2 * Copyright (C) 2015 Red Hat, Inc.
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 if (vgacon_text_force() && virtio_gpu_modeset == -1)
48 if (virtio_gpu_modeset == 0)
51 return drm_virtio_init(&driver, vdev);
54 static void virtio_gpu_remove(struct virtio_device *vdev)
56 struct drm_device *dev = vdev->priv;
61 static void virtio_gpu_config_changed(struct virtio_device *vdev)
63 struct drm_device *dev = vdev->priv;
64 struct virtio_gpu_device *vgdev = dev->dev_private;
66 schedule_work(&vgdev->config_changed_work);
69 static struct virtio_device_id id_table[] = {
70 { VIRTIO_ID_GPU, VIRTIO_DEV_ANY_ID },
74 static unsigned int features[] = {
75 #ifdef __LITTLE_ENDIAN
77 * Gallium command stream send by virgl is native endian.
78 * Because of that we only support little endian guests on
79 * little endian hosts.
85 static struct virtio_driver virtio_gpu_driver = {
86 .feature_table = features,
87 .feature_table_size = ARRAY_SIZE(features),
88 .driver.name = KBUILD_MODNAME,
89 .driver.owner = THIS_MODULE,
91 .probe = virtio_gpu_probe,
92 .remove = virtio_gpu_remove,
93 .config_changed = virtio_gpu_config_changed
96 module_virtio_driver(virtio_gpu_driver);
98 MODULE_DEVICE_TABLE(virtio, id_table);
99 MODULE_DESCRIPTION("Virtio GPU driver");
100 MODULE_LICENSE("GPL and additional rights");
103 MODULE_AUTHOR("Alon Levy");
105 static const struct file_operations virtio_gpu_driver_fops = {
106 .owner = THIS_MODULE,
108 .mmap = virtio_gpu_mmap,
111 .unlocked_ioctl = drm_ioctl,
112 .release = drm_release,
113 .compat_ioctl = drm_compat_ioctl,
114 .llseek = noop_llseek,
117 static struct drm_driver driver = {
118 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC,
119 .load = virtio_gpu_driver_load,
120 .unload = virtio_gpu_driver_unload,
121 .open = virtio_gpu_driver_open,
122 .postclose = virtio_gpu_driver_postclose,
124 .dumb_create = virtio_gpu_mode_dumb_create,
125 .dumb_map_offset = virtio_gpu_mode_dumb_mmap,
127 #if defined(CONFIG_DEBUG_FS)
128 .debugfs_init = virtio_gpu_debugfs_init,
130 .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
131 .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
132 .gem_prime_export = drm_gem_prime_export,
133 .gem_prime_import = drm_gem_prime_import,
134 .gem_prime_pin = virtgpu_gem_prime_pin,
135 .gem_prime_unpin = virtgpu_gem_prime_unpin,
136 .gem_prime_get_sg_table = virtgpu_gem_prime_get_sg_table,
137 .gem_prime_import_sg_table = virtgpu_gem_prime_import_sg_table,
138 .gem_prime_vmap = virtgpu_gem_prime_vmap,
139 .gem_prime_vunmap = virtgpu_gem_prime_vunmap,
140 .gem_prime_mmap = virtgpu_gem_prime_mmap,
142 .gem_free_object_unlocked = virtio_gpu_gem_free_object,
143 .gem_open_object = virtio_gpu_gem_object_open,
144 .gem_close_object = virtio_gpu_gem_object_close,
145 .fops = &virtio_gpu_driver_fops,
147 .ioctls = virtio_gpu_ioctls,
148 .num_ioctls = DRM_VIRTIO_NUM_IOCTLS,
153 .major = DRIVER_MAJOR,
154 .minor = DRIVER_MINOR,
155 .patchlevel = DRIVER_PATCHLEVEL,