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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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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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See the License for the specific language governing permissions and
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limitations under the License.
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limitations under the License.
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Original Author: Shay Gal-on
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Original Author: Shay Gal-on
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Modified for NEORV32 by Stephan Nolting
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*/
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*/
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#include <stdio.h>
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/* Modified for the NEORV32 Processor - by Stephan Nolting */
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#include <stdlib.h>
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#include "coremark.h"
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#include "coremark.h"
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#include "core_portme.h"
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#include "core_portme.h"
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#if VALIDATION_RUN
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#if VALIDATION_RUN
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volatile ee_s32 seed1_volatile=0x3415;
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volatile ee_s32 seed1_volatile=0x3415;
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| Line 39... |
Line 37... |
volatile ee_s32 seed3_volatile=0x8;
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volatile ee_s32 seed3_volatile=0x8;
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#endif
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#endif
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volatile ee_s32 seed4_volatile=ITERATIONS;
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volatile ee_s32 seed4_volatile=ITERATIONS;
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volatile ee_s32 seed5_volatile=0;
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volatile ee_s32 seed5_volatile=0;
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/* Porting : Timing functions
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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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How to capture time and convert to seconds must be ported to whatever is
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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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supported by the platform. e.g. Read value from on board RTC, read value from
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Sample implementation for standard time.h and windows.h definitions included.
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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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CORETIMETYPE
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barebones_clock()
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{
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/*
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#error \
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"You must implement a method to measure time in barebones_clock()! This function should return current time.\n"
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*/
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*/
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return 0;
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}
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/* Define : TIMER_RES_DIVIDER
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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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Divider to trade off timer resolution and total time that can be
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measured.
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Use lower values to increase resolution, but make sure that overflow does not occur.
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Use lower values to increase resolution, but make sure that overflow
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If there are issues with the return value overflowing, increase this value.
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does not occur. If there are issues with the return value overflowing,
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increase this value.
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*/
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*/
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#define NSECS_PER_SEC 20000000
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#define GETMYTIME(_t) (*_t = (CORETIMETYPE)neorv32_cpu_get_cycle())
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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 MYTIMEDIFF(fin,ini) ((fin)-(ini))
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#define TIMER_RES_DIVIDER 1
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#define TIMER_RES_DIVIDER 1
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#define SAMPLE_TIME_IMPLEMENTATION 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 EE_TICKS_PER_SEC (CLOCKS_PER_SEC / TIMER_RES_DIVIDER)
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CORE_TICKS elapsed_cycles; // NEORV32 specific
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/** Define Host specific (POSIX), or target specific global time variables. */
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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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static CORETIMETYPE start_time_val, stop_time_val;
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/* Function : start_time
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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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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 example code)
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Implementation may be capturing a system timer (as implemented in the
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or zeroing some system parameters - e.g. setting the cpu clocks cycles to 0.
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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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*/
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void start_time(void) {
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void
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elapsed_cycles = 0; // this is time zero
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start_time(void)
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neorv32_cpu_set_mcycle(0);
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{
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neorv32_cpu_set_minstret(0);
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GETMYTIME(&start_time_val);
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//GETMYTIME(&start_time_val );
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}
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}
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/* Function : stop_time
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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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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 example code)
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Implementation may be capturing a system timer (as implemented in the
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or other system parameters - e.g. reading the current value of cpu cycles counter.
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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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*/
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void stop_time(void) {
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void
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//GETMYTIME(&stop_time_val );
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stop_time(void)
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{
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GETMYTIME(&stop_time_val);
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}
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}
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/* Function : get_time
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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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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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Actual value returned may be cpu cycles, milliseconds or any other
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as long as it can be converted to seconds by <time_in_secs>.
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value, as long as it can be converted to seconds by <time_in_secs>. This
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This methodology is taken to accomodate any hardware or simulated platform.
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methodology is taken to accomodate any hardware or simulated platform. The
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The sample implementation returns millisecs by default,
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sample implementation returns millisecs by default, and the resolution is
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and the resolution is controlled by <TIMER_RES_DIVIDER>
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controlled by <TIMER_RES_DIVIDER>
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*/
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*/
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CORE_TICKS get_time(void) {
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CORE_TICKS
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CORE_TICKS elapsed = ((CORE_TICKS)neorv32_cpu_get_cycle()) - elapsed_cycles;
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get_time(void)
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elapsed_cycles = elapsed;
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{
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//CORE_TICKS elapsed=(CORE_TICKS)(MYTIMEDIFF(stop_time_val, start_time_val));
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CORE_TICKS elapsed
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= (CORE_TICKS)(MYTIMEDIFF(stop_time_val, start_time_val));
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return elapsed;
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return elapsed;
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}
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}
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/* Function : time_in_secs
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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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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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The <secs_ret> type is used to accomodate systems with no support for
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Default implementation implemented by the EE_TICKS_PER_SEC macro above.
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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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*/
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secs_ret time_in_secs(CORE_TICKS ticks) {
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secs_ret
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//secs_ret retval=((secs_ret)ticks) / (secs_ret)EE_TICKS_PER_SEC;
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time_in_secs(CORE_TICKS ticks)
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secs_ret retval=(secs_ret)(ticks / SYSINFO_CLK);
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{
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/* NEORV32-specific */
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secs_ret retval = ((secs_ret)ticks) / (secs_ret)SYSINFO_CLK;
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return retval;
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return retval;
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}
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}
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ee_u32 default_num_contexts=1;
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ee_u32 default_num_contexts=1;
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/* Function : portable_init
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/* Function : portable_init
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Target specific initialization code
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Target specific initialization code
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Test for some common mistakes.
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Test for some common mistakes.
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*/
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*/
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void portable_init(core_portable *p, int *argc, char *argv[])
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#ifndef RUN_COREMARK
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void
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__attribute__((__noreturn__))
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portable_init(core_portable *p, int *argc, char *argv[])
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#else
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void
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portable_init(core_portable *p, int *argc, char *argv[])
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#endif
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{
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{
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// no interrupts, thanks
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/* NEORV32-specific */
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neorv32_cpu_dint();
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neorv32_cpu_dint(); // no interrupt, thanks
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neorv32_rte_setup(); // capture all exceptions and give debug information
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neorv32_uart_setup(BAUD_RATE, 0, 0); // setup UART
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// capture all exceptions and give debug information
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neorv32_rte_setup();
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// setup neorv32 UART
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// Disable coremark compilation by default
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neorv32_uart_setup(BAUD_RATE, 0, 0);
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#ifndef RUN_COREMARK
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#warning COREMARK HAS NOT BEEN COMPILED! Use >>make USER_FLAGS+=-DRUN_COREMARK clean_all exe<< to compile it.
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// inform the user if you are actually executing this
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neorv32_uart_printf("ERROR! CoreMark has not been compiled. Use >>make USER_FLAGS+=-DRUN_COREMARK clean_all exe<< to compile it.\n");
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while(1);
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#endif
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neorv32_uart_printf("NEORV32: Processor running at %u Hz\n", (uint32_t)SYSINFO_CLK);
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neorv32_uart_printf("NEORV32: Processor running at %u Hz\n", (uint32_t)SYSINFO_CLK);
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neorv32_uart_printf("NEORV32: Executing coremark (%u iterations). This may take some time...\n\n", (uint32_t)ITERATIONS);
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neorv32_uart_printf("NEORV32: Executing coremark (%u iterations). This may take some time...\n\n", (uint32_t)ITERATIONS);
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if (sizeof(ee_ptr_int) != sizeof(ee_u8 *)) {
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/*
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ee_printf("ERROR! Please define ee_ptr_int to a type that holds a pointer!\n");
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#error \
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"Call board initialization routines in portable init (if needed), in particular initialize UART!\n"
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*/
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if (sizeof(ee_ptr_int) != sizeof(ee_u8 *))
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{
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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!\n");
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}
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}
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if (sizeof(ee_u32) != 4) {
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if (sizeof(ee_u32) != 4)
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{
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ee_printf("ERROR! Please define ee_u32 to a 32b unsigned type!\n");
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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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}
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p->portable_id=1;
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p->portable_id=1;
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#ifndef RUN_COREMARK
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while(1);
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#endif
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}
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}
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/* Function : portable_fini
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/* Function : portable_fini
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Target specific final code
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Target specific final code
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*/
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*/
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void portable_fini(core_portable *p)
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void
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portable_fini(core_portable *p)
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{
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{
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p->portable_id=0;
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p->portable_id=0;
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/* NORV§"-specific */
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// show executed instructions, required cycles and resulting average CPI
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// show executed instructions, required cycles and resulting average CPI
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union {
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union {
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uint64_t uint64;
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uint64_t uint64;
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uint32_t uint32[sizeof(uint64_t)/2];
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uint32_t uint32[sizeof(uint64_t)/2];
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} exe_instructions, exe_time;
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} exe_instructions, exe_time;
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exe_time.uint64 = (uint64_t)elapsed_cycles;
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exe_time.uint64 = (uint64_t)get_time();
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exe_instructions.uint64 = neorv32_cpu_get_instret();
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exe_instructions.uint64 = neorv32_cpu_get_instret();
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neorv32_uart_printf("\nNEORV32: All reported numbers only show the integer results.\n\n");
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neorv32_uart_printf("\nNEORV32: All reported numbers only show the integer results.\n\n");
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neorv32_uart_printf("NEORV32: Executed instructions 0x%x_%x\n", (uint32_t)exe_instructions.uint32[1], (uint32_t)exe_instructions.uint32[0]);
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neorv32_uart_printf("NEORV32: Executed instructions 0x%x_%x\n", (uint32_t)exe_instructions.uint32[1], (uint32_t)exe_instructions.uint32[0]);
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neorv32_uart_printf("NEORV32: CoreMark core clock cycles 0x%x_%x\n", (uint32_t)exe_time.uint32[1], (uint32_t)exe_time.uint32[0]);
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neorv32_uart_printf("NEORV32: CoreMark core clock cycles 0x%x_%x\n", (uint32_t)exe_time.uint32[1], (uint32_t)exe_time.uint32[0]);
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uint64_t average_cpi = exe_time.uint64 / exe_instructions.uint64;
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uint64_t average_cpi_int = exe_time.uint64 / exe_instructions.uint64;
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neorv32_uart_printf("NEORV32: Average CPI (integer part only): %u cycles/instruction\n", (uint32_t)average_cpi);
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neorv32_uart_printf("NEORV32: Average CPI (integer part only): %u cycles/instruction\n", (uint32_t)average_cpi_int);
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}
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}
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No newline at end of file
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No newline at end of file
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