1 /* $NetBSD: proc.h,v 1.20 2003/06/23 12:56:07 martin Exp $ */ 2 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)proc.h 7.1 (Berkeley) 5/15/91 36 */ 37 38 #ifndef _I386_PROC_H_ 39 #define _I386_PROC_H_ 40 41 #ifdef _KERNEL_OPT 42 #include "opt_noredzone.h" 43 #endif 44 45 #include <machine/frame.h> 46 47 /* 48 * Machine-dependent part of the proc structure for i386. 49 */ 50 struct mdlwp { 51 struct trapframe *md_regs; /* registers on current frame */ 52 int md_flags; /* machine-dependent flags */ 53 int md_tss_sel; /* TSS selector */ 54 }; 55 56 /* md_flags */ 57 #define MDP_USEDFPU 0x0001 /* has used the FPU */ 58 59 struct mdproc { 60 /* Syscall handling function */ 61 int md_flags; 62 void (*md_syscall) __P((struct trapframe)); 63 __volatile int md_astpending; /* AST pending for this process */ 64 }; 65 66 #endif /* _I386_PROC_H_ */ 67 68 /* md_flags */ 69 #define MDP_USEDFPU 0x0001 /* has used the FPU */ 70 #define MDP_USEDMTRR 0x0002 /* has set volatile MTRRs */ 71 72 /* kernel stack params */ 73 #ifndef NOREDZONE 74 /* override default for redzone */ 75 #define KSTACK_LOWEST_ADDR(l) \ 76 ((caddr_t)(l)->l_addr + PAGE_SIZE*2) 77 #define KSTACK_SIZE \ 78 (USPACE - PAGE_SIZE*2) 79 #endif 80