1 /* $OpenBSD: i82489var.h,v 1.21 2024/11/07 17:24:42 bluhm 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 #include "vmm.h" 37 38 /* 39 * Software definitions belonging to Local APIC driver. 40 */ 41 42 #ifdef _KERNEL 43 extern volatile u_int32_t local_apic[]; 44 extern volatile u_int32_t lapic_tpr; 45 #endif 46 47 extern u_int32_t (*lapic_readreg)(int); 48 extern void (*lapic_writereg)(int, u_int32_t); 49 u_int32_t lapic_cpu_number(void); 50 51 /* 52 * "spurious interrupt vector"; vector used by interrupt which was 53 * aborted because the CPU masked it after it happened but before it 54 * was delivered.. "Oh, sorry, i caught you at a bad time". 55 * Low-order 4 bits must be all ones. 56 */ 57 extern void Xintrspurious(void); 58 #define LAPIC_SPURIOUS_VECTOR 0xef 59 60 /* 61 * Vector used for inter-processor interrupts. 62 */ 63 extern void Xintr_lapic_ipi(void); 64 extern void Xrecurse_lapic_ipi(void); 65 extern void Xresume_lapic_ipi(void); 66 #define LAPIC_IPI_VECTOR 0xe0 67 68 /* 69 * We take 0xf0-0xfe for fast IPI handlers. 70 */ 71 #define LAPIC_IPI_OFFSET 0xf0 72 #define LAPIC_IPI_INVLTLB (LAPIC_IPI_OFFSET + 0) 73 #define LAPIC_IPI_INVLPG (LAPIC_IPI_OFFSET + 1) 74 #define LAPIC_IPI_INVLRANGE (LAPIC_IPI_OFFSET + 2) 75 #define LAPIC_IPI_WBINVD (LAPIC_IPI_OFFSET + 3) 76 #define LAPIC_IPI_INVEPT (LAPIC_IPI_OFFSET + 4) 77 78 extern void Xipi_invltlb(void); 79 extern void Xipi_invltlb_pcid(void); 80 extern void Xipi_invlpg(void); 81 extern void Xipi_invlpg_pcid(void); 82 extern void Xipi_invlrange(void); 83 extern void Xipi_invlrange_pcid(void); 84 extern void Xipi_wbinvd(void); 85 #if NVMM > 0 86 extern void Xipi_invept(void); 87 #endif /* NVMM > 0 */ 88 89 /* 90 * Vector used for local apic timer interrupts. 91 */ 92 93 extern void Xintr_lapic_ltimer(void); 94 extern void Xresume_lapic_ltimer(void); 95 extern void Xrecurse_lapic_ltimer(void); 96 #define LAPIC_TIMER_VECTOR 0xc0 97 98 /* 99 * Vector used for Xen HVM Event Channel Interrupts. 100 */ 101 extern void Xintr_xen_upcall(void); 102 extern void Xresume_xen_upcall(void); 103 extern void Xrecurse_xen_upcall(void); 104 #define LAPIC_XEN_VECTOR 0x70 105 106 /* 107 * Vector used for Hyper-V Interrupts. 108 */ 109 extern void Xintr_hyperv_upcall(void); 110 extern void Xresume_hyperv_upcall(void); 111 extern void Xrecurse_hyperv_upcall(void); 112 #define LAPIC_HYPERV_VECTOR 0x71 113 114 struct cpu_info; 115 116 extern void lapic_boot_init(paddr_t); 117 extern void lapic_set_lvt(void); 118 extern void lapic_enable(void); 119 extern void lapic_disable(void); 120 extern void lapic_calibrate_timer(struct cpu_info *ci); 121 extern void lapic_startclock(void); 122 extern void lapic_initclocks(void); 123 124 #endif 125