* [PATCH] powerpc: Ensure runlatch is off in the idle loop
@ 2006-04-02 9:54 Anton Blanchard
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From: Anton Blanchard @ 2006-04-02 9:54 UTC (permalink / raw)
To: linuxppc-dev; +Cc: paulus
Since external and decrementer interrupts set the runlatch on, we need
to ensure its set off again in the idle loop. At the moment we dont turn
it off in the inner loop.
Signed-off-by: Anton Blanchard <anton@samba.org>
---
Index: build/arch/powerpc/kernel/idle.c
===================================================================
--- build.orig/arch/powerpc/kernel/idle.c 2006-03-30 10:08:47.000000000 +1100
+++ build/arch/powerpc/kernel/idle.c 2006-04-01 21:35:54.000000000 +1100
@@ -50,9 +50,9 @@ void cpu_idle(void)
set_thread_flag(TIF_POLLING_NRFLAG);
while (1) {
- ppc64_runlatch_off();
-
while (!need_resched() && !cpu_should_die()) {
+ ppc64_runlatch_off();
+
if (ppc_md.power_save) {
clear_thread_flag(TIF_POLLING_NRFLAG);
/*
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2006-04-02 9:54 [PATCH] powerpc: Ensure runlatch is off in the idle loop Anton Blanchard
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