1 /*- 2 * Copyright (c) 1991 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * from: @(#)proc.h 7.1 (Berkeley) 5/15/91 30 * $FreeBSD$ 31 */ 32 33 #ifndef _MACHINE_PROC_H_ 34 #define _MACHINE_PROC_H_ 35 36 #include <sys/queue.h> 37 #include <machine/segments.h> 38 39 /* 40 * List of locks 41 * k - only accessed by curthread 42 * pp - pmap.c:invl_gen_mtx 43 */ 44 45 struct proc_ldt { 46 caddr_t ldt_base; 47 int ldt_refcnt; 48 }; 49 50 struct pmap_invl_gen { 51 u_long gen; /* (k) */ 52 LIST_ENTRY(pmap_invl_gen) link; /* (pp) */ 53 }; 54 55 /* 56 * Machine-dependent part of the proc structure for AMD64. 57 */ 58 struct mdthread { 59 int md_spinlock_count; /* (k) */ 60 register_t md_saved_flags; /* (k) */ 61 register_t md_spurflt_addr; /* (k) Spurious page fault address. */ 62 struct pmap_invl_gen md_invl_gen; 63 }; 64 65 struct mdproc { 66 struct proc_ldt *md_ldt; /* (t) per-process ldt */ 67 struct system_segment_descriptor md_ldt_sd; 68 }; 69 70 #define KINFO_PROC_SIZE 1088 71 #define KINFO_PROC32_SIZE 768 72 73 struct syscall_args { 74 u_int code; 75 struct sysent *callp; 76 register_t args[8]; 77 int narg; 78 }; 79 80 #ifdef _KERNEL 81 82 /* Get the current kernel thread stack usage. */ 83 #define GET_STACK_USAGE(total, used) do { \ 84 struct thread *td = curthread; \ 85 (total) = td->td_kstack_pages * PAGE_SIZE; \ 86 (used) = (char *)td->td_kstack + \ 87 td->td_kstack_pages * PAGE_SIZE - \ 88 (char *)&td; \ 89 } while (0) 90 91 void set_user_ldt(struct mdproc *); 92 struct proc_ldt *user_ldt_alloc(struct proc *, int); 93 void user_ldt_free(struct thread *); 94 void user_ldt_deref(struct proc_ldt *); 95 struct sysarch_args; 96 int sysarch_ldt(struct thread *td, struct sysarch_args *uap, int uap_space); 97 int amd64_set_ldt_data(struct thread *td, int start, int num, 98 struct user_segment_descriptor *descs); 99 100 extern struct mtx dt_lock; 101 extern int max_ldt_segment; 102 #endif /* _KERNEL */ 103 104 #endif /* !_MACHINE_PROC_H_ */ 105