On 06/17/2011 10:06 AM, Benjamin Herrenschmidt wrote:
On Tue, 2011-06-07 at 22:00 +0530, Trinabh Gupta wrote:
+static int snooze_loop(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv,
+ int index)
+{
+ unsigned long in_purr, out_purr
On 06/17/2011 10:02 AM, Benjamin Herrenschmidt wrote:
On Tue, 2011-06-07 at 22:00 +0530, Trinabh Gupta wrote:
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index 39a2baa..932392b 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -102,6 +102,24
On 06/17/2011 09:59 AM, Benjamin Herrenschmidt wrote:
On Tue, 2011-06-07 at 21:59 +0530, Trinabh Gupta wrote:
From: Len Brown
useful for disabling cpuidle to fall back
to architecture-default idle loop
cpuidle drivers and governors will fail to register.
on x86 they'll say so:
intel
This patch makes pseries_idle_driver to be not registered when
power_save=off kernel boot option is specified. For this
boot_option_idle_override is used similar to how it is used for x86.
Signed-off-by: Trinabh Gupta
Signed-off-by: Arun R Bharadwaj
---
arch/powerpc/include/asm/processor.h
are now implemented as part of
pseries_idle cpuidle driver.
Signed-off-by: Trinabh Gupta
Signed-off-by: Arun R Bharadwaj
---
arch/powerpc/platforms/Kconfig |6 ++
arch/powerpc/platforms/pseries/Kconfig |2 -
arch/powerpc/platforms/pseries/setup.c | 86
This patch implements a cpuidle driver for pSeries based on
routines pseries_dedicated_idle_loop and pseries_shared_idle_loop.
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: Trinabh Gupta
Signed-off
This patch provides cpu_idle_wait() routine required
by the cpuidle subsystem. Almost all the code is borrowed
from x86.
Signed-off-by: Trinabh Gupta
Signed-off-by: Arun R Bharadwaj
---
arch/powerpc/Kconfig |4
arch/powerpc/include/asm/system.h |1 +
arch/powerpc
From: Len Brown
pm_idle does not scale as an idle handler registration mechanism.
Don't use it for cpuidle. Instead, call cpuidle directly, and
allow architectures to use pm_idle as an arch-specific default
if they need it. ie.
cpu_idle()
...
if(cpuidle_call_idle())
From: Len Brown
When a Xen Dom0 kernel boots on a hypervisor, it gets access
to the raw-hardware ACPI tables. While it parses the idle tables
for the hypervisor's beneift, it uses HLT for its own idle.
Rather than have xen scribble on pm_idle and access default_idle,
have it simply disable_cpui
From: Len Brown
useful for disabling cpuidle to fall back
to architecture-default idle loop
cpuidle drivers and governors will fail to register.
on x86 they'll say so:
intel_idle: intel_idle yielding to (null)
ACPI: acpi_idle yielding to (null)
Signed-off-by: Len Brown
---
Documentation/ker
This patch series ports the cpuidle framework for ppc64 platform and
implements a cpuidle back-end driver for ppc64 (pSeries) platform.
Currently idle states are managed by pseries_{dedicated,shared}_idle_sleep()
routines in arch/powerpc/platforms/pseries/setup.c. There are
generally two idle sta
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