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/* $OpenBSD: i82093var.h,v 1.3 2004/06/23 17:14:31 niklas Exp $ */
/* $NetBSD: i82093var.h,v 1.1 2003/02/26 21:26:10 fvdl Exp $ */
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by RedBack Networks Inc.
*
* Author: Bill Sommerfeld
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _I386_I82093VAR_H_
#define _I386_I82093VAR_H_
#include <machine/apicvar.h>
struct ioapic_pin
{
struct intrhand *ip_handler;
struct ioapic_pin *ip_next; /* next pin on this vector */
struct mp_intr_map *ip_map;
int ip_vector; /* IDT vector */
int ip_type;
int ip_minlevel;
int ip_maxlevel;
};
struct ioapic_softc {
struct device sc_dev; /* generic device glue */
struct ioapic_softc *sc_next;
int sc_apicid;
int sc_apic_vers;
int sc_apic_sz; /* apic size*/
int sc_flags;
paddr_t sc_pa; /* PA of ioapic */
volatile u_int32_t *sc_reg; /* KVA of ioapic addr */
volatile u_int32_t *sc_data; /* KVA of ioapic data */
struct ioapic_pin *sc_pins; /* sc_apic_sz entries */
};
/*
* MP: intr_handle_t is bitfielded.
* ih&0xff -> line number.
* ih&0x10000000 -> if 0, old-style isa irq; if 1, routed via ioapic.
* (ih&0xff0000)>>16 -> ioapic id.
* (ih&0x00ff00)>>8 -> ioapic line.
*/
#define APIC_INT_VIA_APIC 0x10000000
#define APIC_INT_APIC_MASK 0x00ff0000
#define APIC_INT_APIC_SHIFT 16
#define APIC_INT_PIN_MASK 0x0000ff00
#define APIC_INT_PIN_SHIFT 8
#define APIC_IRQ_APIC(x) ((x & APIC_INT_APIC_MASK) >> APIC_INT_APIC_SHIFT)
#define APIC_IRQ_PIN(x) ((x & APIC_INT_PIN_MASK) >> APIC_INT_PIN_SHIFT)
/* I/O APIC ID remapping helper macros. */
#define IOAPIC_REMAP_MASK (IOAPIC_ID_MASK >> IOAPIC_ID_SHIFT)
#define IOAPIC_REMAP_FLAG ((IOAPIC_REMAP_MASK + 1) << 1)
#define IOAPIC_REMAP(old_id, new_id) \
(ioapic_id_remap[(old_id)] = IOAPIC_REMAP_FLAG | (new_id))
#define IOAPIC_REMAPPED(id) (ioapic_id_remap[(id)] & IOAPIC_REMAP_FLAG)
#define IOAPIC_REMAPPED_ID(id) \
(IOAPIC_REMAPPED(id) ? ioapic_id_remap[(id)] & IOAPIC_REMAP_MASK : (id))
void *apic_intr_establish(int, int, int, int (*)(void *), void *, char *);
void apic_intr_disestablish(void *);
void ioapic_print_redir(struct ioapic_softc *, char *, int);
void ioapic_format_redir(char *, char *, int, u_int32_t, u_int32_t);
struct ioapic_softc *ioapic_find(int);
struct ioapic_softc *ioapic_find_bybase(int);
void ioapic_enable(void);
void lapic_vectorset(void); /* XXX */
extern int ioapic_bsp_id;
extern int nioapics;
extern struct ioapic_softc *ioapics;
extern u_int16_t ioapic_id_map;
extern u_int8_t ioapic_id_remap[];
#endif /* !_I386_I82093VAR_H_ */
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