq_file *m, void *arg) | |
445 | { | |
446 | struct drm_info_node *node = (struct drm_info_node *) m->private; | |
447 | struct drm_device *dev = node->minor->dev; | |
448 | int (*show)(struct drm_device *dev, struct seq_file *m) = | |
449 | node->info_ent->data; | |
450 | int ret; | |
451 | ||
452 | ret = mutex_lock_interruptible(&dev->struct_mutex); | |
453 | if (ret) | |
454 | return ret; | |
455 | ||
456 | ret = show(dev, m); | |
457 | ||
458 | mutex_unlock(&dev->struct_mutex); | |
459 | ||
460 | return ret; | |
461 | } | |
462 | ||
463 | static struct drm_info_list msm_debugfs_list[] = { | |
7198e6b0 | 464 | {"gpu", show_locked, 0, msm_gpu_show}, |
c8afe684 RC |
465 | {"gem", show_locked, 0, msm_gem_show}, |
466 | { "mm", show_locked, 0, msm_mm_show }, | |
467 | { "fb", show_locked, 0, msm_fb_show }, | |
468 | }; | |
469 | ||
470 | static int msm_debugfs_init(struct drm_minor *minor) | |
471 | { | |
472 | struct drm_device *dev = minor->dev; | |
473 | int ret; | |
474 | ||
475 | ret = drm_debugfs_create_files(msm_debugfs_list, | |
476 | ARRAY_SIZE(msm_debugfs_list), | |
477 | minor->debugfs_root, minor); | |
478 | ||
479 | if (ret) { | |
480 | dev_err(dev->dev, "could not install msm_debugfs_list\n"); | |
481 | return ret; | |
482 | } | |
483 | ||
484 | return ret; | |
485 | } | |
486 | ||
487 | static void msm_debugfs_cleanup(struct drm_minor *minor) | |
488 | { | |
489 | drm_debugfs_remove_files(msm_debugfs_list, | |
490 | ARRAY_SIZE(msm_debugfs_list), minor); | |
491 | } | |
492 | #endif | |
493 | ||
7198e6b0 RC |
494 | /* |
495 | * Fences: | |
496 | */ | |
497 | ||
498 | int msm_wait_fence_interruptable(struct drm_device *dev, uint32_t fence, | |
499 | struct timespec *timeout) | |
500 | { | |
501 | struct msm_drm_private *priv = dev->dev_private; | |
502 | unsigned long timeout_jiffies = timespec_to_jiffies(timeout); | |
503 | unsigned long start_jiffies = jiffies; | |
504 | unsigned long remaining_jiffies; | |
505 | int ret; | |
506 | ||
507 | if (time_after(start_jiffies, timeout_jiffies)) | |
508 | remaining_jiffies = 0; | |
509 | else | |
510 | remaining_jiffies = timeout_jiffies - start_jiffies; | |
511 | ||
512 | ret = wait_event_interruptible_timeout(priv->fence_event, | |
513 | priv->completed_fence >= fence, | |
514 | remaining_jiffies); | |
515 | if (ret == 0) { | |
516 | DBG("timeout waiting for fence: %u (completed: %u)", | |
517 | fence, priv->completed_fence); | |
518 | ret = -ETIMEDOUT; | |
519 | } else if (ret != -ERESTARTSYS) { | |
520 | ret = 0; | |
521 | } | |
522 | ||
523 | return ret; | |
524 | } | |
525 | ||
526 | /* call under struct_mutex */ | |
527 | void msm_update_fence(struct drm_device *dev, uint32_t fence) | |
528 | { | |
529 | struct msm_drm_private *priv = dev->dev_private; | |
530 | ||
531 | if (fence > priv->completed_fence) { | |
532 | priv->completed_fence = fence; | |
533 | wake_up_all(&priv->fence_event); | |
534 | } | |
535 | } | |
536 | ||
537 | /* | |
538 | * DRM ioctls: | |
539 | */ | |
540 | ||
541 | static int msm_ioctl_get_param(struct drm_device *dev, void *data, | |
542 | struct drm_file *file) | |
543 | { | |
544 | struct msm_drm_private *priv = dev->dev_private; | |
545 | struct drm_msm_param *args = data; | |
546 | struct msm_gpu *gpu; | |
547 | ||
548 | /* for now, we just have 3d pipe.. eventually this would need to | |
549 | * be more clever to dispatch to appropriate gpu module: | |
550 | */ | |
551 | if (args->pipe != MSM_PIPE_3D0) | |
552 | return -EINVAL; | |
553 | ||
554 | gpu = priv->gpu; | |
555 | ||
556 | if (!gpu) | |
557 | return -ENXIO; | |
558 | ||
559 | return gpu->funcs->get_param(gpu, args->param, &args->value); | |
560 | } | |
561 | ||
562 | static int msm_ioctl_gem_new(struct drm_device *dev, void *data, | |
563 | struct drm_file *file) | |
564 | { | |
565 | struct drm_msm_gem_new *args = data; | |
566 | return msm_gem_new_handle(dev, file, args->size, | |
567 | args->flags, &args->handle); | |
568 | } | |
569 | ||
570 | #define TS(t) ((struct timespec){ .tv_sec = (t).tv_sec, .tv_nsec = (t).tv_nsec }) | |
571 | ||
572 | static int msm_ioctl_gem_cpu_prep(struct drm_device *dev, void *data, | |
573 | struct drm_file *file) | |
574 | { | |
575 | struct drm_msm_gem_cpu_prep *args = data; | |
576 | struct drm_gem_object *obj; | |
577 | int ret; | |
578 | ||
579 | obj = drm_gem_object_lookup(dev, file, args->handle); | |
580 | if (!obj) | |
581 | return -ENOENT; | |
582 | ||
583 | ret = msm_gem_cpu_prep(obj, args->op, &TS(args->timeout)); | |
584 | ||
585 | drm_gem_object_unreference_unlocked(obj); | |
586 | ||
587 | return ret; | |
588 | } | |
589 | ||
590 | static int msm_ioctl_gem_cpu_fini(struct drm_device *dev, void *data, | |
591 | struct drm_file *file) | |
592 | { | |
593 | struct drm_msm_gem_cpu_fini *args = data; | |
594 | struct drm_gem_object *obj; | |
595 | int ret; | |
596 | ||
597 | obj = drm_gem_object_lookup(dev, file, args->handle); | |
598 | if (!obj) | |
599 | return -ENOENT; | |
600 | ||
601 | ret = msm_gem_cpu_fini(obj); | |
602 | ||
603 | drm_gem_object_unreference_unlocked(obj); | |
604 | ||
605 | return ret; | |
606 | } | |
607 | ||
608 | static int msm_ioctl_gem_info(struct drm_device *dev, void *data, | |
609 | struct drm_file *file) | |
610 | { | |
611 | struct drm_msm_gem_info *args = data; | |
612 | struct drm_gem_object *obj; | |
613 | int ret = 0; | |
614 | ||
615 | if (args->pad) | |
616 | return -EINVAL; | |
617 | ||
618 | obj = drm_gem_object_lookup(dev, file, args->handle); | |
619 | if (!obj) | |
620 | return -ENOENT; | |
621 | ||
622 | args->offset = msm_gem_mmap_offset(obj); | |
623 | ||
624 | drm_gem_object_unreference_unlocked(obj); | |
625 | ||
626 | return ret; | |
627 | } | |
628 | ||
629 | static int msm_ioctl_wait_fence(struct drm_device *dev, void *data, | |
630 | struct drm_file *file) | |
631 | { | |
632 | struct drm_msm_wait_fence *args = data; | |
633 | return msm_wait_fence_interruptable(dev, args->fence, &TS(args->timeout)); | |
634 | } | |
635 | ||
636 | static const struct drm_ioctl_desc msm_ioctls[] = { | |
637 | DRM_IOCTL_DEF_DRV(MSM_GET_PARAM, msm_ioctl_get_param, DRM_UNLOCKED|DRM_AUTH), | |
638 | DRM_IOCTL_DEF_DRV(MSM_GEM_NEW, msm_ioctl_gem_new, DRM_UNLOCKED|DRM_AUTH), | |
639 | DRM_IOCTL_DEF_DRV(MSM_GEM_INFO, msm_ioctl_gem_info, DRM_UNLOCKED|DRM_AUTH), | |
640 | DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_PREP, msm_ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH), | |
641 | DRM_IOCTL_DEF_DRV(MSM_GEM_CPU_FINI, msm_ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH), | |
642 | DRM_IOCTL_DEF_DRV(MSM_GEM_SUBMIT, msm_ioctl_gem_submit, DRM_UNLOCKED|DRM_AUTH), | |
643 | DRM_IOCTL_DEF_DRV(MSM_WAIT_FENCE, msm_ioctl_wait_fence, DRM_UNLOCKED|DRM_AUTH), | |
644 | }; | |
645 | ||
c8afe684 RC |
646 | static const struct vm_operations_struct vm_ops = { |
647 | .fault = msm_gem_fault, | |
648 | .open = drm_gem_vm_open, | |
649 | .close = drm_gem_vm_close, | |
650 | }; | |
651 | ||
652 | static const struct file_operations fops = { | |
653 | .owner = THIS_MODULE, | |
654 | .open = drm_open, | |
655 | .release = drm_release, | |
656 | .unlocked_ioctl = drm_ioctl, | |
657 | #ifdef CONFIG_COMPAT | |
658 | .compat_ioctl = drm_compat_ioctl, | |
659 | #endif | |
660 | .poll = drm_poll, | |
661 | .read = drm_read, | |
662 | .llseek = no_llseek, | |
663 | .mmap = msm_gem_mmap, | |
664 | }; | |
665 | ||
666 | static struct drm_driver msm_driver = { | |
667 | .driver_features = DRIVER_HAVE_IRQ | DRIVER_GEM | DRIVER_MODESET, | |
668 | .load = msm_load, | |
669 | .unload = msm_unload, | |
7198e6b0 | 670 | .open = msm_open, |
c8afe684 RC |
671 | .preclose = msm_preclose, |
672 | .lastclose = msm_lastclose, | |
673 | .irq_handler = msm_irq, | |
674 | .irq_preinstall = msm_irq_preinstall, | |
675 | .irq_postinstall = msm_irq_postinstall, | |
676 | .irq_uninstall = msm_irq_uninstall, | |
677 | .get_vblank_counter = drm_vblank_count, | |
678 | .enable_vblank = msm_enable_vblank, | |
679 | .disable_vblank = msm_disable_vblank, | |
680 | .gem_free_object = msm_gem_free_object, | |
681 | .gem_vm_ops = &vm_ops, | |
682 | .dumb_create = msm_gem_dumb_create, | |
683 | .dumb_map_offset = msm_gem_dumb_map_offset, | |
684 | .dumb_destroy = msm_gem_dumb_destroy, | |
685 | #ifdef CONFIG_DEBUG_FS | |
686 | .debugfs_init = msm_debugfs_init, | |
687 | .debugfs_cleanup = msm_debugfs_cleanup, | |
688 | #endif | |
7198e6b0 RC |
689 | .ioctls = msm_ioctls, |
690 | .num_ioctls = DRM_MSM_NUM_IOCTLS, | |
c8afe684 RC |
691 | .fops = &fops, |
692 | .name = "msm", | |
693 | .desc = "MSM Snapdragon DRM", | |
694 | .date = "20130625", | |
695 | .major = 1, | |
696 | .minor = 0, | |
697 | }; | |
698 | ||
699 | #ifdef CONFIG_PM_SLEEP | |
700 | static int msm_pm_suspend(struct device *dev) | |
701 | { | |
702 | struct drm_device *ddev = dev_get_drvdata(dev); | |
703 | ||
704 | drm_kms_helper_poll_disable(ddev); | |
705 | ||
706 | return 0; | |
707 | } | |
708 | ||
709 | static int msm_pm_resume(struct device *dev) | |
710 | { | |
711 | struct drm_device *ddev = dev_get_drvdata(dev); | |
712 | ||
713 | drm_kms_helper_poll_enable(ddev); | |
714 | ||
715 | return 0; | |
716 | } | |
717 | #endif | |
718 | ||
719 | static const struct dev_pm_ops msm_pm_ops = { | |
720 | SET_SYSTEM_SLEEP_PM_OPS(msm_pm_suspend, msm_pm_resume) | |
721 | }; | |
722 | ||
723 | /* | |
724 | * Platform driver: | |
725 | */ | |
726 | ||
727 | static int msm_pdev_probe(struct platform_device *pdev) | |
728 | { | |
729 | return drm_platform_init(&msm_driver, pdev); | |
730 | } | |
731 | ||
732 | static int msm_pdev_remove(struct platform_device *pdev) | |
733 | { | |
734 | drm_platform_exit(&msm_driver, pdev); | |
735 | ||
736 | return 0; | |
737 | } | |
738 | ||
739 | static const struct platform_device_id msm_id[] = { | |
740 | { "mdp", 0 }, | |
741 | { } | |
742 | }; | |
743 | ||
744 | static struct platform_driver msm_platform_driver = { | |
745 | .probe = msm_pdev_probe, | |
746 | .remove = msm_pdev_remove, | |
747 | .driver = { | |
748 | .owner = THIS_MODULE, | |
749 | .name = "msm", | |
750 | .pm = &msm_pm_ops, | |
751 | }, | |
752 | .id_table = msm_id, | |
753 | }; | |
754 | ||
755 | static int __init msm_drm_register(void) | |
756 | { | |
757 | DBG("init"); | |
758 | hdmi_register(); | |
7198e6b0 | 759 | a3xx_register(); |
c8afe684 RC |
760 | return platform_driver_register(&msm_platform_driver); |
761 | } | |
762 | ||
763 | static void __exit msm_drm_unregister(void) | |
764 | { | |
765 | DBG("fini"); | |
766 | platform_driver_unregister(&msm_platform_driver); | |
767 | hdmi_unregister(); | |
7198e6b0 | 768 | a3xx_unregister(); |
c8afe684 RC |
769 | } |
770 | ||
771 | module_init(msm_drm_register); | |
772 | module_exit(msm_drm_unregister); | |
773 | ||
774 | MODULE_AUTHOR("Rob Clark <robdclark@gmail.com"); | |
775 | MODULE_DESCRIPTION("MSM DRM Driver"); | |
776 | MODULE_LICENSE("GPL"); |