irq.c File Reference

#include <kernel/cpu/irq.h>
#include <kernel/cpu/cpu.h>
#include <kernel/cpu/gdt.h>
#include <kernel/cpu/interrupt.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/sync/rwlock.h>
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include <sys/bitmap.h>
#include <sys/list.h>
#include <sys/math.h>

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Functions
static irq_t *	irq_get (irq_virt_t virt)
static uint64_t	irq_update (irq_t *irq)
static irq_domain_t *	irq_domain_lookup (irq_phys_t phys)
static uint64_t	irq_domain_rebind_orphaned_irqs (irq_domain_t *newDomain)
void	irq_init (void)
	Initialize the IRQ subsystem.
void	irq_dispatch (interrupt_frame_t *frame, cpu_t *self)
	Dispatch an IRQ.
uint64_t	irq_virt_alloc (irq_virt_t *out, irq_phys_t phys, irq_flags_t flags, cpu_t *cpu)
	Allocate a virtual IRQ mapped to the given physical IRQ.
void	irq_virt_free (irq_virt_t virt)
	Free a previously allocated virtual IRQ.
uint64_t	irq_virt_set_affinity (irq_virt_t virt, cpu_t *cpu)
	Change the CPU responsible for an IRQ.
uint64_t	irq_chip_register (irq_chip_t *chip, irq_phys_t start, irq_phys_t end, void *private)
	Register an IRQ chip for a range of physical IRQs.
void	irq_chip_unregister (irq_chip_t *chip, irq_phys_t start, irq_phys_t end)
	Unregister all instances of the given IRQ chip within the specified range.
uint64_t	irq_chip_amount (void)
	Get the number of registered IRQ chips.
uint64_t	irq_handler_register (irq_virt_t virt, irq_func_t func, void *private)
	Register an IRQ handler for a virtual IRQ.
void	irq_handler_unregister (irq_func_t func, irq_virt_t virt)
	Unregister an IRQ handler.

Variables
static irq_t	irqs [VECTOR_EXTERNAL_AMOUNT] = {0}
static list_t	domains = LIST_CREATE(domains)
static rwlock_t	domainsLock = RWLOCK_CREATE()

Function Documentation

irq_get()

static irq_t * irq_get ( irq_virt_t  virt )

static

Definition at line 23 of file irq.c.

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irq_update()

static uint64_t irq_update ( irq_t *  irq )

static

Definition at line 33 of file irq.c.

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irq_domain_lookup()

static irq_domain_t * irq_domain_lookup ( irq_phys_t  phys )

static

Definition at line 50 of file irq.c.

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irq_domain_rebind_orphaned_irqs()

static uint64_t irq_domain_rebind_orphaned_irqs ( irq_domain_t *  newDomain )

static

Definition at line 64 of file irq.c.

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Variable Documentation

irqs

irq_t irqs[VECTOR_EXTERNAL_AMOUNT] = {0}

static

Definition at line 17 of file irq.c.

domains

list_t domains = LIST_CREATE(domains)

static

Todo:

Optimize domain lookup?

Definition at line 20 of file irq.c.

domainsLock

rwlock_t domainsLock = RWLOCK_CREATE()

static

Definition at line 21 of file irq.c.