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powerpc/cpuidle: cpuidle driver for pSeries

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This patch implements a back-end cpuidle driver for pSeries
based on pseries_dedicated_idle_loop and pseries_shared_idle_loop
routines.  The driver is built only if CONFIG_CPU_IDLE is set. This
cpuidle driver uses global registration of idle states and
not per-cpu.

Signed-off-by: Deepthi Dharwar <deepthi@linux.vnet.ibm.com>
Signed-off-by: Trinabh Gupta <g.trinabh@gmail.com>
Signed-off-by: Arun R Bharadwaj <arun.r.bharadwaj@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Deepthi Dharwar
2011-11-30 02:46:42 +00:00
committed by Benjamin Herrenschmidt
parent 771dae8189
commit 707827f338
8 changed files with 350 additions and 3 deletions
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3
arch/powerpc/platforms/pseries/setup.c
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@@ -585,9 +585,6 @@ static int __init pSeries_probe(void)
return 1;
}
DECLARE_PER_CPU(long, smt_snooze_delay);
static void pseries_dedicated_idle_sleep(void)
{
unsigned int cpu = smp_processor_id();