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-rw-r--r--drivers/accel/ivpu/vpu_jsm_api.h653
1 files changed, 417 insertions, 236 deletions
diff --git a/drivers/accel/ivpu/vpu_jsm_api.h b/drivers/accel/ivpu/vpu_jsm_api.h
index 4b6b2b3d2583..bca6a44dc041 100644
--- a/drivers/accel/ivpu/vpu_jsm_api.h
+++ b/drivers/accel/ivpu/vpu_jsm_api.h
@@ -1,15 +1,16 @@
/* SPDX-License-Identifier: MIT */
/*
- * Copyright (c) 2020-2024, Intel Corporation.
+ * Copyright (c) 2020-2025, Intel Corporation.
+ */
+
+/**
+ * @addtogroup Jsm
+ * @{
*/
/**
* @file
* @brief JSM shared definitions
- *
- * @ingroup Jsm
- * @brief JSM shared definitions
- * @{
*/
#ifndef VPU_JSM_API_H
#define VPU_JSM_API_H
@@ -22,7 +23,7 @@
/*
* Minor version changes when API backward compatibility is preserved.
*/
-#define VPU_JSM_API_VER_MINOR 29
+#define VPU_JSM_API_VER_MINOR 33
/*
* API header changed (field names, documentation, formatting) but API itself has not been changed
@@ -71,9 +72,15 @@
#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 */
+/* @deprecated (use VPU_JSM_STATUS_PREEMPTED_MID_COMMAND instead) */
#define VPU_JSM_STATUS_PREEMPTED_MID_INFERENCE 0xDU
+/* Job status returned when the job was preempted mid-command */
+#define VPU_JSM_STATUS_PREEMPTED_MID_COMMAND 0xDU
+/* Range of status codes that require engine reset */
+#define VPU_JSM_STATUS_ENGINE_RESET_REQUIRED_MIN 0xEU
#define VPU_JSM_STATUS_MVNCI_CONTEXT_VIOLATION_HW 0xEU
+#define VPU_JSM_STATUS_MVNCI_PREEMPTION_TIMED_OUT 0xFU
+#define VPU_JSM_STATUS_ENGINE_RESET_REQUIRED_MAX 0x1FU
/*
* Host <-> VPU IPC channels.
@@ -134,11 +141,21 @@ enum {
* 2. Native fence queues are only supported on VPU 40xx onwards.
*/
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)
+ VPU_JOB_QUEUE_FLAGS_TURBO_MODE = (1 << 2U),
+ /*
+ * Queue error detection mode flag
+ * For 'interactive' queues (this bit not set), the FW will identify queues that have not
+ * completed a job inside the TDR timeout as in error as part of engine reset sequence.
+ * For 'non-interactive' queues (this bit set), the FW will identify queues that have not
+ * progressed the heartbeat inside the non-interactive no-progress timeout as in error as
+ * part of engine reset sequence. Additionally, there is an upper limit applied to these
+ * queues: even if they progress the heartbeat, if they run longer than non-interactive
+ * timeout, then the FW will also identify them as in error.
+ */
+ VPU_JOB_QUEUE_FLAGS_NON_INTERACTIVE = (1 << 3U)
};
/*
@@ -209,7 +226,7 @@ enum {
*/
#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 {
@@ -220,16 +237,16 @@ enum vpu_job_scheduling_priority_band {
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 */
+ /** Address of VPU commands batch buffer */
u64 batch_buf_addr;
- /**< Job ID */
+ /** Job ID */
u32 job_id;
- /**< Flags bit field, see VPU_JOB_FLAGS_* above */
+ /** Flags bit field, see VPU_JOB_FLAGS_* above */
u32 flags;
/**
* Doorbell ring timestamp taken by KMD from SoC's global system clock, in
@@ -237,20 +254,20 @@ struct vpu_job_queue_entry {
* to match other profiling timestamps.
*/
u64 doorbell_timestamp;
- /**< Extra id for job tracking, used only in the firmware perf traces */
+ /** 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 */
+ /** 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 */
+ /** 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 */
+ /** 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 */
+ /** 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
@@ -258,34 +275,36 @@ struct vpu_job_queue_entry {
*/
struct vpu_inline_cmd {
u64 reserved_0;
- /* Inline command type, see VPU_INLINE_CMD_TYPE_* defines. */
+ /** Inline command type, see VPU_INLINE_CMD_TYPE_* defines. */
u32 type;
- /* Flags bit field, see VPU_JOB_FLAGS_* above. */
+ /** 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. */
+ /** Inline command payload. Depends on inline command type. */
+ union payload {
+ /** Fence (wait and signal) commands' payload. */
+ struct fence {
+ /** Fence object handle. */
u64 fence_handle;
- /* User VA of the current fence value. */
+ /** User VA of the current fence value. */
u64 current_value_va;
- /* User VA of the monitored fence value (read-only). */
+ /** User VA of the monitored fence value (read-only). */
u64 monitored_value_va;
- /* Value to wait for or write in fence location. */
+ /** 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. */
+ /** User VA of the log buffer in which to add log entry on completion. */
u64 log_buffer_va;
- /* NPU private data. */
+ /** NPU private data. */
u64 npu_private_data;
} fence;
- /* Other commands do not have a payload. */
- /* Payload definition for future inline commands can be inserted here. */
+ /**
+ * 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 {
@@ -293,7 +312,7 @@ union vpu_jobq_slot {
struct vpu_inline_cmd inline_cmd;
};
-/*
+/**
* Job queue control registers.
*/
struct vpu_job_queue_header {
@@ -301,18 +320,18 @@ struct vpu_job_queue_header {
u32 head;
u32 tail;
u32 flags;
- /* Set to 1 to indicate priority_band field is valid */
+ /** 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
+ * and the @ref priority_band_valid is set to 1. It is applied only during
+ * the @ref 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 */
+ /** Inside realtime band assigns a further priority, limited to 0..31 range */
u32 realtime_priority_level;
u32 reserved_0[9];
};
@@ -337,16 +356,16 @@ enum vpu_trace_entity_type {
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. */
+ /** 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. */
+ /** 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.
*/
@@ -354,14 +373,14 @@ struct vpu_hws_log_buffer_header {
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) */
+ /** 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
@@ -371,7 +390,7 @@ struct vpu_hws_log_buffer_entry {
*/
u32 operation_type;
u32 reserved;
- /* Operation data depends on operation type */
+ /** Operation data depends on operation type */
u64 operation_data[2];
};
@@ -381,51 +400,54 @@ enum vpu_hws_native_fence_log_type {
VPU_HWS_NATIVE_FENCE_LOG_TYPE_SIGNALS = 2
};
-/* HWS native fence log buffer header. */
+/** HWS native fence log buffer header. */
struct vpu_hws_native_fence_log_header {
union {
struct {
- /* Index of the first free entry in buffer. */
+ /** 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. */
+ /**
+ * Incremented whenever the NPU wraps around the buffer and writes
+ * to the first entry again.
+ */
u32 wraparound_count;
};
- /* Field allowing atomic update of both fields above. */
+ /** 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. */
+ /** Log buffer type, see enum vpu_hws_native_fence_log_type. */
u64 type;
- /* Allocated number of entries in the log buffer. */
+ /** Allocated number of entries in the log buffer. */
u64 entry_nb;
u64 reserved[2];
};
-/* Native fence log operation types. */
+/** 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. */
+/** HWS native fence log entry. */
struct vpu_hws_native_fence_log_entry {
- /* Newly signaled/unblocked fence value. */
+ /** Newly signaled/unblocked fence value. */
u64 fence_value;
- /* Native fence object handle to which this operation belongs. */
+ /** Native fence object handle to which this operation belongs. */
u64 fence_handle;
- /* Operation type, see enum vpu_hws_native_fence_log_op. */
+ /** 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). */
+ /** Timestamp at which fence operation was completed (in NPU SysTime). */
u64 fence_end_ts;
};
-/* Native fence log buffer. */
+/** 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[];
@@ -435,10 +457,17 @@ struct vpu_hws_native_fence_log_buffer {
* Host <-> VPU IPC messages types.
*/
enum vpu_ipc_msg_type {
+ /** Unsupported command */
VPU_JSM_MSG_UNKNOWN = 0xFFFFFFFF,
- /* IPC Host -> Device, Async commands */
+ /** IPC Host -> Device, base id for async commands */
VPU_JSM_MSG_ASYNC_CMD = 0x1100,
+ /**
+ * Reset engine. The NPU cancels all the jobs currently executing on the target
+ * engine making the engine become idle and then does a HW reset, before returning
+ * to the host.
+ * @see struct vpu_ipc_msg_payload_engine_reset
+ */
VPU_JSM_MSG_ENGINE_RESET = VPU_JSM_MSG_ASYNC_CMD,
/**
* Preempt engine. The NPU stops (preempts) all the jobs currently
@@ -448,10 +477,24 @@ enum vpu_ipc_msg_type {
* 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.
+ * @see vpu_ipc_msg_payload_engine_preempt
*/
VPU_JSM_MSG_ENGINE_PREEMPT = 0x1101,
+ /**
+ * OS scheduling doorbell register command
+ * @see vpu_ipc_msg_payload_register_db
+ */
VPU_JSM_MSG_REGISTER_DB = 0x1102,
+ /**
+ * OS scheduling doorbell unregister command
+ * @see vpu_ipc_msg_payload_unregister_db
+ */
VPU_JSM_MSG_UNREGISTER_DB = 0x1103,
+ /**
+ * Query engine heartbeat. Heartbeat is expected to increase monotonically
+ * and increase while work is being progressed by NPU.
+ * @see vpu_ipc_msg_payload_query_engine_hb
+ */
VPU_JSM_MSG_QUERY_ENGINE_HB = 0x1104,
VPU_JSM_MSG_GET_POWER_LEVEL_COUNT = 0x1105,
VPU_JSM_MSG_GET_POWER_LEVEL = 0x1106,
@@ -477,6 +520,7 @@ enum vpu_ipc_msg_type {
* 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.
+ * @see vpu_ipc_msg_payload_ssid_release
*/
VPU_JSM_MSG_SSID_RELEASE = 0x110e,
/**
@@ -504,43 +548,78 @@ enum vpu_ipc_msg_type {
* @see vpu_jsm_metric_streamer_start
*/
VPU_JSM_MSG_METRIC_STREAMER_INFO = 0x1112,
- /** Control command: Priority band setup */
+ /**
+ * Control command: Priority band setup
+ * @see vpu_ipc_msg_payload_hws_priority_band_setup
+ */
VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP = 0x1113,
- /** Control command: Create command queue */
+ /**
+ * Control command: Create command queue
+ * @see vpu_ipc_msg_payload_hws_create_cmdq
+ */
VPU_JSM_MSG_CREATE_CMD_QUEUE = 0x1114,
- /** Control command: Destroy command queue */
+ /**
+ * Control command: Destroy command queue
+ * @see vpu_ipc_msg_payload_hws_destroy_cmdq
+ */
VPU_JSM_MSG_DESTROY_CMD_QUEUE = 0x1115,
- /** Control command: Set context scheduling properties */
+ /**
+ * Control command: Set context scheduling properties
+ * @see vpu_ipc_msg_payload_hws_set_context_sched_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.
+ * @see vpu_jsm_hws_register_db
*/
VPU_JSM_MSG_HWS_REGISTER_DB = 0x1117,
- /** Control command: Log buffer setting */
+ /**
+ * Control command: Log buffer setting
+ * @see vpu_ipc_msg_payload_hws_set_scheduling_log
+ */
VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG = 0x1118,
- /* Control command: Suspend command queue. */
+ /**
+ * Control command: Suspend command queue.
+ * @see vpu_ipc_msg_payload_hws_suspend_cmdq
+ */
VPU_JSM_MSG_HWS_SUSPEND_CMDQ = 0x1119,
- /* Control command: Resume command queue */
+ /**
+ * Control command: Resume command queue
+ * @see vpu_ipc_msg_payload_hws_resume_cmdq
+ */
VPU_JSM_MSG_HWS_RESUME_CMDQ = 0x111a,
- /* Control command: Resume engine after reset */
+ /**
+ * Control command: Resume engine after reset
+ * @see vpu_ipc_msg_payload_hws_resume_engine
+ */
VPU_JSM_MSG_HWS_ENGINE_RESUME = 0x111b,
- /* Control command: Enable survivability/DCT mode */
+ /**
+ * Control command: Enable survivability/DCT mode
+ * @see vpu_ipc_msg_payload_pwr_dct_control
+ */
VPU_JSM_MSG_DCT_ENABLE = 0x111c,
- /* Control command: Disable survivability/DCT mode */
+ /**
+ * Control command: Disable survivability/DCT mode
+ * This command has no payload
+ */
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. *
+ * This command has no payload.
+ * NOTE: Please introduce new ASYNC commands before this one.
*/
VPU_JSM_MSG_STATE_DUMP = 0x11FF,
- /* IPC Host -> Device, General commands */
+ /** IPC Host -> Device, base id for general commands */
VPU_JSM_MSG_GENERAL_CMD = 0x1200,
+ /** Unsupported command */
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`.
+ * Linux command:
+ * @verbatim echo '<dyndbg_cmd>' > <debugfs>/dynamic_debug/control @endverbatim
+ * @see vpu_ipc_msg_payload_dyndbg_control
*/
VPU_JSM_MSG_DYNDBG_CONTROL = 0x1201,
/**
@@ -548,17 +627,35 @@ enum vpu_ipc_msg_type {
*/
VPU_JSM_MSG_PWR_D0I3_ENTER = 0x1202,
- /* IPC Device -> Host, Job completion */
+ /**
+ * IPC Device -> Host, Job completion
+ * @see struct vpu_ipc_msg_payload_job_done
+ */
VPU_JSM_MSG_JOB_DONE = 0x2100,
- /* IPC Device -> Host, Fence signalled */
+ /**
+ * IPC Device -> Host, Fence signalled
+ * @see vpu_ipc_msg_payload_native_fence_signalled
+ */
VPU_JSM_MSG_NATIVE_FENCE_SIGNALLED = 0x2101,
/* IPC Device -> Host, Async command completion */
VPU_JSM_MSG_ASYNC_CMD_DONE = 0x2200,
+ /**
+ * IPC Device -> Host, engine reset complete
+ * @see vpu_ipc_msg_payload_engine_reset_done
+ */
VPU_JSM_MSG_ENGINE_RESET_DONE = VPU_JSM_MSG_ASYNC_CMD_DONE,
+ /**
+ * Preempt complete message
+ * @see vpu_ipc_msg_payload_engine_preempt_done
+ */
VPU_JSM_MSG_ENGINE_PREEMPT_DONE = 0x2201,
VPU_JSM_MSG_REGISTER_DB_DONE = 0x2202,
VPU_JSM_MSG_UNREGISTER_DB_DONE = 0x2203,
+ /**
+ * Response to query engine heartbeat.
+ * @see vpu_ipc_msg_payload_query_engine_hb_done
+ */
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,
@@ -575,7 +672,10 @@ enum vpu_ipc_msg_type {
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. */
+ /**
+ * Response to VPU_JSM_MSG_SSID_RELEASE.
+ * @see vpu_ipc_msg_payload_ssid_release
+ */
VPU_JSM_MSG_SSID_RELEASE_DONE = 0x220e,
/**
* Response to VPU_JSM_MSG_METRIC_STREAMER_START.
@@ -605,37 +705,71 @@ enum vpu_ipc_msg_type {
/**
* 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.
+ * @ref vpu_jsm_metric_streamer_start::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 */
+ /**
+ * Response to control command: Priority band setup
+ * @see vpu_ipc_msg_payload_hws_priority_band_setup
+ */
VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP_RSP = 0x2214,
- /** Response to control command: Create command queue */
+ /**
+ * Response to control command: Create command queue
+ * @see vpu_ipc_msg_payload_hws_create_cmdq_rsp
+ */
VPU_JSM_MSG_CREATE_CMD_QUEUE_RSP = 0x2215,
- /** Response to control command: Destroy command queue */
+ /**
+ * Response to control command: Destroy command queue
+ * @see vpu_ipc_msg_payload_hws_destroy_cmdq
+ */
VPU_JSM_MSG_DESTROY_CMD_QUEUE_RSP = 0x2216,
- /** Response to control command: Set context scheduling properties */
+ /**
+ * Response to control command: Set context scheduling properties
+ * @see vpu_ipc_msg_payload_hws_set_context_sched_properties
+ */
VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES_RSP = 0x2217,
- /** Response to control command: Log buffer setting */
+ /**
+ * Response to control command: Log buffer setting
+ * @see vpu_ipc_msg_payload_hws_set_scheduling_log
+ */
VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG_RSP = 0x2218,
- /* IPC Device -> Host, HWS notify index entry of log buffer written */
+ /**
+ * IPC Device -> Host, HWS notify index entry of log buffer written
+ * @see vpu_ipc_msg_payload_hws_scheduling_log_notification
+ */
VPU_JSM_MSG_HWS_SCHEDULING_LOG_NOTIFICATION = 0x2219,
- /* IPC Device -> Host, HWS completion of a context suspend request */
+ /**
+ * IPC Device -> Host, HWS completion of a context suspend request
+ * @see vpu_ipc_msg_payload_hws_suspend_cmdq
+ */
VPU_JSM_MSG_HWS_SUSPEND_CMDQ_DONE = 0x221a,
- /* Response to control command: Resume command queue */
+ /**
+ * Response to control command: Resume command queue
+ * @see vpu_ipc_msg_payload_hws_resume_cmdq
+ */
VPU_JSM_MSG_HWS_RESUME_CMDQ_RSP = 0x221b,
- /* Response to control command: Resume engine command response */
+ /**
+ * Response to control command: Resume engine command response
+ * @see vpu_ipc_msg_payload_hws_resume_engine
+ */
VPU_JSM_MSG_HWS_RESUME_ENGINE_DONE = 0x221c,
- /* Response to control command: Enable survivability/DCT mode */
+ /**
+ * Response to control command: Enable survivability/DCT mode
+ * This command has no payload
+ */
VPU_JSM_MSG_DCT_ENABLE_DONE = 0x221d,
- /* Response to control command: Disable survivability/DCT mode */
+ /**
+ * Response to control command: Disable survivability/DCT mode
+ * This command has no payload
+ */
VPU_JSM_MSG_DCT_DISABLE_DONE = 0x221e,
/**
* Response to state dump control command.
- * NOTE: Please introduce new ASYNC responses before this one. *
+ * This command has no payload.
+ * NOTE: Please introduce new ASYNC responses before this one.
*/
VPU_JSM_MSG_STATE_DUMP_RSP = 0x22FF,
@@ -653,57 +787,66 @@ enum vpu_ipc_msg_type {
enum vpu_ipc_msg_status { VPU_JSM_MSG_FREE, VPU_JSM_MSG_ALLOCATED };
-/*
- * Host <-> LRT IPC message payload definitions
+/**
+ * Engine reset request payload
+ * @see VPU_JSM_MSG_ENGINE_RESET
*/
struct vpu_ipc_msg_payload_engine_reset {
- /* Engine to be reset. */
+ /** Engine to be reset. */
u32 engine_idx;
- /* Reserved */
+ /** Reserved */
u32 reserved_0;
};
+/**
+ * Engine preemption request struct
+ * @see VPU_JSM_MSG_ENGINE_PREEMPT
+ */
struct vpu_ipc_msg_payload_engine_preempt {
- /* Engine to be preempted. */
+ /** Engine to be preempted. */
u32 engine_idx;
- /* ID of the preemption request. */
+ /** ID of the preemption request. */
u32 preempt_id;
};
-/*
- * @brief Register doorbell command structure.
+/**
+ * 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. */
+ /** Index of the doorbell to register. */
u32 db_idx;
- /* Reserved */
+ /** Reserved */
u32 reserved_0;
- /* Virtual address in Global GTT pointing to the start of job queue. */
+ /** Virtual address in Global GTT pointing to the start of job queue. */
u64 jobq_base;
- /* Size of the job queue in bytes. */
+ /** Size of the job queue in bytes. */
u32 jobq_size;
- /* Host sub-stream ID for the context assigned to the doorbell. */
+ /** Host sub-stream ID for the context assigned to the doorbell. */
u32 host_ssid;
};
/**
- * @brief Unregister doorbell command structure.
+ * 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. */
+ /** Index of the doorbell to unregister. */
u32 db_idx;
- /* Reserved */
+ /** Reserved */
u32 reserved_0;
};
+/**
+ * Heartbeat request structure
+ * @see VPU_JSM_MSG_QUERY_ENGINE_HB
+ */
struct vpu_ipc_msg_payload_query_engine_hb {
- /* Engine to return heartbeat value. */
+ /** Engine to return heartbeat value. */
u32 engine_idx;
- /* Reserved */
+ /** Reserved */
u32 reserved_0;
};
@@ -723,10 +866,14 @@ struct vpu_ipc_msg_payload_power_level {
u32 reserved_0;
};
+/**
+ * Structure for requesting ssid release
+ * @see VPU_JSM_MSG_SSID_RELEASE
+ */
struct vpu_ipc_msg_payload_ssid_release {
- /* Host sub-stream ID for the context to be released. */
+ /** Host sub-stream ID for the context to be released. */
u32 host_ssid;
- /* Reserved */
+ /** Reserved */
u32 reserved_0;
};
@@ -752,7 +899,7 @@ struct vpu_jsm_metric_streamer_start {
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.
+ * after every @ref 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.
*/
@@ -762,9 +909,9 @@ struct vpu_jsm_metric_streamer_start {
* 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.
+ * will switch to the next buffer (@ref next_buffer_addr) and will optionally
+ * send a notification to the host driver if @ref notify_sample_count is non-zero.
+ * If @ref next_buffer_addr is NULL the VPU will stop collecting metric data.
*/
u64 buffer_addr;
u64 buffer_size;
@@ -827,63 +974,80 @@ struct vpu_jsm_metric_streamer_update {
u64 next_buffer_size;
};
+/**
+ * Device -> host job completion message.
+ * @see VPU_JSM_MSG_JOB_DONE
+ */
struct vpu_ipc_msg_payload_job_done {
- /* Engine to which the job was submitted. */
+ /** Engine to which the job was submitted. */
u32 engine_idx;
- /* Index of the doorbell to which the job was submitted */
+ /** Index of the doorbell to which the job was submitted */
u32 db_idx;
- /* ID of the completed job */
+ /** ID of the completed job */
u32 job_id;
- /* Status of the completed job */
+ /** Status of the completed job */
u32 job_status;
- /* Host SSID */
+ /** Host SSID */
u32 host_ssid;
- /* Zero Padding */
+ /** Zero Padding */
u32 reserved_0;
- /* Command queue id */
+ /** 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. */
+ /** Engine ID. */
u32 engine_idx;
- /* Host SSID. */
+ /** Host SSID. */
u32 host_ssid;
- /* CMDQ ID */
+ /** CMDQ ID */
u64 cmdq_id;
- /* Fence object handle. */
+ /** Fence object handle. */
u64 fence_handle;
};
+/**
+ * vpu_ipc_msg_payload_engine_reset_done will contain an array of this structure
+ * which contains which queues caused reset if FW was able to detect any error.
+ * @see vpu_ipc_msg_payload_engine_reset_done
+ */
struct vpu_jsm_engine_reset_context {
- /* Host SSID */
+ /** Host SSID */
u32 host_ssid;
- /* Zero Padding */
+ /** Zero Padding */
u32 reserved_0;
- /* Command queue id */
+ /** Command queue id */
u64 cmdq_id;
- /* See VPU_ENGINE_RESET_CONTEXT_* defines */
+ /** See VPU_ENGINE_RESET_CONTEXT_* defines */
u64 flags;
};
+/**
+ * Engine reset response.
+ * @see VPU_JSM_MSG_ENGINE_RESET_DONE
+ */
struct vpu_ipc_msg_payload_engine_reset_done {
- /* Engine ordinal */
+ /** Engine ordinal */
u32 engine_idx;
- /* Number of impacted contexts */
+ /** Number of impacted contexts */
u32 num_impacted_contexts;
- /* Array of impacted command queue ids and their flags */
+ /** Array of impacted command queue ids and their flags */
struct vpu_jsm_engine_reset_context
impacted_contexts[VPU_MAX_ENGINE_RESET_IMPACTED_CONTEXTS];
};
+/**
+ * Preemption response struct
+ * @see VPU_JSM_MSG_ENGINE_PREEMPT_DONE
+ */
struct vpu_ipc_msg_payload_engine_preempt_done {
- /* Engine preempted. */
+ /** Engine preempted. */
u32 engine_idx;
- /* ID of the preemption request. */
+ /** ID of the preemption request. */
u32 preempt_id;
};
@@ -912,12 +1076,16 @@ struct vpu_ipc_msg_payload_unregister_db_done {
u32 reserved_0;
};
+/**
+ * Structure for heartbeat response
+ * @see VPU_JSM_MSG_QUERY_ENGINE_HB_DONE
+ */
struct vpu_ipc_msg_payload_query_engine_hb_done {
- /* Engine returning heartbeat value. */
+ /** Engine returning heartbeat value. */
u32 engine_idx;
- /* Reserved */
+ /** Reserved */
u32 reserved_0;
- /* Heartbeat value. */
+ /** Heartbeat value. */
u64 heartbeat;
};
@@ -937,7 +1105,10 @@ struct vpu_ipc_msg_payload_get_power_level_count_done {
u8 power_limit[16];
};
-/* HWS priority band setup request / response */
+/**
+ * HWS priority band setup request / response
+ * @see VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP
+ */
struct vpu_ipc_msg_payload_hws_priority_band_setup {
/*
* Grace period in 100ns units when preempting another priority band for
@@ -964,15 +1135,23 @@ struct vpu_ipc_msg_payload_hws_priority_band_setup {
* TDR timeout value in milliseconds. Default value of 0 meaning no timeout.
*/
u32 tdr_timeout;
+ /* Non-interactive queue timeout for no progress of heartbeat in milliseconds.
+ * Default value of 0 meaning no timeout.
+ */
+ u32 non_interactive_no_progress_timeout;
+ /*
+ * Non-interactive queue upper limit timeout value in milliseconds. Default
+ * value of 0 meaning no timeout.
+ */
+ u32 non_interactive_timeout;
};
-/*
+/**
* @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 */
@@ -993,66 +1172,73 @@ struct vpu_ipc_msg_payload_hws_create_cmdq {
u32 reserved_0;
};
-/*
- * @brief HWS create command queue response.
- * @see VPU_JSM_MSG_CREATE_CMD_QUEUE
+/**
+ * HWS create command queue response.
* @see VPU_JSM_MSG_CREATE_CMD_QUEUE_RSP
*/
struct vpu_ipc_msg_payload_hws_create_cmdq_rsp {
- /* Process id */
+ /** Process id */
u64 process_id;
- /* Host SSID */
+ /** Host SSID */
u32 host_ssid;
- /* Engine for which queue is being created */
+ /** Engine for which queue is being created */
u32 engine_idx;
- /* Command queue group */
+ /** Command queue group */
u64 cmdq_group;
- /* Command queue id */
+ /** Command queue id */
u64 cmdq_id;
};
-/* HWS destroy command queue request / response */
+/**
+ * HWS destroy command queue request / response
+ * @see VPU_JSM_MSG_DESTROY_CMD_QUEUE
+ * @see VPU_JSM_MSG_DESTROY_CMD_QUEUE_RSP
+ */
struct vpu_ipc_msg_payload_hws_destroy_cmdq {
- /* Host SSID */
+ /** Host SSID */
u32 host_ssid;
- /* Zero Padding */
+ /** Zero Padding */
u32 reserved;
- /* Command queue id */
+ /** Command queue id */
u64 cmdq_id;
};
-/* HWS set context scheduling properties request / response */
+/**
+ * HWS set context scheduling properties request / response
+ * @see VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES
+ * @see VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES_RSP
+ */
struct vpu_ipc_msg_payload_hws_set_context_sched_properties {
- /* Host SSID */
+ /** Host SSID */
u32 host_ssid;
- /* Zero Padding */
+ /** Zero Padding */
u32 reserved_0;
- /* Command queue id */
+ /** 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 */
+ /** Inside realtime band assigns a further priority */
u32 realtime_priority_level;
- /* Priority relative to other contexts in the same process */
+ /** Priority relative to other contexts in the same process */
s32 in_process_priority;
- /* Zero padding / Reserved */
+ /** Zero padding / Reserved */
u32 reserved_1;
- /*
+ /**
* Context quantum relative to other contexts of same priority in the same process
* Minimum value supported by NPU is 1ms (10000 in 100ns units).
*/
u64 context_quantum;
- /* Grace period when preempting context of the same priority within the same process */
+ /** 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 */
+ /** Grace period when preempting context of a lower priority within the same process */
u64 grace_period_lower_priority;
};
-/*
- * @brief Register doorbell command structure.
+/**
+ * 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
@@ -1061,27 +1247,27 @@ struct vpu_ipc_msg_payload_hws_set_context_sched_properties {
* @see VPU_JSM_MSG_HWS_REGISTER_DB
*/
struct vpu_jsm_hws_register_db {
- /* Index of the doorbell to register. */
+ /** Index of the doorbell to register. */
u32 db_id;
- /* Host sub-stream ID for the context assigned to the doorbell. */
+ /** Host sub-stream ID for the context assigned to the doorbell. */
u32 host_ssid;
- /* ID of the command queue associated with the doorbell. */
+ /** ID of the command queue associated with the doorbell. */
u64 cmdq_id;
- /* Virtual address pointing to the start of command queue. */
+ /** Virtual address pointing to the start of command queue. */
u64 cmdq_base;
- /* Size of the command queue in bytes. */
+ /** Size of the command queue in bytes. */
u64 cmdq_size;
};
-/*
- * @brief Structure to set another buffer to be used for scheduling-related logging.
+/**
+ * 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'.
+ * - header: 32 bytes in size, as shown in @ref 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'.
+ * @ref 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
@@ -1095,30 +1281,30 @@ struct vpu_jsm_hws_register_db {
* @see VPU_JSM_MSG_HWS_SCHEDULING_LOG_NOTIFICATION
*/
struct vpu_ipc_msg_payload_hws_set_scheduling_log {
- /* Engine ordinal */
+ /** Engine ordinal */
u32 engine_idx;
- /* Host SSID */
+ /** 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 */
+ /** Zero Padding */
u32 reserved_0;
};
-/*
- * @brief The scheduling log notification is generated by VPU when it writes
+/**
+ * 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.
@@ -1126,14 +1312,14 @@ struct vpu_ipc_msg_payload_hws_set_scheduling_log {
* @see VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG
*/
struct vpu_ipc_msg_payload_hws_scheduling_log_notification {
- /* Engine ordinal */
+ /** Engine ordinal */
u32 engine_idx;
- /* Zero Padding */
+ /** Zero Padding */
u32 reserved_0;
};
-/*
- * @brief HWS suspend command queue request and done structure.
+/**
+ * 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
@@ -1152,21 +1338,21 @@ struct vpu_ipc_msg_payload_hws_scheduling_log_notification {
* @see VPU_JSM_MSG_HWS_SUSPEND_CMDQ_DONE
*/
struct vpu_ipc_msg_payload_hws_suspend_cmdq {
- /* Host SSID */
+ /** Host SSID */
u32 host_ssid;
- /* Zero Padding */
+ /** Zero Padding */
u32 reserved_0;
- /* Command queue id */
+ /** 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.
+/**
+ * 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
@@ -1174,25 +1360,25 @@ struct vpu_ipc_msg_payload_hws_suspend_cmdq {
* @see VPU_JSM_MSG_HWS_RESUME_CMDQ_RSP
*/
struct vpu_ipc_msg_payload_hws_resume_cmdq {
- /* Host SSID */
+ /** Host SSID */
u32 host_ssid;
- /* Zero Padding */
+ /** Zero Padding */
u32 reserved_0;
- /* Command queue id */
+ /** 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.
+/**
+ * HWS Resume engine request / response structure.
+ * After a HWS engine reset, all scheduling is stopped on VPU until an 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_ENGINE_RESUME
* @see VPU_JSM_MSG_HWS_RESUME_ENGINE_DONE
*/
struct vpu_ipc_msg_payload_hws_resume_engine {
- /* Engine to be resumed */
+ /** Engine to be resumed */
u32 engine_idx;
- /* Reserved */
+ /** Reserved */
u32 reserved_0;
};
@@ -1326,7 +1512,7 @@ struct vpu_jsm_metric_streamer_done {
/**
* 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.
+ * @ref vpu_jsm_metric_counter_descriptor records.
* @see VPU_JSM_MSG_METRIC_STREAMER_INFO
*/
struct vpu_jsm_metric_group_descriptor {
@@ -1413,29 +1599,24 @@ struct vpu_jsm_metric_counter_descriptor {
};
/**
- * Payload for VPU_JSM_MSG_DYNDBG_CONTROL requests.
+ * Payload for @ref 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.
+ * VPU_JSM_MSG_DYNDBG_CONTROL requests are used to control the VPU FW dynamic debug
+ * feature, which allows developers to selectively enable/disable code to obtain
+ * additional FW information. This is equivalent to the dynamic debug functionality
+ * provided by Linux. The host can control dynamic debug behavior by sending dyndbg
+ * commands, using the same syntax as for Linux dynamic debug 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.
+ * @see https://www.kernel.org/doc/html/latest/admin-guide/dynamic-debug-howto.html.
*
- * 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.
+ * NOTE:
+ * As the dynamic debug feature uses MVLOG messages to provide information, the host
+ * must first set the logging level to MVLOG_DEBUG, using the @ref VPU_JSM_MSG_TRACE_SET_CONFIG
+ * command.
*/
struct vpu_ipc_msg_payload_dyndbg_control {
/**
- * Dyndbg command (same format as Linux dyndbg); must be a NULL-terminated
- * string.
+ * Dyndbg command to be executed.
*/
char dyndbg_cmd[VPU_DYNDBG_CMD_MAX_LEN];
};
@@ -1456,7 +1637,7 @@ struct vpu_ipc_msg_payload_pwr_d0i3_enter {
};
/**
- * Payload for VPU_JSM_MSG_DCT_ENABLE message.
+ * Payload for @ref 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
@@ -1513,28 +1694,28 @@ union vpu_ipc_msg_payload {
struct vpu_ipc_msg_payload_pwr_dct_control pwr_dct_control;
};
-/*
- * Host <-> LRT IPC message base structure.
+/**
+ * Host <-> NPU 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 */
+ /** Reserved */
u64 reserved_0;
- /* Message type, see vpu_ipc_msg_type enum. */
+ /** Message type, see @ref vpu_ipc_msg_type. */
u32 type;
- /* Buffer status, see vpu_ipc_msg_status enum. */
+ /** Buffer status, see @ref vpu_ipc_msg_status. */
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. */
+ /** 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. */
+ /** Message payload depending on message type, see vpu_ipc_msg_payload union. */
union vpu_ipc_msg_payload payload;
};