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f64122c1 DA |
1 | /* vim: set ts=8 sw=8 tw=78 ai noexpandtab */ |
2 | /* qxl_drv.c -- QXL driver -*- linux-c -*- | |
3 | * | |
4 | * Copyright 2011 Red Hat, Inc. | |
5 | * All Rights Reserved. | |
6 | * | |
7 | * Permission is hereby granted, free of charge, to any person obtaining a | |
8 | * copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation | |
10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
11 | * and/or sell copies of the Software, and to permit persons to whom the | |
12 | * Software is furnished to do so, subject to the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the next | |
15 | * paragraph) shall be included in all copies or substantial portions of the | |
16 | * Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
21 | * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
22 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
23 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
24 | * OTHER DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | * Authors: | |
27 | * Dave Airlie <airlie@redhat.com> | |
28 | * Alon Levy <alevy@redhat.com> | |
29 | */ | |
30 | ||
31 | #include <linux/module.h> | |
32 | #include <linux/console.h> | |
33 | ||
34 | #include "drmP.h" | |
35 | #include "drm/drm.h" | |
d84300bf | 36 | #include "drm_crtc_helper.h" |
f64122c1 | 37 | #include "qxl_drv.h" |
d84300bf | 38 | #include "qxl_object.h" |
f64122c1 DA |
39 | |
40 | extern int qxl_max_ioctls; | |
41 | static DEFINE_PCI_DEVICE_TABLE(pciidlist) = { | |
42 | { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, | |
43 | 0xffff00, 0 }, | |
44 | { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8, | |
45 | 0xffff00, 0 }, | |
46 | { 0, 0, 0 }, | |
47 | }; | |
48 | MODULE_DEVICE_TABLE(pci, pciidlist); | |
49 | ||
6d01f1f5 | 50 | static int qxl_modeset = -1; |
07f8d9bd | 51 | int qxl_num_crtc = 4; |
f64122c1 DA |
52 | |
53 | MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); | |
54 | module_param_named(modeset, qxl_modeset, int, 0400); | |
55 | ||
07f8d9bd DA |
56 | MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)"); |
57 | module_param_named(num_heads, qxl_num_crtc, int, 0400); | |
58 | ||
f64122c1 DA |
59 | static struct drm_driver qxl_driver; |
60 | static struct pci_driver qxl_pci_driver; | |
61 | ||
62 | static int | |
63 | qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
64 | { | |
65 | if (pdev->revision < 4) { | |
66 | DRM_ERROR("qxl too old, doesn't support client_monitors_config," | |
67 | " use xf86-video-qxl in user mode"); | |
68 | return -EINVAL; /* TODO: ENODEV ? */ | |
69 | } | |
70 | return drm_get_pci_dev(pdev, ent, &qxl_driver); | |
71 | } | |
72 | ||
73 | static void | |
74 | qxl_pci_remove(struct pci_dev *pdev) | |
75 | { | |
76 | struct drm_device *dev = pci_get_drvdata(pdev); | |
77 | ||
78 | drm_put_dev(dev); | |
79 | } | |
80 | ||
f64122c1 DA |
81 | static const struct file_operations qxl_fops = { |
82 | .owner = THIS_MODULE, | |
83 | .open = drm_open, | |
84 | .release = drm_release, | |
85 | .unlocked_ioctl = drm_ioctl, | |
86 | .poll = drm_poll, | |
87 | .fasync = drm_fasync, | |
88 | .mmap = qxl_mmap, | |
89 | }; | |
90 | ||
d84300bf DA |
91 | static int qxl_drm_freeze(struct drm_device *dev) |
92 | { | |
93 | struct pci_dev *pdev = dev->pdev; | |
94 | struct qxl_device *qdev = dev->dev_private; | |
95 | struct drm_crtc *crtc; | |
96 | ||
97 | drm_kms_helper_poll_disable(dev); | |
98 | ||
99 | console_lock(); | |
100 | qxl_fbdev_set_suspend(qdev, 1); | |
101 | console_unlock(); | |
102 | ||
103 | /* unpin the front buffers */ | |
104 | list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { | |
105 | struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private; | |
106 | if (crtc->enabled) | |
107 | (*crtc_funcs->disable)(crtc); | |
108 | } | |
109 | ||
110 | qxl_destroy_monitors_object(qdev); | |
111 | qxl_surf_evict(qdev); | |
112 | qxl_vram_evict(qdev); | |
113 | ||
114 | while (!qxl_check_idle(qdev->command_ring)); | |
115 | while (!qxl_check_idle(qdev->release_ring)) | |
116 | qxl_queue_garbage_collect(qdev, 1); | |
117 | ||
118 | pci_save_state(pdev); | |
119 | ||
120 | return 0; | |
121 | } | |
122 | ||
123 | static int qxl_drm_resume(struct drm_device *dev, bool thaw) | |
124 | { | |
125 | struct qxl_device *qdev = dev->dev_private; | |
126 | ||
127 | qdev->ram_header->int_mask = QXL_INTERRUPT_MASK; | |
128 | if (!thaw) { | |
129 | qxl_reinit_memslots(qdev); | |
130 | qxl_ring_init_hdr(qdev->release_ring); | |
131 | } | |
132 | ||
133 | qxl_create_monitors_object(qdev); | |
134 | drm_helper_resume_force_mode(dev); | |
135 | ||
136 | console_lock(); | |
137 | qxl_fbdev_set_suspend(qdev, 0); | |
138 | console_unlock(); | |
139 | ||
140 | drm_kms_helper_poll_enable(dev); | |
141 | return 0; | |
142 | } | |
143 | ||
144 | static int qxl_pm_suspend(struct device *dev) | |
145 | { | |
146 | struct pci_dev *pdev = to_pci_dev(dev); | |
147 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
148 | int error; | |
149 | ||
150 | error = qxl_drm_freeze(drm_dev); | |
151 | if (error) | |
152 | return error; | |
153 | ||
154 | pci_disable_device(pdev); | |
155 | pci_set_power_state(pdev, PCI_D3hot); | |
156 | return 0; | |
157 | } | |
158 | ||
159 | static int qxl_pm_resume(struct device *dev) | |
160 | { | |
161 | struct pci_dev *pdev = to_pci_dev(dev); | |
162 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
163 | ||
164 | pci_set_power_state(pdev, PCI_D0); | |
165 | pci_restore_state(pdev); | |
166 | if (pci_enable_device(pdev)) { | |
167 | return -EIO; | |
168 | } | |
169 | ||
170 | return qxl_drm_resume(drm_dev, false); | |
171 | } | |
172 | ||
173 | static int qxl_pm_thaw(struct device *dev) | |
174 | { | |
175 | struct pci_dev *pdev = to_pci_dev(dev); | |
176 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
177 | ||
178 | return qxl_drm_resume(drm_dev, true); | |
179 | } | |
180 | ||
181 | static int qxl_pm_freeze(struct device *dev) | |
182 | { | |
183 | struct pci_dev *pdev = to_pci_dev(dev); | |
184 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
185 | ||
186 | return qxl_drm_freeze(drm_dev); | |
187 | } | |
188 | ||
189 | static int qxl_pm_restore(struct device *dev) | |
190 | { | |
191 | struct pci_dev *pdev = to_pci_dev(dev); | |
192 | struct drm_device *drm_dev = pci_get_drvdata(pdev); | |
193 | struct qxl_device *qdev = drm_dev->dev_private; | |
194 | ||
195 | qxl_io_reset(qdev); | |
196 | return qxl_drm_resume(drm_dev, false); | |
197 | } | |
198 | ||
199 | static const struct dev_pm_ops qxl_pm_ops = { | |
200 | .suspend = qxl_pm_suspend, | |
201 | .resume = qxl_pm_resume, | |
202 | .freeze = qxl_pm_freeze, | |
203 | .thaw = qxl_pm_thaw, | |
204 | .poweroff = qxl_pm_freeze, | |
205 | .restore = qxl_pm_restore, | |
206 | }; | |
207 | static struct pci_driver qxl_pci_driver = { | |
208 | .name = DRIVER_NAME, | |
209 | .id_table = pciidlist, | |
210 | .probe = qxl_pci_probe, | |
211 | .remove = qxl_pci_remove, | |
212 | .driver.pm = &qxl_pm_ops, | |
213 | }; | |
214 | ||
f64122c1 DA |
215 | static struct drm_driver qxl_driver = { |
216 | .driver_features = DRIVER_GEM | DRIVER_MODESET | | |
217 | DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED, | |
218 | .dev_priv_size = 0, | |
219 | .load = qxl_driver_load, | |
220 | .unload = qxl_driver_unload, | |
221 | ||
222 | .dumb_create = qxl_mode_dumb_create, | |
223 | .dumb_map_offset = qxl_mode_dumb_mmap, | |
224 | .dumb_destroy = qxl_mode_dumb_destroy, | |
225 | #if defined(CONFIG_DEBUG_FS) | |
226 | .debugfs_init = qxl_debugfs_init, | |
227 | .debugfs_cleanup = qxl_debugfs_takedown, | |
228 | #endif | |
229 | .gem_init_object = qxl_gem_object_init, | |
230 | .gem_free_object = qxl_gem_object_free, | |
231 | .gem_open_object = qxl_gem_object_open, | |
232 | .gem_close_object = qxl_gem_object_close, | |
233 | .fops = &qxl_fops, | |
234 | .ioctls = qxl_ioctls, | |
235 | .irq_handler = qxl_irq_handler, | |
236 | .name = DRIVER_NAME, | |
237 | .desc = DRIVER_DESC, | |
238 | .date = DRIVER_DATE, | |
239 | .major = 0, | |
240 | .minor = 1, | |
241 | .patchlevel = 0, | |
242 | }; | |
243 | ||
244 | static int __init qxl_init(void) | |
245 | { | |
246 | #ifdef CONFIG_VGA_CONSOLE | |
247 | if (vgacon_text_force() && qxl_modeset == -1) | |
248 | return -EINVAL; | |
249 | #endif | |
250 | ||
251 | if (qxl_modeset == 0) | |
252 | return -EINVAL; | |
253 | qxl_driver.num_ioctls = qxl_max_ioctls; | |
254 | return drm_pci_init(&qxl_driver, &qxl_pci_driver); | |
255 | } | |
256 | ||
257 | static void __exit qxl_exit(void) | |
258 | { | |
259 | drm_pci_exit(&qxl_driver, &qxl_pci_driver); | |
260 | } | |
261 | ||
262 | module_init(qxl_init); | |
263 | module_exit(qxl_exit); | |
264 | ||
265 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
266 | MODULE_DESCRIPTION(DRIVER_DESC); | |
267 | MODULE_LICENSE("GPL and additional rights"); |