- 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/sys/bus_dma.h b/sys/sys/bus_dma.h
index 0dad326..915d065 100644
--- a/sys/sys/bus_dma.h
+++ b/sys/sys/bus_dma.h
@@ -169,7 +169,7 @@ void busdma_lock_mutex(void *arg, bus_dma_lock_op_t op);
  */
 /* XXX Should probably allow specification of alignment */
 int bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
-		       bus_size_t boundary, bus_addr_t lowaddr,
+		       bus_addr_t boundary, bus_addr_t lowaddr,
 		       bus_addr_t highaddr, bus_dma_filter_t *filtfunc,
 		       void *filtfuncarg, bus_size_t maxsize, int nsegments,
 		       bus_size_t maxsegsz, int flags, bus_dma_lock_t *lockfunc,