Refine the busdma template interface. Provide tools for filling in fields

that can be extended, but also ensure compile-time type checking.  Refactor
common code out of arch-specific implementations.  Move the mpr and mps
drivers to this new API.  The template type remains visible to the consumer
so that it can be allocated on the stack, but should be considered opaque.

1 files changed, 1 insertions, 32 deletions

diff --git a/sys/arm/arm/busdma_machdep.c b/sys/arm/arm/busdma_machdep.c
index 25af44c17e6e..7d978ca0163d 100644
--- a/sys/arm/arm/busdma_machdep.c
+++ b/sys/arm/arm/busdma_machdep.c
@@ -577,38 +577,7 @@ bus_dma_tag_create(bus_dma_tag_t parent, bus_size_t alignment,
 }
 
 void
-bus_dma_template_init(bus_dma_tag_template_t *t, bus_dma_tag_t parent)
-{
-
-	if (t == NULL)
-		return;
-
-	t->parent = parent;
-	t->alignment = 1;
-	t->boundary = 0;
-	t->lowaddr = t->highaddr = BUS_SPACE_MAXADDR;
-	t->maxsize = t->maxsegsize = BUS_SPACE_MAXSIZE;
-	t->nsegments = BUS_SPACE_UNRESTRICTED;
-	t->lockfunc = NULL;
-	t->lockfuncarg = NULL;
-	t->flags = 0;
-}
-
-int
-bus_dma_template_tag(bus_dma_tag_template_t *t, bus_dma_tag_t *dmat)
-{
-
-	if (t == NULL || dmat == NULL)
-		return (EINVAL);
-
-	return (bus_dma_tag_create(t->parent, t->alignment, t->boundary,
-	    t->lowaddr, t->highaddr, NULL, NULL, t->maxsize,
-	    t->nsegments, t->maxsegsize, t->flags, t->lockfunc, t->lockfuncarg,
-	    dmat));
-}
-
-void
-bus_dma_template_clone(bus_dma_tag_template_t *t, bus_dma_tag_t dmat)
+bus_dma_template_clone(bus_dma_template_t *t, bus_dma_tag_t dmat)
 {
 
 	if (t == NULL || dmat == NULL)