| /* |
| * Copyright (C) 2012 Avionic Design GmbH |
| * Copyright (C) 2012-2013 NVIDIA CORPORATION. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/host1x.h> |
| |
| #include "drm.h" |
| #include "gem.h" |
| |
| #define DRIVER_NAME "tegra" |
| #define DRIVER_DESC "NVIDIA Tegra graphics" |
| #define DRIVER_DATE "20120330" |
| #define DRIVER_MAJOR 0 |
| #define DRIVER_MINOR 0 |
| #define DRIVER_PATCHLEVEL 0 |
| |
| struct tegra_drm_file { |
| struct list_head contexts; |
| }; |
| |
| static int tegra_drm_load(struct drm_device *drm, unsigned long flags) |
| { |
| struct host1x_device *device = to_host1x_device(drm->dev); |
| struct tegra_drm *tegra; |
| int err; |
| |
| tegra = kzalloc(sizeof(*tegra), GFP_KERNEL); |
| if (!tegra) |
| return -ENOMEM; |
| |
| dev_set_drvdata(drm->dev, tegra); |
| mutex_init(&tegra->clients_lock); |
| INIT_LIST_HEAD(&tegra->clients); |
| drm->dev_private = tegra; |
| tegra->drm = drm; |
| |
| drm_mode_config_init(drm); |
| |
| err = host1x_device_init(device); |
| if (err < 0) |
| return err; |
| |
| /* |
| * We don't use the drm_irq_install() helpers provided by the DRM |
| * core, so we need to set this manually in order to allow the |
| * DRM_IOCTL_WAIT_VBLANK to operate correctly. |
| */ |
| drm->irq_enabled = true; |
| |
| err = drm_vblank_init(drm, drm->mode_config.num_crtc); |
| if (err < 0) |
| return err; |
| |
| err = tegra_drm_fb_init(drm); |
| if (err < 0) |
| return err; |
| |
| drm_kms_helper_poll_init(drm); |
| |
| return 0; |
| } |
| |
| static int tegra_drm_unload(struct drm_device *drm) |
| { |
| struct host1x_device *device = to_host1x_device(drm->dev); |
| int err; |
| |
| drm_kms_helper_poll_fini(drm); |
| tegra_drm_fb_exit(drm); |
| drm_vblank_cleanup(drm); |
| drm_mode_config_cleanup(drm); |
| |
| err = host1x_device_exit(device); |
| if (err < 0) |
| return err; |
| |
| return 0; |
| } |
| |
| static int tegra_drm_open(struct drm_device *drm, struct drm_file *filp) |
| { |
| struct tegra_drm_file *fpriv; |
| |
| fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL); |
| if (!fpriv) |
| return -ENOMEM; |
| |
| INIT_LIST_HEAD(&fpriv->contexts); |
| filp->driver_priv = fpriv; |
| |
| return 0; |
| } |
| |
| static void tegra_drm_context_free(struct tegra_drm_context *context) |
| { |
| context->client->ops->close_channel(context); |
| kfree(context); |
| } |
| |
| static void tegra_drm_lastclose(struct drm_device *drm) |
| { |
| struct tegra_drm *tegra = drm->dev_private; |
| |
| tegra_fbdev_restore_mode(tegra->fbdev); |
| } |
| |
| static struct host1x_bo * |
| host1x_bo_lookup(struct drm_device *drm, struct drm_file *file, u32 handle) |
| { |
| struct drm_gem_object *gem; |
| struct tegra_bo *bo; |
| |
| gem = drm_gem_object_lookup(drm, file, handle); |
| if (!gem) |
| return NULL; |
| |
| mutex_lock(&drm->struct_mutex); |
| drm_gem_object_unreference(gem); |
| mutex_unlock(&drm->struct_mutex); |
| |
| bo = to_tegra_bo(gem); |
| return &bo->base; |
| } |
| |
| int tegra_drm_submit(struct tegra_drm_context *context, |
| struct drm_tegra_submit *args, struct drm_device *drm, |
| struct drm_file *file) |
| { |
| unsigned int num_cmdbufs = args->num_cmdbufs; |
| unsigned int num_relocs = args->num_relocs; |
| unsigned int num_waitchks = args->num_waitchks; |
| struct drm_tegra_cmdbuf __user *cmdbufs = |
| (void __user *)(uintptr_t)args->cmdbufs; |
| struct drm_tegra_reloc __user *relocs = |
| (void __user *)(uintptr_t)args->relocs; |
| struct drm_tegra_waitchk __user *waitchks = |
| (void __user *)(uintptr_t)args->waitchks; |
| struct drm_tegra_syncpt syncpt; |
| struct host1x_job *job; |
| int err; |
| |
| /* We don't yet support other than one syncpt_incr struct per submit */ |
| if (args->num_syncpts != 1) |
| return -EINVAL; |
| |
| job = host1x_job_alloc(context->channel, args->num_cmdbufs, |
| args->num_relocs, args->num_waitchks); |
| if (!job) |
| return -ENOMEM; |
| |
| job->num_relocs = args->num_relocs; |
| job->num_waitchk = args->num_waitchks; |
| job->client = (u32)args->context; |
| job->class = context->client->base.class; |
| job->serialize = true; |
| |
| while (num_cmdbufs) { |
| struct drm_tegra_cmdbuf cmdbuf; |
| struct host1x_bo *bo; |
| |
| if (copy_from_user(&cmdbuf, cmdbufs, sizeof(cmdbuf))) { |
| err = -EFAULT; |
| goto fail; |
| } |
| |
| bo = host1x_bo_lookup(drm, file, cmdbuf.handle); |
| if (!bo) { |
| err = -ENOENT; |
| goto fail; |
| } |
| |
| host1x_job_add_gather(job, bo, cmdbuf.words, cmdbuf.offset); |
| num_cmdbufs--; |
| cmdbufs++; |
| } |
| |
| if (copy_from_user(job->relocarray, relocs, |
| sizeof(*relocs) * num_relocs)) { |
| err = -EFAULT; |
| goto fail; |
| } |
| |
| while (num_relocs--) { |
| struct host1x_reloc *reloc = &job->relocarray[num_relocs]; |
| struct host1x_bo *cmdbuf, *target; |
| |
| cmdbuf = host1x_bo_lookup(drm, file, (u32)reloc->cmdbuf); |
| target = host1x_bo_lookup(drm, file, (u32)reloc->target); |
| |
| reloc->cmdbuf = cmdbuf; |
| reloc->target = target; |
| |
| if (!reloc->target || !reloc->cmdbuf) { |
| err = -ENOENT; |
| goto fail; |
| } |
| } |
| |
| if (copy_from_user(job->waitchk, waitchks, |
| sizeof(*waitchks) * num_waitchks)) { |
| err = -EFAULT; |
| goto fail; |
| } |
| |
| if (copy_from_user(&syncpt, (void __user *)(uintptr_t)args->syncpts, |
| sizeof(syncpt))) { |
| err = -EFAULT; |
| goto fail; |
| } |
| |
| job->is_addr_reg = context->client->ops->is_addr_reg; |
| job->syncpt_incrs = syncpt.incrs; |
| job->syncpt_id = syncpt.id; |
| job->timeout = 10000; |
| |
| if (args->timeout && args->timeout < 10000) |
| job->timeout = args->timeout; |
| |
| err = host1x_job_pin(job, context->client->base.dev); |
| if (err) |
| goto fail; |
| |
| err = host1x_job_submit(job); |
| if (err) |
| goto fail_submit; |
| |
| args->fence = job->syncpt_end; |
| |
| host1x_job_put(job); |
| return 0; |
| |
| fail_submit: |
| host1x_job_unpin(job); |
| fail: |
| host1x_job_put(job); |
| return err; |
| } |
| |
| |
| #ifdef CONFIG_DRM_TEGRA_STAGING |
| static struct tegra_drm_context *tegra_drm_get_context(__u64 context) |
| { |
| return (struct tegra_drm_context *)(uintptr_t)context; |
| } |
| |
| static bool tegra_drm_file_owns_context(struct tegra_drm_file *file, |
| struct tegra_drm_context *context) |
| { |
| struct tegra_drm_context *ctx; |
| |
| list_for_each_entry(ctx, &file->contexts, list) |
| if (ctx == context) |
| return true; |
| |
| return false; |
| } |
| |
| static int tegra_gem_create(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct drm_tegra_gem_create *args = data; |
| struct tegra_bo *bo; |
| |
| bo = tegra_bo_create_with_handle(file, drm, args->size, args->flags, |
| &args->handle); |
| if (IS_ERR(bo)) |
| return PTR_ERR(bo); |
| |
| return 0; |
| } |
| |
| static int tegra_gem_mmap(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct drm_tegra_gem_mmap *args = data; |
| struct drm_gem_object *gem; |
| struct tegra_bo *bo; |
| |
| gem = drm_gem_object_lookup(drm, file, args->handle); |
| if (!gem) |
| return -EINVAL; |
| |
| bo = to_tegra_bo(gem); |
| |
| args->offset = drm_vma_node_offset_addr(&bo->gem.vma_node); |
| |
| drm_gem_object_unreference(gem); |
| |
| return 0; |
| } |
| |
| static int tegra_syncpt_read(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct host1x *host = dev_get_drvdata(drm->dev->parent); |
| struct drm_tegra_syncpt_read *args = data; |
| struct host1x_syncpt *sp; |
| |
| sp = host1x_syncpt_get(host, args->id); |
| if (!sp) |
| return -EINVAL; |
| |
| args->value = host1x_syncpt_read_min(sp); |
| return 0; |
| } |
| |
| static int tegra_syncpt_incr(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct host1x *host1x = dev_get_drvdata(drm->dev->parent); |
| struct drm_tegra_syncpt_incr *args = data; |
| struct host1x_syncpt *sp; |
| |
| sp = host1x_syncpt_get(host1x, args->id); |
| if (!sp) |
| return -EINVAL; |
| |
| return host1x_syncpt_incr(sp); |
| } |
| |
| static int tegra_syncpt_wait(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct host1x *host1x = dev_get_drvdata(drm->dev->parent); |
| struct drm_tegra_syncpt_wait *args = data; |
| struct host1x_syncpt *sp; |
| |
| sp = host1x_syncpt_get(host1x, args->id); |
| if (!sp) |
| return -EINVAL; |
| |
| return host1x_syncpt_wait(sp, args->thresh, args->timeout, |
| &args->value); |
| } |
| |
| static int tegra_open_channel(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct tegra_drm_file *fpriv = file->driver_priv; |
| struct tegra_drm *tegra = drm->dev_private; |
| struct drm_tegra_open_channel *args = data; |
| struct tegra_drm_context *context; |
| struct tegra_drm_client *client; |
| int err = -ENODEV; |
| |
| context = kzalloc(sizeof(*context), GFP_KERNEL); |
| if (!context) |
| return -ENOMEM; |
| |
| list_for_each_entry(client, &tegra->clients, list) |
| if (client->base.class == args->client) { |
| err = client->ops->open_channel(client, context); |
| if (err) |
| break; |
| |
| list_add(&context->list, &fpriv->contexts); |
| args->context = (uintptr_t)context; |
| context->client = client; |
| return 0; |
| } |
| |
| kfree(context); |
| return err; |
| } |
| |
| static int tegra_close_channel(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct tegra_drm_file *fpriv = file->driver_priv; |
| struct drm_tegra_close_channel *args = data; |
| struct tegra_drm_context *context; |
| |
| context = tegra_drm_get_context(args->context); |
| |
| if (!tegra_drm_file_owns_context(fpriv, context)) |
| return -EINVAL; |
| |
| list_del(&context->list); |
| tegra_drm_context_free(context); |
| |
| return 0; |
| } |
| |
| static int tegra_get_syncpt(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct tegra_drm_file *fpriv = file->driver_priv; |
| struct drm_tegra_get_syncpt *args = data; |
| struct tegra_drm_context *context; |
| struct host1x_syncpt *syncpt; |
| |
| context = tegra_drm_get_context(args->context); |
| |
| if (!tegra_drm_file_owns_context(fpriv, context)) |
| return -ENODEV; |
| |
| if (args->index >= context->client->base.num_syncpts) |
| return -EINVAL; |
| |
| syncpt = context->client->base.syncpts[args->index]; |
| args->id = host1x_syncpt_id(syncpt); |
| |
| return 0; |
| } |
| |
| static int tegra_submit(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct tegra_drm_file *fpriv = file->driver_priv; |
| struct drm_tegra_submit *args = data; |
| struct tegra_drm_context *context; |
| |
| context = tegra_drm_get_context(args->context); |
| |
| if (!tegra_drm_file_owns_context(fpriv, context)) |
| return -ENODEV; |
| |
| return context->client->ops->submit(context, args, drm, file); |
| } |
| |
| static int tegra_get_syncpt_base(struct drm_device *drm, void *data, |
| struct drm_file *file) |
| { |
| struct tegra_drm_file *fpriv = file->driver_priv; |
| struct drm_tegra_get_syncpt_base *args = data; |
| struct tegra_drm_context *context; |
| struct host1x_syncpt_base *base; |
| struct host1x_syncpt *syncpt; |
| |
| context = tegra_drm_get_context(args->context); |
| |
| if (!tegra_drm_file_owns_context(fpriv, context)) |
| return -ENODEV; |
| |
| if (args->syncpt >= context->client->base.num_syncpts) |
| return -EINVAL; |
| |
| syncpt = context->client->base.syncpts[args->syncpt]; |
| |
| base = host1x_syncpt_get_base(syncpt); |
| if (!base) |
| return -ENXIO; |
| |
| args->id = host1x_syncpt_base_id(base); |
| |
| return 0; |
| } |
| #endif |
| |
| static const struct drm_ioctl_desc tegra_drm_ioctls[] = { |
| #ifdef CONFIG_DRM_TEGRA_STAGING |
| DRM_IOCTL_DEF_DRV(TEGRA_GEM_CREATE, tegra_gem_create, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(TEGRA_GEM_MMAP, tegra_gem_mmap, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_READ, tegra_syncpt_read, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_INCR, tegra_syncpt_incr, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(TEGRA_SYNCPT_WAIT, tegra_syncpt_wait, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(TEGRA_OPEN_CHANNEL, tegra_open_channel, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(TEGRA_CLOSE_CHANNEL, tegra_close_channel, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(TEGRA_GET_SYNCPT, tegra_get_syncpt, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(TEGRA_SUBMIT, tegra_submit, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(TEGRA_GET_SYNCPT_BASE, tegra_get_syncpt_base, DRM_UNLOCKED), |
| #endif |
| }; |
| |
| static const struct file_operations tegra_drm_fops = { |
| .owner = THIS_MODULE, |
| .open = drm_open, |
| .release = drm_release, |
| .unlocked_ioctl = drm_ioctl, |
| .mmap = tegra_drm_mmap, |
| .poll = drm_poll, |
| .read = drm_read, |
| #ifdef CONFIG_COMPAT |
| .compat_ioctl = drm_compat_ioctl, |
| #endif |
| .llseek = noop_llseek, |
| }; |
| |
| static struct drm_crtc *tegra_crtc_from_pipe(struct drm_device *drm, int pipe) |
| { |
| struct drm_crtc *crtc; |
| |
| list_for_each_entry(crtc, &drm->mode_config.crtc_list, head) { |
| struct tegra_dc *dc = to_tegra_dc(crtc); |
| |
| if (dc->pipe == pipe) |
| return crtc; |
| } |
| |
| return NULL; |
| } |
| |
| static u32 tegra_drm_get_vblank_counter(struct drm_device *dev, int crtc) |
| { |
| /* TODO: implement real hardware counter using syncpoints */ |
| return drm_vblank_count(dev, crtc); |
| } |
| |
| static int tegra_drm_enable_vblank(struct drm_device *drm, int pipe) |
| { |
| struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe); |
| struct tegra_dc *dc = to_tegra_dc(crtc); |
| |
| if (!crtc) |
| return -ENODEV; |
| |
| tegra_dc_enable_vblank(dc); |
| |
| return 0; |
| } |
| |
| static void tegra_drm_disable_vblank(struct drm_device *drm, int pipe) |
| { |
| struct drm_crtc *crtc = tegra_crtc_from_pipe(drm, pipe); |
| struct tegra_dc *dc = to_tegra_dc(crtc); |
| |
| if (crtc) |
| tegra_dc_disable_vblank(dc); |
| } |
| |
| static void tegra_drm_preclose(struct drm_device *drm, struct drm_file *file) |
| { |
| struct tegra_drm_file *fpriv = file->driver_priv; |
| struct tegra_drm_context *context, *tmp; |
| struct drm_crtc *crtc; |
| |
| list_for_each_entry(crtc, &drm->mode_config.crtc_list, head) |
| tegra_dc_cancel_page_flip(crtc, file); |
| |
| list_for_each_entry_safe(context, tmp, &fpriv->contexts, list) |
| tegra_drm_context_free(context); |
| |
| kfree(fpriv); |
| } |
| |
| #ifdef CONFIG_DEBUG_FS |
| static int tegra_debugfs_framebuffers(struct seq_file *s, void *data) |
| { |
| struct drm_info_node *node = (struct drm_info_node *)s->private; |
| struct drm_device *drm = node->minor->dev; |
| struct drm_framebuffer *fb; |
| |
| mutex_lock(&drm->mode_config.fb_lock); |
| |
| list_for_each_entry(fb, &drm->mode_config.fb_list, head) { |
| seq_printf(s, "%3d: user size: %d x %d, depth %d, %d bpp, refcount %d\n", |
| fb->base.id, fb->width, fb->height, fb->depth, |
| fb->bits_per_pixel, |
| atomic_read(&fb->refcount.refcount)); |
| } |
| |
| mutex_unlock(&drm->mode_config.fb_lock); |
| |
| return 0; |
| } |
| |
| static struct drm_info_list tegra_debugfs_list[] = { |
| { "framebuffers", tegra_debugfs_framebuffers, 0 }, |
| }; |
| |
| static int tegra_debugfs_init(struct drm_minor *minor) |
| { |
| return drm_debugfs_create_files(tegra_debugfs_list, |
| ARRAY_SIZE(tegra_debugfs_list), |
| minor->debugfs_root, minor); |
| } |
| |
| static void tegra_debugfs_cleanup(struct drm_minor *minor) |
| { |
| drm_debugfs_remove_files(tegra_debugfs_list, |
| ARRAY_SIZE(tegra_debugfs_list), minor); |
| } |
| #endif |
| |
| static struct drm_driver tegra_drm_driver = { |
| .driver_features = DRIVER_MODESET | DRIVER_GEM, |
| .load = tegra_drm_load, |
| .unload = tegra_drm_unload, |
| .open = tegra_drm_open, |
| .preclose = tegra_drm_preclose, |
| .lastclose = tegra_drm_lastclose, |
| |
| .get_vblank_counter = tegra_drm_get_vblank_counter, |
| .enable_vblank = tegra_drm_enable_vblank, |
| .disable_vblank = tegra_drm_disable_vblank, |
| |
| #if defined(CONFIG_DEBUG_FS) |
| .debugfs_init = tegra_debugfs_init, |
| .debugfs_cleanup = tegra_debugfs_cleanup, |
| #endif |
| |
| .gem_free_object = tegra_bo_free_object, |
| .gem_vm_ops = &tegra_bo_vm_ops, |
| .dumb_create = tegra_bo_dumb_create, |
| .dumb_map_offset = tegra_bo_dumb_map_offset, |
| .dumb_destroy = drm_gem_dumb_destroy, |
| |
| .ioctls = tegra_drm_ioctls, |
| .num_ioctls = ARRAY_SIZE(tegra_drm_ioctls), |
| .fops = &tegra_drm_fops, |
| |
| .name = DRIVER_NAME, |
| .desc = DRIVER_DESC, |
| .date = DRIVER_DATE, |
| .major = DRIVER_MAJOR, |
| .minor = DRIVER_MINOR, |
| .patchlevel = DRIVER_PATCHLEVEL, |
| }; |
| |
| int tegra_drm_register_client(struct tegra_drm *tegra, |
| struct tegra_drm_client *client) |
| { |
| mutex_lock(&tegra->clients_lock); |
| list_add_tail(&client->list, &tegra->clients); |
| mutex_unlock(&tegra->clients_lock); |
| |
| return 0; |
| } |
| |
| int tegra_drm_unregister_client(struct tegra_drm *tegra, |
| struct tegra_drm_client *client) |
| { |
| mutex_lock(&tegra->clients_lock); |
| list_del_init(&client->list); |
| mutex_unlock(&tegra->clients_lock); |
| |
| return 0; |
| } |
| |
| static int host1x_drm_probe(struct host1x_device *device) |
| { |
| return drm_host1x_init(&tegra_drm_driver, device); |
| } |
| |
| static int host1x_drm_remove(struct host1x_device *device) |
| { |
| drm_host1x_exit(&tegra_drm_driver, device); |
| |
| return 0; |
| } |
| |
| static const struct of_device_id host1x_drm_subdevs[] = { |
| { .compatible = "nvidia,tegra20-dc", }, |
| { .compatible = "nvidia,tegra20-hdmi", }, |
| { .compatible = "nvidia,tegra20-gr2d", }, |
| { .compatible = "nvidia,tegra20-gr3d", }, |
| { .compatible = "nvidia,tegra30-dc", }, |
| { .compatible = "nvidia,tegra30-hdmi", }, |
| { .compatible = "nvidia,tegra30-gr2d", }, |
| { .compatible = "nvidia,tegra30-gr3d", }, |
| { .compatible = "nvidia,tegra114-dsi", }, |
| { .compatible = "nvidia,tegra114-hdmi", }, |
| { .compatible = "nvidia,tegra114-gr3d", }, |
| { /* sentinel */ } |
| }; |
| |
| static struct host1x_driver host1x_drm_driver = { |
| .name = "drm", |
| .probe = host1x_drm_probe, |
| .remove = host1x_drm_remove, |
| .subdevs = host1x_drm_subdevs, |
| }; |
| |
| static int __init host1x_drm_init(void) |
| { |
| int err; |
| |
| err = host1x_driver_register(&host1x_drm_driver); |
| if (err < 0) |
| return err; |
| |
| err = platform_driver_register(&tegra_dc_driver); |
| if (err < 0) |
| goto unregister_host1x; |
| |
| err = platform_driver_register(&tegra_dsi_driver); |
| if (err < 0) |
| goto unregister_dc; |
| |
| err = platform_driver_register(&tegra_hdmi_driver); |
| if (err < 0) |
| goto unregister_dsi; |
| |
| err = platform_driver_register(&tegra_gr2d_driver); |
| if (err < 0) |
| goto unregister_hdmi; |
| |
| err = platform_driver_register(&tegra_gr3d_driver); |
| if (err < 0) |
| goto unregister_gr2d; |
| |
| return 0; |
| |
| unregister_gr2d: |
| platform_driver_unregister(&tegra_gr2d_driver); |
| unregister_hdmi: |
| platform_driver_unregister(&tegra_hdmi_driver); |
| unregister_dsi: |
| platform_driver_unregister(&tegra_dsi_driver); |
| unregister_dc: |
| platform_driver_unregister(&tegra_dc_driver); |
| unregister_host1x: |
| host1x_driver_unregister(&host1x_drm_driver); |
| return err; |
| } |
| module_init(host1x_drm_init); |
| |
| static void __exit host1x_drm_exit(void) |
| { |
| platform_driver_unregister(&tegra_gr3d_driver); |
| platform_driver_unregister(&tegra_gr2d_driver); |
| platform_driver_unregister(&tegra_hdmi_driver); |
| platform_driver_unregister(&tegra_dsi_driver); |
| platform_driver_unregister(&tegra_dc_driver); |
| host1x_driver_unregister(&host1x_drm_driver); |
| } |
| module_exit(host1x_drm_exit); |
| |
| MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>"); |
| MODULE_DESCRIPTION("NVIDIA Tegra DRM driver"); |
| MODULE_LICENSE("GPL v2"); |