powerpc: Unify the 32 and 64 bit idle loops

This unifies the 32-bit (ARCH=ppc and ARCH=powerpc) and 64-bit idle
loops.  It brings over the concept of having a ppc_md.power_save
function from 32-bit to ARCH=powerpc, which lets us get rid of
native_idle().  With this we will also be able to simplify the idle
handling for pSeries and cell.

Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 8 insertions, 5 deletions

diff --git a/include/asm-powerpc/machdep.h b/include/asm-powerpc/machdep.h
index 5348b820788c..21c8dc90d175 100644
--- a/include/asm-powerpc/machdep.h
+++ b/include/asm-powerpc/machdep.h
@@ -158,6 +158,12 @@ struct machdep_calls {
 	/* Idle loop for this platform, leave empty for default idle loop */
 	void		(*idle_loop)(void);
 
+	/*
+	 * Function for waiting for work with reduced power in idle loop;
+	 * called with interrupts disabled.
+	 */
+	void		(*power_save)(void);
+
 	/* Function to enable performance monitor counters for this
 	   platform, called once per cpu. */
 	void		(*enable_pmcs)(void);
@@ -170,9 +176,6 @@ struct machdep_calls {
 	   May be NULL. */
 	void		(*init)(void);
 
-	void		(*idle)(void);
-	void		(*power_save)(void);
-
 	void		(*heartbeat)(void);
 	unsigned long	heartbeat_reset;
 	unsigned long	heartbeat_count;
@@ -242,8 +245,8 @@ struct machdep_calls {
 #endif /* CONFIG_KEXEC */
 };
 
-extern void default_idle(void);
-extern void native_idle(void);
+extern void power4_idle(void);
+extern void ppc6xx_idle(void);
 
 extern struct machdep_calls ppc_md;
 extern char cmd_line[COMMAND_LINE_SIZE];