]> Pileus Git - ~andy/linux/blob - drivers/gpu/drm/cirrus/cirrus_drv.c
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney...
[~andy/linux] / drivers / gpu / drm / cirrus / cirrus_drv.c
1 /*
2  * Copyright 2012 Red Hat <mjg@redhat.com>
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 "cirrus_drv.h"
16
17 int cirrus_modeset = -1;
18
19 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
20 module_param_named(modeset, cirrus_modeset, int, 0400);
21
22 /*
23  * This is the generic driver code. This binds the driver to the drm core,
24  * which then performs further device association and calls our graphics init
25  * functions
26  */
27
28 static struct drm_driver driver;
29
30 /* only bind to the cirrus chip in qemu */
31 static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
32         { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0,
33           0, 0 },
34         {0,}
35 };
36
37
38 static void cirrus_kick_out_firmware_fb(struct pci_dev *pdev)
39 {
40         struct apertures_struct *ap;
41         bool primary = false;
42
43         ap = alloc_apertures(1);
44         ap->ranges[0].base = pci_resource_start(pdev, 0);
45         ap->ranges[0].size = pci_resource_len(pdev, 0);
46
47 #ifdef CONFIG_X86
48         primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW;
49 #endif
50         remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary);
51         kfree(ap);
52 }
53
54 static int __devinit
55 cirrus_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
56 {
57         cirrus_kick_out_firmware_fb(pdev);
58
59         return drm_get_pci_dev(pdev, ent, &driver);
60 }
61
62 static void cirrus_pci_remove(struct pci_dev *pdev)
63 {
64         struct drm_device *dev = pci_get_drvdata(pdev);
65
66         drm_put_dev(dev);
67 }
68
69 static const struct file_operations cirrus_driver_fops = {
70         .owner = THIS_MODULE,
71         .open = drm_open,
72         .release = drm_release,
73         .unlocked_ioctl = drm_ioctl,
74         .mmap = cirrus_mmap,
75         .poll = drm_poll,
76 #ifdef CONFIG_COMPAT
77         .compat_ioctl = drm_compat_ioctl,
78 #endif
79         .fasync = drm_fasync,
80 };
81 static struct drm_driver driver = {
82         .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_USE_MTRR,
83         .load = cirrus_driver_load,
84         .unload = cirrus_driver_unload,
85         .fops = &cirrus_driver_fops,
86         .name = DRIVER_NAME,
87         .desc = DRIVER_DESC,
88         .date = DRIVER_DATE,
89         .major = DRIVER_MAJOR,
90         .minor = DRIVER_MINOR,
91         .patchlevel = DRIVER_PATCHLEVEL,
92         .gem_init_object = cirrus_gem_init_object,
93         .gem_free_object = cirrus_gem_free_object,
94         .dumb_create = cirrus_dumb_create,
95         .dumb_map_offset = cirrus_dumb_mmap_offset,
96         .dumb_destroy = cirrus_dumb_destroy,
97 };
98
99 static struct pci_driver cirrus_pci_driver = {
100         .name = DRIVER_NAME,
101         .id_table = pciidlist,
102         .probe = cirrus_pci_probe,
103         .remove = cirrus_pci_remove,
104 };
105
106 static int __init cirrus_init(void)
107 {
108 #ifdef CONFIG_VGA_CONSOLE
109         if (vgacon_text_force() && cirrus_modeset == -1)
110                 return -EINVAL;
111 #endif
112
113         if (cirrus_modeset == 0)
114                 return -EINVAL;
115         return drm_pci_init(&driver, &cirrus_pci_driver);
116 }
117
118 static void __exit cirrus_exit(void)
119 {
120         drm_pci_exit(&driver, &cirrus_pci_driver);
121 }
122
123 module_init(cirrus_init);
124 module_exit(cirrus_exit);
125
126 MODULE_DEVICE_TABLE(pci, pciidlist);
127 MODULE_AUTHOR(DRIVER_AUTHOR);
128 MODULE_DESCRIPTION(DRIVER_DESC);
129 MODULE_LICENSE("GPL");