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