2 * Copyright (c) 1995 Bruce D. Evans.
3 * Copyright (c) 2008 The DragonFly Project.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 * $FreeBSD: src/sys/amd64/include/md_var.h,v 1.71 2004/01/29 00:05:03 peter Exp $
33 #ifndef _MACHINE_MD_VAR_H_
34 #define _MACHINE_MD_VAR_H_
36 #include <sys/types.h>
38 #include <machine/globaldata.h>
41 * Miscellaneous machine-dependent declarations.
44 extern u_long atdevbase; /* offset in virtual memory of ISA io mem */
45 extern int busdma_swi_pending;
46 extern void (*cpu_idle_hook)(void);
48 extern u_int cpu_exthigh;
49 extern u_int via_feature_rng;
50 extern u_int via_feature_xcrypt;
51 extern u_int amd_feature;
52 extern u_int amd_feature2;
53 extern u_long cpu_ia32_arch_caps;
54 extern u_int cpu_clflush_line_size;
55 extern u_int cpu_stdext_feature;
56 extern u_int cpu_stdext_feature2;
57 extern u_int cpu_stdext_feature3;
58 extern u_int cpu_thermal_feature;
59 extern u_int cpu_mwait_feature;
60 extern u_int cpu_mwait_extemu;
61 extern u_int cpu_fxsr;
62 extern u_int cpu_xsave;
63 extern u_int cpu_high;
65 extern u_int cpu_procinfo;
66 extern u_int cpu_procinfo2;
67 extern char cpu_vendor[];
68 extern u_int cpu_vendor_id;
70 extern char sigcode[];
72 extern uint64_t *vm_page_dump;
73 extern vm_offset_t vm_page_dump_size;
76 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
84 void busdma_swi(void);
85 void cpu_gdinit (struct mdglobaldata *gd, int cpu);
86 void cpu_idle_restore (void); /* cannot be called from C */
87 void cpu_setregs(void);
88 void doreti_iret(void) __asm(__STRING(doreti_iret));
89 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
90 void enable_sse(void);
91 void fillw(int /*u_short*/ pat, void *base, size_t cnt);
92 void pagezero(void *addr);
93 void setidt_global(int idx, alias_for_inthand_t *func,
94 int typ, int dpl, int ist);
95 void setidt(int idx, alias_for_inthand_t *func,
96 int typ, int dpl, int ist, int cpu);
97 int user_dbreg_trap(void);
98 void fpstate_drop(struct thread *td);
101 void npxdna_quick(struct thread *td);
102 void npxpush(struct __mcontext *mctx);
103 void npxpop(struct __mcontext *mctx);
104 void kernel_fpu_begin(void);
105 void kernel_fpu_end(void);
107 void cpu_heavy_restore (void);
108 void cpu_kthread_restore (void);/* cannot be called from C */
110 thread_t cpu_exit_switch (struct thread *next);
112 void syscall2 (struct trapframe *);
113 void trap_handle_userenter(struct thread *);
114 void trap_handle_userexit(struct trapframe *, int);
115 void minidumpsys(struct dumperinfo *);
116 void dump_add_page(vm_paddr_t);
117 void dump_drop_page(vm_paddr_t);
118 boolean_t cpu_mwait_hint_valid(uint32_t);
119 void cpu_mwait_cx_no_bmsts(void);
120 void cpu_mwait_cx_no_bmarb(void);
122 #endif /* !_MACHINE_MD_VAR_H_ */