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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; | |
7f551b1e | 19 | int cirrus_bpp = 24; |
f9aa76a8 DA |
20 | |
21 | MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); | |
22 | module_param_named(modeset, cirrus_modeset, int, 0400); | |
7f551b1e TI |
23 | MODULE_PARM_DESC(bpp, "Max bits-per-pixel (default:24)"); |
24 | module_param_named(bpp, cirrus_bpp, int, 0400); | |
f9aa76a8 DA |
25 | |
26 | /* | |
27 | * This is the generic driver code. This binds the driver to the drm core, | |
28 | * which then performs further device association and calls our graphics init | |
29 | * functions | |
30 | */ | |
31 | ||
32 | static struct drm_driver driver; | |
33 | ||
34 | /* only bind to the cirrus chip in qemu */ | |
9baa3c34 | 35 | static const struct pci_device_id pciidlist[] = { |
f9aa76a8 DA |
36 | { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, 0x1af4, 0x1100, 0, |
37 | 0, 0 }, | |
c0c3e735 OH |
38 | { PCI_VENDOR_ID_CIRRUS, PCI_DEVICE_ID_CIRRUS_5446, PCI_VENDOR_ID_XEN, |
39 | 0x0001, 0, 0, 0 }, | |
f9aa76a8 DA |
40 | {0,} |
41 | }; | |
42 | ||
dedc14e2 | 43 | |
bfb82ff0 | 44 | static int cirrus_kick_out_firmware_fb(struct pci_dev *pdev) |
dedc14e2 DA |
45 | { |
46 | struct apertures_struct *ap; | |
47 | bool primary = false; | |
48 | ||
49 | ap = alloc_apertures(1); | |
bfb82ff0 TR |
50 | if (!ap) |
51 | return -ENOMEM; | |
52 | ||
dedc14e2 DA |
53 | ap->ranges[0].base = pci_resource_start(pdev, 0); |
54 | ap->ranges[0].size = pci_resource_len(pdev, 0); | |
55 | ||
56 | #ifdef CONFIG_X86 | |
57 | primary = pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; | |
58 | #endif | |
59 | remove_conflicting_framebuffers(ap, "cirrusdrmfb", primary); | |
60 | kfree(ap); | |
bfb82ff0 TR |
61 | |
62 | return 0; | |
dedc14e2 DA |
63 | } |
64 | ||
56550d94 GKH |
65 | static int cirrus_pci_probe(struct pci_dev *pdev, |
66 | const struct pci_device_id *ent) | |
f9aa76a8 | 67 | { |
bfb82ff0 TR |
68 | int ret; |
69 | ||
70 | ret = cirrus_kick_out_firmware_fb(pdev); | |
71 | if (ret) | |
72 | return ret; | |
dedc14e2 | 73 | |
f9aa76a8 DA |
74 | return drm_get_pci_dev(pdev, ent, &driver); |
75 | } | |
76 | ||
77 | static void cirrus_pci_remove(struct pci_dev *pdev) | |
78 | { | |
79 | struct drm_device *dev = pci_get_drvdata(pdev); | |
80 | ||
81 | drm_put_dev(dev); | |
82 | } | |
83 | ||
8f8e7e14 | 84 | #ifdef CONFIG_PM_SLEEP |
2f1e8007 GH |
85 | static int cirrus_pm_suspend(struct device *dev) |
86 | { | |
87 | struct pci_dev *pdev = to_pci_dev(dev); | |
88 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
89 | struct cirrus_device *cdev = drm_dev->dev_private; | |
90 | ||
91 | drm_kms_helper_poll_disable(drm_dev); | |
92 | ||
93 | if (cdev->mode_info.gfbdev) { | |
94 | console_lock(); | |
2b9e6e37 | 95 | drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 1); |
2f1e8007 GH |
96 | console_unlock(); |
97 | } | |
98 | ||
99 | return 0; | |
100 | } | |
101 | ||
102 | static int cirrus_pm_resume(struct device *dev) | |
103 | { | |
104 | struct pci_dev *pdev = to_pci_dev(dev); | |
105 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
106 | struct cirrus_device *cdev = drm_dev->dev_private; | |
107 | ||
108 | drm_helper_resume_force_mode(drm_dev); | |
109 | ||
110 | if (cdev->mode_info.gfbdev) { | |
111 | console_lock(); | |
2b9e6e37 | 112 | drm_fb_helper_set_suspend(&cdev->mode_info.gfbdev->helper, 0); |
2f1e8007 GH |
113 | console_unlock(); |
114 | } | |
115 | ||
116 | drm_kms_helper_poll_enable(drm_dev); | |
117 | return 0; | |
118 | } | |
8f8e7e14 | 119 | #endif |
2f1e8007 | 120 | |
f9aa76a8 DA |
121 | static const struct file_operations cirrus_driver_fops = { |
122 | .owner = THIS_MODULE, | |
123 | .open = drm_open, | |
124 | .release = drm_release, | |
125 | .unlocked_ioctl = drm_ioctl, | |
126 | .mmap = cirrus_mmap, | |
127 | .poll = drm_poll, | |
804d74ab KP |
128 | #ifdef CONFIG_COMPAT |
129 | .compat_ioctl = drm_compat_ioctl, | |
130 | #endif | |
f9aa76a8 DA |
131 | }; |
132 | static struct drm_driver driver = { | |
28185647 | 133 | .driver_features = DRIVER_MODESET | DRIVER_GEM, |
f9aa76a8 DA |
134 | .load = cirrus_driver_load, |
135 | .unload = cirrus_driver_unload, | |
915b4d11 | 136 | .set_busid = drm_pci_set_busid, |
f9aa76a8 DA |
137 | .fops = &cirrus_driver_fops, |
138 | .name = DRIVER_NAME, | |
139 | .desc = DRIVER_DESC, | |
140 | .date = DRIVER_DATE, | |
141 | .major = DRIVER_MAJOR, | |
142 | .minor = DRIVER_MINOR, | |
143 | .patchlevel = DRIVER_PATCHLEVEL, | |
f9aa76a8 DA |
144 | .gem_free_object = cirrus_gem_free_object, |
145 | .dumb_create = cirrus_dumb_create, | |
146 | .dumb_map_offset = cirrus_dumb_mmap_offset, | |
43387b37 | 147 | .dumb_destroy = drm_gem_dumb_destroy, |
f9aa76a8 DA |
148 | }; |
149 | ||
2f1e8007 GH |
150 | static const struct dev_pm_ops cirrus_pm_ops = { |
151 | SET_SYSTEM_SLEEP_PM_OPS(cirrus_pm_suspend, | |
152 | cirrus_pm_resume) | |
153 | }; | |
154 | ||
f9aa76a8 DA |
155 | static struct pci_driver cirrus_pci_driver = { |
156 | .name = DRIVER_NAME, | |
157 | .id_table = pciidlist, | |
158 | .probe = cirrus_pci_probe, | |
159 | .remove = cirrus_pci_remove, | |
2f1e8007 | 160 | .driver.pm = &cirrus_pm_ops, |
f9aa76a8 DA |
161 | }; |
162 | ||
163 | static int __init cirrus_init(void) | |
164 | { | |
4688a69d | 165 | #ifdef CONFIG_VGA_CONSOLE |
f9aa76a8 DA |
166 | if (vgacon_text_force() && cirrus_modeset == -1) |
167 | return -EINVAL; | |
4688a69d | 168 | #endif |
f9aa76a8 DA |
169 | |
170 | if (cirrus_modeset == 0) | |
171 | return -EINVAL; | |
172 | return drm_pci_init(&driver, &cirrus_pci_driver); | |
173 | } | |
174 | ||
175 | static void __exit cirrus_exit(void) | |
176 | { | |
177 | drm_pci_exit(&driver, &cirrus_pci_driver); | |
178 | } | |
179 | ||
180 | module_init(cirrus_init); | |
181 | module_exit(cirrus_exit); | |
182 | ||
183 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
184 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
185 | MODULE_DESCRIPTION(DRIVER_DESC); | |
186 | MODULE_LICENSE("GPL"); |