powerpc: Merge in 64-bit powermac support.
This brings in a lot of changes from arch/ppc64/kernel/pmac_*.c to
arch/powerpc/platforms/powermac/*.c and makes various minor tweaks
elsewhere. On the powermac we now initialize ppc_md by copying
the whole pmac_md structure into it, which required some changes in
the ordering of initializations of individual fields of it.
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/include/asm-ppc64/system.h b/include/asm-ppc64/system.h
index d1e0093..2e17ef7 100644
--- a/include/asm-ppc64/system.h
+++ b/include/asm-ppc64/system.h
@@ -148,6 +148,8 @@
extern struct task_struct * _switch(struct thread_struct *prev,
struct thread_struct *next);
+extern int powersave_nap; /* set if nap mode can be used in idle loop */
+
/*
* Atomic exchange
*