2 * Copyright (c) 2006 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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.
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
34 * $DragonFly: src/sys/platform/vkernel/platform/machintr.c,v 1.7 2007/01/09 06:04:59 dillon Exp $
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>
43 #include <sys/globaldata.h>
44 #include <sys/interrupt.h>
47 #include <machine/globaldata.h>
50 * Interrupt Subsystem ABI
53 static void dummy_intrdis(int);
54 static void dummy_intren(int);
55 static int dummy_vectorctl(int, int, int);
56 static int dummy_setvar(int, const void *);
57 static int dummy_getvar(int, void *);
58 static void dummy_finalize(void);
60 struct machintr_abi MachIntrABI = {
71 dummy_intrdis(int intr)
76 dummy_intren(int intr)
81 dummy_vectorctl(int op, int intr, int flags)
87 dummy_setvar(int varid, const void *buf)
93 dummy_getvar(int varid, void *buf)
104 * Process pending interrupts
109 struct mdglobaldata *gd = mdcpu;
112 atomic_clear_int_nonlocked(&gd->mi.gd_reqflags, RQF_INTPEND);
113 while ((irq = ffs(gd->gd_spending)) != 0) {
115 atomic_clear_int(&gd->gd_spending, 1 << irq);
116 irq += FIRST_SOFTINT;
119 while ((irq = ffs(gd->gd_fpending)) != 0) {
121 atomic_clear_int(&gd->gd_fpending, 1 << irq);
127 cpu_disable_intr(void)
133 cpu_enable_intr(void)
139 cpu_invlpg(void *addr)
141 madvise(addr, PAGE_SIZE, MADV_INVAL);
147 madvise((void *)KvaStart, KvaEnd - KvaStart, MADV_INVAL);