1 /* $NetBSD: i82489var.h,v 1.12 2008/04/28 20:23:40 martin Exp $ */ 2 3 /*- 4 * Copyright (c) 1998 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _X86_I82489VAR_H_ 33 #define _X86_I82489VAR_H_ 34 35 /* 36 * Software definitions belonging to Local APIC driver. 37 */ 38 39 static __inline uint32_t i82489_readreg(int); 40 static __inline void i82489_writereg(int, uint32_t); 41 42 #ifdef _KERNEL 43 extern volatile uint32_t local_apic[]; 44 extern volatile uint32_t lapic_tpr; 45 #endif 46 47 static __inline uint32_t 48 i82489_readreg(int reg) 49 { 50 return *((volatile uint32_t *)(((volatile uint8_t *)local_apic) 51 + reg)); 52 } 53 54 static __inline void 55 i82489_writereg(int reg, uint32_t val) 56 { 57 *((volatile uint32_t *)(((volatile uint8_t *)local_apic) + reg)) = val; 58 } 59 60 #define lapic_cpu_number() (i82489_readreg(LAPIC_ID) >> LAPIC_ID_SHIFT) 61 62 /* 63 * "spurious interrupt vector"; vector used by interrupt which was 64 * aborted because the CPU masked it after it happened but before it 65 * was delivered.. "Oh, sorry, i caught you at a bad time". 66 * Low-order 4 bits must be all ones. 67 */ 68 extern void Xintrspurious(void); 69 #define LAPIC_SPURIOUS_VECTOR 0xef 70 71 /* 72 * Vectors used for inter-processor interrupts. 73 */ 74 extern void Xintr_lapic_ipi(void); 75 extern void Xrecurse_lapic_ipi(void); 76 extern void Xresume_lapic_ipi(void); 77 #define LAPIC_IPI_VECTOR 0xe0 78 79 extern void Xintr_lapic_tlb_bcast(void); 80 #define LAPIC_TLB_BCAST_VECTOR 0xe1 81 82 extern void Xintr_lapic_tlb_mcast(void); 83 #define LAPIC_TLB_MCAST_VECTOR 0xe2 84 85 /* 86 * Vector used for local apic timer interrupts. 87 */ 88 89 extern void Xintr_lapic_ltimer(void); 90 extern void Xresume_lapic_ltimer(void); 91 extern void Xrecurse_lapic_ltimer(void); 92 #define LAPIC_TIMER_VECTOR 0xc0 93 94 /* 95 * 'pin numbers' for local APIC 96 */ 97 #define LAPIC_PIN_TIMER 0 98 #define LAPIC_PIN_PCINT 2 99 #define LAPIC_PIN_LVINT0 3 100 #define LAPIC_PIN_LVINT1 4 101 #define LAPIC_PIN_LVERR 5 102 103 extern void Xintr_lapic0(void); 104 extern void Xintr_lapic2(void); 105 extern void Xintr_lapic3(void); 106 extern void Xintr_lapic4(void); 107 extern void Xintr_lapic5(void); 108 109 110 struct cpu_info; 111 112 extern void lapic_boot_init(paddr_t); 113 extern void lapic_set_lvt(void); 114 extern void lapic_enable(void); 115 extern void lapic_suspend(void); 116 extern void lapic_resume(void); 117 extern void lapic_calibrate_timer(struct cpu_info *ci); 118 extern void lapic_initclocks(void); 119 120 #endif 121