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/* $OpenBSD: psl.h,v 1.19 2011/06/08 22:57:59 kettenis Exp $ */
/* $NetBSD: psl.h,v 1.30 1996/05/13 01:28:05 mycroft Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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.
* 3. 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.
*
* @(#)psl.h 5.2 (Berkeley) 1/18/91
*/
#ifndef _MACHINE_PSL_H_
#define _MACHINE_PSL_H_
/*
* 386 processor status longword.
*/
#define PSL_C 0x00000001 /* carry flag */
#define PSL_PF 0x00000004 /* parity flag */
#define PSL_AF 0x00000010 /* auxiliary carry flag */
#define PSL_Z 0x00000040 /* zero flag */
#define PSL_N 0x00000080 /* sign flag */
#define PSL_T 0x00000100 /* trap flag */
#define PSL_I 0x00000200 /* interrupt enable flag */
#define PSL_D 0x00000400 /* direction flag */
#define PSL_V 0x00000800 /* overflow flag */
#define PSL_IOPL 0x00003000 /* i/o privilege level */
#define PSL_NT 0x00004000 /* nested task */
#define PSL_RF 0x00010000 /* resume flag */
#define PSL_VM 0x00020000 /* virtual 8086 mode */
#define PSL_AC 0x00040000 /* alignment check flag */
#define PSL_VIF 0x00080000 /* virtual interrupt enable flag */
#define PSL_VIP 0x00100000 /* virtual interrupt pending flag */
#define PSL_ID 0x00200000 /* identification flag */
#define PSL_XCRYPT 0x40000000 /* VIA xcrypt: operation loaded */
#define PSL_MBO 0x00000002 /* must be one bits */
#define PSL_MBZ 0xffc08028 /* must be zero bits */
#define PSL_USERSET (PSL_MBO | PSL_I)
#ifdef VM86
#define PSL_USERSTATIC (PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VIF | PSL_VIP)
#else
#define PSL_USERSTATIC (PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VM | PSL_VIF | PSL_VIP)
#endif
#ifdef _KERNEL
#include <machine/intr.h>
#ifndef _LOCORE
#include <sys/evcount.h>
/*
* Interrupt handler chains. isa_intr_establish() inserts a handler into
* the list. The handler is called with its (single) argument.
*/
struct intrhand {
int (*ih_fun)(void *);
void *ih_arg;
int ih_level;
struct intrhand *ih_next;
int ih_pin;
int ih_irq;
struct evcount ih_count;
int ih_vec;
};
extern int intr_shared_edge; /* This system has shared edge interrupts */
#endif /* _LOCORE */
#endif /* _KERNEL */
#endif /* !_MACHINE_PSL_H_ */
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