diff options
Diffstat (limited to 'drivers/gpu/drm/vboxvideo/vbox_drv.c')
| -rw-r--r-- | drivers/gpu/drm/vboxvideo/vbox_drv.c | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c new file mode 100644 index 000000000000..fb6a0f0b8167 --- /dev/null +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c @@ -0,0 +1,258 @@ +// SPDX-License-Identifier: MIT +/* + * Copyright (C) 2013-2017 Oracle Corporation + * This file is based on ast_drv.c + * Copyright 2012 Red Hat Inc. + * Authors: Dave Airlie <airlied@redhat.com> + * Michael Thayer <michael.thayer@oracle.com, + * Hans de Goede <hdegoede@redhat.com> + */ +#include <linux/console.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/vt_kern.h> + +#include <drm/drm_crtc_helper.h> +#include <drm/drm_drv.h> +#include <drm/drm_file.h> +#include <drm/drm_ioctl.h> + +#include "vbox_drv.h" + +static int vbox_modeset = -1; + +MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); +module_param_named(modeset, vbox_modeset, int, 0400); + +static struct drm_driver driver; + +static const struct pci_device_id pciidlist[] = { + { PCI_DEVICE(0x80ee, 0xbeef) }, + { } +}; +MODULE_DEVICE_TABLE(pci, pciidlist); + +static struct drm_fb_helper_funcs vbox_fb_helper_funcs = { + .fb_probe = vboxfb_create, +}; + +static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + struct vbox_private *vbox; + int ret = 0; + + if (!vbox_check_supported(VBE_DISPI_ID_HGSMI)) + return -ENODEV; + + vbox = kzalloc(sizeof(*vbox), GFP_KERNEL); + if (!vbox) + return -ENOMEM; + + ret = drm_dev_init(&vbox->ddev, &driver, &pdev->dev); + if (ret) { + kfree(vbox); + return ret; + } + + vbox->ddev.pdev = pdev; + vbox->ddev.dev_private = vbox; + pci_set_drvdata(pdev, vbox); + mutex_init(&vbox->hw_mutex); + + ret = pci_enable_device(pdev); + if (ret) + goto err_dev_put; + + ret = vbox_hw_init(vbox); + if (ret) + goto err_pci_disable; + + ret = vbox_mm_init(vbox); + if (ret) + goto err_hw_fini; + + ret = vbox_mode_init(vbox); + if (ret) + goto err_mm_fini; + + ret = vbox_irq_init(vbox); + if (ret) + goto err_mode_fini; + + ret = drm_fb_helper_fbdev_setup(&vbox->ddev, &vbox->fb_helper, + &vbox_fb_helper_funcs, 32, + vbox->num_crtcs); + if (ret) + goto err_irq_fini; + + ret = drm_dev_register(&vbox->ddev, 0); + if (ret) + goto err_fbdev_fini; + + return 0; + +err_fbdev_fini: + vbox_fbdev_fini(vbox); +err_irq_fini: + vbox_irq_fini(vbox); +err_mode_fini: + vbox_mode_fini(vbox); +err_mm_fini: + vbox_mm_fini(vbox); +err_hw_fini: + vbox_hw_fini(vbox); +err_pci_disable: + pci_disable_device(pdev); +err_dev_put: + drm_dev_put(&vbox->ddev); + return ret; +} + +static void vbox_pci_remove(struct pci_dev *pdev) +{ + struct vbox_private *vbox = pci_get_drvdata(pdev); + + drm_dev_unregister(&vbox->ddev); + vbox_fbdev_fini(vbox); + vbox_irq_fini(vbox); + vbox_mode_fini(vbox); + vbox_mm_fini(vbox); + vbox_hw_fini(vbox); + drm_dev_put(&vbox->ddev); +} + +#ifdef CONFIG_PM_SLEEP +static int vbox_pm_suspend(struct device *dev) +{ + struct vbox_private *vbox = dev_get_drvdata(dev); + int error; + + error = drm_mode_config_helper_suspend(&vbox->ddev); + if (error) + return error; + + pci_save_state(vbox->ddev.pdev); + pci_disable_device(vbox->ddev.pdev); + pci_set_power_state(vbox->ddev.pdev, PCI_D3hot); + + return 0; +} + +static int vbox_pm_resume(struct device *dev) +{ + struct vbox_private *vbox = dev_get_drvdata(dev); + + if (pci_enable_device(vbox->ddev.pdev)) + return -EIO; + + return drm_mode_config_helper_resume(&vbox->ddev); +} + +static int vbox_pm_freeze(struct device *dev) +{ + struct vbox_private *vbox = dev_get_drvdata(dev); + + return drm_mode_config_helper_suspend(&vbox->ddev); +} + +static int vbox_pm_thaw(struct device *dev) +{ + struct vbox_private *vbox = dev_get_drvdata(dev); + + return drm_mode_config_helper_resume(&vbox->ddev); +} + +static int vbox_pm_poweroff(struct device *dev) +{ + struct vbox_private *vbox = dev_get_drvdata(dev); + + return drm_mode_config_helper_suspend(&vbox->ddev); +} + +static const struct dev_pm_ops vbox_pm_ops = { + .suspend = vbox_pm_suspend, + .resume = vbox_pm_resume, + .freeze = vbox_pm_freeze, + .thaw = vbox_pm_thaw, + .poweroff = vbox_pm_poweroff, + .restore = vbox_pm_resume, +}; +#endif + +static struct pci_driver vbox_pci_driver = { + .name = DRIVER_NAME, + .id_table = pciidlist, + .probe = vbox_pci_probe, + .remove = vbox_pci_remove, +#ifdef CONFIG_PM_SLEEP + .driver.pm = &vbox_pm_ops, +#endif +}; + +static const struct file_operations vbox_fops = { + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .unlocked_ioctl = drm_ioctl, + .compat_ioctl = drm_compat_ioctl, + .mmap = vbox_mmap, + .poll = drm_poll, + .read = drm_read, +}; + +static struct drm_driver driver = { + .driver_features = + DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_ATOMIC, + + .lastclose = drm_fb_helper_lastclose, + + .fops = &vbox_fops, + .irq_handler = vbox_irq_handler, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, + + .gem_free_object_unlocked = vbox_gem_free_object, + .dumb_create = vbox_dumb_create, + .dumb_map_offset = vbox_dumb_mmap_offset, + .prime_handle_to_fd = drm_gem_prime_handle_to_fd, + .prime_fd_to_handle = drm_gem_prime_fd_to_handle, + .gem_prime_export = drm_gem_prime_export, + .gem_prime_import = drm_gem_prime_import, + .gem_prime_pin = vbox_gem_prime_pin, + .gem_prime_unpin = vbox_gem_prime_unpin, + .gem_prime_get_sg_table = vbox_gem_prime_get_sg_table, + .gem_prime_import_sg_table = vbox_gem_prime_import_sg_table, + .gem_prime_vmap = vbox_gem_prime_vmap, + .gem_prime_vunmap = vbox_gem_prime_vunmap, + .gem_prime_mmap = vbox_gem_prime_mmap, +}; + +static int __init vbox_init(void) +{ +#ifdef CONFIG_VGA_CONSOLE + if (vgacon_text_force() && vbox_modeset == -1) + return -EINVAL; +#endif + + if (vbox_modeset == 0) + return -EINVAL; + + return pci_register_driver(&vbox_pci_driver); +} + +static void __exit vbox_exit(void) +{ + pci_unregister_driver(&vbox_pci_driver); +} + +module_init(vbox_init); +module_exit(vbox_exit); + +MODULE_AUTHOR("Oracle Corporation"); +MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>"); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL and additional rights"); |