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