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; 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; 54 extern u_int cpu_id; 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 char ctx_switch_xsave[]; 62 extern char kstack[]; 63 extern char sigcode[]; 64 extern int szsigcode; 65 extern uint64_t *vm_page_dump; 66 extern int vm_page_dump_size; 67 extern int workaround_erratum383; 68 extern int _udatasel; 69 extern int _ucodesel; 70 extern int _ucode32sel; 71 extern int _ufssel; 72 extern int _ugssel; 73 extern int use_xsave; 74 extern uint64_t xsave_mask; 75 76 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss); 77 struct pcb; 78 struct savefpu; 79 struct thread; 80 struct reg; 81 struct fpreg; 82 struct dbreg; 83 struct dumperinfo; 84 85 void *alloc_fpusave(int flags); 86 void amd64_syscall(struct thread *td, int traced); 87 void busdma_swi(void); 88 void cpu_setregs(void); 89 void ctx_fpusave(void *); 90 void doreti_iret(void) __asm(__STRING(doreti_iret)); 91 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 92 void ld_ds(void) __asm(__STRING(ld_ds)); 93 void ld_es(void) __asm(__STRING(ld_es)); 94 void ld_fs(void) __asm(__STRING(ld_fs)); 95 void ld_gs(void) __asm(__STRING(ld_gs)); 96 void ld_fsbase(void) __asm(__STRING(ld_fsbase)); 97 void ld_gsbase(void) __asm(__STRING(ld_gsbase)); 98 void ds_load_fault(void) __asm(__STRING(ds_load_fault)); 99 void es_load_fault(void) __asm(__STRING(es_load_fault)); 100 void fs_load_fault(void) __asm(__STRING(fs_load_fault)); 101 void gs_load_fault(void) __asm(__STRING(gs_load_fault)); 102 void fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault)); 103 void gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault)); 104 void dump_add_page(vm_paddr_t); 105 void dump_drop_page(vm_paddr_t); 106 void initializecpu(void); 107 void initializecpucache(void); 108 void fillw(int /*u_short*/ pat, void *base, size_t cnt); 109 void fpstate_drop(struct thread *td); 110 int is_physical_memory(vm_paddr_t addr); 111 int isa_nmi(int cd); 112 void pagecopy(void *from, void *to); 113 void pagezero(void *addr); 114 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist); 115 int user_dbreg_trap(void); 116 void minidumpsys(struct dumperinfo *); 117 struct savefpu *get_pcb_user_save_td(struct thread *td); 118 struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb); 119 struct pcb *get_pcb_td(struct thread *td); 120 121 #endif /* !_MACHINE_MD_VAR_H_ */ 122