- Change contigmalloc() to use the vm_paddr_t type instead of an unsigned

  long for specifying a boundary constraint.
- Change bus_dma tags to use bus_addr_t instead of bus_size_t for boundary
  constraints.

These allow boundary constraints to be fully expressed for cases where
sizeof(bus_addr_t) != sizeof(bus_size_t).  Specifically, it allows a
driver to properly specify a 4GB boundary in a PAE kernel.

Note that this cannot be safely MFC'd without a lot of compat shims due
to KBI changes, so I do not intend to merge it.

Reviewed by:	scottl

1 files changed, 1 insertions, 1 deletions

diff --git a/sys/sparc64/include/bus_dma.h b/sys/sparc64/include/bus_dma.h
index 9e069df9874e..5f981a7c1abf 100644
--- a/sys/sparc64/include/bus_dma.h
+++ b/sys/sparc64/include/bus_dma.h
@@ -103,7 +103,7 @@ struct bus_dma_tag {
 	void		*dt_cookie;		/* cookie used in the guts */
 	bus_dma_tag_t	dt_parent;
 	bus_size_t	dt_alignment;
-	bus_size_t	dt_boundary;
+	bus_addr_t	dt_boundary;
 	bus_addr_t	dt_lowaddr;
 	bus_addr_t	dt_highaddr;
 	bus_dma_filter_t	*dt_filter;