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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Thread */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
#define TX_THREAD_SMP_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_initialize.h"
#include "tx_timer.h"
#include "tx_thread.h"
/* Determine if debugging is enabled. */
#ifdef TX_THREAD_SMP_DEBUG_ENABLE
/* Define the maximum number of debug entries. */
#ifndef TX_THREAD_SMP_MAX_DEBUG_ENTRIES
#define TX_THREAD_SMP_MAX_DEBUG_ENTRIES 100
#endif
/* Define the debug information structures. */
typedef struct TX_THREAD_SMP_DEBUG_ENTRY_STRUCT
{
ULONG tx_thread_smp_debug_entry_id;
ULONG tx_thread_smp_debug_entry_suspend;
ULONG tx_thread_smp_debug_entry_core_index;
ULONG tx_thread_smp_debug_entry_time;
ULONG tx_thread_smp_debug_entry_timer_clock;
TX_THREAD *tx_thread_smp_debug_entry_thread;
UINT tx_thread_smp_debug_entry_thread_priority;
UINT tx_thread_smp_debug_entry_thread_threshold;
ULONG tx_thread_smp_debug_entry_thread_core_control;
TX_THREAD *tx_thread_smp_debug_entry_current_thread;
TX_THREAD_SMP_PROTECT tx_thread_smp_debug_protection;
ULONG tx_thread_smp_debug_entry_preempt_disable;
ULONG tx_thread_smp_debug_entry_system_state[TX_THREAD_SMP_MAX_CORES];
#ifndef TX_DISABLE_PREEMPTION_THRESHOLD
ULONG tx_thread_smp_debug_entry_preempt_map;
#endif
TX_THREAD *tx_thread_smp_debug_entry_preempt_thread;
ULONG tx_thread_smp_debug_entry_priority_map;
ULONG tx_thread_smp_debug_entry_reschedule_pending;
TX_THREAD *tx_thread_smp_debug_entry_current_threads[TX_THREAD_SMP_MAX_CORES];
TX_THREAD *tx_thread_smp_debug_entry_execute_threads[TX_THREAD_SMP_MAX_CORES];
} TX_THREAD_SMP_DEBUG_ENTRY_INFO;
/* Define the circular array of debug entries. */
TX_THREAD_SMP_DEBUG_ENTRY_INFO _tx_thread_smp_debug_info_array[TX_THREAD_SMP_MAX_DEBUG_ENTRIES];
/* Define the starting index. */
ULONG _tx_thread_smp_debug_info_current_index;
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_thread_smp_debug_entry_insert PORTABLE SMP */
/* 6.1 */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function is responsible for making an entry in the circular */
/* debug log. */
/* */
/* INPUT */
/* */
/* id ID of event */
/* suspend Flag set to true for suspend */
/* events */
/* thread_ptr Specified thread */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _tx_thread_smp_time_get Get global time stamp */
/* */
/* CALLED BY */
/* */
/* Internal routines */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 William E. Lamie Initial Version 6.1 */
/* */
/**************************************************************************/
void _tx_thread_smp_debug_entry_insert(ULONG id, ULONG suspend, VOID *thread_void_ptr)
{
ULONG i;
ULONG core_index;
TX_THREAD_SMP_DEBUG_ENTRY_INFO *entry_ptr;
TX_THREAD *thread_ptr;
/* Spin, if an error is detected. No sense in populating the debug after the error occurs. */
while (_tx_thread_smp_system_error)
{
/* Spin here! */
}
/* Check for a bad current index. */
while (_tx_thread_smp_debug_info_current_index >= TX_THREAD_SMP_MAX_DEBUG_ENTRIES)
{
/* Spin here! */
}
thread_ptr = (TX_THREAD *) thread_void_ptr;
/* It is assumed that interrupts are locked out at this point. */
/* Setup pointer to debug entry. */
entry_ptr = &_tx_thread_smp_debug_info_array[_tx_thread_smp_debug_info_current_index++];
/* Check for wrap on the index. */
if (_tx_thread_smp_debug_info_current_index >= TX_THREAD_SMP_MAX_DEBUG_ENTRIES)
{
/* Wrap back to 0. */
_tx_thread_smp_debug_info_current_index = 0;
}
/* Get the index. */
core_index = TX_SMP_CORE_ID;
/* We know at this point that multithreading and interrupts are disabled... so start populating the array. */
entry_ptr -> tx_thread_smp_debug_entry_id = id;
entry_ptr -> tx_thread_smp_debug_entry_suspend = suspend;
entry_ptr -> tx_thread_smp_debug_entry_thread = thread_ptr;
entry_ptr -> tx_thread_smp_debug_entry_time = _tx_thread_smp_time_get();
entry_ptr -> tx_thread_smp_debug_entry_timer_clock = _tx_timer_system_clock;
entry_ptr -> tx_thread_smp_debug_entry_core_index = core_index;
entry_ptr -> tx_thread_smp_debug_entry_current_thread = _tx_thread_current_ptr[core_index];
if (entry_ptr -> tx_thread_smp_debug_entry_current_thread)
{
entry_ptr -> tx_thread_smp_debug_entry_thread_priority = (entry_ptr -> tx_thread_smp_debug_entry_current_thread) -> tx_thread_priority;
entry_ptr -> tx_thread_smp_debug_entry_thread_threshold = (entry_ptr -> tx_thread_smp_debug_entry_current_thread) -> tx_thread_preempt_threshold;
entry_ptr -> tx_thread_smp_debug_entry_thread_core_control = (entry_ptr -> tx_thread_smp_debug_entry_current_thread) -> tx_thread_smp_core_control;
}
else
{
entry_ptr -> tx_thread_smp_debug_entry_thread_priority = 0;
entry_ptr -> tx_thread_smp_debug_entry_thread_threshold = 0;
entry_ptr -> tx_thread_smp_debug_entry_thread_core_control = 0;
}
entry_ptr -> tx_thread_smp_debug_protection = _tx_thread_smp_protection;
entry_ptr -> tx_thread_smp_debug_entry_preempt_disable = _tx_thread_preempt_disable;
#ifndef TX_DISABLE_PREEMPTION_THRESHOLD
entry_ptr -> tx_thread_smp_debug_entry_preempt_map = _tx_thread_preempted_maps[0];
#endif
entry_ptr -> tx_thread_smp_debug_entry_preempt_thread = _tx_thread_preemption__threshold_scheduled;
entry_ptr -> tx_thread_smp_debug_entry_priority_map = _tx_thread_priority_maps[0];
#ifndef TX_THREAD_SMP_DYNAMIC_CORE_MAX
/* Loop to save the current and execute lists. */
for (i = 0; i < TX_THREAD_SMP_MAX_CORES; i++)
#else
/* Loop to save the current and execute lists. */
for (i = 0; i < _tx_thread_smp_max_cores; i++)
#endif
{
/* Save the pointers. */
entry_ptr -> tx_thread_smp_debug_entry_current_threads[i] = _tx_thread_current_ptr[i];
entry_ptr -> tx_thread_smp_debug_entry_execute_threads[i] = _tx_thread_execute_ptr[i];
/* Save the system state. */
entry_ptr -> tx_thread_smp_debug_entry_system_state[i] = _tx_thread_system_state[i];
}
}
#endif
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