1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * S390 version 4 * Copyright IBM Corp. 1999 5 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) 6 * 7 * Derived from "include/asm-i386/io.h" 8 */ 9 10 #ifndef _S390_IO_H 11 #define _S390_IO_H 12 13 #include <linux/kernel.h> 14 #include <asm/page.h> 15 #include <asm/pgtable.h> 16 #include <asm/pci_io.h> 17 18 #define xlate_dev_mem_ptr xlate_dev_mem_ptr 19 void *xlate_dev_mem_ptr(phys_addr_t phys); 20 #define unxlate_dev_mem_ptr unxlate_dev_mem_ptr 21 void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr); 22 23 #define IO_SPACE_LIMIT 0 24 25 void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot); 26 void __iomem *ioremap(phys_addr_t addr, size_t size); 27 void __iomem *ioremap_wc(phys_addr_t addr, size_t size); 28 void __iomem *ioremap_wt(phys_addr_t addr, size_t size); 29 void iounmap(volatile void __iomem *addr); 30 31 static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) 32 { 33 return NULL; 34 } 35 36 static inline void ioport_unmap(void __iomem *p) 37 { 38 } 39 40 #ifdef CONFIG_PCI 41 42 /* 43 * s390 needs a private implementation of pci_iomap since ioremap with its 44 * offset parameter isn't sufficient. That's because BAR spaces are not 45 * disjunctive on s390 so we need the bar parameter of pci_iomap to find 46 * the corresponding device and create the mapping cookie. 47 */ 48 #define pci_iomap pci_iomap 49 #define pci_iomap_range pci_iomap_range 50 #define pci_iounmap pci_iounmap 51 #define pci_iomap_wc pci_iomap_wc 52 #define pci_iomap_wc_range pci_iomap_wc_range 53 54 #define ioremap ioremap 55 #define ioremap_wt ioremap_wt 56 #define ioremap_wc ioremap_wc 57 58 #define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count) 59 #define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count) 60 #define memset_io(dst, val, count) zpci_memset_io(dst, val, count) 61 62 #define mmiowb() zpci_barrier() 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