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 19void *xlate_dev_mem_ptr(phys_addr_t phys); 20#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr 21void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr); 22 23/* 24 * Convert a virtual cached pointer to an uncached pointer 25 */ 26#define xlate_dev_kmem_ptr(p) p 27 28#define IO_SPACE_LIMIT 0 29 30void __iomem *ioremap_prot(phys_addr_t addr, size_t size, unsigned long prot); 31void __iomem *ioremap(phys_addr_t addr, size_t size); 32void __iomem *ioremap_wc(phys_addr_t addr, size_t size); 33void __iomem *ioremap_wt(phys_addr_t addr, size_t size); 34void iounmap(volatile void __iomem *addr); 35 36static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) 37{ 38 return NULL; 39} 40 41static inline void ioport_unmap(void __iomem *p) 42{ 43} 44 45#ifdef CONFIG_PCI 46 47/* 48 * s390 needs a private implementation of pci_iomap since ioremap with its 49 * offset parameter isn't sufficient. That's because BAR spaces are not 50 * disjunctive on s390 so we need the bar parameter of pci_iomap to find 51 * the corresponding device and create the mapping cookie. 52 */ 53#define pci_iomap pci_iomap 54#define pci_iomap_range pci_iomap_range 55#define pci_iounmap pci_iounmap 56#define pci_iomap_wc pci_iomap_wc 57#define pci_iomap_wc_range pci_iomap_wc_range 58 59#define ioremap ioremap 60#define ioremap_wt ioremap_wt 61#define ioremap_wc ioremap_wc 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 mmiowb() zpci_barrier() 68 69#define __raw_readb zpci_read_u8 70#define __raw_readw zpci_read_u16 71#define __raw_readl zpci_read_u32 72#define __raw_readq zpci_read_u64 73#define __raw_writeb zpci_write_u8 74#define __raw_writew zpci_write_u16 75#define __raw_writel zpci_write_u32 76#define __raw_writeq zpci_write_u64 77 78#endif /* CONFIG_PCI */ 79 80#include <asm-generic/io.h> 81 82#endif 83