ae4b76c8d3
in interrupt controllers in struct pic, and try to keep as much common code as possible. At the lowest (asm) level, this is done with CPP macros. The main structure is now struct intrsource, describing an established interrupt line, of any kind (soft/hard local apic/legacy apic/IO apic). For quick masking, there may be a maximum of 32 sources per CPU. Sources can be assigned to any CPU in the MP case, though currently they all go to the boot CPU.
100 lines
3.7 KiB
C
100 lines
3.7 KiB
C
/* $NetBSD: i82093var.h,v 1.3 2002/11/22 15:23:46 fvdl 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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 _I386_I82093VAR_H_
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#define _I386_I82093VAR_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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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_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 u_int32_t *sc_reg; /* KVA of ioapic addr */
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volatile u_int32_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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#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 *apic_intr_establish __P((int, int, int, int (*)(void *), void *));
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void apic_intr_disestablish __P((void *));
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void ioapic_print_redir (struct ioapic_softc *, char *, int);
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void ioapic_format_redir (char *, char *, int, u_int32_t, u_int32_t);
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struct ioapic_softc *ioapic_find (int);
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void ioapic_enable __P((void));
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void lapic_vectorset __P((void)); /* XXX */
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extern int ioapic_bsp_id;
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#endif /* !_I386_I82093VAR_H_ */
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