apic.c File Reference

#include <hal/cpu/core.h>
#include "hal/cpu/msr.h"
#include "libk/io.h"
#include "libk/serial.h"
#include <hal/acpi/acpi.h>
#include <hal/apic/apic.h>
#include <hal/cpu/cpuid.h>

Go to the source code of this file.

Macros
#define	APIC_BASE_ADDR   0x1B
#define	X2_APIC_ICR   0x830
#define	ENABLE_APIC_BIT   1 << 11
#define	ENABLE_X2_APIC_BIT   1 << 10

Functions
void	apicSetBaseAddr (uintptr_t addr)
static void	enable_x2apic ()
void	apic_write (uint32_t reg, uint32_t value)
uint32_t	apic_read (uint32_t reg)
void	apicInitialize ()
void	apic_send_ipi (uint8_t vector, uint8_t dest)
void	apic_eoi ()

Variables
uintptr_t	lapic_base_addr = 0
uint8_t	x2_apic_supported = 0

Macro Definition Documentation

APIC_BASE_ADDR

#define APIC_BASE_ADDR   0x1B

Definition at line 9 of file apic.c.

ENABLE_APIC_BIT

#define ENABLE_APIC_BIT   1 << 11

Definition at line 12 of file apic.c.

ENABLE_X2_APIC_BIT

#define ENABLE_X2_APIC_BIT   1 << 10

Definition at line 13 of file apic.c.

X2_APIC_ICR

#define X2_APIC_ICR   0x830

Definition at line 10 of file apic.c.

Function Documentation

apic_eoi()

void apic_eoi

(

)

Definition at line 102 of file apic.c.

References APIC_EOI, and apic_write().

Referenced by __attribute__().

apic_read()

uint32_t apic_read

(

uint32_t

reg

)

Definition at line 49 of file apic.c.

References lapic_base_addr, mmio_inl(), reg, vxRDMSR(), and x2_apic_supported.

Referenced by apicInitialize(), sipi_sequential(), vxAPICCreateTimer(), and vxAPICTimerCalibrationUsingHPET().

apic_send_ipi()

void apic_send_ipi	(	uint8_t	vector,
		uint8_t	dest )

Definition at line 97 of file apic.c.

References APIC_ICR_HIGH, APIC_ICR_LOW, apic_write(), and vector.

apic_write()

void apic_write	(	uint32_t	reg,
		uint32_t	value )

Definition at line 40 of file apic.c.

References lapic_base_addr, mmio_outl(), reg, value, vxWRSR(), and x2_apic_supported.

Referenced by apic_eoi(), apic_send_ipi(), apicInitialize(), sipi_sequential(), vxAPICCreateDeadlineTimer(), vxAPICCreateTimer(), and vxAPICTimerCalibrationUsingHPET().

apicInitialize()

void apicInitialize

(

)

Definition at line 62 of file apic.c.

References APIC_DFR, APIC_EOI, APIC_ESR, APIC_LVT_ERR, APIC_LVT_LINT0, APIC_LVT_LINT1, APIC_LVT_PERF, APIC_LVT_TMR, apic_read(), APIC_SVR, APIC_TPR, apic_write(), cpuid(), enable_x2apic(), LOG_DEBUG, update_core_gs(), vxRDMSR(), and x2_apic_supported.

Referenced by __attribute__(), and parsing_madt().

apicSetBaseAddr()

void apicSetBaseAddr

(

uintptr_t

addr

)

Definition at line 58 of file apic.c.

References addr, and lapic_base_addr.

Referenced by parsing_madt().

enable_x2apic()

static void enable_x2apic ( )

static

Definition at line 20 of file apic.c.

References LOG_INFO, vxRDMSR(), vxWRSR(), and x2_apic_supported.

Referenced by apicInitialize().

Variable Documentation

lapic_base_addr

uintptr_t lapic_base_addr = 0

Definition at line 15 of file apic.c.

Referenced by apic_read(), apic_write(), and apicSetBaseAddr().

x2_apic_supported

uint8_t x2_apic_supported = 0

Definition at line 16 of file apic.c.

Referenced by apic_read(), apic_write(), apicInitialize(), enable_x2apic(), initTimer(), and sipi_sequential().