1 /* $NetBSD: i82489var.h,v 1.7 2007/10/17 19:58:14 garbled 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _X86_I82489VAR_H_ 40 #define _X86_I82489VAR_H_ 41 42 /* 43 * Software definitions belonging to Local APIC driver. 44 */ 45 46 static __inline u_int32_t i82489_readreg(int); 47 static __inline void i82489_writereg(int, u_int32_t); 48 49 #ifdef _KERNEL 50 extern volatile u_int32_t local_apic[]; 51 extern volatile u_int32_t lapic_tpr; 52 #endif 53 54 static __inline u_int32_t 55 i82489_readreg(reg) 56 int reg; 57 { 58 return *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) 59 + reg)); 60 } 61 62 static __inline void 63 i82489_writereg(reg, val) 64 int reg; 65 u_int32_t val; 66 { 67 *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) + reg)) = val; 68 } 69 70 #define lapic_cpu_number() (i82489_readreg(LAPIC_ID)>>LAPIC_ID_SHIFT) 71 72 /* 73 * "spurious interrupt vector"; vector used by interrupt which was 74 * aborted because the CPU masked it after it happened but before it 75 * was delivered.. "Oh, sorry, i caught you at a bad time". 76 * Low-order 4 bits must be all ones. 77 */ 78 extern void Xintrspurious(void); 79 #define LAPIC_SPURIOUS_VECTOR 0xef 80 81 /* 82 * Vectors used for inter-processor interrupts. 83 */ 84 extern void Xintr_lapic_ipi(void); 85 extern void Xrecurse_lapic_ipi(void); 86 extern void Xresume_lapic_ipi(void); 87 #define LAPIC_IPI_VECTOR 0xe0 88 89 extern void Xintr_lapic_tlb_bcast(void); 90 #define LAPIC_TLB_BCAST_VECTOR 0xe1 91 92 extern void Xintr_lapic_tlb_mcast(void); 93 #define LAPIC_TLB_MCAST_VECTOR 0xe2 94 95 /* 96 * Vector used for local apic timer interrupts. 97 */ 98 99 extern void Xintr_lapic_ltimer(void); 100 extern void Xresume_lapic_ltimer(void); 101 extern void Xrecurse_lapic_ltimer(void); 102 #define LAPIC_TIMER_VECTOR 0xc0 103 104 /* 105 * 'pin numbers' for local APIC 106 */ 107 #define LAPIC_PIN_TIMER 0 108 #define LAPIC_PIN_PCINT 2 109 #define LAPIC_PIN_LVINT0 3 110 #define LAPIC_PIN_LVINT1 4 111 #define LAPIC_PIN_LVERR 5 112 113 extern void Xintr_lapic0(void); 114 extern void Xintr_lapic2(void); 115 extern void Xintr_lapic3(void); 116 extern void Xintr_lapic4(void); 117 extern void Xintr_lapic5(void); 118 119 120 struct cpu_info; 121 122 extern void lapic_boot_init(paddr_t); 123 extern void lapic_set_lvt(void); 124 extern void lapic_enable(void); 125 extern void lapic_calibrate_timer(struct cpu_info *ci); 126 extern void lapic_initclocks(void); 127 128 #endif 129