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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Copyright (C) 2021 Intel Corporation4 * Author: johannes@sipsolutions.net5 */6#ifndef _LOGIC_IO_H7#define _LOGIC_IO_H8#include <linux/types.h>9 10/* include this file into asm/io.h */11 12#ifdef CONFIG_INDIRECT_IOMEM13 14#ifdef CONFIG_INDIRECT_IOMEM_FALLBACK15/*16 * If you want emulated IO memory to fall back to 'normal' IO memory17 * if a region wasn't registered as emulated, then you need to have18 * 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 ioremap34void __iomem *ioremap(phys_addr_t offset, size_t size);35 36#define iounmap iounmap37void iounmap(void volatile __iomem *addr);38 39#define __raw_readb __raw_readb40u8 __raw_readb(const volatile void __iomem *addr);41 42#define __raw_readw __raw_readw43u16 __raw_readw(const volatile void __iomem *addr);44 45#define __raw_readl __raw_readl46u32 __raw_readl(const volatile void __iomem *addr);47 48#ifdef CONFIG_64BIT49#define __raw_readq __raw_readq50u64 __raw_readq(const volatile void __iomem *addr);51#endif /* CONFIG_64BIT */52 53#define __raw_writeb __raw_writeb54void __raw_writeb(u8 value, volatile void __iomem *addr);55 56#define __raw_writew __raw_writew57void __raw_writew(u16 value, volatile void __iomem *addr);58 59#define __raw_writel __raw_writel60void __raw_writel(u32 value, volatile void __iomem *addr);61 62#ifdef CONFIG_64BIT63#define __raw_writeq __raw_writeq64void __raw_writeq(u64 value, volatile void __iomem *addr);65#endif /* CONFIG_64BIT */66 67#define memset_io memset_io68void memset_io(volatile void __iomem *addr, int value, size_t size);69 70#define memcpy_fromio memcpy_fromio71void memcpy_fromio(void *buffer, const volatile void __iomem *addr,72 size_t size);73 74#define memcpy_toio memcpy_toio75void memcpy_toio(volatile void __iomem *addr, const void *buffer, size_t size);76 77#endif /* CONFIG_INDIRECT_IOMEM */78#endif /* _LOGIC_IO_H */79