| /* |
| * Copyright (c) 2011 Samsung Electronics Co., Ltd. |
| * Authors: |
| * Inki Dae <inki.dae@samsung.com> |
| * Joonyoung Shim <jy0922.shim@samsung.com> |
| * Seung-Woo Kim <sw0312.kim@samsung.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 2 of the License, or (at your |
| * option) any later version. |
| */ |
| |
| #include <linux/pm_runtime.h> |
| #include <drm/drmP.h> |
| #include <drm/drm_crtc_helper.h> |
| |
| #include <linux/anon_inodes.h> |
| |
| #include <drm/exynos_drm.h> |
| |
| #include "exynos_drm_drv.h" |
| #include "exynos_drm_crtc.h" |
| #include "exynos_drm_encoder.h" |
| #include "exynos_drm_fbdev.h" |
| #include "exynos_drm_fb.h" |
| #include "exynos_drm_gem.h" |
| #include "exynos_drm_plane.h" |
| #include "exynos_drm_vidi.h" |
| #include "exynos_drm_dmabuf.h" |
| #include "exynos_drm_g2d.h" |
| #include "exynos_drm_ipp.h" |
| #include "exynos_drm_iommu.h" |
| |
| #define DRIVER_NAME "exynos" |
| #define DRIVER_DESC "Samsung SoC DRM" |
| #define DRIVER_DATE "20110530" |
| #define DRIVER_MAJOR 1 |
| #define DRIVER_MINOR 0 |
| |
| #define VBLANK_OFF_DELAY 50000 |
| |
| /* platform device pointer for eynos drm device. */ |
| static struct platform_device *exynos_drm_pdev; |
| |
| static int exynos_drm_load(struct drm_device *dev, unsigned long flags) |
| { |
| struct exynos_drm_private *private; |
| int ret; |
| int nr; |
| |
| private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL); |
| if (!private) |
| return -ENOMEM; |
| |
| INIT_LIST_HEAD(&private->pageflip_event_list); |
| dev_set_drvdata(dev->dev, dev); |
| dev->dev_private = (void *)private; |
| |
| /* |
| * create mapping to manage iommu table and set a pointer to iommu |
| * mapping structure to iommu_mapping of private data. |
| * also this iommu_mapping can be used to check if iommu is supported |
| * or not. |
| */ |
| ret = drm_create_iommu_mapping(dev); |
| if (ret < 0) { |
| DRM_ERROR("failed to create iommu mapping.\n"); |
| goto err_free_private; |
| } |
| |
| drm_mode_config_init(dev); |
| |
| exynos_drm_mode_config_init(dev); |
| |
| ret = exynos_drm_initialize_managers(dev); |
| if (ret) |
| goto err_mode_config_cleanup; |
| |
| for (nr = 0; nr < MAX_PLANE; nr++) { |
| struct drm_plane *plane; |
| unsigned long possible_crtcs = (1 << MAX_CRTC) - 1; |
| |
| plane = exynos_plane_init(dev, possible_crtcs, false); |
| if (!plane) |
| goto err_manager_cleanup; |
| } |
| |
| ret = exynos_drm_initialize_displays(dev); |
| if (ret) |
| goto err_manager_cleanup; |
| |
| /* init kms poll for handling hpd */ |
| drm_kms_helper_poll_init(dev); |
| |
| ret = drm_vblank_init(dev, MAX_CRTC); |
| if (ret) |
| goto err_display_cleanup; |
| |
| /* |
| * probe sub drivers such as display controller and hdmi driver, |
| * that were registered at probe() of platform driver |
| * to the sub driver and create encoder and connector for them. |
| */ |
| ret = exynos_drm_device_register(dev); |
| if (ret) |
| goto err_vblank; |
| |
| /* setup possible_clones. */ |
| exynos_drm_encoder_setup(dev); |
| |
| drm_vblank_offdelay = VBLANK_OFF_DELAY; |
| |
| platform_set_drvdata(dev->platformdev, dev); |
| |
| /* force connectors detection */ |
| drm_helper_hpd_irq_event(dev); |
| |
| return 0; |
| |
| err_vblank: |
| drm_vblank_cleanup(dev); |
| err_display_cleanup: |
| exynos_drm_remove_displays(dev); |
| err_manager_cleanup: |
| exynos_drm_remove_managers(dev); |
| err_mode_config_cleanup: |
| drm_mode_config_cleanup(dev); |
| drm_release_iommu_mapping(dev); |
| err_free_private: |
| kfree(private); |
| |
| return ret; |
| } |
| |
| static int exynos_drm_unload(struct drm_device *dev) |
| { |
| exynos_drm_fbdev_fini(dev); |
| exynos_drm_device_unregister(dev); |
| drm_vblank_cleanup(dev); |
| drm_kms_helper_poll_fini(dev); |
| exynos_drm_remove_displays(dev); |
| exynos_drm_remove_managers(dev); |
| drm_mode_config_cleanup(dev); |
| |
| drm_release_iommu_mapping(dev); |
| kfree(dev->dev_private); |
| |
| dev->dev_private = NULL; |
| |
| return 0; |
| } |
| |
| static const struct file_operations exynos_drm_gem_fops = { |
| .mmap = exynos_drm_gem_mmap_buffer, |
| }; |
| |
| static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state) |
| { |
| struct drm_connector *connector; |
| |
| drm_modeset_lock_all(dev); |
| list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| int old_dpms = connector->dpms; |
| |
| if (connector->funcs->dpms) |
| connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF); |
| |
| /* Set the old mode back to the connector for resume */ |
| connector->dpms = old_dpms; |
| } |
| drm_modeset_unlock_all(dev); |
| |
| return 0; |
| } |
| |
| static int exynos_drm_resume(struct drm_device *dev) |
| { |
| struct drm_connector *connector; |
| |
| drm_modeset_lock_all(dev); |
| list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| if (connector->funcs->dpms) |
| connector->funcs->dpms(connector, connector->dpms); |
| } |
| |
| drm_helper_resume_force_mode(dev); |
| drm_modeset_unlock_all(dev); |
| |
| return 0; |
| } |
| |
| static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) |
| { |
| struct drm_exynos_file_private *file_priv; |
| struct file *anon_filp; |
| int ret; |
| |
| file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); |
| if (!file_priv) |
| return -ENOMEM; |
| |
| file->driver_priv = file_priv; |
| |
| ret = exynos_drm_subdrv_open(dev, file); |
| if (ret) |
| goto err_file_priv_free; |
| |
| anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops, |
| NULL, 0); |
| if (IS_ERR(anon_filp)) { |
| ret = PTR_ERR(anon_filp); |
| goto err_subdrv_close; |
| } |
| |
| anon_filp->f_mode = FMODE_READ | FMODE_WRITE; |
| file_priv->anon_filp = anon_filp; |
| |
| return ret; |
| |
| err_subdrv_close: |
| exynos_drm_subdrv_close(dev, file); |
| |
| err_file_priv_free: |
| kfree(file_priv); |
| file->driver_priv = NULL; |
| return ret; |
| } |
| |
| static void exynos_drm_preclose(struct drm_device *dev, |
| struct drm_file *file) |
| { |
| exynos_drm_subdrv_close(dev, file); |
| } |
| |
| static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) |
| { |
| struct exynos_drm_private *private = dev->dev_private; |
| struct drm_exynos_file_private *file_priv; |
| struct drm_pending_vblank_event *v, *vt; |
| struct drm_pending_event *e, *et; |
| unsigned long flags; |
| |
| if (!file->driver_priv) |
| return; |
| |
| /* Release all events not unhandled by page flip handler. */ |
| spin_lock_irqsave(&dev->event_lock, flags); |
| list_for_each_entry_safe(v, vt, &private->pageflip_event_list, |
| base.link) { |
| if (v->base.file_priv == file) { |
| list_del(&v->base.link); |
| drm_vblank_put(dev, v->pipe); |
| v->base.destroy(&v->base); |
| } |
| } |
| |
| /* Release all events handled by page flip handler but not freed. */ |
| list_for_each_entry_safe(e, et, &file->event_list, link) { |
| list_del(&e->link); |
| e->destroy(e); |
| } |
| spin_unlock_irqrestore(&dev->event_lock, flags); |
| |
| file_priv = file->driver_priv; |
| if (file_priv->anon_filp) |
| fput(file_priv->anon_filp); |
| |
| kfree(file->driver_priv); |
| file->driver_priv = NULL; |
| } |
| |
| static void exynos_drm_lastclose(struct drm_device *dev) |
| { |
| exynos_drm_fbdev_restore_mode(dev); |
| } |
| |
| static const struct vm_operations_struct exynos_drm_gem_vm_ops = { |
| .fault = exynos_drm_gem_fault, |
| .open = drm_gem_vm_open, |
| .close = drm_gem_vm_close, |
| }; |
| |
| static const struct drm_ioctl_desc exynos_ioctls[] = { |
| DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl, |
| DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET, |
| exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED | |
| DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP, |
| exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, |
| exynos_drm_gem_get_ioctl, DRM_UNLOCKED), |
| DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, |
| vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, |
| exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, |
| exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, |
| exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY, |
| exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY, |
| exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF, |
| exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH), |
| DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL, |
| exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH), |
| }; |
| |
| static const struct file_operations exynos_drm_driver_fops = { |
| .owner = THIS_MODULE, |
| .open = drm_open, |
| .mmap = exynos_drm_gem_mmap, |
| .poll = drm_poll, |
| .read = drm_read, |
| .unlocked_ioctl = drm_ioctl, |
| #ifdef CONFIG_COMPAT |
| .compat_ioctl = drm_compat_ioctl, |
| #endif |
| .release = drm_release, |
| }; |
| |
| static struct drm_driver exynos_drm_driver = { |
| .driver_features = DRIVER_HAVE_IRQ | DRIVER_MODESET | |
| DRIVER_GEM | DRIVER_PRIME, |
| .load = exynos_drm_load, |
| .unload = exynos_drm_unload, |
| .suspend = exynos_drm_suspend, |
| .resume = exynos_drm_resume, |
| .open = exynos_drm_open, |
| .preclose = exynos_drm_preclose, |
| .lastclose = exynos_drm_lastclose, |
| .postclose = exynos_drm_postclose, |
| .get_vblank_counter = drm_vblank_count, |
| .enable_vblank = exynos_drm_crtc_enable_vblank, |
| .disable_vblank = exynos_drm_crtc_disable_vblank, |
| .gem_free_object = exynos_drm_gem_free_object, |
| .gem_vm_ops = &exynos_drm_gem_vm_ops, |
| .dumb_create = exynos_drm_gem_dumb_create, |
| .dumb_map_offset = exynos_drm_gem_dumb_map_offset, |
| .dumb_destroy = drm_gem_dumb_destroy, |
| .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
| .prime_fd_to_handle = drm_gem_prime_fd_to_handle, |
| .gem_prime_export = exynos_dmabuf_prime_export, |
| .gem_prime_import = exynos_dmabuf_prime_import, |
| .ioctls = exynos_ioctls, |
| .num_ioctls = ARRAY_SIZE(exynos_ioctls), |
| .fops = &exynos_drm_driver_fops, |
| .name = DRIVER_NAME, |
| .desc = DRIVER_DESC, |
| .date = DRIVER_DATE, |
| .major = DRIVER_MAJOR, |
| .minor = DRIVER_MINOR, |
| }; |
| |
| static int exynos_drm_platform_probe(struct platform_device *pdev) |
| { |
| int ret; |
| |
| ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); |
| if (ret) |
| return ret; |
| |
| pm_runtime_enable(&pdev->dev); |
| pm_runtime_get_sync(&pdev->dev); |
| |
| return drm_platform_init(&exynos_drm_driver, pdev); |
| } |
| |
| static int exynos_drm_platform_remove(struct platform_device *pdev) |
| { |
| drm_put_dev(platform_get_drvdata(pdev)); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM_SLEEP |
| static int exynos_drm_sys_suspend(struct device *dev) |
| { |
| struct drm_device *drm_dev = dev_get_drvdata(dev); |
| pm_message_t message; |
| |
| if (pm_runtime_suspended(dev)) |
| return 0; |
| |
| message.event = PM_EVENT_SUSPEND; |
| return exynos_drm_suspend(drm_dev, message); |
| } |
| |
| static int exynos_drm_sys_resume(struct device *dev) |
| { |
| struct drm_device *drm_dev = dev_get_drvdata(dev); |
| |
| if (pm_runtime_suspended(dev)) |
| return 0; |
| |
| return exynos_drm_resume(drm_dev); |
| } |
| #endif |
| |
| #ifdef CONFIG_PM_RUNTIME |
| static int exynos_drm_runtime_suspend(struct device *dev) |
| { |
| struct drm_device *drm_dev = dev_get_drvdata(dev); |
| pm_message_t message; |
| |
| if (pm_runtime_suspended(dev)) |
| return 0; |
| |
| message.event = PM_EVENT_SUSPEND; |
| return exynos_drm_suspend(drm_dev, message); |
| } |
| |
| static int exynos_drm_runtime_resume(struct device *dev) |
| { |
| struct drm_device *drm_dev = dev_get_drvdata(dev); |
| |
| if (!pm_runtime_suspended(dev)) |
| return 0; |
| |
| return exynos_drm_resume(drm_dev); |
| } |
| #endif |
| |
| static const struct dev_pm_ops exynos_drm_pm_ops = { |
| SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume) |
| SET_RUNTIME_PM_OPS(exynos_drm_runtime_suspend, |
| exynos_drm_runtime_resume, NULL) |
| }; |
| |
| static struct platform_driver exynos_drm_platform_driver = { |
| .probe = exynos_drm_platform_probe, |
| .remove = exynos_drm_platform_remove, |
| .driver = { |
| .owner = THIS_MODULE, |
| .name = "exynos-drm", |
| .pm = &exynos_drm_pm_ops, |
| }, |
| }; |
| |
| static int __init exynos_drm_init(void) |
| { |
| int ret; |
| |
| #ifdef CONFIG_DRM_EXYNOS_DP |
| ret = platform_driver_register(&dp_driver); |
| if (ret < 0) |
| goto out_dp; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_DSI |
| ret = platform_driver_register(&dsi_driver); |
| if (ret < 0) |
| goto out_dsi; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_FIMD |
| ret = platform_driver_register(&fimd_driver); |
| if (ret < 0) |
| goto out_fimd; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_HDMI |
| ret = platform_driver_register(&hdmi_driver); |
| if (ret < 0) |
| goto out_hdmi; |
| ret = platform_driver_register(&mixer_driver); |
| if (ret < 0) |
| goto out_mixer; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_VIDI |
| ret = platform_driver_register(&vidi_driver); |
| if (ret < 0) |
| goto out_vidi; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_G2D |
| ret = platform_driver_register(&g2d_driver); |
| if (ret < 0) |
| goto out_g2d; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_FIMC |
| ret = platform_driver_register(&fimc_driver); |
| if (ret < 0) |
| goto out_fimc; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_ROTATOR |
| ret = platform_driver_register(&rotator_driver); |
| if (ret < 0) |
| goto out_rotator; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_GSC |
| ret = platform_driver_register(&gsc_driver); |
| if (ret < 0) |
| goto out_gsc; |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_IPP |
| ret = platform_driver_register(&ipp_driver); |
| if (ret < 0) |
| goto out_ipp; |
| |
| ret = exynos_platform_device_ipp_register(); |
| if (ret < 0) |
| goto out_ipp_dev; |
| #endif |
| |
| ret = platform_driver_register(&exynos_drm_platform_driver); |
| if (ret < 0) |
| goto out_drm; |
| |
| exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1, |
| NULL, 0); |
| if (IS_ERR(exynos_drm_pdev)) { |
| ret = PTR_ERR(exynos_drm_pdev); |
| goto out; |
| } |
| |
| return 0; |
| |
| out: |
| platform_driver_unregister(&exynos_drm_platform_driver); |
| |
| out_drm: |
| #ifdef CONFIG_DRM_EXYNOS_IPP |
| exynos_platform_device_ipp_unregister(); |
| out_ipp_dev: |
| platform_driver_unregister(&ipp_driver); |
| out_ipp: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_GSC |
| platform_driver_unregister(&gsc_driver); |
| out_gsc: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_ROTATOR |
| platform_driver_unregister(&rotator_driver); |
| out_rotator: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_FIMC |
| platform_driver_unregister(&fimc_driver); |
| out_fimc: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_G2D |
| platform_driver_unregister(&g2d_driver); |
| out_g2d: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_VIDI |
| platform_driver_unregister(&vidi_driver); |
| out_vidi: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_HDMI |
| platform_driver_unregister(&mixer_driver); |
| out_mixer: |
| platform_driver_unregister(&hdmi_driver); |
| out_hdmi: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_FIMD |
| platform_driver_unregister(&fimd_driver); |
| out_fimd: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_DSI |
| platform_driver_unregister(&dsi_driver); |
| out_dsi: |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_DP |
| platform_driver_unregister(&dp_driver); |
| out_dp: |
| #endif |
| return ret; |
| } |
| |
| static void __exit exynos_drm_exit(void) |
| { |
| platform_device_unregister(exynos_drm_pdev); |
| |
| platform_driver_unregister(&exynos_drm_platform_driver); |
| |
| #ifdef CONFIG_DRM_EXYNOS_IPP |
| exynos_platform_device_ipp_unregister(); |
| platform_driver_unregister(&ipp_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_GSC |
| platform_driver_unregister(&gsc_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_ROTATOR |
| platform_driver_unregister(&rotator_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_FIMC |
| platform_driver_unregister(&fimc_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_G2D |
| platform_driver_unregister(&g2d_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_HDMI |
| platform_driver_unregister(&mixer_driver); |
| platform_driver_unregister(&hdmi_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_VIDI |
| platform_driver_unregister(&vidi_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_FIMD |
| platform_driver_unregister(&fimd_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_DSI |
| platform_driver_unregister(&dsi_driver); |
| #endif |
| |
| #ifdef CONFIG_DRM_EXYNOS_DP |
| platform_driver_unregister(&dp_driver); |
| #endif |
| } |
| |
| module_init(exynos_drm_init); |
| module_exit(exynos_drm_exit); |
| |
| MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); |
| MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); |
| MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>"); |
| MODULE_DESCRIPTION("Samsung SoC DRM Driver"); |
| MODULE_LICENSE("GPL"); |
