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Annotation of Gnu-Mach/i386/imps/apic.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Copyright (c) 1994 The University of Utah and
        !             3:  * the Computer Systems Laboratory at the University of Utah (CSL).
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * Permission to use, copy, modify and distribute this software is hereby
        !             7:  * granted provided that (1) source code retains these copyright, permission,
        !             8:  * and disclaimer notices, and (2) redistributions including binaries
        !             9:  * reproduce the notices in supporting documentation, and (3) all advertising
        !            10:  * materials mentioning features or use of this software display the following
        !            11:  * acknowledgement: ``This product includes software developed by the
        !            12:  * Computer Systems Laboratory at the University of Utah.''
        !            13:  *
        !            14:  * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
        !            15:  * IS" CONDITION.  THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
        !            16:  * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            17:  *
        !            18:  * CSL requests users of this software to return to [email protected] any
        !            19:  * improvements that they make and grant CSL redistribution rights.
        !            20:  *
        !            21:  *      Author: Bryan Ford, University of Utah CSL
        !            22:  */
        !            23: #ifndef _IMPS_APIC_
        !            24: #define _IMPS_APIC_
        !            25: 
        !            26: typedef struct ApicReg
        !            27: {
        !            28:        unsigned r;     /* the actual register */
        !            29:        unsigned p[3];  /* pad to the next 128-bit boundary */
        !            30: } ApicReg;
        !            31: 
        !            32: typedef struct ApicIoUnit
        !            33: {
        !            34:        ApicReg select;
        !            35:        ApicReg window;
        !            36: } ApicIoUnit;
        !            37: #define APIC_IO_UNIT_ID                        0x00
        !            38: #define APIC_IO_VERSION                        0x01
        !            39: #define APIC_IO_REDIR_LOW(int_pin)     (0x10+(int_pin)*2)
        !            40: #define APIC_IO_REDIR_HIGH(int_pin)    (0x11+(int_pin)*2)
        !            41: 
        !            42: typedef struct ApicLocalUnit
        !            43: {
        !            44:        ApicReg reserved0;
        !            45:        ApicReg reserved1;
        !            46:        ApicReg unit_id;
        !            47:        ApicReg version;
        !            48:        ApicReg reserved4;
        !            49:        ApicReg reserved5;
        !            50:        ApicReg reserved6;
        !            51:        ApicReg reserved7;
        !            52:        ApicReg task_pri;
        !            53:        ApicReg reservedb;
        !            54:        ApicReg reservedc;
        !            55:        ApicReg eoi;
        !            56:        ApicReg remote;
        !            57:        ApicReg logical_dest;
        !            58:        ApicReg dest_format;
        !            59:        ApicReg spurious_vector;
        !            60:        ApicReg isr[8];
        !            61:        ApicReg tmr[8];
        !            62:        ApicReg irr[8];
        !            63:        ApicReg reserved28[8];
        !            64:        ApicReg int_command[2];
        !            65:        ApicReg timer_vector;
        !            66:        ApicReg reserved33;
        !            67:        ApicReg reserved34;
        !            68:        ApicReg lint0_vector;
        !            69:        ApicReg lint1_vector;
        !            70:        ApicReg reserved37;
        !            71:        ApicReg init_count;
        !            72:        ApicReg cur_count;
        !            73:        ApicReg reserved3a;
        !            74:        ApicReg reserved3b;
        !            75:        ApicReg reserved3c;
        !            76:        ApicReg reserved3d;
        !            77:        ApicReg divider_config;
        !            78:        ApicReg reserved3f;
        !            79: } ApicLocalUnit;
        !            80: 
        !            81: 
        !            82: /* Address at which the local unit is mapped in kernel virtual memory.
        !            83:    Must be constant.  */
        !            84: #define APIC_LOCAL_VA  0xc1000000
        !            85: 
        !            86: #define apic_local_unit (*((volatile ApicLocalUnit*)APIC_LOCAL_VA))
        !            87: 
        !            88: 
        !            89: /* Set or clear a bit in a 255-bit APIC mask register.
        !            90:    These registers are spread through eight 32-bit registers.  */
        !            91: #define APIC_SET_MASK_BIT(reg, bit) \
        !            92:        ((reg)[(bit) >> 5].r |= 1 << ((bit) & 0x1f))
        !            93: #define APIC_CLEAR_MASK_BIT(reg, bit) \
        !            94:        ((reg)[(bit) >> 5].r &= ~(1 << ((bit) & 0x1f)))
        !            95: 
        !            96: #endif _IMPS_APIC_

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