drm/qxl: make dynamic resizing work properly.
[deliverable/linux.git] / drivers / gpu / drm / qxl / qxl_drv.c
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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
37#include "qxl_drv.h"
38
39extern int qxl_max_ioctls;
40static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
41 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8,
42 0xffff00, 0 },
43 { 0x1b36, 0x100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_OTHER << 8,
44 0xffff00, 0 },
45 { 0, 0, 0 },
46};
47MODULE_DEVICE_TABLE(pci, pciidlist);
48
6d01f1f5 49static int qxl_modeset = -1;
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50
51MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
52module_param_named(modeset, qxl_modeset, int, 0400);
53
54static struct drm_driver qxl_driver;
55static struct pci_driver qxl_pci_driver;
56
57static int
58qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
59{
60 if (pdev->revision < 4) {
61 DRM_ERROR("qxl too old, doesn't support client_monitors_config,"
62 " use xf86-video-qxl in user mode");
63 return -EINVAL; /* TODO: ENODEV ? */
64 }
65 return drm_get_pci_dev(pdev, ent, &qxl_driver);
66}
67
68static void
69qxl_pci_remove(struct pci_dev *pdev)
70{
71 struct drm_device *dev = pci_get_drvdata(pdev);
72
73 drm_put_dev(dev);
74}
75
76static struct pci_driver qxl_pci_driver = {
77 .name = DRIVER_NAME,
78 .id_table = pciidlist,
79 .probe = qxl_pci_probe,
80 .remove = qxl_pci_remove,
81};
82
83static const struct file_operations qxl_fops = {
84 .owner = THIS_MODULE,
85 .open = drm_open,
86 .release = drm_release,
87 .unlocked_ioctl = drm_ioctl,
88 .poll = drm_poll,
89 .fasync = drm_fasync,
90 .mmap = qxl_mmap,
91};
92
93static struct drm_driver qxl_driver = {
94 .driver_features = DRIVER_GEM | DRIVER_MODESET |
95 DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED,
96 .dev_priv_size = 0,
97 .load = qxl_driver_load,
98 .unload = qxl_driver_unload,
99
100 .dumb_create = qxl_mode_dumb_create,
101 .dumb_map_offset = qxl_mode_dumb_mmap,
102 .dumb_destroy = qxl_mode_dumb_destroy,
103#if defined(CONFIG_DEBUG_FS)
104 .debugfs_init = qxl_debugfs_init,
105 .debugfs_cleanup = qxl_debugfs_takedown,
106#endif
107 .gem_init_object = qxl_gem_object_init,
108 .gem_free_object = qxl_gem_object_free,
109 .gem_open_object = qxl_gem_object_open,
110 .gem_close_object = qxl_gem_object_close,
111 .fops = &qxl_fops,
112 .ioctls = qxl_ioctls,
113 .irq_handler = qxl_irq_handler,
114 .name = DRIVER_NAME,
115 .desc = DRIVER_DESC,
116 .date = DRIVER_DATE,
117 .major = 0,
118 .minor = 1,
119 .patchlevel = 0,
120};
121
122static int __init qxl_init(void)
123{
124#ifdef CONFIG_VGA_CONSOLE
125 if (vgacon_text_force() && qxl_modeset == -1)
126 return -EINVAL;
127#endif
128
129 if (qxl_modeset == 0)
130 return -EINVAL;
131 qxl_driver.num_ioctls = qxl_max_ioctls;
132 return drm_pci_init(&qxl_driver, &qxl_pci_driver);
133}
134
135static void __exit qxl_exit(void)
136{
137 drm_pci_exit(&qxl_driver, &qxl_pci_driver);
138}
139
140module_init(qxl_init);
141module_exit(qxl_exit);
142
143MODULE_AUTHOR(DRIVER_AUTHOR);
144MODULE_DESCRIPTION(DRIVER_DESC);
145MODULE_LICENSE("GPL and additional rights");
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