1189647Sdelphij/* SPDX-License-Identifier: GPL-2.0 */ 2129203Scognet/* 3129203Scognet * S390 version 4129203Scognet * Copyright IBM Corp. 1999 5129203Scognet * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) 6129203Scognet * 7129203Scognet * Derived from "include/asm-i386/io.h" 8129203Scognet */ 9129203Scognet 10129203Scognet#ifndef _S390_IO_H 11129203Scognet#define _S390_IO_H 12129203Scognet 13129203Scognet#include <linux/kernel.h> 14129203Scognet#include <asm/page.h> 15129203Scognet#include <asm/pgtable.h> 16129203Scognet#include <asm/pci_io.h> 17129203Scognet 18129203Scognet#define xlate_dev_mem_ptr xlate_dev_mem_ptr 19129203Scognetvoid *xlate_dev_mem_ptr(phys_addr_t phys); 20129203Scognet#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr 21129203Scognetvoid unxlate_dev_mem_ptr(phys_addr_t phys, void *addr); 22129203Scognet 23129203Scognet#define IO_SPACE_LIMIT 0 24129203Scognet 25129203Scognet/* 26129203Scognet * I/O memory mapping functions. 27129203Scognet */ 28129203Scognet#define ioremap_prot ioremap_prot 29129203Scognet#define iounmap iounmap 30129203Scognet 31129203Scognet#define _PAGE_IOREMAP pgprot_val(PAGE_KERNEL) 32129203Scognet 33129203Scognet#define ioremap_wc(addr, size) \ 34129203Scognet ioremap_prot((addr), (size), pgprot_val(pgprot_writecombine(PAGE_KERNEL))) 35129203Scognet#define ioremap_wt(addr, size) \ 36129203Scognet ioremap_prot((addr), (size), pgprot_val(pgprot_writethrough(PAGE_KERNEL))) 37129203Scognet 38129203Scognetstatic inline void __iomem *ioport_map(unsigned long port, unsigned int nr) 39129203Scognet{ 40129203Scognet return NULL; 41129203Scognet} 42129203Scognet 43129203Scognetstatic inline void ioport_unmap(void __iomem *p) 44129203Scognet{ 45129203Scognet} 46129203Scognet 47129203Scognet#ifdef CONFIG_PCI 48129203Scognet 49129203Scognet/* 50129203Scognet * s390 needs a private implementation of pci_iomap since ioremap with its 51129203Scognet * offset parameter isn't sufficient. That's because BAR spaces are not 52129203Scognet * disjunctive on s390 so we need the bar parameter of pci_iomap to find 53129203Scognet * the corresponding device and create the mapping cookie. 54 */ 55#define pci_iomap pci_iomap 56#define pci_iomap_range pci_iomap_range 57#define pci_iounmap pci_iounmap 58#define pci_iomap_wc pci_iomap_wc 59#define pci_iomap_wc_range pci_iomap_wc_range 60 61#define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count) 62#define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count) 63#define memset_io(dst, val, count) zpci_memset_io(dst, val, count) 64 65#define mmiowb() zpci_barrier() 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