x86_64: Add setidt(), which setup an IDT entry on the specified cpu
[dragonfly.git] / sys / platform / pc64 / include / md_var.h
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1/*-
2 * Copyright (c) 1995 Bruce D. Evans.
c8fe38ae 3 * Copyright (c) 2008 The DragonFly Project.
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4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the author nor the names of contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $FreeBSD: src/sys/amd64/include/md_var.h,v 1.71 2004/01/29 00:05:03 peter Exp $
c8fe38ae 31 * $DragonFly: src/sys/platform/pc64/include/md_var.h,v 1.5 2008/08/29 17:07:17 dillon Exp $
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32 */
33
34#ifndef _MACHINE_MD_VAR_H_
35#define _MACHINE_MD_VAR_H_
36
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37#include <machine/globaldata.h>
38
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39/*
40 * Miscellaneous machine-dependent declarations.
41 */
42
39923942 43extern u_long atdevbase; /* offset in virtual memory of ISA io mem */
39923942 44extern int busdma_swi_pending;
e774ca6d 45extern void (*cpu_idle_hook)(void);
bfc09ba0 46extern void cpu_idle(void);
39923942 47extern u_int cpu_exthigh;
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48extern u_int via_feature_rng;
49extern u_int via_feature_xcrypt;
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50extern u_int amd_feature;
51extern u_int amd_feature2;
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52extern u_int cpu_fxsr;
53extern u_int cpu_high;
54extern u_int cpu_id;
55extern u_int cpu_procinfo;
c8fe38ae 56extern u_int cpu_procinfo2;
39923942 57extern char cpu_vendor[];
a2a636cc 58extern u_int cpu_vendor_id;
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59extern char kstack[];
60extern char sigcode[];
61extern int szsigcode;
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62extern uint64_t *vm_page_dump;
63extern int vm_page_dump_size;
64
39923942 65
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66typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
67struct thread;
68struct reg;
69struct fpreg;
70struct dbreg;
1b251f0a 71struct __mcontext;
b24cd69c 72struct dumperinfo;
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73
74void busdma_swi(void);
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75void cpu_gdinit (struct mdglobaldata *gd, int cpu);
76void cpu_idle_restore (void); /* cannot be called from C */
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77void cpu_setregs(void);
78void doreti_iret(void) __asm(__STRING(doreti_iret));
79void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
80void enable_sse(void);
81void fillw(int /*u_short*/ pat, void *base, size_t cnt);
82void pagezero(void *addr);
c8fe38ae 83void pagecopy(void *from, void *to);
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84void setidt_global(int idx, alias_for_inthand_t *func,
85 int typ, int dpl, int ist);
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86void setidt(int idx, alias_for_inthand_t *func,
87 int typ, int dpl, int ist, int cpu);
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88int user_dbreg_trap(void);
89void fpstate_drop(struct thread *td);
90
8a671a57 91int npxdna(void);
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92void npxpush(struct __mcontext *mctx);
93void npxpop(struct __mcontext *mctx);
94
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95void cpu_heavy_restore (void);
96void cpu_kthread_restore (void);/* cannot be called from C */
97
cc9b6223 98thread_t cpu_exit_switch (struct thread *next);
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99
100void syscall2 (struct trapframe *);
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101void minidumpsys(struct dumperinfo *);
102void dump_add_page(vm_paddr_t);
103void dump_drop_page(vm_paddr_t);
d7f50089 104
39923942 105#endif /* !_MACHINE_MD_VAR_H_ */