xv6/ioapic.c File Reference

#include "types.h"
#include "defs.h"
#include "traps.h"

Go to the source code of this file.

Data Structures
struct	ioapic
Defines
#define	IOAPIC   0xFEC00000
#define	REG_ID   0x00
#define	REG_VER   0x01
#define	REG_TABLE   0x10
#define	INT_DISABLED   0x00010000
#define	INT_LEVEL   0x00008000
#define	INT_ACTIVELOW   0x00002000
#define	INT_LOGICAL   0x00000800
Functions
static uint	ioapicread (int reg)
static void	ioapicwrite (int reg, uint data)
void	ioapicinit (void)
void	ioapicenable (int irq, int cpunum)
Variables
struct ioapic *	ioapic

---

Define Documentation

#define INT_ACTIVELOW   0x00002000

Definition at line 22 of file ioapic.c.

#define INT_DISABLED   0x00010000

Definition at line 20 of file ioapic.c.

Referenced by ioapicinit().

#define INT_LEVEL   0x00008000

Definition at line 21 of file ioapic.c.

#define INT_LOGICAL   0x00000800

Definition at line 23 of file ioapic.c.

#define IOAPIC   0xFEC00000

Definition at line 9 of file ioapic.c.

Referenced by ioapicinit().

#define REG_ID   0x00

Definition at line 11 of file ioapic.c.

Referenced by ioapicinit().

#define REG_TABLE   0x10

Definition at line 13 of file ioapic.c.

Referenced by ioapicenable(), and ioapicinit().

#define REG_VER   0x01

Definition at line 12 of file ioapic.c.

Referenced by ioapicinit().

---

Function Documentation

void ioapicenable	(	int	irq,
		int	cpunum
	)

Definition at line 71 of file ioapic.c.

References ioapicwrite(), ismp, REG_TABLE, and T_IRQ0.

Referenced by consoleinit(), ideinit(), and uartinit().

void ioapicinit

(

void

)

Definition at line 49 of file ioapic.c.

References cprintf(), INT_DISABLED, IOAPIC, ioapicid, ioapicread(), ioapicwrite(), ismp, REG_ID, REG_TABLE, REG_VER, and T_IRQ0.

Referenced by mpmain().

static uint ioapicread

(

int

reg

)

[static]

Definition at line 35 of file ioapic.c.

References ioapic::data, and ioapic::reg.

Referenced by ioapicinit().

static void ioapicwrite	(	int	reg,
		uint	data
	)			[static]

Definition at line 42 of file ioapic.c.

References ioapic::data, and ioapic::reg.

Referenced by ioapicenable(), and ioapicinit().

---

Variable Documentation

struct ioapic* ioapic

Definition at line 25 of file ioapic.c.