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authorJohannes Berg <johannes@sipsolutions.net>2007-05-02 16:33:51 -0400
committerPaul Mackerras <paulus@samba.org>2007-05-07 06:31:13 -0400
commitd9333afd6a714760c13f76ba275a32ec7bd979c1 (patch)
treeb75cb98ff938edca5aa5254b209d58037e8ec89c /drivers/video
parentac18c673e7fa71f62ce613edfe6634edb99f968b (diff)
[POWERPC] powermac: Support G5 CPU hotplug
This allows "hotplugging" of CPUs on G5 machines. CPUs that are disabled are put into an idle loop with the decrementer frequency set to minimum. To wake them up again we kick them just like when bringing them up. To stop those CPUs from messing with any global state we stop them from entering the timer interrupt. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
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