/* $NetBSD: clockvar.h,v 1.9 2009/05/12 14:38:26 cegger Exp $ */ /*- * Copyright (c) 1996, 2002 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _MVME_CLOCKVAR_H #define _MVME_CLOCKVAR_H #include /* * Definitions exported to ASIC-specific clock attachment. */ extern struct evcnt clock_profcnt; extern struct evcnt clock_statcnt; extern int clock_statvar; extern int clock_statmin; struct clock_attach_args { void (*ca_initfunc)(void *, int, int); void *ca_arg; }; void clock_config(device_t, struct clock_attach_args *, struct evcnt *); /* * Macro to compute a new randomized interval. The intervals are * uniformly distributed on [statint - statvar / 2, statint + statvar / 2], * and therefore have mean statint, giving a stathz frequency clock. * * This is gratuitously stolen from sparc/sparc/clock.c */ #define CLOCK_NEWINT(statvar, statmin) ({ \ u_long r, var = (statvar); \ do { r = random() & (var - 1); } while (r == 0); \ (statmin + r); \ }) /* * Sun chose the year `68' as their base count, so that * cl_year==0 means 1968. */ #define YEAR0 1968 /* * interrupt level for clock */ #define CLOCK_LEVEL 5 #endif /* _MVME_CLOCKVAR_H */ t nowrap'>AgeCommit message (Expand)Author 2010-11-13Don't pull in the whole uvm(9) API to access only PAGE_SIZE anduebayasi 2007-10-19machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.had 2006-11-16__unused removal on arguments; approved by core.christos 2006-10-12- sprinkle __unused on function decls.christos 2005-12-11merge ktrace-lwp.christos 2005-05-31avoid variable shadow.christos 2005-05-30- add missing constchristos 2005-02-27nuke trailing whitespaceperry 2003-11-02Fix some typos. From Tom Cosgrove via jmc@openbsd.wiz 2001-11-15don't need <sys/types.h> when including <sys/param.h>lukem 2001-11-13add/cleanup RCSIDlukem 2001-06-09Patches from takashi.yamamoto@bigfoot.com in kern/13139.briggs 2001-04-30remove some lint, including ansifying funcslukem 2001-04-25Pull up the thorpej_scsipi branch to main branch.bouyer 2000-06-28remove include of <vm/vm.h>. <vm/vm.h> -> <uvm/uvm_extern.h>mrg 2000-06-26remove redundant vm includes.mrg 1999-08-07Fix a problem uncovered by attempting to compile on the Alpha: overrun_bufthorpej 1999-06-12Clean up some stuffdante 1999-06-06Add support for ISA, EISA and ISApnp cardsdante 1999-02-25Fix AdvanSys Narrow driver to work on Alphadante