xnsticks_t xnclock_core_ticks_to_ns(xnsticks_t ticks)
{
return xnarch_llimd(ticks, 1000000000, clockfreq);
}
xnsticks_t xnclock_core_ticks_to_ns_rounded(xnsticks_t ticks)
{
return (xnarch_llimd(ticks, 1000000000, clockfreq/2) + 1) / 2;
}
xnsticks_t xnclock_core_ns_to_ticks(xnsticks_t ns)
{
return xnarch_llimd(ns, clockfreq, 1000000000);
}
long long xnclock_core_ns_to_ticks(long long ns)
{
return xnarch_llimd(ns, 1 << tsc_shift, tsc_scale);
}
static int run_arith(struct smokey_test *t, int argc, char *const argv[])
{
unsigned int mul, shft, rejected;
long long avg, calib = 0;
#ifdef XNARCH_HAVE_NODIV_LLIMD
struct xnarch_u32frac frac;
#endif
int i;
/* Prepare. */
xnarch_init_llmulshft(nsec_per_sec, sample_freq, &mul, &shft);
smokey_trace("mul: 0x%08x, shft: %d", mul, shft);
#ifdef XNARCH_HAVE_NODIV_LLIMD
xnarch_init_u32frac(&frac, nsec_per_sec, sample_freq);
smokey_trace("integ: %d, frac: 0x%08llx", frac.integ, frac.frac);
#endif /* XNARCH_HAVE_NODIV_LLIMD */
smokey_trace("\nsigned positive operation: 0x%016llx * %u / %d",
arg, nsec_per_sec, sample_freq);
bench("inline calibration", 0);
calib = avg;
bench("inlined llimd", xnarch_llimd(arg, nsec_per_sec, sample_freq));
bench("inlined llmulshft", xnarch_llmulshft(arg, mul, shft));
#ifdef XNARCH_HAVE_NODIV_LLIMD
bench("inlined nodiv_llimd",
xnarch_nodiv_llimd(arg, frac.frac, frac.integ));
#endif /* XNARCH_HAVE_NODIV_LLIMD */
calib = 0;
bench("out of line calibration", dummy());
calib = avg;
bench("out of line llimd",
do_llimd(arg, nsec_per_sec, sample_freq));
bench("out of line llmulshft", do_llmulshft(arg, mul, shft));
#ifdef XNARCH_HAVE_NODIV_LLIMD
bench("out of line nodiv_llimd",
do_nodiv_llimd(arg, frac.frac, frac.integ));
#endif /* XNARCH_HAVE_NODIV_LLIMD */
smokey_trace("\nsigned negative operation: 0x%016llx * %u / %d",
-arg, nsec_per_sec, sample_freq);
calib = 0;
bench("inline calibration", 0);
calib = avg;
bench("inlined llimd", xnarch_llimd(-arg, nsec_per_sec, sample_freq));
bench("inlined llmulshft", xnarch_llmulshft(-arg, mul, shft));
#ifdef XNARCH_HAVE_NODIV_LLIMD
bench("inlined nodiv_llimd",
xnarch_nodiv_llimd(-arg, frac.frac, frac.integ));
#endif /* XNARCH_HAVE_NODIV_LLIMD */
calib = 0;
bench("out of line calibration", dummy());
calib = avg;
bench("out of line llimd",
do_llimd(-arg, nsec_per_sec, sample_freq));
bench("out of line llmulshft", do_llmulshft(-arg, mul, shft));
#ifdef XNARCH_HAVE_NODIV_LLIMD
bench("out of line nodiv_llimd",
do_nodiv_llimd(-arg, frac.frac, frac.integ));
#endif /* XNARCH_HAVE_NODIV_LLIMD */
#ifdef XNARCH_HAVE_NODIV_LLIMD
smokey_trace("\nunsigned operation: 0x%016llx * %u / %d",
arg, nsec_per_sec, sample_freq);
calib = 0;
bench("inline calibration", 0);
calib = avg;
bench("inlined nodiv_ullimd",
xnarch_nodiv_ullimd(arg, frac.frac, frac.integ));
calib = 0;
bench("out of line calibration", dummy());
calib = avg;
bench("out of line nodiv_ullimd",
do_nodiv_ullimd(arg, frac.frac, frac.integ));
#endif /* XNARCH_HAVE_NODIV_LLIMD */
return 0;
}
xnsticks_t cobalt_ns_to_ticks(xnsticks_t ns)
{
return xnarch_llimd(ns, clockfreq, 1000000000);
}
xnsticks_t cobalt_ticks_to_ns_rounded(xnsticks_t ticks)
{
return (xnarch_llimd(ticks, 1000000000, clockfreq/2) + 1) / 2;
}
xnsticks_t cobalt_ticks_to_ns(xnsticks_t ticks)
{
return xnarch_llimd(ticks, 1000000000, clockfreq);
}
long long cobalt_ns_to_ticks(long long ns)
{
return xnarch_llimd(ns, 1 << tsc_shift, tsc_scale);
}
