Add new bus method 'GET_RESOURCE_LIST' and appropriate generic

implementation.

Add bus_generic_rl_{get,set,delete,release,alloc}_resource() functions
which provide generic operations for devices using resource list style
resource management.

This should simplify a number of bus drivers.  Further commits to follow.

1 files changed, 9 insertions, 0 deletions

diff --git a/sys/kern/bus_if.m b/sys/kern/bus_if.m
index 48d4dc8..e1b808f 100644
--- a/sys/kern/bus_if.m
+++ b/sys/kern/bus_if.m
@@ -236,3 +236,12 @@ METHOD void delete_resource {
 	int		type;
 	int		rid;
 };
+
+#
+# Return a struct resource_list.
+#
+METHOD int get_resource_list {
+	device_t	dev;
+	device_t	child;
+	struct resource_list *rl;
+} DEFAULT bus_generic_get_resource_list;