acpi_tables.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <acpi/acpi.h>
#include <arch/ioapic.h>
 
unsigned long acpi_fill_madt(unsigned long current)
{
        /* create all subtables for processors */
        current = acpi_create_madt_lapics(current);
 
        /* Write Hudson IOAPIC, only one */
        current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, CONFIG_MAX_CPUS,
                                           IO_APIC_ADDR, 0);
 
        current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
                                                current, 0, 0, 2, 0);
        current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
                                                current, 0, 9, 9, 0xF);
        /* 0: mean bus 0--->ISA */
        /* 0: PIC 0 */
        /* 2: APIC 2 */
        /* 5 mean: 0101 --> Edge-triggered, Active high */
 
        /* create all subtables for processors */
        current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, 0xff, 5, 1);
        /* 1: LINT1 connect to NMI */
 
        return current;
}