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i82489var.h revision 1.6 
      1 /*	$NetBSD: i82489var.h,v 1.6 2007/08/29 23:38:05 ad 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 _X86_I82489VAR_H_
     40 #define _X86_I82489VAR_H_
     41 
     42 /*
     43  * Software definitions belonging to Local APIC driver.
     44  */
     45 
     46 static __inline u_int32_t i82489_readreg(int);
     47 static __inline void i82489_writereg(int, u_int32_t);
     48 
     49 #ifdef _KERNEL
     50 extern volatile u_int32_t local_apic[];
     51 extern volatile u_int32_t lapic_tpr;
     52 #endif
     53 
     54 static __inline u_int32_t
     55 i82489_readreg(reg)
     56 	int reg;
     57 {
     58 	return *((volatile u_int32_t *)(((volatile u_int8_t *)local_apic)
     59 	    + reg));
     60 }
     61 
     62 static __inline void
     63 i82489_writereg(reg, val)
     64 	int reg;
     65 	u_int32_t val;
     66 {
     67 	*((volatile u_int32_t *)(((volatile u_int8_t *)local_apic) + reg)) = val;
     68 }
     69 
     70 #define lapic_cpu_number() 	(i82489_readreg(LAPIC_ID)>>LAPIC_ID_SHIFT)
     71 
     72 /*
     73  * "spurious interrupt vector"; vector used by interrupt which was
     74  * aborted because the CPU masked it after it happened but before it
     75  * was delivered.. "Oh, sorry, i caught you at a bad time".
     76  * Low-order 4 bits must be all ones.
     77  */
     78 extern void Xintrspurious(void);
     79 #define LAPIC_SPURIOUS_VECTOR		0xef
     80 
     81 /*
     82  * Vectors used for inter-processor interrupts.
     83  */
     84 extern void Xintr_lapic_ipi(void);
     85 extern void Xrecurse_lapic_ipi(void);
     86 extern void Xresume_lapic_ipi(void);
     87 #define LAPIC_IPI_VECTOR			0xe0
     88 
     89 extern void Xintr_lapic_tlb_bcast(void);
     90 #define LAPIC_TLB_BCAST_VECTOR			0xe1
     91 
     92 extern void Xintr_lapic_tlb_mcast(void);
     93 #define LAPIC_TLB_MCAST_VECTOR			0xe2
     94 
     95 /*
     96  * Vector used for local apic timer interrupts.
     97  */
     98 
     99 extern void Xintr_lapic_ltimer(void);
    100 extern void Xresume_lapic_ltimer(void);
    101 extern void Xrecurse_lapic_ltimer(void);
    102 #define LAPIC_TIMER_VECTOR		0xc0
    103 
    104 /*
    105  * 'pin numbers' for local APIC
    106  */
    107 #define LAPIC_PIN_TIMER		0
    108 #define LAPIC_PIN_PCINT		2
    109 #define LAPIC_PIN_LVINT0	3
    110 #define LAPIC_PIN_LVINT1	4
    111 #define LAPIC_PIN_LVERR		5
    112 
    113 extern void Xintr_lapic0(void);
    114 extern void Xintr_lapic2(void);
    115 extern void Xintr_lapic3(void);
    116 extern void Xintr_lapic4(void);
    117 extern void Xintr_lapic5(void);
    118 
    119 
    120 struct cpu_info;
    121 
    122 extern void lapic_boot_init(paddr_t);
    123 extern void lapic_set_lvt(void);
    124 extern void lapic_enable(void);
    125 extern void lapic_calibrate_timer(struct cpu_info *ci);
    126 extern void lapic_initclocks(void);
    127 
    128 #endif
    129