2 * Copyright 2012 Red Hat <mjg@redhat.com>
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.
8 * Authors: Matthew Garrett
11 #include <linux/module.h>
12 #include <linux/console.h>
14 #include <drm/drm_crtc_helper.h>
16 #include "cirrus_drv.h"
18 int cirrus_modeset = -1;
20 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
21 module_param_named(modeset, cirrus_modeset, int, 0400);
24 * This is the generic driver code. This binds the driver to the drm core,
25 * which then performs further device association and calls our graphics init
29 static struct drm_driver driver;
31 /* only bind to the cirrus chip in qemu */
32 static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
33 { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0,
39 static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
41 struct apertures_struct *ap;
44 ap = alloc_apertures(1);
48 ap->ranges[0].base = pci_resource_start(pdev, 0);
49 ap->ranges[0].size = pci_resource_len(pdev, 0);
52 primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
54 remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
60 static int cirrus_pci_probe(struct pci_dev *pdev,
61 const struct pci_device_id *ent)
65 ret = cirrus_kick_out_firmware_fb(pdev);
69 return drm_get_pci_dev(pdev, ent, &driver);
72 static void cirrus_pci_remove(struct pci_dev *pdev)
74 struct drm_device *dev = pci_get_drvdata(pdev);
79 #ifdef CONFIG_PM_SLEEP
80 static int cirrus_pm_suspend(struct device *dev)
82 struct pci_dev *pdev = to_pci_dev(dev);
83 struct drm_device *drm_dev = pci_get_drvdata(pdev);
84 struct cirrus_device *cdev = drm_dev->dev_private;
86 drm_kms_helper_poll_disable(drm_dev);
88 if (cdev->mode_info.gfbdev) {
90 fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 1);
97 static int cirrus_pm_resume(struct device *dev)
99 struct pci_dev *pdev = to_pci_dev(dev);
100 struct drm_device *drm_dev = pci_get_drvdata(pdev);
101 struct cirrus_device *cdev = drm_dev->dev_private;
103 drm_helper_resume_force_mode(drm_dev);
105 if (cdev->mode_info.gfbdev) {
107 fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 0);
111 drm_kms_helper_poll_enable(drm_dev);
116 static const struct file_operations cirrus_driver_fops = {
117 .owner = THIS_MODULE,
119 .release = drm_release,
120 .unlocked_ioctl = drm_ioctl,
124 .compat_ioctl = drm_compat_ioctl,
127 static struct drm_driver driver = {
128 .driver_features = DRIVER_MODESET | DRIVER_GEM,
129 .load = cirrus_driver_load,
130 .unload = cirrus_driver_unload,
131 .fops = &cirrus_driver_fops,
135 .major = DRIVER_MAJOR,
136 .minor = DRIVER_MINOR,
137 .patchlevel = DRIVER_PATCHLEVEL,
138 .gem_free_object = cirrus_gem_free_object,
139 .dumb_create = cirrus_dumb_create,
140 .dumb_map_offset = cirrus_dumb_mmap_offset,
141 .dumb_destroy = drm_gem_dumb_destroy,
144 static const struct dev_pm_ops cirrus_pm_ops = {
145 SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend,
149 static struct pci_driver cirrus_pci_driver = {
151 .id_table = pciidlist,
152 .probe = cirrus_pci_probe,
153 .remove = cirrus_pci_remove,
154 .driver.pm = &cirrus_pm_ops,
157 static int __init cirrus_init(void)
159 #ifdef CONFIG_VGA_CONSOLE
160 if (vgacon_text_force() && cirrus_modeset == -1)
164 if (cirrus_modeset == 0)
166 return drm_pci_init(&driver, &cirrus_pci_driver);
169 static void __exit cirrus_exit(void)
171 drm_pci_exit(&driver, &cirrus_pci_driver);
174 module_init(cirrus_init);
175 module_exit(cirrus_exit);
177 MODULE_DEVICE_TABLE(pci, pciidlist);
178 MODULE_AUTHOR(DRIVER_AUTHOR);
179 MODULE_DESCRIPTION(DRIVER_DESC);
180 MODULE_LICENSE("GPL");