| 1 | /* $NetBSD: i82489var.h,v 1.15 2016/10/16 10:51:31 maxv 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 | #endif |
| 45 | |
| 46 | static __inline uint32_t |
| 47 | i82489_readreg(int reg) |
| 48 | { |
| 49 | return *((volatile uint32_t *)(((volatile uint8_t *)local_apic) |
| 50 | + reg)); |
| 51 | } |
| 52 | |
| 53 | static __inline void |
| 54 | i82489_writereg(int reg, uint32_t val) |
| 55 | { |
| 56 | *((volatile uint32_t *)(((volatile uint8_t *)local_apic) + reg)) = val; |
| 57 | } |
| 58 | |
| 59 | #define lapic_cpu_number() (i82489_readreg(LAPIC_ID) >> LAPIC_ID_SHIFT) |
| 60 | |
| 61 | /* |
| 62 | * "spurious interrupt vector"; vector used by interrupt which was |
| 63 | * aborted because the CPU masked it after it happened but before it |
| 64 | * was delivered.. "Oh, sorry, i caught you at a bad time". |
| 65 | * Low-order 4 bits must be all ones. |
| 66 | */ |
| 67 | extern void Xintrspurious(void); |
| 68 | #define LAPIC_SPURIOUS_VECTOR 0xef |
| 69 | |
| 70 | /* |
| 71 | * Vectors used for inter-processor interrupts. |
| 72 | */ |
| 73 | extern void Xintr_lapic_ipi(void); |
| 74 | extern void Xrecurse_lapic_ipi(void); |
| 75 | extern void Xresume_lapic_ipi(void); |
| 76 | #define LAPIC_IPI_VECTOR 0xe0 |
| 77 | |
| 78 | extern void Xintr_lapic_tlb(void); |
| 79 | #define LAPIC_TLB_VECTOR 0xe1 |
| 80 | |
| 81 | /* |
| 82 | * Vector used for local apic timer interrupts. |
| 83 | */ |
| 84 | |
| 85 | extern void Xintr_lapic_ltimer(void); |
| 86 | extern void Xresume_lapic_ltimer(void); |
| 87 | extern void Xrecurse_lapic_ltimer(void); |
| 88 | #define LAPIC_TIMER_VECTOR 0xc0 |
| 89 | |
| 90 | /* |
| 91 | * 'pin numbers' for local APIC |
| 92 | */ |
| 93 | #define LAPIC_PIN_TIMER 0 |
| 94 | #define LAPIC_PIN_PCINT 2 |
| 95 | #define LAPIC_PIN_LVINT0 3 |
| 96 | #define LAPIC_PIN_LVINT1 4 |
| 97 | #define LAPIC_PIN_LVERR 5 |
| 98 | |
| 99 | extern void Xintr_lapic0(void); |
| 100 | extern void Xintr_lapic2(void); |
| 101 | extern void Xintr_lapic3(void); |
| 102 | extern void Xintr_lapic4(void); |
| 103 | extern void Xintr_lapic5(void); |
| 104 | |
| 105 | |
| 106 | struct cpu_info; |
| 107 | |
| 108 | extern void lapic_boot_init(paddr_t); |
| 109 | extern void lapic_set_lvt(void); |
| 110 | extern void lapic_enable(void); |
| 111 | extern void lapic_calibrate_timer(struct cpu_info *ci); |
| 112 | extern void lapic_initclocks(void); |
| 113 | |
| 114 | #endif |
| 115 | |