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.
15 #include <drm/drm_crtc_helper.h>
17 #include <linux/anon_inodes.h>
19 #include <drm/exynos_drm.h>
21 #include "exynos_drm_drv.h"
22 #include "exynos_drm_crtc.h"
23 #include "exynos_drm_encoder.h"
24 #include "exynos_drm_fbdev.h"
25 #include "exynos_drm_fb.h"
26 #include "exynos_drm_gem.h"
27 #include "exynos_drm_plane.h"
28 #include "exynos_drm_vidi.h"
29 #include "exynos_drm_dmabuf.h"
30 #include "exynos_drm_g2d.h"
31 #include "exynos_drm_ipp.h"
32 #include "exynos_drm_iommu.h"
34 #define DRIVER_NAME "exynos"
35 #define DRIVER_DESC "Samsung SoC DRM"
36 #define DRIVER_DATE "20110530"
37 #define DRIVER_MAJOR 1
38 #define DRIVER_MINOR 0
40 #define VBLANK_OFF_DELAY 50000
42 /* platform device pointer for eynos drm device. */
43 static struct platform_device *exynos_drm_pdev;
45 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
47 struct exynos_drm_private *private;
51 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
55 INIT_LIST_HEAD(&private->pageflip_event_list);
56 dev->dev_private = (void *)private;
59 * create mapping to manage iommu table and set a pointer to iommu
60 * mapping structure to iommu_mapping of private data.
61 * also this iommu_mapping can be used to check if iommu is supported
64 ret = drm_create_iommu_mapping(dev);
66 DRM_ERROR("failed to create iommu mapping.\n");
70 drm_mode_config_init(dev);
72 /* init kms poll for handling hpd */
73 drm_kms_helper_poll_init(dev);
75 exynos_drm_mode_config_init(dev);
78 * EXYNOS4 is enough to have two CRTCs and each crtc would be used
79 * without dependency of hardware.
81 for (nr = 0; nr < MAX_CRTC; nr++) {
82 ret = exynos_drm_crtc_create(dev, nr);
84 goto err_release_iommu_mapping;
87 for (nr = 0; nr < MAX_PLANE; nr++) {
88 struct drm_plane *plane;
89 unsigned int possible_crtcs = (1 << MAX_CRTC) - 1;
91 plane = exynos_plane_init(dev, possible_crtcs, false);
93 goto err_release_iommu_mapping;
96 ret = drm_vblank_init(dev, MAX_CRTC);
98 goto err_release_iommu_mapping;
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);
113 * create and configure fb helper and also exynos specific
116 ret = exynos_drm_fbdev_init(dev);
118 DRM_ERROR("failed to initialize drm fbdev\n");
122 drm_vblank_offdelay = VBLANK_OFF_DELAY;
124 platform_set_drvdata(dev->platformdev, dev);
129 exynos_drm_device_unregister(dev);
131 drm_vblank_cleanup(dev);
132 err_release_iommu_mapping:
133 drm_release_iommu_mapping(dev);
135 drm_mode_config_cleanup(dev);
141 static int exynos_drm_unload(struct drm_device *dev)
143 exynos_drm_fbdev_fini(dev);
144 exynos_drm_device_unregister(dev);
145 drm_vblank_cleanup(dev);
146 drm_kms_helper_poll_fini(dev);
147 drm_mode_config_cleanup(dev);
149 drm_release_iommu_mapping(dev);
150 kfree(dev->dev_private);
152 dev->dev_private = NULL;
157 static const struct file_operations exynos_drm_gem_fops = {
158 .mmap = exynos_drm_gem_mmap_buffer,
161 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
163 struct drm_exynos_file_private *file_priv;
164 struct file *anon_filp;
167 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
171 file->driver_priv = file_priv;
173 ret = exynos_drm_subdrv_open(dev, file);
175 goto err_file_priv_free;
177 anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
179 if (IS_ERR(anon_filp)) {
180 ret = PTR_ERR(anon_filp);
181 goto err_subdrv_close;
184 anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
185 file_priv->anon_filp = anon_filp;
190 exynos_drm_subdrv_close(dev, file);
194 file->driver_priv = NULL;
198 static void exynos_drm_preclose(struct drm_device *dev,
199 struct drm_file *file)
201 exynos_drm_subdrv_close(dev, file);
204 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
206 struct exynos_drm_private *private = dev->dev_private;
207 struct drm_exynos_file_private *file_priv;
208 struct drm_pending_vblank_event *v, *vt;
209 struct drm_pending_event *e, *et;
212 if (!file->driver_priv)
215 /* Release all events not unhandled by page flip handler. */
216 spin_lock_irqsave(&dev->event_lock, flags);
217 list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
219 if (v->base.file_priv == file) {
220 list_del(&v->base.link);
221 drm_vblank_put(dev, v->pipe);
222 v->base.destroy(&v->base);
226 /* Release all events handled by page flip handler but not freed. */
227 list_for_each_entry_safe(e, et, &file->event_list, link) {
231 spin_unlock_irqrestore(&dev->event_lock, flags);
233 file_priv = file->driver_priv;
234 if (file_priv->anon_filp)
235 fput(file_priv->anon_filp);
237 kfree(file->driver_priv);
238 file->driver_priv = NULL;
241 static void exynos_drm_lastclose(struct drm_device *dev)
243 exynos_drm_fbdev_restore_mode(dev);
246 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
247 .fault = exynos_drm_gem_fault,
248 .open = drm_gem_vm_open,
249 .close = drm_gem_vm_close,
252 static const struct drm_ioctl_desc exynos_ioctls[] = {
253 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
254 DRM_UNLOCKED | DRM_AUTH),
255 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
256 exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
258 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
259 exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
260 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
261 exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
262 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
263 vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
264 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
265 exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
266 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
267 exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
268 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
269 exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
270 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
271 exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
272 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
273 exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
274 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
275 exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
276 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
277 exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
280 static const struct file_operations exynos_drm_driver_fops = {
281 .owner = THIS_MODULE,
283 .mmap = exynos_drm_gem_mmap,
286 .unlocked_ioctl = drm_ioctl,
288 .compat_ioctl = drm_compat_ioctl,
290 .release = drm_release,
293 static struct drm_driver exynos_drm_driver = {
294 .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET |
295 DRIVER_GEM | DRIVER_PRIME,
296 .load = exynos_drm_load,
297 .unload = exynos_drm_unload,
298 .open = exynos_drm_open,
299 .preclose = exynos_drm_preclose,
300 .lastclose = exynos_drm_lastclose,
301 .postclose = exynos_drm_postclose,
302 .get_vblank_counter = drm_vblank_count,
303 .enable_vblank = exynos_drm_crtc_enable_vblank,
304 .disable_vblank = exynos_drm_crtc_disable_vblank,
305 .gem_free_object = exynos_drm_gem_free_object,
306 .gem_vm_ops = &exynos_drm_gem_vm_ops,
307 .dumb_create = exynos_drm_gem_dumb_create,
308 .dumb_map_offset = exynos_drm_gem_dumb_map_offset,
309 .dumb_destroy = drm_gem_dumb_destroy,
310 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
311 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
312 .gem_prime_export = exynos_dmabuf_prime_export,
313 .gem_prime_import = exynos_dmabuf_prime_import,
314 .ioctls = exynos_ioctls,
315 .num_ioctls = ARRAY_SIZE(exynos_ioctls),
316 .fops = &exynos_drm_driver_fops,
320 .major = DRIVER_MAJOR,
321 .minor = DRIVER_MINOR,
324 static int exynos_drm_platform_probe(struct platform_device *pdev)
328 ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
332 return drm_platform_init(&exynos_drm_driver, pdev);
335 static int exynos_drm_platform_remove(struct platform_device *pdev)
337 drm_put_dev(platform_get_drvdata(pdev));
342 static struct platform_driver exynos_drm_platform_driver = {
343 .probe = exynos_drm_platform_probe,
344 .remove = exynos_drm_platform_remove,
346 .owner = THIS_MODULE,
347 .name = "exynos-drm",
351 static int __init exynos_drm_init(void)
355 #ifdef CONFIG_DRM_EXYNOS_FIMD
356 ret = platform_driver_register(&fimd_driver);
361 #ifdef CONFIG_DRM_EXYNOS_HDMI
362 ret = platform_driver_register(&hdmi_driver);
365 ret = platform_driver_register(&mixer_driver);
368 ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
370 goto out_common_hdmi;
372 ret = exynos_platform_device_hdmi_register();
374 goto out_common_hdmi_dev;
377 #ifdef CONFIG_DRM_EXYNOS_VIDI
378 ret = platform_driver_register(&vidi_driver);
383 #ifdef CONFIG_DRM_EXYNOS_G2D
384 ret = platform_driver_register(&g2d_driver);
389 #ifdef CONFIG_DRM_EXYNOS_FIMC
390 ret = platform_driver_register(&fimc_driver);
395 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
396 ret = platform_driver_register(&rotator_driver);
401 #ifdef CONFIG_DRM_EXYNOS_GSC
402 ret = platform_driver_register(&gsc_driver);
407 #ifdef CONFIG_DRM_EXYNOS_IPP
408 ret = platform_driver_register(&ipp_driver);
412 ret = exynos_platform_device_ipp_register();
417 ret = platform_driver_register(&exynos_drm_platform_driver);
421 exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
423 if (IS_ERR(exynos_drm_pdev)) {
424 ret = PTR_ERR(exynos_drm_pdev);
431 platform_driver_unregister(&exynos_drm_platform_driver);
434 #ifdef CONFIG_DRM_EXYNOS_IPP
435 exynos_platform_device_ipp_unregister();
437 platform_driver_unregister(&ipp_driver);
441 #ifdef CONFIG_DRM_EXYNOS_GSC
442 platform_driver_unregister(&gsc_driver);
446 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
447 platform_driver_unregister(&rotator_driver);
451 #ifdef CONFIG_DRM_EXYNOS_FIMC
452 platform_driver_unregister(&fimc_driver);
456 #ifdef CONFIG_DRM_EXYNOS_G2D
457 platform_driver_unregister(&g2d_driver);
461 #ifdef CONFIG_DRM_EXYNOS_VIDI
462 platform_driver_unregister(&vidi_driver);
466 #ifdef CONFIG_DRM_EXYNOS_HDMI
467 exynos_platform_device_hdmi_unregister();
469 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
471 platform_driver_unregister(&mixer_driver);
473 platform_driver_unregister(&hdmi_driver);
477 #ifdef CONFIG_DRM_EXYNOS_FIMD
478 platform_driver_unregister(&fimd_driver);
484 static void __exit exynos_drm_exit(void)
486 platform_device_unregister(exynos_drm_pdev);
488 platform_driver_unregister(&exynos_drm_platform_driver);
490 #ifdef CONFIG_DRM_EXYNOS_IPP
491 exynos_platform_device_ipp_unregister();
492 platform_driver_unregister(&ipp_driver);
495 #ifdef CONFIG_DRM_EXYNOS_GSC
496 platform_driver_unregister(&gsc_driver);
499 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
500 platform_driver_unregister(&rotator_driver);
503 #ifdef CONFIG_DRM_EXYNOS_FIMC
504 platform_driver_unregister(&fimc_driver);
507 #ifdef CONFIG_DRM_EXYNOS_G2D
508 platform_driver_unregister(&g2d_driver);
511 #ifdef CONFIG_DRM_EXYNOS_HDMI
512 exynos_platform_device_hdmi_unregister();
513 platform_driver_unregister(&exynos_drm_common_hdmi_driver);
514 platform_driver_unregister(&mixer_driver);
515 platform_driver_unregister(&hdmi_driver);
518 #ifdef CONFIG_DRM_EXYNOS_VIDI
519 platform_driver_unregister(&vidi_driver);
522 #ifdef CONFIG_DRM_EXYNOS_FIMD
523 platform_driver_unregister(&fimd_driver);
527 module_init(exynos_drm_init);
528 module_exit(exynos_drm_exit);
530 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
531 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
532 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
533 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
534 MODULE_LICENSE("GPL");