| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 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 | |
| 7 | /* arch_initcall has too random ordering, so call the initializers |
| 8 | in the right sequence from here. */ |
| 9 | static __init int pci_arch_init(void) |
| 10 | { |
| 11 | #ifdef CONFIG_PCI_DIRECT |
| 12 | int type = 0; |
| 13 | |
| 14 | type = pci_direct_probe(); |
| 15 | #endif |
| 16 | |
| 17 | if (!(pci_probe & PCI_PROBE_NOEARLY)) |
| 18 | pci_mmcfg_early_init(); |
| 19 | |
| 20 | if (x86_init.pci.arch_init && !x86_init.pci.arch_init()) |
| 21 | return 0; |
| 22 | |
| 23 | #ifdef CONFIG_PCI_BIOS |
| 24 | pci_pcbios_init(); |
| 25 | #endif |
| 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 | #ifdef CONFIG_PCI_DIRECT |
| 33 | pci_direct_init(type); |
| 34 | #endif |
| 35 | if (!raw_pci_ops && !raw_pci_ext_ops) |
| 36 | printk(KERN_ERR |
| 37 | "PCI: Fatal: No config space access function found\n"); |
| 38 | |
| 39 | dmi_check_pciprobe(); |
| 40 | |
| 41 | dmi_check_skip_isa_align(); |
| 42 | |
| 43 | return 0; |
| 44 | } |
| 45 | arch_initcall(pci_arch_init); |