projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 1da177e4 | 2 | /* |
| 1da177e4 | 3 | * S390 version |
| a53c8fab | 4 | * Copyright IBM Corp. 1999 |
| 1da177e4 LT |
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 | ||
| cd248341 | 13 | #include <linux/kernel.h> |
| 1da177e4 | 14 | #include <asm/page.h> |
| b02002cc | 15 | #include <asm/pgtable.h> |
| cd248341 | 16 | #include <asm/pci_io.h> |
| 1da177e4 | 17 | |
| 576ebd74 | 18 | #define xlate_dev_mem_ptr xlate_dev_mem_ptr |
| 4707a341 TR |
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); | |
| 1da177e4 | 22 | |
| cd248341 JG |
23 | #define IO_SPACE_LIMIT 0 |
| 24 | ||
| b43b3fff BH |
25 | /* |
| 26 | * I/O memory mapping functions. | |
| 27 | */ | |
| 28 | #define ioremap_prot ioremap_prot | |
| 29 | #define iounmap iounmap | |
| 30 | ||
| 31 | #define _PAGE_IOREMAP pgprot_val(PAGE_KERNEL) | |
| 32 | ||
| 33 | #define ioremap_wc(addr, size) \ | |
| 34 | ioremap_prot((addr), (size), pgprot_val(pgprot_writecombine(PAGE_KERNEL))) | |
| 35 | #define ioremap_wt(addr, size) \ | |
| 36 | ioremap_prot((addr), (size), pgprot_val(pgprot_writethrough(PAGE_KERNEL))) | |
| cd248341 | 37 | |
| 99e97b71 FB |
38 | static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) |
| 39 | { | |
| 40 | return NULL; | |
| 41 | } | |
| 42 | ||
| 43 | static inline void ioport_unmap(void __iomem *p) | |
| 44 | { | |
| 45 | } | |
| 46 | ||
| 7e9710af LG |
47 | #ifdef CONFIG_PCI |
| 48 | ||
| cd248341 JG |
49 | /* |
| 50 | * s390 needs a private implementation of pci_iomap since ioremap with its | |
| 51 | * offset parameter isn't sufficient. That's because BAR spaces are not | |
| 52 | * disjunctive on s390 so we need the bar parameter of pci_iomap to find | |
| 53 | * the corresponding device and create the mapping cookie. | |
| 54 | */ | |
| 55 | #define pci_iomap pci_iomap | |
| 71ba41c9 | 56 | #define pci_iomap_range pci_iomap_range |
| cd248341 | 57 | #define pci_iounmap pci_iounmap |
| 71ba41c9 SO |
58 | #define pci_iomap_wc pci_iomap_wc |
| 59 | #define pci_iomap_wc_range pci_iomap_wc_range | |
| cd248341 JG |
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 | ||
| 71ba41c9 SO |
65 | #define mmiowb() zpci_barrier() |
| 66 | ||
| cd248341 JG |
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 | ||
| 6ae798cb JG |
76 | /* combine single writes by using store-block insn */ |
| 77 | static inline void __iowrite32_copy(void __iomem *to, const void *from, | |
| 78 | size_t count) | |
| 79 | { | |
| 80 | zpci_memcpy_toio(to, from, count * 4); | |
| 81 | } | |
| 82 | #define __iowrite32_copy __iowrite32_copy | |
| 83 | ||
| e7bc47b1 JG |
84 | static inline void __iowrite64_copy(void __iomem *to, const void *from, |
| 85 | size_t count) | |
| 86 | { | |
| 87 | zpci_memcpy_toio(to, from, count * 8); | |
| 88 | } | |
| 89 | #define __iowrite64_copy __iowrite64_copy | |
| 90 | ||
| cd248341 JG |
91 | #endif /* CONFIG_PCI */ |
| 92 | ||
| 93 | #include <asm-generic/io.h> | |
| 94 | ||
| 1da177e4 | 95 | #endif |