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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/i386/include/md_var.h
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/*-

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 * SPDX-License-Identifier: BSD-3-Clause

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 *

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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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#ifndef _MACHINE_MD_VAR_H_

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#define	_MACHINE_MD_VAR_H_

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#include <x86/x86_var.h>

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extern	u_int	cpu_fxsr;

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extern	u_int	cyrix_did;

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#if defined(I586_CPU) && !defined(NO_F00F_HACK)

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extern	int	has_f00f_bug;

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#endif

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#ifdef COMPAT_FREEBSD4

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extern	int	szfreebsd4_sigcode;

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#endif

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#ifdef COMPAT_43

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extern	int	szosigcode;

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extern	int	sz_lcall_tramp;

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#endif

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extern  vm_offset_t proc0kstack;

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extern	size_t setidt_disp;

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struct	segment_descriptor;

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union savefpu;

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int	cp_slow0(vm_offset_t uva, size_t len, bool write,

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	    void (*f)(vm_offset_t, void *), void *arg);

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void	cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));

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void	copyout_init_tramp(void);

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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	fill_based_sd(struct segment_descriptor *sdp, uint32_t base);

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void	i686_pagezero(void *addr);

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void	sse2_pagezero(void *addr);

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int	cpu_minidumpsys_nopae(struct dumperinfo *, const struct minidumpstate *);

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int	cpu_minidumpsys_pae(struct dumperinfo *, const struct minidumpstate *);

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void	init_AMD_Elan_sc520(void);

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vm_paddr_t kvtop(void *addr);

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void	panicifcpuunsupported(void);

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void	ppro_reenable_apic(void);

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void	set_fsbase(struct thread *td, uint32_t base);

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void	set_gsbase(struct thread *td, uint32_t base);

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void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);

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void	setidt_nodisp(int idx, uintptr_t func, int typ, int dpl, int selec);

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union savefpu *get_pcb_user_save_td(struct thread *td);

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union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);

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#endif /* !_MACHINE_MD_VAR_H_ */

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