1 /* $NetBSD: psl.h,v 1.8 1997/06/22 07:42:52 jonathan Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)psl.h 8.1 (Berkeley) 6/10/93 39 */ 40 41 /* 42 * Define PSL_LOWIPL, PSL_USERSET, PSL_USERCLR, USERMODE, BASEPRI 43 * for MI code, for MIPS1, MIPS3, or both, depending on the 44 * configured CPU types. 45 */ 46 47 #include <mips/cpuregs.h> 48 49 /* 50 * mips3-specific definitions 51 */ 52 #define MIPS3_PSL_LOWIPL (MIPS3_INT_MASK | MIPS_SR_INT_IE) 53 54 #define MIPS3_PSL_USERSET \ 55 (MIPS3_SR_KSU_USER | \ 56 MIPS_SR_INT_IE | \ 57 MIPS3_SR_EXL | \ 58 MIPS3_INT_MASK) 59 60 #define MIPS3_PSL_USERCLR \ 61 (MIPS_SR_COP_USABILITY |\ 62 MIPS_SR_BOOT_EXC_VEC | \ 63 MIPS_SR_TLB_SHUTDOWN | \ 64 MIPS_SR_PARITY_ERR | \ 65 MIPS_SR_CACHE_MISS | \ 66 MIPS_SR_PARITY_ZERO | \ 67 MIPS_SR_SWAP_CACHES | \ 68 MIPS_SR_ISOL_CACHES | \ 69 MIPS_SR_KU_CUR | \ 70 MIPS_SR_INT_IE | \ 71 MIPS_SR_MBZ) 72 73 #define MIPS3_USERMODE(ps) \ 74 (((ps) & MIPS3_SR_KSU_MASK) == MIPS3_SR_KSU_USER) 75 76 #define MIPS3_BASEPRI(ps) \ 77 (((ps) & (MIPS3_INT_MASK | MIPS_SR_INT_ENA_PREV)) \ 78 == (MIPS3_INT_MASK | MIPS_SR_INT_ENA_PREV)) 79 80 81 /* 82 * mips1-specific definitions 83 */ 84 #define MIPS1_PSL_LOWIPL (MIPS_INT_MASK | MIPS_SR_INT_IE) 85 86 #define MIPS1_PSL_USERSET \ 87 (MIPS1_SR_KU_OLD | \ 88 MIPS1_SR_INT_ENA_OLD | \ 89 MIPS1_SR_KU_PREV | \ 90 MIPS1_SR_INT_ENA_PREV |\ 91 MIPS_INT_MASK) 92 93 #define MIPS1_PSL_USERCLR \ 94 (MIPS_SR_COP_USABILITY |\ 95 MIPS_SR_BOOT_EXC_VEC | \ 96 MIPS_SR_TLB_SHUTDOWN | \ 97 MIPS_SR_PARITY_ERR | \ 98 MIPS_SR_CACHE_MISS | \ 99 MIPS_SR_PARITY_ZERO | \ 100 MIPS_SR_SWAP_CACHES | \ 101 MIPS_SR_ISOL_CACHES | \ 102 MIPS_SR_KU_CUR | \ 103 MIPS_SR_INT_IE | \ 104 MIPS_SR_MBZ) 105 106 #define MIPS1_USERMODE(ps) \ 107 ((ps) & MIPS1_SR_KU_PREV) 108 109 #define MIPS1_BASEPRI(ps) \ 110 (((ps) & (MIPS_INT_MASK | MIPS1_SR_INT_ENA_PREV)) == \ 111 (MIPS_INT_MASK | MIPS1_SR_INT_ENA_PREV)) 112 113 114 /* 115 * Choose mips3-only, mips1-only, or runtime-selected values. 116 */ 117 118 #if defined(MIPS3) && !defined(MIPS1) /* mips3 only */ 119 # define PSL_LOWIPL MIPS3_PSL_LOWIPL 120 # define PSL_USERSET MIPS3_PSL_USERSET 121 # define PSL_USERCLR MIPS3_PSL_USERCLR 122 # define USERMODE(ps) MIPS3_USERMODE(ps) 123 # define BASEPRI(ps) MIPS3_BASEPRI(ps) 124 #endif /* mips3 only */ 125 126 127 #if !defined(MIPS3) && defined(MIPS1) /* mips1 only */ 128 # define PSL_LOWIPL MIPS1_PSL_LOWIPL 129 # define PSL_USERSET MIPS1_PSL_USERSET 130 # define PSL_USERCLR MIPS1_PSL_USERCLR 131 # define USERMODE(ps) MIPS1_USERMODE(ps) 132 # define BASEPRI(ps) MIPS1_BASEPRI(ps) 133 #endif /* mips1 only */ 134 135 136 #if MIPS3 + MIPS1 > 1 137 # define PSL_LOWIPL \ 138 ((cpu_arch == 3) ? MIPS3_PSL_LOWIPL : MIPS1_PSL_LOWIPL) 139 #define PSL_USERSET \ 140 ((cpu_arch == 3) ? MIPS3_PSL_USERSET : MIPS1_PSL_USERSET) 141 # define PSL_USRCLR \ 142 ((cpu_arch == 3) ? MIPS3_PSL_USRCLR : MIPS1_PSL_USRCLR) 143 # define USERMODE(ps) \ 144 ((cpu_arch == 3) ? MIPS3_USERMODE(ps) : MIPS1_USERMODE(ps)) 145 # define BASEPRI(ps) \ 146 ((cpu_arch == 3) ? MIPS3_BASEPRI(ps) : MIPS1_BASEPRI(ps)) 147 #endif 148