1 /* 2 * S390 version 3 * Copyright IBM Corp. 1999 4 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) 5 * 6 * Derived from "include/asm-i386/io.h" 7 */ 8 9 #ifndef _S390_IO_H 10 #define _S390_IO_H 11 12 #include <linux/kernel.h> 13 #include <asm/page.h> 14 #include <asm/pci_io.h> 15 16 void *xlate_dev_mem_ptr(unsigned long phys); 17 #define xlate_dev_mem_ptr xlate_dev_mem_ptr 18 void unxlate_dev_mem_ptr(unsigned long phys, void *addr); 19 20 /* 21 * Convert a virtual cached pointer to an uncached pointer 22 */ 23 #define xlate_dev_kmem_ptr(p) p 24 25 #define IO_SPACE_LIMIT 0 26 27 #ifdef CONFIG_PCI 28 29 #define ioremap_nocache(addr, size) ioremap(addr, size) 30 #define ioremap_wc ioremap_nocache 31 32 static inline void __iomem *ioremap(unsigned long offset, unsigned long size) 33 { 34 return (void __iomem *) offset; 35 } 36 37 static inline void iounmap(volatile void __iomem *addr) 38 { 39 } 40 41 /* 42 * s390 needs a private implementation of pci_iomap since ioremap with its 43 * offset parameter isn't sufficient. That's because BAR spaces are not 44 * disjunctive on s390 so we need the bar parameter of pci_iomap to find 45 * the corresponding device and create the mapping cookie. 46 */ 47 #define pci_iomap pci_iomap 48 #define pci_iounmap pci_iounmap 49 50 #define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count) 51 #define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count) 52 #define memset_io(dst, val, count) zpci_memset_io(dst, val, count) 53 54 #define __raw_readb zpci_read_u8 55 #define __raw_readw zpci_read_u16 56 #define __raw_readl zpci_read_u32 57 #define __raw_readq zpci_read_u64 58 #define __raw_writeb zpci_write_u8 59 #define __raw_writew zpci_write_u16 60 #define __raw_writel zpci_write_u32 61 #define __raw_writeq zpci_write_u64 62 63 #define readb_relaxed readb 64 #define readw_relaxed readw 65 #define readl_relaxed readl 66 #define readq_relaxed readq 67 68 #endif /* CONFIG_PCI */ 69 70 #include <asm-generic/io.h> 71 72 #endif 73