Documentation: move DMA-mapping.txt to Doc/PCI/

Move DMA-mapping.txt to Documentation/PCI/.

DMA-mapping.txt was supposed to be moved from Documentation/ to
Documentation/PCI/.  The 00-INDEX files in those two directories
were updated, along with a few other text files, but the file
itself somehow escaped being moved, so move it and update more
text files and source files with its new location.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
cc:	Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index d98f0f4..6d5e6c5 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -906,7 +906,7 @@
  * @dir:  R/W or both.
  * @attrs: optional dma attributes
  *
- * See Documentation/DMA-mapping.txt
+ * See Documentation/PCI/PCI-DMA-mapping.txt
  */
 dma_addr_t
 sba_map_single_attrs(struct device *dev, void *addr, size_t size, int dir,
@@ -1024,7 +1024,7 @@
  * @dir:  R/W or both.
  * @attrs: optional dma attributes
  *
- * See Documentation/DMA-mapping.txt
+ * See Documentation/PCI/PCI-DMA-mapping.txt
  */
 void sba_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size,
 			    int dir, struct dma_attrs *attrs)
@@ -1102,7 +1102,7 @@
  * @size:  number of bytes mapped in driver buffer.
  * @dma_handle:  IOVA of new buffer.
  *
- * See Documentation/DMA-mapping.txt
+ * See Documentation/PCI/PCI-DMA-mapping.txt
  */
 void *
 sba_alloc_coherent (struct device *dev, size_t size, dma_addr_t *dma_handle, gfp_t flags)
@@ -1165,7 +1165,7 @@
  * @vaddr:  virtual address IOVA of "consistent" buffer.
  * @dma_handler:  IO virtual address of "consistent" buffer.
  *
- * See Documentation/DMA-mapping.txt
+ * See Documentation/PCI/PCI-DMA-mapping.txt
  */
 void sba_free_coherent (struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle)
 {
@@ -1420,7 +1420,7 @@
  * @dir:  R/W or both.
  * @attrs: optional dma attributes
  *
- * See Documentation/DMA-mapping.txt
+ * See Documentation/PCI/PCI-DMA-mapping.txt
  */
 int sba_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents,
 		     int dir, struct dma_attrs *attrs)
@@ -1512,7 +1512,7 @@
  * @dir:  R/W or both.
  * @attrs: optional dma attributes
  *
- * See Documentation/DMA-mapping.txt
+ * See Documentation/PCI/PCI-DMA-mapping.txt
  */
 void sba_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist,
 			int nents, int dir, struct dma_attrs *attrs)