From: Olof Johansson <olof@lixom.net>
To: linuxppc-dev@ozlabs.org
Subject: [PATCH] [POWERPC] pasemi: Move cpus to hold loop before restart
Date: Wed, 7 Nov 2007 09:41:30 -0600 [thread overview]
Message-ID: <20071107154130.GB3187@lixom.net> (raw)
[POWERPC] pasemi: Move cpus to hold loop before restart
Use smp_send_stop() to move all cpus besides the one executing reboot
into a hold loop, to keep them from being in powersavings mode at the
time of reboot.
Signed-off-by: Olof Johansson <olof@lixom.net>
diff --git a/arch/powerpc/platforms/pasemi/setup.c b/arch/powerpc/platforms/pasemi/setup.c
index bd85853..14dace7 100644
--- a/arch/powerpc/platforms/pasemi/setup.c
+++ b/arch/powerpc/platforms/pasemi/setup.c
@@ -60,6 +60,9 @@ static int num_mce_regs;
static void pas_restart(char *cmd)
{
+ /* Need to put others cpu in hold loop so they're not sleeping */
+ smp_send_stop();
+ udelay(10000);
printk("Restarting...\n");
while (1)
out_le32(reset_reg, 0x6000000);
reply other threads:[~2007-11-07 15:32 UTC|newest]
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