xref: /openbmc/linux/include/uapi/drm/amdgpu_drm.h (revision f3a8b664)
1 /* amdgpu_drm.h -- Public header for the amdgpu driver -*- linux-c -*-
2  *
3  * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
4  * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
5  * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
6  * Copyright 2014 Advanced Micro Devices, Inc.
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the "Software"),
10  * to deal in the Software without restriction, including without limitation
11  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12  * and/or sell copies of the Software, and to permit persons to whom the
13  * Software is furnished to do so, subject to the following conditions:
14  *
15  * The above copyright notice and this permission notice shall be included in
16  * all copies or substantial portions 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 NONINFRINGEMENT.  IN NO EVENT SHALL
21  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
22  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24  * OTHER DEALINGS IN THE SOFTWARE.
25  *
26  * Authors:
27  *    Kevin E. Martin <martin@valinux.com>
28  *    Gareth Hughes <gareth@valinux.com>
29  *    Keith Whitwell <keith@tungstengraphics.com>
30  */
31 
32 #ifndef __AMDGPU_DRM_H__
33 #define __AMDGPU_DRM_H__
34 
35 #include "drm.h"
36 
37 #if defined(__cplusplus)
38 extern "C" {
39 #endif
40 
41 #define DRM_AMDGPU_GEM_CREATE		0x00
42 #define DRM_AMDGPU_GEM_MMAP		0x01
43 #define DRM_AMDGPU_CTX			0x02
44 #define DRM_AMDGPU_BO_LIST		0x03
45 #define DRM_AMDGPU_CS			0x04
46 #define DRM_AMDGPU_INFO			0x05
47 #define DRM_AMDGPU_GEM_METADATA		0x06
48 #define DRM_AMDGPU_GEM_WAIT_IDLE	0x07
49 #define DRM_AMDGPU_GEM_VA		0x08
50 #define DRM_AMDGPU_WAIT_CS		0x09
51 #define DRM_AMDGPU_GEM_OP		0x10
52 #define DRM_AMDGPU_GEM_USERPTR		0x11
53 
54 #define DRM_IOCTL_AMDGPU_GEM_CREATE	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_CREATE, union drm_amdgpu_gem_create)
55 #define DRM_IOCTL_AMDGPU_GEM_MMAP	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_MMAP, union drm_amdgpu_gem_mmap)
56 #define DRM_IOCTL_AMDGPU_CTX		DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_CTX, union drm_amdgpu_ctx)
57 #define DRM_IOCTL_AMDGPU_BO_LIST	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_BO_LIST, union drm_amdgpu_bo_list)
58 #define DRM_IOCTL_AMDGPU_CS		DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_CS, union drm_amdgpu_cs)
59 #define DRM_IOCTL_AMDGPU_INFO		DRM_IOW(DRM_COMMAND_BASE + DRM_AMDGPU_INFO, struct drm_amdgpu_info)
60 #define DRM_IOCTL_AMDGPU_GEM_METADATA	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_METADATA, struct drm_amdgpu_gem_metadata)
61 #define DRM_IOCTL_AMDGPU_GEM_WAIT_IDLE	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_WAIT_IDLE, union drm_amdgpu_gem_wait_idle)
62 #define DRM_IOCTL_AMDGPU_GEM_VA		DRM_IOW(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_VA, struct drm_amdgpu_gem_va)
63 #define DRM_IOCTL_AMDGPU_WAIT_CS	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_WAIT_CS, union drm_amdgpu_wait_cs)
64 #define DRM_IOCTL_AMDGPU_GEM_OP		DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_OP, struct drm_amdgpu_gem_op)
65 #define DRM_IOCTL_AMDGPU_GEM_USERPTR	DRM_IOWR(DRM_COMMAND_BASE + DRM_AMDGPU_GEM_USERPTR, struct drm_amdgpu_gem_userptr)
66 
67 #define AMDGPU_GEM_DOMAIN_CPU		0x1
68 #define AMDGPU_GEM_DOMAIN_GTT		0x2
69 #define AMDGPU_GEM_DOMAIN_VRAM		0x4
70 #define AMDGPU_GEM_DOMAIN_GDS		0x8
71 #define AMDGPU_GEM_DOMAIN_GWS		0x10
72 #define AMDGPU_GEM_DOMAIN_OA		0x20
73 
74 /* Flag that CPU access will be required for the case of VRAM domain */
75 #define AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED	(1 << 0)
76 /* Flag that CPU access will not work, this VRAM domain is invisible */
77 #define AMDGPU_GEM_CREATE_NO_CPU_ACCESS		(1 << 1)
78 /* Flag that USWC attributes should be used for GTT */
79 #define AMDGPU_GEM_CREATE_CPU_GTT_USWC		(1 << 2)
80 /* Flag that the memory should be in VRAM and cleared */
81 #define AMDGPU_GEM_CREATE_VRAM_CLEARED		(1 << 3)
82 /* Flag that create shadow bo(GTT) while allocating vram bo */
83 #define AMDGPU_GEM_CREATE_SHADOW		(1 << 4)
84 /* Flag that allocating the BO should use linear VRAM */
85 #define AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS	(1 << 5)
86 
87 struct drm_amdgpu_gem_create_in  {
88 	/** the requested memory size */
89 	__u64 bo_size;
90 	/** physical start_addr alignment in bytes for some HW requirements */
91 	__u64 alignment;
92 	/** the requested memory domains */
93 	__u64 domains;
94 	/** allocation flags */
95 	__u64 domain_flags;
96 };
97 
98 struct drm_amdgpu_gem_create_out  {
99 	/** returned GEM object handle */
100 	__u32 handle;
101 	__u32 _pad;
102 };
103 
104 union drm_amdgpu_gem_create {
105 	struct drm_amdgpu_gem_create_in		in;
106 	struct drm_amdgpu_gem_create_out	out;
107 };
108 
109 /** Opcode to create new residency list.  */
110 #define AMDGPU_BO_LIST_OP_CREATE	0
111 /** Opcode to destroy previously created residency list */
112 #define AMDGPU_BO_LIST_OP_DESTROY	1
113 /** Opcode to update resource information in the list */
114 #define AMDGPU_BO_LIST_OP_UPDATE	2
115 
116 struct drm_amdgpu_bo_list_in {
117 	/** Type of operation */
118 	__u32 operation;
119 	/** Handle of list or 0 if we want to create one */
120 	__u32 list_handle;
121 	/** Number of BOs in list  */
122 	__u32 bo_number;
123 	/** Size of each element describing BO */
124 	__u32 bo_info_size;
125 	/** Pointer to array describing BOs */
126 	__u64 bo_info_ptr;
127 };
128 
129 struct drm_amdgpu_bo_list_entry {
130 	/** Handle of BO */
131 	__u32 bo_handle;
132 	/** New (if specified) BO priority to be used during migration */
133 	__u32 bo_priority;
134 };
135 
136 struct drm_amdgpu_bo_list_out {
137 	/** Handle of resource list  */
138 	__u32 list_handle;
139 	__u32 _pad;
140 };
141 
142 union drm_amdgpu_bo_list {
143 	struct drm_amdgpu_bo_list_in in;
144 	struct drm_amdgpu_bo_list_out out;
145 };
146 
147 /* context related */
148 #define AMDGPU_CTX_OP_ALLOC_CTX	1
149 #define AMDGPU_CTX_OP_FREE_CTX	2
150 #define AMDGPU_CTX_OP_QUERY_STATE	3
151 
152 /* GPU reset status */
153 #define AMDGPU_CTX_NO_RESET		0
154 /* this the context caused it */
155 #define AMDGPU_CTX_GUILTY_RESET		1
156 /* some other context caused it */
157 #define AMDGPU_CTX_INNOCENT_RESET	2
158 /* unknown cause */
159 #define AMDGPU_CTX_UNKNOWN_RESET	3
160 
161 struct drm_amdgpu_ctx_in {
162 	/** AMDGPU_CTX_OP_* */
163 	__u32	op;
164 	/** For future use, no flags defined so far */
165 	__u32	flags;
166 	__u32	ctx_id;
167 	__u32	_pad;
168 };
169 
170 union drm_amdgpu_ctx_out {
171 		struct {
172 			__u32	ctx_id;
173 			__u32	_pad;
174 		} alloc;
175 
176 		struct {
177 			/** For future use, no flags defined so far */
178 			__u64	flags;
179 			/** Number of resets caused by this context so far. */
180 			__u32	hangs;
181 			/** Reset status since the last call of the ioctl. */
182 			__u32	reset_status;
183 		} state;
184 };
185 
186 union drm_amdgpu_ctx {
187 	struct drm_amdgpu_ctx_in in;
188 	union drm_amdgpu_ctx_out out;
189 };
190 
191 /*
192  * This is not a reliable API and you should expect it to fail for any
193  * number of reasons and have fallback path that do not use userptr to
194  * perform any operation.
195  */
196 #define AMDGPU_GEM_USERPTR_READONLY	(1 << 0)
197 #define AMDGPU_GEM_USERPTR_ANONONLY	(1 << 1)
198 #define AMDGPU_GEM_USERPTR_VALIDATE	(1 << 2)
199 #define AMDGPU_GEM_USERPTR_REGISTER	(1 << 3)
200 
201 struct drm_amdgpu_gem_userptr {
202 	__u64		addr;
203 	__u64		size;
204 	/* AMDGPU_GEM_USERPTR_* */
205 	__u32		flags;
206 	/* Resulting GEM handle */
207 	__u32		handle;
208 };
209 
210 /* same meaning as the GB_TILE_MODE and GL_MACRO_TILE_MODE fields */
211 #define AMDGPU_TILING_ARRAY_MODE_SHIFT			0
212 #define AMDGPU_TILING_ARRAY_MODE_MASK			0xf
213 #define AMDGPU_TILING_PIPE_CONFIG_SHIFT			4
214 #define AMDGPU_TILING_PIPE_CONFIG_MASK			0x1f
215 #define AMDGPU_TILING_TILE_SPLIT_SHIFT			9
216 #define AMDGPU_TILING_TILE_SPLIT_MASK			0x7
217 #define AMDGPU_TILING_MICRO_TILE_MODE_SHIFT		12
218 #define AMDGPU_TILING_MICRO_TILE_MODE_MASK		0x7
219 #define AMDGPU_TILING_BANK_WIDTH_SHIFT			15
220 #define AMDGPU_TILING_BANK_WIDTH_MASK			0x3
221 #define AMDGPU_TILING_BANK_HEIGHT_SHIFT			17
222 #define AMDGPU_TILING_BANK_HEIGHT_MASK			0x3
223 #define AMDGPU_TILING_MACRO_TILE_ASPECT_SHIFT		19
224 #define AMDGPU_TILING_MACRO_TILE_ASPECT_MASK		0x3
225 #define AMDGPU_TILING_NUM_BANKS_SHIFT			21
226 #define AMDGPU_TILING_NUM_BANKS_MASK			0x3
227 
228 #define AMDGPU_TILING_SET(field, value) \
229 	(((value) & AMDGPU_TILING_##field##_MASK) << AMDGPU_TILING_##field##_SHIFT)
230 #define AMDGPU_TILING_GET(value, field) \
231 	(((value) >> AMDGPU_TILING_##field##_SHIFT) & AMDGPU_TILING_##field##_MASK)
232 
233 #define AMDGPU_GEM_METADATA_OP_SET_METADATA                  1
234 #define AMDGPU_GEM_METADATA_OP_GET_METADATA                  2
235 
236 /** The same structure is shared for input/output */
237 struct drm_amdgpu_gem_metadata {
238 	/** GEM Object handle */
239 	__u32	handle;
240 	/** Do we want get or set metadata */
241 	__u32	op;
242 	struct {
243 		/** For future use, no flags defined so far */
244 		__u64	flags;
245 		/** family specific tiling info */
246 		__u64	tiling_info;
247 		__u32	data_size_bytes;
248 		__u32	data[64];
249 	} data;
250 };
251 
252 struct drm_amdgpu_gem_mmap_in {
253 	/** the GEM object handle */
254 	__u32 handle;
255 	__u32 _pad;
256 };
257 
258 struct drm_amdgpu_gem_mmap_out {
259 	/** mmap offset from the vma offset manager */
260 	__u64 addr_ptr;
261 };
262 
263 union drm_amdgpu_gem_mmap {
264 	struct drm_amdgpu_gem_mmap_in   in;
265 	struct drm_amdgpu_gem_mmap_out out;
266 };
267 
268 struct drm_amdgpu_gem_wait_idle_in {
269 	/** GEM object handle */
270 	__u32 handle;
271 	/** For future use, no flags defined so far */
272 	__u32 flags;
273 	/** Absolute timeout to wait */
274 	__u64 timeout;
275 };
276 
277 struct drm_amdgpu_gem_wait_idle_out {
278 	/** BO status:  0 - BO is idle, 1 - BO is busy */
279 	__u32 status;
280 	/** Returned current memory domain */
281 	__u32 domain;
282 };
283 
284 union drm_amdgpu_gem_wait_idle {
285 	struct drm_amdgpu_gem_wait_idle_in  in;
286 	struct drm_amdgpu_gem_wait_idle_out out;
287 };
288 
289 struct drm_amdgpu_wait_cs_in {
290 	/** Command submission handle */
291 	__u64 handle;
292 	/** Absolute timeout to wait */
293 	__u64 timeout;
294 	__u32 ip_type;
295 	__u32 ip_instance;
296 	__u32 ring;
297 	__u32 ctx_id;
298 };
299 
300 struct drm_amdgpu_wait_cs_out {
301 	/** CS status:  0 - CS completed, 1 - CS still busy */
302 	__u64 status;
303 };
304 
305 union drm_amdgpu_wait_cs {
306 	struct drm_amdgpu_wait_cs_in in;
307 	struct drm_amdgpu_wait_cs_out out;
308 };
309 
310 #define AMDGPU_GEM_OP_GET_GEM_CREATE_INFO	0
311 #define AMDGPU_GEM_OP_SET_PLACEMENT		1
312 
313 /* Sets or returns a value associated with a buffer. */
314 struct drm_amdgpu_gem_op {
315 	/** GEM object handle */
316 	__u32	handle;
317 	/** AMDGPU_GEM_OP_* */
318 	__u32	op;
319 	/** Input or return value */
320 	__u64	value;
321 };
322 
323 #define AMDGPU_VA_OP_MAP			1
324 #define AMDGPU_VA_OP_UNMAP			2
325 
326 /* Delay the page table update till the next CS */
327 #define AMDGPU_VM_DELAY_UPDATE		(1 << 0)
328 
329 /* Mapping flags */
330 /* readable mapping */
331 #define AMDGPU_VM_PAGE_READABLE		(1 << 1)
332 /* writable mapping */
333 #define AMDGPU_VM_PAGE_WRITEABLE	(1 << 2)
334 /* executable mapping, new for VI */
335 #define AMDGPU_VM_PAGE_EXECUTABLE	(1 << 3)
336 
337 struct drm_amdgpu_gem_va {
338 	/** GEM object handle */
339 	__u32 handle;
340 	__u32 _pad;
341 	/** AMDGPU_VA_OP_* */
342 	__u32 operation;
343 	/** AMDGPU_VM_PAGE_* */
344 	__u32 flags;
345 	/** va address to assign . Must be correctly aligned.*/
346 	__u64 va_address;
347 	/** Specify offset inside of BO to assign. Must be correctly aligned.*/
348 	__u64 offset_in_bo;
349 	/** Specify mapping size. Must be correctly aligned. */
350 	__u64 map_size;
351 };
352 
353 #define AMDGPU_HW_IP_GFX          0
354 #define AMDGPU_HW_IP_COMPUTE      1
355 #define AMDGPU_HW_IP_DMA          2
356 #define AMDGPU_HW_IP_UVD          3
357 #define AMDGPU_HW_IP_VCE          4
358 #define AMDGPU_HW_IP_NUM          5
359 
360 #define AMDGPU_HW_IP_INSTANCE_MAX_COUNT 1
361 
362 #define AMDGPU_CHUNK_ID_IB		0x01
363 #define AMDGPU_CHUNK_ID_FENCE		0x02
364 #define AMDGPU_CHUNK_ID_DEPENDENCIES	0x03
365 
366 struct drm_amdgpu_cs_chunk {
367 	__u32		chunk_id;
368 	__u32		length_dw;
369 	__u64		chunk_data;
370 };
371 
372 struct drm_amdgpu_cs_in {
373 	/** Rendering context id */
374 	__u32		ctx_id;
375 	/**  Handle of resource list associated with CS */
376 	__u32		bo_list_handle;
377 	__u32		num_chunks;
378 	__u32		_pad;
379 	/** this points to __u64 * which point to cs chunks */
380 	__u64		chunks;
381 };
382 
383 struct drm_amdgpu_cs_out {
384 	__u64 handle;
385 };
386 
387 union drm_amdgpu_cs {
388 	struct drm_amdgpu_cs_in in;
389 	struct drm_amdgpu_cs_out out;
390 };
391 
392 /* Specify flags to be used for IB */
393 
394 /* This IB should be submitted to CE */
395 #define AMDGPU_IB_FLAG_CE	(1<<0)
396 
397 /* CE Preamble */
398 #define AMDGPU_IB_FLAG_PREAMBLE (1<<1)
399 
400 struct drm_amdgpu_cs_chunk_ib {
401 	__u32 _pad;
402 	/** AMDGPU_IB_FLAG_* */
403 	__u32 flags;
404 	/** Virtual address to begin IB execution */
405 	__u64 va_start;
406 	/** Size of submission */
407 	__u32 ib_bytes;
408 	/** HW IP to submit to */
409 	__u32 ip_type;
410 	/** HW IP index of the same type to submit to  */
411 	__u32 ip_instance;
412 	/** Ring index to submit to */
413 	__u32 ring;
414 };
415 
416 struct drm_amdgpu_cs_chunk_dep {
417 	__u32 ip_type;
418 	__u32 ip_instance;
419 	__u32 ring;
420 	__u32 ctx_id;
421 	__u64 handle;
422 };
423 
424 struct drm_amdgpu_cs_chunk_fence {
425 	__u32 handle;
426 	__u32 offset;
427 };
428 
429 struct drm_amdgpu_cs_chunk_data {
430 	union {
431 		struct drm_amdgpu_cs_chunk_ib		ib_data;
432 		struct drm_amdgpu_cs_chunk_fence	fence_data;
433 	};
434 };
435 
436 /**
437  *  Query h/w info: Flag that this is integrated (a.h.a. fusion) GPU
438  *
439  */
440 #define AMDGPU_IDS_FLAGS_FUSION         0x1
441 #define AMDGPU_IDS_FLAGS_PREEMPTION     0x2
442 
443 /* indicate if acceleration can be working */
444 #define AMDGPU_INFO_ACCEL_WORKING		0x00
445 /* get the crtc_id from the mode object id? */
446 #define AMDGPU_INFO_CRTC_FROM_ID		0x01
447 /* query hw IP info */
448 #define AMDGPU_INFO_HW_IP_INFO			0x02
449 /* query hw IP instance count for the specified type */
450 #define AMDGPU_INFO_HW_IP_COUNT			0x03
451 /* timestamp for GL_ARB_timer_query */
452 #define AMDGPU_INFO_TIMESTAMP			0x05
453 /* Query the firmware version */
454 #define AMDGPU_INFO_FW_VERSION			0x0e
455 	/* Subquery id: Query VCE firmware version */
456 	#define AMDGPU_INFO_FW_VCE		0x1
457 	/* Subquery id: Query UVD firmware version */
458 	#define AMDGPU_INFO_FW_UVD		0x2
459 	/* Subquery id: Query GMC firmware version */
460 	#define AMDGPU_INFO_FW_GMC		0x03
461 	/* Subquery id: Query GFX ME firmware version */
462 	#define AMDGPU_INFO_FW_GFX_ME		0x04
463 	/* Subquery id: Query GFX PFP firmware version */
464 	#define AMDGPU_INFO_FW_GFX_PFP		0x05
465 	/* Subquery id: Query GFX CE firmware version */
466 	#define AMDGPU_INFO_FW_GFX_CE		0x06
467 	/* Subquery id: Query GFX RLC firmware version */
468 	#define AMDGPU_INFO_FW_GFX_RLC		0x07
469 	/* Subquery id: Query GFX MEC firmware version */
470 	#define AMDGPU_INFO_FW_GFX_MEC		0x08
471 	/* Subquery id: Query SMC firmware version */
472 	#define AMDGPU_INFO_FW_SMC		0x0a
473 	/* Subquery id: Query SDMA firmware version */
474 	#define AMDGPU_INFO_FW_SDMA		0x0b
475 /* number of bytes moved for TTM migration */
476 #define AMDGPU_INFO_NUM_BYTES_MOVED		0x0f
477 /* the used VRAM size */
478 #define AMDGPU_INFO_VRAM_USAGE			0x10
479 /* the used GTT size */
480 #define AMDGPU_INFO_GTT_USAGE			0x11
481 /* Information about GDS, etc. resource configuration */
482 #define AMDGPU_INFO_GDS_CONFIG			0x13
483 /* Query information about VRAM and GTT domains */
484 #define AMDGPU_INFO_VRAM_GTT			0x14
485 /* Query information about register in MMR address space*/
486 #define AMDGPU_INFO_READ_MMR_REG		0x15
487 /* Query information about device: rev id, family, etc. */
488 #define AMDGPU_INFO_DEV_INFO			0x16
489 /* visible vram usage */
490 #define AMDGPU_INFO_VIS_VRAM_USAGE		0x17
491 /* number of TTM buffer evictions */
492 #define AMDGPU_INFO_NUM_EVICTIONS		0x18
493 /* Query memory about VRAM and GTT domains */
494 #define AMDGPU_INFO_MEMORY			0x19
495 /* Query vce clock table */
496 #define AMDGPU_INFO_VCE_CLOCK_TABLE		0x1A
497 
498 #define AMDGPU_INFO_MMR_SE_INDEX_SHIFT	0
499 #define AMDGPU_INFO_MMR_SE_INDEX_MASK	0xff
500 #define AMDGPU_INFO_MMR_SH_INDEX_SHIFT	8
501 #define AMDGPU_INFO_MMR_SH_INDEX_MASK	0xff
502 
503 struct drm_amdgpu_query_fw {
504 	/** AMDGPU_INFO_FW_* */
505 	__u32 fw_type;
506 	/**
507 	 * Index of the IP if there are more IPs of
508 	 * the same type.
509 	 */
510 	__u32 ip_instance;
511 	/**
512 	 * Index of the engine. Whether this is used depends
513 	 * on the firmware type. (e.g. MEC, SDMA)
514 	 */
515 	__u32 index;
516 	__u32 _pad;
517 };
518 
519 /* Input structure for the INFO ioctl */
520 struct drm_amdgpu_info {
521 	/* Where the return value will be stored */
522 	__u64 return_pointer;
523 	/* The size of the return value. Just like "size" in "snprintf",
524 	 * it limits how many bytes the kernel can write. */
525 	__u32 return_size;
526 	/* The query request id. */
527 	__u32 query;
528 
529 	union {
530 		struct {
531 			__u32 id;
532 			__u32 _pad;
533 		} mode_crtc;
534 
535 		struct {
536 			/** AMDGPU_HW_IP_* */
537 			__u32 type;
538 			/**
539 			 * Index of the IP if there are more IPs of the same
540 			 * type. Ignored by AMDGPU_INFO_HW_IP_COUNT.
541 			 */
542 			__u32 ip_instance;
543 		} query_hw_ip;
544 
545 		struct {
546 			__u32 dword_offset;
547 			/** number of registers to read */
548 			__u32 count;
549 			__u32 instance;
550 			/** For future use, no flags defined so far */
551 			__u32 flags;
552 		} read_mmr_reg;
553 
554 		struct drm_amdgpu_query_fw query_fw;
555 	};
556 };
557 
558 struct drm_amdgpu_info_gds {
559 	/** GDS GFX partition size */
560 	__u32 gds_gfx_partition_size;
561 	/** GDS compute partition size */
562 	__u32 compute_partition_size;
563 	/** total GDS memory size */
564 	__u32 gds_total_size;
565 	/** GWS size per GFX partition */
566 	__u32 gws_per_gfx_partition;
567 	/** GSW size per compute partition */
568 	__u32 gws_per_compute_partition;
569 	/** OA size per GFX partition */
570 	__u32 oa_per_gfx_partition;
571 	/** OA size per compute partition */
572 	__u32 oa_per_compute_partition;
573 	__u32 _pad;
574 };
575 
576 struct drm_amdgpu_info_vram_gtt {
577 	__u64 vram_size;
578 	__u64 vram_cpu_accessible_size;
579 	__u64 gtt_size;
580 };
581 
582 struct drm_amdgpu_heap_info {
583 	/** max. physical memory */
584 	__u64 total_heap_size;
585 
586 	/** Theoretical max. available memory in the given heap */
587 	__u64 usable_heap_size;
588 
589 	/**
590 	 * Number of bytes allocated in the heap. This includes all processes
591 	 * and private allocations in the kernel. It changes when new buffers
592 	 * are allocated, freed, and moved. It cannot be larger than
593 	 * heap_size.
594 	 */
595 	__u64 heap_usage;
596 
597 	/**
598 	 * Theoretical possible max. size of buffer which
599 	 * could be allocated in the given heap
600 	 */
601 	__u64 max_allocation;
602 };
603 
604 struct drm_amdgpu_memory_info {
605 	struct drm_amdgpu_heap_info vram;
606 	struct drm_amdgpu_heap_info cpu_accessible_vram;
607 	struct drm_amdgpu_heap_info gtt;
608 };
609 
610 struct drm_amdgpu_info_firmware {
611 	__u32 ver;
612 	__u32 feature;
613 };
614 
615 #define AMDGPU_VRAM_TYPE_UNKNOWN 0
616 #define AMDGPU_VRAM_TYPE_GDDR1 1
617 #define AMDGPU_VRAM_TYPE_DDR2  2
618 #define AMDGPU_VRAM_TYPE_GDDR3 3
619 #define AMDGPU_VRAM_TYPE_GDDR4 4
620 #define AMDGPU_VRAM_TYPE_GDDR5 5
621 #define AMDGPU_VRAM_TYPE_HBM   6
622 #define AMDGPU_VRAM_TYPE_DDR3  7
623 
624 struct drm_amdgpu_info_device {
625 	/** PCI Device ID */
626 	__u32 device_id;
627 	/** Internal chip revision: A0, A1, etc.) */
628 	__u32 chip_rev;
629 	__u32 external_rev;
630 	/** Revision id in PCI Config space */
631 	__u32 pci_rev;
632 	__u32 family;
633 	__u32 num_shader_engines;
634 	__u32 num_shader_arrays_per_engine;
635 	/* in KHz */
636 	__u32 gpu_counter_freq;
637 	__u64 max_engine_clock;
638 	__u64 max_memory_clock;
639 	/* cu information */
640 	__u32 cu_active_number;
641 	__u32 cu_ao_mask;
642 	__u32 cu_bitmap[4][4];
643 	/** Render backend pipe mask. One render backend is CB+DB. */
644 	__u32 enabled_rb_pipes_mask;
645 	__u32 num_rb_pipes;
646 	__u32 num_hw_gfx_contexts;
647 	__u32 _pad;
648 	__u64 ids_flags;
649 	/** Starting virtual address for UMDs. */
650 	__u64 virtual_address_offset;
651 	/** The maximum virtual address */
652 	__u64 virtual_address_max;
653 	/** Required alignment of virtual addresses. */
654 	__u32 virtual_address_alignment;
655 	/** Page table entry - fragment size */
656 	__u32 pte_fragment_size;
657 	__u32 gart_page_size;
658 	/** constant engine ram size*/
659 	__u32 ce_ram_size;
660 	/** video memory type info*/
661 	__u32 vram_type;
662 	/** video memory bit width*/
663 	__u32 vram_bit_width;
664 	/* vce harvesting instance */
665 	__u32 vce_harvest_config;
666 };
667 
668 struct drm_amdgpu_info_hw_ip {
669 	/** Version of h/w IP */
670 	__u32  hw_ip_version_major;
671 	__u32  hw_ip_version_minor;
672 	/** Capabilities */
673 	__u64  capabilities_flags;
674 	/** command buffer address start alignment*/
675 	__u32  ib_start_alignment;
676 	/** command buffer size alignment*/
677 	__u32  ib_size_alignment;
678 	/** Bitmask of available rings. Bit 0 means ring 0, etc. */
679 	__u32  available_rings;
680 	__u32  _pad;
681 };
682 
683 #define AMDGPU_VCE_CLOCK_TABLE_ENTRIES		6
684 
685 struct drm_amdgpu_info_vce_clock_table_entry {
686 	/** System clock */
687 	__u32 sclk;
688 	/** Memory clock */
689 	__u32 mclk;
690 	/** VCE clock */
691 	__u32 eclk;
692 	__u32 pad;
693 };
694 
695 struct drm_amdgpu_info_vce_clock_table {
696 	struct drm_amdgpu_info_vce_clock_table_entry entries[AMDGPU_VCE_CLOCK_TABLE_ENTRIES];
697 	__u32 num_valid_entries;
698 	__u32 pad;
699 };
700 
701 /*
702  * Supported GPU families
703  */
704 #define AMDGPU_FAMILY_UNKNOWN			0
705 #define AMDGPU_FAMILY_SI			110 /* Hainan, Oland, Verde, Pitcairn, Tahiti */
706 #define AMDGPU_FAMILY_CI			120 /* Bonaire, Hawaii */
707 #define AMDGPU_FAMILY_KV			125 /* Kaveri, Kabini, Mullins */
708 #define AMDGPU_FAMILY_VI			130 /* Iceland, Tonga */
709 #define AMDGPU_FAMILY_CZ			135 /* Carrizo, Stoney */
710 
711 #if defined(__cplusplus)
712 }
713 #endif
714 
715 #endif
716