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1 | /* |
2 | * Copyright (C) 2013-2017 Oracle Corporation | |
3 | * This file is based on ast_drv.c | |
4 | * Copyright 2012 Red Hat Inc. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation the rights to use, copy, modify, merge, publish, | |
10 | * distribute, sub license, and/or sell copies of the Software, and to | |
11 | * permit persons to whom the Software is furnished to do so, subject to | |
12 | * the following conditions: | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
18 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
19 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
20 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
21 | * | |
22 | * The above copyright notice and this permission notice (including the | |
23 | * next paragraph) shall be included in all copies or substantial portions | |
24 | * of the Software. | |
25 | * | |
26 | * Authors: Dave Airlie <airlied@redhat.com> | |
27 | * Michael Thayer <michael.thayer@oracle.com, | |
28 | * Hans de Goede <hdegoede@redhat.com> | |
29 | */ | |
30 | #include <linux/module.h> | |
31 | #include <linux/console.h> | |
32 | #include <linux/vt_kern.h> | |
33 | ||
34 | #include <drm/drmP.h> | |
35 | #include <drm/drm_crtc_helper.h> | |
36 | ||
37 | #include "vbox_drv.h" | |
38 | ||
39 | int vbox_modeset = -1; | |
40 | ||
41 | MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); | |
42 | module_param_named(modeset, vbox_modeset, int, 0400); | |
43 | ||
44 | static struct drm_driver driver; | |
45 | ||
46 | static const struct pci_device_id pciidlist[] = { | |
47 | { 0x80ee, 0xbeef, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, | |
48 | { 0, 0, 0}, | |
49 | }; | |
50 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
51 | ||
52 | static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
53 | { | |
54 | return drm_get_pci_dev(pdev, ent, &driver); | |
55 | } | |
56 | ||
57 | static void vbox_pci_remove(struct pci_dev *pdev) | |
58 | { | |
59 | struct drm_device *dev = pci_get_drvdata(pdev); | |
60 | ||
61 | drm_put_dev(dev); | |
62 | } | |
63 | ||
64 | static int vbox_drm_freeze(struct drm_device *dev) | |
65 | { | |
66 | struct vbox_private *vbox = dev->dev_private; | |
67 | ||
68 | drm_kms_helper_poll_disable(dev); | |
69 | ||
70 | pci_save_state(dev->pdev); | |
71 | ||
72 | drm_fb_helper_set_suspend_unlocked(&vbox->fbdev->helper, true); | |
73 | ||
74 | return 0; | |
75 | } | |
76 | ||
77 | static int vbox_drm_thaw(struct drm_device *dev) | |
78 | { | |
79 | struct vbox_private *vbox = dev->dev_private; | |
80 | ||
81 | drm_mode_config_reset(dev); | |
82 | drm_helper_resume_force_mode(dev); | |
83 | drm_fb_helper_set_suspend_unlocked(&vbox->fbdev->helper, false); | |
84 | ||
85 | return 0; | |
86 | } | |
87 | ||
88 | static int vbox_drm_resume(struct drm_device *dev) | |
89 | { | |
90 | int ret; | |
91 | ||
92 | if (pci_enable_device(dev->pdev)) | |
93 | return -EIO; | |
94 | ||
95 | ret = vbox_drm_thaw(dev); | |
96 | if (ret) | |
97 | return ret; | |
98 | ||
99 | drm_kms_helper_poll_enable(dev); | |
100 | ||
101 | return 0; | |
102 | } | |
103 | ||
104 | static int vbox_pm_suspend(struct device *dev) | |
105 | { | |
106 | struct pci_dev *pdev = to_pci_dev(dev); | |
107 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
108 | int error; | |
109 | ||
110 | error = vbox_drm_freeze(ddev); | |
111 | if (error) | |
112 | return error; | |
113 | ||
114 | pci_disable_device(pdev); | |
115 | pci_set_power_state(pdev, PCI_D3hot); | |
116 | ||
117 | return 0; | |
118 | } | |
119 | ||
120 | static int vbox_pm_resume(struct device *dev) | |
121 | { | |
122 | struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); | |
123 | ||
124 | return vbox_drm_resume(ddev); | |
125 | } | |
126 | ||
127 | static int vbox_pm_freeze(struct device *dev) | |
128 | { | |
129 | struct pci_dev *pdev = to_pci_dev(dev); | |
130 | struct drm_device *ddev = pci_get_drvdata(pdev); | |
131 | ||
132 | if (!ddev || !ddev->dev_private) | |
133 | return -ENODEV; | |
134 | ||
135 | return vbox_drm_freeze(ddev); | |
136 | } | |
137 | ||
138 | static int vbox_pm_thaw(struct device *dev) | |
139 | { | |
140 | struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); | |
141 | ||
142 | return vbox_drm_thaw(ddev); | |
143 | } | |
144 | ||
145 | static int vbox_pm_poweroff(struct device *dev) | |
146 | { | |
147 | struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev)); | |
148 | ||
149 | return vbox_drm_freeze(ddev); | |
150 | } | |
151 | ||
152 | static const struct dev_pm_ops vbox_pm_ops = { | |
153 | .suspend = vbox_pm_suspend, | |
154 | .resume = vbox_pm_resume, | |
155 | .freeze = vbox_pm_freeze, | |
156 | .thaw = vbox_pm_thaw, | |
157 | .poweroff = vbox_pm_poweroff, | |
158 | .restore = vbox_pm_resume, | |
159 | }; | |
160 | ||
161 | static struct pci_driver vbox_pci_driver = { | |
162 | .name = DRIVER_NAME, | |
163 | .id_table = pciidlist, | |
164 | .probe = vbox_pci_probe, | |
165 | .remove = vbox_pci_remove, | |
166 | .driver.pm = &vbox_pm_ops, | |
167 | }; | |
168 | ||
169 | static const struct file_operations vbox_fops = { | |
170 | .owner = THIS_MODULE, | |
171 | .open = drm_open, | |
172 | .release = drm_release, | |
173 | .unlocked_ioctl = drm_ioctl, | |
174 | .mmap = vbox_mmap, | |
175 | .poll = drm_poll, | |
176 | #ifdef CONFIG_COMPAT | |
177 | .compat_ioctl = drm_compat_ioctl, | |
178 | #endif | |
179 | .read = drm_read, | |
180 | }; | |
181 | ||
182 | static int vbox_master_set(struct drm_device *dev, | |
183 | struct drm_file *file_priv, bool from_open) | |
184 | { | |
185 | struct vbox_private *vbox = dev->dev_private; | |
186 | ||
187 | /* | |
188 | * We do not yet know whether the new owner can handle hotplug, so we | |
189 | * do not advertise dynamic modes on the first query and send a | |
190 | * tentative hotplug notification after that to see if they query again. | |
191 | */ | |
192 | vbox->initial_mode_queried = false; | |
193 | ||
194 | mutex_lock(&vbox->hw_mutex); | |
195 | /* | |
196 | * Disable VBVA when someone releases master in case the next person | |
197 | * tries tries to do VESA. | |
198 | */ | |
199 | /** @todo work out if anyone is likely to and whether it will work. */ | |
200 | /* | |
201 | * Update: we also disable it because if the new master does not do | |
202 | * dirty rectangle reporting (e.g. old versions of Plymouth) then at | |
203 | * least the first screen will still be updated. We enable it as soon | |
204 | * as we receive a dirty rectangle report. | |
205 | */ | |
206 | vbox_disable_accel(vbox); | |
207 | mutex_unlock(&vbox->hw_mutex); | |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
212 | static void vbox_master_drop(struct drm_device *dev, struct drm_file *file_priv) | |
213 | { | |
214 | struct vbox_private *vbox = dev->dev_private; | |
215 | ||
216 | /* See vbox_master_set() */ | |
217 | vbox->initial_mode_queried = false; | |
218 | ||
219 | mutex_lock(&vbox->hw_mutex); | |
220 | vbox_disable_accel(vbox); | |
221 | mutex_unlock(&vbox->hw_mutex); | |
222 | } | |
223 | ||
224 | static struct drm_driver driver = { | |
225 | .driver_features = | |
226 | DRIVER_MODESET | DRIVER_GEM | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | | |
227 | DRIVER_PRIME, | |
228 | .dev_priv_size = 0, | |
229 | ||
230 | .load = vbox_driver_load, | |
231 | .unload = vbox_driver_unload, | |
232 | .lastclose = vbox_driver_lastclose, | |
233 | .master_set = vbox_master_set, | |
234 | .master_drop = vbox_master_drop, | |
235 | .set_busid = drm_pci_set_busid, | |
236 | ||
237 | .fops = &vbox_fops, | |
238 | .irq_handler = vbox_irq_handler, | |
239 | .name = DRIVER_NAME, | |
240 | .desc = DRIVER_DESC, | |
241 | .date = DRIVER_DATE, | |
242 | .major = DRIVER_MAJOR, | |
243 | .minor = DRIVER_MINOR, | |
244 | .patchlevel = DRIVER_PATCHLEVEL, | |
245 | ||
246 | .gem_free_object = vbox_gem_free_object, | |
247 | .dumb_create = vbox_dumb_create, | |
248 | .dumb_map_offset = vbox_dumb_mmap_offset, | |
249 | .dumb_destroy = drm_gem_dumb_destroy, | |
250 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, | |
251 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
252 | .gem_prime_export = drm_gem_prime_export, | |
253 | .gem_prime_import = drm_gem_prime_import, | |
254 | .gem_prime_pin = vbox_gem_prime_pin, | |
255 | .gem_prime_unpin = vbox_gem_prime_unpin, | |
256 | .gem_prime_get_sg_table = vbox_gem_prime_get_sg_table, | |
257 | .gem_prime_import_sg_table = vbox_gem_prime_import_sg_table, | |
258 | .gem_prime_vmap = vbox_gem_prime_vmap, | |
259 | .gem_prime_vunmap = vbox_gem_prime_vunmap, | |
260 | .gem_prime_mmap = vbox_gem_prime_mmap, | |
261 | }; | |
262 | ||
263 | static int __init vbox_init(void) | |
264 | { | |
265 | #ifdef CONFIG_VGA_CONSOLE | |
266 | if (vgacon_text_force() && vbox_modeset == -1) | |
267 | return -EINVAL; | |
268 | #endif | |
269 | ||
270 | if (vbox_modeset == 0) | |
271 | return -EINVAL; | |
272 | ||
273 | return drm_pci_init(&driver, &vbox_pci_driver); | |
274 | } | |
275 | ||
276 | static void __exit vbox_exit(void) | |
277 | { | |
278 | drm_pci_exit(&driver, &vbox_pci_driver); | |
279 | } | |
280 | ||
281 | module_init(vbox_init); | |
282 | module_exit(vbox_exit); | |
283 | ||
284 | MODULE_AUTHOR("Oracle Corporation"); | |
285 | MODULE_DESCRIPTION(DRIVER_DESC); | |
286 | MODULE_LICENSE("GPL and additional rights"); |