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_fxsr; 52 extern u_int cpu_high; 53 extern u_int cpu_id; 54 extern u_int cpu_mxcsr_mask; 55 extern u_int cpu_procinfo; 56 extern u_int cpu_procinfo2; 57 extern char cpu_vendor[]; 58 extern u_int cpu_vendor_id; 59 extern char kstack[]; 60 extern char sigcode[]; 61 extern int szsigcode; 62 extern uint64_t *vm_page_dump; 63 extern int vm_page_dump_size; 64 extern int workaround_erratum383; 65 extern int _udatasel; 66 extern int _ucodesel; 67 extern int _ucode32sel; 68 extern int _ufssel; 69 extern int _ugssel; 70 71 typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss); 72 struct thread; 73 struct reg; 74 struct fpreg; 75 struct dbreg; 76 struct dumperinfo; 77 78 void amd64_syscall(struct thread *td, int traced); 79 void busdma_swi(void); 80 void cpu_setregs(void); 81 void doreti_iret(void) __asm(__STRING(doreti_iret)); 82 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault)); 83 void ld_ds(void) __asm(__STRING(ld_ds)); 84 void ld_es(void) __asm(__STRING(ld_es)); 85 void ld_fs(void) __asm(__STRING(ld_fs)); 86 void ld_gs(void) __asm(__STRING(ld_gs)); 87 void ld_fsbase(void) __asm(__STRING(ld_fsbase)); 88 void ld_gsbase(void) __asm(__STRING(ld_gsbase)); 89 void ds_load_fault(void) __asm(__STRING(ds_load_fault)); 90 void es_load_fault(void) __asm(__STRING(es_load_fault)); 91 void fs_load_fault(void) __asm(__STRING(fs_load_fault)); 92 void gs_load_fault(void) __asm(__STRING(gs_load_fault)); 93 void fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault)); 94 void gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault)); 95 void dump_add_page(vm_paddr_t); 96 void dump_drop_page(vm_paddr_t); 97 void initializecpu(void); 98 void initializecpucache(void); 99 void fillw(int /*u_short*/ pat, void *base, size_t cnt); 100 void fpstate_drop(struct thread *td); 101 int is_physical_memory(vm_paddr_t addr); 102 int isa_nmi(int cd); 103 void pagecopy(void *from, void *to); 104 void pagezero(void *addr); 105 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist); 106 int user_dbreg_trap(void); 107 void minidumpsys(struct dumperinfo *); 108 109 #endif /* !_MACHINE_MD_VAR_H_ */ 110