| // SPDX-License-Identifier: GPL-2.0-only |
| bool ioremap_allowed(phys_addr_t phys_addr, size_t size, unsigned long prot) |
| unsigned long last_addr = phys_addr + size - 1; |
| /* Don't allow outside PHYS_MASK */ |
| if (last_addr & ~PHYS_MASK) |
| /* Don't allow RAM to be mapped. */ |
| if (WARN_ON(pfn_is_map_memory(__phys_to_pfn(phys_addr)))) |
| * Must be called after early_fixmap_init |
| void __init early_ioremap_init(void) |
| bool arch_memremap_can_ram_remap(resource_size_t offset, size_t size, |
| unsigned long pfn = PHYS_PFN(offset); |
| return pfn_is_map_memory(pfn); |