97 lines
3.3 KiB
C
97 lines
3.3 KiB
C
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/* $NetBSD: i82093var.h,v 1.12 2012/06/15 13:55:22 yamt Exp $ */
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/*-
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* Copyright (c) 2000 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by RedBack Networks Inc.
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*
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* Author: Bill Sommerfeld
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _X86_I82093VAR_H_
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#define _X86_I82093VAR_H_
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#include <sys/device.h>
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#include <machine/apicvar.h>
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struct ioapic_pin
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{
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struct ioapic_pin *ip_next; /* next pin on this vector */
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struct mp_intr_map *ip_map;
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int ip_vector; /* IDT vector */
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int ip_type;
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struct cpu_info *ip_cpu; /* target CPU */
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};
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struct ioapic_softc {
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device_t sc_dev;
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struct pic sc_pic;
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struct ioapic_softc *sc_next;
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int sc_apicid;
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int sc_apic_vers;
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int sc_apic_vecbase; /* global int base if ACPI */
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int sc_apic_sz; /* apic size*/
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int sc_flags;
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paddr_t sc_pa; /* PA of ioapic */
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volatile uint32_t *sc_reg; /* KVA of ioapic addr */
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volatile uint32_t *sc_data; /* KVA of ioapic data */
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struct ioapic_pin *sc_pins; /* sc_apic_sz entries */
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};
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/*
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* MP: intr_handle_t is bitfielded.
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* ih&0xff -> legacy irq number.
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* ih&0x10000000 -> if 0, old-style isa irq; if 1, routed via ioapic.
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* (ih&0xff0000)>>16 -> ioapic id.
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* (ih&0x00ff00)>>8 -> ioapic pin.
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*
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* 0x80000000 is used by pci_intr_machdep.c for MPSAFE_MASK
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*/
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#define APIC_INT_VIA_APIC 0x10000000
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#define APIC_INT_APIC_MASK 0x00ff0000
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#define APIC_INT_APIC_SHIFT 16
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#define APIC_INT_PIN_MASK 0x0000ff00
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#define APIC_INT_PIN_SHIFT 8
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#define APIC_IRQ_APIC(x) ((x & APIC_INT_APIC_MASK) >> APIC_INT_APIC_SHIFT)
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#define APIC_IRQ_PIN(x) ((x & APIC_INT_PIN_MASK) >> APIC_INT_PIN_SHIFT)
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#define APIC_IRQ_ISLEGACY(x) (!((x) & APIC_INT_VIA_APIC))
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#define APIC_IRQ_LEGACY_IRQ(x) ((x) & 0xff)
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void ioapic_print_redir(struct ioapic_softc *, const char *, int);
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void ioapic_format_redir(char *, const char *, int, uint32_t, uint32_t);
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struct ioapic_softc *ioapic_find(int);
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struct ioapic_softc *ioapic_find_bybase(int);
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void ioapic_enable(void);
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void ioapic_reenable(void);
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extern int nioapics;
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extern struct ioapic_softc *ioapics;
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#endif /* !_X86_I82093VAR_H_ */
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