2 * Copyright (C) 2015 Red Hat, Inc.
6 * Dave Airlie <airlied@redhat.com>
7 * Gerd Hoffmann <kraxel@redhat.com>
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice (including the next
17 * paragraph) shall be included in all copies or substantial portions of the
20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
23 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
24 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
25 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
29 #include <linux/module.h>
30 #include <linux/console.h>
31 #include <linux/pci.h>
35 #include "virtgpu_drv.h"
36 static struct drm_driver driver;
38 static int virtio_gpu_modeset = -1;
40 MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
41 module_param_named(modeset, virtio_gpu_modeset, int, 0400);
43 static int virtio_gpu_probe(struct virtio_device *vdev)
45 #ifdef CONFIG_VGA_CONSOLE
46 if (vgacon_text_force() && virtio_gpu_modeset == -1)
50 if (virtio_gpu_modeset == 0)
53 return drm_virtio_init(&driver, vdev);
56 static void virtio_gpu_remove(struct virtio_device *vdev)
58 struct drm_device *dev = vdev->priv;
62 static void virtio_gpu_config_changed(struct virtio_device *vdev)
64 struct drm_device *dev = vdev->priv;
65 struct virtio_gpu_device *vgdev = dev->dev_private;
67 schedule_work(&vgdev->config_changed_work);
70 static struct virtio_device_id id_table[] = {
71 { VIRTIO_ID_GPU, VIRTIO_DEV_ANY_ID },
75 static unsigned int features[] = {
77 static struct virtio_driver virtio_gpu_driver = {
78 .feature_table = features,
79 .feature_table_size = ARRAY_SIZE(features),
80 .driver.name = KBUILD_MODNAME,
81 .driver.owner = THIS_MODULE,
83 .probe = virtio_gpu_probe,
84 .remove = virtio_gpu_remove,
85 .config_changed = virtio_gpu_config_changed
88 module_virtio_driver(virtio_gpu_driver);
90 MODULE_DEVICE_TABLE(virtio, id_table);
91 MODULE_DESCRIPTION("Virtio GPU driver");
92 MODULE_LICENSE("GPL and additional rights");
93 MODULE_AUTHOR("Dave Airlie <airlied@redhat.com>");
94 MODULE_AUTHOR("Gerd Hoffmann <kraxel@redhat.com>");
95 MODULE_AUTHOR("Alon Levy");
97 static const struct file_operations virtio_gpu_driver_fops = {
100 .mmap = virtio_gpu_mmap,
103 .unlocked_ioctl = drm_ioctl,
104 .release = drm_release,
106 .compat_ioctl = drm_compat_ioctl,
108 .llseek = noop_llseek,
112 static struct drm_driver driver = {
113 .driver_features = DRIVER_MODESET | DRIVER_GEM,
114 .set_busid = drm_virtio_set_busid,
115 .load = virtio_gpu_driver_load,
116 .unload = virtio_gpu_driver_unload,
118 .dumb_create = virtio_gpu_mode_dumb_create,
119 .dumb_map_offset = virtio_gpu_mode_dumb_mmap,
120 .dumb_destroy = virtio_gpu_mode_dumb_destroy,
122 #if defined(CONFIG_DEBUG_FS)
123 .debugfs_init = virtio_gpu_debugfs_init,
124 .debugfs_cleanup = virtio_gpu_debugfs_takedown,
127 .gem_free_object = virtio_gpu_gem_free_object,
128 .fops = &virtio_gpu_driver_fops,
133 .major = DRIVER_MAJOR,
134 .minor = DRIVER_MINOR,
135 .patchlevel = DRIVER_PATCHLEVEL,