__mmap_region
ret = __mmap_region(file, addr, len, vma_flags, pgoff, uf);
addr = __mmap_region(NULL, 0x300000, 0x3000, vma_flags, 0x300, NULL);
addr = __mmap_region(NULL, 0x250000, 0x3000, vma_flags, 0x250, NULL);
addr = __mmap_region(NULL, 0x303000, 0x3000, vma_flags, 0x303, NULL);
addr = __mmap_region(NULL, 0x24d000, 0x3000, vma_flags, 0x24d, NULL);