1 /*
2  * Copyright 2019 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  */
23 
24 #ifndef __MES_API_DEF_H__
25 #define __MES_API_DEF_H__
26 
27 #pragma pack(push, 4)
28 
29 #define MES_API_VERSION 1
30 
31 /* Driver submits one API(cmd) as a single Frame and this command size is same
32  * for all API to ease the debugging and parsing of ring buffer.
33  */
34 enum { API_FRAME_SIZE_IN_DWORDS = 64 };
35 
36 /* To avoid command in scheduler context to be overwritten whenenver mutilple
37  * interrupts come in, this creates another queue.
38  */
39 enum { API_NUMBER_OF_COMMAND_MAX = 32 };
40 
41 enum MES_API_TYPE {
42 	MES_API_TYPE_SCHEDULER = 1,
43 	MES_API_TYPE_MAX
44 };
45 
46 enum MES_SCH_API_OPCODE {
47 	MES_SCH_API_SET_HW_RSRC			= 0,
48 	MES_SCH_API_SET_SCHEDULING_CONFIG	= 1, /* agreegated db, quantums, etc */
49 	MES_SCH_API_ADD_QUEUE			= 2,
50 	MES_SCH_API_REMOVE_QUEUE		= 3,
51 	MES_SCH_API_PERFORM_YIELD		= 4,
52 	MES_SCH_API_SET_GANG_PRIORITY_LEVEL	= 5,
53 	MES_SCH_API_SUSPEND			= 6,
54 	MES_SCH_API_RESUME			= 7,
55 	MES_SCH_API_RESET			= 8,
56 	MES_SCH_API_SET_LOG_BUFFER		= 9,
57 	MES_SCH_API_CHANGE_GANG_PRORITY		= 10,
58 	MES_SCH_API_QUERY_SCHEDULER_STATUS	= 11,
59 	MES_SCH_API_PROGRAM_GDS			= 12,
60 	MES_SCH_API_SET_DEBUG_VMID		= 13,
61 	MES_SCH_API_MISC			= 14,
62 	MES_SCH_API_UPDATE_ROOT_PAGE_TABLE      = 15,
63 	MES_SCH_API_AMD_LOG                     = 16,
64 	MES_SCH_API_MAX				= 0xFF
65 };
66 
67 union MES_API_HEADER {
68 	struct {
69 		uint32_t type		: 4; /* 0 - Invalid; 1 - Scheduling; 2 - TBD */
70 		uint32_t opcode		: 8;
71 		uint32_t dwsize		: 8; /* including header */
72 		uint32_t reserved	: 12;
73 	};
74 
75 	uint32_t	u32All;
76 };
77 
78 enum MES_AMD_PRIORITY_LEVEL {
79 	AMD_PRIORITY_LEVEL_LOW		= 0,
80 	AMD_PRIORITY_LEVEL_NORMAL	= 1,
81 	AMD_PRIORITY_LEVEL_MEDIUM	= 2,
82 	AMD_PRIORITY_LEVEL_HIGH		= 3,
83 	AMD_PRIORITY_LEVEL_REALTIME	= 4,
84 	AMD_PRIORITY_NUM_LEVELS
85 };
86 
87 enum MES_QUEUE_TYPE {
88 	MES_QUEUE_TYPE_GFX,
89 	MES_QUEUE_TYPE_COMPUTE,
90 	MES_QUEUE_TYPE_SDMA,
91 	MES_QUEUE_TYPE_MAX,
92 };
93 
94 struct MES_API_STATUS {
95 	uint64_t	api_completion_fence_addr;
96 	uint64_t	api_completion_fence_value;
97 };
98 
99 enum { MAX_COMPUTE_PIPES = 8 };
100 enum { MAX_GFX_PIPES = 2 };
101 enum { MAX_SDMA_PIPES = 2 };
102 
103 enum { MAX_COMPUTE_HQD_PER_PIPE = 8 };
104 enum { MAX_GFX_HQD_PER_PIPE = 8 };
105 enum { MAX_SDMA_HQD_PER_PIPE = 10 };
106 
107 enum { MAX_QUEUES_IN_A_GANG = 8 };
108 
109 enum VM_HUB_TYPE {
110 	VM_HUB_TYPE_GC = 0,
111 	VM_HUB_TYPE_MM = 1,
112 	VM_HUB_TYPE_MAX,
113 };
114 
115 enum { VMID_INVALID = 0xffff };
116 
117 enum { MAX_VMID_GCHUB = 16 };
118 enum { MAX_VMID_MMHUB = 16 };
119 
120 enum MES_LOG_OPERATION {
121 	MES_LOG_OPERATION_CONTEXT_STATE_CHANGE = 0,
122 	MES_LOG_OPERATION_QUEUE_NEW_WORK = 1,
123 	MES_LOG_OPERATION_QUEUE_UNWAIT_SYNC_OBJECT = 2,
124 	MES_LOG_OPERATION_QUEUE_NO_MORE_WORK = 3,
125 	MES_LOG_OPERATION_QUEUE_WAIT_SYNC_OBJECT = 4,
126 	MES_LOG_OPERATION_QUEUE_INVALID = 0xF,
127 };
128 
129 enum MES_LOG_CONTEXT_STATE {
130 	MES_LOG_CONTEXT_STATE_IDLE		= 0,
131 	MES_LOG_CONTEXT_STATE_RUNNING		= 1,
132 	MES_LOG_CONTEXT_STATE_READY		= 2,
133 	MES_LOG_CONTEXT_STATE_READY_STANDBY	= 3,
134 	MES_LOG_CONTEXT_STATE_INVALID           = 0xF,
135 };
136 
137 struct MES_LOG_CONTEXT_STATE_CHANGE {
138 	void				*h_context;
139 	enum MES_LOG_CONTEXT_STATE	new_context_state;
140 };
141 
142 struct MES_LOG_QUEUE_NEW_WORK {
143 	uint64_t                   h_queue;
144 	uint64_t                   reserved;
145 };
146 
147 struct MES_LOG_QUEUE_UNWAIT_SYNC_OBJECT {
148 	uint64_t                   h_queue;
149 	uint64_t                   h_sync_object;
150 };
151 
152 struct MES_LOG_QUEUE_NO_MORE_WORK {
153 	uint64_t                   h_queue;
154 	uint64_t                   reserved;
155 };
156 
157 struct MES_LOG_QUEUE_WAIT_SYNC_OBJECT {
158 	uint64_t                   h_queue;
159 	uint64_t                   h_sync_object;
160 };
161 
162 struct MES_LOG_ENTRY_HEADER {
163 	uint32_t	first_free_entry_index;
164 	uint32_t	wraparound_count;
165 	uint64_t	number_of_entries;
166 	uint64_t	reserved[2];
167 };
168 
169 struct MES_LOG_ENTRY_DATA {
170 	uint64_t	gpu_time_stamp;
171 	uint32_t	operation_type; /* operation_type is of MES_LOG_OPERATION type */
172 	uint32_t	reserved_operation_type_bits;
173 	union {
174 		struct MES_LOG_CONTEXT_STATE_CHANGE     context_state_change;
175 		struct MES_LOG_QUEUE_NEW_WORK           queue_new_work;
176 		struct MES_LOG_QUEUE_UNWAIT_SYNC_OBJECT queue_unwait_sync_object;
177 		struct MES_LOG_QUEUE_NO_MORE_WORK       queue_no_more_work;
178 		struct MES_LOG_QUEUE_WAIT_SYNC_OBJECT   queue_wait_sync_object;
179 		uint64_t                                all[2];
180 	};
181 };
182 
183 struct MES_LOG_BUFFER {
184 	struct MES_LOG_ENTRY_HEADER	header;
185 	struct MES_LOG_ENTRY_DATA	entries[1];
186 };
187 
188 enum MES_SWIP_TO_HWIP_DEF {
189 	MES_MAX_HWIP_SEGMENT = 6,
190 };
191 
192 union MESAPI_SET_HW_RESOURCES {
193 	struct {
194 		union MES_API_HEADER	header;
195 		uint32_t		vmid_mask_mmhub;
196 		uint32_t		vmid_mask_gfxhub;
197 		uint32_t		gds_size;
198 		uint32_t		paging_vmid;
199 		uint32_t		compute_hqd_mask[MAX_COMPUTE_PIPES];
200 		uint32_t		gfx_hqd_mask[MAX_GFX_PIPES];
201 		uint32_t		sdma_hqd_mask[MAX_SDMA_PIPES];
202 		uint32_t		aggregated_doorbells[AMD_PRIORITY_NUM_LEVELS];
203 		uint64_t		g_sch_ctx_gpu_mc_ptr;
204 		uint64_t		query_status_fence_gpu_mc_ptr;
205 		uint32_t		gc_base[MES_MAX_HWIP_SEGMENT];
206 		uint32_t		mmhub_base[MES_MAX_HWIP_SEGMENT];
207 		uint32_t		osssys_base[MES_MAX_HWIP_SEGMENT];
208 		struct MES_API_STATUS	api_status;
209 		union {
210 			struct {
211 				uint32_t disable_reset	: 1;
212 				uint32_t use_different_vmid_compute : 1;
213 				uint32_t disable_mes_log   : 1;
214 				uint32_t apply_mmhub_pgvm_invalidate_ack_loss_wa : 1;
215 				uint32_t apply_grbm_remote_register_dummy_read_wa : 1;
216 				uint32_t second_gfx_pipe_enabled : 1;
217 				uint32_t enable_level_process_quantum_check : 1;
218 				uint32_t apply_cwsr_program_all_vmid_sq_shader_tba_registers_wa : 1;
219 				uint32_t enable_mqd_active_poll : 1;
220 				uint32_t disable_timer_int : 1;
221 				uint32_t reserved	: 22;
222 			};
223 			uint32_t	uint32_t_all;
224 		};
225 	};
226 
227 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
228 };
229 
230 union MESAPI__ADD_QUEUE {
231 	struct {
232 		union MES_API_HEADER		header;
233 		uint32_t			process_id;
234 		uint64_t			page_table_base_addr;
235 		uint64_t			process_va_start;
236 		uint64_t			process_va_end;
237 		uint64_t			process_quantum;
238 		uint64_t			process_context_addr;
239 		uint64_t			gang_quantum;
240 		uint64_t			gang_context_addr;
241 		uint32_t			inprocess_gang_priority;
242 		enum MES_AMD_PRIORITY_LEVEL	gang_global_priority_level;
243 		uint32_t			doorbell_offset;
244 		uint64_t			mqd_addr;
245 		uint64_t			wptr_addr;
246 		uint64_t                        h_context;
247 		uint64_t                        h_queue;
248 		enum MES_QUEUE_TYPE		queue_type;
249 		uint32_t			gds_base;
250 		uint32_t			gds_size;
251 		uint32_t			gws_base;
252 		uint32_t			gws_size;
253 		uint32_t			oa_mask;
254 		uint64_t                        trap_handler_addr;
255 		uint32_t                        vm_context_cntl;
256 
257 		struct {
258 			uint32_t paging			: 1;
259 			uint32_t debug_vmid		: 4;
260 			uint32_t program_gds		: 1;
261 			uint32_t is_gang_suspended	: 1;
262 			uint32_t is_tmz_queue		: 1;
263 			uint32_t map_kiq_utility_queue  : 1;
264 			uint32_t reserved		: 23;
265 		};
266 		struct MES_API_STATUS		api_status;
267 	};
268 
269 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
270 };
271 
272 union MESAPI__REMOVE_QUEUE {
273 	struct {
274 		union MES_API_HEADER	header;
275 		uint32_t		doorbell_offset;
276 		uint64_t		gang_context_addr;
277 
278 		struct {
279 			uint32_t unmap_legacy_gfx_queue   : 1;
280 			uint32_t unmap_kiq_utility_queue  : 1;
281 			uint32_t preempt_legacy_gfx_queue : 1;
282 			uint32_t reserved                 : 29;
283 		};
284 		struct MES_API_STATUS	    api_status;
285 
286 		uint32_t                    pipe_id;
287 		uint32_t                    queue_id;
288 
289 		uint64_t                    tf_addr;
290 		uint32_t                    tf_data;
291 	};
292 
293 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
294 };
295 
296 union MESAPI__SET_SCHEDULING_CONFIG {
297 	struct {
298 		union MES_API_HEADER	header;
299 		/* Grace period when preempting another priority band for this
300 		 * priority band. The value for idle priority band is ignored,
301 		 * as it never preempts other bands.
302 		 */
303 		uint64_t		grace_period_other_levels[AMD_PRIORITY_NUM_LEVELS];
304 		/* Default quantum for scheduling across processes within
305 		 * a priority band.
306 		 */
307 		uint64_t		process_quantum_for_level[AMD_PRIORITY_NUM_LEVELS];
308 		/* Default grace period for processes that preempt each other
309 		 * within a priority band.
310 		 */
311 		uint64_t		process_grace_period_same_level[AMD_PRIORITY_NUM_LEVELS];
312 		/* For normal level this field specifies the target GPU
313 		 * percentage in situations when it's starved by the high level.
314 		 * Valid values are between 0 and 50, with the default being 10.
315 		 */
316 		uint32_t		normal_yield_percent;
317 		struct MES_API_STATUS	api_status;
318 	};
319 
320 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
321 };
322 
323 union MESAPI__PERFORM_YIELD {
324 	struct {
325 		union MES_API_HEADER	header;
326 		uint32_t		dummy;
327 		struct MES_API_STATUS	api_status;
328 	};
329 
330 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
331 };
332 
333 union MESAPI__CHANGE_GANG_PRIORITY_LEVEL {
334 	struct {
335 		union MES_API_HEADER		header;
336 		uint32_t			inprocess_gang_priority;
337 		enum MES_AMD_PRIORITY_LEVEL	gang_global_priority_level;
338 		uint64_t			gang_quantum;
339 		uint64_t			gang_context_addr;
340 		struct MES_API_STATUS		api_status;
341 	};
342 
343 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
344 };
345 
346 union MESAPI__SUSPEND {
347 	struct {
348 		union MES_API_HEADER	header;
349 		/* false - suspend all gangs; true - specific gang */
350 		struct {
351 			uint32_t suspend_all_gangs	: 1;
352 			uint32_t reserved		: 31;
353 		};
354 		/* gang_context_addr is valid only if suspend_all = false */
355 		uint64_t		gang_context_addr;
356 
357 		uint64_t		suspend_fence_addr;
358 		uint32_t		suspend_fence_value;
359 
360 		struct MES_API_STATUS	api_status;
361 	};
362 
363 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
364 };
365 
366 union MESAPI__RESUME {
367 	struct {
368 		union MES_API_HEADER	header;
369 		/* false - resume all gangs; true - specified gang */
370 		struct {
371 			uint32_t resume_all_gangs	: 1;
372 			uint32_t reserved		: 31;
373 		};
374 		/* valid only if resume_all_gangs = false */
375 		uint64_t		gang_context_addr;
376 
377 		struct MES_API_STATUS	api_status;
378 	};
379 
380 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
381 };
382 
383 union MESAPI__RESET {
384 	struct {
385 		union MES_API_HEADER		header;
386 
387 		struct {
388 			/* Only reset the queue given by doorbell_offset (not entire gang) */
389 			uint32_t                reset_queue_only : 1;
390 			/* Hang detection first then reset any queues that are hung */
391 			uint32_t                hang_detect_then_reset : 1;
392 			/* Only do hang detection (no reset) */
393 			uint32_t                hang_detect_only : 1;
394 			/* Rest HP and LP kernel queues not managed by MES */
395 			uint32_t                reset_legacy_gfx : 1;
396 			uint32_t                reserved : 28;
397 		};
398 
399 		uint64_t			gang_context_addr;
400 
401 		/* valid only if reset_queue_only = true */
402 		uint32_t			doorbell_offset;
403 
404 		/* valid only if hang_detect_then_reset = true */
405 		uint64_t			doorbell_offset_addr;
406 		enum MES_QUEUE_TYPE		queue_type;
407 
408 		/* valid only if reset_legacy_gfx = true */
409 		uint32_t			pipe_id_lp;
410 		uint32_t			queue_id_lp;
411 		uint32_t			vmid_id_lp;
412 		uint64_t			mqd_mc_addr_lp;
413 		uint32_t			doorbell_offset_lp;
414 		uint64_t			wptr_addr_lp;
415 
416 		uint32_t			pipe_id_hp;
417 		uint32_t			queue_id_hp;
418 		uint32_t			vmid_id_hp;
419 		uint64_t			mqd_mc_addr_hp;
420 		uint32_t			doorbell_offset_hp;
421 		uint64_t			wptr_addr_hp;
422 
423 		struct MES_API_STATUS		api_status;
424 	};
425 
426 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
427 };
428 
429 union MESAPI__SET_LOGGING_BUFFER {
430 	struct {
431 		union MES_API_HEADER	header;
432 		/* There are separate log buffers for each queue type */
433 		enum MES_QUEUE_TYPE	log_type;
434 		/* Log buffer GPU Address */
435 		uint64_t		logging_buffer_addr;
436 		/* number of entries in the log buffer */
437 		uint32_t		number_of_entries;
438 		/* Entry index at which CPU interrupt needs to be signalled */
439 		uint32_t		interrupt_entry;
440 
441 		struct MES_API_STATUS	api_status;
442 	};
443 
444 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
445 };
446 
447 union MESAPI__QUERY_MES_STATUS {
448 	struct {
449 		union MES_API_HEADER	header;
450 		bool			mes_healthy; /* 0 - not healthy, 1 - healthy */
451 		struct MES_API_STATUS	api_status;
452 	};
453 
454 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
455 };
456 
457 union MESAPI__PROGRAM_GDS {
458 	struct {
459 		union MES_API_HEADER	header;
460 		uint64_t		process_context_addr;
461 		uint32_t		gds_base;
462 		uint32_t		gds_size;
463 		uint32_t		gws_base;
464 		uint32_t		gws_size;
465 		uint32_t		oa_mask;
466 		struct MES_API_STATUS	api_status;
467 	};
468 
469 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
470 };
471 
472 union MESAPI__SET_DEBUG_VMID {
473 	struct {
474 		union MES_API_HEADER	header;
475 		struct MES_API_STATUS	api_status;
476 		union {
477 			struct {
478 				uint32_t use_gds	: 1;
479 				uint32_t reserved	: 31;
480 			} flags;
481 			uint32_t	u32All;
482 		};
483 		uint32_t		reserved;
484 		uint32_t		debug_vmid;
485 		uint64_t		process_context_addr;
486 		uint64_t		page_table_base_addr;
487 		uint64_t		process_va_start;
488 		uint64_t		process_va_end;
489 		uint32_t		gds_base;
490 		uint32_t		gds_size;
491 		uint32_t		gws_base;
492 		uint32_t		gws_size;
493 		uint32_t		oa_mask;
494 	};
495 
496 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
497 };
498 
499 enum MESAPI_MISC_OPCODE {
500 	MESAPI_MISC__MODIFY_REG,
501 	MESAPI_MISC__INV_GART,
502 	MESAPI_MISC__QUERY_STATUS,
503 	MESAPI_MISC__MAX,
504 };
505 
506 enum MODIFY_REG_SUBCODE {
507 	MODIFY_REG__OVERWRITE,
508 	MODIFY_REG__RMW_OR,
509 	MODIFY_REG__RMW_AND,
510 	MODIFY_REG__MAX,
511 };
512 
513 enum { MISC_DATA_MAX_SIZE_IN_DWORDS = 20 };
514 
515 struct MODIFY_REG {
516 	enum MODIFY_REG_SUBCODE   subcode;
517 	uint32_t                  reg_offset;
518 	uint32_t                  reg_value;
519 };
520 
521 struct INV_GART {
522 	uint64_t                  inv_range_va_start;
523 	uint64_t                  inv_range_size;
524 };
525 
526 struct QUERY_STATUS {
527 	uint32_t context_id;
528 };
529 
530 union MESAPI__MISC {
531 	struct {
532 		union MES_API_HEADER	header;
533 		enum MESAPI_MISC_OPCODE	opcode;
534 		struct MES_API_STATUS	api_status;
535 
536 		union {
537 			struct		MODIFY_REG modify_reg;
538 			struct		INV_GART inv_gart;
539 			struct		QUERY_STATUS query_status;
540 			uint32_t	data[MISC_DATA_MAX_SIZE_IN_DWORDS];
541 		};
542 	};
543 
544 	uint32_t	max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
545 };
546 
547 union MESAPI__UPDATE_ROOT_PAGE_TABLE {
548 	struct {
549 		union MES_API_HEADER        header;
550 		uint64_t                    page_table_base_addr;
551 		uint64_t                    process_context_addr;
552 		struct MES_API_STATUS       api_status;
553 	};
554 
555 	uint32_t max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
556 };
557 
558 union MESAPI_AMD_LOG {
559 	struct {
560 		union MES_API_HEADER        header;
561 		uint64_t                    p_buffer_memory;
562 		uint64_t                    p_buffer_size_used;
563 		struct MES_API_STATUS       api_status;
564 	};
565 
566 	uint32_t max_dwords_in_api[API_FRAME_SIZE_IN_DWORDS];
567 };
568 
569 #pragma pack(pop)
570 #endif
571