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/*
* Copyright (c) 1994 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Author: Bryan Ford, University of Utah CSL
*/
#ifndef _IMPS_APIC_
#define _IMPS_APIC_
typedef struct ApicReg
{
unsigned r; /* the actual register */
unsigned p[3]; /* pad to the next 128-bit boundary */
} ApicReg;
typedef struct ApicIoUnit
{
ApicReg select;
ApicReg window;
} ApicIoUnit;
#define APIC_IO_UNIT_ID 0x00
#define APIC_IO_VERSION 0x01
#define APIC_IO_REDIR_LOW(int_pin) (0x10+(int_pin)*2)
#define APIC_IO_REDIR_HIGH(int_pin) (0x11+(int_pin)*2)
typedef struct ApicLocalUnit
{
ApicReg reserved0;
ApicReg reserved1;
ApicReg unit_id;
ApicReg version;
ApicReg reserved4;
ApicReg reserved5;
ApicReg reserved6;
ApicReg reserved7;
ApicReg task_pri;
ApicReg reservedb;
ApicReg reservedc;
ApicReg eoi;
ApicReg remote;
ApicReg logical_dest;
ApicReg dest_format;
ApicReg spurious_vector;
ApicReg isr[8];
ApicReg tmr[8];
ApicReg irr[8];
ApicReg reserved28[8];
ApicReg int_command[2];
ApicReg timer_vector;
ApicReg reserved33;
ApicReg reserved34;
ApicReg lint0_vector;
ApicReg lint1_vector;
ApicReg reserved37;
ApicReg init_count;
ApicReg cur_count;
ApicReg reserved3a;
ApicReg reserved3b;
ApicReg reserved3c;
ApicReg reserved3d;
ApicReg divider_config;
ApicReg reserved3f;
} ApicLocalUnit;
/* Address at which the local unit is mapped in kernel virtual memory.
Must be constant. */
#define APIC_LOCAL_VA 0xc1000000
#define apic_local_unit (*((volatile ApicLocalUnit*)APIC_LOCAL_VA))
/* Set or clear a bit in a 255-bit APIC mask register.
These registers are spread through eight 32-bit registers. */
#define APIC_SET_MASK_BIT(reg, bit) \
((reg)[(bit) >> 5].r |= 1 << ((bit) & 0x1f))
#define APIC_CLEAR_MASK_BIT(reg, bit) \
((reg)[(bit) >> 5].r &= ~(1 << ((bit) & 0x1f)))
#endif _IMPS_APIC_
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