1  /* SPDX-License-Identifier: MIT */
2  /*
3   * Copyright (C) 2020-2023 Intel Corporation
4   */
5  
6  /**
7   * @file
8   * @brief JSM shared definitions
9   *
10   * @ingroup Jsm
11   * @brief JSM shared definitions
12   * @{
13   */
14  #ifndef VPU_JSM_API_H
15  #define VPU_JSM_API_H
16  
17  /*
18   * Major version changes that break backward compatibility
19   */
20  #define VPU_JSM_API_VER_MAJOR 3
21  
22  /*
23   * Minor version changes when API backward compatibility is preserved.
24   */
25  #define VPU_JSM_API_VER_MINOR 0
26  
27  /*
28   * API header changed (field names, documentation, formatting) but API itself has not been changed
29   */
30  #define VPU_JSM_API_VER_PATCH 1
31  
32  /*
33   * Index in the API version table
34   */
35  #define VPU_JSM_API_VER_INDEX 4
36  
37  /*
38   * Number of Priority Bands for Hardware Scheduling
39   * Bands: RealTime, Focus, Normal, Idle
40   */
41  #define VPU_HWS_NUM_PRIORITY_BANDS 4
42  
43  /* Max number of impacted contexts that can be dealt with the engine reset command */
44  #define VPU_MAX_ENGINE_RESET_IMPACTED_CONTEXTS 3
45  
46  /** Pack the API structures for now, once alignment issues are fixed this can be removed */
47  #pragma pack(push, 1)
48  
49  /*
50   * Engine indexes.
51   */
52  #define VPU_ENGINE_COMPUTE 0
53  #define VPU_ENGINE_COPY	   1
54  #define VPU_ENGINE_NB	   2
55  
56  /*
57   * VPU status values.
58   */
59  #define VPU_JSM_STATUS_SUCCESS				 0x0U
60  #define VPU_JSM_STATUS_PARSING_ERR			 0x1U
61  #define VPU_JSM_STATUS_PROCESSING_ERR			 0x2U
62  #define VPU_JSM_STATUS_PREEMPTED			 0x3U
63  #define VPU_JSM_STATUS_ABORTED				 0x4U
64  #define VPU_JSM_STATUS_USER_CTX_VIOL_ERR		 0x5U
65  #define VPU_JSM_STATUS_GLOBAL_CTX_VIOL_ERR		 0x6U
66  #define VPU_JSM_STATUS_MVNCI_WRONG_INPUT_FORMAT		 0x7U
67  #define VPU_JSM_STATUS_MVNCI_UNSUPPORTED_NETWORK_ELEMENT 0x8U
68  #define VPU_JSM_STATUS_MVNCI_INVALID_HANDLE		 0x9U
69  #define VPU_JSM_STATUS_MVNCI_OUT_OF_RESOURCES		 0xAU
70  #define VPU_JSM_STATUS_MVNCI_NOT_IMPLEMENTED		 0xBU
71  #define VPU_JSM_STATUS_MVNCI_INTERNAL_ERROR		 0xCU
72  /* Job status returned when the job was preempted mid-inference */
73  #define VPU_JSM_STATUS_PREEMPTED_MID_INFERENCE		 0xDU
74  
75  /*
76   * Host <-> VPU IPC channels.
77   * ASYNC commands use a high priority channel, other messages use low-priority ones.
78   */
79  #define VPU_IPC_CHAN_ASYNC_CMD 0
80  #define VPU_IPC_CHAN_GEN_CMD   10
81  #define VPU_IPC_CHAN_JOB_RET   11
82  
83  /*
84   * Job flags bit masks.
85   */
86  #define VPU_JOB_FLAGS_NULL_SUBMISSION_MASK 0x00000001
87  
88  /*
89   * Sizes of the reserved areas in jobs, in bytes.
90   */
91  #define VPU_JOB_RESERVED_BYTES	     16
92  /*
93   * Sizes of the reserved areas in job queues, in bytes.
94   */
95  #define VPU_JOB_QUEUE_RESERVED_BYTES 52
96  
97  /*
98   * Max length (including trailing NULL char) of trace entity name (e.g., the
99   * name of a logging destination or a loggable HW component).
100   */
101  #define VPU_TRACE_ENTITY_NAME_MAX_LEN 32
102  
103  /*
104   * Max length (including trailing NULL char) of a dyndbg command.
105   *
106   * NOTE: 96 is used so that the size of 'struct vpu_ipc_msg' in the JSM API is
107   * 128 bytes (multiple of 64 bytes, the cache line size).
108   */
109  #define VPU_DYNDBG_CMD_MAX_LEN 96
110  
111  /*
112   * Job format.
113   */
114  struct vpu_job_queue_entry {
115  	u64 batch_buf_addr; /**< Address of VPU commands batch buffer */
116  	u32 job_id;	  /**< Job ID */
117  	u32 flags; /**< Flags bit field, see VPU_JOB_FLAGS_* above */
118  	u64 root_page_table_addr; /**< Address of root page table to use for this job */
119  	u64 root_page_table_update_counter; /**< Page tables update events counter */
120  	u64 preemption_buffer_address; /**< Address of the preemption buffer to use for this job */
121  	u64 preemption_buffer_size; /**< Size of the preemption buffer to use for this job */
122  	u8 reserved_0[VPU_JOB_RESERVED_BYTES];
123  };
124  
125  /*
126   * Job queue control registers.
127   */
128  struct vpu_job_queue_header {
129  	u32 engine_idx;
130  	u32 head;
131  	u32 tail;
132  	u8 reserved_0[VPU_JOB_QUEUE_RESERVED_BYTES];
133  };
134  
135  /*
136   * Job queue format.
137   */
138  struct vpu_job_queue {
139  	struct vpu_job_queue_header header;
140  	struct vpu_job_queue_entry job[];
141  };
142  
143  /**
144   * Logging entity types.
145   *
146   * This enum defines the different types of entities involved in logging.
147   */
148  enum vpu_trace_entity_type {
149  	/** Logging destination (entity where logs can be stored / printed). */
150  	VPU_TRACE_ENTITY_TYPE_DESTINATION = 1,
151  	/** Loggable HW component (HW entity that can be logged). */
152  	VPU_TRACE_ENTITY_TYPE_HW_COMPONENT = 2,
153  };
154  
155  /*
156   * Host <-> VPU IPC messages types.
157   */
158  enum vpu_ipc_msg_type {
159  	VPU_JSM_MSG_UNKNOWN = 0xFFFFFFFF,
160  	/* IPC Host -> Device, Async commands */
161  	VPU_JSM_MSG_ASYNC_CMD = 0x1100,
162  	VPU_JSM_MSG_ENGINE_RESET = VPU_JSM_MSG_ASYNC_CMD,
163  	VPU_JSM_MSG_ENGINE_PREEMPT = 0x1101,
164  	VPU_JSM_MSG_REGISTER_DB = 0x1102,
165  	VPU_JSM_MSG_UNREGISTER_DB = 0x1103,
166  	VPU_JSM_MSG_QUERY_ENGINE_HB = 0x1104,
167  	VPU_JSM_MSG_GET_POWER_LEVEL_COUNT = 0x1105,
168  	VPU_JSM_MSG_GET_POWER_LEVEL = 0x1106,
169  	VPU_JSM_MSG_SET_POWER_LEVEL = 0x1107,
170  	/* @deprecated */
171  	VPU_JSM_MSG_METRIC_STREAMER_OPEN = 0x1108,
172  	/* @deprecated */
173  	VPU_JSM_MSG_METRIC_STREAMER_CLOSE = 0x1109,
174  	/** Configure logging (used to modify configuration passed in boot params). */
175  	VPU_JSM_MSG_TRACE_SET_CONFIG = 0x110a,
176  	/** Return current logging configuration. */
177  	VPU_JSM_MSG_TRACE_GET_CONFIG = 0x110b,
178  	/**
179  	 * Get masks of destinations and HW components supported by the firmware
180  	 * (may vary between HW generations and FW compile
181  	 * time configurations)
182  	 */
183  	VPU_JSM_MSG_TRACE_GET_CAPABILITY = 0x110c,
184  	/** Get the name of a destination or HW component. */
185  	VPU_JSM_MSG_TRACE_GET_NAME = 0x110d,
186  	/**
187  	 * Release resource associated with host ssid . All jobs that belong to the host_ssid
188  	 * aborted and removed from internal scheduling queues. All doorbells assigned
189  	 * to the host_ssid are unregistered and any internal FW resources belonging to
190  	 * the host_ssid are released.
191  	 */
192  	VPU_JSM_MSG_SSID_RELEASE = 0x110e,
193  	/**
194  	 * Start collecting metric data.
195  	 * @see vpu_jsm_metric_streamer_start
196  	 */
197  	VPU_JSM_MSG_METRIC_STREAMER_START = 0x110f,
198  	/**
199  	 * Stop collecting metric data. This command will return success if it is called
200  	 * for a metric stream that has already been stopped or was never started.
201  	 * @see vpu_jsm_metric_streamer_stop
202  	 */
203  	VPU_JSM_MSG_METRIC_STREAMER_STOP = 0x1110,
204  	/**
205  	 * Update current and next buffer for metric data collection. This command can
206  	 * also be used to request information about the number of collected samples
207  	 * and the amount of data written to the buffer.
208  	 * @see vpu_jsm_metric_streamer_update
209  	 */
210  	VPU_JSM_MSG_METRIC_STREAMER_UPDATE = 0x1111,
211  	/**
212  	 * Request description of selected metric groups and metric counters within
213  	 * each group. The VPU will write the description of groups and counters to
214  	 * the buffer specified in the command structure.
215  	 * @see vpu_jsm_metric_streamer_start
216  	 */
217  	VPU_JSM_MSG_METRIC_STREAMER_INFO = 0x1112,
218  	/** Control command: Priority band setup */
219  	VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP = 0x1113,
220  	/** Control command: Create command queue */
221  	VPU_JSM_MSG_CREATE_CMD_QUEUE = 0x1114,
222  	/** Control command: Destroy command queue */
223  	VPU_JSM_MSG_DESTROY_CMD_QUEUE = 0x1115,
224  	/** Control command: Set context scheduling properties */
225  	VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES = 0x1116,
226  	/*
227  	 * Register a doorbell to notify VPU of new work. The doorbell may later be
228  	 * deallocated or reassigned to another context.
229  	 */
230  	VPU_JSM_MSG_HWS_REGISTER_DB = 0x1117,
231  	/* IPC Host -> Device, General commands */
232  	VPU_JSM_MSG_GENERAL_CMD = 0x1200,
233  	VPU_JSM_MSG_BLOB_DEINIT = VPU_JSM_MSG_GENERAL_CMD,
234  	/**
235  	 * Control dyndbg behavior by executing a dyndbg command; equivalent to
236  	 * Linux command: `echo '<dyndbg_cmd>' > <debugfs>/dynamic_debug/control`.
237  	 */
238  	VPU_JSM_MSG_DYNDBG_CONTROL = 0x1201,
239  	/* IPC Device -> Host, Job completion */
240  	VPU_JSM_MSG_JOB_DONE = 0x2100,
241  	/* IPC Device -> Host, Async command completion */
242  	VPU_JSM_MSG_ASYNC_CMD_DONE = 0x2200,
243  	VPU_JSM_MSG_ENGINE_RESET_DONE = VPU_JSM_MSG_ASYNC_CMD_DONE,
244  	VPU_JSM_MSG_ENGINE_PREEMPT_DONE = 0x2201,
245  	VPU_JSM_MSG_REGISTER_DB_DONE = 0x2202,
246  	VPU_JSM_MSG_UNREGISTER_DB_DONE = 0x2203,
247  	VPU_JSM_MSG_QUERY_ENGINE_HB_DONE = 0x2204,
248  	VPU_JSM_MSG_GET_POWER_LEVEL_COUNT_DONE = 0x2205,
249  	VPU_JSM_MSG_GET_POWER_LEVEL_DONE = 0x2206,
250  	VPU_JSM_MSG_SET_POWER_LEVEL_DONE = 0x2207,
251  	/* @deprecated */
252  	VPU_JSM_MSG_METRIC_STREAMER_OPEN_DONE = 0x2208,
253  	/* @deprecated */
254  	VPU_JSM_MSG_METRIC_STREAMER_CLOSE_DONE = 0x2209,
255  	/** Response to VPU_JSM_MSG_TRACE_SET_CONFIG. */
256  	VPU_JSM_MSG_TRACE_SET_CONFIG_RSP = 0x220a,
257  	/** Response to VPU_JSM_MSG_TRACE_GET_CONFIG. */
258  	VPU_JSM_MSG_TRACE_GET_CONFIG_RSP = 0x220b,
259  	/** Response to VPU_JSM_MSG_TRACE_GET_CAPABILITY. */
260  	VPU_JSM_MSG_TRACE_GET_CAPABILITY_RSP = 0x220c,
261  	/** Response to VPU_JSM_MSG_TRACE_GET_NAME. */
262  	VPU_JSM_MSG_TRACE_GET_NAME_RSP = 0x220d,
263  	/** Response to VPU_JSM_MSG_SSID_RELEASE. */
264  	VPU_JSM_MSG_SSID_RELEASE_DONE = 0x220e,
265  	/**
266  	 * Response to VPU_JSM_MSG_METRIC_STREAMER_START.
267  	 * VPU will return an error result if metric collection cannot be started,
268  	 * e.g. when the specified metric mask is invalid.
269  	 * @see vpu_jsm_metric_streamer_done
270  	 */
271  	VPU_JSM_MSG_METRIC_STREAMER_START_DONE = 0x220f,
272  	/**
273  	 * Response to VPU_JSM_MSG_METRIC_STREAMER_STOP.
274  	 * Returns information about collected metric data.
275  	 * @see vpu_jsm_metric_streamer_done
276  	 */
277  	VPU_JSM_MSG_METRIC_STREAMER_STOP_DONE = 0x2210,
278  	/**
279  	 * Response to VPU_JSM_MSG_METRIC_STREAMER_UPDATE.
280  	 * Returns information about collected metric data.
281  	 * @see vpu_jsm_metric_streamer_done
282  	 */
283  	VPU_JSM_MSG_METRIC_STREAMER_UPDATE_DONE = 0x2211,
284  	/**
285  	 * Response to VPU_JSM_MSG_METRIC_STREAMER_INFO.
286  	 * Returns a description of the metric groups and metric counters.
287  	 * @see vpu_jsm_metric_streamer_done
288  	 */
289  	VPU_JSM_MSG_METRIC_STREAMER_INFO_DONE = 0x2212,
290  	/**
291  	 * Asynchronous event sent from the VPU to the host either when the current
292  	 * metric buffer is full or when the VPU has collected a multiple of
293  	 * @notify_sample_count samples as indicated through the start command
294  	 * (VPU_JSM_MSG_METRIC_STREAMER_START). Returns information about collected
295  	 * metric data.
296  	 * @see vpu_jsm_metric_streamer_done
297  	 */
298  	VPU_JSM_MSG_METRIC_STREAMER_NOTIFICATION = 0x2213,
299  	/** Response to control command: Priority band setup */
300  	VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP_RSP = 0x2214,
301  	/** Response to control command: Create command queue */
302  	VPU_JSM_MSG_CREATE_CMD_QUEUE_RSP = 0x2215,
303  	/** Response to control command: Destroy command queue */
304  	VPU_JSM_MSG_DESTROY_CMD_QUEUE_RSP = 0x2216,
305  	/** Response to control command: Set context scheduling properties */
306  	VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES_RSP = 0x2217,
307  	/* IPC Device -> Host, General command completion */
308  	VPU_JSM_MSG_GENERAL_CMD_DONE = 0x2300,
309  	VPU_JSM_MSG_BLOB_DEINIT_DONE = VPU_JSM_MSG_GENERAL_CMD_DONE,
310  	/** Response to VPU_JSM_MSG_DYNDBG_CONTROL. */
311  	VPU_JSM_MSG_DYNDBG_CONTROL_RSP = 0x2301,
312  };
313  
314  enum vpu_ipc_msg_status { VPU_JSM_MSG_FREE, VPU_JSM_MSG_ALLOCATED };
315  
316  /*
317   * Host <-> LRT IPC message payload definitions
318   */
319  struct vpu_ipc_msg_payload_engine_reset {
320  	/* Engine to be reset. */
321  	u32 engine_idx;
322  	/* Reserved */
323  	u32 reserved_0;
324  };
325  
326  struct vpu_ipc_msg_payload_engine_preempt {
327  	/* Engine to be preempted. */
328  	u32 engine_idx;
329  	/* ID of the preemption request. */
330  	u32 preempt_id;
331  };
332  
333  /*
334   * @brief Register doorbell command structure.
335   * This structure supports doorbell registration for only OS scheduling.
336   * @see VPU_JSM_MSG_REGISTER_DB
337   */
338  struct vpu_ipc_msg_payload_register_db {
339  	/* Index of the doorbell to register. */
340  	u32 db_idx;
341  	/* Reserved */
342  	u32 reserved_0;
343  	/* Virtual address in Global GTT pointing to the start of job queue. */
344  	u64 jobq_base;
345  	/* Size of the job queue in bytes. */
346  	u32 jobq_size;
347  	/* Host sub-stream ID for the context assigned to the doorbell. */
348  	u32 host_ssid;
349  };
350  
351  /**
352   * @brief Unregister doorbell command structure.
353   * Request structure to unregister a doorbell for both HW and OS scheduling.
354   * @see VPU_JSM_MSG_UNREGISTER_DB
355   */
356  struct vpu_ipc_msg_payload_unregister_db {
357  	/* Index of the doorbell to unregister. */
358  	u32 db_idx;
359  	/* Reserved */
360  	u32 reserved_0;
361  };
362  
363  struct vpu_ipc_msg_payload_query_engine_hb {
364  	/* Engine to return heartbeat value. */
365  	u32 engine_idx;
366  	/* Reserved */
367  	u32 reserved_0;
368  };
369  
370  struct vpu_ipc_msg_payload_power_level {
371  	/**
372  	 * Requested power level. The power level value is in the
373  	 * range [0, power_level_count-1] where power_level_count
374  	 * is the number of available power levels as returned by
375  	 * the get power level count command. A power level of 0
376  	 * corresponds to the maximum possible power level, while
377  	 * power_level_count-1 corresponds to the minimum possible
378  	 * power level. Values outside of this range are not
379  	 * considered to be valid.
380  	 */
381  	u32 power_level;
382  	/* Reserved */
383  	u32 reserved_0;
384  };
385  
386  struct vpu_ipc_msg_payload_ssid_release {
387  	/* Host sub-stream ID for the context to be released. */
388  	u32 host_ssid;
389  	/* Reserved */
390  	u32 reserved_0;
391  };
392  
393  /**
394   * @brief Metric streamer start command structure.
395   * This structure is also used with VPU_JSM_MSG_METRIC_STREAMER_INFO to request metric
396   * groups and metric counters description from the firmware.
397   * @see VPU_JSM_MSG_METRIC_STREAMER_START
398   * @see VPU_JSM_MSG_METRIC_STREAMER_INFO
399   */
400  struct vpu_jsm_metric_streamer_start {
401  	/**
402  	 * Bitmask to select the desired metric groups.
403  	 * A metric group can belong only to one metric streamer instance at a time.
404  	 * Since each metric streamer instance has a unique set of metric groups, it
405  	 * can also identify a metric streamer instance if more than one instance was
406  	 * started. If the VPU device does not support multiple metric streamer instances,
407  	 * then VPU_JSM_MSG_METRIC_STREAMER_START will return an error even if the second
408  	 * instance has different groups to the first.
409  	 */
410  	u64 metric_group_mask;
411  	/** Sampling rate in nanoseconds. */
412  	u64 sampling_rate;
413  	/**
414  	 * If > 0 the VPU will send a VPU_JSM_MSG_METRIC_STREAMER_NOTIFICATION message
415  	 * after every @notify_sample_count samples is collected or dropped by the VPU.
416  	 * If set to UINT_MAX the VPU will only generate a notification when the metric
417  	 * buffer is full. If set to 0 the VPU will never generate a notification.
418  	 */
419  	u32 notify_sample_count;
420  	u32 reserved_0;
421  	/**
422  	 * Address and size of the buffer where the VPU will write metric data. The
423  	 * VPU writes all counters from enabled metric groups one after another. If
424  	 * there is no space left to write data at the next sample period the VPU
425  	 * will switch to the next buffer (@see next_buffer_addr) and will optionally
426  	 * send a notification to the host driver if @notify_sample_count is non-zero.
427  	 * If @next_buffer_addr is NULL the VPU will stop collecting metric data.
428  	 */
429  	u64 buffer_addr;
430  	u64 buffer_size;
431  	/**
432  	 * Address and size of the next buffer to write metric data to after the initial
433  	 * buffer is full. If the address is NULL the VPU will stop collecting metric
434  	 * data.
435  	 */
436  	u64 next_buffer_addr;
437  	u64 next_buffer_size;
438  };
439  
440  /**
441   * @brief Metric streamer stop command structure.
442   * @see VPU_JSM_MSG_METRIC_STREAMER_STOP
443   */
444  struct vpu_jsm_metric_streamer_stop {
445  	/** Bitmask to select the desired metric groups. */
446  	u64 metric_group_mask;
447  };
448  
449  /**
450   * Provide VPU FW with buffers to write metric data.
451   * @see VPU_JSM_MSG_METRIC_STREAMER_UPDATE
452   */
453  struct vpu_jsm_metric_streamer_update {
454  	/** Metric group mask that identifies metric streamer instance. */
455  	u64 metric_group_mask;
456  	/**
457  	 * Address and size of the buffer where the VPU will write metric data. If
458  	 * the buffer address is 0 or same as the currently used buffer the VPU will
459  	 * continue writing metric data to the current buffer. In this case the
460  	 * buffer size is ignored and the size of the current buffer is unchanged.
461  	 * If the address is non-zero and differs from the current buffer address the
462  	 * VPU will immediately switch data collection to the new buffer.
463  	 */
464  	u64 buffer_addr;
465  	u64 buffer_size;
466  	/**
467  	 * Address and size of the next buffer to write metric data after the initial
468  	 * buffer is full. If the address is NULL the VPU will stop collecting metric
469  	 * data but will continue to record dropped samples.
470  	 *
471  	 * Note that there is a hazard possible if both buffer_addr and the next_buffer_addr
472  	 * are non-zero in same update request. It is the host's responsibility to ensure
473  	 * that both addresses make sense even if the VPU just switched to writing samples
474  	 * from the current to the next buffer.
475  	 */
476  	u64 next_buffer_addr;
477  	u64 next_buffer_size;
478  };
479  
480  struct vpu_ipc_msg_payload_blob_deinit {
481  	/* 64-bit unique ID for the blob to be de-initialized. */
482  	u64 blob_id;
483  };
484  
485  struct vpu_ipc_msg_payload_job_done {
486  	/* Engine to which the job was submitted. */
487  	u32 engine_idx;
488  	/* Index of the doorbell to which the job was submitted */
489  	u32 db_idx;
490  	/* ID of the completed job */
491  	u32 job_id;
492  	/* Status of the completed job */
493  	u32 job_status;
494  	/* Host SSID */
495  	u32 host_ssid;
496  	/* Zero Padding */
497  	u32 reserved_0;
498  	/* Command queue id */
499  	u64 cmdq_id;
500  };
501  
502  struct vpu_jsm_engine_reset_context {
503  	/* Host SSID */
504  	u32 host_ssid;
505  	/* Zero Padding */
506  	u32 reserved_0;
507  	/* Command queue id */
508  	u64 cmdq_id;
509  	/* Flags: 0: cause of hang; 1: collateral damage of reset */
510  	u64 flags;
511  };
512  
513  struct vpu_ipc_msg_payload_engine_reset_done {
514  	/* Engine ordinal */
515  	u32 engine_idx;
516  	/* Number of impacted contexts */
517  	u32 num_impacted_contexts;
518  	/* Array of impacted command queue ids and their flags */
519  	struct vpu_jsm_engine_reset_context
520  		impacted_contexts[VPU_MAX_ENGINE_RESET_IMPACTED_CONTEXTS];
521  };
522  
523  struct vpu_ipc_msg_payload_engine_preempt_done {
524  	/* Engine preempted. */
525  	u32 engine_idx;
526  	/* ID of the preemption request. */
527  	u32 preempt_id;
528  };
529  
530  /**
531   * Response structure for register doorbell command for both OS
532   * and HW scheduling.
533   * @see VPU_JSM_MSG_REGISTER_DB
534   * @see VPU_JSM_MSG_HWS_REGISTER_DB
535   */
536  struct vpu_ipc_msg_payload_register_db_done {
537  	/* Index of the registered doorbell. */
538  	u32 db_idx;
539  	/* Reserved */
540  	u32 reserved_0;
541  };
542  
543  /**
544   * Response structure for unregister doorbell command for both OS
545   * and HW scheduling.
546   * @see VPU_JSM_MSG_UNREGISTER_DB
547   */
548  struct vpu_ipc_msg_payload_unregister_db_done {
549  	/* Index of the unregistered doorbell. */
550  	u32 db_idx;
551  	/* Reserved */
552  	u32 reserved_0;
553  };
554  
555  struct vpu_ipc_msg_payload_query_engine_hb_done {
556  	/* Engine returning heartbeat value. */
557  	u32 engine_idx;
558  	/* Reserved */
559  	u32 reserved_0;
560  	/* Heartbeat value. */
561  	u64 heartbeat;
562  };
563  
564  struct vpu_ipc_msg_payload_get_power_level_count_done {
565  	/**
566  	 * Number of supported power levels. The maximum possible
567  	 * value of power_level_count is 16 but this may vary across
568  	 * implementations.
569  	 */
570  	u32 power_level_count;
571  	/* Reserved */
572  	u32 reserved_0;
573  	/**
574  	 * Power consumption limit for each supported power level in
575  	 * [0-100%] range relative to power level 0.
576  	 */
577  	u8 power_limit[16];
578  };
579  
580  struct vpu_ipc_msg_payload_blob_deinit_done {
581  	/* 64-bit unique ID for the blob de-initialized. */
582  	u64 blob_id;
583  };
584  
585  /* HWS priority band setup request / response */
586  struct vpu_ipc_msg_payload_hws_priority_band_setup {
587  	/*
588  	 * Grace period in 100ns units when preempting another priority band for
589  	 * this priority band
590  	 */
591  	u32 grace_period[VPU_HWS_NUM_PRIORITY_BANDS];
592  	/*
593  	 * Default quantum in 100ns units for scheduling across processes
594  	 * within a priority band
595  	 */
596  	u64 process_quantum[VPU_HWS_NUM_PRIORITY_BANDS];
597  	/*
598  	 * Default grace period in 100ns units for processes that preempt each
599  	 * other within a priority band
600  	 */
601  	u64 process_grace_period[VPU_HWS_NUM_PRIORITY_BANDS];
602  	/*
603  	 * For normal priority band, specifies the target VPU percentage
604  	 * in situations when it's starved by the focus band.
605  	 */
606  	u32 normal_band_percentage;
607  	/* Reserved */
608  	u32 reserved_0;
609  };
610  
611  /* HWS create command queue request */
612  struct vpu_ipc_msg_payload_hws_create_cmdq {
613  	/* Process id */
614  	u64 process_id;
615  	/* Host SSID */
616  	u32 host_ssid;
617  	/* Zero Padding */
618  	u32 reserved;
619  	/* Command queue id */
620  	u64 cmdq_id;
621  	/* Command queue base */
622  	u64 cmdq_base;
623  	/* Command queue size */
624  	u32 cmdq_size;
625  	/* Reserved */
626  	u32 reserved_0;
627  };
628  
629  /* HWS create command queue response */
630  struct vpu_ipc_msg_payload_hws_create_cmdq_rsp {
631  	/* Process id */
632  	u64 process_id;
633  	/* Host SSID */
634  	u32 host_ssid;
635  	/* Zero Padding */
636  	u32 reserved;
637  	/* Command queue id */
638  	u64 cmdq_id;
639  };
640  
641  /* HWS destroy command queue request / response */
642  struct vpu_ipc_msg_payload_hws_destroy_cmdq {
643  	/* Host SSID */
644  	u32 host_ssid;
645  	/* Zero Padding */
646  	u32 reserved;
647  	/* Command queue id */
648  	u64 cmdq_id;
649  };
650  
651  /* HWS set context scheduling properties request / response */
652  struct vpu_ipc_msg_payload_hws_set_context_sched_properties {
653  	/* Host SSID */
654  	u32 host_ssid;
655  	/* Zero Padding */
656  	u32 reserved_0;
657  	/* Command queue id */
658  	u64 cmdq_id;
659  	/* Priority band to assign to work of this context */
660  	u32 priority_band;
661  	/* Inside realtime band assigns a further priority */
662  	u32 realtime_priority_level;
663  	/* Priority relative to other contexts in the same process */
664  	u32 in_process_priority;
665  	/* Zero padding / Reserved */
666  	u32 reserved_1;
667  	/* Context quantum relative to other contexts of same priority in the same process */
668  	u64 context_quantum;
669  	/* Grace period when preempting context of the same priority within the same process */
670  	u64 grace_period_same_priority;
671  	/* Grace period when preempting context of a lower priority within the same process */
672  	u64 grace_period_lower_priority;
673  };
674  
675  /*
676   * @brief Register doorbell command structure.
677   * This structure supports doorbell registration for both HW and OS scheduling.
678   * Note: Queue base and size are added here so that the same structure can be used for
679   * OS scheduling and HW scheduling. For OS scheduling, cmdq_id will be ignored
680   * and cmdq_base and cmdq_size will be used. For HW scheduling, cmdq_base and cmdq_size will be
681   * ignored and cmdq_id is used.
682   * @see VPU_JSM_MSG_HWS_REGISTER_DB
683   */
684  struct vpu_jsm_hws_register_db {
685  	/* Index of the doorbell to register. */
686  	u32 db_id;
687  	/* Host sub-stream ID for the context assigned to the doorbell. */
688  	u32 host_ssid;
689  	/* ID of the command queue associated with the doorbell. */
690  	u64 cmdq_id;
691  	/* Virtual address pointing to the start of command queue. */
692  	u64 cmdq_base;
693  	/* Size of the command queue in bytes. */
694  	u64 cmdq_size;
695  };
696  
697  /**
698   * Payload for VPU_JSM_MSG_TRACE_SET_CONFIG[_RSP] and
699   * VPU_JSM_MSG_TRACE_GET_CONFIG_RSP messages.
700   *
701   * The payload is interpreted differently depending on the type of message:
702   *
703   * - For VPU_JSM_MSG_TRACE_SET_CONFIG, the payload specifies the desired
704   *   logging configuration to be set.
705   *
706   * - For VPU_JSM_MSG_TRACE_SET_CONFIG_RSP, the payload reports the logging
707   *   configuration that was set after a VPU_JSM_MSG_TRACE_SET_CONFIG request.
708   *   The host can compare this payload with the one it sent in the
709   *   VPU_JSM_MSG_TRACE_SET_CONFIG request to check whether or not the
710   *   configuration was set as desired.
711   *
712   * - VPU_JSM_MSG_TRACE_GET_CONFIG_RSP, the payload reports the current logging
713   *   configuration.
714   */
715  struct vpu_ipc_msg_payload_trace_config {
716  	/**
717  	 * Logging level (currently set or to be set); see 'mvLog_t' enum for
718  	 * acceptable values. The specified logging level applies to all
719  	 * destinations and HW components
720  	 */
721  	u32 trace_level;
722  	/**
723  	 * Bitmask of logging destinations (currently enabled or to be enabled);
724  	 * bitwise OR of values defined in logging_destination enum.
725  	 */
726  	u32 trace_destination_mask;
727  	/**
728  	 * Bitmask of loggable HW components (currently enabled or to be enabled);
729  	 * bitwise OR of values defined in loggable_hw_component enum.
730  	 */
731  	u64 trace_hw_component_mask;
732  	u64 reserved_0; /**< Reserved for future extensions. */
733  };
734  
735  /**
736   * Payload for VPU_JSM_MSG_TRACE_GET_CAPABILITY_RSP messages.
737   */
738  struct vpu_ipc_msg_payload_trace_capability_rsp {
739  	u32 trace_destination_mask; /**< Bitmask of supported logging destinations. */
740  	u32 reserved_0;
741  	u64 trace_hw_component_mask; /**< Bitmask of supported loggable HW components. */
742  	u64 reserved_1; /**< Reserved for future extensions. */
743  };
744  
745  /**
746   * Payload for VPU_JSM_MSG_TRACE_GET_NAME requests.
747   */
748  struct vpu_ipc_msg_payload_trace_get_name {
749  	/**
750  	 * The type of the entity to query name for; see logging_entity_type for
751  	 * possible values.
752  	 */
753  	u32 entity_type;
754  	u32 reserved_0;
755  	/**
756  	 * The ID of the entity to query name for; possible values depends on the
757  	 * entity type.
758  	 */
759  	u64 entity_id;
760  };
761  
762  /**
763   * Payload for VPU_JSM_MSG_TRACE_GET_NAME_RSP responses.
764   */
765  struct vpu_ipc_msg_payload_trace_get_name_rsp {
766  	/**
767  	 * The type of the entity whose name was queried; see logging_entity_type
768  	 * for possible values.
769  	 */
770  	u32 entity_type;
771  	u32 reserved_0;
772  	/**
773  	 * The ID of the entity whose name was queried; possible values depends on
774  	 * the entity type.
775  	 */
776  	u64 entity_id;
777  	/** Reserved for future extensions. */
778  	u64 reserved_1;
779  	/** The name of the entity. */
780  	char entity_name[VPU_TRACE_ENTITY_NAME_MAX_LEN];
781  };
782  
783  /**
784   * Data sent from the VPU to the host in all metric streamer response messages
785   * and in asynchronous notification.
786   * @see VPU_JSM_MSG_METRIC_STREAMER_START_DONE
787   * @see VPU_JSM_MSG_METRIC_STREAMER_STOP_DONE
788   * @see VPU_JSM_MSG_METRIC_STREAMER_UPDATE_DONE
789   * @see VPU_JSM_MSG_METRIC_STREAMER_INFO_DONE
790   * @see VPU_JSM_MSG_METRIC_STREAMER_NOTIFICATION
791   */
792  struct vpu_jsm_metric_streamer_done {
793  	/** Metric group mask that identifies metric streamer instance. */
794  	u64 metric_group_mask;
795  	/**
796  	 * Size in bytes of single sample - total size of all enabled counters.
797  	 * Some VPU implementations may align sample_size to more than 8 bytes.
798  	 */
799  	u32 sample_size;
800  	u32 reserved_0;
801  	/**
802  	 * Number of samples collected since the metric streamer was started.
803  	 * This will be 0 if the metric streamer was not started.
804  	 */
805  	u32 samples_collected;
806  	/**
807  	 * Number of samples dropped since the metric streamer was started. This
808  	 * is incremented every time the metric streamer is not able to write
809  	 * collected samples because the current buffer is full and there is no
810  	 * next buffer to switch to.
811  	 */
812  	u32 samples_dropped;
813  	/** Address of the buffer that contains the latest metric data. */
814  	u64 buffer_addr;
815  	/**
816  	 * Number of bytes written into the metric data buffer. In response to the
817  	 * VPU_JSM_MSG_METRIC_STREAMER_INFO request this field contains the size of
818  	 * all group and counter descriptors. The size is updated even if the buffer
819  	 * in the request was NULL or too small to hold descriptors of all counters
820  	 */
821  	u64 bytes_written;
822  };
823  
824  /**
825   * Metric group description placed in the metric buffer after successful completion
826   * of the VPU_JSM_MSG_METRIC_STREAMER_INFO command. This is followed by one or more
827   * @vpu_jsm_metric_counter_descriptor records.
828   * @see VPU_JSM_MSG_METRIC_STREAMER_INFO
829   */
830  struct vpu_jsm_metric_group_descriptor {
831  	/**
832  	 * Offset to the next metric group (8-byte aligned). If this offset is 0 this
833  	 * is the last descriptor. The value of metric_info_size must be greater than
834  	 * or equal to sizeof(struct vpu_jsm_metric_group_descriptor) + name_string_size
835  	 * + description_string_size and must be 8-byte aligned.
836  	 */
837  	u32 next_metric_group_info_offset;
838  	/**
839  	 * Offset to the first metric counter description record (8-byte aligned).
840  	 * @see vpu_jsm_metric_counter_descriptor
841  	 */
842  	u32 next_metric_counter_info_offset;
843  	/** Index of the group. This corresponds to bit index in metric_group_mask. */
844  	u32 group_id;
845  	/** Number of counters in the metric group. */
846  	u32 num_counters;
847  	/** Data size for all counters, must be a multiple of 8 bytes.*/
848  	u32 metric_group_data_size;
849  	/**
850  	 * Metric group domain number. Cannot use multiple, simultaneous metric groups
851  	 * from the same domain.
852  	 */
853  	u32 domain;
854  	/**
855  	 * Counter name string size. The string must include a null termination character.
856  	 * The FW may use a fixed size name or send a different name for each counter.
857  	 * If the VPU uses fixed size strings, all characters from the end of the name
858  	 * to the of the fixed size character array must be zeroed.
859  	 */
860  	u32 name_string_size;
861  	/** Counter description string size, @see name_string_size */
862  	u32 description_string_size;
863  	u64 reserved_0;
864  	/**
865  	 * Right after this structure, the VPU writes name and description of
866  	 * the metric group.
867  	 */
868  };
869  
870  /**
871   * Metric counter description, placed in the buffer after vpu_jsm_metric_group_descriptor.
872   * @see VPU_JSM_MSG_METRIC_STREAMER_INFO
873   */
874  struct vpu_jsm_metric_counter_descriptor {
875  	/**
876  	 * Offset to the next counter in a group (8-byte aligned). If this offset is
877  	 * 0 this is the last counter in the group.
878  	 */
879  	u32 next_metric_counter_info_offset;
880  	/**
881  	 * Offset to the counter data from the start of samples in this metric group.
882  	 * Note that metric_data_offset % metric_data_size must be 0.
883  	 */
884  	u32 metric_data_offset;
885  	/** Size of the metric counter data in bytes. */
886  	u32 metric_data_size;
887  	/** Metric type, see Level Zero API for definitions. */
888  	u32 tier;
889  	/** Metric type, see set_metric_type_t for definitions. */
890  	u32 metric_type;
891  	/** Metric type, see set_value_type_t for definitions. */
892  	u32 metric_value_type;
893  	/**
894  	 * Counter name string size. The string must include a null termination character.
895  	 * The FW may use a fixed size name or send a different name for each counter.
896  	 * If the VPU uses fixed size strings, all characters from the end of the name
897  	 * to the of the fixed size character array must be zeroed.
898  	 */
899  	u32 name_string_size;
900  	/** Counter description string size, @see name_string_size */
901  	u32 description_string_size;
902  	/** Counter component name string size, @see name_string_size */
903  	u32 component_string_size;
904  	/** Counter string size, @see name_string_size */
905  	u32 units_string_size;
906  	u64 reserved_0;
907  	/**
908  	 * Right after this structure, the VPU writes name, description
909  	 * component and unit strings.
910  	 */
911  };
912  
913  /**
914   * Payload for VPU_JSM_MSG_DYNDBG_CONTROL requests.
915   *
916   * VPU_JSM_MSG_DYNDBG_CONTROL are used to control the VPU FW Dynamic Debug
917   * feature, which allows developers to selectively enable / disable MVLOG_DEBUG
918   * messages. This is equivalent to the Dynamic Debug functionality provided by
919   * Linux
920   * (https://www.kernel.org/doc/html/latest/admin-guide/dynamic-debug-howto.html)
921   * The host can control Dynamic Debug behavior by sending dyndbg commands, which
922   * have the same syntax as Linux
923   * dyndbg commands.
924   *
925   * NOTE: in order for MVLOG_DEBUG messages to be actually printed, the host
926   * still has to set the logging level to MVLOG_DEBUG, using the
927   * VPU_JSM_MSG_TRACE_SET_CONFIG command.
928   *
929   * The host can see the current dynamic debug configuration by executing a
930   * special 'show' command. The dyndbg configuration will be printed to the
931   * configured logging destination using MVLOG_INFO logging level.
932   */
933  struct vpu_ipc_msg_payload_dyndbg_control {
934  	/**
935  	 * Dyndbg command (same format as Linux dyndbg); must be a NULL-terminated
936  	 * string.
937  	 */
938  	char dyndbg_cmd[VPU_DYNDBG_CMD_MAX_LEN];
939  };
940  
941  /*
942   * Payloads union, used to define complete message format.
943   */
944  union vpu_ipc_msg_payload {
945  	struct vpu_ipc_msg_payload_engine_reset engine_reset;
946  	struct vpu_ipc_msg_payload_engine_preempt engine_preempt;
947  	struct vpu_ipc_msg_payload_register_db register_db;
948  	struct vpu_ipc_msg_payload_unregister_db unregister_db;
949  	struct vpu_ipc_msg_payload_query_engine_hb query_engine_hb;
950  	struct vpu_ipc_msg_payload_power_level power_level;
951  	struct vpu_jsm_metric_streamer_start metric_streamer_start;
952  	struct vpu_jsm_metric_streamer_stop metric_streamer_stop;
953  	struct vpu_jsm_metric_streamer_update metric_streamer_update;
954  	struct vpu_ipc_msg_payload_blob_deinit blob_deinit;
955  	struct vpu_ipc_msg_payload_ssid_release ssid_release;
956  	struct vpu_jsm_hws_register_db hws_register_db;
957  	struct vpu_ipc_msg_payload_job_done job_done;
958  	struct vpu_ipc_msg_payload_engine_reset_done engine_reset_done;
959  	struct vpu_ipc_msg_payload_engine_preempt_done engine_preempt_done;
960  	struct vpu_ipc_msg_payload_register_db_done register_db_done;
961  	struct vpu_ipc_msg_payload_unregister_db_done unregister_db_done;
962  	struct vpu_ipc_msg_payload_query_engine_hb_done query_engine_hb_done;
963  	struct vpu_ipc_msg_payload_get_power_level_count_done get_power_level_count_done;
964  	struct vpu_jsm_metric_streamer_done metric_streamer_done;
965  	struct vpu_ipc_msg_payload_blob_deinit_done blob_deinit_done;
966  	struct vpu_ipc_msg_payload_trace_config trace_config;
967  	struct vpu_ipc_msg_payload_trace_capability_rsp trace_capability;
968  	struct vpu_ipc_msg_payload_trace_get_name trace_get_name;
969  	struct vpu_ipc_msg_payload_trace_get_name_rsp trace_get_name_rsp;
970  	struct vpu_ipc_msg_payload_dyndbg_control dyndbg_control;
971  	struct vpu_ipc_msg_payload_hws_priority_band_setup hws_priority_band_setup;
972  	struct vpu_ipc_msg_payload_hws_create_cmdq hws_create_cmdq;
973  	struct vpu_ipc_msg_payload_hws_create_cmdq_rsp hws_create_cmdq_rsp;
974  	struct vpu_ipc_msg_payload_hws_destroy_cmdq hws_destroy_cmdq;
975  	struct vpu_ipc_msg_payload_hws_set_context_sched_properties
976  		hws_set_context_sched_properties;
977  };
978  
979  /*
980   * Host <-> LRT IPC message base structure.
981   *
982   * NOTE: All instances of this object must be aligned on a 64B boundary
983   * to allow proper handling of VPU cache operations.
984   */
985  struct vpu_jsm_msg {
986  	/* Reserved */
987  	u64 reserved_0;
988  	/* Message type, see vpu_ipc_msg_type enum. */
989  	u32 type;
990  	/* Buffer status, see vpu_ipc_msg_status enum. */
991  	u32 status;
992  	/*
993  	 * Request ID, provided by the host in a request message and passed
994  	 * back by VPU in the response message.
995  	 */
996  	u32 request_id;
997  	/* Request return code set by the VPU, see VPU_JSM_STATUS_* defines. */
998  	u32 result;
999  	u64 reserved_1;
1000  	/* Message payload depending on message type, see vpu_ipc_msg_payload union. */
1001  	union vpu_ipc_msg_payload payload;
1002  };
1003  
1004  #pragma pack(pop)
1005  
1006  #endif
1007  
1008  ///@}
1009