1/* $NetBSD: psl.h,v 1.19 2016/07/30 06:27:45 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# define MIPS3_PSL_XFLAGS (MIPS3_SR_XX | MIPS_SR_KX) 52#else 53# define MIPS3_PSL_XFLAGS (0) 54#endif 55 56#define MIPS3_PSL_USERSET \ 57 (MIPS3_SR_KSU_USER | \ 58 MIPS3_PSL_XFLAGS | \ 59 MIPS_SR_INT_IE | \ 60 MIPS3_SR_EXL | \ 61 MIPS3_INT_MASK) 62 63#define MIPS3_USERMODE(ps) \ 64 (((ps) & MIPS3_SR_KSU_MASK) == MIPS3_SR_KSU_USER) 65 66/* 67 * mips1-specific definitions 68 */ 69#define MIPS1_PSL_LOWIPL (MIPS_INT_MASK | MIPS_SR_INT_IE) 70 71#define MIPS1_PSL_USERSET \ 72 (MIPS1_SR_KU_OLD | \ 73 MIPS1_SR_INT_ENA_OLD | \ 74 MIPS1_SR_KU_PREV | \ 75 MIPS1_SR_INT_ENA_PREV |\ 76 MIPS_INT_MASK) 77 78#define MIPS1_USERMODE(ps) \ 79 ((ps) & MIPS1_SR_KU_PREV) 80 81/* 82 * Choose mips3-only, mips1-only, or runtime-selected values. 83 */ 84 85#if defined(MIPS3_PLUS) && !defined(MIPS1) /* mips3 or greater only */ 86# define PSL_LOWIPL MIPS3_PSL_LOWIPL 87# define PSL_USERSET MIPS3_PSL_USERSET 88# define USERMODE(ps) MIPS3_USERMODE(ps) 89#endif /* mips3 only */ 90 91 92#if !defined(MIPS3_PLUS) && defined(MIPS1) /* mips1 only */ 93# define PSL_LOWIPL MIPS1_PSL_LOWIPL 94# define PSL_USERSET MIPS1_PSL_USERSET 95# define USERMODE(ps) MIPS1_USERMODE(ps) 96#endif /* mips1 only */ 97 98 99#if MIPS3_PLUS + MIPS1 > 1 100# define PSL_LOWIPL (CPUISMIPS3 ? MIPS3_PSL_LOWIPL : MIPS1_PSL_LOWIPL) 101# define PSL_USERSET (CPUISMIPS3 ? MIPS3_PSL_USERSET : MIPS1_PSL_USERSET) 102# define USERMODE(ps) (CPUISMIPS3 ? MIPS3_USERMODE(ps) : MIPS1_USERMODE(ps)) 103#endif 104