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adds smp tx_timer_interrupt

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Eyck-Alexander Jentzsch
2026-03-12 16:15:57 +01:00
parent c390c4b8db
commit ebe891dad6
2 changed files with 130 additions and 0 deletions
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1
port/threadx_smp/CMakeLists.txt
View File

@@ -27,6 +27,7 @@ set(THREADX_SMP_CUSTOM_SRC
src/tx_thread_smp_unprotect.S
src/tx_thread_stack_build.S
src/tx_thread_system_return.S
src/tx_timer_interrupt.c
)
threadx_smp_add_offsets(

129
port/threadx_smp/src/tx_timer_interrupt.c Normal file
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@@ -0,0 +1,129 @@
/***************************************************************************
* 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 */
/** */
/** Timer */
/** */
/**************************************************************************/
/**************************************************************************/
#define TX_SOURCE_CODE
#define TX_THREAD_SMP_SOURCE_CODE
/* Include necessary system files. */
#include "tx_api.h"
#include "tx_thread.h"
#include "tx_timer.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _tx_timer_interrupt RISC-V64/GNU */
/* 6.2.1 */
/* AUTHOR */
/* */
/* Scott Larson, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function processes the hardware timer interrupt. This */
/* processing includes incrementing the system clock and checking for */
/* time slice and/or timer expiration. If either is found, the */
/* interrupt context save/restore functions are called along with the */
/* expiration functions. */
/* */
/* INPUT */
/* */
/* None */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* _tx_timer_expiration_process Timer expiration processing */
/* _tx_thread_time_slice Time slice interrupted thread */
/* */
/* CALLED BY */
/* */
/* interrupt vector */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 03-08-2023 Scott Larson Initial Version 6.2.1 */
/* */
/**************************************************************************/
VOID _tx_timer_interrupt(VOID)
{
UINT saved_posture;
/* Only core 0 advances the global timer wheel. */
if (TX_SMP_CORE_ID != ((UINT) 0))
{
return;
}
/* Get the protection. */
saved_posture = _tx_thread_smp_protect();
/* Indicate timer interrupt processing is active. */
_tx_timer_interrupt_active++;
/* Increment system clock. */
_tx_timer_system_clock++;
/* Test for timer expiration. */
if (*_tx_timer_current_ptr)
{
/* Set expiration flag. */
_tx_timer_expired = TX_TRUE;
}
else
{
/* No timer expired, increment the timer pointer. */
_tx_timer_current_ptr++;
/* Check for wrap-around. */
if (_tx_timer_current_ptr == _tx_timer_list_end)
{
/* Wrap to beginning of list. */
_tx_timer_current_ptr = _tx_timer_list_start;
}
}
/* Did a timer expire? */
if (_tx_timer_expired)
{
/* Process timer expiration. */
_tx_timer_expiration_process();
}
/* Process time-slice expiration for all cores. */
_tx_thread_time_slice();
/* Timer interrupt processing is no longer active. */
_tx_timer_interrupt_active--;
/* Release the protection. */
_tx_thread_smp_unprotect(saved_posture);
}