From: Scott Wood Date: Thu, 27 Jan 2011 10:30:44 +0000 (+0000) Subject: powerpc: Fix memory limits when starting at a non-zero address X-Git-Tag: v2.6.39-rc1~430^2~49 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6dd227002972be910c6191f38f8641e01796557f;p=platform%2Fupstream%2Fkernel-adaptation-pc.git 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 Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 7185f0d..05b7139 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 742da43..d65b591 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 */ }