447b3772dc
in the original hardwired sysctl implementation. The buf size calculator still overflows an integer on machines with large KVA (eg: ia64) where the number of pages does not fit into an int. Use 'long' there. Change Maxmem and physmem and related variables to 'long', mostly for completeness. Machines are not likely to overflow 'int' pages in the near term, but then again, 640K ought to be enough for anybody. This comes for free on 32 bit machines, so why not?
96 lines
3.8 KiB
C
96 lines
3.8 KiB
C
/*-
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* Copyright (c) 1995 Bruce D. Evans.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the author nor the names of contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_MD_VAR_H_
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#define _MACHINE_MD_VAR_H_
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/*
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* Miscellaneous machine-dependent declarations.
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*/
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extern long Maxmem;
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extern u_int atdevbase; /* offset in virtual memory of ISA io mem */
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extern void (*bcopy_vector)(const void *from, void *to, size_t len);
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extern int busdma_swi_pending;
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extern int (*copyin_vector)(const void *udaddr, void *kaddr, size_t len);
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extern int (*copyout_vector)(const void *kaddr, void *udaddr, size_t len);
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extern u_int cpu_feature;
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extern u_int cpu_high;
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extern u_int cpu_id;
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extern u_int cpu_fxsr;
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extern char cpu_vendor[];
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extern u_int cyrix_did;
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extern uint16_t *elan_mmcr;
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extern char kstack[];
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#ifdef PC98
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extern int need_pre_dma_flush;
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extern int need_post_dma_flush;
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#endif
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extern void (*ovbcopy_vector)(const void *from, void *to, size_t len);
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extern char sigcode[];
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extern int szsigcode, szosigcode;
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typedef void alias_for_inthand_t(u_int cs, u_int ef, u_int esp, u_int ss);
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struct thread;
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struct reg;
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struct fpreg;
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struct dbreg;
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void bcopyb(const void *from, void *to, size_t len);
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void busdma_swi(void);
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void cpu_halt(void);
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void cpu_reset(void);
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void cpu_setregs(void);
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void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
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void doreti_iret(void) __asm(__STRING(doreti_iret));
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void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
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void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
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void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
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void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
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void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
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void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
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void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
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void fillw(int /*u_short*/ pat, void *base, size_t cnt);
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void i486_bzero(void *buf, size_t len);
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void i586_bcopy(const void *from, void *to, size_t len);
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void i586_bzero(void *buf, size_t len);
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int i586_copyin(const void *udaddr, void *kaddr, size_t len);
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int i586_copyout(const void *kaddr, void *udaddr, size_t len);
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void i686_pagezero(void *addr);
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void init_AMD_Elan_sc520(void);
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int is_physical_memory(vm_offset_t addr);
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u_long kvtop(void *addr);
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void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
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void swi_vm(void *);
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int user_dbreg_trap(void);
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#endif /* !_MACHINE_MD_VAR_H_ */
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