svn commit: r225625 - stable/8/sys/sys

[John Baldwin]

Author: jhb
Date: Fri Sep 16 18:26:40 2011
New Revision: 225625
URL: http://svn.freebsd.org/changeset/base/225625

Log:
  MFC 225079:
  Add two new macros DRIVER_MODULE_ORDERED() and EARLY_DRIVER_MODULE_ORDERED()
  that allow a module to use an order other than the default of
  SI_ORDER_MIDDLE when registering a driver.  This can be useful for drivers
  in a kld that contain multiple new-bus drivers as part of one logical device
  driver.  A typical case would be to use SI_ORDER_LAST for the "main" driver
  to ensure that any other "helper" drivers are registered and available
  before the "main" driver attempts to attach.

Modified:
  stable/8/sys/sys/bus.h
Directory Properties:
  stable/8/sys/   (props changed)
  stable/8/sys/amd64/include/xen/   (props changed)
  stable/8/sys/cddl/contrib/opensolaris/   (props changed)
  stable/8/sys/contrib/dev/acpica/   (props changed)
  stable/8/sys/contrib/pf/   (props changed)

Modified: stable/8/sys/sys/bus.h
==============================================================================
--- stable/8/sys/sys/bus.h	Fri Sep 16 18:23:39 2011	(r225624)
+++ stable/8/sys/sys/bus.h	Fri Sep 16 18:26:40 2011	(r225625)
@@ -575,7 +575,8 @@ struct driver_module_data {
 	int		dmd_pass;
 };
 
-#define	EARLY_DRIVER_MODULE(name, busname, driver, devclass, evh, arg, pass) \
+#define	EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass,	\
+    evh, arg, order, pass)						\
 									\
 static struct driver_module_data name##_##busname##_driver_mod = {	\
 	evh, arg,							\
@@ -591,7 +592,16 @@ static moduledata_t name##_##busname##_m
 	&name##_##busname##_driver_mod					\
 };									\
 DECLARE_MODULE(name##_##busname, name##_##busname##_mod,		\
-	       SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
+	       SI_SUB_DRIVERS, order)
+
+#define	EARLY_DRIVER_MODULE(name, busname, driver, devclass, evh, arg, pass) \
+	EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass,	\
+	    evh, arg, SI_ORDER_MIDDLE, pass)
+
+#define	DRIVER_MODULE_ORDERED(name, busname, driver, devclass, evh, arg,\
+    order)								\
+	EARLY_DRIVER_MODULE_ORDERED(name, busname, driver, devclass,	\
+	    evh, arg, order, BUS_PASS_DEFAULT)
 
 #define	DRIVER_MODULE(name, busname, driver, devclass, evh, arg)	\
 	EARLY_DRIVER_MODULE(name, busname, driver, devclass, evh, arg,	\