From: Anton Blanchard <anton@samba.org>
To: linuxppc-dev@ozlabs.org
Cc: paulus@samba.org
Subject: [PATCH] powerpc: Ensure runlatch is off in the idle loop
Date: Sun, 2 Apr 2006 19:54:09 +1000 [thread overview]
Message-ID: <20060402095409.GJ23416@krispykreme> (raw)
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);
/*
reply other threads:[~2006-04-02 9:54 UTC|newest]
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