linux-imx

/*

 *  acpi_tables.c - ACPI Boot-Time Table Parsing

 *

 *  Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>

 *

 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 *

 *  This program is free software; you can redistribute it and/or modify

 *  it under the terms of the GNU General Public License as published by

 *  the Free Software Foundation; either version 2 of the License, or

 *  (at your option) any later version.

 *

 *  This program is distributed in the hope that it will be useful,

 *  but WITHOUT ANY WARRANTY; without even the implied warranty of

 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *  GNU General Public License for more details.

 *

 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

 *

 */

​

/* Uncomment next line to get verbose printout */

/* #define DEBUG */

#define pr_fmt(fmt) "ACPI: " fmt

​

#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/smp.h>

#include <linux/string.h>

#include <linux/types.h>

#include <linux/irq.h>

#include <linux/errno.h>

#include <linux/acpi.h>

#include <linux/memblock.h>

#include <linux/earlycpio.h>

#include <linux/initrd.h>

#include "internal.h"

​

#ifdef CONFIG_ACPI_CUSTOM_DSDT

#include CONFIG_ACPI_CUSTOM_DSDT_FILE

#endif

​

#define ACPI_MAX_TABLES     128

​

static char *mps_inti_flags_polarity[] = { "dfl", "high", "res", "low" };

static char *mps_inti_flags_trigger[] = { "dfl", "edge", "res", "level" };

​

static struct acpi_table_desc initial_tables[ACPI_MAX_TABLES] __initdata;

​

static int acpi_apic_instance __initdata;

​

/*

 * Disable table checksum verification for the early stage due to the size

 * limitation of the current x86 early mapping implementation.

 */

static bool acpi_verify_table_checksum __initdata = false;

​

void acpi_table_print_madt_entry(struct acpi_subtable_header *header)

{

    if (!header)

        return;

​

    switch (header->type) {

​

    case ACPI_MADT_TYPE_LOCAL_APIC:

        {

            struct acpi_madt_local_apic *p =

                (struct acpi_madt_local_apic *)header;

            pr_debug("LAPIC (acpi_id[0x%02x] lapic_id[0x%02x] %s)\n",

                 p->processor_id, p->id,

                 (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled");

        }

        break;

​

    case ACPI_MADT_TYPE_LOCAL_X2APIC:

        {

            struct acpi_madt_local_x2apic *p =

                (struct acpi_madt_local_x2apic *)header;

            pr_debug("X2APIC (apic_id[0x%02x] uid[0x%02x] %s)\n",

                 p->local_apic_id, p->uid,

                 (p->lapic_flags & ACPI_MADT_ENABLED) ? "enabled" : "disabled");

        }

        break;

​

    case ACPI_MADT_TYPE_IO_APIC:

        {

            struct acpi_madt_io_apic *p =

                (struct acpi_madt_io_apic *)header;

            pr_debug("IOAPIC (id[0x%02x] address[0x%08x] gsi_base[%d])\n",

                 p->id, p->address, p->global_irq_base);

        }

        break;