1a6475c13SMichal Simek /* 2a6475c13SMichal Simek * ppc64 "iomap" interface implementation. 3a6475c13SMichal Simek * 4a6475c13SMichal Simek * (C) Copyright 2004 Linus Torvalds 5a6475c13SMichal Simek */ 6a6475c13SMichal Simek #include <linux/init.h> 7a6475c13SMichal Simek #include <linux/pci.h> 8a6475c13SMichal Simek #include <linux/mm.h> 9a6475c13SMichal Simek #include <asm/io.h> 10a6475c13SMichal Simek #include <asm/pci-bridge.h> 11a6475c13SMichal Simek 12a6475c13SMichal Simek void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max) 13a6475c13SMichal Simek { 14a6475c13SMichal Simek resource_size_t start = pci_resource_start(dev, bar); 15a6475c13SMichal Simek resource_size_t len = pci_resource_len(dev, bar); 16a6475c13SMichal Simek unsigned long flags = pci_resource_flags(dev, bar); 17a6475c13SMichal Simek 18a6475c13SMichal Simek if (!len) 19a6475c13SMichal Simek return NULL; 20a6475c13SMichal Simek if (max && len > max) 21a6475c13SMichal Simek len = max; 22a6475c13SMichal Simek if (flags & IORESOURCE_IO) 23a6475c13SMichal Simek return ioport_map(start, len); 24a6475c13SMichal Simek if (flags & IORESOURCE_MEM) 25a6475c13SMichal Simek return ioremap(start, len); 26a6475c13SMichal Simek /* What? */ 27a6475c13SMichal Simek return NULL; 28a6475c13SMichal Simek } 29a6475c13SMichal Simek EXPORT_SYMBOL(pci_iomap); 30a6475c13SMichal Simek 31a6475c13SMichal Simek void pci_iounmap(struct pci_dev *dev, void __iomem *addr) 32a6475c13SMichal Simek { 33a6475c13SMichal Simek if (isa_vaddr_is_ioport(addr)) 34a6475c13SMichal Simek return; 35a6475c13SMichal Simek if (pcibios_vaddr_is_ioport(addr)) 36a6475c13SMichal Simek return; 37a6475c13SMichal Simek iounmap(addr); 38a6475c13SMichal Simek } 39a6475c13SMichal Simek EXPORT_SYMBOL(pci_iounmap); 40