From 2645e7219e88d1e2ab8b2939537bce36e6db9e8c Mon Sep 17 00:00:00 2001
From: Daniel Hellstrom <daniel@gaisler.com>
Date: Mon, 25 Apr 2011 21:48:17 +0000
Subject: sparc32,leon: SMP power down implementation
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
arch/sparc/kernel/process_32.c | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 17529298c50a..c8cc461ff75f 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -128,8 +128,16 @@ void cpu_idle(void)
set_thread_flag(TIF_POLLING_NRFLAG);
/* endless idle loop with no priority at all */
while(1) {
- while (!need_resched())
- cpu_relax();
+#ifdef CONFIG_SPARC_LEON
+ if (pm_idle) {
+ while (!need_resched())
+ (*pm_idle)();
+ } else
+#endif
+ {
+ while (!need_resched())
+ cpu_relax();
+ }
preempt_enable_no_resched();
schedule();
preempt_disable();
--
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