xref: /openbmc/linux/include/uapi/drm/i915_drm.h (revision 4161b450)
1 /*
2  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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
7  * "Software"), to deal in the Software without restriction, including
8  * without limitation the rights to use, copy, modify, merge, publish,
9  * distribute, sub license, and/or sell copies of the Software, and to
10  * permit persons to whom the Software is furnished to do so, subject to
11  * the following conditions:
12  *
13  * The above copyright notice and this permission notice (including the
14  * next paragraph) shall be included in all copies or substantial portions
15  * of the Software.
16  *
17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
21  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24  *
25  */
26 
27 #ifndef _UAPI_I915_DRM_H_
28 #define _UAPI_I915_DRM_H_
29 
30 #include <drm/drm.h>
31 
32 /* Please note that modifications to all structs defined here are
33  * subject to backwards-compatibility constraints.
34  */
35 
36 /**
37  * DOC: uevents generated by i915 on it's device node
38  *
39  * I915_L3_PARITY_UEVENT - Generated when the driver receives a parity mismatch
40  *	event from the gpu l3 cache. Additional information supplied is ROW,
41  *	BANK, SUBBANK, SLICE of the affected cacheline. Userspace should keep
42  *	track of these events and if a specific cache-line seems to have a
43  *	persistent error remap it with the l3 remapping tool supplied in
44  *	intel-gpu-tools.  The value supplied with the event is always 1.
45  *
46  * I915_ERROR_UEVENT - Generated upon error detection, currently only via
47  *	hangcheck. The error detection event is a good indicator of when things
48  *	began to go badly. The value supplied with the event is a 1 upon error
49  *	detection, and a 0 upon reset completion, signifying no more error
50  *	exists. NOTE: Disabling hangcheck or reset via module parameter will
51  *	cause the related events to not be seen.
52  *
53  * I915_RESET_UEVENT - Event is generated just before an attempt to reset the
54  *	the GPU. The value supplied with the event is always 1. NOTE: Disable
55  *	reset via module parameter will cause this event to not be seen.
56  */
57 #define I915_L3_PARITY_UEVENT		"L3_PARITY_ERROR"
58 #define I915_ERROR_UEVENT		"ERROR"
59 #define I915_RESET_UEVENT		"RESET"
60 
61 /* Each region is a minimum of 16k, and there are at most 255 of them.
62  */
63 #define I915_NR_TEX_REGIONS 255	/* table size 2k - maximum due to use
64 				 * of chars for next/prev indices */
65 #define I915_LOG_MIN_TEX_REGION_SIZE 14
66 
67 typedef struct _drm_i915_init {
68 	enum {
69 		I915_INIT_DMA = 0x01,
70 		I915_CLEANUP_DMA = 0x02,
71 		I915_RESUME_DMA = 0x03
72 	} func;
73 	unsigned int mmio_offset;
74 	int sarea_priv_offset;
75 	unsigned int ring_start;
76 	unsigned int ring_end;
77 	unsigned int ring_size;
78 	unsigned int front_offset;
79 	unsigned int back_offset;
80 	unsigned int depth_offset;
81 	unsigned int w;
82 	unsigned int h;
83 	unsigned int pitch;
84 	unsigned int pitch_bits;
85 	unsigned int back_pitch;
86 	unsigned int depth_pitch;
87 	unsigned int cpp;
88 	unsigned int chipset;
89 } drm_i915_init_t;
90 
91 typedef struct _drm_i915_sarea {
92 	struct drm_tex_region texList[I915_NR_TEX_REGIONS + 1];
93 	int last_upload;	/* last time texture was uploaded */
94 	int last_enqueue;	/* last time a buffer was enqueued */
95 	int last_dispatch;	/* age of the most recently dispatched buffer */
96 	int ctxOwner;		/* last context to upload state */
97 	int texAge;
98 	int pf_enabled;		/* is pageflipping allowed? */
99 	int pf_active;
100 	int pf_current_page;	/* which buffer is being displayed? */
101 	int perf_boxes;		/* performance boxes to be displayed */
102 	int width, height;      /* screen size in pixels */
103 
104 	drm_handle_t front_handle;
105 	int front_offset;
106 	int front_size;
107 
108 	drm_handle_t back_handle;
109 	int back_offset;
110 	int back_size;
111 
112 	drm_handle_t depth_handle;
113 	int depth_offset;
114 	int depth_size;
115 
116 	drm_handle_t tex_handle;
117 	int tex_offset;
118 	int tex_size;
119 	int log_tex_granularity;
120 	int pitch;
121 	int rotation;           /* 0, 90, 180 or 270 */
122 	int rotated_offset;
123 	int rotated_size;
124 	int rotated_pitch;
125 	int virtualX, virtualY;
126 
127 	unsigned int front_tiled;
128 	unsigned int back_tiled;
129 	unsigned int depth_tiled;
130 	unsigned int rotated_tiled;
131 	unsigned int rotated2_tiled;
132 
133 	int pipeA_x;
134 	int pipeA_y;
135 	int pipeA_w;
136 	int pipeA_h;
137 	int pipeB_x;
138 	int pipeB_y;
139 	int pipeB_w;
140 	int pipeB_h;
141 
142 	/* fill out some space for old userspace triple buffer */
143 	drm_handle_t unused_handle;
144 	__u32 unused1, unused2, unused3;
145 
146 	/* buffer object handles for static buffers. May change
147 	 * over the lifetime of the client.
148 	 */
149 	__u32 front_bo_handle;
150 	__u32 back_bo_handle;
151 	__u32 unused_bo_handle;
152 	__u32 depth_bo_handle;
153 
154 } drm_i915_sarea_t;
155 
156 /* due to userspace building against these headers we need some compat here */
157 #define planeA_x pipeA_x
158 #define planeA_y pipeA_y
159 #define planeA_w pipeA_w
160 #define planeA_h pipeA_h
161 #define planeB_x pipeB_x
162 #define planeB_y pipeB_y
163 #define planeB_w pipeB_w
164 #define planeB_h pipeB_h
165 
166 /* Flags for perf_boxes
167  */
168 #define I915_BOX_RING_EMPTY    0x1
169 #define I915_BOX_FLIP          0x2
170 #define I915_BOX_WAIT          0x4
171 #define I915_BOX_TEXTURE_LOAD  0x8
172 #define I915_BOX_LOST_CONTEXT  0x10
173 
174 /* I915 specific ioctls
175  * The device specific ioctl range is 0x40 to 0x79.
176  */
177 #define DRM_I915_INIT		0x00
178 #define DRM_I915_FLUSH		0x01
179 #define DRM_I915_FLIP		0x02
180 #define DRM_I915_BATCHBUFFER	0x03
181 #define DRM_I915_IRQ_EMIT	0x04
182 #define DRM_I915_IRQ_WAIT	0x05
183 #define DRM_I915_GETPARAM	0x06
184 #define DRM_I915_SETPARAM	0x07
185 #define DRM_I915_ALLOC		0x08
186 #define DRM_I915_FREE		0x09
187 #define DRM_I915_INIT_HEAP	0x0a
188 #define DRM_I915_CMDBUFFER	0x0b
189 #define DRM_I915_DESTROY_HEAP	0x0c
190 #define DRM_I915_SET_VBLANK_PIPE	0x0d
191 #define DRM_I915_GET_VBLANK_PIPE	0x0e
192 #define DRM_I915_VBLANK_SWAP	0x0f
193 #define DRM_I915_HWS_ADDR	0x11
194 #define DRM_I915_GEM_INIT	0x13
195 #define DRM_I915_GEM_EXECBUFFER	0x14
196 #define DRM_I915_GEM_PIN	0x15
197 #define DRM_I915_GEM_UNPIN	0x16
198 #define DRM_I915_GEM_BUSY	0x17
199 #define DRM_I915_GEM_THROTTLE	0x18
200 #define DRM_I915_GEM_ENTERVT	0x19
201 #define DRM_I915_GEM_LEAVEVT	0x1a
202 #define DRM_I915_GEM_CREATE	0x1b
203 #define DRM_I915_GEM_PREAD	0x1c
204 #define DRM_I915_GEM_PWRITE	0x1d
205 #define DRM_I915_GEM_MMAP	0x1e
206 #define DRM_I915_GEM_SET_DOMAIN	0x1f
207 #define DRM_I915_GEM_SW_FINISH	0x20
208 #define DRM_I915_GEM_SET_TILING	0x21
209 #define DRM_I915_GEM_GET_TILING	0x22
210 #define DRM_I915_GEM_GET_APERTURE 0x23
211 #define DRM_I915_GEM_MMAP_GTT	0x24
212 #define DRM_I915_GET_PIPE_FROM_CRTC_ID	0x25
213 #define DRM_I915_GEM_MADVISE	0x26
214 #define DRM_I915_OVERLAY_PUT_IMAGE	0x27
215 #define DRM_I915_OVERLAY_ATTRS	0x28
216 #define DRM_I915_GEM_EXECBUFFER2	0x29
217 #define DRM_I915_GET_SPRITE_COLORKEY	0x2a
218 #define DRM_I915_SET_SPRITE_COLORKEY	0x2b
219 #define DRM_I915_GEM_WAIT	0x2c
220 #define DRM_I915_GEM_CONTEXT_CREATE	0x2d
221 #define DRM_I915_GEM_CONTEXT_DESTROY	0x2e
222 #define DRM_I915_GEM_SET_CACHING	0x2f
223 #define DRM_I915_GEM_GET_CACHING	0x30
224 #define DRM_I915_REG_READ		0x31
225 #define DRM_I915_GET_RESET_STATS	0x32
226 #define DRM_I915_GEM_USERPTR		0x33
227 
228 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
229 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
230 #define DRM_IOCTL_I915_FLIP		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLIP)
231 #define DRM_IOCTL_I915_BATCHBUFFER	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_BATCHBUFFER, drm_i915_batchbuffer_t)
232 #define DRM_IOCTL_I915_IRQ_EMIT         DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_IRQ_EMIT, drm_i915_irq_emit_t)
233 #define DRM_IOCTL_I915_IRQ_WAIT         DRM_IOW( DRM_COMMAND_BASE + DRM_I915_IRQ_WAIT, drm_i915_irq_wait_t)
234 #define DRM_IOCTL_I915_GETPARAM         DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GETPARAM, drm_i915_getparam_t)
235 #define DRM_IOCTL_I915_SETPARAM         DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SETPARAM, drm_i915_setparam_t)
236 #define DRM_IOCTL_I915_ALLOC            DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_ALLOC, drm_i915_mem_alloc_t)
237 #define DRM_IOCTL_I915_FREE             DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FREE, drm_i915_mem_free_t)
238 #define DRM_IOCTL_I915_INIT_HEAP        DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT_HEAP, drm_i915_mem_init_heap_t)
239 #define DRM_IOCTL_I915_CMDBUFFER	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_CMDBUFFER, drm_i915_cmdbuffer_t)
240 #define DRM_IOCTL_I915_DESTROY_HEAP	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_DESTROY_HEAP, drm_i915_mem_destroy_heap_t)
241 #define DRM_IOCTL_I915_SET_VBLANK_PIPE	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
242 #define DRM_IOCTL_I915_GET_VBLANK_PIPE	DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
243 #define DRM_IOCTL_I915_VBLANK_SWAP	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t)
244 #define DRM_IOCTL_I915_HWS_ADDR		DRM_IOW(DRM_COMMAND_BASE + DRM_I915_HWS_ADDR, struct drm_i915_gem_init)
245 #define DRM_IOCTL_I915_GEM_INIT		DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_INIT, struct drm_i915_gem_init)
246 #define DRM_IOCTL_I915_GEM_EXECBUFFER	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER, struct drm_i915_gem_execbuffer)
247 #define DRM_IOCTL_I915_GEM_EXECBUFFER2	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER2, struct drm_i915_gem_execbuffer2)
248 #define DRM_IOCTL_I915_GEM_PIN		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_PIN, struct drm_i915_gem_pin)
249 #define DRM_IOCTL_I915_GEM_UNPIN	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_UNPIN, struct drm_i915_gem_unpin)
250 #define DRM_IOCTL_I915_GEM_BUSY		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_BUSY, struct drm_i915_gem_busy)
251 #define DRM_IOCTL_I915_GEM_SET_CACHING		DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_SET_CACHING, struct drm_i915_gem_caching)
252 #define DRM_IOCTL_I915_GEM_GET_CACHING		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_GET_CACHING, struct drm_i915_gem_caching)
253 #define DRM_IOCTL_I915_GEM_THROTTLE	DRM_IO ( DRM_COMMAND_BASE + DRM_I915_GEM_THROTTLE)
254 #define DRM_IOCTL_I915_GEM_ENTERVT	DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_ENTERVT)
255 #define DRM_IOCTL_I915_GEM_LEAVEVT	DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_LEAVEVT)
256 #define DRM_IOCTL_I915_GEM_CREATE	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create)
257 #define DRM_IOCTL_I915_GEM_PREAD	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PREAD, struct drm_i915_gem_pread)
258 #define DRM_IOCTL_I915_GEM_PWRITE	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PWRITE, struct drm_i915_gem_pwrite)
259 #define DRM_IOCTL_I915_GEM_MMAP		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP, struct drm_i915_gem_mmap)
260 #define DRM_IOCTL_I915_GEM_MMAP_GTT	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP_GTT, struct drm_i915_gem_mmap_gtt)
261 #define DRM_IOCTL_I915_GEM_SET_DOMAIN	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SET_DOMAIN, struct drm_i915_gem_set_domain)
262 #define DRM_IOCTL_I915_GEM_SW_FINISH	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SW_FINISH, struct drm_i915_gem_sw_finish)
263 #define DRM_IOCTL_I915_GEM_SET_TILING	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_SET_TILING, struct drm_i915_gem_set_tiling)
264 #define DRM_IOCTL_I915_GEM_GET_TILING	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_TILING, struct drm_i915_gem_get_tiling)
265 #define DRM_IOCTL_I915_GEM_GET_APERTURE	DRM_IOR  (DRM_COMMAND_BASE + DRM_I915_GEM_GET_APERTURE, struct drm_i915_gem_get_aperture)
266 #define DRM_IOCTL_I915_GET_PIPE_FROM_CRTC_ID DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GET_PIPE_FROM_CRTC_ID, struct drm_i915_get_pipe_from_crtc_id)
267 #define DRM_IOCTL_I915_GEM_MADVISE	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MADVISE, struct drm_i915_gem_madvise)
268 #define DRM_IOCTL_I915_OVERLAY_PUT_IMAGE	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_OVERLAY_PUT_IMAGE, struct drm_intel_overlay_put_image)
269 #define DRM_IOCTL_I915_OVERLAY_ATTRS	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_OVERLAY_ATTRS, struct drm_intel_overlay_attrs)
270 #define DRM_IOCTL_I915_SET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
271 #define DRM_IOCTL_I915_GET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
272 #define DRM_IOCTL_I915_GEM_WAIT		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_WAIT, struct drm_i915_gem_wait)
273 #define DRM_IOCTL_I915_GEM_CONTEXT_CREATE	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_CREATE, struct drm_i915_gem_context_create)
274 #define DRM_IOCTL_I915_GEM_CONTEXT_DESTROY	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_DESTROY, struct drm_i915_gem_context_destroy)
275 #define DRM_IOCTL_I915_REG_READ			DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_REG_READ, struct drm_i915_reg_read)
276 #define DRM_IOCTL_I915_GET_RESET_STATS		DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GET_RESET_STATS, struct drm_i915_reset_stats)
277 #define DRM_IOCTL_I915_GEM_USERPTR			DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_USERPTR, struct drm_i915_gem_userptr)
278 
279 /* Allow drivers to submit batchbuffers directly to hardware, relying
280  * on the security mechanisms provided by hardware.
281  */
282 typedef struct drm_i915_batchbuffer {
283 	int start;		/* agp offset */
284 	int used;		/* nr bytes in use */
285 	int DR1;		/* hw flags for GFX_OP_DRAWRECT_INFO */
286 	int DR4;		/* window origin for GFX_OP_DRAWRECT_INFO */
287 	int num_cliprects;	/* mulitpass with multiple cliprects? */
288 	struct drm_clip_rect __user *cliprects;	/* pointer to userspace cliprects */
289 } drm_i915_batchbuffer_t;
290 
291 /* As above, but pass a pointer to userspace buffer which can be
292  * validated by the kernel prior to sending to hardware.
293  */
294 typedef struct _drm_i915_cmdbuffer {
295 	char __user *buf;	/* pointer to userspace command buffer */
296 	int sz;			/* nr bytes in buf */
297 	int DR1;		/* hw flags for GFX_OP_DRAWRECT_INFO */
298 	int DR4;		/* window origin for GFX_OP_DRAWRECT_INFO */
299 	int num_cliprects;	/* mulitpass with multiple cliprects? */
300 	struct drm_clip_rect __user *cliprects;	/* pointer to userspace cliprects */
301 } drm_i915_cmdbuffer_t;
302 
303 /* Userspace can request & wait on irq's:
304  */
305 typedef struct drm_i915_irq_emit {
306 	int __user *irq_seq;
307 } drm_i915_irq_emit_t;
308 
309 typedef struct drm_i915_irq_wait {
310 	int irq_seq;
311 } drm_i915_irq_wait_t;
312 
313 /* Ioctl to query kernel params:
314  */
315 #define I915_PARAM_IRQ_ACTIVE            1
316 #define I915_PARAM_ALLOW_BATCHBUFFER     2
317 #define I915_PARAM_LAST_DISPATCH         3
318 #define I915_PARAM_CHIPSET_ID            4
319 #define I915_PARAM_HAS_GEM               5
320 #define I915_PARAM_NUM_FENCES_AVAIL      6
321 #define I915_PARAM_HAS_OVERLAY           7
322 #define I915_PARAM_HAS_PAGEFLIPPING	 8
323 #define I915_PARAM_HAS_EXECBUF2          9
324 #define I915_PARAM_HAS_BSD		 10
325 #define I915_PARAM_HAS_BLT		 11
326 #define I915_PARAM_HAS_RELAXED_FENCING	 12
327 #define I915_PARAM_HAS_COHERENT_RINGS	 13
328 #define I915_PARAM_HAS_EXEC_CONSTANTS	 14
329 #define I915_PARAM_HAS_RELAXED_DELTA	 15
330 #define I915_PARAM_HAS_GEN7_SOL_RESET	 16
331 #define I915_PARAM_HAS_LLC     	 	 17
332 #define I915_PARAM_HAS_ALIASING_PPGTT	 18
333 #define I915_PARAM_HAS_WAIT_TIMEOUT	 19
334 #define I915_PARAM_HAS_SEMAPHORES	 20
335 #define I915_PARAM_HAS_PRIME_VMAP_FLUSH	 21
336 #define I915_PARAM_HAS_VEBOX		 22
337 #define I915_PARAM_HAS_SECURE_BATCHES	 23
338 #define I915_PARAM_HAS_PINNED_BATCHES	 24
339 #define I915_PARAM_HAS_EXEC_NO_RELOC	 25
340 #define I915_PARAM_HAS_EXEC_HANDLE_LUT   26
341 #define I915_PARAM_HAS_WT     	 	 27
342 #define I915_PARAM_CMD_PARSER_VERSION	 28
343 #define I915_PARAM_HAS_COHERENT_PHYS_GTT 29
344 
345 typedef struct drm_i915_getparam {
346 	int param;
347 	int __user *value;
348 } drm_i915_getparam_t;
349 
350 /* Ioctl to set kernel params:
351  */
352 #define I915_SETPARAM_USE_MI_BATCHBUFFER_START            1
353 #define I915_SETPARAM_TEX_LRU_LOG_GRANULARITY             2
354 #define I915_SETPARAM_ALLOW_BATCHBUFFER                   3
355 #define I915_SETPARAM_NUM_USED_FENCES                     4
356 
357 typedef struct drm_i915_setparam {
358 	int param;
359 	int value;
360 } drm_i915_setparam_t;
361 
362 /* A memory manager for regions of shared memory:
363  */
364 #define I915_MEM_REGION_AGP 1
365 
366 typedef struct drm_i915_mem_alloc {
367 	int region;
368 	int alignment;
369 	int size;
370 	int __user *region_offset;	/* offset from start of fb or agp */
371 } drm_i915_mem_alloc_t;
372 
373 typedef struct drm_i915_mem_free {
374 	int region;
375 	int region_offset;
376 } drm_i915_mem_free_t;
377 
378 typedef struct drm_i915_mem_init_heap {
379 	int region;
380 	int size;
381 	int start;
382 } drm_i915_mem_init_heap_t;
383 
384 /* Allow memory manager to be torn down and re-initialized (eg on
385  * rotate):
386  */
387 typedef struct drm_i915_mem_destroy_heap {
388 	int region;
389 } drm_i915_mem_destroy_heap_t;
390 
391 /* Allow X server to configure which pipes to monitor for vblank signals
392  */
393 #define	DRM_I915_VBLANK_PIPE_A	1
394 #define	DRM_I915_VBLANK_PIPE_B	2
395 
396 typedef struct drm_i915_vblank_pipe {
397 	int pipe;
398 } drm_i915_vblank_pipe_t;
399 
400 /* Schedule buffer swap at given vertical blank:
401  */
402 typedef struct drm_i915_vblank_swap {
403 	drm_drawable_t drawable;
404 	enum drm_vblank_seq_type seqtype;
405 	unsigned int sequence;
406 } drm_i915_vblank_swap_t;
407 
408 typedef struct drm_i915_hws_addr {
409 	__u64 addr;
410 } drm_i915_hws_addr_t;
411 
412 struct drm_i915_gem_init {
413 	/**
414 	 * Beginning offset in the GTT to be managed by the DRM memory
415 	 * manager.
416 	 */
417 	__u64 gtt_start;
418 	/**
419 	 * Ending offset in the GTT to be managed by the DRM memory
420 	 * manager.
421 	 */
422 	__u64 gtt_end;
423 };
424 
425 struct drm_i915_gem_create {
426 	/**
427 	 * Requested size for the object.
428 	 *
429 	 * The (page-aligned) allocated size for the object will be returned.
430 	 */
431 	__u64 size;
432 	/**
433 	 * Returned handle for the object.
434 	 *
435 	 * Object handles are nonzero.
436 	 */
437 	__u32 handle;
438 	__u32 pad;
439 };
440 
441 struct drm_i915_gem_pread {
442 	/** Handle for the object being read. */
443 	__u32 handle;
444 	__u32 pad;
445 	/** Offset into the object to read from */
446 	__u64 offset;
447 	/** Length of data to read */
448 	__u64 size;
449 	/**
450 	 * Pointer to write the data into.
451 	 *
452 	 * This is a fixed-size type for 32/64 compatibility.
453 	 */
454 	__u64 data_ptr;
455 };
456 
457 struct drm_i915_gem_pwrite {
458 	/** Handle for the object being written to. */
459 	__u32 handle;
460 	__u32 pad;
461 	/** Offset into the object to write to */
462 	__u64 offset;
463 	/** Length of data to write */
464 	__u64 size;
465 	/**
466 	 * Pointer to read the data from.
467 	 *
468 	 * This is a fixed-size type for 32/64 compatibility.
469 	 */
470 	__u64 data_ptr;
471 };
472 
473 struct drm_i915_gem_mmap {
474 	/** Handle for the object being mapped. */
475 	__u32 handle;
476 	__u32 pad;
477 	/** Offset in the object to map. */
478 	__u64 offset;
479 	/**
480 	 * Length of data to map.
481 	 *
482 	 * The value will be page-aligned.
483 	 */
484 	__u64 size;
485 	/**
486 	 * Returned pointer the data was mapped at.
487 	 *
488 	 * This is a fixed-size type for 32/64 compatibility.
489 	 */
490 	__u64 addr_ptr;
491 };
492 
493 struct drm_i915_gem_mmap_gtt {
494 	/** Handle for the object being mapped. */
495 	__u32 handle;
496 	__u32 pad;
497 	/**
498 	 * Fake offset to use for subsequent mmap call
499 	 *
500 	 * This is a fixed-size type for 32/64 compatibility.
501 	 */
502 	__u64 offset;
503 };
504 
505 struct drm_i915_gem_set_domain {
506 	/** Handle for the object */
507 	__u32 handle;
508 
509 	/** New read domains */
510 	__u32 read_domains;
511 
512 	/** New write domain */
513 	__u32 write_domain;
514 };
515 
516 struct drm_i915_gem_sw_finish {
517 	/** Handle for the object */
518 	__u32 handle;
519 };
520 
521 struct drm_i915_gem_relocation_entry {
522 	/**
523 	 * Handle of the buffer being pointed to by this relocation entry.
524 	 *
525 	 * It's appealing to make this be an index into the mm_validate_entry
526 	 * list to refer to the buffer, but this allows the driver to create
527 	 * a relocation list for state buffers and not re-write it per
528 	 * exec using the buffer.
529 	 */
530 	__u32 target_handle;
531 
532 	/**
533 	 * Value to be added to the offset of the target buffer to make up
534 	 * the relocation entry.
535 	 */
536 	__u32 delta;
537 
538 	/** Offset in the buffer the relocation entry will be written into */
539 	__u64 offset;
540 
541 	/**
542 	 * Offset value of the target buffer that the relocation entry was last
543 	 * written as.
544 	 *
545 	 * If the buffer has the same offset as last time, we can skip syncing
546 	 * and writing the relocation.  This value is written back out by
547 	 * the execbuffer ioctl when the relocation is written.
548 	 */
549 	__u64 presumed_offset;
550 
551 	/**
552 	 * Target memory domains read by this operation.
553 	 */
554 	__u32 read_domains;
555 
556 	/**
557 	 * Target memory domains written by this operation.
558 	 *
559 	 * Note that only one domain may be written by the whole
560 	 * execbuffer operation, so that where there are conflicts,
561 	 * the application will get -EINVAL back.
562 	 */
563 	__u32 write_domain;
564 };
565 
566 /** @{
567  * Intel memory domains
568  *
569  * Most of these just align with the various caches in
570  * the system and are used to flush and invalidate as
571  * objects end up cached in different domains.
572  */
573 /** CPU cache */
574 #define I915_GEM_DOMAIN_CPU		0x00000001
575 /** Render cache, used by 2D and 3D drawing */
576 #define I915_GEM_DOMAIN_RENDER		0x00000002
577 /** Sampler cache, used by texture engine */
578 #define I915_GEM_DOMAIN_SAMPLER		0x00000004
579 /** Command queue, used to load batch buffers */
580 #define I915_GEM_DOMAIN_COMMAND		0x00000008
581 /** Instruction cache, used by shader programs */
582 #define I915_GEM_DOMAIN_INSTRUCTION	0x00000010
583 /** Vertex address cache */
584 #define I915_GEM_DOMAIN_VERTEX		0x00000020
585 /** GTT domain - aperture and scanout */
586 #define I915_GEM_DOMAIN_GTT		0x00000040
587 /** @} */
588 
589 struct drm_i915_gem_exec_object {
590 	/**
591 	 * User's handle for a buffer to be bound into the GTT for this
592 	 * operation.
593 	 */
594 	__u32 handle;
595 
596 	/** Number of relocations to be performed on this buffer */
597 	__u32 relocation_count;
598 	/**
599 	 * Pointer to array of struct drm_i915_gem_relocation_entry containing
600 	 * the relocations to be performed in this buffer.
601 	 */
602 	__u64 relocs_ptr;
603 
604 	/** Required alignment in graphics aperture */
605 	__u64 alignment;
606 
607 	/**
608 	 * Returned value of the updated offset of the object, for future
609 	 * presumed_offset writes.
610 	 */
611 	__u64 offset;
612 };
613 
614 struct drm_i915_gem_execbuffer {
615 	/**
616 	 * List of buffers to be validated with their relocations to be
617 	 * performend on them.
618 	 *
619 	 * This is a pointer to an array of struct drm_i915_gem_validate_entry.
620 	 *
621 	 * These buffers must be listed in an order such that all relocations
622 	 * a buffer is performing refer to buffers that have already appeared
623 	 * in the validate list.
624 	 */
625 	__u64 buffers_ptr;
626 	__u32 buffer_count;
627 
628 	/** Offset in the batchbuffer to start execution from. */
629 	__u32 batch_start_offset;
630 	/** Bytes used in batchbuffer from batch_start_offset */
631 	__u32 batch_len;
632 	__u32 DR1;
633 	__u32 DR4;
634 	__u32 num_cliprects;
635 	/** This is a struct drm_clip_rect *cliprects */
636 	__u64 cliprects_ptr;
637 };
638 
639 struct drm_i915_gem_exec_object2 {
640 	/**
641 	 * User's handle for a buffer to be bound into the GTT for this
642 	 * operation.
643 	 */
644 	__u32 handle;
645 
646 	/** Number of relocations to be performed on this buffer */
647 	__u32 relocation_count;
648 	/**
649 	 * Pointer to array of struct drm_i915_gem_relocation_entry containing
650 	 * the relocations to be performed in this buffer.
651 	 */
652 	__u64 relocs_ptr;
653 
654 	/** Required alignment in graphics aperture */
655 	__u64 alignment;
656 
657 	/**
658 	 * Returned value of the updated offset of the object, for future
659 	 * presumed_offset writes.
660 	 */
661 	__u64 offset;
662 
663 #define EXEC_OBJECT_NEEDS_FENCE (1<<0)
664 #define EXEC_OBJECT_NEEDS_GTT	(1<<1)
665 #define EXEC_OBJECT_WRITE	(1<<2)
666 #define __EXEC_OBJECT_UNKNOWN_FLAGS -(EXEC_OBJECT_WRITE<<1)
667 	__u64 flags;
668 
669 	__u64 rsvd1;
670 	__u64 rsvd2;
671 };
672 
673 struct drm_i915_gem_execbuffer2 {
674 	/**
675 	 * List of gem_exec_object2 structs
676 	 */
677 	__u64 buffers_ptr;
678 	__u32 buffer_count;
679 
680 	/** Offset in the batchbuffer to start execution from. */
681 	__u32 batch_start_offset;
682 	/** Bytes used in batchbuffer from batch_start_offset */
683 	__u32 batch_len;
684 	__u32 DR1;
685 	__u32 DR4;
686 	__u32 num_cliprects;
687 	/** This is a struct drm_clip_rect *cliprects */
688 	__u64 cliprects_ptr;
689 #define I915_EXEC_RING_MASK              (7<<0)
690 #define I915_EXEC_DEFAULT                (0<<0)
691 #define I915_EXEC_RENDER                 (1<<0)
692 #define I915_EXEC_BSD                    (2<<0)
693 #define I915_EXEC_BLT                    (3<<0)
694 #define I915_EXEC_VEBOX                  (4<<0)
695 
696 /* Used for switching the constants addressing mode on gen4+ RENDER ring.
697  * Gen6+ only supports relative addressing to dynamic state (default) and
698  * absolute addressing.
699  *
700  * These flags are ignored for the BSD and BLT rings.
701  */
702 #define I915_EXEC_CONSTANTS_MASK 	(3<<6)
703 #define I915_EXEC_CONSTANTS_REL_GENERAL (0<<6) /* default */
704 #define I915_EXEC_CONSTANTS_ABSOLUTE 	(1<<6)
705 #define I915_EXEC_CONSTANTS_REL_SURFACE (2<<6) /* gen4/5 only */
706 	__u64 flags;
707 	__u64 rsvd1; /* now used for context info */
708 	__u64 rsvd2;
709 };
710 
711 /** Resets the SO write offset registers for transform feedback on gen7. */
712 #define I915_EXEC_GEN7_SOL_RESET	(1<<8)
713 
714 /** Request a privileged ("secure") batch buffer. Note only available for
715  * DRM_ROOT_ONLY | DRM_MASTER processes.
716  */
717 #define I915_EXEC_SECURE		(1<<9)
718 
719 /** Inform the kernel that the batch is and will always be pinned. This
720  * negates the requirement for a workaround to be performed to avoid
721  * an incoherent CS (such as can be found on 830/845). If this flag is
722  * not passed, the kernel will endeavour to make sure the batch is
723  * coherent with the CS before execution. If this flag is passed,
724  * userspace assumes the responsibility for ensuring the same.
725  */
726 #define I915_EXEC_IS_PINNED		(1<<10)
727 
728 /** Provide a hint to the kernel that the command stream and auxiliary
729  * state buffers already holds the correct presumed addresses and so the
730  * relocation process may be skipped if no buffers need to be moved in
731  * preparation for the execbuffer.
732  */
733 #define I915_EXEC_NO_RELOC		(1<<11)
734 
735 /** Use the reloc.handle as an index into the exec object array rather
736  * than as the per-file handle.
737  */
738 #define I915_EXEC_HANDLE_LUT		(1<<12)
739 
740 #define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_HANDLE_LUT<<1)
741 
742 #define I915_EXEC_CONTEXT_ID_MASK	(0xffffffff)
743 #define i915_execbuffer2_set_context_id(eb2, context) \
744 	(eb2).rsvd1 = context & I915_EXEC_CONTEXT_ID_MASK
745 #define i915_execbuffer2_get_context_id(eb2) \
746 	((eb2).rsvd1 & I915_EXEC_CONTEXT_ID_MASK)
747 
748 struct drm_i915_gem_pin {
749 	/** Handle of the buffer to be pinned. */
750 	__u32 handle;
751 	__u32 pad;
752 
753 	/** alignment required within the aperture */
754 	__u64 alignment;
755 
756 	/** Returned GTT offset of the buffer. */
757 	__u64 offset;
758 };
759 
760 struct drm_i915_gem_unpin {
761 	/** Handle of the buffer to be unpinned. */
762 	__u32 handle;
763 	__u32 pad;
764 };
765 
766 struct drm_i915_gem_busy {
767 	/** Handle of the buffer to check for busy */
768 	__u32 handle;
769 
770 	/** Return busy status (1 if busy, 0 if idle).
771 	 * The high word is used to indicate on which rings the object
772 	 * currently resides:
773 	 *  16:31 - busy (r or r/w) rings (16 render, 17 bsd, 18 blt, etc)
774 	 */
775 	__u32 busy;
776 };
777 
778 /**
779  * I915_CACHING_NONE
780  *
781  * GPU access is not coherent with cpu caches. Default for machines without an
782  * LLC.
783  */
784 #define I915_CACHING_NONE		0
785 /**
786  * I915_CACHING_CACHED
787  *
788  * GPU access is coherent with cpu caches and furthermore the data is cached in
789  * last-level caches shared between cpu cores and the gpu GT. Default on
790  * machines with HAS_LLC.
791  */
792 #define I915_CACHING_CACHED		1
793 /**
794  * I915_CACHING_DISPLAY
795  *
796  * Special GPU caching mode which is coherent with the scanout engines.
797  * Transparently falls back to I915_CACHING_NONE on platforms where no special
798  * cache mode (like write-through or gfdt flushing) is available. The kernel
799  * automatically sets this mode when using a buffer as a scanout target.
800  * Userspace can manually set this mode to avoid a costly stall and clflush in
801  * the hotpath of drawing the first frame.
802  */
803 #define I915_CACHING_DISPLAY		2
804 
805 struct drm_i915_gem_caching {
806 	/**
807 	 * Handle of the buffer to set/get the caching level of. */
808 	__u32 handle;
809 
810 	/**
811 	 * Cacheing level to apply or return value
812 	 *
813 	 * bits0-15 are for generic caching control (i.e. the above defined
814 	 * values). bits16-31 are reserved for platform-specific variations
815 	 * (e.g. l3$ caching on gen7). */
816 	__u32 caching;
817 };
818 
819 #define I915_TILING_NONE	0
820 #define I915_TILING_X		1
821 #define I915_TILING_Y		2
822 
823 #define I915_BIT_6_SWIZZLE_NONE		0
824 #define I915_BIT_6_SWIZZLE_9		1
825 #define I915_BIT_6_SWIZZLE_9_10		2
826 #define I915_BIT_6_SWIZZLE_9_11		3
827 #define I915_BIT_6_SWIZZLE_9_10_11	4
828 /* Not seen by userland */
829 #define I915_BIT_6_SWIZZLE_UNKNOWN	5
830 /* Seen by userland. */
831 #define I915_BIT_6_SWIZZLE_9_17		6
832 #define I915_BIT_6_SWIZZLE_9_10_17	7
833 
834 struct drm_i915_gem_set_tiling {
835 	/** Handle of the buffer to have its tiling state updated */
836 	__u32 handle;
837 
838 	/**
839 	 * Tiling mode for the object (I915_TILING_NONE, I915_TILING_X,
840 	 * I915_TILING_Y).
841 	 *
842 	 * This value is to be set on request, and will be updated by the
843 	 * kernel on successful return with the actual chosen tiling layout.
844 	 *
845 	 * The tiling mode may be demoted to I915_TILING_NONE when the system
846 	 * has bit 6 swizzling that can't be managed correctly by GEM.
847 	 *
848 	 * Buffer contents become undefined when changing tiling_mode.
849 	 */
850 	__u32 tiling_mode;
851 
852 	/**
853 	 * Stride in bytes for the object when in I915_TILING_X or
854 	 * I915_TILING_Y.
855 	 */
856 	__u32 stride;
857 
858 	/**
859 	 * Returned address bit 6 swizzling required for CPU access through
860 	 * mmap mapping.
861 	 */
862 	__u32 swizzle_mode;
863 };
864 
865 struct drm_i915_gem_get_tiling {
866 	/** Handle of the buffer to get tiling state for. */
867 	__u32 handle;
868 
869 	/**
870 	 * Current tiling mode for the object (I915_TILING_NONE, I915_TILING_X,
871 	 * I915_TILING_Y).
872 	 */
873 	__u32 tiling_mode;
874 
875 	/**
876 	 * Returned address bit 6 swizzling required for CPU access through
877 	 * mmap mapping.
878 	 */
879 	__u32 swizzle_mode;
880 
881 	/**
882 	 * Returned address bit 6 swizzling required for CPU access through
883 	 * mmap mapping whilst bound.
884 	 */
885 	__u32 phys_swizzle_mode;
886 };
887 
888 struct drm_i915_gem_get_aperture {
889 	/** Total size of the aperture used by i915_gem_execbuffer, in bytes */
890 	__u64 aper_size;
891 
892 	/**
893 	 * Available space in the aperture used by i915_gem_execbuffer, in
894 	 * bytes
895 	 */
896 	__u64 aper_available_size;
897 };
898 
899 struct drm_i915_get_pipe_from_crtc_id {
900 	/** ID of CRTC being requested **/
901 	__u32 crtc_id;
902 
903 	/** pipe of requested CRTC **/
904 	__u32 pipe;
905 };
906 
907 #define I915_MADV_WILLNEED 0
908 #define I915_MADV_DONTNEED 1
909 #define __I915_MADV_PURGED 2 /* internal state */
910 
911 struct drm_i915_gem_madvise {
912 	/** Handle of the buffer to change the backing store advice */
913 	__u32 handle;
914 
915 	/* Advice: either the buffer will be needed again in the near future,
916 	 *         or wont be and could be discarded under memory pressure.
917 	 */
918 	__u32 madv;
919 
920 	/** Whether the backing store still exists. */
921 	__u32 retained;
922 };
923 
924 /* flags */
925 #define I915_OVERLAY_TYPE_MASK 		0xff
926 #define I915_OVERLAY_YUV_PLANAR 	0x01
927 #define I915_OVERLAY_YUV_PACKED 	0x02
928 #define I915_OVERLAY_RGB		0x03
929 
930 #define I915_OVERLAY_DEPTH_MASK		0xff00
931 #define I915_OVERLAY_RGB24		0x1000
932 #define I915_OVERLAY_RGB16		0x2000
933 #define I915_OVERLAY_RGB15		0x3000
934 #define I915_OVERLAY_YUV422		0x0100
935 #define I915_OVERLAY_YUV411		0x0200
936 #define I915_OVERLAY_YUV420		0x0300
937 #define I915_OVERLAY_YUV410		0x0400
938 
939 #define I915_OVERLAY_SWAP_MASK		0xff0000
940 #define I915_OVERLAY_NO_SWAP		0x000000
941 #define I915_OVERLAY_UV_SWAP		0x010000
942 #define I915_OVERLAY_Y_SWAP		0x020000
943 #define I915_OVERLAY_Y_AND_UV_SWAP	0x030000
944 
945 #define I915_OVERLAY_FLAGS_MASK		0xff000000
946 #define I915_OVERLAY_ENABLE		0x01000000
947 
948 struct drm_intel_overlay_put_image {
949 	/* various flags and src format description */
950 	__u32 flags;
951 	/* source picture description */
952 	__u32 bo_handle;
953 	/* stride values and offsets are in bytes, buffer relative */
954 	__u16 stride_Y; /* stride for packed formats */
955 	__u16 stride_UV;
956 	__u32 offset_Y; /* offset for packet formats */
957 	__u32 offset_U;
958 	__u32 offset_V;
959 	/* in pixels */
960 	__u16 src_width;
961 	__u16 src_height;
962 	/* to compensate the scaling factors for partially covered surfaces */
963 	__u16 src_scan_width;
964 	__u16 src_scan_height;
965 	/* output crtc description */
966 	__u32 crtc_id;
967 	__u16 dst_x;
968 	__u16 dst_y;
969 	__u16 dst_width;
970 	__u16 dst_height;
971 };
972 
973 /* flags */
974 #define I915_OVERLAY_UPDATE_ATTRS	(1<<0)
975 #define I915_OVERLAY_UPDATE_GAMMA	(1<<1)
976 struct drm_intel_overlay_attrs {
977 	__u32 flags;
978 	__u32 color_key;
979 	__s32 brightness;
980 	__u32 contrast;
981 	__u32 saturation;
982 	__u32 gamma0;
983 	__u32 gamma1;
984 	__u32 gamma2;
985 	__u32 gamma3;
986 	__u32 gamma4;
987 	__u32 gamma5;
988 };
989 
990 /*
991  * Intel sprite handling
992  *
993  * Color keying works with a min/mask/max tuple.  Both source and destination
994  * color keying is allowed.
995  *
996  * Source keying:
997  * Sprite pixels within the min & max values, masked against the color channels
998  * specified in the mask field, will be transparent.  All other pixels will
999  * be displayed on top of the primary plane.  For RGB surfaces, only the min
1000  * and mask fields will be used; ranged compares are not allowed.
1001  *
1002  * Destination keying:
1003  * Primary plane pixels that match the min value, masked against the color
1004  * channels specified in the mask field, will be replaced by corresponding
1005  * pixels from the sprite plane.
1006  *
1007  * Note that source & destination keying are exclusive; only one can be
1008  * active on a given plane.
1009  */
1010 
1011 #define I915_SET_COLORKEY_NONE		(1<<0) /* disable color key matching */
1012 #define I915_SET_COLORKEY_DESTINATION	(1<<1)
1013 #define I915_SET_COLORKEY_SOURCE	(1<<2)
1014 struct drm_intel_sprite_colorkey {
1015 	__u32 plane_id;
1016 	__u32 min_value;
1017 	__u32 channel_mask;
1018 	__u32 max_value;
1019 	__u32 flags;
1020 };
1021 
1022 struct drm_i915_gem_wait {
1023 	/** Handle of BO we shall wait on */
1024 	__u32 bo_handle;
1025 	__u32 flags;
1026 	/** Number of nanoseconds to wait, Returns time remaining. */
1027 	__s64 timeout_ns;
1028 };
1029 
1030 struct drm_i915_gem_context_create {
1031 	/*  output: id of new context*/
1032 	__u32 ctx_id;
1033 	__u32 pad;
1034 };
1035 
1036 struct drm_i915_gem_context_destroy {
1037 	__u32 ctx_id;
1038 	__u32 pad;
1039 };
1040 
1041 struct drm_i915_reg_read {
1042 	__u64 offset;
1043 	__u64 val; /* Return value */
1044 };
1045 
1046 struct drm_i915_reset_stats {
1047 	__u32 ctx_id;
1048 	__u32 flags;
1049 
1050 	/* All resets since boot/module reload, for all contexts */
1051 	__u32 reset_count;
1052 
1053 	/* Number of batches lost when active in GPU, for this context */
1054 	__u32 batch_active;
1055 
1056 	/* Number of batches lost pending for execution, for this context */
1057 	__u32 batch_pending;
1058 
1059 	__u32 pad;
1060 };
1061 
1062 struct drm_i915_gem_userptr {
1063 	__u64 user_ptr;
1064 	__u64 user_size;
1065 	__u32 flags;
1066 #define I915_USERPTR_READ_ONLY 0x1
1067 #define I915_USERPTR_UNSYNCHRONIZED 0x80000000
1068 	/**
1069 	 * Returned handle for the object.
1070 	 *
1071 	 * Object handles are nonzero.
1072 	 */
1073 	__u32 handle;
1074 };
1075 
1076 #endif /* _UAPI_I915_DRM_H_ */
1077