1 // SPDX-License-Identifier: GPL-2.0-only
6 void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size,
9 unsigned long last_addr = phys_addr + size - 1;
11 /* Don't allow outside PHYS_MASK */
12 if (last_addr & ~PHYS_MASK)
15 /* Don't allow RAM to be mapped. */
16 if (WARN_ON(pfn_is_map_memory(__phys_to_pfn(phys_addr))))
19 return generic_ioremap_prot(phys_addr, size, __pgprot(prot));
21 EXPORT_SYMBOL(ioremap_prot);
24 * Must be called after early_fixmap_init
26 void __init early_ioremap_init(void)
28 early_ioremap_setup();
31 bool arch_memremap_can_ram_remap(resource_size_t offset, size_t size,
34 unsigned long pfn = PHYS_PFN(offset);
36 return pfn_is_map_memory(pfn);