xv6/lapic.c File Reference

#include "types.h"
#include "defs.h"
#include "traps.h"
#include "mmu.h"
#include "x86.h"

Go to the source code of this file.

Defines
#define	ID   (0x0020/4)
#define	VER   (0x0030/4)
#define	TPR   (0x0080/4)
#define	EOI   (0x00B0/4)
#define	SVR   (0x00F0/4)
#define	ENABLE   0x00000100
#define	ESR   (0x0280/4)
#define	ICRLO   (0x0300/4)
#define	INIT   0x00000500
#define	STARTUP   0x00000600
#define	DELIVS   0x00001000
#define	ASSERT   0x00004000
#define	LEVEL   0x00008000
#define	BCAST   0x00080000
#define	ICRHI   (0x0310/4)
#define	TIMER   (0x0320/4)
#define	X1   0x0000000B
#define	PERIODIC   0x00020000
#define	PCINT   (0x0340/4)
#define	LINT0   (0x0350/4)
#define	LINT1   (0x0360/4)
#define	ERROR   (0x0370/4)
#define	MASKED   0x00010000
#define	TICR   (0x0380/4)
#define	TCCR   (0x0390/4)
#define	TDCR   (0x03E0/4)
#define	IO_RTC   0x70
Functions
static void	lapicw (int index, int value)
void	lapicinit (int c)
int	cpunum (void)
void	lapiceoi (void)
void	microdelay (int us)
void	lapicstartap (uchar apicid, uint addr)
Variables
volatile uint *	lapic

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Define Documentation

#define ASSERT   0x00004000

Definition at line 22 of file lapic.c.

Referenced by lapicstartap().

#define BCAST   0x00080000

Definition at line 24 of file lapic.c.

Referenced by lapicinit().

#define DELIVS   0x00001000

Definition at line 21 of file lapic.c.

Referenced by lapicinit().

#define ENABLE   0x00000100

Definition at line 16 of file lapic.c.

Referenced by lapicinit().

#define EOI   (0x00B0/4)

Definition at line 14 of file lapic.c.

Referenced by lapiceoi(), and lapicinit().

#define ERROR   (0x0370/4)

Definition at line 32 of file lapic.c.

Referenced by lapicinit().

#define ESR   (0x0280/4)

Definition at line 17 of file lapic.c.

Referenced by lapicinit().

#define ICRHI   (0x0310/4)

Definition at line 25 of file lapic.c.

Referenced by lapicinit(), and lapicstartap().

#define ICRLO   (0x0300/4)

Definition at line 18 of file lapic.c.

Referenced by lapicinit(), and lapicstartap().

#define ID   (0x0020/4)

Definition at line 11 of file lapic.c.

Referenced by cpunum(), and lapicw().

#define INIT   0x00000500

Definition at line 19 of file lapic.c.

Referenced by lapicinit(), and lapicstartap().

#define IO_RTC   0x70

Definition at line 129 of file lapic.c.

Referenced by lapicstartap().

#define LEVEL   0x00008000

Definition at line 23 of file lapic.c.

Referenced by lapicinit(), and lapicstartap().

#define LINT0   (0x0350/4)

Definition at line 30 of file lapic.c.

Referenced by lapicinit().

#define LINT1   (0x0360/4)

Definition at line 31 of file lapic.c.

Referenced by lapicinit().

#define MASKED   0x00010000

Definition at line 33 of file lapic.c.

Referenced by lapicinit().

#define PCINT   (0x0340/4)

Definition at line 29 of file lapic.c.

Referenced by lapicinit().

#define PERIODIC   0x00020000

Definition at line 28 of file lapic.c.

Referenced by lapicinit().

#define STARTUP   0x00000600

Definition at line 20 of file lapic.c.

Referenced by lapicstartap().

#define SVR   (0x00F0/4)

Definition at line 15 of file lapic.c.

Referenced by lapicinit().

#define TCCR   (0x0390/4)

Definition at line 35 of file lapic.c.

#define TDCR   (0x03E0/4)

Definition at line 36 of file lapic.c.

Referenced by lapicinit().

#define TICR   (0x0380/4)

Definition at line 34 of file lapic.c.

Referenced by lapicinit().

#define TIMER   (0x0320/4)

Definition at line 26 of file lapic.c.

Referenced by lapicinit().

#define TPR   (0x0080/4)

Definition at line 13 of file lapic.c.

Referenced by lapicinit().

#define VER   (0x0030/4)

Definition at line 12 of file lapic.c.

Referenced by lapicinit().

#define X1   0x0000000B

Definition at line 27 of file lapic.c.

Referenced by lapicinit().

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Function Documentation

int cpunum

(

void

)

Definition at line 94 of file lapic.c.

References cprintf(), FL_IF, ID, lapic, and readeflags().

Referenced by bootothers(), and ksegment().

void lapiceoi

(

void

)

Definition at line 115 of file lapic.c.

References EOI, lapic, and lapicw().

Referenced by trap().

void lapicinit

(

int

c

)

Definition at line 48 of file lapic.c.

References BCAST, DELIVS, ENABLE, EOI, ERROR, ESR, ICRHI, ICRLO, INIT, IRQ_ERROR, IRQ_SPURIOUS, IRQ_TIMER, lapic, lapicw(), LEVEL, LINT0, LINT1, MASKED, PCINT, PERIODIC, SVR, T_IRQ0, TDCR, TICR, TIMER, TPR, VER, and X1.

Referenced by mpmain().

void lapicstartap	(	uchar	apicid,
		uint	addr
	)

Definition at line 134 of file lapic.c.

References ASSERT, ICRHI, ICRLO, INIT, IO_RTC, lapicw(), LEVEL, microdelay(), outb(), and STARTUP.

Referenced by bootothers().

static void lapicw	(	int	index,
		int	value
	)			[static]

Definition at line 41 of file lapic.c.

References ID, and lapic.

Referenced by lapiceoi(), lapicinit(), and lapicstartap().

void microdelay

(

int

us

)

Definition at line 124 of file lapic.c.

Referenced by lapicstartap(), and uartputc().

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Variable Documentation

volatile uint* lapic

Definition at line 38 of file lapic.c.

Referenced by cpunum(), lapiceoi(), lapicinit(), lapicw(), and mpinit().