1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1995 Bruce D. Evans.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the author nor the names of contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * $FreeBSD$
32 */
33
34#ifndef _MACHINE_MD_VAR_H_
35#define	_MACHINE_MD_VAR_H_
36
37#include <x86/x86_var.h>
38
39extern char	ctx_switch_xsave[];
40extern char	ctx_switch_xsave32[];
41extern int	hw_lower_amd64_sharedpage;
42extern int	hw_ibrs_disable;
43extern int	hw_ssb_disable;
44extern int	nmi_flush_l1d_sw;
45extern int	syscall_ret_l1d_flush_mode;
46
47extern vm_paddr_t intel_graphics_stolen_base;
48extern vm_paddr_t intel_graphics_stolen_size;
49
50extern int la57;
51
52/*
53 * The file "conf/ldscript.amd64" defines the symbol "kernphys".  Its
54 * value is the physical address at which the kernel is loaded.
55 */
56extern char kernphys[];
57
58struct	savefpu;
59struct	sysentvec;
60
61void	amd64_conf_fast_syscall(void);
62void	amd64_db_resume_dbreg(void);
63void	amd64_lower_shared_page(struct sysentvec *);
64void	amd64_bsp_pcpu_init1(struct pcpu *pc);
65void	amd64_bsp_pcpu_init2(uint64_t rsp0);
66void	amd64_bsp_ist_init(struct pcpu *pc);
67void	amd64_syscall(struct thread *td, int traced);
68void	amd64_syscall_ret_flush_l1d(int error);
69void	amd64_syscall_ret_flush_l1d_recalc(void);
70void	doreti_iret(void) __asm(__STRING(doreti_iret));
71void	doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
72void	flush_l1d_sw_abi(void);
73void	ld_ds(void) __asm(__STRING(ld_ds));
74void	ld_es(void) __asm(__STRING(ld_es));
75void	ld_fs(void) __asm(__STRING(ld_fs));
76void	ld_gs(void) __asm(__STRING(ld_gs));
77void	ld_fsbase(void) __asm(__STRING(ld_fsbase));
78void	ld_gsbase(void) __asm(__STRING(ld_gsbase));
79void	ds_load_fault(void) __asm(__STRING(ds_load_fault));
80void	es_load_fault(void) __asm(__STRING(es_load_fault));
81void	fs_load_fault(void) __asm(__STRING(fs_load_fault));
82void	gs_load_fault(void) __asm(__STRING(gs_load_fault));
83void	fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault));
84void	gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault));
85void	fpstate_drop(struct thread *td);
86void	pagezero(void *addr);
87void	setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist);
88void	set_top_of_stack_td(struct thread *td);
89struct savefpu *get_pcb_user_save_td(struct thread *td);
90struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
91void	pci_early_quirks(void);
92
93#endif /* !_MACHINE_MD_VAR_H_ */
94