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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"
36#include "drm_crtc_helper.h"
37#include "qxl_drv.h"
38#include "qxl_object.h"
39
40extern int qxl_max_ioctls;
41static const struct pci_device_id 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};
48MODULE_DEVICE_TABLE(pci, pciidlist);
49
50static int qxl_modeset = -1;
51int qxl_num_crtc = 4;
52
53MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
54module_param_named(modeset, qxl_modeset, int, 0400);
55
56MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
57module_param_named(num_heads, qxl_num_crtc, int, 0400);
58
59static struct drm_driver qxl_driver;
60static struct pci_driver qxl_pci_driver;
61
62static int
63qxl_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
73static void
74qxl_pci_remove(struct pci_dev *pdev)
75{
76 struct drm_device *dev = pci_get_drvdata(pdev);
77
78 drm_put_dev(dev);
79}
80
81static 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 .read = drm_read,
88 .mmap = qxl_mmap,
89};
90
91static 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 const 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
123static 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
144static 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
159static 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
173static 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
181static 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
189static 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
199static u32 qxl_noop_get_vblank_counter(struct drm_device *dev,
200 unsigned int pipe)
201{
202 return 0;
203}
204
205static int qxl_noop_enable_vblank(struct drm_device *dev, unsigned int pipe)
206{
207 return 0;
208}
209
210static void qxl_noop_disable_vblank(struct drm_device *dev, unsigned int pipe)
211{
212}
213
214static const struct dev_pm_ops qxl_pm_ops = {
215 .suspend = qxl_pm_suspend,
216 .resume = qxl_pm_resume,
217 .freeze = qxl_pm_freeze,
218 .thaw = qxl_pm_thaw,
219 .poweroff = qxl_pm_freeze,
220 .restore = qxl_pm_restore,
221};
222static struct pci_driver qxl_pci_driver = {
223 .name = DRIVER_NAME,
224 .id_table = pciidlist,
225 .probe = qxl_pci_probe,
226 .remove = qxl_pci_remove,
227 .driver.pm = &qxl_pm_ops,
228};
229
230static struct drm_driver qxl_driver = {
231 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_PRIME |
232 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
233 .load = qxl_driver_load,
234 .unload = qxl_driver_unload,
235 .get_vblank_counter = qxl_noop_get_vblank_counter,
236 .enable_vblank = qxl_noop_enable_vblank,
237 .disable_vblank = qxl_noop_disable_vblank,
238
239 .set_busid = drm_pci_set_busid,
240
241 .dumb_create = qxl_mode_dumb_create,
242 .dumb_map_offset = qxl_mode_dumb_mmap,
243 .dumb_destroy = drm_gem_dumb_destroy,
244#if defined(CONFIG_DEBUG_FS)
245 .debugfs_init = qxl_debugfs_init,
246 .debugfs_cleanup = qxl_debugfs_takedown,
247#endif
248 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
249 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
250 .gem_prime_export = drm_gem_prime_export,
251 .gem_prime_import = drm_gem_prime_import,
252 .gem_prime_pin = qxl_gem_prime_pin,
253 .gem_prime_unpin = qxl_gem_prime_unpin,
254 .gem_prime_get_sg_table = qxl_gem_prime_get_sg_table,
255 .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
256 .gem_prime_vmap = qxl_gem_prime_vmap,
257 .gem_prime_vunmap = qxl_gem_prime_vunmap,
258 .gem_prime_mmap = qxl_gem_prime_mmap,
259 .gem_free_object = qxl_gem_object_free,
260 .gem_open_object = qxl_gem_object_open,
261 .gem_close_object = qxl_gem_object_close,
262 .fops = &qxl_fops,
263 .ioctls = qxl_ioctls,
264 .irq_handler = qxl_irq_handler,
265 .name = DRIVER_NAME,
266 .desc = DRIVER_DESC,
267 .date = DRIVER_DATE,
268 .major = 0,
269 .minor = 1,
270 .patchlevel = 0,
271};
272
273static int __init qxl_init(void)
274{
275#ifdef CONFIG_VGA_CONSOLE
276 if (vgacon_text_force() && qxl_modeset == -1)
277 return -EINVAL;
278#endif
279
280 if (qxl_modeset == 0)
281 return -EINVAL;
282 qxl_driver.num_ioctls = qxl_max_ioctls;
283 return drm_pci_init(&qxl_driver, &qxl_pci_driver);
284}
285
286static void __exit qxl_exit(void)
287{
288 drm_pci_exit(&qxl_driver, &qxl_pci_driver);
289}
290
291module_init(qxl_init);
292module_exit(qxl_exit);
293
294MODULE_AUTHOR(DRIVER_AUTHOR);
295MODULE_DESCRIPTION(DRIVER_DESC);
296MODULE_LICENSE("GPL and additional rights");