1 /* $NetBSD: proc.h,v 1.26 2004/02/21 04:31:40 junyoung 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. 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 * @(#)proc.h 7.1 (Berkeley) 5/15/91 32 */ 33 34 #ifndef _I386_PROC_H_ 35 #define _I386_PROC_H_ 36 37 #ifdef _KERNEL_OPT 38 #include "opt_noredzone.h" 39 #endif 40 41 #include <machine/frame.h> 42 43 /* 44 * Machine-dependent part of the proc structure for i386. 45 */ 46 struct mdlwp { 47 struct trapframe *md_regs; /* registers on current frame */ 48 int md_flags; /* machine-dependent flags */ 49 int md_tss_sel; /* TSS selector */ 50 }; 51 52 /* md_flags */ 53 #define MDL_USEDFPU 0x0001 /* has used the FPU */ 54 55 struct mdproc { 56 int md_flags; 57 void (*md_syscall)(struct trapframe *); 58 /* Syscall handling function */ 59 __volatile int md_astpending; /* AST pending for this process */ 60 }; 61 62 /* md_flags */ 63 #define MDP_USEDMTRR 0x0002 /* has set volatile MTRRs */ 64 65 /* kernel stack params */ 66 #ifndef NOREDZONE 67 /* override default for redzone */ 68 #define KSTACK_LOWEST_ADDR(l) \ 69 ((caddr_t)(l)->l_addr + PAGE_SIZE*2) 70 #define KSTACK_SIZE \ 71 (USPACE - PAGE_SIZE*2) 72 #endif 73 74 #endif /* _I386_PROC_H_ */ 75