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i82489var.h revision 1.11 
      1 /*	$NetBSD: i82489var.h,v 1.11 2008/04/14 05:52:34 cegger 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 uint32_t i82489_readreg(int);
     47 static __inline void i82489_writereg(int, uint32_t);
     48 
     49 #ifdef _KERNEL
     50 extern volatile uint32_t local_apic[];
     51 extern volatile uint32_t lapic_tpr;
     52 #endif
     53 
     54 static __inline uint32_t
     55 i82489_readreg(int reg)
     56 {
     57 	return *((volatile uint32_t *)(((volatile uint8_t *)local_apic)
     58 	    + reg));
     59 }
     60 
     61 static __inline void
     62 i82489_writereg(int reg, uint32_t val)
     63 {
     64 	*((volatile uint32_t *)(((volatile uint8_t *)local_apic) + reg)) = val;
     65 }
     66 
     67 #define lapic_cpu_number() 	(i82489_readreg(LAPIC_ID) >> LAPIC_ID_SHIFT)
     68 
     69 /*
     70  * "spurious interrupt vector"; vector used by interrupt which was
     71  * aborted because the CPU masked it after it happened but before it
     72  * was delivered.. "Oh, sorry, i caught you at a bad time".
     73  * Low-order 4 bits must be all ones.
     74  */
     75 extern void Xintrspurious(void);
     76 #define LAPIC_SPURIOUS_VECTOR		0xef
     77 
     78 /*
     79  * Vectors used for inter-processor interrupts.
     80  */
     81 extern void Xintr_lapic_ipi(void);
     82 extern void Xrecurse_lapic_ipi(void);
     83 extern void Xresume_lapic_ipi(void);
     84 #define LAPIC_IPI_VECTOR			0xe0
     85 
     86 extern void Xintr_lapic_tlb_bcast(void);
     87 #define LAPIC_TLB_BCAST_VECTOR			0xe1
     88 
     89 extern void Xintr_lapic_tlb_mcast(void);
     90 #define LAPIC_TLB_MCAST_VECTOR			0xe2
     91 
     92 /*
     93  * Vector used for local apic timer interrupts.
     94  */
     95 
     96 extern void Xintr_lapic_ltimer(void);
     97 extern void Xresume_lapic_ltimer(void);
     98 extern void Xrecurse_lapic_ltimer(void);
     99 #define LAPIC_TIMER_VECTOR		0xc0
    100 
    101 /*
    102  * 'pin numbers' for local APIC
    103  */
    104 #define LAPIC_PIN_TIMER		0
    105 #define LAPIC_PIN_PCINT		2
    106 #define LAPIC_PIN_LVINT0	3
    107 #define LAPIC_PIN_LVINT1	4
    108 #define LAPIC_PIN_LVERR		5
    109 
    110 extern void Xintr_lapic0(void);
    111 extern void Xintr_lapic2(void);
    112 extern void Xintr_lapic3(void);
    113 extern void Xintr_lapic4(void);
    114 extern void Xintr_lapic5(void);
    115 
    116 
    117 struct cpu_info;
    118 
    119 extern void lapic_boot_init(paddr_t);
    120 extern void lapic_set_lvt(void);
    121 extern void lapic_enable(void);
    122 extern void lapic_suspend(void);
    123 extern void lapic_resume(void);
    124 extern void lapic_calibrate_timer(struct cpu_info *ci);
    125 extern void lapic_initclocks(void);
    126 
    127 #endif
    128