2 * Copyright (C) 2012 Avionic Design GmbH
3 * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
10 #include <linux/host1x.h>
11 #include <linux/iommu.h>
13 #include <drm/drm_atomic.h>
14 #include <drm/drm_atomic_helper.h>
19 #define DRIVER_NAME "tegra"
20 #define DRIVER_DESC "NVIDIA Tegra graphics"
21 #define DRIVER_DATE "20120330"
22 #define DRIVER_MAJOR 0
23 #define DRIVER_MINOR 0
24 #define DRIVER_PATCHLEVEL 0
26 struct tegra_drm_file {
27 struct list_head contexts;
30 static void tegra_atomic_schedule(struct tegra_drm *tegra,
31 struct drm_atomic_state *state)
33 tegra->commit.state = state;
34 schedule_work(&tegra->commit.work);
37 static void tegra_atomic_complete(struct tegra_drm *tegra,
38 struct drm_atomic_state *state)
40 struct drm_device *drm = tegra->drm;
43 * Everything below can be run asynchronously without the need to grab
44 * any modeset locks at all under one condition: It must be guaranteed
45 * that the asynchronous work has either been cancelled (if the driver
46 * supports it, which at least requires that the framebuffers get
47 * cleaned up with drm_atomic_helper_cleanup_planes()) or completed
48 * before the new state gets committed on the software side with
49 * drm_atomic_helper_swap_state().
51 * This scheme allows new atomic state updates to be prepared and
52 * checked in parallel to the asynchronous completion of the previous
53 * update. Which is important since compositors need to figure out the
54 * composition of the next frame right after having submitted the
58 drm_atomic_helper_commit_modeset_disables(drm, state);
59 drm_atomic_helper_commit_planes(drm, state);
60 drm_atomic_helper_commit_modeset_enables(drm, state);
62 drm_atomic_helper_wait_for_vblanks(drm, state);
64 drm_atomic_helper_cleanup_planes(drm, state);
65 drm_atomic_state_free(state);
68 static void tegra_atomic_work(struct work_struct *work)
70 struct tegra_drm *tegra = container_of(work, struct tegra_drm,
73 tegra_atomic_complete(tegra, tegra->commit.state);
76 static int tegra_atomic_commit(struct drm_device *drm,
77 struct drm_atomic_state *state, bool async)
79 struct tegra_drm *tegra = drm->dev_private;
82 err = drm_atomic_helper_prepare_planes(drm, state);
86 /* serialize outstanding asynchronous commits */
87 mutex_lock(&tegra->commit.lock);
88 flush_work(&tegra->commit.work);
91 * This is the point of no return - everything below never fails except
92 * when the hw goes bonghits. Which means we can commit the new state on
93 * the software side now.
96 drm_atomic_helper_swap_state(drm, state);
99 tegra_atomic_schedule(tegra, state);
101 tegra_atomic_complete(tegra, state);
103 mutex_unlock(&tegra->commit.lock);
107 static const struct drm_mode_config_funcs tegra_drm_mode_funcs = {
108 .fb_create = tegra_fb_create,
109 #ifdef CONFIG_DRM_TEGRA_FBDEV
110 .output_poll_changed = tegra_fb_output_poll_changed,
112 .atomic_check = drm_atomic_helper_check,
113 .atomic_commit = tegra_atomic_commit,
116 static int tegra_drm_load(struct drm_device *drm, unsigned long flags)
118 struct host1x_device *device = to_host1x_device(drm->dev);
119 struct tegra_drm *tegra;
122 tegra = kzalloc(sizeof(*tegra), GFP_KERNEL);
126 if (iommu_present(&platform_bus_type)) {
127 struct iommu_domain_geometry *geometry;
130 tegra->domain = iommu_domain_alloc(&platform_bus_type);
131 if (!tegra->domain) {
136 geometry = &tegra->domain->geometry;
137 start = geometry->aperture_start;
138 end = geometry->aperture_end;
140 DRM_DEBUG("IOMMU context initialized (aperture: %#llx-%#llx)\n",
142 drm_mm_init(&tegra->mm, start, end - start + 1);
145 mutex_init(&tegra->clients_lock);
146 INIT_LIST_HEAD(&tegra->clients);
148 mutex_init(&tegra->commit.lock);
149 INIT_WORK(&tegra->commit.work, tegra_atomic_work);
151 drm->dev_private = tegra;
154 drm_mode_config_init(drm);
156 drm->mode_config.min_width = 0;
157 drm->mode_config.min_height = 0;
159 drm->mode_config.max_width = 4096;
160 drm->mode_config.max_height = 4096;
162 drm->mode_config.funcs = &tegra_drm_mode_funcs;
164 err = tegra_drm_fb_prepare(drm);
168 drm_kms_helper_poll_init(drm);
170 err = host1x_device_init(device);
175 * We don't use the drm_irq_install() helpers provided by the DRM
176 * core, so we need to set this manually in order to allow the
177 * DRM_IOCTL_WAIT_VBLANK to operate correctly.
179 drm->irq_enabled = true;
181 /* syncpoints are used for full 32-bit hardware VBLANK counters */
182 drm->max_vblank_count = 0xffffffff;
183 drm->vblank_disable_allowed = true;
185 err = drm_vblank_init(drm, drm->mode_config.num_crtc);
189 drm_mode_config_reset(drm);
191 err = tegra_drm_fb_init(drm);
198 drm_vblank_cleanup(drm);
200 host1x_device_exit(device);
202 drm_kms_helper_poll_fini(drm);
203 tegra_drm_fb_free(drm);
205 drm_mode_config_cleanup(drm);
208 iommu_domain_free(tegra->domain);
209 drm_mm_takedown(&tegra->mm);
216 static int tegra_drm_unload(struct drm_device *drm)
218 struct host1x_device *device = to_host1x_device(drm->dev);
219 struct tegra_drm *tegra = drm->dev_private;
222 drm_kms_helper_poll_fini(drm);
223 tegra_drm_fb_exit(drm);
224 drm_mode_config_cleanup(drm);
225 drm_vblank_cleanup(drm);
227 err = host1x_device_exit(device);
232 iommu_domain_free(tegra->domain);
233 drm_mm_takedown(&tegra->mm);
241 static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp)
243 struct tegra_drm_file *fpriv;
245 fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
249 INIT_LIST_HEAD(&fpriv->contexts);
250 filp->driver_priv = fpriv;
255 static void tegra_drm_context_free(struct tegra_drm_context *context)
257 context->client->ops->close_channel(context);
261 static void tegra_drm_lastclose(struct drm_device *drm)
263 #ifdef CONFIG_DRM_TEGRA_FBDEV
264 struct tegra_drm *tegra = drm->dev_private;
266 tegra_fbdev_restore_mode(tegra->fbdev);
270 static struct host1x_bo *
271 host1x_bo_lookup(struct drm_device *drm, struct drm_file *file, u32 handle)
273 struct drm_gem_object *gem;
276 gem = drm_gem_object_lookup(drm, file, handle);
280 mutex_lock(&drm->struct_mutex);
281 drm_gem_object_unreference(gem);
282 mutex_unlock(&drm->struct_mutex);
284 bo = to_tegra_bo(gem);
288 static int host1x_reloc_copy_from_user(struct host1x_reloc *dest,
289 struct drm_tegra_reloc __user *src,
290 struct drm_device *drm,
291 struct drm_file *file)
296 err = get_user(cmdbuf, &src->cmdbuf.handle);
300 err = get_user(dest->cmdbuf.offset, &src->cmdbuf.offset);
304 err = get_user(target, &src->target.handle);
308 err = get_user(dest->target.offset, &src->target.offset);
312 err = get_user(dest->shift, &src->shift);
316 dest->cmdbuf.bo = host1x_bo_lookup(drm, file, cmdbuf);
317 if (!dest->cmdbuf.bo)
320 dest->target.bo = host1x_bo_lookup(drm, file, target);
321 if (!dest->target.bo)
327 int tegra_drm_submit(struct tegra_drm_context *context,
328 struct drm_tegra_submit *args, struct drm_device *drm,
329 struct drm_file *file)
331 unsigned int num_cmdbufs = args->num_cmdbufs;
332 unsigned int num_relocs = args->num_relocs;
333 unsigned int num_waitchks = args->num_waitchks;
334 struct drm_tegra_cmdbuf __user *cmdbufs =
335 (void __user *)(uintptr_t)args->cmdbufs;
336 struct drm_tegra_reloc __user *relocs =
337 (void __user *)(uintptr_t)args->relocs;
338 struct drm_tegra_waitchk __user *waitchks =
339 (void __user *)(uintptr_t)args->waitchks;
340 struct drm_tegra_syncpt syncpt;
341 struct host1x_job *job;
344 /* We don't yet support other than one syncpt_incr struct per submit */
345 if (args->num_syncpts != 1)
348 job = host1x_job_alloc(context->channel, args->num_cmdbufs,
349 args->num_relocs, args->num_waitchks);
353 job->num_relocs = args->num_relocs;
354 job->num_waitchk = args->num_waitchks;
355 job->client = (u32)args->context;
356 job->class = context->client->base.class;
357 job->serialize = true;
359 while (num_cmdbufs) {
360 struct drm_tegra_cmdbuf cmdbuf;
361 struct host1x_bo *bo;
363 if (copy_from_user(&cmdbuf, cmdbufs, sizeof(cmdbuf))) {
368 bo = host1x_bo_lookup(drm, file, cmdbuf.handle);
374 host1x_job_add_gather(job, bo, cmdbuf.words, cmdbuf.offset);
379 /* copy and resolve relocations from submit */
380 while (num_relocs--) {
381 err = host1x_reloc_copy_from_user(&job->relocarray[num_relocs],
382 &relocs[num_relocs], drm,
388 if (copy_from_user(job->waitchk, waitchks,
389 sizeof(*waitchks) * num_waitchks)) {
394 if (copy_from_user(&syncpt, (void __user *)(uintptr_t)args->syncpts,
400 job->is_addr_reg = context->client->ops->is_addr_reg;
401 job->syncpt_incrs = syncpt.incrs;
402 job->syncpt_id = syncpt.id;
403 job->timeout = 10000;
405 if (args->timeout && args->timeout < 10000)
406 job->timeout = args->timeout;
408 err = host1x_job_pin(job, context->client->base.dev);
412 err = host1x_job_submit(job);
416 args->fence = job->syncpt_end;
422 host1x_job_unpin(job);
429 #ifdef CONFIG_DRM_TEGRA_STAGING
430 static struct tegra_drm_context *tegra_drm_get_context(__u64 context)
432 return (struct tegra_drm_context *)(uintptr_t)context;
435 static bool tegra_drm_file_owns_context(struct tegra_drm_file *file,
436 struct tegra_drm_context *context)
438 struct tegra_drm_context *ctx;
440 list_for_each_entry(ctx, &file->contexts, list)
447 static int tegra_gem_create(struct drm_device *drm, void *data,
448 struct drm_file *file)
450 struct drm_tegra_gem_create *args = data;
453 bo = tegra_bo_create_with_handle(file, drm, args->size, args->flags,
461 static int tegra_gem_mmap(struct drm_device *drm, void *data,
462 struct drm_file *file)
464 struct drm_tegra_gem_mmap *args = data;
465 struct drm_gem_object *gem;
468 gem = drm_gem_object_lookup(drm, file, args->handle);
472 bo = to_tegra_bo(gem);
474 args->offset = drm_vma_node_offset_addr(&bo->gem.vma_node);
476 drm_gem_object_unreference(gem);
481 static int tegra_syncpt_read(struct drm_device *drm, void *data,
482 struct drm_file *file)
484 struct host1x *host = dev_get_drvdata(drm->dev->parent);
485 struct drm_tegra_syncpt_read *args = data;
486 struct host1x_syncpt *sp;
488 sp = host1x_syncpt_get(host, args->id);
492 args->value = host1x_syncpt_read_min(sp);
496 static int tegra_syncpt_incr(struct drm_device *drm, void *data,
497 struct drm_file *file)
499 struct host1x *host1x = dev_get_drvdata(drm->dev->parent);
500 struct drm_tegra_syncpt_incr *args = data;
501 struct host1x_syncpt *sp;
503 sp = host1x_syncpt_get(host1x, args->id);
507 return host1x_syncpt_incr(sp);
510 static int tegra_syncpt_wait(struct drm_device *drm, void *data,
511 struct drm_file *file)
513 struct host1x *host1x = dev_get_drvdata(drm->dev->parent);
514 struct drm_tegra_syncpt_wait *args = data;
515 struct host1x_syncpt *sp;
517 sp = host1x_syncpt_get(host1x, args->id);
521 return host1x_syncpt_wait(sp, args->thresh, args->timeout,
525 static int tegra_open_channel(struct drm_device *drm, void *data,
526 struct drm_file *file)
528 struct tegra_drm_file *fpriv = file->driver_priv;
529 struct tegra_drm *tegra = drm->dev_private;
530 struct drm_tegra_open_channel *args = data;
531 struct tegra_drm_context *context;
532 struct tegra_drm_client *client;
535 context = kzalloc(sizeof(*context), GFP_KERNEL);
539 list_for_each_entry(client, &tegra->clients, list)
540 if (client->base.class == args->client) {
541 err = client->ops->open_channel(client, context);
545 list_add(&context->list, &fpriv->contexts);
546 args->context = (uintptr_t)context;
547 context->client = client;
555 static int tegra_close_channel(struct drm_device *drm, void *data,
556 struct drm_file *file)
558 struct tegra_drm_file *fpriv = file->driver_priv;
559 struct drm_tegra_close_channel *args = data;
560 struct tegra_drm_context *context;
562 context = tegra_drm_get_context(args->context);
564 if (!tegra_drm_file_owns_context(fpriv, context))
567 list_del(&context->list);
568 tegra_drm_context_free(context);
573 static int tegra_get_syncpt(struct drm_device *drm, void *data,
574 struct drm_file *file)
576 struct tegra_drm_file *fpriv = file->driver_priv;
577 struct drm_tegra_get_syncpt *args = data;
578 struct tegra_drm_context *context;
579 struct host1x_syncpt *syncpt;
581 context = tegra_drm_get_context(args->context);
583 if (!tegra_drm_file_owns_context(fpriv, context))
586 if (args->index >= context->client->base.num_syncpts)
589 syncpt = context->client->base.syncpts[args->index];
590 args->id = host1x_syncpt_id(syncpt);
595 static int tegra_submit(struct drm_device *drm, void *data,
596 struct drm_file *file)
598 struct tegra_drm_file *fpriv = file->driver_priv;
599 struct drm_tegra_submit *args = data;
600 struct tegra_drm_context *context;
602 context = tegra_drm_get_context(args->context);
604 if (!tegra_drm_file_owns_context(fpriv, context))
607 return context->client->ops->submit(context, args, drm, file);
610 static int tegra_get_syncpt_base(struct drm_device *drm, void *data,
611 struct drm_file *file)
613 struct tegra_drm_file *fpriv = file->driver_priv;
614 struct drm_tegra_get_syncpt_base *args = data;
615 struct tegra_drm_context *context;
616 struct host1x_syncpt_base *base;
617 struct host1x_syncpt *syncpt;
619 context = tegra_drm_get_context(args->context);
621 if (!tegra_drm_file_owns_context(fpriv, context))
624 if (args->syncpt >= context->client->base.num_syncpts)
627 syncpt = context->client->base.syncpts[args->syncpt];
629 base = host1x_syncpt_get_base(syncpt);
633 args->id = host1x_syncpt_base_id(base);
638 static int tegra_gem_set_tiling(struct drm_device *drm, void *data,
639 struct drm_file *file)
641 struct drm_tegra_gem_set_tiling *args = data;
642 enum tegra_bo_tiling_mode mode;
643 struct drm_gem_object *gem;
644 unsigned long value = 0;
647 switch (args->mode) {
648 case DRM_TEGRA_GEM_TILING_MODE_PITCH:
649 mode = TEGRA_BO_TILING_MODE_PITCH;
651 if (args->value != 0)
656 case DRM_TEGRA_GEM_TILING_MODE_TILED:
657 mode = TEGRA_BO_TILING_MODE_TILED;
659 if (args->value != 0)
664 case DRM_TEGRA_GEM_TILING_MODE_BLOCK:
665 mode = TEGRA_BO_TILING_MODE_BLOCK;
677 gem = drm_gem_object_lookup(drm, file, args->handle);
681 bo = to_tegra_bo(gem);
683 bo->tiling.mode = mode;
684 bo->tiling.value = value;
686 drm_gem_object_unreference(gem);
691 static int tegra_gem_get_tiling(struct drm_device *drm, void *data,
692 struct drm_file *file)
694 struct drm_tegra_gem_get_tiling *args = data;
695 struct drm_gem_object *gem;
699 gem = drm_gem_object_lookup(drm, file, args->handle);
703 bo = to_tegra_bo(gem);
705 switch (bo->tiling.mode) {
706 case TEGRA_BO_TILING_MODE_PITCH:
707 args->mode = DRM_TEGRA_GEM_TILING_MODE_PITCH;
711 case TEGRA_BO_TILING_MODE_TILED:
712 args->mode = DRM_TEGRA_GEM_TILING_MODE_TILED;
716 case TEGRA_BO_TILING_MODE_BLOCK:
717 args->mode = DRM_TEGRA_GEM_TILING_MODE_BLOCK;
718 args->value = bo->tiling.value;
726 drm_gem_object_unreference(gem);
731 static int tegra_gem_set_flags(struct drm_device *drm, void *data,
732 struct drm_file *file)
734 struct drm_tegra_gem_set_flags *args = data;
735 struct drm_gem_object *gem;
738 if (args->flags & ~DRM_TEGRA_GEM_FLAGS)
741 gem = drm_gem_object_lookup(drm, file, args->handle);
745 bo = to_tegra_bo(gem);
748 if (args->flags & DRM_TEGRA_GEM_BOTTOM_UP)
749 bo->flags |= TEGRA_BO_BOTTOM_UP;
751 drm_gem_object_unreference(gem);
756 static int tegra_gem_get_flags(struct drm_device *drm, void *data,
757 struct drm_file *file)
759 struct drm_tegra_gem_get_flags *args = data;
760 struct drm_gem_object *gem;
763 gem = drm_gem_object_lookup(drm, file, args->handle);
767 bo = to_tegra_bo(gem);
770 if (bo->flags & TEGRA_BO_BOTTOM_UP)
771 args->flags |= DRM_TEGRA_GEM_BOTTOM_UP;
773 drm_gem_object_unreference(gem);
779 static const struct drm_ioctl_desc tegra_drm_ioctls[] = {
780 #ifdef CONFIG_DRM_TEGRA_STAGING
781 DRM_IOCTL_DEF_DRV(TEGRA_GEM_CREATE, tegra_gem_create, DRM_UNLOCKED),
782 DRM_IOCTL_DEF_DRV(TEGRA_GEM_MMAP, tegra_gem_mmap, DRM_UNLOCKED),
783 DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_READ, tegra_syncpt_read, DRM_UNLOCKED),
784 DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_INCR, tegra_syncpt_incr, DRM_UNLOCKED),
785 DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_WAIT, tegra_syncpt_wait, DRM_UNLOCKED),
786 DRM_IOCTL_DEF_DRV(TEGRA_OPEN_CHANNEL, tegra_open_channel, DRM_UNLOCKED),
787 DRM_IOCTL_DEF_DRV(TEGRA_CLOSE_CHANNEL, tegra_close_channel, DRM_UNLOCKED),
788 DRM_IOCTL_DEF_DRV(TEGRA_GET_SYNCPT, tegra_get_syncpt, DRM_UNLOCKED),
789 DRM_IOCTL_DEF_DRV(TEGRA_SUBMIT, tegra_submit, DRM_UNLOCKED),
790 DRM_IOCTL_DEF_DRV(TEGRA_GET_SYNCPT_BASE, tegra_get_syncpt_base, DRM_UNLOCKED),
791 DRM_IOCTL_DEF_DRV(TEGRA_GEM_SET_TILING, tegra_gem_set_tiling, DRM_UNLOCKED),
792 DRM_IOCTL_DEF_DRV(TEGRA_GEM_GET_TILING, tegra_gem_get_tiling, DRM_UNLOCKED),
793 DRM_IOCTL_DEF_DRV(TEGRA_GEM_SET_FLAGS, tegra_gem_set_flags, DRM_UNLOCKED),
794 DRM_IOCTL_DEF_DRV(TEGRA_GEM_GET_FLAGS, tegra_gem_get_flags, DRM_UNLOCKED),
798 static const struct file_operations tegra_drm_fops = {
799 .owner = THIS_MODULE,
801 .release = drm_release,
802 .unlocked_ioctl = drm_ioctl,
803 .mmap = tegra_drm_mmap,
807 .compat_ioctl = drm_compat_ioctl,
809 .llseek = noop_llseek,
812 static struct drm_crtc *tegra_crtc_from_pipe(struct drm_device *drm,
815 struct drm_crtc *crtc;
817 list_for_each_entry(crtc, &drm->mode_config.crtc_list, head) {
818 if (pipe == drm_crtc_index(crtc))
825 static u32 tegra_drm_get_vblank_counter(struct drm_device *drm, int pipe)
827 struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe);
828 struct tegra_dc *dc = to_tegra_dc(crtc);
833 return tegra_dc_get_vblank_counter(dc);
836 static int tegra_drm_enable_vblank(struct drm_device *drm, int pipe)
838 struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe);
839 struct tegra_dc *dc = to_tegra_dc(crtc);
844 tegra_dc_enable_vblank(dc);
849 static void tegra_drm_disable_vblank(struct drm_device *drm, int pipe)
851 struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe);
852 struct tegra_dc *dc = to_tegra_dc(crtc);
855 tegra_dc_disable_vblank(dc);
858 static void tegra_drm_preclose(struct drm_device *drm, struct drm_file *file)
860 struct tegra_drm_file *fpriv = file->driver_priv;
861 struct tegra_drm_context *context, *tmp;
862 struct drm_crtc *crtc;
864 list_for_each_entry(crtc, &drm->mode_config.crtc_list, head)
865 tegra_dc_cancel_page_flip(crtc, file);
867 list_for_each_entry_safe(context, tmp, &fpriv->contexts, list)
868 tegra_drm_context_free(context);
873 #ifdef CONFIG_DEBUG_FS
874 static int tegra_debugfs_framebuffers(struct seq_file *s, void *data)
876 struct drm_info_node *node = (struct drm_info_node *)s->private;
877 struct drm_device *drm = node->minor->dev;
878 struct drm_framebuffer *fb;
880 mutex_lock(&drm->mode_config.fb_lock);
882 list_for_each_entry(fb, &drm->mode_config.fb_list, head) {
883 seq_printf(s, "%3d: user size: %d x %d, depth %d, %d bpp, refcount %d\n",
884 fb->base.id, fb->width, fb->height, fb->depth,
886 atomic_read(&fb->refcount.refcount));
889 mutex_unlock(&drm->mode_config.fb_lock);
894 static int tegra_debugfs_iova(struct seq_file *s, void *data)
896 struct drm_info_node *node = (struct drm_info_node *)s->private;
897 struct drm_device *drm = node->minor->dev;
898 struct tegra_drm *tegra = drm->dev_private;
900 return drm_mm_dump_table(s, &tegra->mm);
903 static struct drm_info_list tegra_debugfs_list[] = {
904 { "framebuffers", tegra_debugfs_framebuffers, 0 },
905 { "iova", tegra_debugfs_iova, 0 },
908 static int tegra_debugfs_init(struct drm_minor *minor)
910 return drm_debugfs_create_files(tegra_debugfs_list,
911 ARRAY_SIZE(tegra_debugfs_list),
912 minor->debugfs_root, minor);
915 static void tegra_debugfs_cleanup(struct drm_minor *minor)
917 drm_debugfs_remove_files(tegra_debugfs_list,
918 ARRAY_SIZE(tegra_debugfs_list), minor);
922 static struct drm_driver tegra_drm_driver = {
923 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
924 .load = tegra_drm_load,
925 .unload = tegra_drm_unload,
926 .open = tegra_drm_open,
927 .preclose = tegra_drm_preclose,
928 .lastclose = tegra_drm_lastclose,
930 .get_vblank_counter = tegra_drm_get_vblank_counter,
931 .enable_vblank = tegra_drm_enable_vblank,
932 .disable_vblank = tegra_drm_disable_vblank,
934 #if defined(CONFIG_DEBUG_FS)
935 .debugfs_init = tegra_debugfs_init,
936 .debugfs_cleanup = tegra_debugfs_cleanup,
939 .gem_free_object = tegra_bo_free_object,
940 .gem_vm_ops = &tegra_bo_vm_ops,
942 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
943 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
944 .gem_prime_export = tegra_gem_prime_export,
945 .gem_prime_import = tegra_gem_prime_import,
947 .dumb_create = tegra_bo_dumb_create,
948 .dumb_map_offset = tegra_bo_dumb_map_offset,
949 .dumb_destroy = drm_gem_dumb_destroy,
951 .ioctls = tegra_drm_ioctls,
952 .num_ioctls = ARRAY_SIZE(tegra_drm_ioctls),
953 .fops = &tegra_drm_fops,
958 .major = DRIVER_MAJOR,
959 .minor = DRIVER_MINOR,
960 .patchlevel = DRIVER_PATCHLEVEL,
963 int tegra_drm_register_client(struct tegra_drm *tegra,
964 struct tegra_drm_client *client)
966 mutex_lock(&tegra->clients_lock);
967 list_add_tail(&client->list, &tegra->clients);
968 mutex_unlock(&tegra->clients_lock);
973 int tegra_drm_unregister_client(struct tegra_drm *tegra,
974 struct tegra_drm_client *client)
976 mutex_lock(&tegra->clients_lock);
977 list_del_init(&client->list);
978 mutex_unlock(&tegra->clients_lock);
983 static int host1x_drm_probe(struct host1x_device *dev)
985 struct drm_driver *driver = &tegra_drm_driver;
986 struct drm_device *drm;
989 drm = drm_dev_alloc(driver, &dev->dev);
993 drm_dev_set_unique(drm, dev_name(&dev->dev));
994 dev_set_drvdata(&dev->dev, drm);
996 err = drm_dev_register(drm, 0);
1000 DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", driver->name,
1001 driver->major, driver->minor, driver->patchlevel,
1002 driver->date, drm->primary->index);
1011 static int host1x_drm_remove(struct host1x_device *dev)
1013 struct drm_device *drm = dev_get_drvdata(&dev->dev);
1015 drm_dev_unregister(drm);
1021 #ifdef CONFIG_PM_SLEEP
1022 static int host1x_drm_suspend(struct device *dev)
1024 struct drm_device *drm = dev_get_drvdata(dev);
1026 drm_kms_helper_poll_disable(drm);
1031 static int host1x_drm_resume(struct device *dev)
1033 struct drm_device *drm = dev_get_drvdata(dev);
1035 drm_kms_helper_poll_enable(drm);
1041 static SIMPLE_DEV_PM_OPS(host1x_drm_pm_ops, host1x_drm_suspend,
1044 static const struct of_device_id host1x_drm_subdevs[] = {
1045 { .compatible = "nvidia,tegra20-dc", },
1046 { .compatible = "nvidia,tegra20-hdmi", },
1047 { .compatible = "nvidia,tegra20-gr2d", },
1048 { .compatible = "nvidia,tegra20-gr3d", },
1049 { .compatible = "nvidia,tegra30-dc", },
1050 { .compatible = "nvidia,tegra30-hdmi", },
1051 { .compatible = "nvidia,tegra30-gr2d", },
1052 { .compatible = "nvidia,tegra30-gr3d", },
1053 { .compatible = "nvidia,tegra114-dsi", },
1054 { .compatible = "nvidia,tegra114-hdmi", },
1055 { .compatible = "nvidia,tegra114-gr3d", },
1056 { .compatible = "nvidia,tegra124-dc", },
1057 { .compatible = "nvidia,tegra124-sor", },
1058 { .compatible = "nvidia,tegra124-hdmi", },
1059 { .compatible = "nvidia,tegra124-dsi", },
1060 { .compatible = "nvidia,tegra132-dsi", },
1061 { .compatible = "nvidia,tegra210-dc", },
1062 { .compatible = "nvidia,tegra210-dsi", },
1063 { .compatible = "nvidia,tegra210-sor", },
1064 { .compatible = "nvidia,tegra210-sor1", },
1068 static struct host1x_driver host1x_drm_driver = {
1071 .pm = &host1x_drm_pm_ops,
1073 .probe = host1x_drm_probe,
1074 .remove = host1x_drm_remove,
1075 .subdevs = host1x_drm_subdevs,
1078 static int __init host1x_drm_init(void)
1082 err = host1x_driver_register(&host1x_drm_driver);
1086 err = platform_driver_register(&tegra_dc_driver);
1088 goto unregister_host1x;
1090 err = platform_driver_register(&tegra_dsi_driver);
1094 err = platform_driver_register(&tegra_sor_driver);
1096 goto unregister_dsi;
1098 err = platform_driver_register(&tegra_hdmi_driver);
1100 goto unregister_sor;
1102 err = platform_driver_register(&tegra_dpaux_driver);
1104 goto unregister_hdmi;
1106 err = platform_driver_register(&tegra_gr2d_driver);
1108 goto unregister_dpaux;
1110 err = platform_driver_register(&tegra_gr3d_driver);
1112 goto unregister_gr2d;
1117 platform_driver_unregister(&tegra_gr2d_driver);
1119 platform_driver_unregister(&tegra_dpaux_driver);
1121 platform_driver_unregister(&tegra_hdmi_driver);
1123 platform_driver_unregister(&tegra_sor_driver);
1125 platform_driver_unregister(&tegra_dsi_driver);
1127 platform_driver_unregister(&tegra_dc_driver);
1129 host1x_driver_unregister(&host1x_drm_driver);
1132 module_init(host1x_drm_init);
1134 static void __exit host1x_drm_exit(void)
1136 platform_driver_unregister(&tegra_gr3d_driver);
1137 platform_driver_unregister(&tegra_gr2d_driver);
1138 platform_driver_unregister(&tegra_dpaux_driver);
1139 platform_driver_unregister(&tegra_hdmi_driver);
1140 platform_driver_unregister(&tegra_sor_driver);
1141 platform_driver_unregister(&tegra_dsi_driver);
1142 platform_driver_unregister(&tegra_dc_driver);
1143 host1x_driver_unregister(&host1x_drm_driver);
1145 module_exit(host1x_drm_exit);
1147 MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
1148 MODULE_DESCRIPTION("NVIDIA Tegra DRM driver");
1149 MODULE_LICENSE("GPL v2");