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43 lines
895 B
C
43 lines
895 B
C
/* $NetBSD: getsecs.c,v 1.11 2013/11/03 01:02:37 christos Exp $ */
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#include <sys/param.h>
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#include <machine/cpu.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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#include <lib/libsa/stand.h>
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#include <lib/libsa/net.h>
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#include "include/prom.h"
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#include "include/rpb.h"
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satime_t
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getsecs(void)
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{
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static uint64_t tnsec;
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static uint64_t lastpcc;
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uint64_t curpcc;
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if (tnsec == 0) {
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tnsec = 1;
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lastpcc = alpha_rpcc() & 0xffffffff;
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#if 0
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uint64_t wrapsecs = (0xffffffff /
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((struct rpb *)HWRPB_ADDR)->rpb_cc_freq) + 1;
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printf("getsecs: cc freq = %lu, time to wrap = %lu\n",
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((struct rpb *)HWRPB_ADDR)->rpb_cc_freq, wrapsecs);
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#endif
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}
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curpcc = alpha_rpcc() & 0xffffffff;
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if (curpcc < lastpcc)
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curpcc += 0x100000000;
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tnsec += ((curpcc - lastpcc) * 1000000000) / ((struct rpb *)HWRPB_ADDR)->rpb_cc_freq;
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lastpcc = curpcc;
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return (tnsec / 1000000000);
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}
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