projects / J-u-boot.git / blame
| Commit | Line | Data |
|---|---|---|
| 83d290c5 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 0eb25b61 JH |
2 | /* |
| 3 | * Copyright (c) 2015 National Instruments | |
| 4 | * | |
| 5 | * (C) Copyright 2015 | |
| 6 | * Joe Hershberger <[email protected]> | |
| 0eb25b61 JH |
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 | |
| 1e8ce11a TR |
16 | #include <linux/types.h> |
| 17 | ||
| 0eb25b61 JH |
18 | static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) |
| 19 | { | |
| 20 | return (void *)(uintptr_t)paddr; | |
| 21 | } | |
| 22 | ||
| 23 | static inline void unmap_sysmem(const void *vaddr) | |
| 24 | { | |
| 25 | } | |
| 26 | ||
| 27 | static inline phys_addr_t map_to_sysmem(const void *ptr) | |
| 28 | { | |
| 29 | return (phys_addr_t)(uintptr_t)ptr; | |
| 30 | } | |
| a8efebe7 SG |
31 | |
| 32 | /** | |
| 33 | * nomap_sysmem() - pass through an address unchanged | |
| 34 | * | |
| 35 | * This is used to indicate an address which should NOT be mapped, e.g. in | |
| 36 | * SMBIOS tables. Using this function instead of a case shows that the sandbox | |
| 37 | * conversion has been done | |
| 38 | */ | |
| 39 | static inline void *nomap_sysmem(phys_addr_t paddr, unsigned long len) | |
| 40 | { | |
| 41 | return (void *)(uintptr_t)paddr; | |
| 42 | } | |
| 43 | ||
| 44 | static inline phys_addr_t nomap_to_sysmem(const void *ptr) | |
| 45 | { | |
| 46 | return (phys_addr_t)(uintptr_t)ptr; | |
| 47 | } | |
| 48 | ||
| 0eb25b61 JH |
49 | # endif |
| 50 | ||
| 51 | #endif /* __MAPMEM_H */ |