1 // SPDX-License-Identifier: GPL-2.0-only
8  * mmconfig.c - Low-level direct PCI config space access via MMCONFIG
25  * Functions for accessing PCI configuration space with MMCONFIG accesses
29 	struct pci_mmcfg_region *cfg = pci_mmconfig_lookup(seg, bus);  in get_base_addr()  local
31 	if (cfg)  in get_base_addr()
32 		return cfg->address;  in get_base_addr()
58 err:		*value = -1;  in pci_mmcfg_read()
59 		return -EINVAL;  in pci_mmcfg_read()
97 		return -EINVAL;  in pci_mmcfg_write()
103 		return -EINVAL;  in pci_mmcfg_write()
134 	printk(KERN_INFO "PCI: Using MMCONFIG for extended config space\n");  in pci_mmcfg_arch_init()
143 int pci_mmcfg_arch_map(struct pci_mmcfg_region *cfg)  in pci_mmcfg_arch_map()  argument
148 void pci_mmcfg_arch_unmap(struct pci_mmcfg_region *cfg)  in pci_mmcfg_arch_unmap()  argument