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 #ifdef __i386__
35 #include <i386/md_var.h>
36 #else /* !__i386__ */
37
38 #ifndef _MACHINE_MD_VAR_H_
39 #define _MACHINE_MD_VAR_H_
40
41 #include <x86/x86_var.h>
42
43 extern char ctx_switch_xsave[];
44 extern char ctx_switch_xsave32[];
45 extern int hw_lower_amd64_sharedpage;
46 extern int hw_ibrs_disable;
47 extern int hw_ssb_disable;
48 extern int nmi_flush_l1d_sw;
49 extern int syscall_ret_l1d_flush_mode;
50
51 extern vm_paddr_t intel_graphics_stolen_base;
52 extern vm_paddr_t intel_graphics_stolen_size;
53
54 extern int la57;
55
56 extern vm_paddr_t kernphys;
57 extern vm_paddr_t KERNend;
58
59 extern bool efi_boot;
60
61 struct __mcontext;
62 struct savefpu;
63 struct sysentvec;
64
65 void amd64_conf_fast_syscall(void);
66 void amd64_db_resume_dbreg(void);
67 vm_paddr_t amd64_loadaddr(void);
68 void amd64_lower_shared_page(struct sysentvec *);
69 void amd64_bsp_pcpu_init1(struct pcpu *pc);
70 void amd64_bsp_pcpu_init2(uint64_t rsp0);
71 void amd64_bsp_ist_init(struct pcpu *pc);
72 void amd64_syscall(struct thread *td, int traced);
73 void amd64_syscall_ret_flush_l1d(int error);
74 void amd64_syscall_ret_flush_l1d_recalc(void);
75 void cpu_init_small_core(void);
76 void doreti_iret(void) __asm(__STRING(doreti_iret));
77 void doreti_iret_fault(void) __asm(__STRING(doreti_iret_fault));
78 void flush_l1d_sw_abi(void);
79 void ld_ds(void) __asm(__STRING(ld_ds));
80 void ld_es(void) __asm(__STRING(ld_es));
81 void ld_fs(void) __asm(__STRING(ld_fs));
82 void ld_gs(void) __asm(__STRING(ld_gs));
83 void ld_fsbase(void) __asm(__STRING(ld_fsbase));
84 void ld_gsbase(void) __asm(__STRING(ld_gsbase));
85 void ds_load_fault(void) __asm(__STRING(ds_load_fault));
86 void es_load_fault(void) __asm(__STRING(es_load_fault));
87 void fs_load_fault(void) __asm(__STRING(fs_load_fault));
88 void gs_load_fault(void) __asm(__STRING(gs_load_fault));
89 void fsbase_load_fault(void) __asm(__STRING(fsbase_load_fault));
90 void gsbase_load_fault(void) __asm(__STRING(gsbase_load_fault));
91 void fpstate_drop(struct thread *td);
92 void pagezero(void *addr);
93 void setidt(int idx, alias_for_inthand_t *func, int typ, int dpl, int ist);
94 void set_top_of_stack_td(struct thread *td);
95 struct savefpu *get_pcb_user_save_td(struct thread *td);
96 struct savefpu *get_pcb_user_save_pcb(struct pcb *pcb);
97 void pci_early_quirks(void);
98 void get_fpcontext(struct thread *td, struct __mcontext *mcp,
99 char **xfpusave, size_t *xfpusave_len);
100 int set_fpcontext(struct thread *td, struct __mcontext *mcp,
101 char *xfpustate, size_t xfpustate_len);
102
103 #endif /* !_MACHINE_MD_VAR_H_ */
104
105 #endif /* __i386__ */
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