sys/platform/pc64/amd64/machintr.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/machintr.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/machintr.h>
  41 #include <sys/errno.h>
  42 #include <sys/mman.h>
  43 #include <sys/globaldata.h>
  44 #include <sys/interrupt.h>
  45 #include <stdio.h>
  46 #include <signal.h>
  47 #include <machine/globaldata.h>
  48 #include <machine/md_var.h>
  49 #include <sys/thread2.h>
  50
  51 /*
  52  * Interrupt Subsystem ABI
  53  */
  54
  55 static void dummy_intrdis(int);
  56 static void dummy_intren(int);
  57 static int dummy_vectorctl(int, int, int);
  58 static int dummy_setvar(int, const void *);
  59 static int dummy_getvar(int, void *);
  60 static void dummy_finalize(void);
  61 static void dummy_intrcleanup(void);
  62
  63 struct machintr_abi MachIntrABI = {
  64         MACHINTR_GENERIC,
  65         .intrdis =      dummy_intrdis,
  66         .intren =       dummy_intren,
  67         .vectorctl =    dummy_vectorctl,
  68         .setvar =       dummy_setvar,
  69         .getvar =       dummy_getvar,
  70         .finalize =     dummy_finalize,
  71         .cleanup =      dummy_intrcleanup
  72 };
  73
  74 static void
  75 dummy_intrdis(int intr)
  76 {
  77 }
  78
  79 static void
  80 dummy_intren(int intr)
  81 {
  82 }
  83
  84 static int
  85 dummy_vectorctl(int op, int intr, int flags)
  86 {
  87         return (0);
  88         /* return (EOPNOTSUPP); */
  89 }
  90
  91 static int
  92 dummy_setvar(int varid, const void *buf)
  93 {
  94         return (ENOENT);
  95 }
  96
  97 static int
  98 dummy_getvar(int varid, void *buf)
  99 {
 100         return (ENOENT);
 101 }
 102
 103 static void
 104 dummy_finalize(void)
 105 {
 106 }
 107
 108 static void
 109 dummy_intrcleanup(void)
 110 {
 111 }
 112
 113 /*
 114  * Process pending interrupts
 115  */
 116 void
 117 splz(void)
 118 {
 119 }
 120
 121 /*
 122  * Allows an unprotected signal handler or mailbox to signal an interrupt
 123  */
 124 void
 125 signalintr(int intr)
 126 {
 127 }
 128
 129 void
 130 cpu_disable_intr(void)
 131 {
 132 }
 133
 134 void
 135 cpu_invlpg(void *addr)
 136 {
 137 }
 138
 139 void
 140 cpu_invltlb(void)
 141 {
 142 }
 143