sys/platform/pc64/amd64/systimer.c

   1 /*
   2  * Copyright (c) 2006 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Matthew Dillon <dillon@backplane.com>
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  * 3. Neither the name of The DragonFly Project nor the names of its
  18  *    contributors may be used to endorse or promote products derived
  19  *    from this software without specific, prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  24  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  25  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  27  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  28  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  29  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  30  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  31  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * $DragonFly: src/sys/platform/pc64/amd64/systimer.c,v 1.2 2007/09/24 03:24:45 yanyh Exp $
  35  */
  36
  37 #include <sys/types.h>
  38 #include <sys/systm.h>
  39 #include <sys/kernel.h>
  40 #include <sys/systimer.h>
  41 #include <sys/sysctl.h>
  42 #include <sys/signal.h>
  43 #include <sys/interrupt.h>
  44 #include <sys/bus.h>
  45 #include <sys/time.h>
  46 #include <machine/globaldata.h>
  47 #include <machine/md_var.h>
  48
  49 int adjkerntz;
  50 int wall_cmos_clock = 0;
  51
  52 /*
  53  * SYSTIMER IMPLEMENTATION
  54  */
  55 /*
  56  * Initialize the systimer subsystem, called from MI code in early boot.
  57  */
  58 void
  59 cpu_initclocks(void *arg __unused)
  60 {
  61 }
  62
  63 /*
  64  * Configure the interrupt for our core systimer.  Use the kqueue timer
  65  * support functions.
  66  */
  67 void
  68 cputimer_intr_config(struct cputimer *timer)
  69 {
  70 }
  71
  72 /*
  73  * Reload the interrupt for our core systimer.  Because the caller's
  74  * reload calculation can be negatively indexed, we need a minimal
  75  * check to ensure that a reasonable reload value is selected.
  76  */
  77 void
  78 cputimer_intr_reload(sysclock_t reload)
  79 {
  80 }
  81
  82 /*
  83  * Initialize the time of day register, based on the time base which is, e.g.
  84  * from a filesystem.
  85  */
  86 void
  87 inittodr(time_t base)
  88 {
  89 }
  90
  91 /*
  92  * Write system time back to the RTC
  93  */
  94 void
  95 resettodr(void)
  96 {
  97 }
  98
  99 void
 100 DELAY(int usec)
 101 {
 102 }
 103
 104 void
 105 DRIVERSLEEP(int usec)
 106 {
 107 }
 108