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_atomic.h>
17 #include <drm/drm_atomic_helper.h>
18 #include <drm/drm_crtc_helper.h>
20 #include <linux/component.h>
22 #include <drm/exynos_drm.h>
24 #include "exynos_drm_drv.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_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 int exynos_atomic_check(struct drm_device
*dev
,
41 struct drm_atomic_state
*state
)
45 ret
= drm_atomic_helper_check_modeset(dev
, state
);
49 ret
= drm_atomic_normalize_zpos(dev
, state
);
53 ret
= drm_atomic_helper_check_planes(dev
, state
);
60 static int exynos_drm_open(struct drm_device
*dev
, struct drm_file
*file
)
62 struct drm_exynos_file_private
*file_priv
;
65 file_priv
= kzalloc(sizeof(*file_priv
), GFP_KERNEL
);
69 file
->driver_priv
= file_priv
;
71 ret
= exynos_drm_subdrv_open(dev
, file
);
73 goto err_file_priv_free
;
79 file
->driver_priv
= NULL
;
83 static void exynos_drm_postclose(struct drm_device
*dev
, struct drm_file
*file
)
85 exynos_drm_subdrv_close(dev
, file
);
86 kfree(file
->driver_priv
);
87 file
->driver_priv
= NULL
;
90 static void exynos_drm_lastclose(struct drm_device
*dev
)
92 exynos_drm_fbdev_restore_mode(dev
);
95 static const struct vm_operations_struct exynos_drm_gem_vm_ops
= {
96 .fault
= exynos_drm_gem_fault
,
97 .open
= drm_gem_vm_open
,
98 .close
= drm_gem_vm_close
,
101 static const struct drm_ioctl_desc exynos_ioctls
[] = {
102 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE
, exynos_drm_gem_create_ioctl
,
103 DRM_AUTH
| DRM_RENDER_ALLOW
),
104 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP
, exynos_drm_gem_map_ioctl
,
105 DRM_AUTH
| DRM_RENDER_ALLOW
),
106 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET
, exynos_drm_gem_get_ioctl
,
108 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION
, vidi_connection_ioctl
,
110 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER
, exynos_g2d_get_ver_ioctl
,
111 DRM_AUTH
| DRM_RENDER_ALLOW
),
112 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST
, exynos_g2d_set_cmdlist_ioctl
,
113 DRM_AUTH
| DRM_RENDER_ALLOW
),
114 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC
, exynos_g2d_exec_ioctl
,
115 DRM_AUTH
| DRM_RENDER_ALLOW
),
116 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY
, exynos_drm_ipp_get_property
,
117 DRM_AUTH
| DRM_RENDER_ALLOW
),
118 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY
, exynos_drm_ipp_set_property
,
119 DRM_AUTH
| DRM_RENDER_ALLOW
),
120 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF
, exynos_drm_ipp_queue_buf
,
121 DRM_AUTH
| DRM_RENDER_ALLOW
),
122 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL
, exynos_drm_ipp_cmd_ctrl
,
123 DRM_AUTH
| DRM_RENDER_ALLOW
),
126 static const struct file_operations exynos_drm_driver_fops
= {
127 .owner
= THIS_MODULE
,
129 .mmap
= exynos_drm_gem_mmap
,
132 .unlocked_ioctl
= drm_ioctl
,
133 .compat_ioctl
= drm_compat_ioctl
,
134 .release
= drm_release
,
137 static struct drm_driver exynos_drm_driver
= {
138 .driver_features
= DRIVER_MODESET
| DRIVER_GEM
| DRIVER_PRIME
139 | DRIVER_ATOMIC
| DRIVER_RENDER
,
140 .open
= exynos_drm_open
,
141 .lastclose
= exynos_drm_lastclose
,
142 .postclose
= exynos_drm_postclose
,
143 .gem_free_object_unlocked
= exynos_drm_gem_free_object
,
144 .gem_vm_ops
= &exynos_drm_gem_vm_ops
,
145 .dumb_create
= exynos_drm_gem_dumb_create
,
146 .prime_handle_to_fd
= drm_gem_prime_handle_to_fd
,
147 .prime_fd_to_handle
= drm_gem_prime_fd_to_handle
,
148 .gem_prime_export
= drm_gem_prime_export
,
149 .gem_prime_import
= exynos_drm_gem_prime_import
,
150 .gem_prime_get_sg_table
= exynos_drm_gem_prime_get_sg_table
,
151 .gem_prime_import_sg_table
= exynos_drm_gem_prime_import_sg_table
,
152 .gem_prime_vmap
= exynos_drm_gem_prime_vmap
,
153 .gem_prime_vunmap
= exynos_drm_gem_prime_vunmap
,
154 .gem_prime_mmap
= exynos_drm_gem_prime_mmap
,
155 .ioctls
= exynos_ioctls
,
156 .num_ioctls
= ARRAY_SIZE(exynos_ioctls
),
157 .fops
= &exynos_drm_driver_fops
,
161 .major
= DRIVER_MAJOR
,
162 .minor
= DRIVER_MINOR
,
165 #ifdef CONFIG_PM_SLEEP
166 static int exynos_drm_suspend(struct device
*dev
)
168 struct drm_device
*drm_dev
= dev_get_drvdata(dev
);
169 struct exynos_drm_private
*private;
171 if (pm_runtime_suspended(dev
) || !drm_dev
)
174 private = drm_dev
->dev_private
;
176 drm_kms_helper_poll_disable(drm_dev
);
177 exynos_drm_fbdev_suspend(drm_dev
);
178 private->suspend_state
= drm_atomic_helper_suspend(drm_dev
);
179 if (IS_ERR(private->suspend_state
)) {
180 exynos_drm_fbdev_resume(drm_dev
);
181 drm_kms_helper_poll_enable(drm_dev
);
182 return PTR_ERR(private->suspend_state
);
188 static int exynos_drm_resume(struct device
*dev
)
190 struct drm_device
*drm_dev
= dev_get_drvdata(dev
);
191 struct exynos_drm_private
*private;
193 if (pm_runtime_suspended(dev
) || !drm_dev
)
196 private = drm_dev
->dev_private
;
197 drm_atomic_helper_resume(drm_dev
, private->suspend_state
);
198 exynos_drm_fbdev_resume(drm_dev
);
199 drm_kms_helper_poll_enable(drm_dev
);
205 static const struct dev_pm_ops exynos_drm_pm_ops
= {
206 SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_suspend
, exynos_drm_resume
)
209 /* forward declaration */
210 static struct platform_driver exynos_drm_platform_driver
;
212 struct exynos_drm_driver_info
{
213 struct platform_driver
*driver
;
217 #define DRM_COMPONENT_DRIVER BIT(0) /* supports component framework */
218 #define DRM_VIRTUAL_DEVICE BIT(1) /* create virtual platform device */
219 #define DRM_DMA_DEVICE BIT(2) /* can be used for dma allocations */
221 #define DRV_PTR(drv, cond) (IS_ENABLED(cond) ? &drv : NULL)
224 * Connector drivers should not be placed before associated crtc drivers,
225 * because connector requires pipe number of its crtc during initialization.
227 static struct exynos_drm_driver_info exynos_drm_drivers
[] = {
229 DRV_PTR(fimd_driver
, CONFIG_DRM_EXYNOS_FIMD
),
230 DRM_COMPONENT_DRIVER
| DRM_DMA_DEVICE
232 DRV_PTR(exynos5433_decon_driver
, CONFIG_DRM_EXYNOS5433_DECON
),
233 DRM_COMPONENT_DRIVER
| DRM_DMA_DEVICE
235 DRV_PTR(decon_driver
, CONFIG_DRM_EXYNOS7_DECON
),
236 DRM_COMPONENT_DRIVER
| DRM_DMA_DEVICE
238 DRV_PTR(mixer_driver
, CONFIG_DRM_EXYNOS_MIXER
),
239 DRM_COMPONENT_DRIVER
| DRM_DMA_DEVICE
241 DRV_PTR(mic_driver
, CONFIG_DRM_EXYNOS_MIC
),
244 DRV_PTR(dp_driver
, CONFIG_DRM_EXYNOS_DP
),
247 DRV_PTR(dsi_driver
, CONFIG_DRM_EXYNOS_DSI
),
250 DRV_PTR(hdmi_driver
, CONFIG_DRM_EXYNOS_HDMI
),
253 DRV_PTR(vidi_driver
, CONFIG_DRM_EXYNOS_VIDI
),
254 DRM_COMPONENT_DRIVER
| DRM_VIRTUAL_DEVICE
256 DRV_PTR(g2d_driver
, CONFIG_DRM_EXYNOS_G2D
),
258 DRV_PTR(fimc_driver
, CONFIG_DRM_EXYNOS_FIMC
),
260 DRV_PTR(rotator_driver
, CONFIG_DRM_EXYNOS_ROTATOR
),
262 DRV_PTR(gsc_driver
, CONFIG_DRM_EXYNOS_GSC
),
264 DRV_PTR(ipp_driver
, CONFIG_DRM_EXYNOS_IPP
),
267 &exynos_drm_platform_driver
,
272 static int compare_dev(struct device
*dev
, void *data
)
274 return dev
== (struct device
*)data
;
277 static struct component_match
*exynos_drm_match_add(struct device
*dev
)
279 struct component_match
*match
= NULL
;
282 for (i
= 0; i
< ARRAY_SIZE(exynos_drm_drivers
); ++i
) {
283 struct exynos_drm_driver_info
*info
= &exynos_drm_drivers
[i
];
284 struct device
*p
= NULL
, *d
;
286 if (!info
->driver
|| !(info
->flags
& DRM_COMPONENT_DRIVER
))
289 while ((d
= bus_find_device(&platform_bus_type
, p
,
290 &info
->driver
->driver
,
291 (void *)platform_bus_type
.match
))) {
293 component_match_add(dev
, &match
, compare_dev
, d
);
299 return match
?: ERR_PTR(-ENODEV
);
302 static struct device
*exynos_drm_get_dma_device(void)
306 for (i
= 0; i
< ARRAY_SIZE(exynos_drm_drivers
); ++i
) {
307 struct exynos_drm_driver_info
*info
= &exynos_drm_drivers
[i
];
310 if (!info
->driver
|| !(info
->flags
& DRM_DMA_DEVICE
))
313 while ((dev
= bus_find_device(&platform_bus_type
, NULL
,
314 &info
->driver
->driver
,
315 (void *)platform_bus_type
.match
))) {
323 static int exynos_drm_bind(struct device
*dev
)
325 struct exynos_drm_private
*private;
326 struct drm_encoder
*encoder
;
327 struct drm_device
*drm
;
328 unsigned int clone_mask
;
331 drm
= drm_dev_alloc(&exynos_drm_driver
, dev
);
335 private = kzalloc(sizeof(struct exynos_drm_private
), GFP_KERNEL
);
341 init_waitqueue_head(&private->wait
);
342 spin_lock_init(&private->lock
);
344 dev_set_drvdata(dev
, drm
);
345 drm
->dev_private
= (void *)private;
347 /* the first real CRTC device is used for all dma mapping operations */
348 private->dma_dev
= exynos_drm_get_dma_device();
349 if (!private->dma_dev
) {
350 DRM_ERROR("no device found for DMA mapping operations.\n");
352 goto err_free_private
;
354 DRM_INFO("Exynos DRM: using %s device for DMA mapping operations\n",
355 dev_name(private->dma_dev
));
357 /* create common IOMMU mapping for all devices attached to Exynos DRM */
358 ret
= drm_create_iommu_mapping(drm
);
360 DRM_ERROR("failed to create iommu mapping.\n");
361 goto err_free_private
;
364 drm_mode_config_init(drm
);
366 exynos_drm_mode_config_init(drm
);
368 /* setup possible_clones. */
371 list_for_each_entry(encoder
, &drm
->mode_config
.encoder_list
, head
)
372 clone_mask
|= (1 << (cnt
++));
374 list_for_each_entry(encoder
, &drm
->mode_config
.encoder_list
, head
)
375 encoder
->possible_clones
= clone_mask
;
377 /* Try to bind all sub drivers. */
378 ret
= component_bind_all(drm
->dev
, drm
);
380 goto err_mode_config_cleanup
;
382 ret
= drm_vblank_init(drm
, drm
->mode_config
.num_crtc
);
386 /* Probe non kms sub drivers and virtual display driver. */
387 ret
= exynos_drm_device_subdrv_probe(drm
);
391 drm_mode_config_reset(drm
);
394 * enable drm irq mode.
395 * - with irq_enabled = true, we can use the vblank feature.
397 * P.S. note that we wouldn't use drm irq handler but
398 * just specific driver own one instead because
399 * drm framework supports only one irq handler.
401 drm
->irq_enabled
= true;
403 /* init kms poll for handling hpd */
404 drm_kms_helper_poll_init(drm
);
406 ret
= exynos_drm_fbdev_init(drm
);
408 goto err_cleanup_poll
;
410 /* register the DRM device */
411 ret
= drm_dev_register(drm
, 0);
413 goto err_cleanup_fbdev
;
418 exynos_drm_fbdev_fini(drm
);
420 drm_kms_helper_poll_fini(drm
);
421 exynos_drm_device_subdrv_remove(drm
);
423 component_unbind_all(drm
->dev
, drm
);
424 err_mode_config_cleanup
:
425 drm_mode_config_cleanup(drm
);
426 drm_release_iommu_mapping(drm
);
435 static void exynos_drm_unbind(struct device
*dev
)
437 struct drm_device
*drm
= dev_get_drvdata(dev
);
439 drm_dev_unregister(drm
);
441 exynos_drm_device_subdrv_remove(drm
);
443 exynos_drm_fbdev_fini(drm
);
444 drm_kms_helper_poll_fini(drm
);
446 component_unbind_all(drm
->dev
, drm
);
447 drm_mode_config_cleanup(drm
);
448 drm_release_iommu_mapping(drm
);
450 kfree(drm
->dev_private
);
451 drm
->dev_private
= NULL
;
452 dev_set_drvdata(dev
, NULL
);
457 static const struct component_master_ops exynos_drm_ops
= {
458 .bind
= exynos_drm_bind
,
459 .unbind
= exynos_drm_unbind
,
462 static int exynos_drm_platform_probe(struct platform_device
*pdev
)
464 struct component_match
*match
;
466 pdev
->dev
.coherent_dma_mask
= DMA_BIT_MASK(32);
468 match
= exynos_drm_match_add(&pdev
->dev
);
470 return PTR_ERR(match
);
472 return component_master_add_with_match(&pdev
->dev
, &exynos_drm_ops
,
476 static int exynos_drm_platform_remove(struct platform_device
*pdev
)
478 component_master_del(&pdev
->dev
, &exynos_drm_ops
);
482 static struct platform_driver exynos_drm_platform_driver
= {
483 .probe
= exynos_drm_platform_probe
,
484 .remove
= exynos_drm_platform_remove
,
486 .name
= "exynos-drm",
487 .pm
= &exynos_drm_pm_ops
,
491 static void exynos_drm_unregister_devices(void)
495 for (i
= ARRAY_SIZE(exynos_drm_drivers
) - 1; i
>= 0; --i
) {
496 struct exynos_drm_driver_info
*info
= &exynos_drm_drivers
[i
];
499 if (!info
->driver
|| !(info
->flags
& DRM_VIRTUAL_DEVICE
))
502 while ((dev
= bus_find_device(&platform_bus_type
, NULL
,
503 &info
->driver
->driver
,
504 (void *)platform_bus_type
.match
))) {
506 platform_device_unregister(to_platform_device(dev
));
511 static int exynos_drm_register_devices(void)
513 struct platform_device
*pdev
;
516 for (i
= 0; i
< ARRAY_SIZE(exynos_drm_drivers
); ++i
) {
517 struct exynos_drm_driver_info
*info
= &exynos_drm_drivers
[i
];
519 if (!info
->driver
|| !(info
->flags
& DRM_VIRTUAL_DEVICE
))
522 pdev
= platform_device_register_simple(
523 info
->driver
->driver
.name
, -1, NULL
, 0);
530 exynos_drm_unregister_devices();
531 return PTR_ERR(pdev
);
534 static void exynos_drm_unregister_drivers(void)
538 for (i
= ARRAY_SIZE(exynos_drm_drivers
) - 1; i
>= 0; --i
) {
539 struct exynos_drm_driver_info
*info
= &exynos_drm_drivers
[i
];
544 platform_driver_unregister(info
->driver
);
548 static int exynos_drm_register_drivers(void)
552 for (i
= 0; i
< ARRAY_SIZE(exynos_drm_drivers
); ++i
) {
553 struct exynos_drm_driver_info
*info
= &exynos_drm_drivers
[i
];
558 ret
= platform_driver_register(info
->driver
);
564 exynos_drm_unregister_drivers();
568 static int exynos_drm_init(void)
572 ret
= exynos_drm_register_devices();
576 ret
= exynos_drm_register_drivers();
578 goto err_unregister_pdevs
;
582 err_unregister_pdevs
:
583 exynos_drm_unregister_devices();
588 static void exynos_drm_exit(void)
590 exynos_drm_unregister_drivers();
591 exynos_drm_unregister_devices();
594 module_init(exynos_drm_init
);
595 module_exit(exynos_drm_exit
);
597 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
598 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
599 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
600 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
601 MODULE_LICENSE("GPL");