freebsd-dev/sys/i386/include/md_var.h
Dmitry Chagin 5c32146723 amd64: Eliminate write only cpu_fxsr.
Reviewed by:		kib
Differential Revision:	https://reviews.freebsd.org/D38289
MFC after:		1 week
2023-02-01 18:17:06 +03:00

86 lines
3.5 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1995 Bruce D. Evans.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _MACHINE_MD_VAR_H_
#define _MACHINE_MD_VAR_H_
#include <x86/x86_var.h>
extern u_int cpu_fxsr;
extern u_int cyrix_did;
#if defined(I586_CPU) && !defined(NO_F00F_HACK)
extern int has_f00f_bug;
#endif
#ifdef COMPAT_FREEBSD4
extern int szfreebsd4_sigcode;
#endif
#ifdef COMPAT_43
extern int szosigcode;
extern int sz_lcall_tramp;
#endif
extern vm_offset_t proc0kstack;
extern size_t setidt_disp;
struct segment_descriptor;
union savefpu;
int cp_slow0(vm_offset_t uva, size_t len, bool write,
void (*f)(vm_offset_t, void *), void *arg);
void cpu_switch_load_gs(void) __asm(__STRING(cpu_switch_load_gs));
void copyout_init_tramp(void);
void doreti_iret(void) __asm(__STRING(doreti_iret));
void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
void doreti_popl_ds(void) __asm(__STRING(doreti_popl_ds));
void doreti_popl_ds_fault(void) __asm(__STRING(doreti_popl_ds_fault));
void doreti_popl_es(void) __asm(__STRING(doreti_popl_es));
void doreti_popl_es_fault(void) __asm(__STRING(doreti_popl_es_fault));
void doreti_popl_fs(void) __asm(__STRING(doreti_popl_fs));
void doreti_popl_fs_fault(void) __asm(__STRING(doreti_popl_fs_fault));
void fill_based_sd(struct segment_descriptor *sdp, uint32_t base);
void i686_pagezero(void *addr);
void sse2_pagezero(void *addr);
int cpu_minidumpsys_nopae(struct dumperinfo *, const struct minidumpstate *);
int cpu_minidumpsys_pae(struct dumperinfo *, const struct minidumpstate *);
void init_AMD_Elan_sc520(void);
vm_paddr_t kvtop(void *addr);
void panicifcpuunsupported(void);
void ppro_reenable_apic(void);
void set_fsbase(struct thread *td, uint32_t base);
void set_gsbase(struct thread *td, uint32_t base);
void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int selec);
void setidt_nodisp(int idx, uintptr_t func, int typ, int dpl, int selec);
union savefpu *get_pcb_user_save_td(struct thread *td);
union savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
#endif /* !_MACHINE_MD_VAR_H_ */