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Annotation of sys/arch/i386/include/psl.h, Revision 1.1.1.1

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_ */