From: Greg Ungerer <gerg@uclinux.org>
Date: Wed, 28 Jan 2009 07:07:19 +0000 (+1000)
Subject: m68knommu: mark all RAM as ZONE_DMA
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=dffc9efc562b8a2180e86df9f733cb113ba94b33;p=deliverable%2Flinux.git

m68knommu: mark all RAM as ZONE_DMA

There is no reason not to put all RAM in ZONE_DMA for these simple
m68k varients (same as the standard MMU m68k code does). With this
in place the usual dma_alloc_coherent() work as expected.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---

diff --git a/arch/m68knommu/mm/init.c b/arch/m68knommu/mm/init.c
index 3bf249c53e41..7befc0c357e0 100644
--- a/arch/m68knommu/mm/init.c
+++ b/arch/m68knommu/mm/init.c
@@ -111,11 +111,7 @@ void __init paging_init(void)
 	{
 		unsigned long zones_size[MAX_NR_ZONES] = {0, };
 
-		zones_size[ZONE_DMA] = 0 >> PAGE_SHIFT;
-		zones_size[ZONE_NORMAL] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
-#ifdef CONFIG_HIGHMEM
-		zones_size[ZONE_HIGHMEM] = 0;
-#endif
+		zones_size[ZONE_DMA] = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
 		free_area_init(zones_size);
 	}
 }