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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> |
2f1e8007 | 14 | #include <drm/drm_crtc_helper.h> |
f9aa76a8 DA |
15 | |
16 | #include "cirrus_drv.h" | |
17 | ||
18 | int cirrus_modeset = -1; | |
19 | ||
20 | MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); | |
21 | module_param_named(modeset, cirrus_modeset, int, 0400); | |
22 | ||
23 | /* | |
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 | |
26 | * functions | |
27 | */ | |
28 | ||
29 | static struct drm_driver driver; | |
30 | ||
31 | /* only bind to the cirrus chip in qemu */ | |
9baa3c34 | 32 | static const struct pci_device_id pciidlist[] = { |
f9aa76a8 DA |
33 | { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0, |
34 | 0, 0 }, | |
35 | {0,} | |
36 | }; | |
37 | ||
dedc14e2 | 38 | |
bfb82ff0 | 39 | static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev) |
dedc14e2 DA |
40 | { |
41 | struct apertures_struct *ap; | |
42 | bool primary = false; | |
43 | ||
44 | ap = alloc_apertures(1); | |
bfb82ff0 TR |
45 | if (!ap) |
46 | return -ENOMEM; | |
47 | ||
dedc14e2 DA |
48 | ap->ranges[0].base = pci_resource_start(pdev, 0); |
49 | ap->ranges[0].size = pci_resource_len(pdev, 0); | |
50 | ||
51 | #ifdef CONFIG_X86 | |
52 | primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; | |
53 | #endif | |
54 | remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary); | |
55 | kfree(ap); | |
bfb82ff0 TR |
56 | |
57 | return 0; | |
dedc14e2 DA |
58 | } |
59 | ||
56550d94 GKH |
60 | static int cirrus_pci_probe(struct pci_dev *pdev, |
61 | const struct pci_device_id *ent) | |
f9aa76a8 | 62 | { |
bfb82ff0 TR |
63 | int ret; |
64 | ||
65 | ret = cirrus_kick_out_firmware_fb(pdev); | |
66 | if (ret) | |
67 | return ret; | |
dedc14e2 | 68 | |
f9aa76a8 DA |
69 | return drm_get_pci_dev(pdev, ent, &driver); |
70 | } | |
71 | ||
72 | static void cirrus_pci_remove(struct pci_dev *pdev) | |
73 | { | |
74 | struct drm_device *dev = pci_get_drvdata(pdev); | |
75 | ||
76 | drm_put_dev(dev); | |
77 | } | |
78 | ||
8f8e7e14 | 79 | #ifdef CONFIG_PM_SLEEP |
2f1e8007 GH |
80 | static int cirrus_pm_suspend(struct device *dev) |
81 | { | |
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; | |
85 | ||
86 | drm_kms_helper_poll_disable(drm_dev); | |
87 | ||
88 | if (cdev->mode_info.gfbdev) { | |
89 | console_lock(); | |
90 | fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 1); | |
91 | console_unlock(); | |
92 | } | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
97 | static int cirrus_pm_resume(struct device *dev) | |
98 | { | |
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; | |
102 | ||
103 | drm_helper_resume_force_mode(drm_dev); | |
104 | ||
105 | if (cdev->mode_info.gfbdev) { | |
106 | console_lock(); | |
107 | fb_set_suspend(cdev->mode_info.gfbdev->helper.fbdev, 0); | |
108 | console_unlock(); | |
109 | } | |
110 | ||
111 | drm_kms_helper_poll_enable(drm_dev); | |
112 | return 0; | |
113 | } | |
8f8e7e14 | 114 | #endif |
2f1e8007 | 115 | |
f9aa76a8 DA |
116 | static const struct file_operations cirrus_driver_fops = { |
117 | .owner = THIS_MODULE, | |
118 | .open = drm_open, | |
119 | .release = drm_release, | |
120 | .unlocked_ioctl = drm_ioctl, | |
121 | .mmap = cirrus_mmap, | |
122 | .poll = drm_poll, | |
804d74ab KP |
123 | #ifdef CONFIG_COMPAT |
124 | .compat_ioctl = drm_compat_ioctl, | |
125 | #endif | |
f9aa76a8 DA |
126 | }; |
127 | static struct drm_driver driver = { | |
28185647 | 128 | .driver_features = DRIVER_MODESET | DRIVER_GEM, |
f9aa76a8 DA |
129 | .load = cirrus_driver_load, |
130 | .unload = cirrus_driver_unload, | |
131 | .fops = &cirrus_driver_fops, | |
132 | .name = DRIVER_NAME, | |
133 | .desc = DRIVER_DESC, | |
134 | .date = DRIVER_DATE, | |
135 | .major = DRIVER_MAJOR, | |
136 | .minor = DRIVER_MINOR, | |
137 | .patchlevel = DRIVER_PATCHLEVEL, | |
f9aa76a8 DA |
138 | .gem_free_object = cirrus_gem_free_object, |
139 | .dumb_create = cirrus_dumb_create, | |
140 | .dumb_map_offset = cirrus_dumb_mmap_offset, | |
43387b37 | 141 | .dumb_destroy = drm_gem_dumb_destroy, |
f9aa76a8 DA |
142 | }; |
143 | ||
2f1e8007 GH |
144 | static const struct dev_pm_ops cirrus_pm_ops = { |
145 | SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend, | |
146 | cirrus_pm_resume) | |
147 | }; | |
148 | ||
f9aa76a8 DA |
149 | static struct pci_driver cirrus_pci_driver = { |
150 | .name = DRIVER_NAME, | |
151 | .id_table = pciidlist, | |
152 | .probe = cirrus_pci_probe, | |
153 | .remove = cirrus_pci_remove, | |
2f1e8007 | 154 | .driver.pm = &cirrus_pm_ops, |
f9aa76a8 DA |
155 | }; |
156 | ||
157 | static int __init cirrus_init(void) | |
158 | { | |
4688a69d | 159 | #ifdef CONFIG_VGA_CONSOLE |
f9aa76a8 DA |
160 | if (vgacon_text_force() && cirrus_modeset == -1) |
161 | return -EINVAL; | |
4688a69d | 162 | #endif |
f9aa76a8 DA |
163 | |
164 | if (cirrus_modeset == 0) | |
165 | return -EINVAL; | |
166 | return drm_pci_init(&driver, &cirrus_pci_driver); | |
167 | } | |
168 | ||
169 | static void __exit cirrus_exit(void) | |
170 | { | |
171 | drm_pci_exit(&driver, &cirrus_pci_driver); | |
172 | } | |
173 | ||
174 | module_init(cirrus_init); | |
175 | module_exit(cirrus_exit); | |
176 | ||
177 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
178 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
179 | MODULE_DESCRIPTION(DRIVER_DESC); | |
180 | MODULE_LICENSE("GPL"); |