powerpc32: Limit memory to lowmem if !CONFIG_HIGHMEM.

This trims off the extra unusable memory from the lmb structure,
so we don't try to use it.

Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index aa6a5440cec1c3c4138e101750f6072a4d18837c..8dd1f7d0e23c672a8be8b40cf8ca32811c69011b 100644 (file)
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -154,10 +154,13 @@ void __init MMU_init(void)
         * in the fixed entries */
        adjust_total_lowmem();
 #endif /* CONFIG_FSL_BOOKE */
+
        if (total_lowmem > __max_low_memory) {
                total_lowmem = __max_low_memory;
 #ifndef CONFIG_HIGHMEM
                total_memory = total_lowmem;
+               lmb_enforce_memory_limit(total_lowmem);
+               lmb_analyze();
 #endif /* CONFIG_HIGHMEM */
        }