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70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
#ifndef __PERF_TESTS_H__
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#define __PERF_TESTS_H__
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/* Architecture specific perfmon cycle counting */
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#include <l4lib/types.h>
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#include <l4lib/macros.h>
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#include L4LIB_INC_SUBARCH(perfmon.h)
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struct perfmon_cycles {
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u64 last; /* Last op cycles */
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u64 min; /* Minimum cycles */
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u64 max; /* Max cycles */
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u64 avg; /* Average cycles */
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u64 total; /* Total cycles */
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u64 ops; /* Total ops */
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};
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/*
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* This is for converting cycle count to timings on
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* Cortex-A9 running at 400Mhz. 25 / 100000 is
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* a rewriting of 2.5 nanosec / 1,000,000 in millisec
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*
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* 25 / 100 = 2.5nanosec * 10 / 1000 = microseconds
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*/
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#define CORTEXA9_400MHZ_USEC 25 / 10000
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#define CORTEXA9_400MHZ_MSEC 25 / 10000000
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#define USEC_MULTIPLIER CORTEXA9_400MHZ_USEC
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#define MSEC_MULTIPLIER CORTEXA9_400MHZ_MSEC
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#if !defined(CONFIG_DEBUG_PERFMON_USER)
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#define perfmon_record_cycles(ptr, str)
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#else /* End of CONFIG_DEBUG_PERFMON_USER */
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#define perfmon_record_cycles(pcyc, str) \
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{ \
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(pcyc)->ops++; \
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(pcyc)->last = perfmon_read_cyccnt() * 64; \
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(pcyc)->total += (pcyc)->last; \
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if ((pcyc)->min > (pcyc)->last) \
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(pcyc)->min = (pcyc)->last; \
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if ((pcyc)->max < (pcyc)->last) \
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(pcyc)->max = (pcyc)->last; \
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}
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/* Same as above but restarts counter */
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#define perfmon_checkpoint_cycles(pcyc, str) \
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{ \
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(pcyc)->last = perfmon_read_cyccnt(); \
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(pcyc)->total += pcyc->last; \
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perfmon_reset_start_cyccnt(); \
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}
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#endif /* End of !CONFIG_DEBUG_PERFMON_USER */
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void platform_measure_cpu_cycles(void);
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void perf_measure_getid_ticks(void);
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void perf_measure_cpu_cycles(void);
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void perf_measure_getid(void);
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void perf_measure_tctrl(void);
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int perf_measure_exregs(void);
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void perf_measure_ipc(void);
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void perf_measure_map(void);
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void perf_measure_unmap(void);
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void perf_measure_mutex(void);
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#endif /* __PERF_TESTS_H__ */
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