2 * Copyright (c) 1995 Bruce D. Evans.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the author nor the names of contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #ifndef _MACHINE_MD_VAR_H_
33 #define _MACHINE_MD_VAR_H_
36 * Miscellaneous machine-dependent declarations.
40 extern u_int basemem; /* PA of original top of base memory */
41 extern int busdma_swi_pending;
42 extern u_int cpu_exthigh;
43 extern u_int cpu_feature;
44 extern u_int cpu_feature2;
45 extern u_int amd_feature;
46 extern u_int amd_feature2;
47 extern u_int amd_pminfo;
48 extern u_int via_feature_rng;
49 extern u_int via_feature_xcrypt;
50 extern u_int cpu_clflush_line_size;
51 extern u_int cpu_stdext_feature;
52 extern u_int cpu_fxsr;
53 extern u_int cpu_high;
55 extern u_int cpu_max_ext_state_size;
56 extern u_int cpu_mxcsr_mask;
57 extern u_int cpu_procinfo;
58 extern u_int cpu_procinfo2;
59 extern char cpu_vendor[];
60 extern u_int cpu_vendor_id;
61 extern u_int cpu_mon_mwait_flags;
62 extern u_int cpu_mon_min_size;
63 extern u_int cpu_mon_max_size;
64 extern u_int cyrix_did;
65 #if defined(I586_CPU) && !defined(NO_F00F_HACK)
66 extern int has_f00f_bug;
69 extern char hv_vendor[];
71 extern char sigcode[];
73 #ifdef COMPAT_FREEBSD4
74 extern int szfreebsd4_sigcode;
77 extern int szosigcode;
79 extern uint32_t *vm_page_dump;
80 extern int vm_page_dump_size;
81 extern int workaround_erratum383;
85 extern uint64_t xsave_mask;
87 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
96 void *alloc_fpusave(int flags);
97 void bcopyb(const void *from, void *to, size_t len);
98 void busdma_swi(void);
99 void cpu_setregs(void);
100 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
101 void doreti_iret(void) __asm(__STRING(doreti_iret));
102 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
103 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
104 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
105 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
106 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
107 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
108 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
109 void dump_add_page(vm_paddr_t);
110 void dump_drop_page(vm_paddr_t);
111 void finishidentcpu(void);
112 void fillw(int /*u_short*/ pat, void *base, size_t cnt);
113 void initializecpu(void);
114 void initializecpucache(void);
115 void i686_pagezero(void *addr);
116 void sse2_pagezero(void *addr);
117 void init_AMD_Elan_sc520(void);
118 int is_physical_memory(vm_paddr_t addr);
120 vm_paddr_t kvtop(void *addr);
121 void panicifcpuunsupported(void);
122 void ppro_reenable_apic(void);
123 void printcpuinfo(void);
124 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
125 int user_dbreg_trap(void);
126 int minidumpsys(struct dumperinfo *);
127 union savefpu *get_pcb_user_save_td(struct thread *td);
128 union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
129 struct pcb *get_pcb_td(struct thread *td);
131 #endif /* !_MACHINE_MD_VAR_H_ */