// SPDX-License-Identifier: GPL-2.0
#include <linux/pci.h>
#include <linux/init.h>
#include <asm/pci_x86.h>
#include <asm/x86_init.h>
#include <asm/irqdomain.h>

/* arch_initcall has too random ordering, so call the initializers
   in the right sequence from here. */
static __init int pci_arch_init(void)
{
        int type, pcbios = 1;

        type = pci_direct_probe();

        if (!(pci_probe & PCI_PROBE_NOEARLY))
                pci_mmcfg_early_init();

        if (x86_init.pci.arch_init)
                pcbios = x86_init.pci.arch_init();

        /*
         * Must happen after x86_init.pci.arch_init(). Xen sets up the
         * x86_init.irqs.create_pci_msi_domain there.
         */
        x86_create_pci_msi_domain();

        if (!pcbios)
                return 0;

        pci_pcbios_init();

        /*
         * don't check for raw_pci_ops here because we want pcbios as last
         * fallback, yet it's needed to run first to set pcibios_last_bus
         * in case legacy PCI probing is used. otherwise detecting peer busses
         * fails.
         */
        pci_direct_init(type);

        if (!raw_pci_ops && !raw_pci_ext_ops)
                printk(KERN_ERR
                "PCI: Fatal: No config space access function found\n");

        dmi_check_pciprobe();

        dmi_check_skip_isa_align();

        return 0;
}
arch_initcall(pci_arch_init);