ioapic.h File Reference

#include <types.h>

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Macros
#define	IO_APIC_ADDR   0xfec00000
#define	VIO_APIC_VADDR   ((u8 *)IO_APIC_ADDR)
#define	IO_APIC_INTERRUPTS   24
#define	ALL   (0xff << 24)
#define	NONE   (0)
#define	INT_DISABLED   (1 << 16)
#define	INT_ENABLED   (0 << 16)
#define	TRIGGER_EDGE   (0 << 15)
#define	TRIGGER_LEVEL   (1 << 15)
#define	POLARITY_HIGH   (0 << 13)
#define	POLARITY_LOW   (1 << 13)
#define	PHYSICAL_DEST   (0 << 11)
#define	LOGICAL_DEST   (1 << 11)
#define	ExtINT   (7 << 8)
#define	NMI   (4 << 8)
#define	SMI   (2 << 8)
#define	INT   (1 << 8)

Functions
u32	io_apic_read (void *ioapic_base, u32 reg)
void	io_apic_write (void *ioapic_base, u32 reg, u32 value)
void	set_ioapic_id (void *ioapic_base, u8 ioapic_id)
u8	get_ioapic_id (void *ioapic_base)
u8	get_ioapic_version (void *ioapic_base)
unsigned int	ioapic_get_max_vectors (void *ioapic_base)
void	ioapic_set_max_vectors (void *ioapic_base, int mre_count)
void	ioapic_lock_max_vectors (void *ioapic_base)
void	setup_ioapic (void *ioapic_base, u8 ioapic_id)
void	ioapic_set_boot_config (void *ioapic_base, bool irq_on_fsb)

Macro Definition Documentation

ALL

#define ALL   (0xff << 24)

Definition at line 14 of file ioapic.h.

ExtINT

#define ExtINT   (7 << 8)

Definition at line 24 of file ioapic.h.

INT

#define INT   (1 << 8)

Definition at line 27 of file ioapic.h.

INT_DISABLED

#define INT_DISABLED   (1 << 16)

Definition at line 16 of file ioapic.h.

INT_ENABLED

#define INT_ENABLED   (0 << 16)

Definition at line 17 of file ioapic.h.

IO_APIC_ADDR

#define IO_APIC_ADDR   0xfec00000

Definition at line 6 of file ioapic.h.

IO_APIC_INTERRUPTS

#define IO_APIC_INTERRUPTS   24

Definition at line 8 of file ioapic.h.

LOGICAL_DEST

#define LOGICAL_DEST   (1 << 11)

Definition at line 23 of file ioapic.h.

NMI

#define NMI   (4 << 8)

Definition at line 25 of file ioapic.h.

NONE

#define NONE   (0)

Definition at line 15 of file ioapic.h.

PHYSICAL_DEST

#define PHYSICAL_DEST   (0 << 11)

Definition at line 22 of file ioapic.h.

POLARITY_HIGH

#define POLARITY_HIGH   (0 << 13)

Definition at line 20 of file ioapic.h.

POLARITY_LOW

#define POLARITY_LOW   (1 << 13)

Definition at line 21 of file ioapic.h.

SMI

#define SMI   (2 << 8)

Definition at line 26 of file ioapic.h.

TRIGGER_EDGE

#define TRIGGER_EDGE   (0 << 15)

Definition at line 18 of file ioapic.h.

TRIGGER_LEVEL

#define TRIGGER_LEVEL   (1 << 15)

Definition at line 19 of file ioapic.h.

VIO_APIC_VADDR

#define VIO_APIC_VADDR   ((u8 *)IO_APIC_ADDR)

Definition at line 7 of file ioapic.h.

Function Documentation

get_ioapic_id()

u8 get_ioapic_id

(

void *

ioapic_base

)

Definition at line 133 of file ioapic.c.

References io_apic_read().

Referenced by isa_init(), and smp_write_ioapic_from_hw().

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get_ioapic_version()

u8 get_ioapic_version

(

void *

ioapic_base

)

Definition at line 138 of file ioapic.c.

References io_apic_read().

Referenced by smp_write_ioapic_from_hw().

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io_apic_read()

u32 io_apic_read	(	void *	ioapic_base,
		u32	reg
	)

Definition at line 9 of file ioapic.c.

References read32(), and write32().

Referenced by clear_vectors(), get_ioapic_id(), get_ioapic_version(), ioapic_get_max_vectors(), ioapic_set_boot_config(), ioapic_set_max_vectors(), route_i8259_irq0(), and set_ioapic_id().

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io_apic_write()

void io_apic_write	(	void *	ioapic_base,
		u32	reg,
		u32	value
	)

Definition at line 15 of file ioapic.c.

References value, and write32().

Referenced by ioapic_set_boot_config(), ioapic_set_max_vectors(), set_ioapic_id(), and write_vector().

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ioapic_get_max_vectors()

unsigned int ioapic_get_max_vectors

(

void *

ioapic_base

)

Definition at line 32 of file ioapic.c.

References BIOS_DEBUG, count, io_apic_read(), and printk.

Referenced by setup_ioapic().

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ioapic_lock_max_vectors()

void ioapic_lock_max_vectors

(

void *

ioapic_base

)

Definition at line 65 of file ioapic.c.

References ioapic_set_max_vectors().

Referenced by i82801ix_enable_apic(), i82801jx_enable_apic(), and pch_enable_ioapic().

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ioapic_set_boot_config()

void ioapic_set_boot_config	(	void *	ioapic_base,
		bool	irq_on_fsb
	)

Definition at line 143 of file ioapic.c.

References BIOS_DEBUG, io_apic_read(), io_apic_write(), and printk.

Referenced by i82801dx_enable_ioapic().

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ioapic_set_max_vectors()

void ioapic_set_max_vectors	(	void *	ioapic_base,
		int	mre_count
	)

Definition at line 51 of file ioapic.c.

References count, io_apic_read(), and io_apic_write().

Referenced by ioapic_lock_max_vectors(), and pch_enable_ioapic().

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set_ioapic_id()

void set_ioapic_id	(	void *	ioapic_base,
		u8	ioapic_id
	)

Definition at line 111 of file ioapic.c.

References BIOS_DEBUG, BIOS_SPEW, io_apic_read(), io_apic_write(), and printk.

Referenced by setup_ioapic().

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setup_ioapic()

void setup_ioapic	(	void *	ioapic_base,
		u8	ioapic_id
	)

Definition at line 160 of file ioapic.c.

References clear_vectors(), ioapic_get_max_vectors(), route_i8259_irq0(), and set_ioapic_id().

Referenced by fch_ioapic_init(), i82801dx_enable_ioapic(), i82801gx_enable_ioapic(), i82801ix_enable_apic(), i82801jx_enable_apic(), ioapic_init(), isa_init(), northbridge_init(), pch_enable_ioapic(), root_complex_init(), sb800_enable(), and sm_init().

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