diff options
Diffstat (limited to 'arch/arm64/mm/ioremap.c')
| -rw-r--r-- | arch/arm64/mm/ioremap.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm64/mm/ioremap.c b/arch/arm64/mm/ioremap.c index 9be71bee902c..8dac7fcfb4bd 100644 --- a/arch/arm64/mm/ioremap.c +++ b/arch/arm64/mm/ioremap.c @@ -13,6 +13,7 @@ #include <linux/mm.h> #include <linux/vmalloc.h> #include <linux/io.h> +#include <linux/memblock.h> #include <asm/fixmap.h> #include <asm/tlbflush.h> @@ -100,3 +101,11 @@ void __init early_ioremap_init(void) { early_ioremap_setup(); } + +bool arch_memremap_can_ram_remap(resource_size_t offset, size_t size, + unsigned long flags) +{ + unsigned long pfn = PHYS_PFN(offset); + + return memblock_is_map_memory(pfn); +} |