163 lines
5.0 KiB
C
163 lines
5.0 KiB
C
/*
|
|
Copyright 2018 Embedded Microprocessor Benchmark Consortium (EEMBC)
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
|
|
Original Author: Shay Gal-on
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include "coremark.h"
|
|
#include "board_init.h"
|
|
|
|
#define SysTick_Counter_Disable ((uint32_t)0xFFFFFFFE)
|
|
#define SysTick_Counter_Enable ((uint32_t)0x00000001)
|
|
#define SysTick_Counter_Clear ((uint32_t)0x00000000)
|
|
#define EE_TICKS_PER_SEC 1000;
|
|
#define ITERATIONS 12000
|
|
volatile uint32_t count;
|
|
|
|
|
|
#if VALIDATION_RUN
|
|
volatile ee_s32 seed1_volatile = 0x3415;
|
|
volatile ee_s32 seed2_volatile = 0x3415;
|
|
volatile ee_s32 seed3_volatile = 0x66;
|
|
#endif
|
|
#if PERFORMANCE_RUN
|
|
volatile ee_s32 seed1_volatile = 0x0;
|
|
volatile ee_s32 seed2_volatile = 0x0;
|
|
volatile ee_s32 seed3_volatile = 0x66;
|
|
#endif
|
|
#if PROFILE_RUN
|
|
volatile ee_s32 seed1_volatile = 0x8;
|
|
volatile ee_s32 seed2_volatile = 0x8;
|
|
volatile ee_s32 seed3_volatile = 0x8;
|
|
#endif
|
|
volatile ee_s32 seed4_volatile = ITERATIONS;
|
|
volatile ee_s32 seed5_volatile = 0;
|
|
/* Porting : Timing functions
|
|
How to capture time and convert to seconds must be ported to whatever is
|
|
supported by the platform. e.g. Read value from on board RTC, read value from
|
|
cpu clock cycles performance counter etc. Sample implementation for standard
|
|
time.h and windows.h definitions included.
|
|
*/
|
|
/* Define : TIMER_RES_DIVIDER
|
|
Divider to trade off timer resolution and total time that can be
|
|
measured.
|
|
|
|
Use lower values to increase resolution, but make sure that overflow
|
|
does not occur. If there are issues with the return value overflowing,
|
|
increase this value.
|
|
*/
|
|
#if 0
|
|
#define NSECS_PER_SEC CLOCKS_PER_SEC
|
|
#define CORETIMETYPE clock_t
|
|
#define GETMYTIME(_t) (*_t = clock())
|
|
#define MYTIMEDIFF(fin, ini) ((fin) - (ini))
|
|
#define TIMER_RES_DIVIDER 1
|
|
#define SAMPLE_TIME_IMPLEMENTATION 1
|
|
#define EE_TICKS_PER_SEC (NSECS_PER_SEC / TIMER_RES_DIVIDER)
|
|
|
|
/** Define Host specific (POSIX), or target specific global time variables. */
|
|
static CORETIMETYPE start_time_val, stop_time_val;
|
|
#endif
|
|
/* Function : start_time
|
|
This function will be called right before starting the timed portion of
|
|
the benchmark.
|
|
|
|
Implementation may be capturing a system timer (as implemented in the
|
|
example code) or zeroing some system parameters - e.g. setting the cpu clocks
|
|
cycles to 0.
|
|
*/
|
|
void start_time(void)
|
|
{
|
|
count = 0;
|
|
SysTick_Config(CLOCK_SYS_FREQ / 1000u);
|
|
}
|
|
/* Function : stop_time
|
|
This function will be called right after ending the timed portion of the
|
|
benchmark.
|
|
|
|
Implementation may be capturing a system timer (as implemented in the
|
|
example code) or other system parameters - e.g. reading the current value of
|
|
cpu cycles counter.
|
|
*/
|
|
void stop_time(void)
|
|
{
|
|
/* Stop the Timer and get the encoding time */
|
|
SysTick->CTRL &= SysTick_Counter_Disable;
|
|
/* Clear the SysTick Counter */
|
|
SysTick->VAL = SysTick_Counter_Clear;
|
|
}
|
|
/* Function : get_time
|
|
Return an abstract "ticks" number that signifies time on the system.
|
|
|
|
Actual value returned may be cpu cycles, milliseconds or any other
|
|
value, as long as it can be converted to seconds by <time_in_secs>. This
|
|
methodology is taken to accommodate any hardware or simulated platform. The
|
|
sample implementation returns millisecs by default, and the resolution is
|
|
controlled by <TIMER_RES_DIVIDER>
|
|
*/
|
|
CORE_TICKS get_time(void)
|
|
{
|
|
CORE_TICKS elapsed=(CORE_TICKS) count;
|
|
return elapsed;
|
|
}
|
|
/* Function : time_in_secs
|
|
Convert the value returned by get_time to seconds.
|
|
|
|
The <secs_ret> type is used to accommodate systems with no support for
|
|
floating point. Default implementation implemented by the EE_TICKS_PER_SEC
|
|
macro above.
|
|
*/
|
|
secs_ret time_in_secs(CORE_TICKS ticks)
|
|
{
|
|
secs_ret retval = ((secs_ret)ticks) / (secs_ret)EE_TICKS_PER_SEC;
|
|
return retval;
|
|
}
|
|
|
|
ee_u32 default_num_contexts = 1;
|
|
|
|
/* Function : portable_init
|
|
Target specific initialization code
|
|
Test for some common mistakes.
|
|
*/
|
|
void portable_init(core_portable *p, int *argc, char *argv[])
|
|
{
|
|
if (sizeof(ee_ptr_int) != sizeof(ee_u8 *))
|
|
{
|
|
ee_printf("ERROR! Please define ee_ptr_int to a type that holds a pointer!\n");
|
|
}
|
|
if (sizeof(ee_u32) != 4)
|
|
{
|
|
ee_printf("ERROR! Please define ee_u32 to a 32b unsigned type!\n");
|
|
}
|
|
p->portable_id = 1;
|
|
}
|
|
|
|
/* Function : portable_fini
|
|
Target specific final code
|
|
*/
|
|
void portable_fini(core_portable *p)
|
|
{
|
|
printf("done.\r\n");
|
|
p->portable_id = 0;
|
|
while (1){}
|
|
}
|
|
|
|
void SysTick_Handler(void)
|
|
{
|
|
count++;
|
|
}
|