xref: /openbmc/linux/include/uapi/drm/i915_drm.h (revision f7777dcc)
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 of the affected cacheline. Userspace should keep track of
42  *	these events and if a specific cache-line seems to have a persistent
43  *	error remap it with the l3 remapping tool supplied in intel-gpu-tools.
44  *	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 
226 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
227 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
228 #define DRM_IOCTL_I915_FLIP		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLIP)
229 #define DRM_IOCTL_I915_BATCHBUFFER	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_BATCHBUFFER, drm_i915_batchbuffer_t)
230 #define DRM_IOCTL_I915_IRQ_EMIT         DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_IRQ_EMIT, drm_i915_irq_emit_t)
231 #define DRM_IOCTL_I915_IRQ_WAIT         DRM_IOW( DRM_COMMAND_BASE + DRM_I915_IRQ_WAIT, drm_i915_irq_wait_t)
232 #define DRM_IOCTL_I915_GETPARAM         DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GETPARAM, drm_i915_getparam_t)
233 #define DRM_IOCTL_I915_SETPARAM         DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SETPARAM, drm_i915_setparam_t)
234 #define DRM_IOCTL_I915_ALLOC            DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_ALLOC, drm_i915_mem_alloc_t)
235 #define DRM_IOCTL_I915_FREE             DRM_IOW( DRM_COMMAND_BASE + DRM_I915_FREE, drm_i915_mem_free_t)
236 #define DRM_IOCTL_I915_INIT_HEAP        DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT_HEAP, drm_i915_mem_init_heap_t)
237 #define DRM_IOCTL_I915_CMDBUFFER	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_CMDBUFFER, drm_i915_cmdbuffer_t)
238 #define DRM_IOCTL_I915_DESTROY_HEAP	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_DESTROY_HEAP, drm_i915_mem_destroy_heap_t)
239 #define DRM_IOCTL_I915_SET_VBLANK_PIPE	DRM_IOW( DRM_COMMAND_BASE + DRM_I915_SET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
240 #define DRM_IOCTL_I915_GET_VBLANK_PIPE	DRM_IOR( DRM_COMMAND_BASE + DRM_I915_GET_VBLANK_PIPE, drm_i915_vblank_pipe_t)
241 #define DRM_IOCTL_I915_VBLANK_SWAP	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_VBLANK_SWAP, drm_i915_vblank_swap_t)
242 #define DRM_IOCTL_I915_HWS_ADDR		DRM_IOW(DRM_COMMAND_BASE + DRM_I915_HWS_ADDR, struct drm_i915_gem_init)
243 #define DRM_IOCTL_I915_GEM_INIT		DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_INIT, struct drm_i915_gem_init)
244 #define DRM_IOCTL_I915_GEM_EXECBUFFER	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER, struct drm_i915_gem_execbuffer)
245 #define DRM_IOCTL_I915_GEM_EXECBUFFER2	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_EXECBUFFER2, struct drm_i915_gem_execbuffer2)
246 #define DRM_IOCTL_I915_GEM_PIN		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_PIN, struct drm_i915_gem_pin)
247 #define DRM_IOCTL_I915_GEM_UNPIN	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_UNPIN, struct drm_i915_gem_unpin)
248 #define DRM_IOCTL_I915_GEM_BUSY		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_BUSY, struct drm_i915_gem_busy)
249 #define DRM_IOCTL_I915_GEM_SET_CACHING		DRM_IOW(DRM_COMMAND_BASE + DRM_I915_GEM_SET_CACHING, struct drm_i915_gem_caching)
250 #define DRM_IOCTL_I915_GEM_GET_CACHING		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_GET_CACHING, struct drm_i915_gem_caching)
251 #define DRM_IOCTL_I915_GEM_THROTTLE	DRM_IO ( DRM_COMMAND_BASE + DRM_I915_GEM_THROTTLE)
252 #define DRM_IOCTL_I915_GEM_ENTERVT	DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_ENTERVT)
253 #define DRM_IOCTL_I915_GEM_LEAVEVT	DRM_IO(DRM_COMMAND_BASE + DRM_I915_GEM_LEAVEVT)
254 #define DRM_IOCTL_I915_GEM_CREATE	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_CREATE, struct drm_i915_gem_create)
255 #define DRM_IOCTL_I915_GEM_PREAD	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PREAD, struct drm_i915_gem_pread)
256 #define DRM_IOCTL_I915_GEM_PWRITE	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_PWRITE, struct drm_i915_gem_pwrite)
257 #define DRM_IOCTL_I915_GEM_MMAP		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP, struct drm_i915_gem_mmap)
258 #define DRM_IOCTL_I915_GEM_MMAP_GTT	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MMAP_GTT, struct drm_i915_gem_mmap_gtt)
259 #define DRM_IOCTL_I915_GEM_SET_DOMAIN	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SET_DOMAIN, struct drm_i915_gem_set_domain)
260 #define DRM_IOCTL_I915_GEM_SW_FINISH	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_SW_FINISH, struct drm_i915_gem_sw_finish)
261 #define DRM_IOCTL_I915_GEM_SET_TILING	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_SET_TILING, struct drm_i915_gem_set_tiling)
262 #define DRM_IOCTL_I915_GEM_GET_TILING	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_GET_TILING, struct drm_i915_gem_get_tiling)
263 #define DRM_IOCTL_I915_GEM_GET_APERTURE	DRM_IOR  (DRM_COMMAND_BASE + DRM_I915_GEM_GET_APERTURE, struct drm_i915_gem_get_aperture)
264 #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)
265 #define DRM_IOCTL_I915_GEM_MADVISE	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MADVISE, struct drm_i915_gem_madvise)
266 #define DRM_IOCTL_I915_OVERLAY_PUT_IMAGE	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_OVERLAY_PUT_IMAGE, struct drm_intel_overlay_put_image)
267 #define DRM_IOCTL_I915_OVERLAY_ATTRS	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_OVERLAY_ATTRS, struct drm_intel_overlay_attrs)
268 #define DRM_IOCTL_I915_SET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
269 #define DRM_IOCTL_I915_GET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
270 #define DRM_IOCTL_I915_GEM_WAIT		DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_WAIT, struct drm_i915_gem_wait)
271 #define DRM_IOCTL_I915_GEM_CONTEXT_CREATE	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_CREATE, struct drm_i915_gem_context_create)
272 #define DRM_IOCTL_I915_GEM_CONTEXT_DESTROY	DRM_IOW (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_DESTROY, struct drm_i915_gem_context_destroy)
273 #define DRM_IOCTL_I915_REG_READ			DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_REG_READ, struct drm_i915_reg_read)
274 
275 /* Allow drivers to submit batchbuffers directly to hardware, relying
276  * on the security mechanisms provided by hardware.
277  */
278 typedef struct drm_i915_batchbuffer {
279 	int start;		/* agp offset */
280 	int used;		/* nr bytes in use */
281 	int DR1;		/* hw flags for GFX_OP_DRAWRECT_INFO */
282 	int DR4;		/* window origin for GFX_OP_DRAWRECT_INFO */
283 	int num_cliprects;	/* mulitpass with multiple cliprects? */
284 	struct drm_clip_rect __user *cliprects;	/* pointer to userspace cliprects */
285 } drm_i915_batchbuffer_t;
286 
287 /* As above, but pass a pointer to userspace buffer which can be
288  * validated by the kernel prior to sending to hardware.
289  */
290 typedef struct _drm_i915_cmdbuffer {
291 	char __user *buf;	/* pointer to userspace command buffer */
292 	int sz;			/* nr bytes in buf */
293 	int DR1;		/* hw flags for GFX_OP_DRAWRECT_INFO */
294 	int DR4;		/* window origin for GFX_OP_DRAWRECT_INFO */
295 	int num_cliprects;	/* mulitpass with multiple cliprects? */
296 	struct drm_clip_rect __user *cliprects;	/* pointer to userspace cliprects */
297 } drm_i915_cmdbuffer_t;
298 
299 /* Userspace can request & wait on irq's:
300  */
301 typedef struct drm_i915_irq_emit {
302 	int __user *irq_seq;
303 } drm_i915_irq_emit_t;
304 
305 typedef struct drm_i915_irq_wait {
306 	int irq_seq;
307 } drm_i915_irq_wait_t;
308 
309 /* Ioctl to query kernel params:
310  */
311 #define I915_PARAM_IRQ_ACTIVE            1
312 #define I915_PARAM_ALLOW_BATCHBUFFER     2
313 #define I915_PARAM_LAST_DISPATCH         3
314 #define I915_PARAM_CHIPSET_ID            4
315 #define I915_PARAM_HAS_GEM               5
316 #define I915_PARAM_NUM_FENCES_AVAIL      6
317 #define I915_PARAM_HAS_OVERLAY           7
318 #define I915_PARAM_HAS_PAGEFLIPPING	 8
319 #define I915_PARAM_HAS_EXECBUF2          9
320 #define I915_PARAM_HAS_BSD		 10
321 #define I915_PARAM_HAS_BLT		 11
322 #define I915_PARAM_HAS_RELAXED_FENCING	 12
323 #define I915_PARAM_HAS_COHERENT_RINGS	 13
324 #define I915_PARAM_HAS_EXEC_CONSTANTS	 14
325 #define I915_PARAM_HAS_RELAXED_DELTA	 15
326 #define I915_PARAM_HAS_GEN7_SOL_RESET	 16
327 #define I915_PARAM_HAS_LLC     	 	 17
328 #define I915_PARAM_HAS_ALIASING_PPGTT	 18
329 #define I915_PARAM_HAS_WAIT_TIMEOUT	 19
330 #define I915_PARAM_HAS_SEMAPHORES	 20
331 #define I915_PARAM_HAS_PRIME_VMAP_FLUSH	 21
332 #define I915_PARAM_HAS_VEBOX		 22
333 #define I915_PARAM_HAS_SECURE_BATCHES	 23
334 #define I915_PARAM_HAS_PINNED_BATCHES	 24
335 #define I915_PARAM_HAS_EXEC_NO_RELOC	 25
336 #define I915_PARAM_HAS_EXEC_HANDLE_LUT   26
337 #define I915_PARAM_HAS_WT     	 	 27
338 
339 typedef struct drm_i915_getparam {
340 	int param;
341 	int __user *value;
342 } drm_i915_getparam_t;
343 
344 /* Ioctl to set kernel params:
345  */
346 #define I915_SETPARAM_USE_MI_BATCHBUFFER_START            1
347 #define I915_SETPARAM_TEX_LRU_LOG_GRANULARITY             2
348 #define I915_SETPARAM_ALLOW_BATCHBUFFER                   3
349 #define I915_SETPARAM_NUM_USED_FENCES                     4
350 
351 typedef struct drm_i915_setparam {
352 	int param;
353 	int value;
354 } drm_i915_setparam_t;
355 
356 /* A memory manager for regions of shared memory:
357  */
358 #define I915_MEM_REGION_AGP 1
359 
360 typedef struct drm_i915_mem_alloc {
361 	int region;
362 	int alignment;
363 	int size;
364 	int __user *region_offset;	/* offset from start of fb or agp */
365 } drm_i915_mem_alloc_t;
366 
367 typedef struct drm_i915_mem_free {
368 	int region;
369 	int region_offset;
370 } drm_i915_mem_free_t;
371 
372 typedef struct drm_i915_mem_init_heap {
373 	int region;
374 	int size;
375 	int start;
376 } drm_i915_mem_init_heap_t;
377 
378 /* Allow memory manager to be torn down and re-initialized (eg on
379  * rotate):
380  */
381 typedef struct drm_i915_mem_destroy_heap {
382 	int region;
383 } drm_i915_mem_destroy_heap_t;
384 
385 /* Allow X server to configure which pipes to monitor for vblank signals
386  */
387 #define	DRM_I915_VBLANK_PIPE_A	1
388 #define	DRM_I915_VBLANK_PIPE_B	2
389 
390 typedef struct drm_i915_vblank_pipe {
391 	int pipe;
392 } drm_i915_vblank_pipe_t;
393 
394 /* Schedule buffer swap at given vertical blank:
395  */
396 typedef struct drm_i915_vblank_swap {
397 	drm_drawable_t drawable;
398 	enum drm_vblank_seq_type seqtype;
399 	unsigned int sequence;
400 } drm_i915_vblank_swap_t;
401 
402 typedef struct drm_i915_hws_addr {
403 	__u64 addr;
404 } drm_i915_hws_addr_t;
405 
406 struct drm_i915_gem_init {
407 	/**
408 	 * Beginning offset in the GTT to be managed by the DRM memory
409 	 * manager.
410 	 */
411 	__u64 gtt_start;
412 	/**
413 	 * Ending offset in the GTT to be managed by the DRM memory
414 	 * manager.
415 	 */
416 	__u64 gtt_end;
417 };
418 
419 struct drm_i915_gem_create {
420 	/**
421 	 * Requested size for the object.
422 	 *
423 	 * The (page-aligned) allocated size for the object will be returned.
424 	 */
425 	__u64 size;
426 	/**
427 	 * Returned handle for the object.
428 	 *
429 	 * Object handles are nonzero.
430 	 */
431 	__u32 handle;
432 	__u32 pad;
433 };
434 
435 struct drm_i915_gem_pread {
436 	/** Handle for the object being read. */
437 	__u32 handle;
438 	__u32 pad;
439 	/** Offset into the object to read from */
440 	__u64 offset;
441 	/** Length of data to read */
442 	__u64 size;
443 	/**
444 	 * Pointer to write the data into.
445 	 *
446 	 * This is a fixed-size type for 32/64 compatibility.
447 	 */
448 	__u64 data_ptr;
449 };
450 
451 struct drm_i915_gem_pwrite {
452 	/** Handle for the object being written to. */
453 	__u32 handle;
454 	__u32 pad;
455 	/** Offset into the object to write to */
456 	__u64 offset;
457 	/** Length of data to write */
458 	__u64 size;
459 	/**
460 	 * Pointer to read the data from.
461 	 *
462 	 * This is a fixed-size type for 32/64 compatibility.
463 	 */
464 	__u64 data_ptr;
465 };
466 
467 struct drm_i915_gem_mmap {
468 	/** Handle for the object being mapped. */
469 	__u32 handle;
470 	__u32 pad;
471 	/** Offset in the object to map. */
472 	__u64 offset;
473 	/**
474 	 * Length of data to map.
475 	 *
476 	 * The value will be page-aligned.
477 	 */
478 	__u64 size;
479 	/**
480 	 * Returned pointer the data was mapped at.
481 	 *
482 	 * This is a fixed-size type for 32/64 compatibility.
483 	 */
484 	__u64 addr_ptr;
485 };
486 
487 struct drm_i915_gem_mmap_gtt {
488 	/** Handle for the object being mapped. */
489 	__u32 handle;
490 	__u32 pad;
491 	/**
492 	 * Fake offset to use for subsequent mmap call
493 	 *
494 	 * This is a fixed-size type for 32/64 compatibility.
495 	 */
496 	__u64 offset;
497 };
498 
499 struct drm_i915_gem_set_domain {
500 	/** Handle for the object */
501 	__u32 handle;
502 
503 	/** New read domains */
504 	__u32 read_domains;
505 
506 	/** New write domain */
507 	__u32 write_domain;
508 };
509 
510 struct drm_i915_gem_sw_finish {
511 	/** Handle for the object */
512 	__u32 handle;
513 };
514 
515 struct drm_i915_gem_relocation_entry {
516 	/**
517 	 * Handle of the buffer being pointed to by this relocation entry.
518 	 *
519 	 * It's appealing to make this be an index into the mm_validate_entry
520 	 * list to refer to the buffer, but this allows the driver to create
521 	 * a relocation list for state buffers and not re-write it per
522 	 * exec using the buffer.
523 	 */
524 	__u32 target_handle;
525 
526 	/**
527 	 * Value to be added to the offset of the target buffer to make up
528 	 * the relocation entry.
529 	 */
530 	__u32 delta;
531 
532 	/** Offset in the buffer the relocation entry will be written into */
533 	__u64 offset;
534 
535 	/**
536 	 * Offset value of the target buffer that the relocation entry was last
537 	 * written as.
538 	 *
539 	 * If the buffer has the same offset as last time, we can skip syncing
540 	 * and writing the relocation.  This value is written back out by
541 	 * the execbuffer ioctl when the relocation is written.
542 	 */
543 	__u64 presumed_offset;
544 
545 	/**
546 	 * Target memory domains read by this operation.
547 	 */
548 	__u32 read_domains;
549 
550 	/**
551 	 * Target memory domains written by this operation.
552 	 *
553 	 * Note that only one domain may be written by the whole
554 	 * execbuffer operation, so that where there are conflicts,
555 	 * the application will get -EINVAL back.
556 	 */
557 	__u32 write_domain;
558 };
559 
560 /** @{
561  * Intel memory domains
562  *
563  * Most of these just align with the various caches in
564  * the system and are used to flush and invalidate as
565  * objects end up cached in different domains.
566  */
567 /** CPU cache */
568 #define I915_GEM_DOMAIN_CPU		0x00000001
569 /** Render cache, used by 2D and 3D drawing */
570 #define I915_GEM_DOMAIN_RENDER		0x00000002
571 /** Sampler cache, used by texture engine */
572 #define I915_GEM_DOMAIN_SAMPLER		0x00000004
573 /** Command queue, used to load batch buffers */
574 #define I915_GEM_DOMAIN_COMMAND		0x00000008
575 /** Instruction cache, used by shader programs */
576 #define I915_GEM_DOMAIN_INSTRUCTION	0x00000010
577 /** Vertex address cache */
578 #define I915_GEM_DOMAIN_VERTEX		0x00000020
579 /** GTT domain - aperture and scanout */
580 #define I915_GEM_DOMAIN_GTT		0x00000040
581 /** @} */
582 
583 struct drm_i915_gem_exec_object {
584 	/**
585 	 * User's handle for a buffer to be bound into the GTT for this
586 	 * operation.
587 	 */
588 	__u32 handle;
589 
590 	/** Number of relocations to be performed on this buffer */
591 	__u32 relocation_count;
592 	/**
593 	 * Pointer to array of struct drm_i915_gem_relocation_entry containing
594 	 * the relocations to be performed in this buffer.
595 	 */
596 	__u64 relocs_ptr;
597 
598 	/** Required alignment in graphics aperture */
599 	__u64 alignment;
600 
601 	/**
602 	 * Returned value of the updated offset of the object, for future
603 	 * presumed_offset writes.
604 	 */
605 	__u64 offset;
606 };
607 
608 struct drm_i915_gem_execbuffer {
609 	/**
610 	 * List of buffers to be validated with their relocations to be
611 	 * performend on them.
612 	 *
613 	 * This is a pointer to an array of struct drm_i915_gem_validate_entry.
614 	 *
615 	 * These buffers must be listed in an order such that all relocations
616 	 * a buffer is performing refer to buffers that have already appeared
617 	 * in the validate list.
618 	 */
619 	__u64 buffers_ptr;
620 	__u32 buffer_count;
621 
622 	/** Offset in the batchbuffer to start execution from. */
623 	__u32 batch_start_offset;
624 	/** Bytes used in batchbuffer from batch_start_offset */
625 	__u32 batch_len;
626 	__u32 DR1;
627 	__u32 DR4;
628 	__u32 num_cliprects;
629 	/** This is a struct drm_clip_rect *cliprects */
630 	__u64 cliprects_ptr;
631 };
632 
633 struct drm_i915_gem_exec_object2 {
634 	/**
635 	 * User's handle for a buffer to be bound into the GTT for this
636 	 * operation.
637 	 */
638 	__u32 handle;
639 
640 	/** Number of relocations to be performed on this buffer */
641 	__u32 relocation_count;
642 	/**
643 	 * Pointer to array of struct drm_i915_gem_relocation_entry containing
644 	 * the relocations to be performed in this buffer.
645 	 */
646 	__u64 relocs_ptr;
647 
648 	/** Required alignment in graphics aperture */
649 	__u64 alignment;
650 
651 	/**
652 	 * Returned value of the updated offset of the object, for future
653 	 * presumed_offset writes.
654 	 */
655 	__u64 offset;
656 
657 #define EXEC_OBJECT_NEEDS_FENCE (1<<0)
658 #define EXEC_OBJECT_NEEDS_GTT	(1<<1)
659 #define EXEC_OBJECT_WRITE	(1<<2)
660 #define __EXEC_OBJECT_UNKNOWN_FLAGS -(EXEC_OBJECT_WRITE<<1)
661 	__u64 flags;
662 
663 	__u64 rsvd1;
664 	__u64 rsvd2;
665 };
666 
667 struct drm_i915_gem_execbuffer2 {
668 	/**
669 	 * List of gem_exec_object2 structs
670 	 */
671 	__u64 buffers_ptr;
672 	__u32 buffer_count;
673 
674 	/** Offset in the batchbuffer to start execution from. */
675 	__u32 batch_start_offset;
676 	/** Bytes used in batchbuffer from batch_start_offset */
677 	__u32 batch_len;
678 	__u32 DR1;
679 	__u32 DR4;
680 	__u32 num_cliprects;
681 	/** This is a struct drm_clip_rect *cliprects */
682 	__u64 cliprects_ptr;
683 #define I915_EXEC_RING_MASK              (7<<0)
684 #define I915_EXEC_DEFAULT                (0<<0)
685 #define I915_EXEC_RENDER                 (1<<0)
686 #define I915_EXEC_BSD                    (2<<0)
687 #define I915_EXEC_BLT                    (3<<0)
688 #define I915_EXEC_VEBOX                  (4<<0)
689 
690 /* Used for switching the constants addressing mode on gen4+ RENDER ring.
691  * Gen6+ only supports relative addressing to dynamic state (default) and
692  * absolute addressing.
693  *
694  * These flags are ignored for the BSD and BLT rings.
695  */
696 #define I915_EXEC_CONSTANTS_MASK 	(3<<6)
697 #define I915_EXEC_CONSTANTS_REL_GENERAL (0<<6) /* default */
698 #define I915_EXEC_CONSTANTS_ABSOLUTE 	(1<<6)
699 #define I915_EXEC_CONSTANTS_REL_SURFACE (2<<6) /* gen4/5 only */
700 	__u64 flags;
701 	__u64 rsvd1; /* now used for context info */
702 	__u64 rsvd2;
703 };
704 
705 /** Resets the SO write offset registers for transform feedback on gen7. */
706 #define I915_EXEC_GEN7_SOL_RESET	(1<<8)
707 
708 /** Request a privileged ("secure") batch buffer. Note only available for
709  * DRM_ROOT_ONLY | DRM_MASTER processes.
710  */
711 #define I915_EXEC_SECURE		(1<<9)
712 
713 /** Inform the kernel that the batch is and will always be pinned. This
714  * negates the requirement for a workaround to be performed to avoid
715  * an incoherent CS (such as can be found on 830/845). If this flag is
716  * not passed, the kernel will endeavour to make sure the batch is
717  * coherent with the CS before execution. If this flag is passed,
718  * userspace assumes the responsibility for ensuring the same.
719  */
720 #define I915_EXEC_IS_PINNED		(1<<10)
721 
722 /** Provide a hint to the kernel that the command stream and auxilliary
723  * state buffers already holds the correct presumed addresses and so the
724  * relocation process may be skipped if no buffers need to be moved in
725  * preparation for the execbuffer.
726  */
727 #define I915_EXEC_NO_RELOC		(1<<11)
728 
729 /** Use the reloc.handle as an index into the exec object array rather
730  * than as the per-file handle.
731  */
732 #define I915_EXEC_HANDLE_LUT		(1<<12)
733 
734 #define __I915_EXEC_UNKNOWN_FLAGS -(I915_EXEC_HANDLE_LUT<<1)
735 
736 #define I915_EXEC_CONTEXT_ID_MASK	(0xffffffff)
737 #define i915_execbuffer2_set_context_id(eb2, context) \
738 	(eb2).rsvd1 = context & I915_EXEC_CONTEXT_ID_MASK
739 #define i915_execbuffer2_get_context_id(eb2) \
740 	((eb2).rsvd1 & I915_EXEC_CONTEXT_ID_MASK)
741 
742 struct drm_i915_gem_pin {
743 	/** Handle of the buffer to be pinned. */
744 	__u32 handle;
745 	__u32 pad;
746 
747 	/** alignment required within the aperture */
748 	__u64 alignment;
749 
750 	/** Returned GTT offset of the buffer. */
751 	__u64 offset;
752 };
753 
754 struct drm_i915_gem_unpin {
755 	/** Handle of the buffer to be unpinned. */
756 	__u32 handle;
757 	__u32 pad;
758 };
759 
760 struct drm_i915_gem_busy {
761 	/** Handle of the buffer to check for busy */
762 	__u32 handle;
763 
764 	/** Return busy status (1 if busy, 0 if idle).
765 	 * The high word is used to indicate on which rings the object
766 	 * currently resides:
767 	 *  16:31 - busy (r or r/w) rings (16 render, 17 bsd, 18 blt, etc)
768 	 */
769 	__u32 busy;
770 };
771 
772 /**
773  * I915_CACHING_NONE
774  *
775  * GPU access is not coherent with cpu caches. Default for machines without an
776  * LLC.
777  */
778 #define I915_CACHING_NONE		0
779 /**
780  * I915_CACHING_CACHED
781  *
782  * GPU access is coherent with cpu caches and furthermore the data is cached in
783  * last-level caches shared between cpu cores and the gpu GT. Default on
784  * machines with HAS_LLC.
785  */
786 #define I915_CACHING_CACHED		1
787 /**
788  * I915_CACHING_DISPLAY
789  *
790  * Special GPU caching mode which is coherent with the scanout engines.
791  * Transparently falls back to I915_CACHING_NONE on platforms where no special
792  * cache mode (like write-through or gfdt flushing) is available. The kernel
793  * automatically sets this mode when using a buffer as a scanout target.
794  * Userspace can manually set this mode to avoid a costly stall and clflush in
795  * the hotpath of drawing the first frame.
796  */
797 #define I915_CACHING_DISPLAY		2
798 
799 struct drm_i915_gem_caching {
800 	/**
801 	 * Handle of the buffer to set/get the caching level of. */
802 	__u32 handle;
803 
804 	/**
805 	 * Cacheing level to apply or return value
806 	 *
807 	 * bits0-15 are for generic caching control (i.e. the above defined
808 	 * values). bits16-31 are reserved for platform-specific variations
809 	 * (e.g. l3$ caching on gen7). */
810 	__u32 caching;
811 };
812 
813 #define I915_TILING_NONE	0
814 #define I915_TILING_X		1
815 #define I915_TILING_Y		2
816 
817 #define I915_BIT_6_SWIZZLE_NONE		0
818 #define I915_BIT_6_SWIZZLE_9		1
819 #define I915_BIT_6_SWIZZLE_9_10		2
820 #define I915_BIT_6_SWIZZLE_9_11		3
821 #define I915_BIT_6_SWIZZLE_9_10_11	4
822 /* Not seen by userland */
823 #define I915_BIT_6_SWIZZLE_UNKNOWN	5
824 /* Seen by userland. */
825 #define I915_BIT_6_SWIZZLE_9_17		6
826 #define I915_BIT_6_SWIZZLE_9_10_17	7
827 
828 struct drm_i915_gem_set_tiling {
829 	/** Handle of the buffer to have its tiling state updated */
830 	__u32 handle;
831 
832 	/**
833 	 * Tiling mode for the object (I915_TILING_NONE, I915_TILING_X,
834 	 * I915_TILING_Y).
835 	 *
836 	 * This value is to be set on request, and will be updated by the
837 	 * kernel on successful return with the actual chosen tiling layout.
838 	 *
839 	 * The tiling mode may be demoted to I915_TILING_NONE when the system
840 	 * has bit 6 swizzling that can't be managed correctly by GEM.
841 	 *
842 	 * Buffer contents become undefined when changing tiling_mode.
843 	 */
844 	__u32 tiling_mode;
845 
846 	/**
847 	 * Stride in bytes for the object when in I915_TILING_X or
848 	 * I915_TILING_Y.
849 	 */
850 	__u32 stride;
851 
852 	/**
853 	 * Returned address bit 6 swizzling required for CPU access through
854 	 * mmap mapping.
855 	 */
856 	__u32 swizzle_mode;
857 };
858 
859 struct drm_i915_gem_get_tiling {
860 	/** Handle of the buffer to get tiling state for. */
861 	__u32 handle;
862 
863 	/**
864 	 * Current tiling mode for the object (I915_TILING_NONE, I915_TILING_X,
865 	 * I915_TILING_Y).
866 	 */
867 	__u32 tiling_mode;
868 
869 	/**
870 	 * Returned address bit 6 swizzling required for CPU access through
871 	 * mmap mapping.
872 	 */
873 	__u32 swizzle_mode;
874 };
875 
876 struct drm_i915_gem_get_aperture {
877 	/** Total size of the aperture used by i915_gem_execbuffer, in bytes */
878 	__u64 aper_size;
879 
880 	/**
881 	 * Available space in the aperture used by i915_gem_execbuffer, in
882 	 * bytes
883 	 */
884 	__u64 aper_available_size;
885 };
886 
887 struct drm_i915_get_pipe_from_crtc_id {
888 	/** ID of CRTC being requested **/
889 	__u32 crtc_id;
890 
891 	/** pipe of requested CRTC **/
892 	__u32 pipe;
893 };
894 
895 #define I915_MADV_WILLNEED 0
896 #define I915_MADV_DONTNEED 1
897 #define __I915_MADV_PURGED 2 /* internal state */
898 
899 struct drm_i915_gem_madvise {
900 	/** Handle of the buffer to change the backing store advice */
901 	__u32 handle;
902 
903 	/* Advice: either the buffer will be needed again in the near future,
904 	 *         or wont be and could be discarded under memory pressure.
905 	 */
906 	__u32 madv;
907 
908 	/** Whether the backing store still exists. */
909 	__u32 retained;
910 };
911 
912 /* flags */
913 #define I915_OVERLAY_TYPE_MASK 		0xff
914 #define I915_OVERLAY_YUV_PLANAR 	0x01
915 #define I915_OVERLAY_YUV_PACKED 	0x02
916 #define I915_OVERLAY_RGB		0x03
917 
918 #define I915_OVERLAY_DEPTH_MASK		0xff00
919 #define I915_OVERLAY_RGB24		0x1000
920 #define I915_OVERLAY_RGB16		0x2000
921 #define I915_OVERLAY_RGB15		0x3000
922 #define I915_OVERLAY_YUV422		0x0100
923 #define I915_OVERLAY_YUV411		0x0200
924 #define I915_OVERLAY_YUV420		0x0300
925 #define I915_OVERLAY_YUV410		0x0400
926 
927 #define I915_OVERLAY_SWAP_MASK		0xff0000
928 #define I915_OVERLAY_NO_SWAP		0x000000
929 #define I915_OVERLAY_UV_SWAP		0x010000
930 #define I915_OVERLAY_Y_SWAP		0x020000
931 #define I915_OVERLAY_Y_AND_UV_SWAP	0x030000
932 
933 #define I915_OVERLAY_FLAGS_MASK		0xff000000
934 #define I915_OVERLAY_ENABLE		0x01000000
935 
936 struct drm_intel_overlay_put_image {
937 	/* various flags and src format description */
938 	__u32 flags;
939 	/* source picture description */
940 	__u32 bo_handle;
941 	/* stride values and offsets are in bytes, buffer relative */
942 	__u16 stride_Y; /* stride for packed formats */
943 	__u16 stride_UV;
944 	__u32 offset_Y; /* offset for packet formats */
945 	__u32 offset_U;
946 	__u32 offset_V;
947 	/* in pixels */
948 	__u16 src_width;
949 	__u16 src_height;
950 	/* to compensate the scaling factors for partially covered surfaces */
951 	__u16 src_scan_width;
952 	__u16 src_scan_height;
953 	/* output crtc description */
954 	__u32 crtc_id;
955 	__u16 dst_x;
956 	__u16 dst_y;
957 	__u16 dst_width;
958 	__u16 dst_height;
959 };
960 
961 /* flags */
962 #define I915_OVERLAY_UPDATE_ATTRS	(1<<0)
963 #define I915_OVERLAY_UPDATE_GAMMA	(1<<1)
964 struct drm_intel_overlay_attrs {
965 	__u32 flags;
966 	__u32 color_key;
967 	__s32 brightness;
968 	__u32 contrast;
969 	__u32 saturation;
970 	__u32 gamma0;
971 	__u32 gamma1;
972 	__u32 gamma2;
973 	__u32 gamma3;
974 	__u32 gamma4;
975 	__u32 gamma5;
976 };
977 
978 /*
979  * Intel sprite handling
980  *
981  * Color keying works with a min/mask/max tuple.  Both source and destination
982  * color keying is allowed.
983  *
984  * Source keying:
985  * Sprite pixels within the min & max values, masked against the color channels
986  * specified in the mask field, will be transparent.  All other pixels will
987  * be displayed on top of the primary plane.  For RGB surfaces, only the min
988  * and mask fields will be used; ranged compares are not allowed.
989  *
990  * Destination keying:
991  * Primary plane pixels that match the min value, masked against the color
992  * channels specified in the mask field, will be replaced by corresponding
993  * pixels from the sprite plane.
994  *
995  * Note that source & destination keying are exclusive; only one can be
996  * active on a given plane.
997  */
998 
999 #define I915_SET_COLORKEY_NONE		(1<<0) /* disable color key matching */
1000 #define I915_SET_COLORKEY_DESTINATION	(1<<1)
1001 #define I915_SET_COLORKEY_SOURCE	(1<<2)
1002 struct drm_intel_sprite_colorkey {
1003 	__u32 plane_id;
1004 	__u32 min_value;
1005 	__u32 channel_mask;
1006 	__u32 max_value;
1007 	__u32 flags;
1008 };
1009 
1010 struct drm_i915_gem_wait {
1011 	/** Handle of BO we shall wait on */
1012 	__u32 bo_handle;
1013 	__u32 flags;
1014 	/** Number of nanoseconds to wait, Returns time remaining. */
1015 	__s64 timeout_ns;
1016 };
1017 
1018 struct drm_i915_gem_context_create {
1019 	/*  output: id of new context*/
1020 	__u32 ctx_id;
1021 	__u32 pad;
1022 };
1023 
1024 struct drm_i915_gem_context_destroy {
1025 	__u32 ctx_id;
1026 	__u32 pad;
1027 };
1028 
1029 struct drm_i915_reg_read {
1030 	__u64 offset;
1031 	__u64 val; /* Return value */
1032 };
1033 #endif /* _UAPI_I915_DRM_H_ */
1034