1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (c) 2015 National Instruments
4  *
5  * (C) Copyright 2015
6  * Joe Hershberger <joe.hershberger@ni.com>
7  */
8 
9 #ifndef __MAPMEM_H
10 #define __MAPMEM_H
11 
12 /* Define a null map_sysmem() if the architecture doesn't use it */
13 # ifdef CONFIG_ARCH_MAP_SYSMEM
14 #include <asm/io.h>
15 # else
map_sysmem(phys_addr_t paddr,unsigned long len)16 static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
17 {
18 	return (void *)(uintptr_t)paddr;
19 }
20 
unmap_sysmem(const void * vaddr)21 static inline void unmap_sysmem(const void *vaddr)
22 {
23 }
24 
map_to_sysmem(const void * ptr)25 static inline phys_addr_t map_to_sysmem(const void *ptr)
26 {
27 	return (phys_addr_t)(uintptr_t)ptr;
28 }
29 # endif
30 
31 #endif /* __MAPMEM_H */
32