diff options
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_drv.c')
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_drv.c | 508 |
1 files changed, 508 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c new file mode 100644 index 0000000..d35a723 --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c @@ -0,0 +1,508 @@ +/* + * 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 <drm/drmP.h> +#include <drm/drm_crtc_helper.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; + + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL); + if (!private) { + DRM_ERROR("failed to allocate private\n"); + return -ENOMEM; + } + + INIT_LIST_HEAD(&private->pageflip_event_list); + 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_crtc; + } + + drm_mode_config_init(dev); + + /* init kms poll for handling hpd */ + drm_kms_helper_poll_init(dev); + + exynos_drm_mode_config_init(dev); + + /* + * EXYNOS4 is enough to have two CRTCs and each crtc would be used + * without dependency of hardware. + */ + for (nr = 0; nr < MAX_CRTC; nr++) { + ret = exynos_drm_crtc_create(dev, nr); + if (ret) + goto err_release_iommu_mapping; + } + + for (nr = 0; nr < MAX_PLANE; nr++) { + struct drm_plane *plane; + unsigned int possible_crtcs = (1 << MAX_CRTC) - 1; + + plane = exynos_plane_init(dev, possible_crtcs, false); + if (!plane) + goto err_release_iommu_mapping; + } + + ret = drm_vblank_init(dev, MAX_CRTC); + if (ret) + goto err_release_iommu_mapping; + + /* + * 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); + + /* + * create and configure fb helper and also exynos specific + * fbdev object. + */ + ret = exynos_drm_fbdev_init(dev); + if (ret) { + DRM_ERROR("failed to initialize drm fbdev\n"); + goto err_drm_device; + } + + drm_vblank_offdelay = VBLANK_OFF_DELAY; + + return 0; + +err_drm_device: + exynos_drm_device_unregister(dev); +err_vblank: + drm_vblank_cleanup(dev); +err_release_iommu_mapping: + drm_release_iommu_mapping(dev); +err_crtc: + drm_mode_config_cleanup(dev); + kfree(private); + + return ret; +} + +static int exynos_drm_unload(struct drm_device *dev) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + exynos_drm_fbdev_fini(dev); + exynos_drm_device_unregister(dev); + drm_vblank_cleanup(dev); + drm_kms_helper_poll_fini(dev); + drm_mode_config_cleanup(dev); + + drm_release_iommu_mapping(dev); + kfree(dev->dev_private); + + dev->dev_private = NULL; + + return 0; +} + +static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) +{ + struct drm_exynos_file_private *file_priv; + + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); + if (!file_priv) + return -ENOMEM; + + file->driver_priv = file_priv; + + return exynos_drm_subdrv_open(dev, file); +} + +static void exynos_drm_preclose(struct drm_device *dev, + struct drm_file *file) +{ + struct exynos_drm_private *private = dev->dev_private; + struct drm_pending_vblank_event *e, *t; + unsigned long flags; + + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + /* release events of current file */ + spin_lock_irqsave(&dev->event_lock, flags); + list_for_each_entry_safe(e, t, &private->pageflip_event_list, + base.link) { + if (e->base.file_priv == file) { + list_del(&e->base.link); + e->base.destroy(&e->base); + } + } + spin_unlock_irqrestore(&dev->event_lock, flags); + + exynos_drm_subdrv_close(dev, file); +} + +static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + if (!file->driver_priv) + return; + + kfree(file->driver_priv); + file->driver_priv = NULL; +} + +static void exynos_drm_lastclose(struct drm_device *dev) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + 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 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, + .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_init_object = exynos_drm_gem_init_object, + .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 = exynos_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, + .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) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + exynos_drm_driver.num_ioctls = DRM_ARRAY_SIZE(exynos_ioctls); + + return drm_platform_init(&exynos_drm_driver, pdev); +} + +static int exynos_drm_platform_remove(struct platform_device *pdev) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + drm_platform_exit(&exynos_drm_driver, pdev); + + return 0; +} + +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", + }, +}; + +static int __init exynos_drm_init(void) +{ + int ret; + + DRM_DEBUG_DRIVER("%s\n", __FILE__); + +#ifdef CPTCFG_DRM_EXYNOS_FIMD + ret = platform_driver_register(&fimd_driver); + if (ret < 0) + goto out_fimd; +#endif + +#ifdef CPTCFG_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; + ret = platform_driver_register(&exynos_drm_common_hdmi_driver); + if (ret < 0) + goto out_common_hdmi; + + ret = exynos_platform_device_hdmi_register(); + if (ret < 0) + goto out_common_hdmi_dev; +#endif + +#ifdef CPTCFG_DRM_EXYNOS_VIDI + ret = platform_driver_register(&vidi_driver); + if (ret < 0) + goto out_vidi; +#endif + +#ifdef CPTCFG_DRM_EXYNOS_G2D + ret = platform_driver_register(&g2d_driver); + if (ret < 0) + goto out_g2d; +#endif + +#ifdef CPTCFG_DRM_EXYNOS_FIMC + ret = platform_driver_register(&fimc_driver); + if (ret < 0) + goto out_fimc; +#endif + +#ifdef CPTCFG_DRM_EXYNOS_ROTATOR + ret = platform_driver_register(&rotator_driver); + if (ret < 0) + goto out_rotator; +#endif + +#ifdef CPTCFG_DRM_EXYNOS_GSC + ret = platform_driver_register(&gsc_driver); + if (ret < 0) + goto out_gsc; +#endif + +#ifdef CPTCFG_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 CPTCFG_DRM_EXYNOS_IPP + exynos_platform_device_ipp_unregister(); +out_ipp_dev: + platform_driver_unregister(&ipp_driver); +out_ipp: +#endif + +#ifdef CPTCFG_DRM_EXYNOS_GSC + platform_driver_unregister(&gsc_driver); +out_gsc: +#endif + +#ifdef CPTCFG_DRM_EXYNOS_ROTATOR + platform_driver_unregister(&rotator_driver); +out_rotator: +#endif + +#ifdef CPTCFG_DRM_EXYNOS_FIMC + platform_driver_unregister(&fimc_driver); +out_fimc: +#endif + +#ifdef CPTCFG_DRM_EXYNOS_G2D + platform_driver_unregister(&g2d_driver); +out_g2d: +#endif + +#ifdef CPTCFG_DRM_EXYNOS_VIDI + platform_driver_unregister(&vidi_driver); +out_vidi: +#endif + +#ifdef CPTCFG_DRM_EXYNOS_HDMI + exynos_platform_device_hdmi_unregister(); +out_common_hdmi_dev: + platform_driver_unregister(&exynos_drm_common_hdmi_driver); +out_common_hdmi: + platform_driver_unregister(&mixer_driver); +out_mixer: + platform_driver_unregister(&hdmi_driver); +out_hdmi: +#endif + +#ifdef CPTCFG_DRM_EXYNOS_FIMD + platform_driver_unregister(&fimd_driver); +out_fimd: +#endif + return ret; +} + +static void __exit exynos_drm_exit(void) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + platform_device_unregister(exynos_drm_pdev); + + platform_driver_unregister(&exynos_drm_platform_driver); + +#ifdef CPTCFG_DRM_EXYNOS_IPP + exynos_platform_device_ipp_unregister(); + platform_driver_unregister(&ipp_driver); +#endif + +#ifdef CPTCFG_DRM_EXYNOS_GSC + platform_driver_unregister(&gsc_driver); +#endif + +#ifdef CPTCFG_DRM_EXYNOS_ROTATOR + platform_driver_unregister(&rotator_driver); +#endif + +#ifdef CPTCFG_DRM_EXYNOS_FIMC + platform_driver_unregister(&fimc_driver); +#endif + +#ifdef CPTCFG_DRM_EXYNOS_G2D + platform_driver_unregister(&g2d_driver); +#endif + +#ifdef CPTCFG_DRM_EXYNOS_HDMI + exynos_platform_device_hdmi_unregister(); + platform_driver_unregister(&exynos_drm_common_hdmi_driver); + platform_driver_unregister(&mixer_driver); + platform_driver_unregister(&hdmi_driver); +#endif + +#ifdef CPTCFG_DRM_EXYNOS_VIDI + platform_driver_unregister(&vidi_driver); +#endif + +#ifdef CPTCFG_DRM_EXYNOS_FIMD + platform_driver_unregister(&fimd_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"); |