blob: 49a3d8d5a2496d07a5e1cb3d8192ce93d264dace [file] [log] [blame]
Dave Airliedc5698e2013-09-09 10:02:56 +10001/*
2 * Copyright (C) 2015 Red Hat, Inc.
3 * All Rights Reserved.
4 *
5 * Authors:
6 * Dave Airlie <airlied@redhat.com>
7 * Gerd Hoffmann <kraxel@redhat.com>
8 *
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:
15 *
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
18 * Software.
19 *
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.
27 */
28
29#include <linux/module.h>
30#include <linux/console.h>
31#include <linux/pci.h>
Masahiro Yamadaff67a252017-04-24 13:50:34 +090032#include <drm/drmP.h>
33#include <drm/drm.h>
Dave Airliedc5698e2013-09-09 10:02:56 +100034
35#include "virtgpu_drv.h"
36static struct drm_driver driver;
37
38static int virtio_gpu_modeset = -1;
39
40MODULE_PARM_DESC(modeset, "Disable/Enable modesetting");
41module_param_named(modeset, virtio_gpu_modeset, int, 0400);
42
43static int virtio_gpu_probe(struct virtio_device *vdev)
44{
Dave Airliedc5698e2013-09-09 10:02:56 +100045 if (vgacon_text_force() && virtio_gpu_modeset == -1)
46 return -EINVAL;
Dave Airliedc5698e2013-09-09 10:02:56 +100047
48 if (virtio_gpu_modeset == 0)
49 return -EINVAL;
50
51 return drm_virtio_init(&driver, vdev);
52}
53
54static void virtio_gpu_remove(struct virtio_device *vdev)
55{
56 struct drm_device *dev = vdev->priv;
57 drm_put_dev(dev);
58}
59
60static void virtio_gpu_config_changed(struct virtio_device *vdev)
61{
62 struct drm_device *dev = vdev->priv;
63 struct virtio_gpu_device *vgdev = dev->dev_private;
64
65 schedule_work(&vgdev->config_changed_work);
66}
67
68static struct virtio_device_id id_table[] = {
69 { VIRTIO_ID_GPU, VIRTIO_DEV_ANY_ID },
70 { 0 },
71};
72
73static unsigned int features[] = {
Gerd Hoffmann62fb7a52014-10-28 12:48:00 +010074#ifdef __LITTLE_ENDIAN
75 /*
76 * Gallium command stream send by virgl is native endian.
77 * Because of that we only support little endian guests on
78 * little endian hosts.
79 */
80 VIRTIO_GPU_F_VIRGL,
81#endif
Dave Airliedc5698e2013-09-09 10:02:56 +100082};
83static struct virtio_driver virtio_gpu_driver = {
84 .feature_table = features,
85 .feature_table_size = ARRAY_SIZE(features),
86 .driver.name = KBUILD_MODNAME,
87 .driver.owner = THIS_MODULE,
88 .id_table = id_table,
89 .probe = virtio_gpu_probe,
90 .remove = virtio_gpu_remove,
91 .config_changed = virtio_gpu_config_changed
92};
93
94module_virtio_driver(virtio_gpu_driver);
95
96MODULE_DEVICE_TABLE(virtio, id_table);
97MODULE_DESCRIPTION("Virtio GPU driver");
98MODULE_LICENSE("GPL and additional rights");
99MODULE_AUTHOR("Dave Airlie <airlied@redhat.com>");
100MODULE_AUTHOR("Gerd Hoffmann <kraxel@redhat.com>");
101MODULE_AUTHOR("Alon Levy");
102
103static const struct file_operations virtio_gpu_driver_fops = {
104 .owner = THIS_MODULE,
105 .open = drm_open,
106 .mmap = virtio_gpu_mmap,
107 .poll = drm_poll,
108 .read = drm_read,
109 .unlocked_ioctl = drm_ioctl,
110 .release = drm_release,
Dave Airliedc5698e2013-09-09 10:02:56 +1000111 .compat_ioctl = drm_compat_ioctl,
Dave Airliedc5698e2013-09-09 10:02:56 +1000112 .llseek = noop_llseek,
113};
114
115
116static struct drm_driver driver = {
Rob Herring5443ce82016-01-13 15:52:10 -0600117 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC,
Dave Airliedc5698e2013-09-09 10:02:56 +1000118 .load = virtio_gpu_driver_load,
119 .unload = virtio_gpu_driver_unload,
Gerd Hoffmann62fb7a52014-10-28 12:48:00 +0100120 .open = virtio_gpu_driver_open,
121 .postclose = virtio_gpu_driver_postclose,
Dave Airliedc5698e2013-09-09 10:02:56 +1000122
123 .dumb_create = virtio_gpu_mode_dumb_create,
124 .dumb_map_offset = virtio_gpu_mode_dumb_mmap,
Dave Airliedc5698e2013-09-09 10:02:56 +1000125
126#if defined(CONFIG_DEBUG_FS)
127 .debugfs_init = virtio_gpu_debugfs_init,
Dave Airliedc5698e2013-09-09 10:02:56 +1000128#endif
Dave Airlie11a8f282015-01-23 13:04:11 +1000129 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
130 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
131 .gem_prime_export = drm_gem_prime_export,
132 .gem_prime_import = drm_gem_prime_import,
133 .gem_prime_pin = virtgpu_gem_prime_pin,
134 .gem_prime_unpin = virtgpu_gem_prime_unpin,
135 .gem_prime_get_sg_table = virtgpu_gem_prime_get_sg_table,
136 .gem_prime_import_sg_table = virtgpu_gem_prime_import_sg_table,
137 .gem_prime_vmap = virtgpu_gem_prime_vmap,
138 .gem_prime_vunmap = virtgpu_gem_prime_vunmap,
139 .gem_prime_mmap = virtgpu_gem_prime_mmap,
Dave Airliedc5698e2013-09-09 10:02:56 +1000140
Daniel Vetterbd884b72016-05-30 19:53:09 +0200141 .gem_free_object_unlocked = virtio_gpu_gem_free_object,
Gerd Hoffmann62fb7a52014-10-28 12:48:00 +0100142 .gem_open_object = virtio_gpu_gem_object_open,
143 .gem_close_object = virtio_gpu_gem_object_close,
Dave Airliedc5698e2013-09-09 10:02:56 +1000144 .fops = &virtio_gpu_driver_fops,
145
Gerd Hoffmann62fb7a52014-10-28 12:48:00 +0100146 .ioctls = virtio_gpu_ioctls,
147 .num_ioctls = DRM_VIRTIO_NUM_IOCTLS,
148
Dave Airliedc5698e2013-09-09 10:02:56 +1000149 .name = DRIVER_NAME,
150 .desc = DRIVER_DESC,
151 .date = DRIVER_DATE,
152 .major = DRIVER_MAJOR,
153 .minor = DRIVER_MINOR,
154 .patchlevel = DRIVER_PATCHLEVEL,
155};