#include <linux/compiler.h>
#include <linux/types.h>

#include "tsc.h"

u64 perf_time_to_tsc(u64 ns, struct perf_tsc_conversion *tc)
{
	u64 t, quot, rem;

	t = ns - tc->time_zero;
	quot = t / tc->time_mult;
	rem  = t % tc->time_mult;
	return (quot << tc->time_shift) +
	       (rem << tc->time_shift) / tc->time_mult;
}

u64 tsc_to_perf_time(u64 cyc, struct perf_tsc_conversion *tc)
{
	u64 quot, rem;

	quot = cyc >> tc->time_shift;
	rem  = cyc & (((u64)1 << tc->time_shift) - 1);
	return tc->time_zero + quot * tc->time_mult +
	       ((rem * tc->time_mult) >> tc->time_shift);
}

u64 __weak rdtsc(void)
{
	return 0;
}
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=04fa3e680b4dd2fdd11d0152fb9b6067e7aac140'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools?h=nds-private-remove&amp;id=04fa3e680b4dd2fdd11d0152fb9b6067e7aac140'>tools</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf?h=nds-private-remove&amp;id=04fa3e680b4dd2fdd11d0152fb9b6067e7aac140'>perf</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/arch?h=nds-private-remove&amp;id=04fa3e680b4dd2fdd11d0152fb9b6067e7aac140'>arch</a>/<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/arch/arm64?h=nds-private-remove&amp;id=04fa3e680b4dd2fdd11d0152fb9b6067e7aac140'>arm64</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/tools/perf/arch/arm64?h=nds-private-remove&amp;id=04fa3e680b4dd2fdd11d0152fb9b6067e7aac140&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>