kmap.h (1754B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef _KMAP_H 3#define _KMAP_H 4 5#ifdef CONFIG_MMU 6 7#define ARCH_HAS_IOREMAP_WT 8 9/* Values for nocacheflag and cmode */ 10#define IOMAP_FULL_CACHING 0 11#define IOMAP_NOCACHE_SER 1 12#define IOMAP_NOCACHE_NONSER 2 13#define IOMAP_WRITETHROUGH 3 14 15/* 16 * These functions exported by arch/m68k/mm/kmap.c. 17 * Only needed on MMU enabled systems. 18 */ 19extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, 20 int cacheflag); 21#define iounmap iounmap 22extern void iounmap(void __iomem *addr); 23 24#define ioremap ioremap 25static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size) 26{ 27 return __ioremap(physaddr, size, IOMAP_NOCACHE_SER); 28} 29 30#define ioremap_uc ioremap 31#define ioremap_wt ioremap_wt 32static inline void __iomem *ioremap_wt(unsigned long physaddr, 33 unsigned long size) 34{ 35 return __ioremap(physaddr, size, IOMAP_WRITETHROUGH); 36} 37 38#define memset_io memset_io 39static inline void memset_io(volatile void __iomem *addr, unsigned char val, 40 int count) 41{ 42 __builtin_memset((void __force *) addr, val, count); 43} 44 45#define memcpy_fromio memcpy_fromio 46static inline void memcpy_fromio(void *dst, const volatile void __iomem *src, 47 int count) 48{ 49 __builtin_memcpy(dst, (void __force *) src, count); 50} 51 52#define memcpy_toio memcpy_toio 53static inline void memcpy_toio(volatile void __iomem *dst, const void *src, 54 int count) 55{ 56 __builtin_memcpy((void __force *) dst, src, count); 57} 58 59#endif /* CONFIG_MMU */ 60 61#define ioport_map ioport_map 62static inline void __iomem *ioport_map(unsigned long port, unsigned int nr) 63{ 64 return (void __iomem *) port; 65} 66 67#define ioport_unmap ioport_unmap 68static inline void ioport_unmap(void __iomem *p) 69{ 70} 71 72#endif /* _KMAP_H */