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 _X86_X86_VAR_H_ 33 #define _X86_X86_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_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 char ctx_switch_xsave[]; 67 extern u_int hv_high; 68 extern char hv_vendor[]; 69 extern char kstack[]; 70 extern char sigcode[]; 71 extern int szsigcode; 72 extern int vm_page_dump_size; 73 extern int workaround_erratum383; 74 extern int _udatasel; 75 extern int _ucodesel; 76 extern int _ucode32sel; 77 extern int _ufssel; 78 extern int _ugssel; 79 extern int use_xsave; 80 extern uint64_t xsave_mask; 81 82 struct pcb; 83 struct thread; 84 struct reg; 85 struct fpreg; 86 struct dbreg; 87 struct dumperinfo; 88 89 void *alloc_fpusave(int flags); 90 void busdma_swi(void); 91 bool cpu_mwait_usable(void); 92 void cpu_probe_amdc1e(void); 93 void cpu_setregs(void); 94 void dump_add_page(vm_paddr_t); 95 void dump_drop_page(vm_paddr_t); 96 void identify_cpu(void); 97 void initializecpu(void); 98 void initializecpucache(void); 99 bool intel_fix_cpuid(void); 100 void fillw(int /*u_short*/ pat, void *base, size_t cnt); 101 int is_physical_memory(vm_paddr_t addr); 102 int isa_nmi(int cd); 103 void panicifcpuunsupported(void); 104 void pagecopy(void *from, void *to); 105 void printcpuinfo(void); 106 int user_dbreg_trap(void); 107 int minidumpsys(struct dumperinfo *); 108 struct pcb *get_pcb_td(struct thread *td); 109 110 #endif 111