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