Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[pandora-kernel.git] / arch / powerpc / kernel / dma.c

diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index 20a60d6..ccf129d 100644 (file)
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -7,6 +7,7 @@
 
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
+#include <linux/lmb.h>
 #include <asm/bug.h>
 #include <asm/abs_addr.h>
 
@@ -90,11 +91,10 @@ static void dma_direct_unmap_sg(struct device *dev, struct scatterlist *sg,
 static int dma_direct_dma_supported(struct device *dev, u64 mask)
 {
 #ifdef CONFIG_PPC64
-       /* Could be improved to check for memory though it better be
-        * done via some global so platforms can set the limit in case
+       /* Could be improved so platforms can set the limit in case
         * they have limited DMA windows
         */
-       return mask >= DMA_BIT_MASK(32);
+       return mask >= (lmb_end_of_DRAM() - 1);
 #else
        return 1;
 #endif