3 * Copyright IBM Corp. 1999
4 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
6 * Derived from "include/asm-i386/io.h"
12 #include <linux/kernel.h>
14 #include <asm/pci_io.h>
17 * Change virtual addresses to physical addresses and vv.
18 * These are pretty trivial
20 static inline unsigned long virt_to_phys(volatile void * address)
22 unsigned long real_address;
28 : "=a" (real_address) : "a" (address) : "cc");
31 #define virt_to_phys virt_to_phys
33 static inline void * phys_to_virt(unsigned long address)
35 return (void *) address;
38 void *xlate_dev_mem_ptr(unsigned long phys);
39 void unxlate_dev_mem_ptr(unsigned long phys, void *addr);
42 * Convert a virtual cached pointer to an uncached pointer
44 #define xlate_dev_kmem_ptr(p) p
46 #define IO_SPACE_LIMIT 0
50 #define ioremap_nocache(addr, size) ioremap(addr, size)
51 #define ioremap_wc ioremap_nocache
53 static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
55 return (void __iomem *) offset;
58 static inline void iounmap(volatile void __iomem *addr)
63 * s390 needs a private implementation of pci_iomap since ioremap with its
64 * offset parameter isn't sufficient. That's because BAR spaces are not
65 * disjunctive on s390 so we need the bar parameter of pci_iomap to find
66 * the corresponding device and create the mapping cookie.
68 #define pci_iomap pci_iomap
69 #define pci_iounmap pci_iounmap
71 #define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count)
72 #define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count)
73 #define memset_io(dst, val, count) zpci_memset_io(dst, val, count)
75 #define __raw_readb zpci_read_u8
76 #define __raw_readw zpci_read_u16
77 #define __raw_readl zpci_read_u32
78 #define __raw_readq zpci_read_u64
79 #define __raw_writeb zpci_write_u8
80 #define __raw_writew zpci_write_u16
81 #define __raw_writel zpci_write_u32
82 #define __raw_writeq zpci_write_u64
84 #define readb_relaxed readb
85 #define readw_relaxed readw
86 #define readl_relaxed readl
87 #define readq_relaxed readq
89 #endif /* CONFIG_PCI */
91 #include <asm-generic/io.h>