| /* |
| * ppc64 "iomap" interface implementation. |
| * |
| * (C) Copyright 2004 Linus Torvalds |
| */ |
| #include <linux/init.h> |
| #include <linux/pci.h> |
| #include <linux/mm.h> |
| #include <linux/export.h> |
| #include <asm/io.h> |
| #include <asm/pci-bridge.h> |
| |
| void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) |
| { |
| resource_size_t start = pci_resource_start(dev, bar); |
| resource_size_t len = pci_resource_len(dev, bar); |
| unsigned long flags = pci_resource_flags(dev, bar); |
| |
| if (!len) |
| return NULL; |
| if (max && len > max) |
| len = max; |
| if (flags & IORESOURCE_IO) |
| return ioport_map(start, len); |
| if (flags & IORESOURCE_MEM) |
| return ioremap(start, len); |
| /* What? */ |
| return NULL; |
| } |
| EXPORT_SYMBOL(pci_iomap); |
| |
| void pci_iounmap(struct pci_dev *dev, void __iomem *addr) |
| { |
| if (isa_vaddr_is_ioport(addr)) |
| return; |
| if (pcibios_vaddr_is_ioport(addr)) |
| return; |
| iounmap(addr); |
| } |
| EXPORT_SYMBOL(pci_iounmap); |
