[POWERPC] DART iommu suspend
This implements save and restore hooks for IOMMUs and implements
it the DART iommu.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index bbd17d0..6fdabd6 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -91,6 +91,11 @@
void __iomem * (*ioremap)(phys_addr_t addr, unsigned long size,
unsigned long flags);
void (*iounmap)(volatile void __iomem *token);
+
+#ifdef CONFIG_PM
+ void (*iommu_save)(void);
+ void (*iommu_restore)(void);
+#endif
#endif /* CONFIG_PPC64 */
int (*probe)(void);