108 lines
3.7 KiB
C
108 lines
3.7 KiB
C
/* $NetBSD: psl.h,v 1.15 2002/03/05 15:38:33 simonb Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Ralph Campbell.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)psl.h 8.1 (Berkeley) 6/10/93
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*/
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/*
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* Define PSL_LOWIPL, PSL_USERSET, USERMODE for MI code, for
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* MIPS1, MIPS3+, or both, depending on the configured CPU types.
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*/
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#include <machine/cdefs.h> /* for API selection */
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#include <mips/cpuregs.h>
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/*
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* mips3 (or greater)-specific definitions
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*/
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#define MIPS3_PSL_LOWIPL (MIPS3_INT_MASK | MIPS_SR_INT_IE)
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#if defined(_MIPS_BSD_API) && _MIPS_BSD_API != _MIPS_BSD_API_LP32
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#define MIPS3_PSL_XFLAGS (MIPS3_SR_XX | MIPS3_SR_UX)
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#else
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#define MIPS3_PSL_XFLAGS (0)
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#endif
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#define MIPS3_PSL_USERSET \
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(MIPS3_SR_KSU_USER | \
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MIPS3_PSL_XFLAGS | \
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MIPS_SR_INT_IE | \
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MIPS3_SR_EXL | \
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MIPS3_INT_MASK)
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#define MIPS3_USERMODE(ps) \
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(((ps) & MIPS3_SR_KSU_MASK) == MIPS3_SR_KSU_USER)
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/*
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* mips1-specific definitions
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*/
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#define MIPS1_PSL_LOWIPL (MIPS_INT_MASK | MIPS_SR_INT_IE)
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#define MIPS1_PSL_USERSET \
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(MIPS1_SR_KU_OLD | \
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MIPS1_SR_INT_ENA_OLD | \
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MIPS1_SR_KU_PREV | \
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MIPS1_SR_INT_ENA_PREV |\
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MIPS_INT_MASK)
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#define MIPS1_USERMODE(ps) \
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((ps) & MIPS1_SR_KU_PREV)
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/*
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* Choose mips3-only, mips1-only, or runtime-selected values.
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*/
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#if defined(MIPS3_PLUS) && !defined(MIPS1) /* mips3 or greater only */
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# define PSL_LOWIPL MIPS3_PSL_LOWIPL
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# define PSL_USERSET MIPS3_PSL_USERSET
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# define USERMODE(ps) MIPS3_USERMODE(ps)
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#endif /* mips3 only */
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#if !defined(MIPS3_PLUS) && defined(MIPS1) /* mips1 only */
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# define PSL_LOWIPL MIPS1_PSL_LOWIPL
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# define PSL_USERSET MIPS1_PSL_USERSET
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# define USERMODE(ps) MIPS1_USERMODE(ps)
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#endif /* mips1 only */
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#if MIPS3_PLUS + MIPS1 > 1
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# define PSL_LOWIPL (CPUISMIPS3 ? MIPS3_PSL_LOWIPL : MIPS1_PSL_LOWIPL)
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# define PSL_USERSET (CPUISMIPS3 ? MIPS3_PSL_USERSET : MIPS1_PSL_USERSET)
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# define USERMODE(ps) (CPUISMIPS3 ? MIPS3_USERMODE(ps) : MIPS1_USERMODE(ps))
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#endif
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