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1/* qxl_drv.c -- QXL driver -*- linux-c -*-
2 *
3 * Copyright 2011 Red Hat, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
15 * Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
24 *
25 * Authors:
26 * Dave Airlie <airlie@redhat.com>
27 * Alon Levy <alevy@redhat.com>
28 */
29
30#include "qxl_drv.h"
31
32#include <linux/aperture.h>
33#include <linux/module.h>
34#include <linux/pci.h>
35#include <linux/vgaarb.h>
36
37#include <drm/drm.h>
38#include <drm/drm_atomic_helper.h>
39#include <drm/drm_client_setup.h>
40#include <drm/drm_drv.h>
41#include <drm/drm_fbdev_ttm.h>
42#include <drm/drm_file.h>
43#include <drm/drm_gem_ttm_helper.h>
44#include <drm/drm_module.h>
45#include <drm/drm_modeset_helper.h>
46#include <drm/drm_prime.h>
47#include <drm/drm_probe_helper.h>
48
49#include "qxl_object.h"
50
51static const struct pci_device_id pciidlist[] = {
52 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
53 0xffff00, 0 },
54 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
55 0xffff00, 0 },
56 { 0, 0, 0 },
57};
58MODULE_DEVICE_TABLE(pci, pciidlist);
59
60static int qxl_modeset = -1;
61int qxl_num_crtc = 4;
62
63MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
64module_param_named(modeset, qxl_modeset, int, 0400);
65
66MODULE_PARM_DESC(num_heads, "Number of virtual crtcs to expose (default 4)");
67module_param_named(num_heads, qxl_num_crtc, int, 0400);
68
69static struct drm_driver qxl_driver;
70static struct pci_driver qxl_pci_driver;
71
72static int
73qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
74{
75 struct qxl_device *qdev;
76 int ret;
77
78 if (pdev->revision < 4) {
79 DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
80 " use xf86-video-qxl in user mode");
81 return -EINVAL; /* TODO: ENODEV ? */
82 }
83
84 qdev = devm_drm_dev_alloc(&pdev->dev, &qxl_driver,
85 struct qxl_device, ddev);
86 if (IS_ERR(qdev)) {
87 pr_err("Unable to init drm dev");
88 return -ENOMEM;
89 }
90
91 ret = pci_enable_device(pdev);
92 if (ret)
93 return ret;
94
95 ret = aperture_remove_conflicting_pci_devices(pdev, qxl_driver.name);
96 if (ret)
97 goto disable_pci;
98
99 if (pci_is_vga(pdev) && pdev->revision < 5) {
100 ret = vga_get_interruptible(pdev, VGA_RSRC_LEGACY_IO);
101 if (ret) {
102 DRM_ERROR("can't get legacy vga ioports\n");
103 goto disable_pci;
104 }
105 }
106
107 ret = qxl_device_init(qdev, pdev);
108 if (ret)
109 goto put_vga;
110
111 ret = qxl_modeset_init(qdev);
112 if (ret)
113 goto unload;
114
115 drm_kms_helper_poll_init(&qdev->ddev);
116
117 /* Complete initialization. */
118 ret = drm_dev_register(&qdev->ddev, ent->driver_data);
119 if (ret)
120 goto modeset_cleanup;
121
122 drm_client_setup(&qdev->ddev, NULL);
123 return 0;
124
125modeset_cleanup:
126 qxl_modeset_fini(qdev);
127unload:
128 qxl_device_fini(qdev);
129put_vga:
130 if (pci_is_vga(pdev) && pdev->revision < 5)
131 vga_put(pdev, VGA_RSRC_LEGACY_IO);
132disable_pci:
133 pci_disable_device(pdev);
134
135 return ret;
136}
137
138static void qxl_drm_release(struct drm_device *dev)
139{
140 struct qxl_device *qdev = to_qxl(dev);
141
142 /*
143 * TODO: qxl_device_fini() call should be in qxl_pci_remove(),
144 * reordering qxl_modeset_fini() + qxl_device_fini() calls is
145 * non-trivial though.
146 */
147 qxl_modeset_fini(qdev);
148 qxl_device_fini(qdev);
149}
150
151static void
152qxl_pci_remove(struct pci_dev *pdev)
153{
154 struct drm_device *dev = pci_get_drvdata(pdev);
155
156 drm_dev_unregister(dev);
157 drm_atomic_helper_shutdown(dev);
158 if (pci_is_vga(pdev) && pdev->revision < 5)
159 vga_put(pdev, VGA_RSRC_LEGACY_IO);
160}
161
162static void
163qxl_pci_shutdown(struct pci_dev *pdev)
164{
165 drm_atomic_helper_shutdown(pci_get_drvdata(pdev));
166}
167
168DEFINE_DRM_GEM_FOPS(qxl_fops);
169
170static int qxl_drm_freeze(struct drm_device *dev)
171{
172 struct pci_dev *pdev = to_pci_dev(dev->dev);
173 struct qxl_device *qdev = to_qxl(dev);
174 int ret;
175
176 ret = drm_mode_config_helper_suspend(dev);
177 if (ret)
178 return ret;
179
180 qxl_destroy_monitors_object(qdev);
181 qxl_surf_evict(qdev);
182 qxl_vram_evict(qdev);
183
184 while (!qxl_check_idle(qdev->command_ring));
185 while (!qxl_check_idle(qdev->release_ring))
186 qxl_queue_garbage_collect(qdev, 1);
187
188 pci_save_state(pdev);
189
190 return 0;
191}
192
193static int qxl_drm_resume(struct drm_device *dev, bool thaw)
194{
195 struct qxl_device *qdev = to_qxl(dev);
196
197 qdev->ram_header->int_mask = QXL_INTERRUPT_MASK;
198 if (!thaw) {
199 qxl_reinit_memslots(qdev);
200 }
201
202 qxl_create_monitors_object(qdev);
203 return drm_mode_config_helper_resume(dev);
204}
205
206static int qxl_pm_suspend(struct device *dev)
207{
208 struct pci_dev *pdev = to_pci_dev(dev);
209 struct drm_device *drm_dev = pci_get_drvdata(pdev);
210 int error;
211
212 error = qxl_drm_freeze(drm_dev);
213 if (error)
214 return error;
215
216 pci_disable_device(pdev);
217 pci_set_power_state(pdev, PCI_D3hot);
218 return 0;
219}
220
221static int qxl_pm_resume(struct device *dev)
222{
223 struct pci_dev *pdev = to_pci_dev(dev);
224 struct drm_device *drm_dev = pci_get_drvdata(pdev);
225 struct qxl_device *qdev = to_qxl(drm_dev);
226
227 pci_set_power_state(pdev, PCI_D0);
228 pci_restore_state(pdev);
229 if (pci_enable_device(pdev)) {
230 return -EIO;
231 }
232
233 qxl_io_reset(qdev);
234 return qxl_drm_resume(drm_dev, false);
235}
236
237static int qxl_pm_thaw(struct device *dev)
238{
239 struct drm_device *drm_dev = dev_get_drvdata(dev);
240
241 return qxl_drm_resume(drm_dev, true);
242}
243
244static int qxl_pm_freeze(struct device *dev)
245{
246 struct drm_device *drm_dev = dev_get_drvdata(dev);
247
248 return qxl_drm_freeze(drm_dev);
249}
250
251static int qxl_pm_restore(struct device *dev)
252{
253 struct pci_dev *pdev = to_pci_dev(dev);
254 struct drm_device *drm_dev = pci_get_drvdata(pdev);
255 struct qxl_device *qdev = to_qxl(drm_dev);
256
257 qxl_io_reset(qdev);
258 return qxl_drm_resume(drm_dev, false);
259}
260
261static const struct dev_pm_ops qxl_pm_ops = {
262 .suspend = qxl_pm_suspend,
263 .resume = qxl_pm_resume,
264 .freeze = qxl_pm_freeze,
265 .thaw = qxl_pm_thaw,
266 .poweroff = qxl_pm_freeze,
267 .restore = qxl_pm_restore,
268};
269static struct pci_driver qxl_pci_driver = {
270 .name = DRIVER_NAME,
271 .id_table = pciidlist,
272 .probe = qxl_pci_probe,
273 .remove = qxl_pci_remove,
274 .shutdown = qxl_pci_shutdown,
275 .driver.pm = &qxl_pm_ops,
276};
277
278static const struct drm_ioctl_desc qxl_ioctls[] = {
279 DRM_IOCTL_DEF_DRV(QXL_ALLOC, qxl_alloc_ioctl, DRM_AUTH),
280 DRM_IOCTL_DEF_DRV(QXL_MAP, qxl_map_ioctl, DRM_AUTH),
281 DRM_IOCTL_DEF_DRV(QXL_EXECBUFFER, qxl_execbuffer_ioctl, DRM_AUTH),
282 DRM_IOCTL_DEF_DRV(QXL_UPDATE_AREA, qxl_update_area_ioctl, DRM_AUTH),
283 DRM_IOCTL_DEF_DRV(QXL_GETPARAM, qxl_getparam_ioctl, DRM_AUTH),
284 DRM_IOCTL_DEF_DRV(QXL_CLIENTCAP, qxl_clientcap_ioctl, DRM_AUTH),
285 DRM_IOCTL_DEF_DRV(QXL_ALLOC_SURF, qxl_alloc_surf_ioctl, DRM_AUTH),
286};
287
288static struct drm_driver qxl_driver = {
289 .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC | DRIVER_CURSOR_HOTSPOT,
290
291 .dumb_create = qxl_mode_dumb_create,
292 .dumb_map_offset = drm_gem_ttm_dumb_map_offset,
293#if defined(CONFIG_DEBUG_FS)
294 .debugfs_init = qxl_debugfs_init,
295#endif
296 .gem_prime_import_sg_table = qxl_gem_prime_import_sg_table,
297 DRM_FBDEV_TTM_DRIVER_OPS,
298 .fops = &qxl_fops,
299 .ioctls = qxl_ioctls,
300 .num_ioctls = ARRAY_SIZE(qxl_ioctls),
301 .name = DRIVER_NAME,
302 .desc = DRIVER_DESC,
303 .date = DRIVER_DATE,
304 .major = 0,
305 .minor = 1,
306 .patchlevel = 0,
307
308 .release = qxl_drm_release,
309};
310
311drm_module_pci_driver_if_modeset(qxl_pci_driver, qxl_modeset);
312
313MODULE_AUTHOR(DRIVER_AUTHOR);
314MODULE_DESCRIPTION(DRIVER_DESC);
315MODULE_LICENSE("GPL and additional rights");