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m68knommu: mark all RAM as ZONE_DMA

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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>
This commit is contained in:
Greg Ungerer 2009-01-28 17:07:19 +10:00
parent 8e0ee43bc2
commit dffc9efc56
1 changed files with 1 additions and 5 deletions
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6
arch/m68knommu/mm/init.c
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@ -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);
}
}