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authorChristophe Leroy <christophe.leroy@c-s.fr>2018-12-17 14:18:27 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2018-12-20 22:21:20 +1100
commitf242e0ac95cadb27527d0b06c957723c9f63dd74 (patch)
tree3b791a74b5b30b721a92c95b8994a5ec4b201126 /arch
parentec2adcd8dd64588cb4bcd1c1e0b86304b9713e73 (diff)
downloadlinux-f242e0ac95cadb27527d0b06c957723c9f63dd74.tar.bz2
powerpc/prom: move the device tree if not in declared memory.
If the device tree doesn't reside in the memory which is declared inside it, it has to be moved as well as this memory will not be mapped by the kernel. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/prom.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 87a68e2dc531..4181ec715f88 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -124,8 +124,8 @@ static void __init move_device_tree(void)
size = fdt_totalsize(initial_boot_params);
if ((memory_limit && (start + size) > PHYSICAL_START + memory_limit) ||
- overlaps_crashkernel(start, size) ||
- overlaps_initrd(start, size)) {
+ !memblock_is_memory(start + size - 1) ||
+ overlaps_crashkernel(start, size) || overlaps_initrd(start, size)) {
p = __va(memblock_phys_alloc(size, PAGE_SIZE));
memcpy(p, initial_boot_params, size);
initial_boot_params = p;