1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright 2012 Red Hat
5 * Authors: Matthew Garrett
9 #include <linux/module.h>
10 #include <linux/pci.h>
11 #include <linux/vmalloc.h>
13 #include <drm/drm_aperture.h>
14 #include <drm/drm_drv.h>
15 #include <drm/drm_file.h>
16 #include <drm/drm_ioctl.h>
17 #include <drm/drm_managed.h>
18 #include <drm/drm_module.h>
19 #include <drm/drm_pciids.h>
21 #include "mgag200_drv.h"
23 int mgag200_modeset = -1;
24 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
25 module_param_named(modeset, mgag200_modeset, int, 0400);
27 int mgag200_init_pci_options(struct pci_dev *pdev, u32 option, u32 option2)
29 struct device *dev = &pdev->dev;
32 err = pci_read_config_dword(pdev, PCI_MGA_OPTION, &option);
33 if (err != PCIBIOS_SUCCESSFUL) {
34 dev_err(dev, "pci_read_config_dword(PCI_MGA_OPTION) failed: %d\n", err);
35 return pcibios_err_to_errno(err);
38 err = pci_write_config_dword(pdev, PCI_MGA_OPTION, option);
39 if (err != PCIBIOS_SUCCESSFUL) {
40 dev_err(dev, "pci_write_config_dword(PCI_MGA_OPTION) failed: %d\n", err);
41 return pcibios_err_to_errno(err);
44 err = pci_write_config_dword(pdev, PCI_MGA_OPTION2, option2);
45 if (err != PCIBIOS_SUCCESSFUL) {
46 dev_err(dev, "pci_write_config_dword(PCI_MGA_OPTION2) failed: %d\n", err);
47 return pcibios_err_to_errno(err);
57 DEFINE_DRM_GEM_FOPS(mgag200_driver_fops);
59 static const struct drm_driver mgag200_driver = {
60 .driver_features = DRIVER_ATOMIC | DRIVER_GEM | DRIVER_MODESET,
61 .fops = &mgag200_driver_fops,
65 .major = DRIVER_MAJOR,
66 .minor = DRIVER_MINOR,
67 .patchlevel = DRIVER_PATCHLEVEL,
68 DRM_GEM_SHMEM_DRIVER_OPS,
75 int mgag200_regs_init(struct mga_device *mdev)
77 struct drm_device *dev = &mdev->base;
78 struct pci_dev *pdev = to_pci_dev(dev->dev);
82 ret = drmm_mutex_init(dev, &mdev->rmmio_lock);
86 /* BAR 1 contains registers */
87 mdev->rmmio_base = pci_resource_start(pdev, 1);
88 mdev->rmmio_size = pci_resource_len(pdev, 1);
90 if (!devm_request_mem_region(dev->dev, mdev->rmmio_base,
91 mdev->rmmio_size, "mgadrmfb_mmio")) {
92 drm_err(dev, "can't reserve mmio registers\n");
96 mdev->rmmio = pcim_iomap(pdev, 1, 0);
97 if (mdev->rmmio == NULL)
100 RREG_ECRT(0x03, crtcext3);
101 crtcext3 |= MGAREG_CRTCEXT3_MGAMODE;
102 WREG_ECRT(0x03, crtcext3);
111 static const struct pci_device_id mgag200_pciidlist[] = {
112 { PCI_VENDOR_ID_MATROX, 0x520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_PCI },
113 { PCI_VENDOR_ID_MATROX, 0x521, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_AGP },
114 { PCI_VENDOR_ID_MATROX, 0x522, PCI_ANY_ID, PCI_ANY_ID, 0, 0,
115 G200_SE_A | MGAG200_FLAG_HW_BUG_NO_STARTADD},
116 { PCI_VENDOR_ID_MATROX, 0x524, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_SE_B },
117 { PCI_VENDOR_ID_MATROX, 0x530, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EV },
118 { PCI_VENDOR_ID_MATROX, 0x532, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_WB },
119 { PCI_VENDOR_ID_MATROX, 0x533, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH },
120 { PCI_VENDOR_ID_MATROX, 0x534, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_ER },
121 { PCI_VENDOR_ID_MATROX, 0x536, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EW3 },
122 { PCI_VENDOR_ID_MATROX, 0x538, PCI_ANY_ID, PCI_ANY_ID, 0, 0, G200_EH3 },
126 MODULE_DEVICE_TABLE(pci, mgag200_pciidlist);
128 static enum mga_type mgag200_type_from_driver_data(kernel_ulong_t driver_data)
130 return (enum mga_type)(driver_data & MGAG200_TYPE_MASK);
133 static unsigned long mgag200_flags_from_driver_data(kernel_ulong_t driver_data)
135 return driver_data & MGAG200_FLAG_MASK;
139 mgag200_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
141 kernel_ulong_t driver_data = ent->driver_data;
142 enum mga_type type = mgag200_type_from_driver_data(driver_data);
143 unsigned long flags = mgag200_flags_from_driver_data(driver_data);
144 struct mga_device *mdev;
145 struct drm_device *dev;
148 ret = drm_aperture_remove_conflicting_pci_framebuffers(pdev, &mgag200_driver);
152 ret = pcim_enable_device(pdev);
159 mdev = mgag200_g200_device_create(pdev, &mgag200_driver, type, flags);
163 mdev = mgag200_g200se_device_create(pdev, &mgag200_driver, type, flags);
166 mdev = mgag200_g200wb_device_create(pdev, &mgag200_driver, type, flags);
169 mdev = mgag200_g200ev_device_create(pdev, &mgag200_driver, type, flags);
172 mdev = mgag200_g200eh_device_create(pdev, &mgag200_driver, type, flags);
175 mdev = mgag200_g200eh3_device_create(pdev, &mgag200_driver, type, flags);
178 mdev = mgag200_g200er_device_create(pdev, &mgag200_driver, type, flags);
181 mdev = mgag200_g200ew3_device_create(pdev, &mgag200_driver, type, flags);
184 dev_err(&pdev->dev, "Device type %d is unsupported\n", type);
188 return PTR_ERR(mdev);
191 ret = drm_dev_register(dev, 0);
195 drm_fbdev_generic_setup(dev, 0);
200 static void mgag200_pci_remove(struct pci_dev *pdev)
202 struct drm_device *dev = pci_get_drvdata(pdev);
204 drm_dev_unregister(dev);
207 static struct pci_driver mgag200_pci_driver = {
209 .id_table = mgag200_pciidlist,
210 .probe = mgag200_pci_probe,
211 .remove = mgag200_pci_remove,
214 drm_module_pci_driver_if_modeset(mgag200_pci_driver, mgag200_modeset);
216 MODULE_AUTHOR(DRIVER_AUTHOR);
217 MODULE_DESCRIPTION(DRIVER_DESC);
218 MODULE_LICENSE("GPL");