linux-imx

#include <linux/cpumask.h>

#include <linux/kernel.h>

#include <linux/string.h>

#include <linux/errno.h>

#include <linux/msi.h>

#include <linux/irq.h>

#include <linux/pci.h>

#include <linux/irqdomain.h>

​

#include <asm/hw_irq.h>

#include <asm/irq_remapping.h>

#include <asm/processor.h>

#include <asm/x86_init.h>

#include <asm/apic.h>

#include <asm/hpet.h>

​

#include "irq_remapping.h"

​

int irq_remapping_enabled;

int irq_remap_broken;

int disable_sourceid_checking;

int no_x2apic_optout;

​

int disable_irq_post = 0;

​

static int disable_irq_remap;

static struct irq_remap_ops *remap_ops;

​

static void irq_remapping_restore_boot_irq_mode(void)

{

    /*

     * With interrupt-remapping, for now we will use virtual wire A

     * mode, as virtual wire B is little complex (need to configure

     * both IOAPIC RTE as well as interrupt-remapping table entry).

     * As this gets called during crash dump, keep this simple for

     * now.

     */

    if (boot_cpu_has(X86_FEATURE_APIC) || apic_from_smp_config())

        disconnect_bsp_APIC(0);

}

​

static void __init irq_remapping_modify_x86_ops(void)

{

    x86_apic_ops.restore = irq_remapping_restore_boot_irq_mode;

}

​

static __init int setup_nointremap(char *str)

{

    disable_irq_remap = 1;

    return 0;

}

early_param("nointremap", setup_nointremap);

​

static __init int setup_irqremap(char *str)

{

    if (!str)

        return -EINVAL;

​

    while (*str) {

        if (!strncmp(str, "on", 2)) {

            disable_irq_remap = 0;

            disable_irq_post = 0;

        } else if (!strncmp(str, "off", 3)) {