24 int pci_enable_rom(struct pci_dev *pdev)  in pci_enable_rom()  argument
26 	struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];  in pci_enable_rom()
42 	pcibios_resource_to_bus(pdev->bus, &region, res);  in pci_enable_rom()
43 	pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_addr);  in pci_enable_rom()
46 	pci_write_config_dword(pdev, pdev->rom_base_reg, rom_addr);  in pci_enable_rom()
58 void pci_disable_rom(struct pci_dev *pdev)  in pci_disable_rom()  argument
60 	struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];  in pci_disable_rom()
66 	pci_read_config_dword(pdev, pdev->rom_base_reg, &rom_addr);  in pci_disable_rom()
68 	pci_write_config_dword(pdev, pdev->rom_base_reg, rom_addr);  in pci_disable_rom()
83 static size_t pci_get_rom_size(struct pci_dev *pdev, void __iomem *rom,  in pci_get_rom_size()  argument
95 			pci_info(pdev, "Invalid PCI ROM header signature: expecting 0xaa55, got %#06x\n",  in pci_get_rom_size()
102 			pci_info(pdev, "Invalid PCI ROM data signature: expecting 0x52494350, got %#010x\n",  in pci_get_rom_size()
114 				pci_info(pdev, "No more image in the PCI ROM\n");  in pci_get_rom_size()
136 void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size)  in pci_map_rom()  argument
138 	struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];  in pci_map_rom()
143 	if (res->parent == NULL && pci_assign_resource(pdev, PCI_ROM_RESOURCE))  in pci_map_rom()
146 	start = pci_resource_start(pdev, PCI_ROM_RESOURCE);  in pci_map_rom()
147 	*size = pci_resource_len(pdev, PCI_ROM_RESOURCE);  in pci_map_rom()
152 	if (pci_enable_rom(pdev))  in pci_map_rom()
164 	*size = pci_get_rom_size(pdev, rom, *size);  in pci_map_rom()
175 		pci_disable_rom(pdev);  in pci_map_rom()
187 void pci_unmap_rom(struct pci_dev *pdev, void __iomem *rom)  in pci_unmap_rom()  argument
189 	struct resource *res = &pdev->resource[PCI_ROM_RESOURCE];  in pci_unmap_rom()
195 		pci_disable_rom(pdev);  in pci_unmap_rom()