1 /* 2 * Copyright 2012 Red Hat 3 * 4 * This file is subject to the terms and conditions of the GNU General 5 * Public License version 2. See the file COPYING in the main 6 * directory of this archive for more details. 7 * 8 * Authors: Matthew Garrett 9 * Dave Airlie 10 */ 11 #include <linux/module.h> 12 #include <linux/console.h> 13 #include <drm/drmP.h> 14 15 #include "mgag200_drv.h" 16 17 #include <drm/drm_pciids.h> 18 19 /* 20 * This is the generic driver code. This binds the driver to the drm core, 21 * which then performs further device association and calls our graphics init 22 * functions 23 */ 24 int mgag200_modeset = -1; 25 26 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); 27 module_param_named(modeset, mgag200_modeset, int, 0400); 28 29 static struct drm_driver driver; 30 31 static const struct pci_device_id pciidlist[] = { 32 { PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_A }, 33 { PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B }, 34 { PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV }, 35 { PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB }, 36 { PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH }, 37 { PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER }, 38 {0,} 39 }; 40 41 MODULE_DEVICE_TABLE(pci, pciidlist); 42 43 static void mgag200_kick_out_firmware_fb(struct pci_dev *pdev) 44 { 45 struct apertures_struct *ap; 46 bool primary = false; 47 48 ap = alloc_apertures(1); 49 if (!ap) 50 return; 51 52 ap->ranges[0].base = pci_resource_start(pdev, 0); 53 ap->ranges[0].size = pci_resource_len(pdev, 0); 54 55 #ifdef CONFIG_X86 56 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; 57 #endif 58 remove_conflicting_framebuffers(ap, "mgag200drmfb", primary); 59 kfree(ap); 60 } 61 62 63 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 64 { 65 mgag200_kick_out_firmware_fb(pdev); 66 67 return drm_get_pci_dev(pdev, ent, &driver); 68 } 69 70 static void mga_pci_remove(struct pci_dev *pdev) 71 { 72 struct drm_device *dev = pci_get_drvdata(pdev); 73 74 drm_put_dev(dev); 75 } 76 77 static const struct file_operations mgag200_driver_fops = { 78 .owner = THIS_MODULE, 79 .open = drm_open, 80 .release = drm_release, 81 .unlocked_ioctl = drm_ioctl, 82 .mmap = mgag200_mmap, 83 .poll = drm_poll, 84 #ifdef CONFIG_COMPAT 85 .compat_ioctl = drm_compat_ioctl, 86 #endif 87 .read = drm_read, 88 }; 89 90 static struct drm_driver driver = { 91 .driver_features = DRIVER_GEM | DRIVER_MODESET, 92 .load = mgag200_driver_load, 93 .unload = mgag200_driver_unload, 94 .set_busid = drm_pci_set_busid, 95 .fops = &mgag200_driver_fops, 96 .name = DRIVER_NAME, 97 .desc = DRIVER_DESC, 98 .date = DRIVER_DATE, 99 .major = DRIVER_MAJOR, 100 .minor = DRIVER_MINOR, 101 .patchlevel = DRIVER_PATCHLEVEL, 102 103 .gem_free_object = mgag200_gem_free_object, 104 .dumb_create = mgag200_dumb_create, 105 .dumb_map_offset = mgag200_dumb_mmap_offset, 106 .dumb_destroy = drm_gem_dumb_destroy, 107 }; 108 109 static struct pci_driver mgag200_pci_driver = { 110 .name = DRIVER_NAME, 111 .id_table = pciidlist, 112 .probe = mga_pci_probe, 113 .remove = mga_pci_remove, 114 }; 115 116 static int __init mgag200_init(void) 117 { 118 #ifdef CONFIG_VGA_CONSOLE 119 if (vgacon_text_force() && mgag200_modeset == -1) 120 return -EINVAL; 121 #endif 122 123 if (mgag200_modeset == 0) 124 return -EINVAL; 125 return drm_pci_init(&driver, &mgag200_pci_driver); 126 } 127 128 static void __exit mgag200_exit(void) 129 { 130 drm_pci_exit(&driver, &mgag200_pci_driver); 131 } 132 133 module_init(mgag200_init); 134 module_exit(mgag200_exit); 135 136 MODULE_AUTHOR(DRIVER_AUTHOR); 137 MODULE_DESCRIPTION(DRIVER_DESC); 138 MODULE_LICENSE("GPL"); 139