Commit | Line | Data |
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0a6659bd GH |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License as published by | |
4 | * the Free Software Foundation; either version 2 of the License, or | |
5 | * (at your option) any later version. | |
6 | */ | |
7 | ||
8 | #include <linux/mm.h> | |
9 | #include <linux/module.h> | |
10 | #include <linux/slab.h> | |
44adece5 | 11 | #include <drm/drm_fb_helper.h> |
fcd70cd3 | 12 | #include <drm/drm_probe_helper.h> |
0a6659bd GH |
13 | |
14 | #include "bochs.h" | |
15 | ||
1acf5661 MS |
16 | static int bochs_modeset = -1; |
17 | module_param_named(modeset, bochs_modeset, int, 0444); | |
18 | MODULE_PARM_DESC(modeset, "enable/disable kernel modesetting"); | |
19 | ||
0a6659bd GH |
20 | /* ---------------------------------------------------------------------- */ |
21 | /* drm interface */ | |
22 | ||
11b3c20b | 23 | static void bochs_unload(struct drm_device *dev) |
0a6659bd GH |
24 | { |
25 | struct bochs_device *bochs = dev->dev_private; | |
26 | ||
0a6659bd GH |
27 | bochs_kms_fini(bochs); |
28 | bochs_mm_fini(bochs); | |
29 | bochs_hw_fini(dev); | |
30 | kfree(bochs); | |
31 | dev->dev_private = NULL; | |
0a6659bd GH |
32 | } |
33 | ||
7780eb9c | 34 | static int bochs_load(struct drm_device *dev) |
0a6659bd GH |
35 | { |
36 | struct bochs_device *bochs; | |
37 | int ret; | |
38 | ||
39 | bochs = kzalloc(sizeof(*bochs), GFP_KERNEL); | |
40 | if (bochs == NULL) | |
41 | return -ENOMEM; | |
42 | dev->dev_private = bochs; | |
43 | bochs->dev = dev; | |
44 | ||
7780eb9c | 45 | ret = bochs_hw_init(dev); |
0a6659bd GH |
46 | if (ret) |
47 | goto err; | |
48 | ||
49 | ret = bochs_mm_init(bochs); | |
50 | if (ret) | |
51 | goto err; | |
52 | ||
53 | ret = bochs_kms_init(bochs); | |
54 | if (ret) | |
55 | goto err; | |
56 | ||
0a6659bd GH |
57 | return 0; |
58 | ||
59 | err: | |
60 | bochs_unload(dev); | |
61 | return ret; | |
62 | } | |
63 | ||
64 | static const struct file_operations bochs_fops = { | |
65 | .owner = THIS_MODULE, | |
66 | .open = drm_open, | |
67 | .release = drm_release, | |
68 | .unlocked_ioctl = drm_ioctl, | |
0a6659bd | 69 | .compat_ioctl = drm_compat_ioctl, |
0a6659bd GH |
70 | .poll = drm_poll, |
71 | .read = drm_read, | |
72 | .llseek = no_llseek, | |
73 | .mmap = bochs_mmap, | |
74 | }; | |
75 | ||
76 | static struct drm_driver bochs_driver = { | |
132a4534 GH |
77 | .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC | |
78 | DRIVER_PRIME, | |
0a6659bd GH |
79 | .fops = &bochs_fops, |
80 | .name = "bochs-drm", | |
81 | .desc = "bochs dispi vga interface (qemu stdvga)", | |
82 | .date = "20130925", | |
83 | .major = 1, | |
84 | .minor = 0, | |
6f2c1c15 | 85 | .gem_free_object_unlocked = bochs_gem_free_object, |
0a6659bd GH |
86 | .dumb_create = bochs_dumb_create, |
87 | .dumb_map_offset = bochs_dumb_mmap_offset, | |
132a4534 GH |
88 | |
89 | .gem_prime_export = drm_gem_prime_export, | |
90 | .gem_prime_import = drm_gem_prime_import, | |
91 | .gem_prime_pin = bochs_gem_prime_pin, | |
92 | .gem_prime_unpin = bochs_gem_prime_unpin, | |
93 | .gem_prime_vmap = bochs_gem_prime_vmap, | |
94 | .gem_prime_vunmap = bochs_gem_prime_vunmap, | |
95 | .gem_prime_mmap = bochs_gem_prime_mmap, | |
0a6659bd GH |
96 | }; |
97 | ||
b8ccd70f GH |
98 | /* ---------------------------------------------------------------------- */ |
99 | /* pm interface */ | |
100 | ||
150cee9c | 101 | #ifdef CONFIG_PM_SLEEP |
b8ccd70f GH |
102 | static int bochs_pm_suspend(struct device *dev) |
103 | { | |
104 | struct pci_dev *pdev = to_pci_dev(dev); | |
105 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
b8ccd70f | 106 | |
568a4c72 | 107 | return drm_mode_config_helper_suspend(drm_dev); |
b8ccd70f GH |
108 | } |
109 | ||
110 | static int bochs_pm_resume(struct device *dev) | |
111 | { | |
112 | struct pci_dev *pdev = to_pci_dev(dev); | |
113 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
b8ccd70f | 114 | |
568a4c72 | 115 | return drm_mode_config_helper_resume(drm_dev); |
b8ccd70f | 116 | } |
150cee9c | 117 | #endif |
b8ccd70f GH |
118 | |
119 | static const struct dev_pm_ops bochs_pm_ops = { | |
120 | SET_SYSTEM_SLEEP_PM_OPS(bochs_pm_suspend, | |
121 | bochs_pm_resume) | |
122 | }; | |
123 | ||
0a6659bd GH |
124 | /* ---------------------------------------------------------------------- */ |
125 | /* pci interface */ | |
126 | ||
0a6659bd GH |
127 | static int bochs_pci_probe(struct pci_dev *pdev, |
128 | const struct pci_device_id *ent) | |
129 | { | |
7780eb9c | 130 | struct drm_device *dev; |
de595762 | 131 | unsigned long fbsize; |
0a6659bd GH |
132 | int ret; |
133 | ||
de595762 GH |
134 | fbsize = pci_resource_len(pdev, 0); |
135 | if (fbsize < 4 * 1024 * 1024) { | |
136 | DRM_ERROR("less than 4 MB video memory, ignoring device\n"); | |
137 | return -ENOMEM; | |
138 | } | |
139 | ||
77d1ed41 | 140 | ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb"); |
0a6659bd GH |
141 | if (ret) |
142 | return ret; | |
143 | ||
7780eb9c PW |
144 | dev = drm_dev_alloc(&bochs_driver, &pdev->dev); |
145 | if (IS_ERR(dev)) | |
146 | return PTR_ERR(dev); | |
147 | ||
148 | dev->pdev = pdev; | |
149 | pci_set_drvdata(pdev, dev); | |
150 | ||
151 | ret = bochs_load(dev); | |
152 | if (ret) | |
153 | goto err_free_dev; | |
154 | ||
155 | ret = drm_dev_register(dev, 0); | |
156 | if (ret) | |
157 | goto err_unload; | |
158 | ||
7a0483ac | 159 | drm_fbdev_generic_setup(dev, 32); |
7780eb9c PW |
160 | return ret; |
161 | ||
162 | err_unload: | |
163 | bochs_unload(dev); | |
164 | err_free_dev: | |
165 | drm_dev_put(dev); | |
166 | return ret; | |
0a6659bd GH |
167 | } |
168 | ||
169 | static void bochs_pci_remove(struct pci_dev *pdev) | |
170 | { | |
171 | struct drm_device *dev = pci_get_drvdata(pdev); | |
172 | ||
7780eb9c PW |
173 | drm_dev_unregister(dev); |
174 | bochs_unload(dev); | |
175 | drm_dev_put(dev); | |
0a6659bd GH |
176 | } |
177 | ||
9baa3c34 | 178 | static const struct pci_device_id bochs_pci_tbl[] = { |
0a6659bd GH |
179 | { |
180 | .vendor = 0x1234, | |
181 | .device = 0x1111, | |
caf02abf RJ |
182 | .subvendor = PCI_SUBVENDOR_ID_REDHAT_QUMRANET, |
183 | .subdevice = PCI_SUBDEVICE_ID_QEMU, | |
0a6659bd GH |
184 | .driver_data = BOCHS_QEMU_STDVGA, |
185 | }, | |
186 | { | |
187 | .vendor = 0x1234, | |
188 | .device = 0x1111, | |
189 | .subvendor = PCI_ANY_ID, | |
190 | .subdevice = PCI_ANY_ID, | |
191 | .driver_data = BOCHS_UNKNOWN, | |
192 | }, | |
193 | { /* end of list */ } | |
194 | }; | |
195 | ||
196 | static struct pci_driver bochs_pci_driver = { | |
197 | .name = "bochs-drm", | |
198 | .id_table = bochs_pci_tbl, | |
199 | .probe = bochs_pci_probe, | |
200 | .remove = bochs_pci_remove, | |
b8ccd70f | 201 | .driver.pm = &bochs_pm_ops, |
0a6659bd GH |
202 | }; |
203 | ||
204 | /* ---------------------------------------------------------------------- */ | |
205 | /* module init/exit */ | |
206 | ||
207 | static int __init bochs_init(void) | |
208 | { | |
1acf5661 MS |
209 | if (vgacon_text_force() && bochs_modeset == -1) |
210 | return -EINVAL; | |
211 | ||
212 | if (bochs_modeset == 0) | |
213 | return -EINVAL; | |
214 | ||
10631d72 | 215 | return pci_register_driver(&bochs_pci_driver); |
0a6659bd GH |
216 | } |
217 | ||
218 | static void __exit bochs_exit(void) | |
219 | { | |
10631d72 | 220 | pci_unregister_driver(&bochs_pci_driver); |
0a6659bd GH |
221 | } |
222 | ||
223 | module_init(bochs_init); | |
224 | module_exit(bochs_exit); | |
225 | ||
226 | MODULE_DEVICE_TABLE(pci, bochs_pci_tbl); | |
227 | MODULE_AUTHOR("Gerd Hoffmann <kraxel@redhat.com>"); | |
228 | MODULE_LICENSE("GPL"); |