2 * Copyright 2013 Red Hat
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
29 #if defined(__cplusplus)
33 /* Please note that modifications to all structs defined here are
34 * subject to backwards-compatibility constraints.
36 * Do not use pointers, use __u64 instead for 32 bit / 64 bit user/kernel
37 * compatibility Keep fields aligned to their size
40 #define DRM_VIRTGPU_MAP 0x01
41 #define DRM_VIRTGPU_EXECBUFFER 0x02
42 #define DRM_VIRTGPU_GETPARAM 0x03
43 #define DRM_VIRTGPU_RESOURCE_CREATE 0x04
44 #define DRM_VIRTGPU_RESOURCE_INFO 0x05
45 #define DRM_VIRTGPU_TRANSFER_FROM_HOST 0x06
46 #define DRM_VIRTGPU_TRANSFER_TO_HOST 0x07
47 #define DRM_VIRTGPU_WAIT 0x08
48 #define DRM_VIRTGPU_GET_CAPS 0x09
49 #define DRM_VIRTGPU_RESOURCE_CREATE_BLOB 0x0a
50 #define DRM_VIRTGPU_CONTEXT_INIT 0x0b
52 #define VIRTGPU_EXECBUF_FENCE_FD_IN 0x01
53 #define VIRTGPU_EXECBUF_FENCE_FD_OUT 0x02
54 #define VIRTGPU_EXECBUF_RING_IDX 0x04
55 #define VIRTGPU_EXECBUF_FLAGS (\
56 VIRTGPU_EXECBUF_FENCE_FD_IN |\
57 VIRTGPU_EXECBUF_FENCE_FD_OUT |\
58 VIRTGPU_EXECBUF_RING_IDX |\
61 struct drm_virtgpu_map {
62 __u64 offset; /* use for mmap system call */
67 /* fence_fd is modified on success if VIRTGPU_EXECBUF_FENCE_FD_OUT flag is set. */
68 struct drm_virtgpu_execbuffer {
71 __u64 command; /* void* */
74 __s32 fence_fd; /* in/out fence fd (see VIRTGPU_EXECBUF_FENCE_FD_IN/OUT) */
75 __u32 ring_idx; /* command ring index (see VIRTGPU_EXECBUF_RING_IDX) */
79 #define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */
80 #define VIRTGPU_PARAM_CAPSET_QUERY_FIX 2 /* do we have the capset fix */
81 #define VIRTGPU_PARAM_RESOURCE_BLOB 3 /* DRM_VIRTGPU_RESOURCE_CREATE_BLOB */
82 #define VIRTGPU_PARAM_HOST_VISIBLE 4 /* Host blob resources are mappable */
83 #define VIRTGPU_PARAM_CROSS_DEVICE 5 /* Cross virtio-device resource sharing */
84 #define VIRTGPU_PARAM_CONTEXT_INIT 6 /* DRM_VIRTGPU_CONTEXT_INIT */
85 #define VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs 7 /* Bitmask of supported capability set ids */
87 struct drm_virtgpu_getparam {
92 /* NO_BO flags? NO resource flag? */
93 /* resource flag for y_0_top */
94 struct drm_virtgpu_resource_create {
105 __u32 bo_handle; /* if this is set - recreate a new resource attached to this bo ? */
106 __u32 res_handle; /* returned by kernel */
107 __u32 size; /* validate transfer in the host */
108 __u32 stride; /* validate transfer in the host */
111 struct drm_virtgpu_resource_info {
118 struct drm_virtgpu_3d_box {
127 struct drm_virtgpu_3d_transfer_to_host {
129 struct drm_virtgpu_3d_box box;
136 struct drm_virtgpu_3d_transfer_from_host {
138 struct drm_virtgpu_3d_box box;
145 #define VIRTGPU_WAIT_NOWAIT 1 /* like it */
146 struct drm_virtgpu_3d_wait {
147 __u32 handle; /* 0 is an invalid handle */
151 struct drm_virtgpu_get_caps {
159 struct drm_virtgpu_resource_create_blob {
160 #define VIRTGPU_BLOB_MEM_GUEST 0x0001
161 #define VIRTGPU_BLOB_MEM_HOST3D 0x0002
162 #define VIRTGPU_BLOB_MEM_HOST3D_GUEST 0x0003
164 #define VIRTGPU_BLOB_FLAG_USE_MAPPABLE 0x0001
165 #define VIRTGPU_BLOB_FLAG_USE_SHAREABLE 0x0002
166 #define VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE 0x0004
167 /* zero is invalid blob_mem */
175 * for 3D contexts with VIRTGPU_BLOB_MEM_HOST3D_GUEST and
176 * VIRTGPU_BLOB_MEM_HOST3D otherwise, must be zero.
184 #define VIRTGPU_CONTEXT_PARAM_CAPSET_ID 0x0001
185 #define VIRTGPU_CONTEXT_PARAM_NUM_RINGS 0x0002
186 #define VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK 0x0003
187 struct drm_virtgpu_context_set_param {
192 struct drm_virtgpu_context_init {
196 /* pointer to drm_virtgpu_context_set_param array */
197 __u64 ctx_set_params;
201 * Event code that's given when VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK is in
202 * effect. The event size is sizeof(drm_event), since there is no additional
205 #define VIRTGPU_EVENT_FENCE_SIGNALED 0x90000000
207 #define DRM_IOCTL_VIRTGPU_MAP \
208 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_MAP, struct drm_virtgpu_map)
210 #define DRM_IOCTL_VIRTGPU_EXECBUFFER \
211 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_EXECBUFFER,\
212 struct drm_virtgpu_execbuffer)
214 #define DRM_IOCTL_VIRTGPU_GETPARAM \
215 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_GETPARAM,\
216 struct drm_virtgpu_getparam)
218 #define DRM_IOCTL_VIRTGPU_RESOURCE_CREATE \
219 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_CREATE, \
220 struct drm_virtgpu_resource_create)
222 #define DRM_IOCTL_VIRTGPU_RESOURCE_INFO \
223 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_INFO, \
224 struct drm_virtgpu_resource_info)
226 #define DRM_IOCTL_VIRTGPU_TRANSFER_FROM_HOST \
227 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_TRANSFER_FROM_HOST, \
228 struct drm_virtgpu_3d_transfer_from_host)
230 #define DRM_IOCTL_VIRTGPU_TRANSFER_TO_HOST \
231 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_TRANSFER_TO_HOST, \
232 struct drm_virtgpu_3d_transfer_to_host)
234 #define DRM_IOCTL_VIRTGPU_WAIT \
235 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_WAIT, \
236 struct drm_virtgpu_3d_wait)
238 #define DRM_IOCTL_VIRTGPU_GET_CAPS \
239 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_GET_CAPS, \
240 struct drm_virtgpu_get_caps)
242 #define DRM_IOCTL_VIRTGPU_RESOURCE_CREATE_BLOB \
243 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_CREATE_BLOB, \
244 struct drm_virtgpu_resource_create_blob)
246 #define DRM_IOCTL_VIRTGPU_CONTEXT_INIT \
247 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_CONTEXT_INIT, \
248 struct drm_virtgpu_context_init)
250 #if defined(__cplusplus)