1 /* $OpenBSD: i82489var.h,v 1.17 2016/06/22 01:12:38 mikeb Exp $ */ 2 /* $NetBSD: i82489var.h,v 1.1 2003/02/26 21:26:10 fvdl Exp $ */ 3 4 /*- 5 * Copyright (c) 1998 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Frank van der Linden. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef _MACHINE_I82489VAR_H_ 34 #define _MACHINE_I82489VAR_H_ 35 36 /* 37 * Software definitions belonging to Local APIC driver. 38 */ 39 40 #ifdef _KERNEL 41 extern volatile u_int32_t local_apic[]; 42 extern volatile u_int32_t lapic_tpr; 43 #endif 44 45 extern u_int32_t (*lapic_readreg)(int); 46 extern void (*lapic_writereg)(int, u_int32_t); 47 u_int32_t lapic_cpu_number(void); 48 49 /* 50 * "spurious interrupt vector"; vector used by interrupt which was 51 * aborted because the CPU masked it after it happened but before it 52 * was delivered.. "Oh, sorry, i caught you at a bad time". 53 * Low-order 4 bits must be all ones. 54 */ 55 extern void Xintrspurious(void); 56 #define LAPIC_SPURIOUS_VECTOR 0xef 57 58 /* 59 * Vector used for inter-processor interrupts. 60 */ 61 extern void Xintr_lapic_ipi(void); 62 extern void Xrecurse_lapic_ipi(void); 63 extern void Xresume_lapic_ipi(void); 64 #define LAPIC_IPI_VECTOR 0xe0 65 66 /* 67 * We take 0xf0-0xfe for fast IPI handlers. 68 */ 69 #define LAPIC_IPI_OFFSET 0xf0 70 #define LAPIC_IPI_INVLTLB (LAPIC_IPI_OFFSET + 0) 71 #define LAPIC_IPI_INVLPG (LAPIC_IPI_OFFSET + 1) 72 #define LAPIC_IPI_INVLRANGE (LAPIC_IPI_OFFSET + 2) 73 74 extern void Xipi_invltlb(void); 75 extern void Xipi_invlpg(void); 76 extern void Xipi_invlrange(void); 77 78 /* 79 * Vector used for local apic timer interrupts. 80 */ 81 82 extern void Xintr_lapic_ltimer(void); 83 extern void Xresume_lapic_ltimer(void); 84 extern void Xrecurse_lapic_ltimer(void); 85 #define LAPIC_TIMER_VECTOR 0xc0 86 87 /* 88 * 'pin numbers' for local APIC 89 */ 90 #define LAPIC_PIN_TIMER 0 91 #define LAPIC_PIN_PCINT 2 92 #define LAPIC_PIN_LVINT0 3 93 #define LAPIC_PIN_LVINT1 4 94 #define LAPIC_PIN_LVERR 5 95 96 extern void Xintr_lapic0(void); 97 extern void Xintr_lapic2(void); 98 extern void Xintr_lapic3(void); 99 extern void Xintr_lapic4(void); 100 extern void Xintr_lapic5(void); 101 102 /* 103 * Vector used for Xen HVM Event Channel Interrupts. 104 */ 105 extern void Xintr_xen_upcall(void); 106 extern void Xresume_xen_upcall(void); 107 extern void Xrecurse_xen_upcall(void); 108 #define LAPIC_XEN_VECTOR 0x70 109 110 /* 111 * Vector used for Hyper-V Interrupts. 112 */ 113 extern void Xintr_hyperv_upcall(void); 114 extern void Xresume_hyperv_upcall(void); 115 extern void Xrecurse_hyperv_upcall(void); 116 #define LAPIC_HYPERV_VECTOR 0x71 117 118 struct cpu_info; 119 120 extern void lapic_boot_init(paddr_t); 121 extern void lapic_set_lvt(void); 122 extern void lapic_enable(void); 123 extern void lapic_disable(void); 124 extern void lapic_calibrate_timer(struct cpu_info *ci); 125 extern void lapic_startclock(void); 126 extern void lapic_initclocks(void); 127 128 #endif 129