Johannes Berg | ca2e334 | 2021-03-05 13:19:52 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Copyright (C) 2021 Intel Corporation |
| 4 | * Author: johannes@sipsolutions.net |
| 5 | */ |
| 6 | #ifndef _LOGIC_IO_H |
| 7 | #define _LOGIC_IO_H |
| 8 | #include <linux/types.h> |
| 9 | |
| 10 | /* include this file into asm/io.h */ |
| 11 | |
| 12 | #ifdef CONFIG_INDIRECT_IOMEM |
| 13 | |
| 14 | #ifdef CONFIG_INDIRECT_IOMEM_FALLBACK |
| 15 | /* |
| 16 | * If you want emulated IO memory to fall back to 'normal' IO memory |
| 17 | * if a region wasn't registered as emulated, then you need to have |
| 18 | * all of the real_* functions implemented. |
| 19 | */ |
| 20 | #if !defined(real_ioremap) || !defined(real_iounmap) || \ |
| 21 | !defined(real_raw_readb) || !defined(real_raw_writeb) || \ |
| 22 | !defined(real_raw_readw) || !defined(real_raw_writew) || \ |
| 23 | !defined(real_raw_readl) || !defined(real_raw_writel) || \ |
| 24 | (defined(CONFIG_64BIT) && \ |
| 25 | (!defined(real_raw_readq) || !defined(real_raw_writeq))) || \ |
| 26 | !defined(real_memset_io) || \ |
| 27 | !defined(real_memcpy_fromio) || \ |
| 28 | !defined(real_memcpy_toio) |
| 29 | #error "Must provide fallbacks for real IO memory access" |
| 30 | #endif /* defined ... */ |
| 31 | #endif /* CONFIG_INDIRECT_IOMEM_FALLBACK */ |
| 32 | |
| 33 | #define ioremap ioremap |
| 34 | void __iomem *ioremap(phys_addr_t offset, size_t size); |
| 35 | |
| 36 | #define iounmap iounmap |
Al Viro | 5f174ec | 2021-09-20 21:32:49 +0000 | [diff] [blame] | 37 | void iounmap(void volatile __iomem *addr); |
Johannes Berg | ca2e334 | 2021-03-05 13:19:52 +0100 | [diff] [blame] | 38 | |
| 39 | #define __raw_readb __raw_readb |
| 40 | u8 __raw_readb(const volatile void __iomem *addr); |
| 41 | |
| 42 | #define __raw_readw __raw_readw |
| 43 | u16 __raw_readw(const volatile void __iomem *addr); |
| 44 | |
| 45 | #define __raw_readl __raw_readl |
| 46 | u32 __raw_readl(const volatile void __iomem *addr); |
| 47 | |
| 48 | #ifdef CONFIG_64BIT |
| 49 | #define __raw_readq __raw_readq |
| 50 | u64 __raw_readq(const volatile void __iomem *addr); |
| 51 | #endif /* CONFIG_64BIT */ |
| 52 | |
| 53 | #define __raw_writeb __raw_writeb |
| 54 | void __raw_writeb(u8 value, volatile void __iomem *addr); |
| 55 | |
| 56 | #define __raw_writew __raw_writew |
| 57 | void __raw_writew(u16 value, volatile void __iomem *addr); |
| 58 | |
| 59 | #define __raw_writel __raw_writel |
| 60 | void __raw_writel(u32 value, volatile void __iomem *addr); |
| 61 | |
| 62 | #ifdef CONFIG_64BIT |
| 63 | #define __raw_writeq __raw_writeq |
| 64 | void __raw_writeq(u64 value, volatile void __iomem *addr); |
| 65 | #endif /* CONFIG_64BIT */ |
| 66 | |
| 67 | #define memset_io memset_io |
| 68 | void memset_io(volatile void __iomem *addr, int value, size_t size); |
| 69 | |
| 70 | #define memcpy_fromio memcpy_fromio |
| 71 | void memcpy_fromio(void *buffer, const volatile void __iomem *addr, |
| 72 | size_t size); |
| 73 | |
| 74 | #define memcpy_toio memcpy_toio |
| 75 | void memcpy_toio(volatile void __iomem *addr, const void *buffer, size_t size); |
| 76 | |
| 77 | #endif /* CONFIG_INDIRECT_IOMEM */ |
| 78 | #endif /* _LOGIC_IO_H */ |