LXR linux/arch/m68k/include/asm/kmap.h

   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 */
  73