memblock: Add memblock_overlaps_memory()
Add a new function, memblock_overlaps_memory(), to check if a
region overlaps with a memory bank. This will be used by
peripheral loader code to detect when kernel memory would be
overwritten.
Change-Id: I851f8f416a0f36e85c0e19536b5209f7d4bd431c
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
diff --git a/mm/memblock.c b/mm/memblock.c
index 483197e..cf32a68 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1615,6 +1615,13 @@
memblock.memory.regions[idx].size) >= end;
}
+int __init_memblock memblock_overlaps_memory(phys_addr_t base, phys_addr_t size)
+{
+ memblock_cap_size(base, &size);
+
+ return memblock_overlaps_region(&memblock.memory, base, size) >= 0;
+}
+
/**
* memblock_is_region_reserved - check if a region intersects reserved memory
* @base: base of region to check