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authorBecky Bruce <beckyb@kernel.crashing.org>2009-05-14 12:42:27 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-05-21 15:44:25 +1000
commit2138422bbab91c3e924c9836e394f4925b456b79 (patch)
tree7660b32ce97634fa82544df46d588c0786258623
parent45db9240890d9343c934db1fe82d6e68ac2d28da (diff)
powerpc: Use sg->dma_length in sg_dma_len() macro on 32-bit
Currently, the 32-bit code uses sg->length instead of sg->dma_lentgh to report sg_dma_len. However, since the default dma code for 32-bit (the dma_direct case) sets dma_length and length to the same thing, we should be able to use dma_length there as well. This gets rid of some 32-vs-64-bit ifdefs, and is needed by the swiotlb code which actually distinguishes between dma_length and length. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-rw-r--r--arch/powerpc/include/asm/scatterlist.h6
1 files changed, 1 insertions, 5 deletions
diff --git a/arch/powerpc/include/asm/scatterlist.h b/arch/powerpc/include/asm/scatterlist.h
index fcf7d55afe4..912bf597870 100644
--- a/arch/powerpc/include/asm/scatterlist.h
+++ b/arch/powerpc/include/asm/scatterlist.h
@@ -21,7 +21,7 @@ struct scatterlist {
unsigned int offset;
unsigned int length;
- /* For TCE support */
+ /* For TCE or SWIOTLB support */
dma_addr_t dma_address;
u32 dma_length;
};
@@ -34,11 +34,7 @@ struct scatterlist {
* is 0.
*/
#define sg_dma_address(sg) ((sg)->dma_address)
-#ifdef __powerpc64__
#define sg_dma_len(sg) ((sg)->dma_length)
-#else
-#define sg_dma_len(sg) ((sg)->length)
-#endif
#ifdef __powerpc64__
#define ISA_DMA_THRESHOLD (~0UL)