1 /* vim: set ts=8 sw=8 tw=78 ai noexpandtab */
2 /* qxl_drv.c -- QXL driver -*- linux-c -*-
4 * Copyright 2011 Red Hat, Inc.
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:
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
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.
27 * Dave Airlie <airlie@redhat.com>
28 * Alon Levy <alevy@redhat.com>
32 #include <linux/console.h>
33 #include <linux/module.h>
34 #include <linux/pci.h>
37 #include <drm/drm_drv.h>
38 #include <drm/drm_file.h>
39 #include <drm/drm_modeset_helper.h>
40 #include <drm/drm_prime.h>
41 #include <drm/drm_probe_helper.h>
43 #include "qxl_object.h"
45 static const struct pci_device_id pciidlist[] = {
46 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
48 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
52 MODULE_DEVICE_TABLE(pci, pciidlist);
54 static int qxl_modeset = -1;
57 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
58 module_param_named(modeset, qxl_modeset, int, 0400);
60 MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
61 module_param_named(num_heads, qxl_num_crtc, int, 0400);
63 static struct drm_driver qxl_driver;
64 static struct pci_driver qxl_pci_driver;
67 qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
69 struct qxl_device *qdev;
72 if (pdev->revision < 4) {
73 DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
74 " use xf86-video-qxl in user mode");
75 return -EINVAL; /* TODO: ENODEV ? */
78 qdev = kzalloc(sizeof(struct qxl_device), GFP_KERNEL);
82 ret = pci_enable_device(pdev);
86 ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "qxl");
90 ret = qxl_device_init(qdev, &qxl_driver, pdev);
94 ret = qxl_modeset_init(qdev);
98 drm_kms_helper_poll_init(&qdev->ddev);
100 /* Complete initialization. */
101 ret = drm_dev_register(&qdev->ddev, ent->driver_data);
103 goto modeset_cleanup;
105 drm_fbdev_generic_setup(&qdev->ddev, 32);
109 qxl_modeset_fini(qdev);
111 qxl_device_fini(qdev);
113 pci_disable_device(pdev);
120 qxl_pci_remove(struct pci_dev *pdev)
122 struct drm_device *dev = pci_get_drvdata(pdev);
123 struct qxl_device *qdev = dev->dev_private;
125 drm_dev_unregister(dev);
127 qxl_modeset_fini(qdev);
128 qxl_device_fini(qdev);
130 dev->dev_private = NULL;
135 static const struct file_operations qxl_fops = {
136 .owner = THIS_MODULE,
138 .release = drm_release,
139 .unlocked_ioctl = drm_ioctl,
145 static int qxl_drm_freeze(struct drm_device *dev)
147 struct pci_dev *pdev = dev->pdev;
148 struct qxl_device *qdev = dev->dev_private;
151 ret = drm_mode_config_helper_suspend(dev);
155 qxl_destroy_monitors_object(qdev);
156 qxl_surf_evict(qdev);
157 qxl_vram_evict(qdev);
159 while (!qxl_check_idle(qdev->command_ring));
160 while (!qxl_check_idle(qdev->release_ring))
161 qxl_queue_garbage_collect(qdev, 1);
163 pci_save_state(pdev);
168 static int qxl_drm_resume(struct drm_device *dev, bool thaw)
170 struct qxl_device *qdev = dev->dev_private;
172 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
174 qxl_reinit_memslots(qdev);
175 qxl_ring_init_hdr(qdev->release_ring);
178 qxl_create_monitors_object(qdev);
179 return drm_mode_config_helper_resume(dev);
182 static int qxl_pm_suspend(struct device *dev)
184 struct pci_dev *pdev = to_pci_dev(dev);
185 struct drm_device *drm_dev = pci_get_drvdata(pdev);
188 error = qxl_drm_freeze(drm_dev);
192 pci_disable_device(pdev);
193 pci_set_power_state(pdev, PCI_D3hot);
197 static int qxl_pm_resume(struct device *dev)
199 struct pci_dev *pdev = to_pci_dev(dev);
200 struct drm_device *drm_dev = pci_get_drvdata(pdev);
202 pci_set_power_state(pdev, PCI_D0);
203 pci_restore_state(pdev);
204 if (pci_enable_device(pdev)) {
208 return qxl_drm_resume(drm_dev, false);
211 static int qxl_pm_thaw(struct device *dev)
213 struct pci_dev *pdev = to_pci_dev(dev);
214 struct drm_device *drm_dev = pci_get_drvdata(pdev);
216 return qxl_drm_resume(drm_dev, true);
219 static int qxl_pm_freeze(struct device *dev)
221 struct pci_dev *pdev = to_pci_dev(dev);
222 struct drm_device *drm_dev = pci_get_drvdata(pdev);
224 return qxl_drm_freeze(drm_dev);
227 static int qxl_pm_restore(struct device *dev)
229 struct pci_dev *pdev = to_pci_dev(dev);
230 struct drm_device *drm_dev = pci_get_drvdata(pdev);
231 struct qxl_device *qdev = drm_dev->dev_private;
234 return qxl_drm_resume(drm_dev, false);
237 static const struct dev_pm_ops qxl_pm_ops = {
238 .suspend = qxl_pm_suspend,
239 .resume = qxl_pm_resume,
240 .freeze = qxl_pm_freeze,
242 .poweroff = qxl_pm_freeze,
243 .restore = qxl_pm_restore,
245 static struct pci_driver qxl_pci_driver = {
247 .id_table = pciidlist,
248 .probe = qxl_pci_probe,
249 .remove = qxl_pci_remove,
250 .driver.pm = &qxl_pm_ops,
253 static struct drm_driver qxl_driver = {
254 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC,
256 .dumb_create = qxl_mode_dumb_create,
257 .dumb_map_offset = qxl_mode_dumb_mmap,
258 #if defined(CONFIG_DEBUG_FS)
259 .debugfs_init = qxl_debugfs_init,
261 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
262 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
263 .gem_prime_pin = qxl_gem_prime_pin,
264 .gem_prime_unpin = qxl_gem_prime_unpin,
265 .gem_prime_get_sg_table = qxl_gem_prime_get_sg_table,
266 .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
267 .gem_prime_vmap = qxl_gem_prime_vmap,
268 .gem_prime_vunmap = qxl_gem_prime_vunmap,
269 .gem_prime_mmap = qxl_gem_prime_mmap,
270 .gem_free_object_unlocked = qxl_gem_object_free,
271 .gem_open_object = qxl_gem_object_open,
272 .gem_close_object = qxl_gem_object_close,
274 .ioctls = qxl_ioctls,
275 .irq_handler = qxl_irq_handler,
284 static int __init qxl_init(void)
286 if (vgacon_text_force() && qxl_modeset == -1)
289 if (qxl_modeset == 0)
291 qxl_driver.num_ioctls = qxl_max_ioctls;
292 return pci_register_driver(&qxl_pci_driver);
295 static void __exit qxl_exit(void)
297 pci_unregister_driver(&qxl_pci_driver);
300 module_init(qxl_init);
301 module_exit(qxl_exit);
303 MODULE_AUTHOR(DRIVER_AUTHOR);
304 MODULE_DESCRIPTION(DRIVER_DESC);
305 MODULE_LICENSE("GPL and additional rights");