186cb007fSWarner Losh /*- 251369649SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause 351369649SPedro F. Giffuni * 45b81b6b3SRodney W. Grimes * Copyright (c) 1991 Regents of the University of California. 55b81b6b3SRodney W. Grimes * All rights reserved. 65b81b6b3SRodney W. Grimes * 75b81b6b3SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 85b81b6b3SRodney W. Grimes * modification, are permitted provided that the following conditions 95b81b6b3SRodney W. Grimes * are met: 105b81b6b3SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 115b81b6b3SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 125b81b6b3SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 135b81b6b3SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 145b81b6b3SRodney W. Grimes * documentation and/or other materials provided with the distribution. 15fbbd9655SWarner Losh * 3. Neither the name of the University nor the names of its contributors 165b81b6b3SRodney W. Grimes * may be used to endorse or promote products derived from this software 175b81b6b3SRodney W. Grimes * without specific prior written permission. 185b81b6b3SRodney W. Grimes * 195b81b6b3SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 205b81b6b3SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 215b81b6b3SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 225b81b6b3SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 235b81b6b3SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 245b81b6b3SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 255b81b6b3SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 265b81b6b3SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 275b81b6b3SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 285b81b6b3SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 295b81b6b3SRodney W. Grimes * SUCH DAMAGE. 305b81b6b3SRodney W. Grimes */ 315b81b6b3SRodney W. Grimes 326e393973SGarrett Wollman #ifndef _MACHINE_PROC_H_ 336f486a55SPeter Wemm #define _MACHINE_PROC_H_ 346e393973SGarrett Wollman 3524db0459SJohn Baldwin #include <machine/segments.h> 3624db0459SJohn Baldwin 3724db0459SJohn Baldwin struct proc_ldt { 3824db0459SJohn Baldwin caddr_t ldt_base; 3924db0459SJohn Baldwin int ldt_len; 4024db0459SJohn Baldwin int ldt_refcnt; 4124db0459SJohn Baldwin u_long ldt_active; 4224db0459SJohn Baldwin struct segment_descriptor ldt_sd; 4324db0459SJohn Baldwin }; 445206bca1SLuoqi Chen 455b81b6b3SRodney W. Grimes /* 469368fc20SNate Williams * Machine-dependent part of the proc structure for i386. 470ad5e7f3SJeff Roberson * Table of MD locks: 480ad5e7f3SJeff Roberson * t - Descriptor tables lock 495b81b6b3SRodney W. Grimes */ 50b40ce416SJulian Elischer struct mdthread { 51c6a37e84SJohn Baldwin int md_spinlock_count; /* (k) */ 52c6a37e84SJohn Baldwin register_t md_saved_flags; /* (k) */ 535730afc9SAlan Cox register_t md_spurflt_addr; /* (k) Spurious page fault address. */ 54b40ce416SJulian Elischer }; 55b40ce416SJulian Elischer 565b81b6b3SRodney W. Grimes struct mdproc { 570ad5e7f3SJeff Roberson struct proc_ldt *md_ldt; /* (t) per-process ldt */ 585b81b6b3SRodney W. Grimes }; 595b81b6b3SRodney W. Grimes 60ed780687SKonstantin Belousov #define KINFO_PROC_SIZE 768 61ed780687SKonstantin Belousov 6224db0459SJohn Baldwin #ifdef _KERNEL 6324db0459SJohn Baldwin 64*8bc792b3SMitchell Horne #include <machine/md_var.h> 65*8bc792b3SMitchell Horne 66b63dc6adSAlfred Perlstein void set_user_ldt(struct mdproc *); 67b63dc6adSAlfred Perlstein struct proc_ldt *user_ldt_alloc(struct mdproc *, int); 68b63dc6adSAlfred Perlstein void user_ldt_free(struct thread *); 699719da13SKonstantin Belousov void user_ldt_deref(struct proc_ldt *pldt); 7024db0459SJohn Baldwin 710ad5e7f3SJeff Roberson extern struct mtx dt_lock; 7224db0459SJohn Baldwin #endif /* _KERNEL */ 7324db0459SJohn Baldwin 746f486a55SPeter Wemm #endif /* !_MACHINE_PROC_H_ */ 75