[AGPGART] PPC Uninorth support.

By Paul Mackerras and BenH

drivers/char/agp/Kconfig

@@ -131,3 +131,10 @@ config AGP_ALPHA_CORE
 	depends on AGP && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL)
 	default AGP
 
+config AGP_UNINORTH
+	tristate "Apple UniNorth AGP support"
+	depends on AGP && ALL_PPC
+	help
+	  This option gives you AGP support for Apple machines with a
+	  UniNorth bridge.
+

drivers/char/agp/Makefile

@@ -11,5 +11,6 @@ obj-$(CONFIG_AGP_INTEL)		+= intel-agp.o
 obj-$(CONFIG_AGP_NVIDIA)	+= nvidia-agp.o
 obj-$(CONFIG_AGP_SIS)		+= sis-agp.o
 obj-$(CONFIG_AGP_SWORKS)	+= sworks-agp.o
+obj-$(CONFIG_AGP_UNINORTH)	+= uninorth-agp.o
 obj-$(CONFIG_AGP_VIA)		+= via-agp.o
 

include/asm-ppc/agp.h

+#ifndef AGP_H
+#define AGP_H 1
+
+#include <asm/io.h>
+
+/* nothing much needed here */
+
+#define map_page_into_agp(page) 
+#define unmap_page_from_agp(page) 
+#define flush_agp_mappings() 
+#define flush_agp_cache() mb()
+
+#endif