1 /*- 2 * Copyright (c) 1995 Bruce D. Evans. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 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. 16 * 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 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 32 #ifndef _MACHINE_MD_VAR_H_ 33 #define _MACHINE_MD_VAR_H_ 34 35 /* 36 * Miscellaneous machine-dependent declarations. 37 */ 38 39 extern long Maxmem; 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_stdext_feature2; 53 extern u_int cpu_fxsr; 54 extern u_int cpu_high; 55 extern u_int cpu_id; 56 extern u_int cpu_max_ext_state_size; 57 extern u_int cpu_mxcsr_mask; 58 extern u_int cpu_procinfo; 59 extern u_int cpu_procinfo2; 60 extern char cpu_vendor[]; 61 extern u_int cpu_vendor_id; 62 extern u_int cpu_mon_mwait_flags; 63 extern u_int cpu_mon_min_size; 64 extern u_int cpu_mon_max_size; 65 extern u_int cpu_maxphyaddr; 66 extern u_int cyrix_did; 67 #if defined(I586_CPU) && !defined(NO_F00F_HACK) 68 extern int has_f00f_bug; 69 #endif 70 extern u_int hv_high; 71 extern char hv_vendor[]; 72 extern char kstack[]; 73 extern char sigcode[]; 74 extern int szsigcode; 75 #ifdef COMPAT_FREEBSD4 76 extern int szfreebsd4_sigcode; 77 #endif 78 #ifdef COMPAT_43 79 extern int szosigcode; 80 #endif 81 extern uint32_t *vm_page_dump; 82 extern int vm_page_dump_size; 83 extern int workaround_erratum383; 84 extern int _udatasel; 85 extern int _ucodesel; 86 extern int use_xsave; 87 extern uint64_t xsave_mask; 88 89 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss); 90 struct pcb; 91 union savefpu; 92 struct thread; 93 struct reg; 94 struct fpreg; 95 struct dbreg; 96 struct dumperinfo; 97 struct segment_descriptor; 98 99 void *alloc_fpusave(int flags); 100 void bcopyb(const void *from, void *to, size_t len); 101 void busdma_swi(void); 102 bool cpu_mwait_usable(void); 103 void cpu_probe_amdc1e(void); 104 void cpu_setregs(void); 105 void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs)); 106 void doreti_iret(void) __asm(__STRING(doreti_iret)); 107 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 108 void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds)); 109 void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault)); 110 void doreti_popl_es(void) __asm(__STRING(doreti_popl_es)); 111 void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault)); 112 void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs)); 113 void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault)); 114 void dump_add_page(vm_paddr_t); 115 void dump_drop_page(vm_paddr_t); 116 void finishidentcpu(void); 117 void fillw(int /*u_short*/ pat, void *base, size_t cnt); 118 void fill_based_sd(struct segment_descriptor *sdp, uint32_t base); 119 void initializecpu(void); 120 void initializecpucache(void); 121 void i686_pagezero(void *addr); 122 void sse2_pagezero(void *addr); 123 void init_AMD_Elan_sc520(void); 124 int is_physical_memory(vm_paddr_t addr); 125 int isa_nmi(int cd); 126 vm_paddr_t kvtop(void *addr); 127 void panicifcpuunsupported(void); 128 void ppro_reenable_apic(void); 129 void printcpuinfo(void); 130 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec); 131 int user_dbreg_trap(void); 132 int minidumpsys(struct dumperinfo *); 133 union savefpu *get_pcb_user_save_td(struct thread *td); 134 union savefpu *get_pcb_user_save_pcb(struct pcb *pcb); 135 struct pcb *get_pcb_td(struct thread *td); 136 137 #endif /* !_MACHINE_MD_VAR_H_ */ 138