156 lines
5.2 KiB
C
156 lines
5.2 KiB
C
/*
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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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*/
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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 "stx7105.h"
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#define SYSTEM_CONFIG34 (0xFE001188U) /* PIO4 */
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#define SYSTEM_CONFIG7 (0xFE00111CU) /* RXSEL */
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#define CONSOLE_ASC ASC2
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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
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supported by the platform. e.g. Read value from on board RTC, read value from
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cpu clock cycles performance counter etc. Sample implementation for standard
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time.h and windows.h definitions included.
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*/
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#define EE_TICKS_PER_SEC (100000000.0 / 1024.0)
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/** Define Host specific (POSIX), or target specific global time variables. */
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static uint32_t 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
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the benchmark.
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Implementation may be capturing a system timer (as implemented in the
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example code) or zeroing some system parameters - e.g. setting the cpu clocks
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cycles to 0.
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*/
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void start_time(void) {
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uint32_t reload_value = 0xFFFFFFF;
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start_time_val = reload_value;
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TMU->TSTR &= ~TMU_TSTR_STR0_Msk; /* Stop counter */
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TMU->TCR0 = 0x04U; /* 1024 prescale */
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TMU->TCNT0 = reload_value; /* 100kHz */
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TMU->TCOR0 = reload_value; /* Reload register */
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TMU->TSTR |= TMU_TSTR_STR0_Msk; /* Start counter */
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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
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benchmark.
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Implementation may be capturing a system timer (as implemented in the
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example code) or other system parameters - e.g. reading the current value of
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cpu cycles counter.
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*/
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void stop_time(void) {
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TMU->TSTR &= ~TMU_TSTR_STR0_Msk; /* Stop counter */
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stop_time_val = TMU->TCNT0;
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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
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value, as long as it can be converted to seconds by <time_in_secs>. This
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methodology is taken to accommodate any hardware or simulated platform. The
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sample implementation returns millisecs by default, and the resolution is
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controlled by <TIMER_RES_DIVIDER>
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*/
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CORE_TICKS get_time(void) {
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return start_time_val - stop_time_val;
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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 accommodate systems with no support for
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floating point. Default implementation implemented by the EE_TICKS_PER_SEC
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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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static void uart_init(void) {
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PIO4->CLR_PC0 = 1U; /* PC = 110, AFOUT, PP */
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PIO4->SET_PC1 = 1U;
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PIO4->SET_PC2 = 1U;
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*(uint32_t *)SYSTEM_CONFIG34 = 0x00000100UL; /* BIT[8,0] = 10, AF 3 */
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*(uint32_t *)SYSTEM_CONFIG7 &= ~(0x00000006UL); /* BIT[2:1], UART2 RX SEL */
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CONSOLE_ASC->CTRL = 0x1509UL; /* 8N1, RX enable, FIFO enable, Baud mode 1 */
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CONSOLE_ASC->BAUDRATE = 0x04B8UL; /* 115200 in baud mode 1, assuming Fcomm=100MHz */
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CONSOLE_ASC->TX_RST = 0x01UL; /* Reset TX FIFO, any value OK */
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CONSOLE_ASC->RX_RST = 0x01UL; /* Reset RX FIFO, any value OK */
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CONSOLE_ASC->CTRL = 0x1589UL; /* 8N1, RX enable, FIFO enable, Baud mode 1 */
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}
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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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(void)argc; // prevent unused warning
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(void)argv; // prevent unused warning
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uart_init();
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if (sizeof(ee_ptr_int) != sizeof(ee_u8 *)) {
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ee_printf(
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"ERROR! Please define ee_ptr_int to a type that holds a "
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"pointer!\r\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!\r\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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p->portable_id = 0;
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}
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