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f9aa76a8 DA |
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> | |
760285e7 | 13 | #include <drm/drmP.h> |
f9aa76a8 DA |
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 | ||
dedc14e2 | 37 | |
bfb82ff0 | 38 | static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev) |
dedc14e2 DA |
39 | { |
40 | struct apertures_struct *ap; | |
41 | bool primary = false; | |
42 | ||
43 | ap = alloc_apertures(1); | |
bfb82ff0 TR |
44 | if (!ap) |
45 | return -ENOMEM; | |
46 | ||
dedc14e2 DA |
47 | ap->ranges[0].base = pci_resource_start(pdev, 0); |
48 | ap->ranges[0].size = pci_resource_len(pdev, 0); | |
49 | ||
50 | #ifdef CONFIG_X86 | |
51 | primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; | |
52 | #endif | |
53 | remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary); | |
54 | kfree(ap); | |
bfb82ff0 TR |
55 | |
56 | return 0; | |
dedc14e2 DA |
57 | } |
58 | ||
56550d94 GKH |
59 | static int cirrus_pci_probe(struct pci_dev *pdev, |
60 | const struct pci_device_id *ent) | |
f9aa76a8 | 61 | { |
bfb82ff0 TR |
62 | int ret; |
63 | ||
64 | ret = cirrus_kick_out_firmware_fb(pdev); | |
65 | if (ret) | |
66 | return ret; | |
dedc14e2 | 67 | |
f9aa76a8 DA |
68 | return drm_get_pci_dev(pdev, ent, &driver); |
69 | } | |
70 | ||
71 | static void cirrus_pci_remove(struct pci_dev *pdev) | |
72 | { | |
73 | struct drm_device *dev = pci_get_drvdata(pdev); | |
74 | ||
75 | drm_put_dev(dev); | |
76 | } | |
77 | ||
78 | static const struct file_operations cirrus_driver_fops = { | |
79 | .owner = THIS_MODULE, | |
80 | .open = drm_open, | |
81 | .release = drm_release, | |
82 | .unlocked_ioctl = drm_ioctl, | |
83 | .mmap = cirrus_mmap, | |
84 | .poll = drm_poll, | |
804d74ab KP |
85 | #ifdef CONFIG_COMPAT |
86 | .compat_ioctl = drm_compat_ioctl, | |
87 | #endif | |
f9aa76a8 DA |
88 | .fasync = drm_fasync, |
89 | }; | |
90 | static struct drm_driver driver = { | |
91 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_USE_MTRR, | |
92 | .load = cirrus_driver_load, | |
93 | .unload = cirrus_driver_unload, | |
94 | .fops = &cirrus_driver_fops, | |
95 | .name = DRIVER_NAME, | |
96 | .desc = DRIVER_DESC, | |
97 | .date = DRIVER_DATE, | |
98 | .major = DRIVER_MAJOR, | |
99 | .minor = DRIVER_MINOR, | |
100 | .patchlevel = DRIVER_PATCHLEVEL, | |
101 | .gem_init_object = cirrus_gem_init_object, | |
102 | .gem_free_object = cirrus_gem_free_object, | |
103 | .dumb_create = cirrus_dumb_create, | |
104 | .dumb_map_offset = cirrus_dumb_mmap_offset, | |
105 | .dumb_destroy = cirrus_dumb_destroy, | |
106 | }; | |
107 | ||
108 | static struct pci_driver cirrus_pci_driver = { | |
109 | .name = DRIVER_NAME, | |
110 | .id_table = pciidlist, | |
111 | .probe = cirrus_pci_probe, | |
112 | .remove = cirrus_pci_remove, | |
113 | }; | |
114 | ||
115 | static int __init cirrus_init(void) | |
116 | { | |
4688a69d | 117 | #ifdef CONFIG_VGA_CONSOLE |
f9aa76a8 DA |
118 | if (vgacon_text_force() && cirrus_modeset == -1) |
119 | return -EINVAL; | |
4688a69d | 120 | #endif |
f9aa76a8 DA |
121 | |
122 | if (cirrus_modeset == 0) | |
123 | return -EINVAL; | |
124 | return drm_pci_init(&driver, &cirrus_pci_driver); | |
125 | } | |
126 | ||
127 | static void __exit cirrus_exit(void) | |
128 | { | |
129 | drm_pci_exit(&driver, &cirrus_pci_driver); | |
130 | } | |
131 | ||
132 | module_init(cirrus_init); | |
133 | module_exit(cirrus_exit); | |
134 | ||
135 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
136 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
137 | MODULE_DESCRIPTION(DRIVER_DESC); | |
138 | MODULE_LICENSE("GPL"); |