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/* $NetBSD: i82489var.h,v 1.14 2011/06/12 03:35:50 rmind 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.
*
* 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 _X86_I82489VAR_H_
#define _X86_I82489VAR_H_
/*
* Software definitions belonging to Local APIC driver.
*/
static __inline uint32_t i82489_readreg(int);
static __inline void i82489_writereg(int, uint32_t);
#ifdef _KERNEL
extern volatile uint32_t local_apic[];
extern volatile uint32_t lapic_tpr;
#endif
static __inline uint32_t
i82489_readreg(int reg)
{
return *((volatile uint32_t *)(((volatile uint8_t *)local_apic)
+ reg));
}
static __inline void
i82489_writereg(int reg, uint32_t val)
{
*((volatile uint32_t *)(((volatile uint8_t *)local_apic) + reg)) = val;
}
#define lapic_cpu_number() (i82489_readreg(LAPIC_ID) >> LAPIC_ID_SHIFT)
/*
* "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 Xintrspurious(void);
#define LAPIC_SPURIOUS_VECTOR 0xef
/*
* Vectors used for inter-processor interrupts.
*/
extern void Xintr_lapic_ipi(void);
extern void Xrecurse_lapic_ipi(void);
extern void Xresume_lapic_ipi(void);
#define LAPIC_IPI_VECTOR 0xe0
extern void Xintr_lapic_tlb(void);
#define LAPIC_TLB_VECTOR 0xe1
/*
* Vector used for local apic timer interrupts.
*/
extern void Xintr_lapic_ltimer(void);
extern void Xresume_lapic_ltimer(void);
extern void Xrecurse_lapic_ltimer(void);
#define LAPIC_TIMER_VECTOR 0xc0
/*
* 'pin numbers' for local APIC
*/
#define LAPIC_PIN_TIMER 0
#define LAPIC_PIN_PCINT 2
#define LAPIC_PIN_LVINT0 3
#define LAPIC_PIN_LVINT1 4
#define LAPIC_PIN_LVERR 5
extern void Xintr_lapic0(void);
extern void Xintr_lapic2(void);
extern void Xintr_lapic3(void);
extern void Xintr_lapic4(void);
extern void Xintr_lapic5(void);
struct cpu_info;
extern void lapic_boot_init(paddr_t);
extern void lapic_set_lvt(void);
extern void lapic_enable(void);
extern void lapic_calibrate_timer(struct cpu_info *ci);
extern void lapic_initclocks(void);
#endif
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