Subversion Repositories c0or1k

#ifndef __PERF_TESTS_H__

#define __PERF_TESTS_H__

/* Architecture specific perfmon cycle counting */

#include <l4lib/types.h>

#include <l4lib/macros.h>

#include L4LIB_INC_SUBARCH(perfmon.h)

struct perfmon_cycles {

        u64 last;       /* Last op cycles */

        u64 min;        /* Minimum cycles */

        u64 max;        /* Max cycles */

        u64 avg;        /* Average cycles */

        u64 total;      /* Total cycles */

        u64 ops;        /* Total ops */

};

/*

 * This is for converting cycle count to timings on

 * Cortex-A9 running at 400Mhz. 25 / 100000 is

 * a rewriting of 2.5 nanosec / 1,000,000 in millisec

 *

 * 25 / 100 = 2.5nanosec * 10 / 1000 = microseconds

 */

#define CORTEXA9_400MHZ_USEC    25 / 10000

#define CORTEXA9_400MHZ_MSEC    25 / 10000000

#define USEC_MULTIPLIER         CORTEXA9_400MHZ_USEC

#define MSEC_MULTIPLIER         CORTEXA9_400MHZ_MSEC

#if !defined(CONFIG_DEBUG_PERFMON_USER)

#define perfmon_record_cycles(ptr, str)

#else /* End of CONFIG_DEBUG_PERFMON_USER */

#define perfmon_record_cycles(pcyc, str)                \

{                                                       \

        (pcyc)->ops++;                                  \

        (pcyc)->last = perfmon_read_cyccnt() * 64;      \

        (pcyc)->total += (pcyc)->last;                  \

        if ((pcyc)->min > (pcyc)->last)                 \

                (pcyc)->min = (pcyc)->last;             \

        if ((pcyc)->max < (pcyc)->last)                 \

                (pcyc)->max = (pcyc)->last;             \

}

/* Same as above but restarts counter */

#define perfmon_checkpoint_cycles(pcyc, str)            \

{                                                       \

        (pcyc)->last = perfmon_read_cyccnt();           \

        (pcyc)->total += pcyc->last;                    \

        perfmon_reset_start_cyccnt();                   \

}

#endif /* End of !CONFIG_DEBUG_PERFMON_USER */

void platform_measure_cpu_cycles(void);

void perf_measure_getid_ticks(void);

void perf_measure_cpu_cycles(void);

void perf_measure_getid(void);

void perf_measure_tctrl(void);

int perf_measure_exregs(void);

void perf_measure_ipc(void);

void perf_measure_map(void);

void perf_measure_unmap(void);

void perf_measure_mutex(void);

#endif /* __PERF_TESTS_H__ */