[PATCH] ppc64: Make idle_loop a ppc_md function

This patch adds an idle member to the ppc_md structure and calls it from
cpu_idle().  If a platform leaves ppc_md.idle as null it will get the default
idle loop default_idle().

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 5 insertions, 3 deletions

diff --git a/arch/ppc64/kernel/idle.c b/arch/ppc64/kernel/idle.c
index 08952c7e6216..e270055e73e2 100644
--- a/arch/ppc64/kernel/idle.c
+++ b/arch/ppc64/kernel/idle.c
@@ -33,6 +33,7 @@
 #include <asm/iSeries/ItLpQueue.h>
 #include <asm/plpar_wrappers.h>
 #include <asm/systemcfg.h>
+#include <asm/machdep.h>
 
 extern void power4_idle(void);
 
@@ -122,7 +123,7 @@ static int iSeries_idle(void)
 
 #else
 
-static int default_idle(void)
+int default_idle(void)
 {
         long oldval;
         unsigned int cpu = smp_processor_id();
@@ -288,7 +289,7 @@ static int shared_idle(void)
 
 #endif /* CONFIG_PPC_PSERIES */
 
-static int native_idle(void)
+int native_idle(void)
 {
         while(1) {
                 /* check CPU type here */
@@ -308,7 +309,8 @@ static int native_idle(void)
 
 void cpu_idle(void)
 {
-        idle_loop();
+        BUG_ON(NULL == ppc_md.idle_loop);
+        ppc_md.idle_loop();
 }
 
 int powersave_nap;