Viewing file:  kmap.h (1.71 KB) -rw-r--r--
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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _KMAP_H
#define _KMAP_H
#ifdef CONFIG_MMU
#define ARCH_HAS_IOREMAP_WT
/* Values for nocacheflag and cmode */
#define IOMAP_FULL_CACHING 0
#define IOMAP_NOCACHE_SER 1
#define IOMAP_NOCACHE_NONSER 2
#define IOMAP_WRITETHROUGH 3
/*
* These functions exported by arch/m68k/mm/kmap.c.
* Only needed on MMU enabled systems.
*/
extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size,
int cacheflag);
#define iounmap iounmap
extern void iounmap(void __iomem *addr);
#define ioremap ioremap
static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
{
return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
}
#define ioremap_uc ioremap
#define ioremap_wt ioremap_wt
static inline void __iomem *ioremap_wt(unsigned long physaddr,
unsigned long size)
{
return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
}
#define memset_io memset_io
static inline void memset_io(volatile void __iomem *addr, unsigned char val,
int count)
{
__builtin_memset((void __force *) addr, val, count);
}
#define memcpy_fromio memcpy_fromio
static inline void memcpy_fromio(void *dst, const volatile void __iomem *src,
int count)
{
__builtin_memcpy(dst, (void __force *) src, count);
}
#define memcpy_toio memcpy_toio
static inline void memcpy_toio(volatile void __iomem *dst, const void *src,
int count)
{
__builtin_memcpy((void __force *) dst, src, count);
}
#endif /* CONFIG_MMU */
#define ioport_map ioport_map
static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
return (void __iomem *) port;
}
#define ioport_unmap ioport_unmap
static inline void ioport_unmap(void __iomem *p)
{
}
#endif /* _KMAP_H */
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