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authorScott Wood <scottwood@freescale.com>2011-01-27 10:30:44 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-03-02 16:56:15 +1100
commit6dd227002972be910c6191f38f8641e01796557f (patch)
tree2dbfe9ef7a95c0f95ea4938a9fa60d9e65c23165 /arch
parentc7704d352d45de47333f2d9f10aead820b49044c (diff)
powerpc: Fix memory limits when starting at a non-zero address
memblock_enforce_memory_limit() takes the desired maximum quantity of memory to end up with, not an address above which memory will not be used. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/powerpc/kernel/prom.c2
-rw-r--r--arch/powerpc/mm/init_32.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 7185f0da7dc3..05b7139d6a27 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -97,7 +97,7 @@ static void __init move_device_tree(void)
start = __pa(initial_boot_params);
size = be32_to_cpu(initial_boot_params->totalsize);
- if ((memory_limit && (start + size) > memory_limit) ||
+ if ((memory_limit && (start + size) > PHYSICAL_START + memory_limit) ||
overlaps_crashkernel(start, size)) {
p = __va(memblock_alloc(size, PAGE_SIZE));
memcpy(p, initial_boot_params, size);
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index 742da43b4ab6..d65b591e5556 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -148,7 +148,7 @@ void __init MMU_init(void)
lowmem_end_addr = memstart_addr + total_lowmem;
#ifndef CONFIG_HIGHMEM
total_memory = total_lowmem;
- memblock_enforce_memory_limit(lowmem_end_addr);
+ memblock_enforce_memory_limit(total_lowmem);
memblock_analyze();
#endif /* CONFIG_HIGHMEM */
}