From e0dd8a5ad830798bc8082b03b8c42c32fb9660e0 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Fri, 20 Apr 2018 12:08:42 +0200 Subject: bsps: Move benchmark timer to bsps This patch is a part of the BSP source reorganization. Update #3285. --- bsps/riscv/riscv_generic/btimer/btimer.c | 70 ++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 bsps/riscv/riscv_generic/btimer/btimer.c (limited to 'bsps/riscv') diff --git a/bsps/riscv/riscv_generic/btimer/btimer.c b/bsps/riscv/riscv_generic/btimer/btimer.c new file mode 100644 index 0000000000..4dd3193685 --- /dev/null +++ b/bsps/riscv/riscv_generic/btimer/btimer.c @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2015 University of York. + * Hesham Almatary + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +#include +#include +#include + +extern char bsp_start_vector_table_begin[]; + +bool benchmark_timer_find_average_overhead; + +static void benchmark_timer1_interrupt_handler(void) +{ +} + +/* Start eCore tiemr 1 usef for profiling and timing analysis */ +void benchmark_timer_initialize( void ) +{ + /* Install interrupt handler for timer 1 */ +} + +/* + * The following controls the behavior of benchmark_timer_read(). + * + * AVG_OVEREHAD is the overhead for starting and stopping the timer. It + * is usually deducted from the number returned. + * + * LEAST_VALID is the lowest number this routine should trust. Numbers + * below this are "noise" and zero is returned. + */ + +#define AVG_OVERHEAD 0 /* It typically takes X.X microseconds */ +/* (Y countdowns) to start/stop the timer. */ +/* This value is in microseconds. */ +#define LEAST_VALID 1 /* Don't trust a clicks value lower than this */ + +benchmark_timer_t benchmark_timer_read( void ) +{ +} + +void benchmark_timer_disable_subtracting_average_overhead( + bool find_flag +) +{ + benchmark_timer_find_average_overhead = find_flag; +} -- cgit v1.2.3