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i82489var.h revision 1.1.2.1 
      1 /*	$NetBSD: i82489var.h,v 1.1.2.1 2000/02/20 16:30:27 sommerfeld 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  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #ifndef _I386_I82489REG_H_
     40 #define _I386_I82489REG_H_
     41 
     42 static __inline__ u_int32_t i82489_readreg __P((int));
     43 static __inline__ void i82489_writereg __P((int, u_int32_t));
     44 
     45 #ifdef _KERNEL
     46 extern volatile u_int32_t local_apic[];
     47 #endif
     48 
     49 static __inline__ u_int32_t
     50 i82489_readreg(reg)
     51 	int reg;
     52 {
     53 	return *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic)
     54 	    + reg));
     55 }
     56 
     57 static __inline__ void
     58 i82489_writereg(reg, val)
     59 	int reg;
     60 	u_int32_t val;
     61 {
     62 	*((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) + reg)) = val;
     63 }
     64 
     65 /*
     66  * "spurious interrupt vector"; vector used by interrupt which was
     67  * aborted because the CPU masked it after it happened but before it
     68  * was delivered.. "Oh, sorry, i caught you at a bad time".
     69  * Low-order 4 bits must be all ones.
     70  */
     71 extern void i386_spurious(void);
     72 extern void Xintrspurious(void);
     73 #define LAPIC_SPURIOUS_VECTOR		0xef
     74 
     75 /*
     76  * Vector used for inter-processor interrupts.
     77  */
     78 extern void Xintripi(void);
     79 #define LAPIC_IPI_VECTOR			0xe0
     80 
     81 /*
     82  * Vector used for local apic timer interrupts.
     83  */
     84 
     85 extern void Xintrltimer(void);
     86 #define LAPIC_TIMER_VECTOR		0xd0
     87 
     88 /*
     89  * Vectors to be used for self-soft-interrupts.
     90  */
     91 
     92 #define LAPIC_SOFTCLOCK_VECTOR		IPL_SOFTCLOCK
     93 #define LAPIC_SOFTNET_VECTOR		IPL_SOFTNET
     94 #define LAPIC_SOFTSER_VECTOR		IPL_SOFTSERIAL
     95 
     96 extern void Xintrsoftclock(void);
     97 extern void Xintrsoftnet(void);
     98 extern void Xintrsoftser(void);
     99 
    100 extern void (*apichandler[]) __P((void));
    101 
    102 struct cpu_info;
    103 
    104 extern void lapic_vector_init __P((void));
    105 extern void lapic_set_lvt __P((void));
    106 extern void lapic_enable __P((void));
    107 extern void lapic_map __P((paddr_t));
    108 extern void lapic_calibrate_timer __P((struct cpu_info *ci));
    109 
    110 #endif
    111 
    112