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authorSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-20 12:08:42 +0200
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-04-20 13:52:19 +0200
commite0dd8a5ad830798bc8082b03b8c42c32fb9660e0 (patch)
treed147bfc4d670fcdfbd2e2d2e75eb209f92e07df1 /c/src/lib/libbsp/epiphany
parentbsps: Move startup files to bsps (diff)
downloadrtems-e0dd8a5ad830798bc8082b03b8c42c32fb9660e0.tar.bz2
bsps: Move benchmark timer to bsps
This patch is a part of the BSP source reorganization. Update #3285.
Diffstat (limited to 'c/src/lib/libbsp/epiphany')
-rw-r--r--c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am2
-rw-r--r--c/src/lib/libbsp/epiphany/epiphany_sim/timer/timer.c109
2 files changed, 1 insertions, 110 deletions
diff --git a/c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am b/c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am
index 634d7ac546..271dc7f089 100644
--- a/c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am
+++ b/c/src/lib/libbsp/epiphany/epiphany_sim/Makefile.am
@@ -45,7 +45,7 @@ librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/start/bspgetworkarea-defa
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/clock/clock-simidle.c
# Timer
-librtemsbsp_a_SOURCES += timer/timer.c
+librtemsbsp_a_SOURCES += ../../../../../../bsps/epiphany/epiphany_sim/btimer/btimer.c
# console
librtemsbsp_a_SOURCES += ../../../../../../bsps/shared/dev/serial/console-polled.c
diff --git a/c/src/lib/libbsp/epiphany/epiphany_sim/timer/timer.c b/c/src/lib/libbsp/epiphany/epiphany_sim/timer/timer.c
deleted file mode 100644
index 5df9448e01..0000000000
--- a/c/src/lib/libbsp/epiphany/epiphany_sim/timer/timer.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright (c) 2015 University of York.
- * Hesham ALMatary <hmka501@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/epiphany-utility.h>
-
-extern char bsp_start_vector_table_begin[];
-
-bool benchmark_timer_find_average_overhead;
-
-static void benchmark_timer1_interrupt_handler(void)
-{
- unsigned int val = 0xFFFFFFFF;
- unsigned int event_type = 0x1;
-
- /* Embed assembly code for setting timer1 */
- __asm__ __volatile__ ("movts ctimer1, %[val] \t \n" :: [val] "r" (val));
-
- __asm__ __volatile__ ("movfs r16, config; \t \n"
- "mov r17, %%low(0xfffff0ff);\t \n"
- "movt r17, %%high(0xffff0ff);\t \n"
- "lsl r18, %[event_type], 0x8; \t \n"
- "and r16, r16, r17; \t \n"
- "orr r16, r16, r18; \t \n"
- "movts config, r16; \t \n"
- :: [event_type] "r" (event_type));
-}
-
-/* Start eCore tiemr 1 usef for profiling and timing analysis */
-void benchmark_timer_initialize( void )
-{
- /* Install interrupt handler for timer 1 */
-
- proc_ptr *table =
- (proc_ptr *) bsp_start_vector_table_begin;
-
- table[TIMER1] = benchmark_timer1_interrupt_handler;
-
- benchmark_timer1_interrupt_handler();
-}
-
-/*
- * 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 )
-{
- uint32_t timer_val = 0;
- uint32_t total;
-
- __asm__ __volatile__ ("movfs %[timer_val], ctimer1 \t \n"
- :[timer_val] "=r" (timer_val):);
-
- total = (0xFFFFFFFF - timer_val);
-
- if ( benchmark_timer_find_average_overhead == true )
- return total;
- else {
- if ( total < LEAST_VALID )
- return 0; /* below timer resolution */
- /*
- * Somehow convert total into microseconds
- */
- return (total - AVG_OVERHEAD);
- }
-}
-
-void benchmark_timer_disable_subtracting_average_overhead(
- bool find_flag
-)
-{
- benchmark_timer_find_average_overhead = find_flag;
-}