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 DEFINE_PCI_DEVICE_TABLE(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 __devinit 64 mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 65 { 66 mgag200_kick_out_firmware_fb(pdev); 67 68 return drm_get_pci_dev(pdev, ent, &driver); 69 } 70 71 static void mga_pci_remove(struct pci_dev *pdev) 72 { 73 struct drm_device *dev = pci_get_drvdata(pdev); 74 75 drm_put_dev(dev); 76 } 77 78 static const struct file_operations mgag200_driver_fops = { 79 .owner = THIS_MODULE, 80 .open = drm_open, 81 .release = drm_release, 82 .unlocked_ioctl = drm_ioctl, 83 .mmap = mgag200_mmap, 84 .poll = drm_poll, 85 .fasync = drm_fasync, 86 #ifdef CONFIG_COMPAT 87 .compat_ioctl = drm_compat_ioctl, 88 #endif 89 .read = drm_read, 90 }; 91 92 static struct drm_driver driver = { 93 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_USE_MTRR, 94 .load = mgag200_driver_load, 95 .unload = mgag200_driver_unload, 96 .fops = &mgag200_driver_fops, 97 .name = DRIVER_NAME, 98 .desc = DRIVER_DESC, 99 .date = DRIVER_DATE, 100 .major = DRIVER_MAJOR, 101 .minor = DRIVER_MINOR, 102 .patchlevel = DRIVER_PATCHLEVEL, 103 104 .gem_init_object = mgag200_gem_init_object, 105 .gem_free_object = mgag200_gem_free_object, 106 .dumb_create = mgag200_dumb_create, 107 .dumb_map_offset = mgag200_dumb_mmap_offset, 108 .dumb_destroy = mgag200_dumb_destroy, 109 }; 110 111 static struct pci_driver mgag200_pci_driver = { 112 .name = DRIVER_NAME, 113 .id_table = pciidlist, 114 .probe = mga_pci_probe, 115 .remove = mga_pci_remove, 116 }; 117 118 static int __init mgag200_init(void) 119 { 120 #ifdef CONFIG_VGA_CONSOLE 121 if (vgacon_text_force() && mgag200_modeset == -1) 122 return -EINVAL; 123 #endif 124 125 if (mgag200_modeset == 0) 126 return -EINVAL; 127 return drm_pci_init(&driver, &mgag200_pci_driver); 128 } 129 130 static void __exit mgag200_exit(void) 131 { 132 drm_pci_exit(&driver, &mgag200_pci_driver); 133 } 134 135 module_init(mgag200_init); 136 module_exit(mgag200_exit); 137 138 MODULE_AUTHOR(DRIVER_AUTHOR); 139 MODULE_DESCRIPTION(DRIVER_DESC); 140 MODULE_LICENSE("GPL"); 141