1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1991 Regents of the University of California. 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 University nor the names of its 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 REGENTS 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 REGENTS 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 * from: @(#)proc.h 7.1 (Berkeley) 5/15/91 32 * $FreeBSD$ 33 */ 34 35 #ifndef _MACHINE_PROC_H_ 36 #define _MACHINE_PROC_H_ 37 38 #include <sys/queue.h> 39 #include <machine/segments.h> 40 41 /* 42 * List of locks 43 * k - only accessed by curthread 44 * pp - pmap.c:invl_gen_mtx 45 */ 46 47 struct proc_ldt { 48 caddr_t ldt_base; 49 int ldt_refcnt; 50 }; 51 52 struct pmap_invl_gen { 53 u_long gen; /* (k) */ 54 LIST_ENTRY(pmap_invl_gen) link; /* (pp) */ 55 }; 56 57 /* 58 * Machine-dependent part of the proc structure for AMD64. 59 */ 60 struct mdthread { 61 int md_spinlock_count; /* (k) */ 62 register_t md_saved_flags; /* (k) */ 63 register_t md_spurflt_addr; /* (k) Spurious page fault address. */ 64 struct pmap_invl_gen md_invl_gen; 65 register_t md_efirt_tmp; /* (k) */ 66 int md_efirt_dis_pf; /* (k) */ 67 }; 68 69 struct mdproc { 70 struct proc_ldt *md_ldt; /* (t) per-process ldt */ 71 struct system_segment_descriptor md_ldt_sd; 72 }; 73 74 #define KINFO_PROC_SIZE 1088 75 #define KINFO_PROC32_SIZE 768 76 77 struct syscall_args { 78 u_int code; 79 struct sysent *callp; 80 register_t args[8]; 81 int narg; 82 }; 83 84 #ifdef _KERNEL 85 86 /* Get the current kernel thread stack usage. */ 87 #define GET_STACK_USAGE(total, used) do { \ 88 struct thread *td = curthread; \ 89 (total) = td->td_kstack_pages * PAGE_SIZE; \ 90 (used) = (char *)td->td_kstack + \ 91 td->td_kstack_pages * PAGE_SIZE - \ 92 (char *)&td; \ 93 } while (0) 94 95 struct proc_ldt *user_ldt_alloc(struct proc *, int); 96 void user_ldt_free(struct thread *); 97 struct sysarch_args; 98 int sysarch_ldt(struct thread *td, struct sysarch_args *uap, int uap_space); 99 int amd64_set_ldt_data(struct thread *td, int start, int num, 100 struct user_segment_descriptor *descs); 101 102 extern struct mtx dt_lock; 103 extern int max_ldt_segment; 104 #endif /* _KERNEL */ 105 106 #endif /* !_MACHINE_PROC_H_ */ 107