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zero_gravi |
/*
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Copyright 2018 Embedded Microprocessor Benchmark Consortium (EEMBC)
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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Original Author: Shay Gal-on
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Modified for neo430 by Stephan Nolting
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "coremark.h"
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#include "core_portme.h"
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#if VALIDATION_RUN
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volatile ee_s32 seed1_volatile=0x3415;
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volatile ee_s32 seed2_volatile=0x3415;
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volatile ee_s32 seed3_volatile=0x66;
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#endif
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#if PERFORMANCE_RUN
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volatile ee_s32 seed1_volatile=0x0;
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volatile ee_s32 seed2_volatile=0x0;
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volatile ee_s32 seed3_volatile=0x66;
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#endif
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#if PROFILE_RUN
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volatile ee_s32 seed1_volatile=0x8;
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volatile ee_s32 seed2_volatile=0x8;
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volatile ee_s32 seed3_volatile=0x8;
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#endif
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volatile ee_s32 seed4_volatile=ITERATIONS;
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volatile ee_s32 seed5_volatile=0;
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/* Porting : Timing functions
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How to capture time and convert to seconds must be ported to whatever is supported by the platform.
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e.g. Read value from on board RTC, read value from cpu clock cycles performance counter etc.
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Sample implementation for standard time.h and windows.h definitions included.
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*/
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/* Define : TIMER_RES_DIVIDER
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Divider to trade off timer resolution and total time that can be measured.
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Use lower values to increase resolution, but make sure that overflow does not occur.
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If there are issues with the return value overflowing, increase this value.
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*/
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#define NSECS_PER_SEC NEO430_TIMER_F
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#define CORETIMETYPE clock_t
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#define GETMYTIME(_t) (*_t=clock())
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#define MYTIMEDIFF(fin,ini) ((fin)-(ini))
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#define TIMER_RES_DIVIDER 1
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#define SAMPLE_TIME_IMPLEMENTATION 1
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#define EE_TICKS_PER_SEC (NSECS_PER_SEC / TIMER_RES_DIVIDER)
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/** Define Host specific (POSIX), or target specific global time variables. */
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//static CORETIMETYPE start_time_val, stop_time_val;
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/* Function : start_time
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This function will be called right before starting the timed portion of the benchmark.
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Implementation may be capturing a system timer (as implemented in the example code)
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or zeroing some system parameters - e.g. setting the cpu clocks cycles to 0.
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*/
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void start_time(void) {
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neo430_timer_run();
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//GETMYTIME(&start_time_val );
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}
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/* Function : stop_time
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This function will be called right after ending the timed portion of the benchmark.
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Implementation may be capturing a system timer (as implemented in the example code)
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or other system parameters - e.g. reading the current value of cpu cycles counter.
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*/
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void stop_time(void) {
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neo430_timer_pause();
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//GETMYTIME(&stop_time_val );
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}
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/* Function : get_time
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Return an abstract "ticks" number that signifies time on the system.
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Actual value returned may be cpu cycles, milliseconds or any other value,
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as long as it can be converted to seconds by <time_in_secs>.
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This methodology is taken to accomodate any hardware or simulated platform.
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The sample implementation returns millisecs by default,
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and the resolution is controlled by <TIMER_RES_DIVIDER>
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*/
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CORE_TICKS get_time(void) {
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CORE_TICKS elapsed = (CORE_TICKS)neo430_ticks;
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//CORE_TICKS elapsed=(CORE_TICKS)(MYTIMEDIFF(stop_time_val, start_time_val));
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return elapsed;
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}
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/* Function : time_in_secs
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Convert the value returned by get_time to seconds.
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The <secs_ret> type is used to accomodate systems with no support for floating point.
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Default implementation implemented by the EE_TICKS_PER_SEC macro above.
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*/
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secs_ret time_in_secs(CORE_TICKS ticks) {
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secs_ret retval=((secs_ret)ticks) / (secs_ret)EE_TICKS_PER_SEC;
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return retval;
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}
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ee_u32 default_num_contexts=1;
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/* Function : portable_init
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Target specific initialization code
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Test for some common mistakes.
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*/
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void portable_init(core_portable *p, int *argc, char *argv[])
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{
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// setup neo UART
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neo430_uart_setup(BAUD_RATE); // baud rate
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// check if TIMER unit was synthesized, exit if no TIMER is available
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if (!(SYS_FEATURES & (1<<SYS_TIMER_EN))) {
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neo430_uart_br_print("ERROR! No TIMER unit synthesized!");
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while(1);
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}
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// timer IRQ vector
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IRQVEC_TIMER = (uint16_t)(&timer_irq_handler);
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neo430_ticks = 0;
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// setup neo430 timer
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TMR_CT = (1<<TMR_CT_EN) | // timer enabled
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(1<<TMR_CT_ARST) | // auto-reset on match
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(1<<TMR_CT_IRQ) | // interrupt enable
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(0<<TMR_CT_RUN); // timer not running yet
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uint16_t timer_thres;
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if (neo430_timer_config_freq(NEO430_TIMER_F, &timer_thres)) {
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neo430_printf("NEO430: timer frequency config error!\n");
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while(1);
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}
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neo430_printf("NEO430: clock speed = %n Hz\n", CLOCKSPEED_32bit);
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neo430_printf("NEO430: timer IRQs/s = %u\n", (uint16_t)NEO430_TIMER_F);
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#if USE_NEO430_MUL
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neo430_printf("NEO430: using NEO430 MULDIV unit for matrix core operations\n");
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#endif
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neo430_printf("NEO430: running coremark (%u iterations). This may take some time...\n\n", (uint16_t)ITERATIONS);
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// enable global IRQs
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neo430_eint();
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if (sizeof(ee_ptr_int) != sizeof(ee_u8 *)) {
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ee_printf("ERROR! Please define ee_ptr_int to a type that holds a pointer!\n");
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}
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if (sizeof(ee_u32) != 4) {
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ee_printf("ERROR! Please define ee_u32 to a 32b unsigned type!\n");
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}
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p->portable_id=1;
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}
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/* Function : portable_fini
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Target specific final code
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*/
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void portable_fini(core_portable *p)
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{
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p->portable_id=0;
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}
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/* ------------------------------------------------------------
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* INFO Timer interrupt handler
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* ------------------------------------------------------------ */
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void __attribute__((__interrupt__)) timer_irq_handler(void) {
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neo430_ticks++;
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}
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