2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
9 #include <linux/module.h>
10 #include <linux/slab.h>
11 #include <drm/drm_fb_helper.h>
12 #include <drm/drm_probe_helper.h>
16 static int bochs_modeset = -1;
17 module_param_named(modeset, bochs_modeset, int, 0444);
18 MODULE_PARM_DESC(modeset, "enable/disable kernel modesetting");
20 /* ---------------------------------------------------------------------- */
23 static void bochs_unload(struct drm_device *dev)
25 struct bochs_device *bochs = dev->dev_private;
27 bochs_kms_fini(bochs);
31 dev->dev_private = NULL;
34 static int bochs_load(struct drm_device *dev)
36 struct bochs_device *bochs;
39 bochs = kzalloc(sizeof(*bochs), GFP_KERNEL);
42 dev->dev_private = bochs;
45 ret = bochs_hw_init(dev);
49 ret = bochs_mm_init(bochs);
53 ret = bochs_kms_init(bochs);
64 static const struct file_operations bochs_fops = {
67 .release = drm_release,
68 .unlocked_ioctl = drm_ioctl,
69 .compat_ioctl = drm_compat_ioctl,
76 static struct drm_driver bochs_driver = {
77 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC |
81 .desc = "bochs dispi vga interface (qemu stdvga)",
85 .gem_free_object_unlocked = bochs_gem_free_object,
86 .dumb_create = bochs_dumb_create,
87 .dumb_map_offset = bochs_dumb_mmap_offset,
89 .gem_prime_export = drm_gem_prime_export,
90 .gem_prime_import = drm_gem_prime_import,
91 .gem_prime_pin = bochs_gem_prime_pin,
92 .gem_prime_unpin = bochs_gem_prime_unpin,
93 .gem_prime_vmap = bochs_gem_prime_vmap,
94 .gem_prime_vunmap = bochs_gem_prime_vunmap,
95 .gem_prime_mmap = bochs_gem_prime_mmap,
98 /* ---------------------------------------------------------------------- */
101 #ifdef CONFIG_PM_SLEEP
102 static int bochs_pm_suspend(struct device *dev)
104 struct pci_dev *pdev = to_pci_dev(dev);
105 struct drm_device *drm_dev = pci_get_drvdata(pdev);
107 return drm_mode_config_helper_suspend(drm_dev);
110 static int bochs_pm_resume(struct device *dev)
112 struct pci_dev *pdev = to_pci_dev(dev);
113 struct drm_device *drm_dev = pci_get_drvdata(pdev);
115 return drm_mode_config_helper_resume(drm_dev);
119 static const struct dev_pm_ops bochs_pm_ops = {
120 SET_SYSTEM_SLEEP_PM_OPS(bochs_pm_suspend,
124 /* ---------------------------------------------------------------------- */
127 static int bochs_pci_probe(struct pci_dev *pdev,
128 const struct pci_device_id *ent)
130 struct drm_device *dev;
131 unsigned long fbsize;
134 fbsize = pci_resource_len(pdev, 0);
135 if (fbsize < 4 * 1024 * 1024) {
136 DRM_ERROR("less than 4 MB video memory, ignoring device\n");
140 ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb");
144 dev = drm_dev_alloc(&bochs_driver, &pdev->dev);
149 pci_set_drvdata(pdev, dev);
151 ret = bochs_load(dev);
155 ret = drm_dev_register(dev, 0);
159 drm_fbdev_generic_setup(dev, 32);
169 static void bochs_pci_remove(struct pci_dev *pdev)
171 struct drm_device *dev = pci_get_drvdata(pdev);
173 drm_dev_unregister(dev);
178 static const struct pci_device_id bochs_pci_tbl[] = {
182 .subvendor = PCI_SUBVENDOR_ID_REDHAT_QUMRANET,
183 .subdevice = PCI_SUBDEVICE_ID_QEMU,
184 .driver_data = BOCHS_QEMU_STDVGA,
189 .subvendor = PCI_ANY_ID,
190 .subdevice = PCI_ANY_ID,
191 .driver_data = BOCHS_UNKNOWN,
193 { /* end of list */ }
196 static struct pci_driver bochs_pci_driver = {
198 .id_table = bochs_pci_tbl,
199 .probe = bochs_pci_probe,
200 .remove = bochs_pci_remove,
201 .driver.pm = &bochs_pm_ops,
204 /* ---------------------------------------------------------------------- */
205 /* module init/exit */
207 static int __init bochs_init(void)
209 if (vgacon_text_force() && bochs_modeset == -1)
212 if (bochs_modeset == 0)
215 return pci_register_driver(&bochs_pci_driver);
218 static void __exit bochs_exit(void)
220 pci_unregister_driver(&bochs_pci_driver);
223 module_init(bochs_init);
224 module_exit(bochs_exit);
226 MODULE_DEVICE_TABLE(pci, bochs_pci_tbl);
227 MODULE_AUTHOR("Gerd Hoffmann <kraxel@redhat.com>");
228 MODULE_LICENSE("GPL");