Annotation of sys/arch/i386/include/psl.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: psl.h,v 1.16 2004/06/28 01:41:53 aaron Exp $ */
! 2: /* $NetBSD: psl.h,v 1.30 1996/05/13 01:28:05 mycroft Exp $ */
! 3:
! 4: /*-
! 5: * Copyright (c) 1990 The Regents of the University of California.
! 6: * All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to Berkeley by
! 9: * William Jolitz.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. 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: * @(#)psl.h 5.2 (Berkeley) 1/18/91
! 36: */
! 37:
! 38: #ifndef _I386_PSL_H_
! 39: #define _I386_PSL_H_
! 40:
! 41: /*
! 42: * 386 processor status longword.
! 43: */
! 44: #define PSL_C 0x00000001 /* carry flag */
! 45: #define PSL_PF 0x00000004 /* parity flag */
! 46: #define PSL_AF 0x00000010 /* auxiliary carry flag */
! 47: #define PSL_Z 0x00000040 /* zero flag */
! 48: #define PSL_N 0x00000080 /* sign flag */
! 49: #define PSL_T 0x00000100 /* trap flag */
! 50: #define PSL_I 0x00000200 /* interrupt enable flag */
! 51: #define PSL_D 0x00000400 /* direction flag */
! 52: #define PSL_V 0x00000800 /* overflow flag */
! 53: #define PSL_IOPL 0x00003000 /* i/o privilege level */
! 54: #define PSL_NT 0x00004000 /* nested task */
! 55: #define PSL_RF 0x00010000 /* resume flag */
! 56: #define PSL_VM 0x00020000 /* virtual 8086 mode */
! 57: #define PSL_AC 0x00040000 /* alignment check flag */
! 58: #define PSL_VIF 0x00080000 /* virtual interrupt enable flag */
! 59: #define PSL_VIP 0x00100000 /* virtual interrupt pending flag */
! 60: #define PSL_ID 0x00200000 /* identification flag */
! 61: #define PSL_XCRYPT 0x40000000 /* VIA xcrypt: operation loaded */
! 62:
! 63: #define PSL_MBO 0x00000002 /* must be one bits */
! 64: #define PSL_MBZ 0xffc08028 /* must be zero bits */
! 65:
! 66: #define PSL_USERSET (PSL_MBO | PSL_I)
! 67: #ifdef VM86
! 68: #define PSL_USERSTATIC (PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VIF | PSL_VIP)
! 69: #else
! 70: #define PSL_USERSTATIC (PSL_MBO | PSL_MBZ | PSL_I | PSL_IOPL | PSL_NT | PSL_VM | PSL_VIF | PSL_VIP)
! 71: #endif
! 72:
! 73: #ifdef _KERNEL
! 74: #include <machine/intr.h>
! 75:
! 76: #ifndef _LOCORE
! 77:
! 78: #include <sys/evcount.h>
! 79:
! 80: /*
! 81: * Interrupt handler chains. isa_intr_establish() inserts a handler into
! 82: * the list. The handler is called with its (single) argument.
! 83: */
! 84:
! 85: struct intrhand {
! 86: int (*ih_fun)(void *);
! 87: void *ih_arg;
! 88: struct intrhand *ih_next;
! 89: int ih_level;
! 90: int ih_irq;
! 91: struct evcount ih_count;
! 92: };
! 93:
! 94: #endif /* _LOCORE */
! 95: #endif /* _KERNEL */
! 96:
! 97: #endif /* !_I386_PSL_H_ */
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