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r: 79814
b: refs/heads/master
c: e1d9197
h: refs/heads/master
v: v3
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Thomas Gleixner authored and Ingo Molnar committed Jan 30, 2008
1 parent 1eb8c43 commit 5312245
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 8a423ff0c4a0472607bbed6790fdaeec54af2ebb
refs/heads/master: e1d9197862ff4d950dab45669b7f37b5ec3219d8
158 changes: 156 additions & 2 deletions trunk/include/asm-x86/io_apic.h
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#ifndef __ASM_IO_APIC_H
#define __ASM_IO_APIC_H

#include <asm/types.h>
#include <asm/mpspec.h>
#include <asm/apicdef.h>

/*
* Intel IO-APIC support for SMP and UP systems.
*
* Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar
*/

/*
* The structure of the IO-APIC:
*/
union IO_APIC_reg_00 {
u32 raw;
struct {
u32 __reserved_2 : 14,
LTS : 1,
delivery_type : 1,
__reserved_1 : 8,
ID : 8;
} __attribute__ ((packed)) bits;
};

union IO_APIC_reg_01 {
u32 raw;
struct {
u32 version : 8,
__reserved_2 : 7,
PRQ : 1,
entries : 8,
__reserved_1 : 8;
} __attribute__ ((packed)) bits;
};

union IO_APIC_reg_02 {
u32 raw;
struct {
u32 __reserved_2 : 24,
arbitration : 4,
__reserved_1 : 4;
} __attribute__ ((packed)) bits;
};

union IO_APIC_reg_03 {
u32 raw;
struct {
u32 boot_DT : 1,
__reserved_1 : 31;
} __attribute__ ((packed)) bits;
};

enum ioapic_irq_destination_types {
dest_Fixed = 0,
dest_LowestPrio = 1,
dest_SMI = 2,
dest__reserved_1 = 3,
dest_NMI = 4,
dest_INIT = 5,
dest__reserved_2 = 6,
dest_ExtINT = 7
};

struct IO_APIC_route_entry {
__u32 vector : 8,
delivery_mode : 3, /* 000: FIXED
* 001: lowest prio
* 111: ExtINT
*/
dest_mode : 1, /* 0: physical, 1: logical */
delivery_status : 1,
polarity : 1,
irr : 1,
trigger : 1, /* 0: edge, 1: level */
mask : 1, /* 0: enabled, 1: disabled */
__reserved_2 : 15;

#ifdef CONFIG_X86_32
# include "io_apic_32.h"
union {
struct {
__u32 __reserved_1 : 24,
physical_dest : 4,
__reserved_2 : 4;
} physical;

struct {
__u32 __reserved_1 : 24,
logical_dest : 8;
} logical;
} dest;
#else
# include "io_apic_64.h"
__u32 __reserved_3 : 24,
dest : 8;
#endif

} __attribute__ ((packed));

#ifdef CONFIG_X86_IO_APIC

/*
* # of IO-APICs and # of IRQ routing registers
*/
extern int nr_ioapics;
extern int nr_ioapic_registers[MAX_IO_APICS];

/*
* MP-BIOS irq configuration table structures:
*/

/* I/O APIC entries */
extern struct mpc_config_ioapic mp_ioapics[MAX_IO_APICS];

/* # of MP IRQ source entries */
extern int mp_irq_entries;

/* MP IRQ source entries */
extern struct mpc_config_intsrc mp_irqs[MAX_IRQ_SOURCES];

/* non-0 if default (table-less) MP configuration */
extern int mpc_default_type;

/* Older SiS APIC requires we rewrite the index register */
extern int sis_apic_bug;

/* 1 if "noapic" boot option passed */
extern int skip_ioapic_setup;

static inline void disable_ioapic_setup(void)
{
skip_ioapic_setup = 1;
}

/*
* If we use the IO-APIC for IRQ routing, disable automatic
* assignment of PCI IRQ's.
*/
#define io_apic_assign_pci_irqs \
(mp_irq_entries && !skip_ioapic_setup && io_apic_irqs)

#ifdef CONFIG_ACPI
extern int io_apic_get_unique_id(int ioapic, int apic_id);
extern int io_apic_get_version(int ioapic);
extern int io_apic_get_redir_entries(int ioapic);
extern int io_apic_set_pci_routing(int ioapic, int pin, int irq,
int edge_level, int active_high_low);
extern int timer_uses_ioapic_pin_0;
#endif /* CONFIG_ACPI */

extern int (*ioapic_renumber_irq)(int ioapic, int irq);
extern void ioapic_init_mappings(void);

#else /* !CONFIG_X86_IO_APIC */
#define io_apic_assign_pci_irqs 0
#endif

#endif
155 changes: 0 additions & 155 deletions trunk/include/asm-x86/io_apic_32.h

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