Save and restore the FP context in the signal stack frame.
[dragonfly.git] / sys / platform / vkernel / include / md_var.h
blobd775eab99341b5f4fd9ee0c6445c5f13c05467fb
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:
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.
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.
34 * $DragonFly: src/sys/platform/vkernel/include/md_var.h,v 1.22 2007/12/12 23:49:24 dillon Exp $
37 #ifndef _MACHINE_MD_VAR_H_
38 #define _MACHINE_MD_VAR_H_
40 #ifndef _SYS_TYPES_H_
41 #include <sys/types.h>
42 #endif
43 #ifndef _SYS_VKERNEL_H_
44 #include <sys/vkernel.h>
45 #endif
47 #define VKNETIF_MAX 16
48 #define VKDISK_MAX 16
50 struct vknetif_info {
51 int tap_fd;
52 int tap_unit;
53 in_addr_t netif_addr;
54 in_addr_t netif_mask;
57 struct vkdisk_info {
58 int fd;
59 int unit;
60 enum vkdisk_type { VKD_EMPTY, VKD_DISK, VKD_CD } type;
61 char fname[MAXPATHLEN];
64 extern char sigcode[];
65 extern int szsigcode;
66 extern vpte_t *KernelPTA; /* NOTE: Offset for direct VA translation */
67 extern vpte_t *KernelPTD;
68 extern vm_offset_t crashdumpmap;
69 extern int cpu_fxsr;
71 extern char cpu_vendor[]; /* XXX belongs in i386 */
72 extern u_int cpu_id; /* XXX belongs in i386 */
74 extern struct vkdisk_info DiskInfo[VKDISK_MAX];
75 extern int DiskNum;
76 extern int MemImageFd;
77 extern struct vknetif_info NetifInfo[VKNETIF_MAX];
78 extern int NetifNum;
79 extern int _ucodesel, _udatasel;
81 struct mdglobaldata;
82 struct __mcontext;
84 vpte_t *pmap_kpte(vm_offset_t va);
85 void cpu_gdinit (struct mdglobaldata *gd, int cpu);
87 void cpu_heavy_restore(void); /* cannot be called from C */
88 void cpu_lwkt_restore(void); /* cannot be called from C */
89 void cpu_idle_restore(void); /* cannot be called from C */
90 void cpu_kthread_restore(void); /* cannot be called from C */
91 void cpu_exit_switch (struct thread *next);
92 void cpu_setregs (void);
93 void cpu_idle (void);
94 void go_user (struct intrframe *frame);
96 void init_exceptions(void);
97 void init_kqueue(void);
98 void kern_trap(struct trapframe *);
99 void user_trap(struct trapframe *);
100 void syscall2 (struct trapframe *);
101 void vcons_set_mode(int);
102 int npxdna(struct trapframe *);
103 void npxpush(struct __mcontext *mctx);
104 void npxpop(struct __mcontext *mctx);
106 void signalintr(int intr);
108 struct kqueue_info;
109 struct kqueue_info *kqueue_add(int, void (*)(void *, struct intrframe *), void *);
110 void kqueue_del(struct kqueue_info *);
111 struct kqueue_info *kqueue_add_timer(void (*func)(void *, struct intrframe *), void *data);
112 void kqueue_reload_timer(struct kqueue_info *info, int ms);
115 #endif