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