diff options
Diffstat (limited to 'drivers/gpu/drm/mgag200/mgag200_drv.c')
-rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_drv.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c new file mode 100644 index 000000000..74cdde2ee --- /dev/null +++ b/drivers/gpu/drm/mgag200/mgag200_drv.c @@ -0,0 +1,135 @@ +/* + * Copyright 2012 Red Hat + * + * This file is subject to the terms and conditions of the GNU General + * Public License version 2. See the file COPYING in the main + * directory of this archive for more details. + * + * Authors: Matthew Garrett + * Dave Airlie + */ +#include <linux/module.h> +#include <linux/console.h> +#include <drm/drmP.h> + +#include "mgag200_drv.h" + +#include <drm/drm_pciids.h> + +/* + * This is the generic driver code. This binds the driver to the drm core, + * which then performs further device association and calls our graphics init + * functions + */ +int mgag200_modeset = -1; + +MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); +module_param_named(modeset, mgag200_modeset, int, 0400); + +static struct drm_driver driver; + +static const struct pci_device_id pciidlist[] = { + { PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A }, + { PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B }, + { PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV }, + { PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB }, + { PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH }, + { PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER }, + { PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 }, + { PCI_VENDOR_ID_MATROX, 0x538, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH3 }, + {0,} +}; + +MODULE_DEVICE_TABLE(pci, pciidlist); + +static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev) +{ + struct apertures_struct *ap; + bool primary = false; + + ap = alloc_apertures(1); + if (!ap) + return; + + ap->ranges[0].base = pci_resource_start(pdev, 0); + ap->ranges[0].size = pci_resource_len(pdev, 0); + +#ifdef CONFIG_X86 + primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; +#endif + drm_fb_helper_remove_conflicting_framebuffers(ap, "mgag200drmfb", primary); + kfree(ap); +} + + +static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) +{ + mgag200_kick_out_firmware_fb(pdev); + + return drm_get_pci_dev(pdev, ent, &driver); +} + +static void mga_pci_remove(struct pci_dev *pdev) +{ + struct drm_device *dev = pci_get_drvdata(pdev); + + drm_put_dev(dev); +} + +static const struct file_operations mgag200_driver_fops = { + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .unlocked_ioctl = drm_ioctl, + .mmap = mgag200_mmap, + .poll = drm_poll, + .compat_ioctl = drm_compat_ioctl, + .read = drm_read, +}; + +static struct drm_driver driver = { + .driver_features = DRIVER_GEM | DRIVER_MODESET, + .load = mgag200_driver_load, + .unload = mgag200_driver_unload, + .fops = &mgag200_driver_fops, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, + + .gem_free_object_unlocked = mgag200_gem_free_object, + .dumb_create = mgag200_dumb_create, + .dumb_map_offset = mgag200_dumb_mmap_offset, +}; + +static struct pci_driver mgag200_pci_driver = { + .name = DRIVER_NAME, + .id_table = pciidlist, + .probe = mga_pci_probe, + .remove = mga_pci_remove, +}; + +static int __init mgag200_init(void) +{ + if (vgacon_text_force() && mgag200_modeset == -1) + return -EINVAL; + + if (mgag200_modeset == 0) + return -EINVAL; + + return pci_register_driver(&mgag200_pci_driver); +} + +static void __exit mgag200_exit(void) +{ + pci_unregister_driver(&mgag200_pci_driver); +} + +module_init(mgag200_init); +module_exit(mgag200_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); |