| 54 | static int fd_mem; |
| 55 | |
| 56 | void *map_physical(uint64_t phys_addr, size_t len) |
| 57 | { |
| 58 | void *virt_addr; |
| 59 | |
| 60 | virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED, |
| 61 | fd_mem, (off_t) phys_addr); |
| 62 | |
| 63 | if (virt_addr == MAP_FAILED) { |
| 64 | printf("Error mapping physical memory 0x%08" PRIx64 "[0x%zx]\n", |
| 65 | phys_addr, len); |
| 66 | return NULL; |
| 67 | } |
| 68 | |
| 69 | return virt_addr; |
| 70 | } |
| 71 | |
| 72 | void unmap_physical(void *virt_addr, size_t len) |
| 73 | { |
no test coverage detected