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 #define ioremap_nocache(addr, size) ioremap(addr, size) 29 #define ioremap_wc ioremap_nocache 30 #define ioremap_wt 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 static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) 42 { 43 return NULL; 44 } 45 46 static inline void ioport_unmap(void __iomem *p) 47 { 48 } 49 50 #ifdef CONFIG_PCI 51 52 /* 53 * s390 needs a private implementation of pci_iomap since ioremap with its 54 * offset parameter isn't sufficient. That's because BAR spaces are not 55 * disjunctive on s390 so we need the bar parameter of pci_iomap to find 56 * the corresponding device and create the mapping cookie. 57 */ 58 #define pci_iomap pci_iomap 59 #define pci_iounmap pci_iounmap 60 #define pci_iomap_wc pci_iomap 61 #define pci_iomap_wc_range pci_iomap_range 62 63 #define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count) 64 #define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count) 65 #define memset_io(dst, val, count) zpci_memset_io(dst, val, count) 66 67 #define __raw_readb zpci_read_u8 68 #define __raw_readw zpci_read_u16 69 #define __raw_readl zpci_read_u32 70 #define __raw_readq zpci_read_u64 71 #define __raw_writeb zpci_write_u8 72 #define __raw_writew zpci_write_u16 73 #define __raw_writel zpci_write_u32 74 #define __raw_writeq zpci_write_u64 75 76 #endif /* CONFIG_PCI */ 77 78 #include <asm-generic/io.h> 79 80 #endif 81