1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (c) 2015 National Instruments 4 * 5 * (C) Copyright 2015 6 * Joe Hershberger <joe.hershberger (at) 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 16 static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) 17 { 18 return (void *)(uintptr_t)paddr; 19 } 20 21 static inline void unmap_sysmem(const void *vaddr) 22 { 23 } 24 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
