1 /* 2 * Copyright (c) 1991 The Regents of the University of California. 3 * Copyright (c) 1996, by Steve Passe. All rights reserved. 4 * Copyright (c) 2005,2008 The DragonFly Project. All rights reserved. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The DragonFly Project 8 * by Matthew Dillon <dillon@backplane.com> 9 * 10 * This code is derived from software contributed to Berkeley by 11 * William Jolitz. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in 21 * the documentation and/or other materials provided with the 22 * distribution. 23 * 3. Neither the name of The DragonFly Project nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific, prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 31 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 32 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 35 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 37 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 */ 40 41 #ifndef _ARCH_APIC_IOAPIC_ABI_H_ 42 #define _ARCH_APIC_IOAPIC_ABI_H_ 43 44 #ifndef _SYS_BUS_H_ 45 #include <sys/bus.h> 46 #endif 47 48 /* 49 * NOTE: 50 * - Keep size of ioapic_irqinfo power of 2 51 * - Update IOAPIC_IRQI_SZSHIFT after changing ioapic_irqinfo size 52 */ 53 struct ioapic_irqinfo { 54 uint32_t io_flags; /* IOAPIC_IRQI_FLAG_ */ 55 int io_idx; 56 volatile void *io_addr; 57 }; 58 #define IOAPIC_IRQI_SZSHIFT 4 59 60 #define IOAPIC_IRQI_FLAG_LEVEL 0x1 /* default to edge trigger */ 61 #define IOAPIC_IRQI_FLAG_MASKED 0x2 62 63 extern struct ioapic_irqinfo ioapic_irqs[]; 64 65 extern struct machintr_abi MachIntrABI_IOAPIC; 66 67 int ioapic_abi_extint_irqmap(int); 68 void ioapic_abi_set_irqmap(int, int, enum intr_trigger, enum intr_polarity); 69 void ioapic_abi_fixup_irqmap(void); 70 71 int ioapic_abi_find_gsi(int, enum intr_trigger, enum intr_polarity); 72 int ioapic_abi_find_irq(int, enum intr_trigger, enum intr_polarity); 73 74 #endif /* !_ARCH_APIC_IOAPIC_ABI_H_ */ 75