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1 | /************************************************************************** |
2 | * | |
3 | * Copyright © 2009 VMware, Inc., Palo Alto, CA., USA | |
4 | * All Rights Reserved. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a | |
7 | * copy of this software and associated documentation files (the | |
8 | * "Software"), to deal in the Software without restriction, including | |
9 | * without limitation the rights to use, copy, modify, merge, publish, | |
10 | * distribute, sub license, and/or sell copies of the Software, and to | |
11 | * permit persons to whom the Software is furnished to do so, subject to | |
12 | * the following conditions: | |
13 | * | |
14 | * The above copyright notice and this permission notice (including the | |
15 | * next paragraph) shall be included in all copies or substantial portions | |
16 | * of the Software. | |
17 | * | |
18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
20 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL | |
21 | * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, | |
22 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | |
23 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE | |
24 | * USE OR OTHER DEALINGS IN THE SOFTWARE. | |
25 | * | |
26 | **************************************************************************/ | |
27 | ||
28 | #ifndef __VMWGFX_DRM_H__ | |
29 | #define __VMWGFX_DRM_H__ | |
30 | ||
31 | #define DRM_VMW_MAX_SURFACE_FACES 6 | |
32 | #define DRM_VMW_MAX_MIP_LEVELS 24 | |
33 | ||
34 | #define DRM_VMW_EXT_NAME_LEN 128 | |
35 | ||
36 | #define DRM_VMW_GET_PARAM 0 | |
37 | #define DRM_VMW_ALLOC_DMABUF 1 | |
38 | #define DRM_VMW_UNREF_DMABUF 2 | |
39 | #define DRM_VMW_CURSOR_BYPASS 3 | |
40 | /* guarded by DRM_VMW_PARAM_NUM_STREAMS != 0*/ | |
41 | #define DRM_VMW_CONTROL_STREAM 4 | |
42 | #define DRM_VMW_CLAIM_STREAM 5 | |
43 | #define DRM_VMW_UNREF_STREAM 6 | |
44 | /* guarded by DRM_VMW_PARAM_3D == 1 */ | |
45 | #define DRM_VMW_CREATE_CONTEXT 7 | |
46 | #define DRM_VMW_UNREF_CONTEXT 8 | |
47 | #define DRM_VMW_CREATE_SURFACE 9 | |
48 | #define DRM_VMW_UNREF_SURFACE 10 | |
49 | #define DRM_VMW_REF_SURFACE 11 | |
50 | #define DRM_VMW_EXECBUF 12 | |
51 | #define DRM_VMW_FIFO_DEBUG 13 | |
52 | #define DRM_VMW_FENCE_WAIT 14 | |
53 | ||
54 | ||
55 | /*************************************************************************/ | |
56 | /** | |
57 | * DRM_VMW_GET_PARAM - get device information. | |
58 | * | |
59 | * DRM_VMW_PARAM_FIFO_OFFSET: | |
60 | * Offset to use to map the first page of the FIFO read-only. | |
61 | * The fifo is mapped using the mmap() system call on the drm device. | |
62 | * | |
63 | * DRM_VMW_PARAM_OVERLAY_IOCTL: | |
64 | * Does the driver support the overlay ioctl. | |
65 | */ | |
66 | ||
67 | #define DRM_VMW_PARAM_NUM_STREAMS 0 | |
68 | #define DRM_VMW_PARAM_NUM_FREE_STREAMS 1 | |
69 | #define DRM_VMW_PARAM_3D 2 | |
70 | #define DRM_VMW_PARAM_FIFO_OFFSET 3 | |
f77cef3d TH |
71 | #define DRM_VMW_PARAM_HW_CAPS 4 |
72 | #define DRM_VMW_PARAM_FIFO_CAPS 5 | |
fb1d9738 JB |
73 | |
74 | /** | |
75 | * struct drm_vmw_getparam_arg | |
76 | * | |
77 | * @value: Returned value. //Out | |
78 | * @param: Parameter to query. //In. | |
79 | * | |
80 | * Argument to the DRM_VMW_GET_PARAM Ioctl. | |
81 | */ | |
82 | ||
83 | struct drm_vmw_getparam_arg { | |
84 | uint64_t value; | |
85 | uint32_t param; | |
86 | uint32_t pad64; | |
87 | }; | |
88 | ||
89 | /*************************************************************************/ | |
90 | /** | |
91 | * DRM_VMW_EXTENSION - Query device extensions. | |
92 | */ | |
93 | ||
94 | /** | |
95 | * struct drm_vmw_extension_rep | |
96 | * | |
97 | * @exists: The queried extension exists. | |
98 | * @driver_ioctl_offset: Ioctl number of the first ioctl in the extension. | |
99 | * @driver_sarea_offset: Offset to any space in the DRI SAREA | |
100 | * used by the extension. | |
101 | * @major: Major version number of the extension. | |
102 | * @minor: Minor version number of the extension. | |
103 | * @pl: Patch level version number of the extension. | |
104 | * | |
105 | * Output argument to the DRM_VMW_EXTENSION Ioctl. | |
106 | */ | |
107 | ||
108 | struct drm_vmw_extension_rep { | |
109 | int32_t exists; | |
110 | uint32_t driver_ioctl_offset; | |
111 | uint32_t driver_sarea_offset; | |
112 | uint32_t major; | |
113 | uint32_t minor; | |
114 | uint32_t pl; | |
115 | uint32_t pad64; | |
116 | }; | |
117 | ||
118 | /** | |
119 | * union drm_vmw_extension_arg | |
120 | * | |
121 | * @extension - Ascii name of the extension to be queried. //In | |
122 | * @rep - Reply as defined above. //Out | |
123 | * | |
124 | * Argument to the DRM_VMW_EXTENSION Ioctl. | |
125 | */ | |
126 | ||
127 | union drm_vmw_extension_arg { | |
128 | char extension[DRM_VMW_EXT_NAME_LEN]; | |
129 | struct drm_vmw_extension_rep rep; | |
130 | }; | |
131 | ||
132 | /*************************************************************************/ | |
133 | /** | |
134 | * DRM_VMW_CREATE_CONTEXT - Create a host context. | |
135 | * | |
136 | * Allocates a device unique context id, and queues a create context command | |
137 | * for the host. Does not wait for host completion. | |
138 | */ | |
139 | ||
140 | /** | |
141 | * struct drm_vmw_context_arg | |
142 | * | |
143 | * @cid: Device unique context ID. | |
144 | * | |
145 | * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl. | |
146 | * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl. | |
147 | */ | |
148 | ||
149 | struct drm_vmw_context_arg { | |
150 | int32_t cid; | |
151 | uint32_t pad64; | |
152 | }; | |
153 | ||
154 | /*************************************************************************/ | |
155 | /** | |
156 | * DRM_VMW_UNREF_CONTEXT - Create a host context. | |
157 | * | |
158 | * Frees a global context id, and queues a destroy host command for the host. | |
159 | * Does not wait for host completion. The context ID can be used directly | |
160 | * in the command stream and shows up as the same context ID on the host. | |
161 | */ | |
162 | ||
163 | /*************************************************************************/ | |
164 | /** | |
165 | * DRM_VMW_CREATE_SURFACE - Create a host suface. | |
166 | * | |
167 | * Allocates a device unique surface id, and queues a create surface command | |
168 | * for the host. Does not wait for host completion. The surface ID can be | |
169 | * used directly in the command stream and shows up as the same surface | |
170 | * ID on the host. | |
171 | */ | |
172 | ||
173 | /** | |
174 | * struct drm_wmv_surface_create_req | |
175 | * | |
176 | * @flags: Surface flags as understood by the host. | |
177 | * @format: Surface format as understood by the host. | |
178 | * @mip_levels: Number of mip levels for each face. | |
179 | * An unused face should have 0 encoded. | |
180 | * @size_addr: Address of a user-space array of sruct drm_vmw_size | |
181 | * cast to an uint64_t for 32-64 bit compatibility. | |
182 | * The size of the array should equal the total number of mipmap levels. | |
183 | * @shareable: Boolean whether other clients (as identified by file descriptors) | |
184 | * may reference this surface. | |
f77cef3d TH |
185 | * @scanout: Boolean whether the surface is intended to be used as a |
186 | * scanout. | |
fb1d9738 JB |
187 | * |
188 | * Input data to the DRM_VMW_CREATE_SURFACE Ioctl. | |
189 | * Output data from the DRM_VMW_REF_SURFACE Ioctl. | |
190 | */ | |
191 | ||
192 | struct drm_vmw_surface_create_req { | |
193 | uint32_t flags; | |
194 | uint32_t format; | |
195 | uint32_t mip_levels[DRM_VMW_MAX_SURFACE_FACES]; | |
196 | uint64_t size_addr; | |
197 | int32_t shareable; | |
f77cef3d | 198 | int32_t scanout; |
fb1d9738 JB |
199 | }; |
200 | ||
201 | /** | |
202 | * struct drm_wmv_surface_arg | |
203 | * | |
204 | * @sid: Surface id of created surface or surface to destroy or reference. | |
205 | * | |
206 | * Output data from the DRM_VMW_CREATE_SURFACE Ioctl. | |
207 | * Input argument to the DRM_VMW_UNREF_SURFACE Ioctl. | |
208 | * Input argument to the DRM_VMW_REF_SURFACE Ioctl. | |
209 | */ | |
210 | ||
211 | struct drm_vmw_surface_arg { | |
212 | int32_t sid; | |
213 | uint32_t pad64; | |
214 | }; | |
215 | ||
216 | /** | |
217 | * struct drm_vmw_size ioctl. | |
218 | * | |
219 | * @width - mip level width | |
220 | * @height - mip level height | |
221 | * @depth - mip level depth | |
222 | * | |
223 | * Description of a mip level. | |
224 | * Input data to the DRM_WMW_CREATE_SURFACE Ioctl. | |
225 | */ | |
226 | ||
227 | struct drm_vmw_size { | |
228 | uint32_t width; | |
229 | uint32_t height; | |
230 | uint32_t depth; | |
231 | uint32_t pad64; | |
232 | }; | |
233 | ||
234 | /** | |
235 | * union drm_vmw_surface_create_arg | |
236 | * | |
237 | * @rep: Output data as described above. | |
238 | * @req: Input data as described above. | |
239 | * | |
240 | * Argument to the DRM_VMW_CREATE_SURFACE Ioctl. | |
241 | */ | |
242 | ||
243 | union drm_vmw_surface_create_arg { | |
244 | struct drm_vmw_surface_arg rep; | |
245 | struct drm_vmw_surface_create_req req; | |
246 | }; | |
247 | ||
248 | /*************************************************************************/ | |
249 | /** | |
250 | * DRM_VMW_REF_SURFACE - Reference a host surface. | |
251 | * | |
252 | * Puts a reference on a host surface with a give sid, as previously | |
253 | * returned by the DRM_VMW_CREATE_SURFACE ioctl. | |
254 | * A reference will make sure the surface isn't destroyed while we hold | |
255 | * it and will allow the calling client to use the surface ID in the command | |
256 | * stream. | |
257 | * | |
258 | * On successful return, the Ioctl returns the surface information given | |
259 | * in the DRM_VMW_CREATE_SURFACE ioctl. | |
260 | */ | |
261 | ||
262 | /** | |
263 | * union drm_vmw_surface_reference_arg | |
264 | * | |
265 | * @rep: Output data as described above. | |
266 | * @req: Input data as described above. | |
267 | * | |
268 | * Argument to the DRM_VMW_REF_SURFACE Ioctl. | |
269 | */ | |
270 | ||
271 | union drm_vmw_surface_reference_arg { | |
272 | struct drm_vmw_surface_create_req rep; | |
273 | struct drm_vmw_surface_arg req; | |
274 | }; | |
275 | ||
276 | /*************************************************************************/ | |
277 | /** | |
278 | * DRM_VMW_UNREF_SURFACE - Unreference a host surface. | |
279 | * | |
280 | * Clear a reference previously put on a host surface. | |
281 | * When all references are gone, including the one implicitly placed | |
282 | * on creation, | |
283 | * a destroy surface command will be queued for the host. | |
284 | * Does not wait for completion. | |
285 | */ | |
286 | ||
287 | /*************************************************************************/ | |
288 | /** | |
289 | * DRM_VMW_EXECBUF | |
290 | * | |
291 | * Submit a command buffer for execution on the host, and return a | |
292 | * fence sequence that when signaled, indicates that the command buffer has | |
293 | * executed. | |
294 | */ | |
295 | ||
296 | /** | |
297 | * struct drm_vmw_execbuf_arg | |
298 | * | |
299 | * @commands: User-space address of a command buffer cast to an uint64_t. | |
300 | * @command-size: Size in bytes of the command buffer. | |
f77cef3d TH |
301 | * @throttle-us: Sleep until software is less than @throttle_us |
302 | * microseconds ahead of hardware. The driver may round this value | |
303 | * to the nearest kernel tick. | |
fb1d9738 JB |
304 | * @fence_rep: User-space address of a struct drm_vmw_fence_rep cast to an |
305 | * uint64_t. | |
a87897ed JB |
306 | * @version: Allows expanding the execbuf ioctl parameters without breaking |
307 | * backwards compatibility, since user-space will always tell the kernel | |
308 | * which version it uses. | |
309 | * @flags: Execbuf flags. None currently. | |
fb1d9738 JB |
310 | * |
311 | * Argument to the DRM_VMW_EXECBUF Ioctl. | |
312 | */ | |
313 | ||
a87897ed JB |
314 | #define DRM_VMW_EXECBUF_VERSION 0 |
315 | ||
fb1d9738 JB |
316 | struct drm_vmw_execbuf_arg { |
317 | uint64_t commands; | |
318 | uint32_t command_size; | |
f77cef3d | 319 | uint32_t throttle_us; |
fb1d9738 | 320 | uint64_t fence_rep; |
a87897ed JB |
321 | uint32_t version; |
322 | uint32_t flags; | |
fb1d9738 JB |
323 | }; |
324 | ||
325 | /** | |
326 | * struct drm_vmw_fence_rep | |
327 | * | |
328 | * @fence_seq: Fence sequence associated with a command submission. | |
329 | * @error: This member should've been set to -EFAULT on submission. | |
330 | * The following actions should be take on completion: | |
331 | * error == -EFAULT: Fence communication failed. The host is synchronized. | |
332 | * Use the last fence id read from the FIFO fence register. | |
333 | * error != 0 && error != -EFAULT: | |
334 | * Fence submission failed. The host is synchronized. Use the fence_seq member. | |
335 | * error == 0: All is OK, The host may not be synchronized. | |
336 | * Use the fence_seq member. | |
337 | * | |
338 | * Input / Output data to the DRM_VMW_EXECBUF Ioctl. | |
339 | */ | |
340 | ||
341 | struct drm_vmw_fence_rep { | |
342 | uint64_t fence_seq; | |
343 | int32_t error; | |
344 | uint32_t pad64; | |
345 | }; | |
346 | ||
347 | /*************************************************************************/ | |
348 | /** | |
349 | * DRM_VMW_ALLOC_DMABUF | |
350 | * | |
351 | * Allocate a DMA buffer that is visible also to the host. | |
352 | * NOTE: The buffer is | |
353 | * identified by a handle and an offset, which are private to the guest, but | |
354 | * useable in the command stream. The guest kernel may translate these | |
355 | * and patch up the command stream accordingly. In the future, the offset may | |
356 | * be zero at all times, or it may disappear from the interface before it is | |
357 | * fixed. | |
358 | * | |
359 | * The DMA buffer may stay user-space mapped in the guest at all times, | |
360 | * and is thus suitable for sub-allocation. | |
361 | * | |
362 | * DMA buffers are mapped using the mmap() syscall on the drm device. | |
363 | */ | |
364 | ||
365 | /** | |
366 | * struct drm_vmw_alloc_dmabuf_req | |
367 | * | |
368 | * @size: Required minimum size of the buffer. | |
369 | * | |
370 | * Input data to the DRM_VMW_ALLOC_DMABUF Ioctl. | |
371 | */ | |
372 | ||
373 | struct drm_vmw_alloc_dmabuf_req { | |
374 | uint32_t size; | |
375 | uint32_t pad64; | |
376 | }; | |
377 | ||
378 | /** | |
379 | * struct drm_vmw_dmabuf_rep | |
380 | * | |
381 | * @map_handle: Offset to use in the mmap() call used to map the buffer. | |
382 | * @handle: Handle unique to this buffer. Used for unreferencing. | |
383 | * @cur_gmr_id: GMR id to use in the command stream when this buffer is | |
384 | * referenced. See not above. | |
385 | * @cur_gmr_offset: Offset to use in the command stream when this buffer is | |
386 | * referenced. See note above. | |
387 | * | |
388 | * Output data from the DRM_VMW_ALLOC_DMABUF Ioctl. | |
389 | */ | |
390 | ||
391 | struct drm_vmw_dmabuf_rep { | |
392 | uint64_t map_handle; | |
393 | uint32_t handle; | |
394 | uint32_t cur_gmr_id; | |
395 | uint32_t cur_gmr_offset; | |
396 | uint32_t pad64; | |
397 | }; | |
398 | ||
399 | /** | |
400 | * union drm_vmw_dmabuf_arg | |
401 | * | |
402 | * @req: Input data as described above. | |
403 | * @rep: Output data as described above. | |
404 | * | |
405 | * Argument to the DRM_VMW_ALLOC_DMABUF Ioctl. | |
406 | */ | |
407 | ||
408 | union drm_vmw_alloc_dmabuf_arg { | |
409 | struct drm_vmw_alloc_dmabuf_req req; | |
410 | struct drm_vmw_dmabuf_rep rep; | |
411 | }; | |
412 | ||
413 | /*************************************************************************/ | |
414 | /** | |
415 | * DRM_VMW_UNREF_DMABUF - Free a DMA buffer. | |
416 | * | |
417 | */ | |
418 | ||
419 | /** | |
420 | * struct drm_vmw_unref_dmabuf_arg | |
421 | * | |
422 | * @handle: Handle indicating what buffer to free. Obtained from the | |
423 | * DRM_VMW_ALLOC_DMABUF Ioctl. | |
424 | * | |
425 | * Argument to the DRM_VMW_UNREF_DMABUF Ioctl. | |
426 | */ | |
427 | ||
428 | struct drm_vmw_unref_dmabuf_arg { | |
429 | uint32_t handle; | |
430 | uint32_t pad64; | |
431 | }; | |
432 | ||
433 | /*************************************************************************/ | |
434 | /** | |
435 | * DRM_VMW_FIFO_DEBUG - Get last FIFO submission. | |
436 | * | |
437 | * This IOCTL copies the last FIFO submission directly out of the FIFO buffer. | |
438 | */ | |
439 | ||
440 | /** | |
441 | * struct drm_vmw_fifo_debug_arg | |
442 | * | |
443 | * @debug_buffer: User space address of a debug_buffer cast to an uint64_t //In | |
444 | * @debug_buffer_size: Size in bytes of debug buffer //In | |
445 | * @used_size: Number of bytes copied to the buffer // Out | |
446 | * @did_not_fit: Boolean indicating that the fifo contents did not fit. //Out | |
447 | * | |
448 | * Argument to the DRM_VMW_FIFO_DEBUG Ioctl. | |
449 | */ | |
450 | ||
451 | struct drm_vmw_fifo_debug_arg { | |
452 | uint64_t debug_buffer; | |
453 | uint32_t debug_buffer_size; | |
454 | uint32_t used_size; | |
455 | int32_t did_not_fit; | |
456 | uint32_t pad64; | |
457 | }; | |
458 | ||
459 | struct drm_vmw_fence_wait_arg { | |
460 | uint64_t sequence; | |
461 | uint64_t kernel_cookie; | |
462 | int32_t cookie_valid; | |
463 | int32_t pad64; | |
464 | }; | |
465 | ||
466 | /*************************************************************************/ | |
467 | /** | |
468 | * DRM_VMW_CONTROL_STREAM - Control overlays, aka streams. | |
469 | * | |
470 | * This IOCTL controls the overlay units of the svga device. | |
471 | * The SVGA overlay units does not work like regular hardware units in | |
472 | * that they do not automaticaly read back the contents of the given dma | |
473 | * buffer. But instead only read back for each call to this ioctl, and | |
474 | * at any point between this call being made and a following call that | |
475 | * either changes the buffer or disables the stream. | |
476 | */ | |
477 | ||
478 | /** | |
479 | * struct drm_vmw_rect | |
480 | * | |
481 | * Defines a rectangle. Used in the overlay ioctl to define | |
482 | * source and destination rectangle. | |
483 | */ | |
484 | ||
485 | struct drm_vmw_rect { | |
486 | int32_t x; | |
487 | int32_t y; | |
488 | uint32_t w; | |
489 | uint32_t h; | |
490 | }; | |
491 | ||
492 | /** | |
493 | * struct drm_vmw_control_stream_arg | |
494 | * | |
495 | * @stream_id: Stearm to control | |
496 | * @enabled: If false all following arguments are ignored. | |
497 | * @handle: Handle to buffer for getting data from. | |
498 | * @format: Format of the overlay as understood by the host. | |
499 | * @width: Width of the overlay. | |
500 | * @height: Height of the overlay. | |
501 | * @size: Size of the overlay in bytes. | |
502 | * @pitch: Array of pitches, the two last are only used for YUV12 formats. | |
503 | * @offset: Offset from start of dma buffer to overlay. | |
504 | * @src: Source rect, must be within the defined area above. | |
505 | * @dst: Destination rect, x and y may be negative. | |
506 | * | |
507 | * Argument to the DRM_VMW_CONTROL_STREAM Ioctl. | |
508 | */ | |
509 | ||
510 | struct drm_vmw_control_stream_arg { | |
511 | uint32_t stream_id; | |
512 | uint32_t enabled; | |
513 | ||
514 | uint32_t flags; | |
515 | uint32_t color_key; | |
516 | ||
517 | uint32_t handle; | |
518 | uint32_t offset; | |
519 | int32_t format; | |
520 | uint32_t size; | |
521 | uint32_t width; | |
522 | uint32_t height; | |
523 | uint32_t pitch[3]; | |
524 | ||
525 | uint32_t pad64; | |
526 | struct drm_vmw_rect src; | |
527 | struct drm_vmw_rect dst; | |
528 | }; | |
529 | ||
530 | /*************************************************************************/ | |
531 | /** | |
532 | * DRM_VMW_CURSOR_BYPASS - Give extra information about cursor bypass. | |
533 | * | |
534 | */ | |
535 | ||
536 | #define DRM_VMW_CURSOR_BYPASS_ALL (1 << 0) | |
537 | #define DRM_VMW_CURSOR_BYPASS_FLAGS (1) | |
538 | ||
539 | /** | |
540 | * struct drm_vmw_cursor_bypass_arg | |
541 | * | |
542 | * @flags: Flags. | |
543 | * @crtc_id: Crtc id, only used if DMR_CURSOR_BYPASS_ALL isn't passed. | |
544 | * @xpos: X position of cursor. | |
545 | * @ypos: Y position of cursor. | |
546 | * @xhot: X hotspot. | |
547 | * @yhot: Y hotspot. | |
548 | * | |
549 | * Argument to the DRM_VMW_CURSOR_BYPASS Ioctl. | |
550 | */ | |
551 | ||
552 | struct drm_vmw_cursor_bypass_arg { | |
553 | uint32_t flags; | |
554 | uint32_t crtc_id; | |
555 | int32_t xpos; | |
556 | int32_t ypos; | |
557 | int32_t xhot; | |
558 | int32_t yhot; | |
559 | }; | |
560 | ||
561 | /*************************************************************************/ | |
562 | /** | |
563 | * DRM_VMW_CLAIM_STREAM - Claim a single stream. | |
564 | */ | |
565 | ||
566 | /** | |
567 | * struct drm_vmw_context_arg | |
568 | * | |
569 | * @stream_id: Device unique context ID. | |
570 | * | |
571 | * Output argument to the DRM_VMW_CREATE_CONTEXT Ioctl. | |
572 | * Input argument to the DRM_VMW_UNREF_CONTEXT Ioctl. | |
573 | */ | |
574 | ||
575 | struct drm_vmw_stream_arg { | |
576 | uint32_t stream_id; | |
577 | uint32_t pad64; | |
578 | }; | |
579 | ||
580 | /*************************************************************************/ | |
581 | /** | |
582 | * DRM_VMW_UNREF_STREAM - Unclaim a stream. | |
583 | * | |
584 | * Return a single stream that was claimed by this process. Also makes | |
585 | * sure that the stream has been stopped. | |
586 | */ | |
587 | ||
588 | #endif |