score/src/profilingisrentryexit.c

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /**
0004  * @file
0005  *
0006  * @ingroup RTEMSScoreProfiling
0007  *
0008  * @brief This source file contains the implementation of
0009  *   _Profiling_Outer_most_interrupt_entry_and_exit().
0010  */
0011
0012 /*
0013  * Copyright (C) 2014, 2016 embedded brains GmbH & Co. KG
0014  *
0015  * Redistribution and use in source and binary forms, with or without
0016  * modification, are permitted provided that the following conditions
0017  * are met:
0018  * 1. Redistributions of source code must retain the above copyright
0019  *    notice, this list of conditions and the following disclaimer.
0020  * 2. Redistributions in binary form must reproduce the above copyright
0021  *    notice, this list of conditions and the following disclaimer in the
0022  *    documentation and/or other materials provided with the distribution.
0023  *
0024  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0025  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0026  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0027  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0028  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0029  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0030  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0031  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0032  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0033  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0034  * POSSIBILITY OF SUCH DAMAGE.
0035  */
0036
0037 #ifdef HAVE_CONFIG_H
0038 #include "config.h"
0039 #endif
0040
0041 #include <rtems/score/profiling.h>
0042 #include <rtems/score/assert.h>
0043
0044 void _Profiling_Outer_most_interrupt_entry_and_exit(
0045   Per_CPU_Control *cpu,
0046   CPU_Counter_ticks interrupt_entry_instant,
0047   CPU_Counter_ticks interrupt_exit_instant
0048 )
0049 {
0050 #if defined(RTEMS_PROFILING)
0051   Per_CPU_Stats     *stats;
0052   CPU_Counter_ticks  delta;
0053
0054   _Assert( cpu->isr_nest_level == 1 );
0055
0056   stats = &cpu->Stats;
0057   delta = interrupt_exit_instant - interrupt_entry_instant;
0058   ++stats->interrupt_count;
0059   stats->total_interrupt_time += delta;
0060
0061   if ( stats->max_interrupt_time < delta ) {
0062     stats->max_interrupt_time = delta;
0063   }
0064
0065   if ( cpu->thread_dispatch_disable_level == 1 ) {
0066     stats->thread_dispatch_disabled_instant = interrupt_entry_instant;
0067   }
0068 #else
0069   (void) cpu;
0070   (void) interrupt_entry_instant;
0071   (void) interrupt_exit_instant;
0072 #endif
0073 }