| /*- |
| * Copyright (c) 1991 Regents of the University of California. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * from: @(#)proc.h 7.1 (Berkeley) 5/15/91 |
| * $FreeBSD$ |
| */ |
| |
| #ifndef _BSD_MACHINE_PROC_H_ |
| #define _BSD_MACHINE_PROC_H_ |
| |
| #include <machine/bsd_segments.h> |
| |
| struct proc_ldt { |
| caddr_t ldt_base; |
| int ldt_refcnt; |
| }; |
| |
| /* |
| * Machine-dependent part of the proc structure for AMD64. |
| */ |
| struct mdthread { |
| int md_spinlock_count; /* (k) */ |
| register_t md_saved_flags; /* (k) */ |
| }; |
| |
| struct mdproc { |
| struct proc_ldt *md_ldt; /* (t) per-process ldt */ |
| struct system_segment_descriptor md_ldt_sd; |
| }; |
| |
| #ifdef _FREEBSD_KERNEL |
| |
| /* Get the current kernel thread stack usage. */ |
| #define GET_STACK_USAGE(total, used) do { \ |
| struct thread *td = curthread; \ |
| (total) = td->td_kstack_pages * PAGE_SIZE; \ |
| (used) = (char *)td->td_kstack + \ |
| td->td_kstack_pages * PAGE_SIZE - \ |
| (char *)&td; \ |
| } while (0) |
| |
| void set_user_ldt(struct mdproc *); |
| struct proc_ldt *user_ldt_alloc(struct proc *, int); |
| void user_ldt_free(struct thread *); |
| void user_ldt_deref(struct proc_ldt *); |
| struct sysarch_args; |
| int sysarch_ldt(struct thread *td, struct sysarch_args *uap, int uap_space); |
| int amd64_set_ldt_data(struct thread *td, int start, int num, |
| struct user_segment_descriptor *descs); |
| |
| extern struct mtx dt_lock; |
| extern int max_ldt_segment; |
| |
| #endif /* _FREEBSD_KERNEL */ |
| |
| #endif /* !_BSD_MACHINE_PROC_H_ */ |
