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 16static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) 17{ 18 return (void *)(uintptr_t)paddr; 19} 20 21static inline void unmap_sysmem(const void *vaddr) 22{ 23} 24 25static 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