i82489var.h revision 1.2
1 1.2 fvdl /* $NetBSD: i82489var.h,v 1.2 2002/10/01 12:57:06 fvdl Exp $ */ 2 1.2 fvdl 3 1.2 fvdl /*- 4 1.2 fvdl * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 1.2 fvdl * All rights reserved. 6 1.2 fvdl * 7 1.2 fvdl * This code is derived from software contributed to The NetBSD Foundation 8 1.2 fvdl * by Frank van der Linden. 9 1.2 fvdl * 10 1.2 fvdl * Redistribution and use in source and binary forms, with or without 11 1.2 fvdl * modification, are permitted provided that the following conditions 12 1.2 fvdl * are met: 13 1.2 fvdl * 1. Redistributions of source code must retain the above copyright 14 1.2 fvdl * notice, this list of conditions and the following disclaimer. 15 1.2 fvdl * 2. Redistributions in binary form must reproduce the above copyright 16 1.2 fvdl * notice, this list of conditions and the following disclaimer in the 17 1.2 fvdl * documentation and/or other materials provided with the distribution. 18 1.2 fvdl * 3. All advertising materials mentioning features or use of this software 19 1.2 fvdl * must display the following acknowledgement: 20 1.2 fvdl * This product includes software developed by the NetBSD 21 1.2 fvdl * Foundation, Inc. and its contributors. 22 1.2 fvdl * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2 fvdl * contributors may be used to endorse or promote products derived 24 1.2 fvdl * from this software without specific prior written permission. 25 1.2 fvdl * 26 1.2 fvdl * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2 fvdl * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2 fvdl * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2 fvdl * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2 fvdl * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2 fvdl * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2 fvdl * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2 fvdl * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2 fvdl * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2 fvdl * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2 fvdl * POSSIBILITY OF SUCH DAMAGE. 37 1.2 fvdl */ 38 1.2 fvdl 39 1.2 fvdl #ifndef _I386_I82489REG_H_ 40 1.2 fvdl #define _I386_I82489REG_H_ 41 1.2 fvdl 42 1.2 fvdl /* 43 1.2 fvdl * Software definitions belonging to Local APIC driver. 44 1.2 fvdl */ 45 1.2 fvdl 46 1.2 fvdl static __inline__ u_int32_t i82489_readreg __P((int)); 47 1.2 fvdl static __inline__ void i82489_writereg __P((int, u_int32_t)); 48 1.2 fvdl 49 1.2 fvdl #ifdef _KERNEL 50 1.2 fvdl extern volatile u_int32_t local_apic[]; 51 1.2 fvdl #endif 52 1.2 fvdl 53 1.2 fvdl static __inline__ u_int32_t 54 1.2 fvdl i82489_readreg(reg) 55 1.2 fvdl int reg; 56 1.2 fvdl { 57 1.2 fvdl return *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) 58 1.2 fvdl + reg)); 59 1.2 fvdl } 60 1.2 fvdl 61 1.2 fvdl static __inline__ void 62 1.2 fvdl i82489_writereg(reg, val) 63 1.2 fvdl int reg; 64 1.2 fvdl u_int32_t val; 65 1.2 fvdl { 66 1.2 fvdl *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) + reg)) = val; 67 1.2 fvdl } 68 1.2 fvdl 69 1.2 fvdl #define lapic_cpu_number() (i82489_readreg(LAPIC_ID)>>LAPIC_ID_SHIFT) 70 1.2 fvdl 71 1.2 fvdl /* 72 1.2 fvdl * "spurious interrupt vector"; vector used by interrupt which was 73 1.2 fvdl * aborted because the CPU masked it after it happened but before it 74 1.2 fvdl * was delivered.. "Oh, sorry, i caught you at a bad time". 75 1.2 fvdl * Low-order 4 bits must be all ones. 76 1.2 fvdl */ 77 1.2 fvdl extern void i386_spurious(void); 78 1.2 fvdl extern void Xintrspurious(void); 79 1.2 fvdl #define LAPIC_SPURIOUS_VECTOR 0xef 80 1.2 fvdl 81 1.2 fvdl /* 82 1.2 fvdl * Vector used for inter-processor interrupts. 83 1.2 fvdl */ 84 1.2 fvdl extern void Xintripi(void); 85 1.2 fvdl #define LAPIC_IPI_VECTOR 0xe0 86 1.2 fvdl 87 1.2 fvdl /* 88 1.2 fvdl * Vector used for local apic timer interrupts. 89 1.2 fvdl */ 90 1.2 fvdl 91 1.2 fvdl extern void Xintrltimer(void); 92 1.2 fvdl #define LAPIC_TIMER_VECTOR 0xd0 93 1.2 fvdl 94 1.2 fvdl extern void (*apichandler[]) __P((void)); 95 1.2 fvdl 96 1.2 fvdl struct cpu_info; 97 1.2 fvdl 98 1.2 fvdl extern void lapic_boot_init __P((paddr_t)); 99 1.2 fvdl extern void lapic_set_lvt __P((void)); 100 1.2 fvdl extern void lapic_enable __P((void)); 101 1.2 fvdl extern void lapic_calibrate_timer __P((struct cpu_info *ci)); 102 1.2 fvdl extern void lapic_initclocks __P((void)); 103 1.2 fvdl 104 1.2 fvdl #endif 105 1.2 fvdl 106
Indexes created Mon Sep 29 21:09:56 GMT 2025