1 // SPDX-License-Identifier: GPL-2.0 2 #include <linux/pci.h> 3 #include <linux/init.h> 4 #include <asm/pci_x86.h> 5 #include <asm/x86_init.h> 6 #include <asm/irqdomain.h> 7 8 /* arch_initcall has too random ordering, so call the initializers 9 in the right sequence from here. */ 10 static __init int pci_arch_init(void) 11 { 12 int type; 13 14 x86_create_pci_msi_domain(); 15 16 type = pci_direct_probe(); 17 18 if (!(pci_probe & PCI_PROBE_NOEARLY)) 19 pci_mmcfg_early_init(); 20 21 if (x86_init.pci.arch_init && !x86_init.pci.arch_init()) 22 return 0; 23 24 pci_pcbios_init(); 25 26 /* 27 * don't check for raw_pci_ops here because we want pcbios as last 28 * fallback, yet it's needed to run first to set pcibios_last_bus 29 * in case legacy PCI probing is used. otherwise detecting peer busses 30 * fails. 31 */ 32 pci_direct_init(type); 33 34 if (!raw_pci_ops && !raw_pci_ext_ops) 35 printk(KERN_ERR 36 "PCI: Fatal: No config space access function found\n"); 37 38 dmi_check_pciprobe(); 39 40 dmi_check_skip_isa_align(); 41 42 return 0; 43 } 44 arch_initcall(pci_arch_init); 45