116 lines
3.7 KiB
C
116 lines
3.7 KiB
C
/* $OpenBSD: i82489var.h,v 1.19 2024/06/09 03:12:59 jsg Exp $ */
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/* $NetBSD: i82489var.h,v 1.1 2003/02/26 21:26:10 fvdl Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Frank van der Linden.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACHINE_I82489VAR_H_
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#define _MACHINE_I82489VAR_H_
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/*
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* Software definitions belonging to Local APIC driver.
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*/
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#ifdef _KERNEL
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extern volatile u_int32_t local_apic[];
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extern volatile u_int32_t lapic_tpr;
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#endif
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extern u_int32_t (*lapic_readreg)(int);
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extern void (*lapic_writereg)(int, u_int32_t);
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u_int32_t lapic_cpu_number(void);
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/*
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* "spurious interrupt vector"; vector used by interrupt which was
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* aborted because the CPU masked it after it happened but before it
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* was delivered.. "Oh, sorry, i caught you at a bad time".
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* Low-order 4 bits must be all ones.
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*/
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extern void Xintrspurious(void);
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#define LAPIC_SPURIOUS_VECTOR 0xef
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/*
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* Vector used for inter-processor interrupts.
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*/
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extern void Xintr_lapic_ipi(void);
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extern void Xrecurse_lapic_ipi(void);
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extern void Xresume_lapic_ipi(void);
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#define LAPIC_IPI_VECTOR 0xe0
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/*
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* We take 0xf0-0xfe for fast IPI handlers.
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*/
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#define LAPIC_IPI_OFFSET 0xf0
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#define LAPIC_IPI_INVLTLB (LAPIC_IPI_OFFSET + 0)
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#define LAPIC_IPI_INVLPG (LAPIC_IPI_OFFSET + 1)
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#define LAPIC_IPI_INVLRANGE (LAPIC_IPI_OFFSET + 2)
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extern void Xipi_invltlb(void);
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extern void Xipi_invltlb_pcid(void);
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extern void Xipi_invlpg(void);
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extern void Xipi_invlpg_pcid(void);
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extern void Xipi_invlrange(void);
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extern void Xipi_invlrange_pcid(void);
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/*
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* Vector used for local apic timer interrupts.
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*/
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extern void Xintr_lapic_ltimer(void);
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extern void Xresume_lapic_ltimer(void);
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extern void Xrecurse_lapic_ltimer(void);
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#define LAPIC_TIMER_VECTOR 0xc0
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/*
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* Vector used for Xen HVM Event Channel Interrupts.
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*/
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extern void Xintr_xen_upcall(void);
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extern void Xresume_xen_upcall(void);
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extern void Xrecurse_xen_upcall(void);
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#define LAPIC_XEN_VECTOR 0x70
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/*
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* Vector used for Hyper-V Interrupts.
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*/
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extern void Xintr_hyperv_upcall(void);
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extern void Xresume_hyperv_upcall(void);
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extern void Xrecurse_hyperv_upcall(void);
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#define LAPIC_HYPERV_VECTOR 0x71
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struct cpu_info;
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extern void lapic_boot_init(paddr_t);
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extern void lapic_set_lvt(void);
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extern void lapic_enable(void);
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extern void lapic_disable(void);
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extern void lapic_calibrate_timer(struct cpu_info *ci);
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extern void lapic_startclock(void);
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extern void lapic_initclocks(void);
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#endif
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