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-rw-r--r--sys/amd64/isa/icu.h161
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diff --git a/sys/amd64/isa/icu.h b/sys/amd64/isa/icu.h
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-/*-
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * William Jolitz.
- *
- * 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.
- *
- * from: @(#)icu.h 5.6 (Berkeley) 5/9/91
- * $Id: icu.h,v 1.15 1997/07/22 20:12:05 fsmp Exp $
- */
-
-/*
- * AT/386 Interrupt Control constants
- * W. Jolitz 8/89
- */
-
-#ifndef _I386_ISA_ICU_H_
-#define _I386_ISA_ICU_H_
-
-#ifndef LOCORE
-
-#ifdef APIC_IO
-
-/*
-#define MP_SAFE
- * Note:
- * Most of the SMP equivilants of the icu macros are coded
- * elsewhere in an MP-safe fashion.
- * In particular note that the 'imen' variable is opaque.
- * DO NOT access imen directly, use INTREN()/INTRDIS().
- */
-
-void INTREN __P((u_int));
-void INTRDIS __P((u_int));
-#define INTRMASK(msk,s) (msk |= (s))
-#define INTRUNMASK(msk,s) (msk &= ~(s))
-
-#else /* APIC_IO */
-
-/*
- * Interrupt "level" mechanism variables, masks, and macros
- */
-extern unsigned imen; /* interrupt mask enable */
-
-#define INTREN(s) (imen &= ~(s), SET_ICUS())
-#define INTRDIS(s) (imen |= (s), SET_ICUS())
-#define INTRMASK(msk,s) (msk |= (s))
-#define INTRUNMASK(msk,s) (msk &= ~(s))
-
-#if 0
-#ifdef PC98
-#define SET_ICUS() (outb(IO_ICU1 + 2, imen), outb(IU_ICU2 + 2, imen >> 8))
-#define INTRGET() ((inb(IO_ICU2) << 8 | inb(IO_ICU1)) & 0xffff)
-#else /* IBM-PC */
-#define SET_ICUS() (outb(IO_ICU1 + 1, imen), outb(IU_ICU2 + 1, imen >> 8))
-#define INTRGET() ((inb(IO_ICU2) << 8 | inb(IO_ICU1)) & 0xffff)
-#endif /* PC98 */
-#else
-/*
- * XXX - IO_ICU* are defined in isa.h, not icu.h, and nothing much bothers to
- * include isa.h, while too many things include icu.h.
- */
-#ifdef PC98
-#define SET_ICUS() (outb(0x02, imen), outb(0x0a, imen >> 8))
-/* XXX is this correct? */
-#define INTRGET() ((inb(0x0a) << 8 | inb(0x02)) & 0xffff)
-#else
-#define SET_ICUS() (outb(0x21, imen), outb(0xa1, imen >> 8))
-#define INTRGET() ((inb(0xa1) << 8 | inb(0x21)) & 0xffff)
-#endif
-#endif
-
-#endif /* APIC_IO */
-
-#endif /* LOCORE */
-
-
-#ifdef APIC_IO
-/*
- * Note: The APIC uses different values for IRQxxx.
- * Unfortunately many drivers use the 8259 values as indexes
- * into tables, etc. The APIC equivilants are kept as APIC_IRQxxx.
- * The 8259 versions have to be used in SMP for legacy operation
- * of the drivers.
- */
-#endif /* APIC_IO */
-
-/*
- * Interrupt enable bits - in normal order of priority (which we change)
- */
-#define IRQ0 0x0001 /* highest priority - timer */
-#define IRQ1 0x0002
-#define IRQ_SLAVE 0x0004
-#define IRQ8 0x0100
-#define IRQ9 0x0200
-#define IRQ2 IRQ9
-#define IRQ10 0x0400
-#define IRQ11 0x0800
-#define IRQ12 0x1000
-#define IRQ13 0x2000
-#define IRQ14 0x4000
-#define IRQ15 0x8000
-#define IRQ3 0x0008 /* this is highest after rotation */
-#define IRQ4 0x0010
-#define IRQ5 0x0020
-#define IRQ6 0x0040
-#define IRQ7 0x0080 /* lowest - parallel printer */
-
-#ifdef PC98
-#undef IRQ2
-#define IRQ2 0x0004
-#undef IRQ_SLAVE
-#define IRQ_SLAVE 0x0080
-#endif
-
-
-/*
- * Interrupt Control offset into Interrupt descriptor table (IDT)
- */
-#define ICU_OFFSET 32 /* 0-31 are processor exceptions */
-
-#ifdef APIC_IO
-
-/* 32-47: ISA IRQ0-IRQ15, 48-55: IO APIC IRQ16-IRQ23 */
-#define ICU_LEN 24
-
-#else
-
-#define ICU_LEN 16 /* 32-47 are ISA interrupts */
-
-#endif /* APIC_IO */
-
-#endif /* !_I386_ISA_ICU_H_ */