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 /* init kms poll for handling hpd */
75 drm_kms_helper_poll_init(dev
);
77 exynos_drm_mode_config_init(dev
);
79 ret
= exynos_drm_initialize_managers(dev
);
81 goto err_mode_config_cleanup
;
83 for (nr
= 0; nr
< MAX_PLANE
; nr
++) {
84 struct drm_plane
*plane
;
85 unsigned long possible_crtcs
= (1 << MAX_CRTC
) - 1;
87 plane
= exynos_plane_init(dev
, possible_crtcs
, false);
89 goto err_manager_cleanup
;
92 ret
= exynos_drm_initialize_displays(dev
);
94 goto err_manager_cleanup
;
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_FIMD
454 ret
= platform_driver_register(&fimd_driver
);
459 #ifdef CONFIG_DRM_EXYNOS_HDMI
460 ret
= platform_driver_register(&hdmi_driver
);
463 ret
= platform_driver_register(&mixer_driver
);
468 #ifdef CONFIG_DRM_EXYNOS_VIDI
469 ret
= platform_driver_register(&vidi_driver
);
474 #ifdef CONFIG_DRM_EXYNOS_G2D
475 ret
= platform_driver_register(&g2d_driver
);
480 #ifdef CONFIG_DRM_EXYNOS_FIMC
481 ret
= platform_driver_register(&fimc_driver
);
486 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
487 ret
= platform_driver_register(&rotator_driver
);
492 #ifdef CONFIG_DRM_EXYNOS_GSC
493 ret
= platform_driver_register(&gsc_driver
);
498 #ifdef CONFIG_DRM_EXYNOS_IPP
499 ret
= platform_driver_register(&ipp_driver
);
503 ret
= exynos_platform_device_ipp_register();
508 ret
= platform_driver_register(&exynos_drm_platform_driver
);
512 exynos_drm_pdev
= platform_device_register_simple("exynos-drm", -1,
514 if (IS_ERR(exynos_drm_pdev
)) {
515 ret
= PTR_ERR(exynos_drm_pdev
);
522 platform_driver_unregister(&exynos_drm_platform_driver
);
525 #ifdef CONFIG_DRM_EXYNOS_IPP
526 exynos_platform_device_ipp_unregister();
528 platform_driver_unregister(&ipp_driver
);
532 #ifdef CONFIG_DRM_EXYNOS_GSC
533 platform_driver_unregister(&gsc_driver
);
537 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
538 platform_driver_unregister(&rotator_driver
);
542 #ifdef CONFIG_DRM_EXYNOS_FIMC
543 platform_driver_unregister(&fimc_driver
);
547 #ifdef CONFIG_DRM_EXYNOS_G2D
548 platform_driver_unregister(&g2d_driver
);
552 #ifdef CONFIG_DRM_EXYNOS_VIDI
553 platform_driver_unregister(&vidi_driver
);
557 #ifdef CONFIG_DRM_EXYNOS_HDMI
558 platform_driver_unregister(&mixer_driver
);
560 platform_driver_unregister(&hdmi_driver
);
564 #ifdef CONFIG_DRM_EXYNOS_FIMD
565 platform_driver_unregister(&fimd_driver
);
569 #ifdef CONFIG_DRM_EXYNOS_DP
570 platform_driver_unregister(&dp_driver
);
576 static void __exit
exynos_drm_exit(void)
578 platform_device_unregister(exynos_drm_pdev
);
580 platform_driver_unregister(&exynos_drm_platform_driver
);
582 #ifdef CONFIG_DRM_EXYNOS_IPP
583 exynos_platform_device_ipp_unregister();
584 platform_driver_unregister(&ipp_driver
);
587 #ifdef CONFIG_DRM_EXYNOS_GSC
588 platform_driver_unregister(&gsc_driver
);
591 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
592 platform_driver_unregister(&rotator_driver
);
595 #ifdef CONFIG_DRM_EXYNOS_FIMC
596 platform_driver_unregister(&fimc_driver
);
599 #ifdef CONFIG_DRM_EXYNOS_G2D
600 platform_driver_unregister(&g2d_driver
);
603 #ifdef CONFIG_DRM_EXYNOS_HDMI
604 platform_driver_unregister(&mixer_driver
);
605 platform_driver_unregister(&hdmi_driver
);
608 #ifdef CONFIG_DRM_EXYNOS_VIDI
609 platform_driver_unregister(&vidi_driver
);
612 #ifdef CONFIG_DRM_EXYNOS_FIMD
613 platform_driver_unregister(&fimd_driver
);
616 #ifdef CONFIG_DRM_EXYNOS_DP
617 platform_driver_unregister(&dp_driver
);
621 module_init(exynos_drm_init
);
622 module_exit(exynos_drm_exit
);
624 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
625 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
626 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
627 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
628 MODULE_LICENSE("GPL");