virtgpu_drm.h (7844B) - Raw
1 /* 2 * Copyright 2013 Red Hat 3 * All Rights Reserved. 4 * 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: 11 * 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 14 * Software. 15 * 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. 23 */ 24 #ifndef VIRTGPU_DRM_H 25 #define VIRTGPU_DRM_H 26 27 #include "drm.h" 28 29 #if defined(__cplusplus) 30 extern "C" { 31 #endif 32 33 /* Please note that modifications to all structs defined here are 34 * subject to backwards-compatibility constraints. 35 * 36 * Do not use pointers, use __u64 instead for 32 bit / 64 bit user/kernel 37 * compatibility Keep fields aligned to their size 38 */ 39 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 51 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 |\ 59 0) 60 61 struct drm_virtgpu_map { 62 __u64 offset; /* use for mmap system call */ 63 __u32 handle; 64 __u32 pad; 65 }; 66 67 #define VIRTGPU_EXECBUF_SYNCOBJ_RESET 0x01 68 #define VIRTGPU_EXECBUF_SYNCOBJ_FLAGS ( \ 69 VIRTGPU_EXECBUF_SYNCOBJ_RESET | \ 70 0) 71 struct drm_virtgpu_execbuffer_syncobj { 72 __u32 handle; 73 __u32 flags; 74 __u64 point; 75 }; 76 77 /* fence_fd is modified on success if VIRTGPU_EXECBUF_FENCE_FD_OUT flag is set. */ 78 struct drm_virtgpu_execbuffer { 79 __u32 flags; 80 __u32 size; 81 __u64 command; /* void* */ 82 __u64 bo_handles; 83 __u32 num_bo_handles; 84 __s32 fence_fd; /* in/out fence fd (see VIRTGPU_EXECBUF_FENCE_FD_IN/OUT) */ 85 __u32 ring_idx; /* command ring index (see VIRTGPU_EXECBUF_RING_IDX) */ 86 __u32 syncobj_stride; /* size of @drm_virtgpu_execbuffer_syncobj */ 87 __u32 num_in_syncobjs; 88 __u32 num_out_syncobjs; 89 __u64 in_syncobjs; 90 __u64 out_syncobjs; 91 }; 92 93 #define VIRTGPU_PARAM_3D_FEATURES 1 /* do we have 3D features in the hw */ 94 #define VIRTGPU_PARAM_CAPSET_QUERY_FIX 2 /* do we have the capset fix */ 95 #define VIRTGPU_PARAM_RESOURCE_BLOB 3 /* DRM_VIRTGPU_RESOURCE_CREATE_BLOB */ 96 #define VIRTGPU_PARAM_HOST_VISIBLE 4 /* Host blob resources are mappable */ 97 #define VIRTGPU_PARAM_CROSS_DEVICE 5 /* Cross virtio-device resource sharing */ 98 #define VIRTGPU_PARAM_CONTEXT_INIT 6 /* DRM_VIRTGPU_CONTEXT_INIT */ 99 #define VIRTGPU_PARAM_SUPPORTED_CAPSET_IDs 7 /* Bitmask of supported capability set ids */ 100 #define VIRTGPU_PARAM_EXPLICIT_DEBUG_NAME 8 /* Ability to set debug name from userspace */ 101 102 struct drm_virtgpu_getparam { 103 __u64 param; 104 __u64 value; 105 }; 106 107 /* NO_BO flags? NO resource flag? */ 108 /* resource flag for y_0_top */ 109 struct drm_virtgpu_resource_create { 110 __u32 target; 111 __u32 format; 112 __u32 bind; 113 __u32 width; 114 __u32 height; 115 __u32 depth; 116 __u32 array_size; 117 __u32 last_level; 118 __u32 nr_samples; 119 __u32 flags; 120 __u32 bo_handle; /* if this is set - recreate a new resource attached to this bo ? */ 121 __u32 res_handle; /* returned by kernel */ 122 __u32 size; /* validate transfer in the host */ 123 __u32 stride; /* validate transfer in the host */ 124 }; 125 126 struct drm_virtgpu_resource_info { 127 __u32 bo_handle; 128 __u32 res_handle; 129 __u32 size; 130 __u32 blob_mem; 131 }; 132 133 struct drm_virtgpu_3d_box { 134 __u32 x; 135 __u32 y; 136 __u32 z; 137 __u32 w; 138 __u32 h; 139 __u32 d; 140 }; 141 142 struct drm_virtgpu_3d_transfer_to_host { 143 __u32 bo_handle; 144 struct drm_virtgpu_3d_box box; 145 __u32 level; 146 __u32 offset; 147 __u32 stride; 148 __u32 layer_stride; 149 }; 150 151 struct drm_virtgpu_3d_transfer_from_host { 152 __u32 bo_handle; 153 struct drm_virtgpu_3d_box box; 154 __u32 level; 155 __u32 offset; 156 __u32 stride; 157 __u32 layer_stride; 158 }; 159 160 #define VIRTGPU_WAIT_NOWAIT 1 /* like it */ 161 struct drm_virtgpu_3d_wait { 162 __u32 handle; /* 0 is an invalid handle */ 163 __u32 flags; 164 }; 165 166 struct drm_virtgpu_get_caps { 167 __u32 cap_set_id; 168 __u32 cap_set_ver; 169 __u64 addr; 170 __u32 size; 171 __u32 pad; 172 }; 173 174 struct drm_virtgpu_resource_create_blob { 175 #define VIRTGPU_BLOB_MEM_GUEST 0x0001 176 #define VIRTGPU_BLOB_MEM_HOST3D 0x0002 177 #define VIRTGPU_BLOB_MEM_HOST3D_GUEST 0x0003 178 179 #define VIRTGPU_BLOB_FLAG_USE_MAPPABLE 0x0001 180 #define VIRTGPU_BLOB_FLAG_USE_SHAREABLE 0x0002 181 #define VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE 0x0004 182 /* zero is invalid blob_mem */ 183 __u32 blob_mem; 184 __u32 blob_flags; 185 __u32 bo_handle; 186 __u32 res_handle; 187 __u64 size; 188 189 /* 190 * for 3D contexts with VIRTGPU_BLOB_MEM_HOST3D_GUEST and 191 * VIRTGPU_BLOB_MEM_HOST3D otherwise, must be zero. 192 */ 193 __u32 pad; 194 __u32 cmd_size; 195 __u64 cmd; 196 __u64 blob_id; 197 }; 198 199 #define VIRTGPU_CONTEXT_PARAM_CAPSET_ID 0x0001 200 #define VIRTGPU_CONTEXT_PARAM_NUM_RINGS 0x0002 201 #define VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK 0x0003 202 #define VIRTGPU_CONTEXT_PARAM_DEBUG_NAME 0x0004 203 struct drm_virtgpu_context_set_param { 204 __u64 param; 205 __u64 value; 206 }; 207 208 struct drm_virtgpu_context_init { 209 __u32 num_params; 210 __u32 pad; 211 212 /* pointer to drm_virtgpu_context_set_param array */ 213 __u64 ctx_set_params; 214 }; 215 216 /* 217 * Event code that's given when VIRTGPU_CONTEXT_PARAM_POLL_RINGS_MASK is in 218 * effect. The event size is sizeof(drm_event), since there is no additional 219 * payload. 220 */ 221 #define VIRTGPU_EVENT_FENCE_SIGNALED 0x90000000 222 223 #define DRM_IOCTL_VIRTGPU_MAP \ 224 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_MAP, struct drm_virtgpu_map) 225 226 #define DRM_IOCTL_VIRTGPU_EXECBUFFER \ 227 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_EXECBUFFER,\ 228 struct drm_virtgpu_execbuffer) 229 230 #define DRM_IOCTL_VIRTGPU_GETPARAM \ 231 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_GETPARAM,\ 232 struct drm_virtgpu_getparam) 233 234 #define DRM_IOCTL_VIRTGPU_RESOURCE_CREATE \ 235 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_CREATE, \ 236 struct drm_virtgpu_resource_create) 237 238 #define DRM_IOCTL_VIRTGPU_RESOURCE_INFO \ 239 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_INFO, \ 240 struct drm_virtgpu_resource_info) 241 242 #define DRM_IOCTL_VIRTGPU_TRANSFER_FROM_HOST \ 243 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_TRANSFER_FROM_HOST, \ 244 struct drm_virtgpu_3d_transfer_from_host) 245 246 #define DRM_IOCTL_VIRTGPU_TRANSFER_TO_HOST \ 247 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_TRANSFER_TO_HOST, \ 248 struct drm_virtgpu_3d_transfer_to_host) 249 250 #define DRM_IOCTL_VIRTGPU_WAIT \ 251 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_WAIT, \ 252 struct drm_virtgpu_3d_wait) 253 254 #define DRM_IOCTL_VIRTGPU_GET_CAPS \ 255 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_GET_CAPS, \ 256 struct drm_virtgpu_get_caps) 257 258 #define DRM_IOCTL_VIRTGPU_RESOURCE_CREATE_BLOB \ 259 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_RESOURCE_CREATE_BLOB, \ 260 struct drm_virtgpu_resource_create_blob) 261 262 #define DRM_IOCTL_VIRTGPU_CONTEXT_INIT \ 263 DRM_IOWR(DRM_COMMAND_BASE + DRM_VIRTGPU_CONTEXT_INIT, \ 264 struct drm_virtgpu_context_init) 265 266 #if defined(__cplusplus) 267 } 268 #endif 269 270 #endif