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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
/* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */
/* All Rights Reserved */
/*
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_PSW_H
#define _SYS_PSW_H
#ifdef __cplusplus
extern "C" {
#endif
#ifndef _ASM
/* Flags Register */
typedef struct flags {
uint_t fl_cf : 1, /* carry/borrow */
: 1, /* reserved */
fl_pf : 1, /* parity */
: 1, /* reserved */
fl_af : 1, /* carry/borrow */
: 1, /* reserved */
fl_zf : 1, /* zero */
fl_sf : 1, /* sign */
fl_tf : 1, /* trace */
fl_if : 1, /* interrupt enable */
fl_df : 1, /* direction */
fl_of : 1, /* overflow */
fl_iopl : 2, /* I/O privilege level */
fl_nt : 1, /* nested task */
: 1, /* reserved */
fl_rf : 1, /* reset */
fl_vm : 1, /* virtual 86 mode */
fl_res : 14; /* reserved */
} flags_t;
#endif /* !_ASM */
#define PS_C 0x0001 /* carry bit */
#define PS_MB1 0x0002 /* unused; must be 1. */
#define PS_P 0x0004 /* parity bit */
#define PS_AC 0x0010 /* auxiliary carry bit */
#define PS_Z 0x0040 /* zero bit */
#define PS_N 0x0080 /* negative bit */
#define PS_T 0x0100 /* trace enable bit */
#define PS_IE 0x0200 /* interrupt enable bit */
#define PS_D 0x0400 /* direction bit */
#define PS_V 0x0800 /* overflow bit */
#define PS_IOPL 0x3000 /* I/O privilege level */
#define PS_NT 0x4000 /* nested task flag */
#define PS_RF 0x10000 /* restore flag */
#define PS_VM 0x20000 /* virtual 86 mode flag */
#define PS_ACHK 0x40000 /* alignment check enable (486) */
#define PS_VINT 0x80000 /* virtual interrupt flag */
#define PS_VINTP 0x100000 /* virtual interrupt pending */
#define PS_ID 0x200000 /* ID flag */
#define PS_ICC (PS_C|PS_AC|PS_Z|PS_N) /* integer condition codes */
#define FMT_FLAGS_REG \
"\20\26id\25vip\24vif\23ac\22vm\21rf" \
"\17nt\14of\13df\12if\11tf\10sf\7zf\5af\3pf\1cf"
#define PSL_USER 0x202 /* initial user FLAGS */
/* user variable PS bits */
#define PSL_USERMASK (PS_ICC|PS_D|PS_T|PS_V|PS_P|PS_ACHK|PS_NT)
/* PS bits changeable by the sahf instruction */
#define PSL_LSAHFMASK (PS_ICC|PS_P)
/*
* kernel flags settings
*
* Note that the kernel's SMAP protection relies on PS_ACHK not being present in
* the following two definitions. See uts/intel/ml/copy.s for more
* information on SMAP.
*/
#define F_OFF 0x2 /* interrupts off */
#define F_ON 0x202 /* interrupts on */
#ifndef _ASM
typedef int psw_t;
#endif
#include <sys/tss.h>
#include <sys/segments.h> /* selector definitions */
#define USERMODE(cs) ((uint16_t)(cs) != KCS_SEL)
#include <sys/spl.h>
#ifdef __cplusplus
}
#endif
#endif /* _SYS_PSW_H */
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