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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-20 12:08:42 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2018-04-20 13:52:19 +0200 |
commit | e0dd8a5ad830798bc8082b03b8c42c32fb9660e0 (patch) | |
tree | d147bfc4d670fcdfbd2e2d2e75eb209f92e07df1 /bsps/riscv | |
parent | bsps: Move startup files to bsps (diff) | |
download | rtems-e0dd8a5ad830798bc8082b03b8c42c32fb9660e0.tar.bz2 |
bsps: Move benchmark timer to bsps
This patch is a part of the BSP source reorganization.
Update #3285.
Diffstat (limited to 'bsps/riscv')
-rw-r--r-- | bsps/riscv/riscv_generic/btimer/btimer.c | 70 |
1 files changed, 70 insertions, 0 deletions
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 <hesham@alumni.york.ac.uk> + * + * 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 <rtems.h> +#include <bsp.h> +#include <rtems/btimer.h> +#include <rtems/score/riscv-utility.h> + +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; +} |