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>

parent 8e0ee43b

arch/m68knommu/mm/init.c

+1 −5

Original line number	Diff line number	Diff line
		@@ -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);
		}
		}