Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 1 | /* |
| 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 Yamada | ff67a25 | 2017-04-24 13:50:34 +0900 | [diff] [blame] | 32 | #include <drm/drmP.h> |
| 33 | #include <drm/drm.h> |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 34 | |
| 35 | #include "virtgpu_drv.h" |
| 36 | static struct drm_driver driver; |
| 37 | |
| 38 | static int virtio_gpu_modeset = -1; |
| 39 | |
| 40 | MODULE_PARM_DESC(modeset, "Disable/Enable modesetting"); |
| 41 | module_param_named(modeset, virtio_gpu_modeset, int, 0400); |
| 42 | |
| 43 | static int virtio_gpu_probe(struct virtio_device *vdev) |
| 44 | { |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 45 | if (vgacon_text_force() && virtio_gpu_modeset == -1) |
| 46 | return -EINVAL; |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 47 | |
| 48 | if (virtio_gpu_modeset == 0) |
| 49 | return -EINVAL; |
| 50 | |
| 51 | return drm_virtio_init(&driver, vdev); |
| 52 | } |
| 53 | |
| 54 | static void virtio_gpu_remove(struct virtio_device *vdev) |
| 55 | { |
| 56 | struct drm_device *dev = vdev->priv; |
| 57 | drm_put_dev(dev); |
| 58 | } |
| 59 | |
| 60 | static 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 | |
| 68 | static struct virtio_device_id id_table[] = { |
| 69 | { VIRTIO_ID_GPU, VIRTIO_DEV_ANY_ID }, |
| 70 | { 0 }, |
| 71 | }; |
| 72 | |
| 73 | static unsigned int features[] = { |
Gerd Hoffmann | 62fb7a5 | 2014-10-28 12:48:00 +0100 | [diff] [blame] | 74 | #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 Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 82 | }; |
| 83 | static 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 | |
| 94 | module_virtio_driver(virtio_gpu_driver); |
| 95 | |
| 96 | MODULE_DEVICE_TABLE(virtio, id_table); |
| 97 | MODULE_DESCRIPTION("Virtio GPU driver"); |
| 98 | MODULE_LICENSE("GPL and additional rights"); |
| 99 | MODULE_AUTHOR("Dave Airlie <airlied@redhat.com>"); |
| 100 | MODULE_AUTHOR("Gerd Hoffmann <kraxel@redhat.com>"); |
| 101 | MODULE_AUTHOR("Alon Levy"); |
| 102 | |
| 103 | static 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 Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 111 | .compat_ioctl = drm_compat_ioctl, |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 112 | .llseek = noop_llseek, |
| 113 | }; |
| 114 | |
| 115 | |
| 116 | static struct drm_driver driver = { |
Rob Herring | 5443ce8 | 2016-01-13 15:52:10 -0600 | [diff] [blame] | 117 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME | DRIVER_RENDER | DRIVER_ATOMIC, |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 118 | .load = virtio_gpu_driver_load, |
| 119 | .unload = virtio_gpu_driver_unload, |
Gerd Hoffmann | 62fb7a5 | 2014-10-28 12:48:00 +0100 | [diff] [blame] | 120 | .open = virtio_gpu_driver_open, |
| 121 | .postclose = virtio_gpu_driver_postclose, |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 122 | |
| 123 | .dumb_create = virtio_gpu_mode_dumb_create, |
| 124 | .dumb_map_offset = virtio_gpu_mode_dumb_mmap, |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 125 | |
| 126 | #if defined(CONFIG_DEBUG_FS) |
| 127 | .debugfs_init = virtio_gpu_debugfs_init, |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 128 | #endif |
Dave Airlie | 11a8f28 | 2015-01-23 13:04:11 +1000 | [diff] [blame] | 129 | .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 Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 140 | |
Daniel Vetter | bd884b7 | 2016-05-30 19:53:09 +0200 | [diff] [blame] | 141 | .gem_free_object_unlocked = virtio_gpu_gem_free_object, |
Gerd Hoffmann | 62fb7a5 | 2014-10-28 12:48:00 +0100 | [diff] [blame] | 142 | .gem_open_object = virtio_gpu_gem_object_open, |
| 143 | .gem_close_object = virtio_gpu_gem_object_close, |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 144 | .fops = &virtio_gpu_driver_fops, |
| 145 | |
Gerd Hoffmann | 62fb7a5 | 2014-10-28 12:48:00 +0100 | [diff] [blame] | 146 | .ioctls = virtio_gpu_ioctls, |
| 147 | .num_ioctls = DRM_VIRTIO_NUM_IOCTLS, |
| 148 | |
Dave Airlie | dc5698e | 2013-09-09 10:02:56 +1000 | [diff] [blame] | 149 | .name = DRIVER_NAME, |
| 150 | .desc = DRIVER_DESC, |
| 151 | .date = DRIVER_DATE, |
| 152 | .major = DRIVER_MAJOR, |
| 153 | .minor = DRIVER_MINOR, |
| 154 | .patchlevel = DRIVER_PATCHLEVEL, |
| 155 | }; |