/* $OpenBSD: i82489var.h,v 1.6 2007/05/26 22:09:17 weingart Exp $ */ /* $NetBSD: i82489var.h,v 1.1.2.2 2000/02/21 18:46:14 sommerfeld Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Frank van der Linden. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #ifndef _I386_I82489VAR_H_ #define _I386_I82489VAR_H_ static __inline__ u_int32_t i82489_readreg(int); static __inline__ void i82489_writereg(int, u_int32_t); #ifdef _KERNEL extern volatile u_int32_t local_apic[]; #endif static __inline__ u_int32_t i82489_readreg(reg) int reg; { return *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) + reg)); } static __inline__ void i82489_writereg(reg, val) int reg; u_int32_t val; { *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) + reg)) = val; /* * intel xeon errata p53: * write to a lapic register sometimes may appear to have not occured * workaround: * follow write with a read [from id register] */ val = *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) + LAPIC_ID)); } /* * "spurious interrupt vector"; vector used by interrupt which was * aborted because the CPU masked it after it happened but before it * was delivered.. "Oh, sorry, i caught you at a bad time". * Low-order 4 bits must be all ones. */ extern void i386_spurious(void); extern void Xintrspurious(void); #define LAPIC_SPURIOUS_VECTOR 0xef /* * Vector used for inter-processor interrupts. */ extern void Xintripi(void); #define LAPIC_IPI_VECTOR IPL_IPI /* * Vector used for local apic timer interrupts. */ extern void Xintrltimer(void); #define LAPIC_TIMER_VECTOR IPL_CLOCK /* * Vectors to be used for self-soft-interrupts. */ #define LAPIC_SOFTCLOCK_VECTOR IPL_SOFTCLOCK #define LAPIC_SOFTNET_VECTOR IPL_SOFTNET #define LAPIC_SOFTTTY_VECTOR IPL_SOFTTTY #define LAPIC_SOFTAST_VECTOR IPL_SOFTAST /* * Special IPI vectors. We can use IDT 0xf0 - 0xff for this. */ #define LAPIC_IPI_OFFSET 0xf0 #define LAPIC_IPI_AST (LAPIC_IPI_OFFSET + 0) #define LAPIC_IPI_INVLTLB (LAPIC_IPI_OFFSET + 1) #define LAPIC_IPI_INVLPG (LAPIC_IPI_OFFSET + 2) #define LAPIC_IPI_INVLRANGE (LAPIC_IPI_OFFSET + 3) extern void Xintripi_ast(void); extern void Xintripi_invltlb(void); extern void Xintripi_invlpg(void); extern void Xintripi_invlrange(void); extern void Xintrsoftclock(void); extern void Xintrsoftnet(void); extern void Xintrsofttty(void); extern void Xintrsoftast(void); extern void (*apichandler[])(void); struct cpu_info; extern void lapic_boot_init(paddr_t); extern void lapic_initclocks(void); extern void lapic_set_lvt(void); extern void lapic_set_softvectors(void); extern void lapic_enable(void); extern void lapic_calibrate_timer(struct cpu_info *); #define lapic_cpu_number() (i82489_readreg(LAPIC_ID)>>LAPIC_ID_SHIFT) #endif