1 /* $NetBSD: psl.h,v 1.18 2009/12/14 00:46:05 matt 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)psl.h 8.1 (Berkeley) 6/10/93 35 */ 36 37 /* 38 * Define PSL_LOWIPL, PSL_USERSET, USERMODE for MI code, for 39 * MIPS1, MIPS3+, or both, depending on the configured CPU types. 40 */ 41 42 #include <machine/cdefs.h> /* for API selection */ 43 #include <mips/cpuregs.h> 44 45 /* 46 * mips3 (or greater)-specific definitions 47 */ 48 #define MIPS3_PSL_LOWIPL (MIPS3_INT_MASK | MIPS_SR_INT_IE) 49 50 #if !defined(__mips_o32) 51 # ifdef _LP64 52 # define MIPS3_PSL_XFLAGS (MIPS3_SR_XX | MIPS_SR_KX) 53 # else 54 # define MIPS3_PSL_XFLAGS (MIPS3_SR_XX) 55 # endif 56 #else 57 # define MIPS3_PSL_XFLAGS (0) 58 #endif 59 60 #define MIPS3_PSL_USERSET \ 61 (MIPS3_SR_KSU_USER | \ 62 MIPS3_PSL_XFLAGS | \ 63 MIPS_SR_INT_IE | \ 64 MIPS3_SR_EXL | \ 65 MIPS3_INT_MASK) 66 67 #define MIPS3_USERMODE(ps) \ 68 (((ps) & MIPS3_SR_KSU_MASK) == MIPS3_SR_KSU_USER) 69 70 /* 71 * mips1-specific definitions 72 */ 73 #define MIPS1_PSL_LOWIPL (MIPS_INT_MASK | MIPS_SR_INT_IE) 74 75 #define MIPS1_PSL_USERSET \ 76 (MIPS1_SR_KU_OLD | \ 77 MIPS1_SR_INT_ENA_OLD | \ 78 MIPS1_SR_KU_PREV | \ 79 MIPS1_SR_INT_ENA_PREV |\ 80 MIPS_INT_MASK) 81 82 #define MIPS1_USERMODE(ps) \ 83 ((ps) & MIPS1_SR_KU_PREV) 84 85 /* 86 * Choose mips3-only, mips1-only, or runtime-selected values. 87 */ 88 89 #if defined(MIPS3_PLUS) && !defined(MIPS1) /* mips3 or greater only */ 90 # define PSL_LOWIPL MIPS3_PSL_LOWIPL 91 # define PSL_USERSET MIPS3_PSL_USERSET 92 # define USERMODE(ps) MIPS3_USERMODE(ps) 93 #endif /* mips3 only */ 94 95 96 #if !defined(MIPS3_PLUS) && defined(MIPS1) /* mips1 only */ 97 # define PSL_LOWIPL MIPS1_PSL_LOWIPL 98 # define PSL_USERSET MIPS1_PSL_USERSET 99 # define USERMODE(ps) MIPS1_USERMODE(ps) 100 #endif /* mips1 only */ 101 102 103 #if MIPS3_PLUS + MIPS1 > 1 104 # define PSL_LOWIPL (CPUISMIPS3 ? MIPS3_PSL_LOWIPL : MIPS1_PSL_LOWIPL) 105 # define PSL_USERSET (CPUISMIPS3 ? MIPS3_PSL_USERSET : MIPS1_PSL_USERSET) 106 # define USERMODE(ps) (CPUISMIPS3 ? MIPS3_USERMODE(ps) : MIPS1_USERMODE(ps)) 107 #endif 108