NetBSD/sys/arch/mips/include/psl.h

148 lines
4.6 KiB
C

/* $NetBSD: psl.h,v 1.8 1997/06/22 07:42:52 jonathan Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Ralph Campbell.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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 8.1 (Berkeley) 6/10/93
*/
/*
* Define PSL_LOWIPL, PSL_USERSET, PSL_USERCLR, USERMODE, BASEPRI
* for MI code, for MIPS1, MIPS3, or both, depending on the
* configured CPU types.
*/
#include <mips/cpuregs.h>
/*
* mips3-specific definitions
*/
#define MIPS3_PSL_LOWIPL (MIPS3_INT_MASK | MIPS_SR_INT_IE)
#define MIPS3_PSL_USERSET \
(MIPS3_SR_KSU_USER | \
MIPS_SR_INT_IE | \
MIPS3_SR_EXL | \
MIPS3_INT_MASK)
#define MIPS3_PSL_USERCLR \
(MIPS_SR_COP_USABILITY |\
MIPS_SR_BOOT_EXC_VEC | \
MIPS_SR_TLB_SHUTDOWN | \
MIPS_SR_PARITY_ERR | \
MIPS_SR_CACHE_MISS | \
MIPS_SR_PARITY_ZERO | \
MIPS_SR_SWAP_CACHES | \
MIPS_SR_ISOL_CACHES | \
MIPS_SR_KU_CUR | \
MIPS_SR_INT_IE | \
MIPS_SR_MBZ)
#define MIPS3_USERMODE(ps) \
(((ps) & MIPS3_SR_KSU_MASK) == MIPS3_SR_KSU_USER)
#define MIPS3_BASEPRI(ps) \
(((ps) & (MIPS3_INT_MASK | MIPS_SR_INT_ENA_PREV)) \
== (MIPS3_INT_MASK | MIPS_SR_INT_ENA_PREV))
/*
* mips1-specific definitions
*/
#define MIPS1_PSL_LOWIPL (MIPS_INT_MASK | MIPS_SR_INT_IE)
#define MIPS1_PSL_USERSET \
(MIPS1_SR_KU_OLD | \
MIPS1_SR_INT_ENA_OLD | \
MIPS1_SR_KU_PREV | \
MIPS1_SR_INT_ENA_PREV |\
MIPS_INT_MASK)
#define MIPS1_PSL_USERCLR \
(MIPS_SR_COP_USABILITY |\
MIPS_SR_BOOT_EXC_VEC | \
MIPS_SR_TLB_SHUTDOWN | \
MIPS_SR_PARITY_ERR | \
MIPS_SR_CACHE_MISS | \
MIPS_SR_PARITY_ZERO | \
MIPS_SR_SWAP_CACHES | \
MIPS_SR_ISOL_CACHES | \
MIPS_SR_KU_CUR | \
MIPS_SR_INT_IE | \
MIPS_SR_MBZ)
#define MIPS1_USERMODE(ps) \
((ps) & MIPS1_SR_KU_PREV)
#define MIPS1_BASEPRI(ps) \
(((ps) & (MIPS_INT_MASK | MIPS1_SR_INT_ENA_PREV)) == \
(MIPS_INT_MASK | MIPS1_SR_INT_ENA_PREV))
/*
* Choose mips3-only, mips1-only, or runtime-selected values.
*/
#if defined(MIPS3) && !defined(MIPS1) /* mips3 only */
# define PSL_LOWIPL MIPS3_PSL_LOWIPL
# define PSL_USERSET MIPS3_PSL_USERSET
# define PSL_USERCLR MIPS3_PSL_USERCLR
# define USERMODE(ps) MIPS3_USERMODE(ps)
# define BASEPRI(ps) MIPS3_BASEPRI(ps)
#endif /* mips3 only */
#if !defined(MIPS3) && defined(MIPS1) /* mips1 only */
# define PSL_LOWIPL MIPS1_PSL_LOWIPL
# define PSL_USERSET MIPS1_PSL_USERSET
# define PSL_USERCLR MIPS1_PSL_USERCLR
# define USERMODE(ps) MIPS1_USERMODE(ps)
# define BASEPRI(ps) MIPS1_BASEPRI(ps)
#endif /* mips1 only */
#if MIPS3 + MIPS1 > 1
# define PSL_LOWIPL \
((cpu_arch == 3) ? MIPS3_PSL_LOWIPL : MIPS1_PSL_LOWIPL)
#define PSL_USERSET \
((cpu_arch == 3) ? MIPS3_PSL_USERSET : MIPS1_PSL_USERSET)
# define PSL_USRCLR \
((cpu_arch == 3) ? MIPS3_PSL_USRCLR : MIPS1_PSL_USRCLR)
# define USERMODE(ps) \
((cpu_arch == 3) ? MIPS3_USERMODE(ps) : MIPS1_USERMODE(ps))
# define BASEPRI(ps) \
((cpu_arch == 3) ? MIPS3_BASEPRI(ps) : MIPS1_BASEPRI(ps))
#endif