mapmem.h 622 Bytes
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/*
 * Copyright (c) 2015 National Instruments
 *
 * (C) Copyright 2015
 * Joe Hershberger <joe.hershberger@ni.com>
 *
 * SPDX-License-Identifier:    GPL-2.0
 */

#ifndef __MAPMEM_H
#define __MAPMEM_H

/* Define a null map_sysmem() if the architecture doesn't use it */
# ifdef CONFIG_ARCH_MAP_SYSMEM
#include <asm/io.h>
# else
static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
{
	return (void *)(uintptr_t)paddr;
}

static inline void unmap_sysmem(const void *vaddr)
{
}

static inline phys_addr_t map_to_sysmem(const void *ptr)
{
	return (phys_addr_t)(uintptr_t)ptr;
}
# endif

#endif /* __MAPMEM_H */