From fa39dc437a41733adaba241fd9036760283a516a Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Wed, 26 Oct 2005 21:54:21 +1000
Subject: [PATCH] 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>
---
arch/powerpc/mm/init_32.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index aa6a5440cec..8dd1f7d0e23 100644
--- 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 */
}
--
2.41.3