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/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001 MandrakeSoft S.A.
//
// MandrakeSoft S.A.
// 43, rue d'Aboukir
// 75002 Paris - France
// http://www.linux-mandrake.com/
// http://www.mandrakesoft.com/
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
#ifndef __IOAPIC_H
#define __IOAPIC_H
#include "xc.h"
#include <io/ioreq.h>
#include <io/vmx_vlapic.h>
#define IOAPIC_NUM_PINS 24
#define IOAPIC_VERSION_ID 0x11
#define IOAPIC_LEVEL_TRIGGER 1
#define APIC_DM_FIXED 0
#define APIC_DM_LOWPRI 1
#ifdef CONFIG_SMP
#define LOCK_PREFIX "lock ; "
#else
#define LOCK_PREFIX ""
#endif
#ifdef __I386__
#define __OS "q"
#define __OP "r"
#else
#define __OS "l" /* Operation Suffix */
#define __OP "e" /* Operand Prefix */
#endif
#define ADDR (*(volatile long *) addr)
#if 0
#endif
extern void *shared_page;
extern FILE *logfile;
#ifdef __BIGENDIAN__
typedef union RedirStatus
{
uint64_t value;
struct {
uint8_t dest_id;
uint8_t reserved[4];
uint8_t reserve:7;
uint8_t mask:1; /* interrupt mask*/
uint8_t trigmod:1;
uint8_t remoteirr:1;
uint8_t polarity:1;
uint8_t delivestatus:1;
uint8_t destmode:1;
uint8_t deliver_mode:3;
uint8_t vector;
}RedirForm;
}RedirStatus;
#else
typedef union RedirStatus
{
uint64_t value;
struct {
uint8_t vector;
uint8_t deliver_mode:3;
uint8_t destmode:1;
uint8_t delivestatus:1;
uint8_t polarity:1;
uint8_t remoteirr:1;
uint8_t trigmod:1;
uint8_t mask:1; /* interrupt mask*/
uint8_t reserve:7;
uint8_t reserved[4];
uint8_t dest_id;
}RedirForm;
}RedirStatus;
#endif
/*
* IOAPICState stands for a instance of a IOAPIC
*/
/* FIXME tmp before working with Local APIC */
#define IOAPIC_MEM_LENGTH 0x100
#define IOAPIC_ENABLE_MASK 0x0
#define IOAPIC_ENABLE_FLAG (1 << IOAPIC_ENABLE_MASK)
#define MAX_LAPIC_NUM 32
struct IOAPICState{
uint32_t INTR;
uint32_t id;
uint32_t arb_id;
uint32_t flags;
unsigned long base_address;
uint32_t irr;
uint32_t isr; /* This is used for level trigger */
uint8_t vector_irr[256];
RedirStatus redirtbl[IOAPIC_NUM_PINS];
uint32_t ioregsel;
uint32_t lapic_count;
vlapic_info *lapic_info[MAX_LAPIC_NUM];
};
#define IOAPIC_REG_APIC_ID 0x0
#define IOAPIC_REG_VERSION 0x1
#define IOAPIC_REG_ARB_ID 0x2
#define IOAPICEnabled(s) (s->flags & IOAPIC_ENABLE_FLAG)
typedef struct IOAPICState IOAPICState;
#endif
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