1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright 2012 Red Hat
5 * Authors: Matthew Garrett
9 #include <linux/console.h>
10 #include <linux/module.h>
11 #include <linux/pci.h>
13 #include <drm/drm_drv.h>
14 #include <drm/drm_file.h>
15 #include <drm/drm_ioctl.h>
16 #include <drm/drm_pciids.h>
18 #include "mgag200_drv.h"
20 int mgag200_modeset = -1;
21 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
22 module_param_named(modeset, mgag200_modeset, int, 0400);
28 DEFINE_DRM_GEM_FOPS(mgag200_driver_fops);
30 static struct drm_driver mgag200_driver = {
31 .driver_features = DRIVER_ATOMIC | DRIVER_GEM | DRIVER_MODESET,
32 .fops = &mgag200_driver_fops,
36 .major = DRIVER_MAJOR,
37 .minor = DRIVER_MINOR,
38 .patchlevel = DRIVER_PATCHLEVEL,
39 DRM_GEM_SHMEM_DRIVER_OPS,
46 static int mgag200_device_init(struct mga_device *mdev, unsigned long flags)
48 struct drm_device *dev = mdev->dev;
51 mdev->flags = mgag200_flags_from_driver_data(flags);
52 mdev->type = mgag200_type_from_driver_data(flags);
54 pci_read_config_dword(dev->pdev, PCI_MGA_OPTION, &option);
55 mdev->has_sdram = !(option & (1 << 14));
57 /* BAR 0 is the framebuffer, BAR 1 contains registers */
58 mdev->rmmio_base = pci_resource_start(dev->pdev, 1);
59 mdev->rmmio_size = pci_resource_len(dev->pdev, 1);
61 if (!devm_request_mem_region(dev->dev, mdev->rmmio_base,
62 mdev->rmmio_size, "mgadrmfb_mmio")) {
63 drm_err(dev, "can't reserve mmio registers\n");
67 mdev->rmmio = pcim_iomap(dev->pdev, 1, 0);
68 if (mdev->rmmio == NULL)
71 /* stash G200 SE model number for later use */
72 if (IS_G200_SE(mdev)) {
73 mdev->unique_rev_id = RREG32(0x1e24);
74 drm_dbg(dev, "G200 SE unique revision id is 0x%x\n",
78 ret = mgag200_mm_init(mdev);
82 ret = mgag200_modeset_init(mdev);
84 drm_err(dev, "Fatal error during modeset init: %d\n", ret);
91 static int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
93 struct mga_device *mdev;
96 mdev = devm_kzalloc(dev->dev, sizeof(struct mga_device), GFP_KERNEL);
99 dev->dev_private = (void *)mdev;
102 ret = mgag200_device_init(mdev, flags);
109 dev->dev_private = NULL;
113 static void mgag200_driver_unload(struct drm_device *dev)
115 struct mga_device *mdev = to_mga_device(dev);
119 dev->dev_private = NULL;
126 static const struct pci_device_id mgag200_pciidlist[] = {
127 { PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
128 G200_SE_A | MGAG200_FLAG_HW_BUG_NO_STARTADD},
129 { PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
130 { PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
131 { PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
132 { PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
133 { PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
134 { PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 },
135 { PCI_VENDOR_ID_MATROX, 0x538, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH3 },
139 MODULE_DEVICE_TABLE(pci, mgag200_pciidlist);
142 mgag200_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
144 struct drm_device *dev;
147 drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "mgag200drmfb");
149 ret = pcim_enable_device(pdev);
153 dev = drm_dev_alloc(&mgag200_driver, &pdev->dev);
158 pci_set_drvdata(pdev, dev);
160 ret = mgag200_driver_load(dev, ent->driver_data);
162 goto err_drm_dev_put;
164 ret = drm_dev_register(dev, ent->driver_data);
166 goto err_mgag200_driver_unload;
168 drm_fbdev_generic_setup(dev, 0);
172 err_mgag200_driver_unload:
173 mgag200_driver_unload(dev);
179 static void mgag200_pci_remove(struct pci_dev *pdev)
181 struct drm_device *dev = pci_get_drvdata(pdev);
183 drm_dev_unregister(dev);
184 mgag200_driver_unload(dev);
188 static struct pci_driver mgag200_pci_driver = {
190 .id_table = mgag200_pciidlist,
191 .probe = mgag200_pci_probe,
192 .remove = mgag200_pci_remove,
195 static int __init mgag200_init(void)
197 if (vgacon_text_force() && mgag200_modeset == -1)
200 if (mgag200_modeset == 0)
203 return pci_register_driver(&mgag200_pci_driver);
206 static void __exit mgag200_exit(void)
208 pci_unregister_driver(&mgag200_pci_driver);
211 module_init(mgag200_init);
212 module_exit(mgag200_exit);
214 MODULE_AUTHOR(DRIVER_AUTHOR);
215 MODULE_DESCRIPTION(DRIVER_DESC);
216 MODULE_LICENSE("GPL");