2 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * Inki Dae <inki.dae@samsung.com>
5 * Joonyoung Shim <jy0922.shim@samsung.com>
6 * Seung-Woo Kim <sw0312.kim@samsung.com>
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.
14 #include <linux/pm_runtime.h>
16 #include <drm/drm_crtc_helper.h>
18 #include <linux/anon_inodes.h>
20 #include <drm/exynos_drm.h>
22 #include "exynos_drm_drv.h"
23 #include "exynos_drm_crtc.h"
24 #include "exynos_drm_encoder.h"
25 #include "exynos_drm_fbdev.h"
26 #include "exynos_drm_fb.h"
27 #include "exynos_drm_gem.h"
28 #include "exynos_drm_plane.h"
29 #include "exynos_drm_vidi.h"
30 #include "exynos_drm_dmabuf.h"
31 #include "exynos_drm_g2d.h"
32 #include "exynos_drm_ipp.h"
33 #include "exynos_drm_iommu.h"
35 #define DRIVER_NAME "exynos"
36 #define DRIVER_DESC "Samsung SoC DRM"
37 #define DRIVER_DATE "20110530"
38 #define DRIVER_MAJOR 1
39 #define DRIVER_MINOR 0
41 #define VBLANK_OFF_DELAY 50000
43 /* platform device pointer for eynos drm device. */
44 static struct platform_device *exynos_drm_pdev;
46 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
48 struct exynos_drm_private *private;
52 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
56 INIT_LIST_HEAD(&private->pageflip_event_list);
57 dev_set_drvdata(dev->dev, dev);
58 dev->dev_private = (void *)private;
61 * create mapping to manage iommu table and set a pointer to iommu
62 * mapping structure to iommu_mapping of private data.
63 * also this iommu_mapping can be used to check if iommu is supported
66 ret = drm_create_iommu_mapping(dev);
68 DRM_ERROR("failed to create iommu mapping.\n");
69 goto err_free_private;
72 drm_mode_config_init(dev);
74 exynos_drm_mode_config_init(dev);
76 ret = exynos_drm_initialize_managers(dev);
78 goto err_mode_config_cleanup;
80 for (nr = 0; nr < MAX_PLANE; nr++) {
81 struct drm_plane *plane;
82 unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
84 plane = exynos_plane_init(dev, possible_crtcs, false);
86 goto err_manager_cleanup;
89 ret = exynos_drm_initialize_displays(dev);
91 goto err_manager_cleanup;
93 /* init kms poll for handling hpd */
94 drm_kms_helper_poll_init(dev);
96 ret = drm_vblank_init(dev, MAX_CRTC);
98 goto err_display_cleanup;
101 * probe sub drivers such as display controller and hdmi driver,
102 * that were registered at probe() of platform driver
103 * to the sub driver and create encoder and connector for them.
105 ret = exynos_drm_device_register(dev);
109 /* setup possible_clones. */
110 exynos_drm_encoder_setup(dev);
112 drm_vblank_offdelay = VBLANK_OFF_DELAY;
114 platform_set_drvdata(dev->platformdev, dev);
116 /* force connectors detection */
117 drm_helper_hpd_irq_event(dev);
122 drm_vblank_cleanup(dev);
124 exynos_drm_remove_displays(dev);
126 exynos_drm_remove_managers(dev);
127 err_mode_config_cleanup:
128 drm_mode_config_cleanup(dev);
129 drm_release_iommu_mapping(dev);
136 static int exynos_drm_unload(struct drm_device *dev)
138 exynos_drm_fbdev_fini(dev);
139 exynos_drm_device_unregister(dev);
140 drm_vblank_cleanup(dev);
141 drm_kms_helper_poll_fini(dev);
142 exynos_drm_remove_displays(dev);
143 exynos_drm_remove_managers(dev);
144 drm_mode_config_cleanup(dev);
146 drm_release_iommu_mapping(dev);
147 kfree(dev->dev_private);
149 dev->dev_private = NULL;
154 static const struct file_operations exynos_drm_gem_fops = {
155 .mmap = exynos_drm_gem_mmap_buffer,
158 static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
160 struct drm_connector *connector;
162 drm_modeset_lock_all(dev);
163 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
164 int old_dpms = connector->dpms;
166 if (connector->funcs->dpms)
167 connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
169 /* Set the old mode back to the connector for resume */
170 connector->dpms = old_dpms;
172 drm_modeset_unlock_all(dev);
177 static int exynos_drm_resume(struct drm_device *dev)
179 struct drm_connector *connector;
181 drm_modeset_lock_all(dev);
182 list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
183 if (connector->funcs->dpms)
184 connector->funcs->dpms(connector, connector->dpms);
187 drm_helper_resume_force_mode(dev);
188 drm_modeset_unlock_all(dev);
193 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
195 struct drm_exynos_file_private *file_priv;
196 struct file *anon_filp;
199 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
203 file->driver_priv = file_priv;
205 ret = exynos_drm_subdrv_open(dev, file);
207 goto err_file_priv_free;
209 anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
211 if (IS_ERR(anon_filp)) {
212 ret = PTR_ERR(anon_filp);
213 goto err_subdrv_close;
216 anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
217 file_priv->anon_filp = anon_filp;
222 exynos_drm_subdrv_close(dev, file);
226 file->driver_priv = NULL;
230 static void exynos_drm_preclose(struct drm_device *dev,
231 struct drm_file *file)
233 exynos_drm_subdrv_close(dev, file);
236 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
238 struct exynos_drm_private *private = dev->dev_private;
239 struct drm_exynos_file_private *file_priv;
240 struct drm_pending_vblank_event *v, *vt;
241 struct drm_pending_event *e, *et;
244 if (!file->driver_priv)
247 /* Release all events not unhandled by page flip handler. */
248 spin_lock_irqsave(&dev->event_lock, flags);
249 list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
251 if (v->base.file_priv == file) {
252 list_del(&v->base.link);
253 drm_vblank_put(dev, v->pipe);
254 v->base.destroy(&v->base);
258 /* Release all events handled by page flip handler but not freed. */
259 list_for_each_entry_safe(e, et, &file->event_list, link) {
263 spin_unlock_irqrestore(&dev->event_lock, flags);
265 file_priv = file->driver_priv;
266 if (file_priv->anon_filp)
267 fput(file_priv->anon_filp);
269 kfree(file->driver_priv);
270 file->driver_priv = NULL;
273 static void exynos_drm_lastclose(struct drm_device *dev)
275 exynos_drm_fbdev_restore_mode(dev);
278 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
279 .fault = exynos_drm_gem_fault,
280 .open = drm_gem_vm_open,
281 .close = drm_gem_vm_close,
284 static const struct drm_ioctl_desc exynos_ioctls[] = {
285 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
286 DRM_UNLOCKED | DRM_AUTH),
287 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
288 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
290 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
291 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
292 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
293 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
294 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
295 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
296 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
297 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
298 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
299 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
300 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
301 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
302 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
303 exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
304 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
305 exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
306 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
307 exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
308 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
309 exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
312 static const struct file_operations exynos_drm_driver_fops = {
313 .owner = THIS_MODULE,
315 .mmap = exynos_drm_gem_mmap,
318 .unlocked_ioctl = drm_ioctl,
320 .compat_ioctl = drm_compat_ioctl,
322 .release = drm_release,
325 static struct drm_driver exynos_drm_driver = {
326 .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
327 DRIVER_GEM | DRIVER_PRIME,
328 .load = exynos_drm_load,
329 .unload = exynos_drm_unload,
330 .suspend = exynos_drm_suspend,
331 .resume = exynos_drm_resume,
332 .open = exynos_drm_open,
333 .preclose = exynos_drm_preclose,
334 .lastclose = exynos_drm_lastclose,
335 .postclose = exynos_drm_postclose,
336 .get_vblank_counter = drm_vblank_count,
337 .enable_vblank = exynos_drm_crtc_enable_vblank,
338 .disable_vblank = exynos_drm_crtc_disable_vblank,
339 .gem_free_object = exynos_drm_gem_free_object,
340 .gem_vm_ops = &exynos_drm_gem_vm_ops,
341 .dumb_create = exynos_drm_gem_dumb_create,
342 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
343 .dumb_destroy = drm_gem_dumb_destroy,
344 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
345 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
346 .gem_prime_export = exynos_dmabuf_prime_export,
347 .gem_prime_import = exynos_dmabuf_prime_import,
348 .ioctls = exynos_ioctls,
349 .num_ioctls = ARRAY_SIZE(exynos_ioctls),
350 .fops = &exynos_drm_driver_fops,
354 .major = DRIVER_MAJOR,
355 .minor = DRIVER_MINOR,
358 static int exynos_drm_platform_probe(struct platform_device *pdev)
362 ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
366 pm_runtime_enable(&pdev->dev);
367 pm_runtime_get_sync(&pdev->dev);
369 return drm_platform_init(&exynos_drm_driver, pdev);
372 static int exynos_drm_platform_remove(struct platform_device *pdev)
374 drm_put_dev(platform_get_drvdata(pdev));
379 #ifdef CONFIG_PM_SLEEP
380 static int exynos_drm_sys_suspend(struct device *dev)
382 struct drm_device *drm_dev = dev_get_drvdata(dev);
383 pm_message_t message;
385 if (pm_runtime_suspended(dev))
388 message.event = PM_EVENT_SUSPEND;
389 return exynos_drm_suspend(drm_dev, message);
392 static int exynos_drm_sys_resume(struct device *dev)
394 struct drm_device *drm_dev = dev_get_drvdata(dev);
396 if (pm_runtime_suspended(dev))
399 return exynos_drm_resume(drm_dev);
403 #ifdef CONFIG_PM_RUNTIME
404 static int exynos_drm_runtime_suspend(struct device *dev)
406 struct drm_device *drm_dev = dev_get_drvdata(dev);
407 pm_message_t message;
409 if (pm_runtime_suspended(dev))
412 message.event = PM_EVENT_SUSPEND;
413 return exynos_drm_suspend(drm_dev, message);
416 static int exynos_drm_runtime_resume(struct device *dev)
418 struct drm_device *drm_dev = dev_get_drvdata(dev);
420 if (!pm_runtime_suspended(dev))
423 return exynos_drm_resume(drm_dev);
427 static const struct dev_pm_ops exynos_drm_pm_ops = {
428 SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
429 SET_RUNTIME_PM_OPS(exynos_drm_runtime_suspend,
430 exynos_drm_runtime_resume, NULL)
433 static struct platform_driver exynos_drm_platform_driver = {
434 .probe = exynos_drm_platform_probe,
435 .remove = exynos_drm_platform_remove,
437 .owner = THIS_MODULE,
438 .name = "exynos-drm",
439 .pm = &exynos_drm_pm_ops,
443 static int __init exynos_drm_init(void)
447 #ifdef CONFIG_DRM_EXYNOS_DP
448 ret = platform_driver_register(&dp_driver);
453 #ifdef CONFIG_DRM_EXYNOS_DSI
454 ret = platform_driver_register(&dsi_driver);
459 #ifdef CONFIG_DRM_EXYNOS_FIMD
460 ret = platform_driver_register(&fimd_driver);
465 #ifdef CONFIG_DRM_EXYNOS_HDMI
466 ret = platform_driver_register(&hdmi_driver);
469 ret = platform_driver_register(&mixer_driver);
474 #ifdef CONFIG_DRM_EXYNOS_VIDI
475 ret = platform_driver_register(&vidi_driver);
480 #ifdef CONFIG_DRM_EXYNOS_G2D
481 ret = platform_driver_register(&g2d_driver);
486 #ifdef CONFIG_DRM_EXYNOS_FIMC
487 ret = platform_driver_register(&fimc_driver);
492 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
493 ret = platform_driver_register(&rotator_driver);
498 #ifdef CONFIG_DRM_EXYNOS_GSC
499 ret = platform_driver_register(&gsc_driver);
504 #ifdef CONFIG_DRM_EXYNOS_IPP
505 ret = platform_driver_register(&ipp_driver);
509 ret = exynos_platform_device_ipp_register();
514 ret = platform_driver_register(&exynos_drm_platform_driver);
518 exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
520 if (IS_ERR(exynos_drm_pdev)) {
521 ret = PTR_ERR(exynos_drm_pdev);
528 platform_driver_unregister(&exynos_drm_platform_driver);
531 #ifdef CONFIG_DRM_EXYNOS_IPP
532 exynos_platform_device_ipp_unregister();
534 platform_driver_unregister(&ipp_driver);
538 #ifdef CONFIG_DRM_EXYNOS_GSC
539 platform_driver_unregister(&gsc_driver);
543 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
544 platform_driver_unregister(&rotator_driver);
548 #ifdef CONFIG_DRM_EXYNOS_FIMC
549 platform_driver_unregister(&fimc_driver);
553 #ifdef CONFIG_DRM_EXYNOS_G2D
554 platform_driver_unregister(&g2d_driver);
558 #ifdef CONFIG_DRM_EXYNOS_VIDI
559 platform_driver_unregister(&vidi_driver);
563 #ifdef CONFIG_DRM_EXYNOS_HDMI
564 platform_driver_unregister(&mixer_driver);
566 platform_driver_unregister(&hdmi_driver);
570 #ifdef CONFIG_DRM_EXYNOS_FIMD
571 platform_driver_unregister(&fimd_driver);
575 #ifdef CONFIG_DRM_EXYNOS_DSI
576 platform_driver_unregister(&dsi_driver);
580 #ifdef CONFIG_DRM_EXYNOS_DP
581 platform_driver_unregister(&dp_driver);
587 static void __exit exynos_drm_exit(void)
589 platform_device_unregister(exynos_drm_pdev);
591 platform_driver_unregister(&exynos_drm_platform_driver);
593 #ifdef CONFIG_DRM_EXYNOS_IPP
594 exynos_platform_device_ipp_unregister();
595 platform_driver_unregister(&ipp_driver);
598 #ifdef CONFIG_DRM_EXYNOS_GSC
599 platform_driver_unregister(&gsc_driver);
602 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
603 platform_driver_unregister(&rotator_driver);
606 #ifdef CONFIG_DRM_EXYNOS_FIMC
607 platform_driver_unregister(&fimc_driver);
610 #ifdef CONFIG_DRM_EXYNOS_G2D
611 platform_driver_unregister(&g2d_driver);
614 #ifdef CONFIG_DRM_EXYNOS_HDMI
615 platform_driver_unregister(&mixer_driver);
616 platform_driver_unregister(&hdmi_driver);
619 #ifdef CONFIG_DRM_EXYNOS_VIDI
620 platform_driver_unregister(&vidi_driver);
623 #ifdef CONFIG_DRM_EXYNOS_FIMD
624 platform_driver_unregister(&fimd_driver);
627 #ifdef CONFIG_DRM_EXYNOS_DSI
628 platform_driver_unregister(&dsi_driver);
631 #ifdef CONFIG_DRM_EXYNOS_DP
632 platform_driver_unregister(&dp_driver);
636 module_init(exynos_drm_init);
637 module_exit(exynos_drm_exit);
639 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
640 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
641 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
642 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
643 MODULE_LICENSE("GPL");