root/arch/m68k/include/asm/kmap.h

INCLUDED FROM

DEFINITIONS

1. ioremap
2. ioremap_wt
3. memset_io
4. memcpy_fromio
5. memcpy_toio
6. ioport_map
7. ioport_unmap

   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  */
  19 extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size,
  20                                int cacheflag);
  21 #define iounmap iounmap
  22 extern void iounmap(void __iomem *addr);
  23 extern void __iounmap(void *addr, unsigned long size);
  24 
  25 #define ioremap ioremap
  26 static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
  27 {
  28         return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
  29 }
  30 
  31 #define ioremap_nocache ioremap
  32 #define ioremap_uc ioremap
  33 #define ioremap_wt ioremap_wt
  34 static inline void __iomem *ioremap_wt(unsigned long physaddr,
  35                                        unsigned long size)
  36 {
  37         return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
  38 }
  39 
  40 #define memset_io memset_io
  41 static inline void memset_io(volatile void __iomem *addr, unsigned char val,
  42                              int count)
  43 {
  44         __builtin_memset((void __force *) addr, val, count);
  45 }
  46 
  47 #define memcpy_fromio memcpy_fromio
  48 static inline void memcpy_fromio(void *dst, const volatile void __iomem *src,
  49                                  int count)
  50 {
  51         __builtin_memcpy(dst, (void __force *) src, count);
  52 }
  53 
  54 #define memcpy_toio memcpy_toio
  55 static inline void memcpy_toio(volatile void __iomem *dst, const void *src,
  56                                int count)
  57 {
  58         __builtin_memcpy((void __force *) dst, src, count);
  59 }
  60 
  61 #endif /* CONFIG_MMU */
  62 
  63 #define ioport_map ioport_map
  64 static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
  65 {
  66         return (void __iomem *) port;
  67 }
  68 
  69 #define ioport_unmap ioport_unmap
  70 static inline void ioport_unmap(void __iomem *p)
  71 {
  72 }
  73 
  74 #endif /* _KMAP_H */