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 #define xlate_dev_mem_ptr xlate_dev_mem_ptr 17 void *xlate_dev_mem_ptr(phys_addr_t phys); 18 #define unxlate_dev_mem_ptr unxlate_dev_mem_ptr 19 void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr); 20 21 /* 22 * Convert a virtual cached pointer to an uncached pointer 23 */ 24 #define xlate_dev_kmem_ptr(p) p 25 26 #define IO_SPACE_LIMIT 0 27 28 #ifdef CONFIG_PCI 29 30 #define ioremap_nocache(addr, size) ioremap(addr, size) 31 #define ioremap_wc ioremap_nocache 32 33 static inline void __iomem *ioremap(unsigned long offset, unsigned long size) 34 { 35 return (void __iomem *) offset; 36 } 37 38 static inline void iounmap(volatile void __iomem *addr) 39 { 40 } 41 42 static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) 43 { 44 return NULL; 45 } 46 47 static inline void ioport_unmap(void __iomem *p) 48 { 49 } 50 51 /* 52 * s390 needs a private implementation of pci_iomap since ioremap with its 53 * offset parameter isn't sufficient. That's because BAR spaces are not 54 * disjunctive on s390 so we need the bar parameter of pci_iomap to find 55 * the corresponding device and create the mapping cookie. 56 */ 57 #define pci_iomap pci_iomap 58 #define pci_iounmap pci_iounmap 59 60 #define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count) 61 #define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count) 62 #define memset_io(dst, val, count) zpci_memset_io(dst, val, count) 63 64 #define __raw_readb zpci_read_u8 65 #define __raw_readw zpci_read_u16 66 #define __raw_readl zpci_read_u32 67 #define __raw_readq zpci_read_u64 68 #define __raw_writeb zpci_write_u8 69 #define __raw_writew zpci_write_u16 70 #define __raw_writel zpci_write_u32 71 #define __raw_writeq zpci_write_u64 72 73 #endif /* CONFIG_PCI */ 74 75 #include <asm-generic/io.h> 76 77 #endif 78