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/*
* Copyright (c) 2009 Openmoko Inc.
*
* Authors Marek Lindner
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
*
*/
#include <profile.h>
#include <tick.h>
#include <string.h>
#include <msg.h>
#include <delay.h>
#include <regs.h>
#include <samo.h>
#if PROFILER_ON
struct prof_container prof_container[PROF_COUNT];
static const char *prof_to_string[] = { PROF_TO_STRING };
void profile_init(void)
{
memset(&prof_container, 0, sizeof(prof_container));
}
void prof_start(unsigned long index)
{
prof_container[index].start_time = Tick_get();
}
void prof_stop(unsigned long index)
{
unsigned long tmp_tick = Tick_get();
prof_container[index].calls++;
prof_container[index].total_time += tmp_tick - prof_container[index].start_time;
}
void prof_print(void)
{
unsigned long index, count = 0;
msg(MSG_INFO, "\nProfile data:\n");
for (index = 0; index < PROF_COUNT; index++) {
if (prof_container[index].calls == 0)
continue;
count++;
msg(MSG_INFO, " %s: total cpu time = %u, calls: %u, avg time per call = %u\n",
prof_to_string[index],
prof_container[index].total_time / MCLK_MHz, prof_container[index].calls,
((prof_container[index].total_time / MCLK_MHz) / prof_container[index].calls));
}
if (count == 0)
msg(MSG_INFO, " no profile data available\n");
}
void prof_demo(void)
{
volatile unsigned int x = 2323;
prof_start(PROF_add);
x = 50000 + x;
prof_stop(PROF_add);
prof_start(PROF_subt);
x = 50000 - x;
prof_stop(PROF_subt);
prof_start(PROF_mult);
x = 50000 * x;
prof_stop(PROF_mult);
prof_start(PROF_div);
x = 50000 / x;
prof_stop(PROF_div);
prof_start(PROF_mod);
x = 50000 % x;
prof_stop(PROF_mod);
prof_start(PROF_delay);
delay_us(1000);
prof_stop(PROF_delay);
}
#else
void profile_init(void)
{
}
void prof_start(unsigned long index)
{
}
void prof_stop(unsigned long index)
{
}
void prof_print(void)
{
}
void prof_demo(void)
{
}
#endif
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