Merge tag 'trace-printf-v6.13' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...

[drm/drm-misc.git] / drivers / accel / ivpu / vpu_jsm_api.h

/* SPDX-License-Identifier: MIT */
/*
 * Copyright (c) 2020-2024, Intel Corporation.
 */

/**
 * @file
 * @brief JSM shared definitions
 *
 * @ingroup Jsm
 * @brief JSM shared definitions
 * @{
 */
#ifndef VPU_JSM_API_H
#define VPU_JSM_API_H

/*
 * Major version changes that break backward compatibility
 */
#define VPU_JSM_API_VER_MAJOR 3

/*
 * Minor version changes when API backward compatibility is preserved.
 */
#define VPU_JSM_API_VER_MINOR 25

/*
 * API header changed (field names, documentation, formatting) but API itself has not been changed
 */
#define VPU_JSM_API_VER_PATCH 0

/*
 * Index in the API version table
 */
#define VPU_JSM_API_VER_INDEX 4

/*
 * Number of Priority Bands for Hardware Scheduling
 * Bands: Idle(0), Normal(1), Focus(2), RealTime(3)
 */
#define VPU_HWS_NUM_PRIORITY_BANDS 4

/* Max number of impacted contexts that can be dealt with the engine reset command */
#define VPU_MAX_ENGINE_RESET_IMPACTED_CONTEXTS 3

/*
 * Pack the API structures to enforce binary compatibility
 * Align to 8 bytes for optimal performance
 */
#pragma pack(push, 8)

/*
 * Engine indexes.
 */
#define VPU_ENGINE_COMPUTE 0
#define VPU_ENGINE_COPY    1
#define VPU_ENGINE_NB      2

/*
 * VPU status values.
 */
#define VPU_JSM_STATUS_SUCCESS                           0x0U
#define VPU_JSM_STATUS_PARSING_ERR                       0x1U
#define VPU_JSM_STATUS_PROCESSING_ERR                    0x2U
#define VPU_JSM_STATUS_PREEMPTED                         0x3U
#define VPU_JSM_STATUS_ABORTED                           0x4U
#define VPU_JSM_STATUS_USER_CTX_VIOL_ERR                 0x5U
#define VPU_JSM_STATUS_GLOBAL_CTX_VIOL_ERR               0x6U
#define VPU_JSM_STATUS_MVNCI_WRONG_INPUT_FORMAT          0x7U
#define VPU_JSM_STATUS_MVNCI_UNSUPPORTED_NETWORK_ELEMENT 0x8U
#define VPU_JSM_STATUS_MVNCI_INVALID_HANDLE              0x9U
#define VPU_JSM_STATUS_MVNCI_OUT_OF_RESOURCES            0xAU
#define VPU_JSM_STATUS_MVNCI_NOT_IMPLEMENTED             0xBU
#define VPU_JSM_STATUS_MVNCI_INTERNAL_ERROR              0xCU
/* Job status returned when the job was preempted mid-inference */
#define VPU_JSM_STATUS_PREEMPTED_MID_INFERENCE           0xDU
#define VPU_JSM_STATUS_MVNCI_CONTEXT_VIOLATION_HW        0xEU

/*
 * Host <-> VPU IPC channels.
 * ASYNC commands use a high priority channel, other messages use low-priority ones.
 */
#define VPU_IPC_CHAN_ASYNC_CMD 0
#define VPU_IPC_CHAN_GEN_CMD   10
#define VPU_IPC_CHAN_JOB_RET   11

/*
 * Job flags bit masks.
 */
enum {
        /*
         * Null submission mask.
         * When set, batch buffer's commands are not processed but returned as
         * successful immediately, except fences and timestamps.
         * When cleared, batch buffer's commands are processed normally.
         * Used for testing and profiling purposes.
         */
        VPU_JOB_FLAGS_NULL_SUBMISSION_MASK = (1 << 0U),
        /*
         * Inline command mask.
         * When set, the object in job queue is an inline command (see struct vpu_inline_cmd below).
         * When cleared, the object in job queue is a job (see struct vpu_job_queue_entry below).
         */
        VPU_JOB_FLAGS_INLINE_CMD_MASK = (1 << 1U),
        /*
         * VPU private data mask.
         * Reserved for the VPU to store private data about the job (or inline command)
         * while being processed.
         */
        VPU_JOB_FLAGS_PRIVATE_DATA_MASK = 0xFFFF0000U
};

/*
 * Job queue flags bit masks.
 */
enum {
        /*
         * No job done notification mask.
         * When set, indicates that no job done notification should be sent for any
         * job from this queue. When cleared, indicates that job done notification
         * should be sent for every job completed from this queue.
         */
        VPU_JOB_QUEUE_FLAGS_NO_JOB_DONE_MASK = (1 << 0U),
        /*
         * Native fence usage mask.
         * When set, indicates that job queue uses native fences (as inline commands
         * in job queue). Such queues may also use legacy fences (as commands in batch buffers).
         * When cleared, indicates the job queue only uses legacy fences.
         * NOTE: For queues using native fences, VPU expects that all jobs in the queue
         * are immediately followed by an inline command object. This object is expected
         * to be a fence signal command in most cases, but can also be a NOP in case the host
         * does not need per-job fence signalling. Other inline commands objects can be
         * inserted between "job and inline command" pairs.
         */
        VPU_JOB_QUEUE_FLAGS_USE_NATIVE_FENCE_MASK = (1 << 1U),

        /*
         * Enable turbo mode for testing NPU performance; not recommended for regular usage.
         */
        VPU_JOB_QUEUE_FLAGS_TURBO_MODE = (1 << 2U)
};

/*
 * Max length (including trailing NULL char) of trace entity name (e.g., the
 * name of a logging destination or a loggable HW component).
 */
#define VPU_TRACE_ENTITY_NAME_MAX_LEN 32

/*
 * Max length (including trailing NULL char) of a dyndbg command.
 *
 * NOTE: 96 is used so that the size of 'struct vpu_ipc_msg' in the JSM API is
 * 128 bytes (multiple of 64 bytes, the cache line size).
 */
#define VPU_DYNDBG_CMD_MAX_LEN 96

/*
 * For HWS command queue scheduling, we can prioritise command queues inside the
 * same process with a relative in-process priority. Valid values for relative
 * priority are given below - max and min.
 */
#define VPU_HWS_COMMAND_QUEUE_MAX_IN_PROCESS_PRIORITY 7
#define VPU_HWS_COMMAND_QUEUE_MIN_IN_PROCESS_PRIORITY -7

/*
 * For HWS priority scheduling, we can have multiple realtime priority bands.
 * They are numbered 0 to a MAX.
 */
#define VPU_HWS_MAX_REALTIME_PRIORITY_LEVEL 31U

/*
 * vpu_jsm_engine_reset_context flag definitions
 */
#define VPU_ENGINE_RESET_CONTEXT_FLAG_COLLATERAL_DAMAGE_MASK BIT(0)
#define VPU_ENGINE_RESET_CONTEXT_HANG_PRIMARY_CAUSE          0
#define VPU_ENGINE_RESET_CONTEXT_COLLATERAL_DAMAGE           1

/*
 * Invalid command queue handle identifier. Applies to cmdq_id and cmdq_group
 * in this API.
 */
#define VPU_HWS_INVALID_CMDQ_HANDLE 0ULL

/*
 * Inline commands types.
 */
/*
 * NOP.
 * VPU does nothing other than consuming the inline command object.
 */
#define VPU_INLINE_CMD_TYPE_NOP          0x0
/*
 * Fence wait.
 * VPU waits for the fence current value to reach monitored value.
 * Fence wait operations are executed upon job dispatching. While waiting for
 * the fence to be satisfied, VPU blocks fetching of the next objects in the queue.
 * Jobs present in the queue prior to the fence wait object may be processed
 * concurrently.
 */
#define VPU_INLINE_CMD_TYPE_FENCE_WAIT   0x1
/*
 * Fence signal.
 * VPU sets the fence current value to the provided value. If new current value
 * is equal to or higher than monitored value, VPU sends fence signalled notification
 * to the host. Fence signal operations are executed upon completion of all the jobs
 * present in the queue prior to them, and in-order relative to each other in the queue.
 * But jobs in-between them may be processed concurrently and may complete out-of-order.
 */
#define VPU_INLINE_CMD_TYPE_FENCE_SIGNAL 0x2

/*
 * Job scheduling priority bands for both hardware scheduling and OS scheduling.
 */
enum vpu_job_scheduling_priority_band {
        VPU_JOB_SCHEDULING_PRIORITY_BAND_IDLE = 0,
        VPU_JOB_SCHEDULING_PRIORITY_BAND_NORMAL = 1,
        VPU_JOB_SCHEDULING_PRIORITY_BAND_FOCUS = 2,
        VPU_JOB_SCHEDULING_PRIORITY_BAND_REALTIME = 3,
        VPU_JOB_SCHEDULING_PRIORITY_BAND_COUNT = 4,
};

/*
 * Job format.
 * Jobs defines the actual workloads to be executed by a given engine.
 */
struct vpu_job_queue_entry {
        /**< Address of VPU commands batch buffer */
        u64 batch_buf_addr;
        /**< Job ID */
        u32 job_id;
        /**< Flags bit field, see VPU_JOB_FLAGS_* above */
        u32 flags;
        /**
         * Doorbell ring timestamp taken by KMD from SoC's global system clock, in
         * microseconds. NPU can convert this value to its own fixed clock's timebase,
         * to match other profiling timestamps.
         */
        u64 doorbell_timestamp;
        /**< Extra id for job tracking, used only in the firmware perf traces */
        u64 host_tracking_id;
        /**< Address of the primary preemption buffer to use for this job */
        u64 primary_preempt_buf_addr;
        /**< Size of the primary preemption buffer to use for this job */
        u32 primary_preempt_buf_size;
        /**< Size of secondary preemption buffer to use for this job */
        u32 secondary_preempt_buf_size;
        /**< Address of secondary preemption buffer to use for this job */
        u64 secondary_preempt_buf_addr;
        u64 reserved_0;
};

/*
 * Inline command format.
 * Inline commands are the commands executed at scheduler level (typically,
 * synchronization directives). Inline command and job objects must be of
 * the same size and have flags field at same offset.
 */
struct vpu_inline_cmd {
        u64 reserved_0;
        /* Inline command type, see VPU_INLINE_CMD_TYPE_* defines. */
        u32 type;
        /* Flags bit field, see VPU_JOB_FLAGS_* above. */
        u32 flags;
        /* Inline command payload. Depends on inline command type. */
        union {
                /* Fence (wait and signal) commands' payload. */
                struct {
                        /* Fence object handle. */
                        u64 fence_handle;
                        /* User VA of the current fence value. */
                        u64 current_value_va;
                        /* User VA of the monitored fence value (read-only). */
                        u64 monitored_value_va;
                        /* Value to wait for or write in fence location. */
                        u64 value;
                        /* User VA of the log buffer in which to add log entry on completion. */
                        u64 log_buffer_va;
                } fence;
                /* Other commands do not have a payload. */
                /* Payload definition for future inline commands can be inserted here. */
                u64 reserved_1[6];
        } payload;
};

/*
 * Job queue slots can be populated either with job objects or inline command objects.
 */
union vpu_jobq_slot {
        struct vpu_job_queue_entry job;
        struct vpu_inline_cmd inline_cmd;
};

/*
 * Job queue control registers.
 */
struct vpu_job_queue_header {
        u32 engine_idx;
        u32 head;
        u32 tail;
        u32 flags;
        /* Set to 1 to indicate priority_band field is valid */
        u32 priority_band_valid;
        /*
         * Priority for the work of this job queue, valid only if the HWS is NOT used
         * and the `priority_band_valid` is set to 1. It is applied only during
         * the VPU_JSM_MSG_REGISTER_DB message processing.
         * The device firmware might use the `priority_band` to optimize the power
         * management logic, but it will not affect the order of jobs.
         * Available priority bands: @see enum vpu_job_scheduling_priority_band
         */
        u32 priority_band;
        /* Inside realtime band assigns a further priority, limited to 0..31 range */
        u32 realtime_priority_level;
        u32 reserved_0[9];
};

/*
 * Job queue format.
 */
struct vpu_job_queue {
        struct vpu_job_queue_header header;
        union vpu_jobq_slot slot[];
};

/**
 * Logging entity types.
 *
 * This enum defines the different types of entities involved in logging.
 */
enum vpu_trace_entity_type {
        /** Logging destination (entity where logs can be stored / printed). */
        VPU_TRACE_ENTITY_TYPE_DESTINATION = 1,
        /** Loggable HW component (HW entity that can be logged). */
        VPU_TRACE_ENTITY_TYPE_HW_COMPONENT = 2,
};

/*
 * HWS specific log buffer header details.
 * Total size is 32 bytes.
 */
struct vpu_hws_log_buffer_header {
        /* Written by VPU after adding a log entry. Initialised by host to 0. */
        u32 first_free_entry_index;
        /* Incremented by VPU every time the VPU writes the 0th entry; initialised by host to 0. */
        u32 wraparound_count;
        /*
         * This is the number of buffers that can be stored in the log buffer provided by the host.
         * It is written by host before passing buffer to VPU. VPU should consider it read-only.
         */
        u64 num_of_entries;
        u64 reserved[2];
};

/*
 * HWS specific log buffer entry details.
 * Total size is 32 bytes.
 */
struct vpu_hws_log_buffer_entry {
        /* VPU timestamp must be an invariant timer tick (not impacted by DVFS) */
        u64 vpu_timestamp;
        /*
         * Operation type:
         *     0 - context state change
         *     1 - queue new work
         *     2 - queue unwait sync object
         *     3 - queue no more work
         *     4 - queue wait sync object
         */
        u32 operation_type;
        u32 reserved;
        /* Operation data depends on operation type */
        u64 operation_data[2];
};

/* Native fence log buffer types. */
enum vpu_hws_native_fence_log_type {
        VPU_HWS_NATIVE_FENCE_LOG_TYPE_WAITS = 1,
        VPU_HWS_NATIVE_FENCE_LOG_TYPE_SIGNALS = 2
};

/* HWS native fence log buffer header. */
struct vpu_hws_native_fence_log_header {
        union {
                struct {
                        /* Index of the first free entry in buffer. */
                        u32 first_free_entry_idx;
                        /* Incremented each time NPU wraps around the buffer to write next entry. */
                        u32 wraparound_count;
                };
                /* Field allowing atomic update of both fields above. */
                u64 atomic_wraparound_and_entry_idx;
        };
        /* Log buffer type, see enum vpu_hws_native_fence_log_type. */
        u64 type;
        /* Allocated number of entries in the log buffer. */
        u64 entry_nb;
        u64 reserved[2];
};

/* Native fence log operation types. */
enum vpu_hws_native_fence_log_op {
        VPU_HWS_NATIVE_FENCE_LOG_OP_SIGNAL_EXECUTED = 0,
        VPU_HWS_NATIVE_FENCE_LOG_OP_WAIT_UNBLOCKED = 1
};

/* HWS native fence log entry. */
struct vpu_hws_native_fence_log_entry {
        /* Newly signaled/unblocked fence value. */
        u64 fence_value;
        /* Native fence object handle to which this operation belongs. */
        u64 fence_handle;
        /* Operation type, see enum vpu_hws_native_fence_log_op. */
        u64 op_type;
        u64 reserved_0;
        /*
         * VPU_HWS_NATIVE_FENCE_LOG_OP_WAIT_UNBLOCKED only: Timestamp at which fence
         * wait was started (in NPU SysTime).
         */
        u64 fence_wait_start_ts;
        u64 reserved_1;
        /* Timestamp at which fence operation was completed (in NPU SysTime). */
        u64 fence_end_ts;
};

/* Native fence log buffer. */
struct vpu_hws_native_fence_log_buffer {
        struct vpu_hws_native_fence_log_header header;
        struct vpu_hws_native_fence_log_entry entry[];
};

/*
 * Host <-> VPU IPC messages types.
 */
enum vpu_ipc_msg_type {
        VPU_JSM_MSG_UNKNOWN = 0xFFFFFFFF,

        /* IPC Host -> Device, Async commands */
        VPU_JSM_MSG_ASYNC_CMD = 0x1100,
        VPU_JSM_MSG_ENGINE_RESET = VPU_JSM_MSG_ASYNC_CMD,
        /**
         * Preempt engine. The NPU stops (preempts) all the jobs currently
         * executing on the target engine making the engine become idle and ready to
         * execute new jobs.
         * NOTE: The NPU does not remove unstarted jobs (if any) from job queues of
         * the target engine, but it stops processing them (until the queue doorbell
         * is rung again); the host is responsible to reset the job queue, either
         * after preemption or when resubmitting jobs to the queue.
         */
        VPU_JSM_MSG_ENGINE_PREEMPT = 0x1101,
        VPU_JSM_MSG_REGISTER_DB = 0x1102,
        VPU_JSM_MSG_UNREGISTER_DB = 0x1103,
        VPU_JSM_MSG_QUERY_ENGINE_HB = 0x1104,
        VPU_JSM_MSG_GET_POWER_LEVEL_COUNT = 0x1105,
        VPU_JSM_MSG_GET_POWER_LEVEL = 0x1106,
        VPU_JSM_MSG_SET_POWER_LEVEL = 0x1107,
        /* @deprecated */
        VPU_JSM_MSG_METRIC_STREAMER_OPEN = 0x1108,
        /* @deprecated */
        VPU_JSM_MSG_METRIC_STREAMER_CLOSE = 0x1109,
        /** Configure logging (used to modify configuration passed in boot params). */
        VPU_JSM_MSG_TRACE_SET_CONFIG = 0x110a,
        /** Return current logging configuration. */
        VPU_JSM_MSG_TRACE_GET_CONFIG = 0x110b,
        /**
         * Get masks of destinations and HW components supported by the firmware
         * (may vary between HW generations and FW compile
         * time configurations)
         */
        VPU_JSM_MSG_TRACE_GET_CAPABILITY = 0x110c,
        /** Get the name of a destination or HW component. */
        VPU_JSM_MSG_TRACE_GET_NAME = 0x110d,
        /**
         * Release resource associated with host ssid . All jobs that belong to the host_ssid
         * aborted and removed from internal scheduling queues. All doorbells assigned
         * to the host_ssid are unregistered and any internal FW resources belonging to
         * the host_ssid are released.
         */
        VPU_JSM_MSG_SSID_RELEASE = 0x110e,
        /**
         * Start collecting metric data.
         * @see vpu_jsm_metric_streamer_start
         */
        VPU_JSM_MSG_METRIC_STREAMER_START = 0x110f,
        /**
         * Stop collecting metric data. This command will return success if it is called
         * for a metric stream that has already been stopped or was never started.
         * @see vpu_jsm_metric_streamer_stop
         */
        VPU_JSM_MSG_METRIC_STREAMER_STOP = 0x1110,
        /**
         * Update current and next buffer for metric data collection. This command can
         * also be used to request information about the number of collected samples
         * and the amount of data written to the buffer.
         * @see vpu_jsm_metric_streamer_update
         */
        VPU_JSM_MSG_METRIC_STREAMER_UPDATE = 0x1111,
        /**
         * Request description of selected metric groups and metric counters within
         * each group. The VPU will write the description of groups and counters to
         * the buffer specified in the command structure.
         * @see vpu_jsm_metric_streamer_start
         */
        VPU_JSM_MSG_METRIC_STREAMER_INFO = 0x1112,
        /** Control command: Priority band setup */
        VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP = 0x1113,
        /** Control command: Create command queue */
        VPU_JSM_MSG_CREATE_CMD_QUEUE = 0x1114,
        /** Control command: Destroy command queue */
        VPU_JSM_MSG_DESTROY_CMD_QUEUE = 0x1115,
        /** Control command: Set context scheduling properties */
        VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES = 0x1116,
        /*
         * Register a doorbell to notify VPU of new work. The doorbell may later be
         * deallocated or reassigned to another context.
         */
        VPU_JSM_MSG_HWS_REGISTER_DB = 0x1117,
        /** Control command: Log buffer setting */
        VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG = 0x1118,
        /* Control command: Suspend command queue. */
        VPU_JSM_MSG_HWS_SUSPEND_CMDQ = 0x1119,
        /* Control command: Resume command queue */
        VPU_JSM_MSG_HWS_RESUME_CMDQ = 0x111a,
        /* Control command: Resume engine after reset */
        VPU_JSM_MSG_HWS_ENGINE_RESUME = 0x111b,
        /* Control command: Enable survivability/DCT mode */
        VPU_JSM_MSG_DCT_ENABLE = 0x111c,
        /* Control command: Disable survivability/DCT mode */
        VPU_JSM_MSG_DCT_DISABLE = 0x111d,
        /**
         * Dump VPU state. To be used for debug purposes only.
         * NOTE: Please introduce new ASYNC commands before this one. *
         */
        VPU_JSM_MSG_STATE_DUMP = 0x11FF,

        /* IPC Host -> Device, General commands */
        VPU_JSM_MSG_GENERAL_CMD = 0x1200,
        VPU_JSM_MSG_BLOB_DEINIT_DEPRECATED = VPU_JSM_MSG_GENERAL_CMD,
        /**
         * Control dyndbg behavior by executing a dyndbg command; equivalent to
         * Linux command: `echo '<dyndbg_cmd>' > <debugfs>/dynamic_debug/control`.
         */
        VPU_JSM_MSG_DYNDBG_CONTROL = 0x1201,
        /**
         * Perform the save procedure for the D0i3 entry
         */
        VPU_JSM_MSG_PWR_D0I3_ENTER = 0x1202,

        /* IPC Device -> Host, Job completion */
        VPU_JSM_MSG_JOB_DONE = 0x2100,
        /* IPC Device -> Host, Fence signalled */
        VPU_JSM_MSG_NATIVE_FENCE_SIGNALLED = 0x2101,

        /* IPC Device -> Host, Async command completion */
        VPU_JSM_MSG_ASYNC_CMD_DONE = 0x2200,
        VPU_JSM_MSG_ENGINE_RESET_DONE = VPU_JSM_MSG_ASYNC_CMD_DONE,
        VPU_JSM_MSG_ENGINE_PREEMPT_DONE = 0x2201,
        VPU_JSM_MSG_REGISTER_DB_DONE = 0x2202,
        VPU_JSM_MSG_UNREGISTER_DB_DONE = 0x2203,
        VPU_JSM_MSG_QUERY_ENGINE_HB_DONE = 0x2204,
        VPU_JSM_MSG_GET_POWER_LEVEL_COUNT_DONE = 0x2205,
        VPU_JSM_MSG_GET_POWER_LEVEL_DONE = 0x2206,
        VPU_JSM_MSG_SET_POWER_LEVEL_DONE = 0x2207,
        /* @deprecated */
        VPU_JSM_MSG_METRIC_STREAMER_OPEN_DONE = 0x2208,
        /* @deprecated */
        VPU_JSM_MSG_METRIC_STREAMER_CLOSE_DONE = 0x2209,
        /** Response to VPU_JSM_MSG_TRACE_SET_CONFIG. */
        VPU_JSM_MSG_TRACE_SET_CONFIG_RSP = 0x220a,
        /** Response to VPU_JSM_MSG_TRACE_GET_CONFIG. */
        VPU_JSM_MSG_TRACE_GET_CONFIG_RSP = 0x220b,
        /** Response to VPU_JSM_MSG_TRACE_GET_CAPABILITY. */
        VPU_JSM_MSG_TRACE_GET_CAPABILITY_RSP = 0x220c,
        /** Response to VPU_JSM_MSG_TRACE_GET_NAME. */
        VPU_JSM_MSG_TRACE_GET_NAME_RSP = 0x220d,
        /** Response to VPU_JSM_MSG_SSID_RELEASE. */
        VPU_JSM_MSG_SSID_RELEASE_DONE = 0x220e,
        /**
         * Response to VPU_JSM_MSG_METRIC_STREAMER_START.
         * VPU will return an error result if metric collection cannot be started,
         * e.g. when the specified metric mask is invalid.
         * @see vpu_jsm_metric_streamer_done
         */
        VPU_JSM_MSG_METRIC_STREAMER_START_DONE = 0x220f,
        /**
         * Response to VPU_JSM_MSG_METRIC_STREAMER_STOP.
         * Returns information about collected metric data.
         * @see vpu_jsm_metric_streamer_done
         */
        VPU_JSM_MSG_METRIC_STREAMER_STOP_DONE = 0x2210,
        /**
         * Response to VPU_JSM_MSG_METRIC_STREAMER_UPDATE.
         * Returns information about collected metric data.
         * @see vpu_jsm_metric_streamer_done
         */
        VPU_JSM_MSG_METRIC_STREAMER_UPDATE_DONE = 0x2211,
        /**
         * Response to VPU_JSM_MSG_METRIC_STREAMER_INFO.
         * Returns a description of the metric groups and metric counters.
         * @see vpu_jsm_metric_streamer_done
         */
        VPU_JSM_MSG_METRIC_STREAMER_INFO_DONE = 0x2212,
        /**
         * Asynchronous event sent from the VPU to the host either when the current
         * metric buffer is full or when the VPU has collected a multiple of
         * @notify_sample_count samples as indicated through the start command
         * (VPU_JSM_MSG_METRIC_STREAMER_START). Returns information about collected
         * metric data.
         * @see vpu_jsm_metric_streamer_done
         */
        VPU_JSM_MSG_METRIC_STREAMER_NOTIFICATION = 0x2213,
        /** Response to control command: Priority band setup */
        VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP_RSP = 0x2214,
        /** Response to control command: Create command queue */
        VPU_JSM_MSG_CREATE_CMD_QUEUE_RSP = 0x2215,
        /** Response to control command: Destroy command queue */
        VPU_JSM_MSG_DESTROY_CMD_QUEUE_RSP = 0x2216,
        /** Response to control command: Set context scheduling properties */
        VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES_RSP = 0x2217,
        /** Response to control command: Log buffer setting */
        VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG_RSP = 0x2218,
        /* IPC Device -> Host, HWS notify index entry of log buffer written */
        VPU_JSM_MSG_HWS_SCHEDULING_LOG_NOTIFICATION = 0x2219,
        /* IPC Device -> Host, HWS completion of a context suspend request */
        VPU_JSM_MSG_HWS_SUSPEND_CMDQ_DONE = 0x221a,
        /* Response to control command: Resume command queue */
        VPU_JSM_MSG_HWS_RESUME_CMDQ_RSP = 0x221b,
        /* Response to control command: Resume engine command response */
        VPU_JSM_MSG_HWS_RESUME_ENGINE_DONE = 0x221c,
        /* Response to control command: Enable survivability/DCT mode */
        VPU_JSM_MSG_DCT_ENABLE_DONE = 0x221d,
        /* Response to control command: Disable survivability/DCT mode */
        VPU_JSM_MSG_DCT_DISABLE_DONE = 0x221e,
        /**
         * Response to state dump control command.
         * NOTE: Please introduce new ASYNC responses before this one. *
         */
        VPU_JSM_MSG_STATE_DUMP_RSP = 0x22FF,

        /* IPC Device -> Host, General command completion */
        VPU_JSM_MSG_GENERAL_CMD_DONE = 0x2300,
        VPU_JSM_MSG_BLOB_DEINIT_DONE = VPU_JSM_MSG_GENERAL_CMD_DONE,
        /** Response to VPU_JSM_MSG_DYNDBG_CONTROL. */
        VPU_JSM_MSG_DYNDBG_CONTROL_RSP = 0x2301,
        /**
         * Acknowledgment of completion of the save procedure initiated by
         * VPU_JSM_MSG_PWR_D0I3_ENTER
         */
        VPU_JSM_MSG_PWR_D0I3_ENTER_DONE = 0x2302,
};

enum vpu_ipc_msg_status { VPU_JSM_MSG_FREE, VPU_JSM_MSG_ALLOCATED };

/*
 * Host <-> LRT IPC message payload definitions
 */
struct vpu_ipc_msg_payload_engine_reset {
        /* Engine to be reset. */
        u32 engine_idx;
        /* Reserved */
        u32 reserved_0;
};

struct vpu_ipc_msg_payload_engine_preempt {
        /* Engine to be preempted. */
        u32 engine_idx;
        /* ID of the preemption request. */
        u32 preempt_id;
};

/*
 * @brief Register doorbell command structure.
 * This structure supports doorbell registration for only OS scheduling.
 * @see VPU_JSM_MSG_REGISTER_DB
 */
struct vpu_ipc_msg_payload_register_db {
        /* Index of the doorbell to register. */
        u32 db_idx;
        /* Reserved */
        u32 reserved_0;
        /* Virtual address in Global GTT pointing to the start of job queue. */
        u64 jobq_base;
        /* Size of the job queue in bytes. */
        u32 jobq_size;
        /* Host sub-stream ID for the context assigned to the doorbell. */
        u32 host_ssid;
};

/**
 * @brief Unregister doorbell command structure.
 * Request structure to unregister a doorbell for both HW and OS scheduling.
 * @see VPU_JSM_MSG_UNREGISTER_DB
 */
struct vpu_ipc_msg_payload_unregister_db {
        /* Index of the doorbell to unregister. */
        u32 db_idx;
        /* Reserved */
        u32 reserved_0;
};

struct vpu_ipc_msg_payload_query_engine_hb {
        /* Engine to return heartbeat value. */
        u32 engine_idx;
        /* Reserved */
        u32 reserved_0;
};

struct vpu_ipc_msg_payload_power_level {
        /**
         * Requested power level. The power level value is in the
         * range [0, power_level_count-1] where power_level_count
         * is the number of available power levels as returned by
         * the get power level count command. A power level of 0
         * corresponds to the maximum possible power level, while
         * power_level_count-1 corresponds to the minimum possible
         * power level. Values outside of this range are not
         * considered to be valid.
         */
        u32 power_level;
        /* Reserved */
        u32 reserved_0;
};

struct vpu_ipc_msg_payload_ssid_release {
        /* Host sub-stream ID for the context to be released. */
        u32 host_ssid;
        /* Reserved */
        u32 reserved_0;
};

/**
 * @brief Metric streamer start command structure.
 * This structure is also used with VPU_JSM_MSG_METRIC_STREAMER_INFO to request metric
 * groups and metric counters description from the firmware.
 * @see VPU_JSM_MSG_METRIC_STREAMER_START
 * @see VPU_JSM_MSG_METRIC_STREAMER_INFO
 */
struct vpu_jsm_metric_streamer_start {
        /**
         * Bitmask to select the desired metric groups.
         * A metric group can belong only to one metric streamer instance at a time.
         * Since each metric streamer instance has a unique set of metric groups, it
         * can also identify a metric streamer instance if more than one instance was
         * started. If the VPU device does not support multiple metric streamer instances,
         * then VPU_JSM_MSG_METRIC_STREAMER_START will return an error even if the second
         * instance has different groups to the first.
         */
        u64 metric_group_mask;
        /** Sampling rate in nanoseconds. */
        u64 sampling_rate;
        /**
         * If > 0 the VPU will send a VPU_JSM_MSG_METRIC_STREAMER_NOTIFICATION message
         * after every @notify_sample_count samples is collected or dropped by the VPU.
         * If set to UINT_MAX the VPU will only generate a notification when the metric
         * buffer is full. If set to 0 the VPU will never generate a notification.
         */
        u32 notify_sample_count;
        u32 reserved_0;
        /**
         * Address and size of the buffer where the VPU will write metric data. The
         * VPU writes all counters from enabled metric groups one after another. If
         * there is no space left to write data at the next sample period the VPU
         * will switch to the next buffer (@see next_buffer_addr) and will optionally
         * send a notification to the host driver if @notify_sample_count is non-zero.
         * If @next_buffer_addr is NULL the VPU will stop collecting metric data.
         */
        u64 buffer_addr;
        u64 buffer_size;
        /**
         * Address and size of the next buffer to write metric data to after the initial
         * buffer is full. If the address is NULL the VPU will stop collecting metric
         * data.
         */
        u64 next_buffer_addr;
        u64 next_buffer_size;
};

/**
 * @brief Metric streamer stop command structure.
 * @see VPU_JSM_MSG_METRIC_STREAMER_STOP
 */
struct vpu_jsm_metric_streamer_stop {
        /** Bitmask to select the desired metric groups. */
        u64 metric_group_mask;
};

/**
 * Provide VPU FW with buffers to write metric data.
 * @see VPU_JSM_MSG_METRIC_STREAMER_UPDATE
 */
struct vpu_jsm_metric_streamer_update {
        /** Metric group mask that identifies metric streamer instance. */
        u64 metric_group_mask;
        /**
         * Address and size of the buffer where the VPU will write metric data. If
         * the buffer address is 0 or same as the currently used buffer the VPU will
         * continue writing metric data to the current buffer. In this case the
         * buffer size is ignored and the size of the current buffer is unchanged.
         * If the address is non-zero and differs from the current buffer address the
         * VPU will immediately switch data collection to the new buffer.
         */
        u64 buffer_addr;
        u64 buffer_size;
        /**
         * Address and size of the next buffer to write metric data after the initial
         * buffer is full. If the address is NULL the VPU will stop collecting metric
         * data but will continue to record dropped samples.
         *
         * Note that there is a hazard possible if both buffer_addr and the next_buffer_addr
         * are non-zero in same update request. It is the host's responsibility to ensure
         * that both addresses make sense even if the VPU just switched to writing samples
         * from the current to the next buffer.
         */
        u64 next_buffer_addr;
        u64 next_buffer_size;
};

struct vpu_ipc_msg_payload_job_done {
        /* Engine to which the job was submitted. */
        u32 engine_idx;
        /* Index of the doorbell to which the job was submitted */
        u32 db_idx;
        /* ID of the completed job */
        u32 job_id;
        /* Status of the completed job */
        u32 job_status;
        /* Host SSID */
        u32 host_ssid;
        /* Zero Padding */
        u32 reserved_0;
        /* Command queue id */
        u64 cmdq_id;
};

/*
 * Notification message upon native fence signalling.
 * @see VPU_JSM_MSG_NATIVE_FENCE_SIGNALLED
 */
struct vpu_ipc_msg_payload_native_fence_signalled {
        /* Engine ID. */
        u32 engine_idx;
        /* Host SSID. */
        u32 host_ssid;
        /* CMDQ ID */
        u64 cmdq_id;
        /* Fence object handle. */
        u64 fence_handle;
};

struct vpu_jsm_engine_reset_context {
        /* Host SSID */
        u32 host_ssid;
        /* Zero Padding */
        u32 reserved_0;
        /* Command queue id */
        u64 cmdq_id;
        /* See VPU_ENGINE_RESET_CONTEXT_* defines */
        u64 flags;
};

struct vpu_ipc_msg_payload_engine_reset_done {
        /* Engine ordinal */
        u32 engine_idx;
        /* Number of impacted contexts */
        u32 num_impacted_contexts;
        /* Array of impacted command queue ids and their flags */
        struct vpu_jsm_engine_reset_context
                impacted_contexts[VPU_MAX_ENGINE_RESET_IMPACTED_CONTEXTS];
};

struct vpu_ipc_msg_payload_engine_preempt_done {
        /* Engine preempted. */
        u32 engine_idx;
        /* ID of the preemption request. */
        u32 preempt_id;
};

/**
 * Response structure for register doorbell command for both OS
 * and HW scheduling.
 * @see VPU_JSM_MSG_REGISTER_DB
 * @see VPU_JSM_MSG_HWS_REGISTER_DB
 */
struct vpu_ipc_msg_payload_register_db_done {
        /* Index of the registered doorbell. */
        u32 db_idx;
        /* Reserved */
        u32 reserved_0;
};

/**
 * Response structure for unregister doorbell command for both OS
 * and HW scheduling.
 * @see VPU_JSM_MSG_UNREGISTER_DB
 */
struct vpu_ipc_msg_payload_unregister_db_done {
        /* Index of the unregistered doorbell. */
        u32 db_idx;
        /* Reserved */
        u32 reserved_0;
};

struct vpu_ipc_msg_payload_query_engine_hb_done {
        /* Engine returning heartbeat value. */
        u32 engine_idx;
        /* Reserved */
        u32 reserved_0;
        /* Heartbeat value. */
        u64 heartbeat;
};

struct vpu_ipc_msg_payload_get_power_level_count_done {
        /**
         * Number of supported power levels. The maximum possible
         * value of power_level_count is 16 but this may vary across
         * implementations.
         */
        u32 power_level_count;
        /* Reserved */
        u32 reserved_0;
        /**
         * Power consumption limit for each supported power level in
         * [0-100%] range relative to power level 0.
         */
        u8 power_limit[16];
};

/* HWS priority band setup request / response */
struct vpu_ipc_msg_payload_hws_priority_band_setup {
        /*
         * Grace period in 100ns units when preempting another priority band for
         * this priority band
         */
        u32 grace_period[VPU_HWS_NUM_PRIORITY_BANDS];
        /*
         * Default quantum in 100ns units for scheduling across processes
         * within a priority band
         */
        u32 process_quantum[VPU_HWS_NUM_PRIORITY_BANDS];
        /*
         * Default grace period in 100ns units for processes that preempt each
         * other within a priority band
         */
        u32 process_grace_period[VPU_HWS_NUM_PRIORITY_BANDS];
        /*
         * For normal priority band, specifies the target VPU percentage
         * in situations when it's starved by the focus band.
         */
        u32 normal_band_percentage;
        /* Reserved */
        u32 reserved_0;
};

/*
 * @brief HWS create command queue request.
 * Host will create a command queue via this command.
 * Note: Cmdq group is a handle of an object which
 * may contain one or more command queues.
 * @see VPU_JSM_MSG_CREATE_CMD_QUEUE
 * @see VPU_JSM_MSG_CREATE_CMD_QUEUE_RSP
 */
struct vpu_ipc_msg_payload_hws_create_cmdq {
        /* Process id */
        u64 process_id;
        /* Host SSID */
        u32 host_ssid;
        /* Engine for which queue is being created */
        u32 engine_idx;
        /* Cmdq group: only used for HWS logging of state changes */
        u64 cmdq_group;
        /* Command queue id */
        u64 cmdq_id;
        /* Command queue base */
        u64 cmdq_base;
        /* Command queue size */
        u32 cmdq_size;
        /* Zero padding */
        u32 reserved_0;
};

/*
 * @brief HWS create command queue response.
 * @see VPU_JSM_MSG_CREATE_CMD_QUEUE
 * @see VPU_JSM_MSG_CREATE_CMD_QUEUE_RSP
 */
struct vpu_ipc_msg_payload_hws_create_cmdq_rsp {
        /* Process id */
        u64 process_id;
        /* Host SSID */
        u32 host_ssid;
        /* Engine for which queue is being created */
        u32 engine_idx;
        /* Command queue group */
        u64 cmdq_group;
        /* Command queue id */
        u64 cmdq_id;
};

/* HWS destroy command queue request / response */
struct vpu_ipc_msg_payload_hws_destroy_cmdq {
        /* Host SSID */
        u32 host_ssid;
        /* Zero Padding */
        u32 reserved;
        /* Command queue id */
        u64 cmdq_id;
};

/* HWS set context scheduling properties request / response */
struct vpu_ipc_msg_payload_hws_set_context_sched_properties {
        /* Host SSID */
        u32 host_ssid;
        /* Zero Padding */
        u32 reserved_0;
        /* Command queue id */
        u64 cmdq_id;
        /*
         * Priority band to assign to work of this context.
         * Available priority bands: @see enum vpu_job_scheduling_priority_band
         */
        u32 priority_band;
        /* Inside realtime band assigns a further priority */
        u32 realtime_priority_level;
        /* Priority relative to other contexts in the same process */
        s32 in_process_priority;
        /* Zero padding / Reserved */
        u32 reserved_1;
        /* Context quantum relative to other contexts of same priority in the same process */
        u64 context_quantum;
        /* Grace period when preempting context of the same priority within the same process */
        u64 grace_period_same_priority;
        /* Grace period when preempting context of a lower priority within the same process */
        u64 grace_period_lower_priority;
};

/*
 * @brief Register doorbell command structure.
 * This structure supports doorbell registration for both HW and OS scheduling.
 * Note: Queue base and size are added here so that the same structure can be used for
 * OS scheduling and HW scheduling. For OS scheduling, cmdq_id will be ignored
 * and cmdq_base and cmdq_size will be used. For HW scheduling, cmdq_base and cmdq_size will be
 * ignored and cmdq_id is used.
 * @see VPU_JSM_MSG_HWS_REGISTER_DB
 */
struct vpu_jsm_hws_register_db {
        /* Index of the doorbell to register. */
        u32 db_id;
        /* Host sub-stream ID for the context assigned to the doorbell. */
        u32 host_ssid;
        /* ID of the command queue associated with the doorbell. */
        u64 cmdq_id;
        /* Virtual address pointing to the start of command queue. */
        u64 cmdq_base;
        /* Size of the command queue in bytes. */
        u64 cmdq_size;
};

/*
 * @brief Structure to set another buffer to be used for scheduling-related logging.
 * The size of the logging buffer and the number of entries is defined as part of the
 * buffer itself as described next.
 * The log buffer received from the host is made up of;
 *   - header:     32 bytes in size, as shown in 'struct vpu_hws_log_buffer_header'.
 *                 The header contains the number of log entries in the buffer.
 *   - log entry:  0 to n-1, each log entry is 32 bytes in size, as shown in
 *                 'struct vpu_hws_log_buffer_entry'.
 *                 The entry contains the VPU timestamp, operation type and data.
 * The host should provide the notify index value of log buffer to VPU. This is a
 * value defined within the log buffer and when written to will generate the
 * scheduling log notification.
 * The host should set engine_idx and vpu_log_buffer_va to 0 to disable logging
 * for a particular engine.
 * VPU will handle one log buffer for each of supported engines.
 * VPU should allow the logging to consume one host_ssid.
 * @see VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG
 * @see VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG_RSP
 * @see VPU_JSM_MSG_HWS_SCHEDULING_LOG_NOTIFICATION
 */
struct vpu_ipc_msg_payload_hws_set_scheduling_log {
        /* Engine ordinal */
        u32 engine_idx;
        /* Host SSID */
        u32 host_ssid;
        /*
         * VPU log buffer virtual address.
         * Set to 0 to disable logging for this engine.
         */
        u64 vpu_log_buffer_va;
        /*
         * Notify index of log buffer. VPU_JSM_MSG_HWS_SCHEDULING_LOG_NOTIFICATION
         * is generated when an event log is written to this index.
         */
        u64 notify_index;
        /*
         * Field is now deprecated, will be removed when KMD is updated to support removal
         */
        u32 enable_extra_events;
        /* Zero Padding */
        u32 reserved_0;
};

/*
 * @brief The scheduling log notification is generated by VPU when it writes
 * an event into the log buffer at the notify_index. VPU notifies host with
 * VPU_JSM_MSG_HWS_SCHEDULING_LOG_NOTIFICATION. This is an asynchronous
 * message from VPU to host.
 * @see VPU_JSM_MSG_HWS_SCHEDULING_LOG_NOTIFICATION
 * @see VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG
 */
struct vpu_ipc_msg_payload_hws_scheduling_log_notification {
        /* Engine ordinal */
        u32 engine_idx;
        /* Zero Padding */
        u32 reserved_0;
};

/*
 * @brief HWS suspend command queue request and done structure.
 * Host will request the suspend of contexts and VPU will;
 *   - Suspend all work on this context
 *   - Preempt any running work
 *   - Asynchronously perform the above and return success immediately once
 *     all items above are started successfully
 *   - Notify the host of completion of these operations via
 *     VPU_JSM_MSG_HWS_SUSPEND_CMDQ_DONE
 *   - Reject any other context operations on a context with an in-flight
 *     suspend request running
 * Same structure used when VPU notifies host of completion of a context suspend
 * request. The ids and suspend fence value reported in this command will match
 * the one in the request from the host to suspend the context. Once suspend is
 * complete, VPU will not access any data relating to this command queue until
 * it is resumed.
 * @see VPU_JSM_MSG_HWS_SUSPEND_CMDQ
 * @see VPU_JSM_MSG_HWS_SUSPEND_CMDQ_DONE
 */
struct vpu_ipc_msg_payload_hws_suspend_cmdq {
        /* Host SSID */
        u32 host_ssid;
        /* Zero Padding */
        u32 reserved_0;
        /* Command queue id */
        u64 cmdq_id;
        /*
         * Suspend fence value - reported by the VPU suspend context
         * completed once suspend is complete.
         */
        u64 suspend_fence_value;
};

/*
 * @brief HWS Resume command queue request / response structure.
 * Host will request the resume of a context;
 *  - VPU will resume all work on this context
 *  - Scheduler will allow this context to be scheduled
 * @see VPU_JSM_MSG_HWS_RESUME_CMDQ
 * @see VPU_JSM_MSG_HWS_RESUME_CMDQ_RSP
 */
struct vpu_ipc_msg_payload_hws_resume_cmdq {
        /* Host SSID */
        u32 host_ssid;
        /* Zero Padding */
        u32 reserved_0;
        /* Command queue id */
        u64 cmdq_id;
};

/*
 * @brief HWS Resume engine request / response structure.
 * After a HWS engine reset, all scheduling is stopped on VPU until a engine resume.
 * Host shall send this command to resume scheduling of any valid queue.
 * @see VPU_JSM_MSG_HWS_RESUME_ENGINE
 * @see VPU_JSM_MSG_HWS_RESUME_ENGINE_DONE
 */
struct vpu_ipc_msg_payload_hws_resume_engine {
        /* Engine to be resumed */
        u32 engine_idx;
        /* Reserved */
        u32 reserved_0;
};

/**
 * Payload for VPU_JSM_MSG_TRACE_SET_CONFIG[_RSP] and
 * VPU_JSM_MSG_TRACE_GET_CONFIG_RSP messages.
 *
 * The payload is interpreted differently depending on the type of message:
 *
 * - For VPU_JSM_MSG_TRACE_SET_CONFIG, the payload specifies the desired
 *   logging configuration to be set.
 *
 * - For VPU_JSM_MSG_TRACE_SET_CONFIG_RSP, the payload reports the logging
 *   configuration that was set after a VPU_JSM_MSG_TRACE_SET_CONFIG request.
 *   The host can compare this payload with the one it sent in the
 *   VPU_JSM_MSG_TRACE_SET_CONFIG request to check whether or not the
 *   configuration was set as desired.
 *
 * - VPU_JSM_MSG_TRACE_GET_CONFIG_RSP, the payload reports the current logging
 *   configuration.
 */
struct vpu_ipc_msg_payload_trace_config {
        /**
         * Logging level (currently set or to be set); see 'mvLog_t' enum for
         * acceptable values. The specified logging level applies to all
         * destinations and HW components
         */
        u32 trace_level;
        /**
         * Bitmask of logging destinations (currently enabled or to be enabled);
         * bitwise OR of values defined in logging_destination enum.
         */
        u32 trace_destination_mask;
        /**
         * Bitmask of loggable HW components (currently enabled or to be enabled);
         * bitwise OR of values defined in loggable_hw_component enum.
         */
        u64 trace_hw_component_mask;
        u64 reserved_0; /**< Reserved for future extensions. */
};

/**
 * Payload for VPU_JSM_MSG_TRACE_GET_CAPABILITY_RSP messages.
 */
struct vpu_ipc_msg_payload_trace_capability_rsp {
        u32 trace_destination_mask; /**< Bitmask of supported logging destinations. */
        u32 reserved_0;
        u64 trace_hw_component_mask; /**< Bitmask of supported loggable HW components. */
        u64 reserved_1; /**< Reserved for future extensions. */
};

/**
 * Payload for VPU_JSM_MSG_TRACE_GET_NAME requests.
 */
struct vpu_ipc_msg_payload_trace_get_name {
        /**
         * The type of the entity to query name for; see logging_entity_type for
         * possible values.
         */
        u32 entity_type;
        u32 reserved_0;
        /**
         * The ID of the entity to query name for; possible values depends on the
         * entity type.
         */
        u64 entity_id;
};

/**
 * Payload for VPU_JSM_MSG_TRACE_GET_NAME_RSP responses.
 */
struct vpu_ipc_msg_payload_trace_get_name_rsp {
        /**
         * The type of the entity whose name was queried; see logging_entity_type
         * for possible values.
         */
        u32 entity_type;
        u32 reserved_0;
        /**
         * The ID of the entity whose name was queried; possible values depends on
         * the entity type.
         */
        u64 entity_id;
        /** Reserved for future extensions. */
        u64 reserved_1;
        /** The name of the entity. */
        char entity_name[VPU_TRACE_ENTITY_NAME_MAX_LEN];
};

/**
 * Data sent from the VPU to the host in all metric streamer response messages
 * and in asynchronous notification.
 * @see VPU_JSM_MSG_METRIC_STREAMER_START_DONE
 * @see VPU_JSM_MSG_METRIC_STREAMER_STOP_DONE
 * @see VPU_JSM_MSG_METRIC_STREAMER_UPDATE_DONE
 * @see VPU_JSM_MSG_METRIC_STREAMER_INFO_DONE
 * @see VPU_JSM_MSG_METRIC_STREAMER_NOTIFICATION
 */
struct vpu_jsm_metric_streamer_done {
        /** Metric group mask that identifies metric streamer instance. */
        u64 metric_group_mask;
        /**
         * Size in bytes of single sample - total size of all enabled counters.
         * Some VPU implementations may align sample_size to more than 8 bytes.
         */
        u32 sample_size;
        u32 reserved_0;
        /**
         * Number of samples collected since the metric streamer was started.
         * This will be 0 if the metric streamer was not started.
         */
        u32 samples_collected;
        /**
         * Number of samples dropped since the metric streamer was started. This
         * is incremented every time the metric streamer is not able to write
         * collected samples because the current buffer is full and there is no
         * next buffer to switch to.
         */
        u32 samples_dropped;
        /** Address of the buffer that contains the latest metric data. */
        u64 buffer_addr;
        /**
         * Number of bytes written into the metric data buffer. In response to the
         * VPU_JSM_MSG_METRIC_STREAMER_INFO request this field contains the size of
         * all group and counter descriptors. The size is updated even if the buffer
         * in the request was NULL or too small to hold descriptors of all counters
         */
        u64 bytes_written;
};

/**
 * Metric group description placed in the metric buffer after successful completion
 * of the VPU_JSM_MSG_METRIC_STREAMER_INFO command. This is followed by one or more
 * @vpu_jsm_metric_counter_descriptor records.
 * @see VPU_JSM_MSG_METRIC_STREAMER_INFO
 */
struct vpu_jsm_metric_group_descriptor {
        /**
         * Offset to the next metric group (8-byte aligned). If this offset is 0 this
         * is the last descriptor. The value of metric_info_size must be greater than
         * or equal to sizeof(struct vpu_jsm_metric_group_descriptor) + name_string_size
         * + description_string_size and must be 8-byte aligned.
         */
        u32 next_metric_group_info_offset;
        /**
         * Offset to the first metric counter description record (8-byte aligned).
         * @see vpu_jsm_metric_counter_descriptor
         */
        u32 next_metric_counter_info_offset;
        /** Index of the group. This corresponds to bit index in metric_group_mask. */
        u32 group_id;
        /** Number of counters in the metric group. */
        u32 num_counters;
        /** Data size for all counters, must be a multiple of 8 bytes.*/
        u32 metric_group_data_size;
        /**
         * Metric group domain number. Cannot use multiple, simultaneous metric groups
         * from the same domain.
         */
        u32 domain;
        /**
         * Counter name string size. The string must include a null termination character.
         * The FW may use a fixed size name or send a different name for each counter.
         * If the VPU uses fixed size strings, all characters from the end of the name
         * to the of the fixed size character array must be zeroed.
         */
        u32 name_string_size;
        /** Counter description string size, @see name_string_size */
        u32 description_string_size;
        u64 reserved_0;
        /**
         * Right after this structure, the VPU writes name and description of
         * the metric group.
         */
};

/**
 * Metric counter description, placed in the buffer after vpu_jsm_metric_group_descriptor.
 * @see VPU_JSM_MSG_METRIC_STREAMER_INFO
 */
struct vpu_jsm_metric_counter_descriptor {
        /**
         * Offset to the next counter in a group (8-byte aligned). If this offset is
         * 0 this is the last counter in the group.
         */
        u32 next_metric_counter_info_offset;
        /**
         * Offset to the counter data from the start of samples in this metric group.
         * Note that metric_data_offset % metric_data_size must be 0.
         */
        u32 metric_data_offset;
        /** Size of the metric counter data in bytes. */
        u32 metric_data_size;
        /** Metric type, see Level Zero API for definitions. */
        u32 tier;
        /** Metric type, see set_metric_type_t for definitions. */
        u32 metric_type;
        /** Metric type, see set_value_type_t for definitions. */
        u32 metric_value_type;
        /**
         * Counter name string size. The string must include a null termination character.
         * The FW may use a fixed size name or send a different name for each counter.
         * If the VPU uses fixed size strings, all characters from the end of the name
         * to the of the fixed size character array must be zeroed.
         */
        u32 name_string_size;
        /** Counter description string size, @see name_string_size */
        u32 description_string_size;
        /** Counter component name string size, @see name_string_size */
        u32 component_string_size;
        /** Counter string size, @see name_string_size */
        u32 units_string_size;
        u64 reserved_0;
        /**
         * Right after this structure, the VPU writes name, description
         * component and unit strings.
         */
};

/**
 * Payload for VPU_JSM_MSG_DYNDBG_CONTROL requests.
 *
 * VPU_JSM_MSG_DYNDBG_CONTROL are used to control the VPU FW Dynamic Debug
 * feature, which allows developers to selectively enable / disable MVLOG_DEBUG
 * messages. This is equivalent to the Dynamic Debug functionality provided by
 * Linux
 * (https://www.kernel.org/doc/html/latest/admin-guide/dynamic-debug-howto.html)
 * The host can control Dynamic Debug behavior by sending dyndbg commands, which
 * have the same syntax as Linux
 * dyndbg commands.
 *
 * NOTE: in order for MVLOG_DEBUG messages to be actually printed, the host
 * still has to set the logging level to MVLOG_DEBUG, using the
 * VPU_JSM_MSG_TRACE_SET_CONFIG command.
 *
 * The host can see the current dynamic debug configuration by executing a
 * special 'show' command. The dyndbg configuration will be printed to the
 * configured logging destination using MVLOG_INFO logging level.
 */
struct vpu_ipc_msg_payload_dyndbg_control {
        /**
         * Dyndbg command (same format as Linux dyndbg); must be a NULL-terminated
         * string.
         */
        char dyndbg_cmd[VPU_DYNDBG_CMD_MAX_LEN];
};

/**
 * Payload for VPU_JSM_MSG_PWR_D0I3_ENTER
 *
 * This is a bi-directional payload.
 */
struct vpu_ipc_msg_payload_pwr_d0i3_enter {
        /**
         * 0: VPU_JSM_MSG_PWR_D0I3_ENTER_DONE is not sent to the host driver
         *    The driver will poll for D0i2 Idle state transitions.
         * 1: VPU_JSM_MSG_PWR_D0I3_ENTER_DONE is sent after VPU state save is complete
         */
        u32 send_response;
        u32 reserved_0;
};

/**
 * Payload for VPU_JSM_MSG_DCT_ENABLE message.
 *
 * Default values for DCT active/inactive times are 5.3ms and 30ms respectively,
 * corresponding to a 85% duty cycle. This payload allows the host to tune these
 * values according to application requirements.
 */
struct vpu_ipc_msg_payload_pwr_dct_control {
        /** Duty cycle active time in microseconds */
        u32 dct_active_us;
        /** Duty cycle inactive time in microseconds */
        u32 dct_inactive_us;
};

/*
 * Payloads union, used to define complete message format.
 */
union vpu_ipc_msg_payload {
        struct vpu_ipc_msg_payload_engine_reset engine_reset;
        struct vpu_ipc_msg_payload_engine_preempt engine_preempt;
        struct vpu_ipc_msg_payload_register_db register_db;
        struct vpu_ipc_msg_payload_unregister_db unregister_db;
        struct vpu_ipc_msg_payload_query_engine_hb query_engine_hb;
        struct vpu_ipc_msg_payload_power_level power_level;
        struct vpu_jsm_metric_streamer_start metric_streamer_start;
        struct vpu_jsm_metric_streamer_stop metric_streamer_stop;
        struct vpu_jsm_metric_streamer_update metric_streamer_update;
        struct vpu_ipc_msg_payload_ssid_release ssid_release;
        struct vpu_jsm_hws_register_db hws_register_db;
        struct vpu_ipc_msg_payload_job_done job_done;
        struct vpu_ipc_msg_payload_native_fence_signalled native_fence_signalled;
        struct vpu_ipc_msg_payload_engine_reset_done engine_reset_done;
        struct vpu_ipc_msg_payload_engine_preempt_done engine_preempt_done;
        struct vpu_ipc_msg_payload_register_db_done register_db_done;
        struct vpu_ipc_msg_payload_unregister_db_done unregister_db_done;
        struct vpu_ipc_msg_payload_query_engine_hb_done query_engine_hb_done;
        struct vpu_ipc_msg_payload_get_power_level_count_done get_power_level_count_done;
        struct vpu_jsm_metric_streamer_done metric_streamer_done;
        struct vpu_ipc_msg_payload_trace_config trace_config;
        struct vpu_ipc_msg_payload_trace_capability_rsp trace_capability;
        struct vpu_ipc_msg_payload_trace_get_name trace_get_name;
        struct vpu_ipc_msg_payload_trace_get_name_rsp trace_get_name_rsp;
        struct vpu_ipc_msg_payload_dyndbg_control dyndbg_control;
        struct vpu_ipc_msg_payload_hws_priority_band_setup hws_priority_band_setup;
        struct vpu_ipc_msg_payload_hws_create_cmdq hws_create_cmdq;
        struct vpu_ipc_msg_payload_hws_create_cmdq_rsp hws_create_cmdq_rsp;
        struct vpu_ipc_msg_payload_hws_destroy_cmdq hws_destroy_cmdq;
        struct vpu_ipc_msg_payload_hws_set_context_sched_properties
                hws_set_context_sched_properties;
        struct vpu_ipc_msg_payload_hws_set_scheduling_log hws_set_scheduling_log;
        struct vpu_ipc_msg_payload_hws_scheduling_log_notification hws_scheduling_log_notification;
        struct vpu_ipc_msg_payload_hws_suspend_cmdq hws_suspend_cmdq;
        struct vpu_ipc_msg_payload_hws_resume_cmdq hws_resume_cmdq;
        struct vpu_ipc_msg_payload_hws_resume_engine hws_resume_engine;
        struct vpu_ipc_msg_payload_pwr_d0i3_enter pwr_d0i3_enter;
        struct vpu_ipc_msg_payload_pwr_dct_control pwr_dct_control;
};

/*
 * Host <-> LRT IPC message base structure.
 *
 * NOTE: All instances of this object must be aligned on a 64B boundary
 * to allow proper handling of VPU cache operations.
 */
struct vpu_jsm_msg {
        /* Reserved */
        u64 reserved_0;
        /* Message type, see vpu_ipc_msg_type enum. */
        u32 type;
        /* Buffer status, see vpu_ipc_msg_status enum. */
        u32 status;
        /*
         * Request ID, provided by the host in a request message and passed
         * back by VPU in the response message.
         */
        u32 request_id;
        /* Request return code set by the VPU, see VPU_JSM_STATUS_* defines. */
        u32 result;
        u64 reserved_1;
        /* Message payload depending on message type, see vpu_ipc_msg_payload union. */
        union vpu_ipc_msg_payload payload;
};

#pragma pack(pop)

#endif

///@}