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i82093reg.h revision 1.1.2.1 
      1 /*-
      2  * Copyright (c) 2000 The NetBSD Foundation, Inc.
      3  * All rights reserved.
      4  *
      5  * This code is derived from software contributed to The NetBSD Foundation
      6  * by RedBack Networks Inc.
      7  *
      8  * Author: Bill Sommerfeld
      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 /*
     40  * Typically, the first apic lives here.
     41  */
     42 #define IOAPIC_BASE_DEFAULT	0xfec00000
     43 
     44 /*
     45  * Memory-space registers.
     46  */
     47 
     48 /*
     49  * The externally visible registers are all 32 bits wide;
     50  * store the register number of interest in IOAPIC_REG, and store/fetch
     51  * the real value in IOAPIC_DATA.
     52  */
     53 
     54 
     55 
     56 #define	IOAPIC_REG		0x0000
     57 #define IOAPIC_DATA		0x0010
     58 
     59 /*
     60  * Internal I/O APIC registers.
     61  */
     62 
     63 #define IOAPIC_ID		0x00
     64 
     65 #define 	IOAPIC_ID_SHIFT		24
     66 #define		IOAPIC_ID_MASK		0x0f000000
     67 
     68 /* Version, and maximum interrupt pin number. */
     69 
     70 #define IOAPIC_VER		0x01
     71 
     72 #define		IOAPIC_VER_SHIFT		0
     73 #define		IOAPIC_VER_MASK			0x000000ff
     74 
     75 #define		IOAPIC_MAX_SHIFT	       	16
     76 #define		IOAPIC_MAX_MASK	       	0x00ff0000
     77 
     78 /*
     79  * Arbitration ID.  Same format as IOAPIC_ID register.
     80  */
     81 #define IOAPIC_ARB		0x02
     82 
     83 /*
     84  * Redirection table registers.
     85  */
     86 
     87 #define IOAPIC_REDHI(pin)	(0x11 + ((pin)<<1))
     88 #define IOAPIC_REDLO(pin)	(0x10 + ((pin)<<1))
     89 
     90 #define IOAPIC_REDHI_DEST_SHIFT		24	   /* destination. */
     91 #define IOAPIC_REDHI_DEST_MASK		0xff000000
     92 
     93 #define IOAPIC_REDLO_MASK		0x00010000 /* 0=enabled; 1=masked */
     94 
     95 #define IOAPIC_REDLO_LEVEL		0x00008000 /* 0=edge, 1=level */
     96 #define IOAPIC_REDLO_RIRR		0x00004000 /* remote IRR; read only */
     97 #define IOAPIC_REDLO_ACTLO		0x00002000 /* 0=act. hi; 1=act. lo */
     98 #define IOAPIC_REDLO_DELSTS		0x00001000 /* 0=idle; 1=send pending */
     99 #define IOAPIC_REDLO_DSTMOD		0x00000800 /* 0=physical; 1=logical */
    100 
    101 #define IOAPIC_REDLO_DEL_MASK		0x00000700 /* del. mode mask */
    102 #define IOAPIC_REDLO_DEL_SHIFT		8
    103 
    104 #define IOAPIC_REDLO_DEL_FIXED		0
    105 #define IOAPIC_REDLO_DEL_LOPRI		1
    106 #define IOAPIC_REDLO_DEL_SMI		2
    107 #define IOAPIC_REDLO_DEL_NMI		4
    108 #define IOAPIC_REDLO_DEL_INIT		5
    109 #define IOAPIC_REDLO_DEL_EXTINT		7
    110 
    111 #define IOAPIC_REDLO_VECTOR_MASK	0x000000ff /* delivery vector */
    112 
    113 #define IMCR_ADDR		0x22
    114 #define IMCR_DATA		0x23
    115 
    116 #define IMCR_REGISTER		0x70
    117 #define		IMCR_PIC	0x00
    118 #define 	IMCR_APIC	0x01
    119