On 02/22/2014 05:44 AM, Cody P Schafer wrote:
/sys/devices/system/cpu/cpu*/smt-snooze-delay was converted into a NOP
in commit 3fa8cad82b94d0bed002571bd246f2299ffc876b, and now does
nothing. Add a pr_warn() to convince any users that they should stop
using it.
The commit message from the
routine.
Signed-off-by: Preeti U Murthy pre...@linux.vnet.ibm.com
Reviewed-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-powernv.c |5 +
1 file changed, 5 insertions(+)
diff --git a/drivers/cpuidle/cpuidle-powernv.c
b/drivers/cpuidle/cpuidle-powernv.c
Hi Preeti,
Thanks for the patch.
On 02/07/2014 12:31 PM, Preeti U Murthy wrote:
Hi Nicolas,
Find below the patch that will need to be squashed with this one.
This patch is based on the mainline.Adding Deepthi, the author of
the patch which introduced the powernv cpuidle driver. Deepthi,
comments from V2 have been addressed
includes comment formats, changing naming
conventions and incorporated error handling
of the buffers.
* Minor typo fix and use of pr_err/pr_fmt to
log errors.
Deepthi Dharwar (3):
powernv: Push critical error logs to FSP
powernv: Correct spell
This patch provides error logging interfaces to report critical
powernv error logs to FSP.
All the required information to dump the error is collected
at POWERNV level through error log interfaces
and then pushed on to FSP.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch
Correct spell error in opal-elog.c
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal-elog.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/opal-elog.c
b/arch/powerpc/platforms/powernv/opal
Currently some errors/info to be reported use
printk and the rest pr_fmt(). This patch
makes the complete error logging uniform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal-elog.c | 14 ++
1 file changed, 6 insertions(+), 8
This patch provides error logging interfaces to report critical
powernv error logs to FSP.
All the required information to dump the error is collected
at POWERNV level through error log interfaces
and then pushed on to FSP.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch
.
* Minor typo fix and use of pr_err/pr_fmt to
log errors.
Deepthi Dharwar (3):
powernv: Push critical error logs to FSP
powernv: Correct spell error in opal-elog.c
powernv: Have uniform logging of errors in opal-elog.c
arch/powerpc/include/asm/opal.h| 36
Correct spell error in opal-elog.c
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal-elog.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/opal-elog.c
b/arch/powerpc/platforms/powernv/opal
Currently some errors/info to be reported use
printk and the rest pr_fmt(). This patch
makes the complete error logging uniform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal-elog.c | 14 ++
1 file changed, 6 insertions(+), 8
This patch provides error logging interfaces to report critical
powernv error logs to FSP.
All the required information to dump the error is collected
at POWERNV level through error log interfaces
and then pushed on to FSP.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch
error handling
of the buffers.
* Minor typo fix and use of pr_err/pr_fmt to
log errors.
Deepthi Dharwar (3):
powernv: Push critical error logs to FSP
powernv: Correct spell error in opal-elog.c
powernv: Have uniform logging of errors in opal-elog.c
arch/powerpc/include/asm
Correct spell error in opal-elog.c
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal-elog.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/powernv/opal-elog.c
b/arch/powerpc/platforms/powernv/opal
Currently some errors/info to be reported use
printk and the rest pr_fmt(). This patch
makes the complete error/event logging uniform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal-elog.c | 14 ++
1 file changed, 6 insertions
Hi Steven,
On 01/14/2014 08:06 PM, Steven Pratt wrote:
I am looking for info on when and how we are able to disable power saving
features of current (P7, P7+) chips in order to reduce latency. This is often
done in latency sensitive applications when
power consumption is not an issue. On
On 01/14/2014 12:30 PM, Srivatsa S. Bhat wrote:
On 01/14/2014 11:35 AM, Preeti U Murthy wrote:
On PowerPC, in a particular test scenario, all the cpu idle states were
disabled.
Inspite of this it was observed that the idle state count of the shallowest
idle state, snooze, was increasing.
- https://lkml.org/lkml/2013/10/29/216
V8 - https://lkml.org/lkml/2013/11/11/29
Deepthi Dharwar (5):
pseries/cpuidle: Move processor_idle.c to drivers/cpuidle.
pseries/cpuidle: Use cpuidle_register() for initialisation.
pseries/cpuidle: Make cpuidle-pseries backend driver a non
...@linux.vnet.ibm.com
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries/processor_idle.c |3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/processor_idle.c
b/arch/powerpc/platforms/pseries/processor_idle.c
index a166e38..09e4f56
Move the file from arch specific pseries/processor_idle.c
to drivers/cpuidle/cpuidle-pseries.c
Make the relevant Makefile and Kconfig changes.
Also, introduce Kconfig.powerpc in drivers/cpuidle
for all powerpc cpuidle drivers.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch
,
this check is not required.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-pseries.c | 78 +
1 file changed, 11 insertions(+), 67 deletions(-)
diff --git a/drivers/cpuidle/cpuidle-pseries.c
b/drivers/cpuidle/cpuidle
This patch removes the usage of MAX_IDLE_STATE macro
and dead code around it. The number of states
are determined at run time based on the cpuidle
state table selected on a given platform
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-pseries.c | 28
, propose to clean
up the kernel code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/processor.h |7 ---
arch/powerpc/kernel/sysfs.c |2 --
drivers/cpuidle/cpuidle-pseries.c| 17 -
3 files changed, 26 deletions
CONFIG_POWERNV_IDLE.
This patch series applies on pseries cpuidle backend driver
fixes patchset posted earlier.
pseries/cpuidle: pseries cpuidle backend driver clean-ups.
Deepthi Dharwar (1):
powernv/cpuidle: Back-end cpuidle driver for powernv platform.
arch/powerpc/platforms/powernv
Following patch ports the cpuidle framework for powernv
platform and also implements a cpuidle back-end powernv
idle driver calling on to power7_nap and snooze idle states.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/setup.c | 13 ++
drivers
.
Signed-off-by: Preeti U Murthy pre...@linux.vnet.ibm.com
---
Acked-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
drivers/cpuidle/cpuidle.c|6 +-
drivers/cpuidle/governors/menu.c |7 ---
2 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/drivers/cpuidle
missed to get rid of these redundant
calls. These calls were carried over subsequent enhancements to the pseries
cpuidle routines. This patch takes care of eliminating this redundancy.
Signed-off-by: Preeti U Murthy pre...@linux.vnet.ibm.com
---
Acked-by: Deepthi Dharwar deep
Zolnierkiewicz b.zolnier...@samsung.com
Signed-off-by: Kyungmin Park kyungmin.p...@samsung.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
Acked-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Cc: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries/processor_idle.c | 2
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
Acked-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Cc: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries/processor_idle.c | 57
++---
1 file changed, 3 insertions(+), 54 deletions(-)
diff
Hi Micheal,
Thanks for the review.
On 12/18/2013 08:13 AM, Michael Ellerman wrote:
On Mon, 2013-12-16 at 18:00 +0530, Deepthi Dharwar wrote:
This patch provides error logging interfaces to report critical
powernv error to FSP.
All the required information to dump the error is collected
On 12/18/2013 10:57 AM, Michael Ellerman wrote:
On Wed, 2013-12-18 at 10:48 +0530, Deepthi Dharwar wrote:
Hi Micheal,
Thanks for the review.
No worries.
On 12/18/2013 08:13 AM, Michael Ellerman wrote:
On Mon, 2013-12-16 at 18:00 +0530, Deepthi Dharwar wrote:
+/* All the information
OPAL_ERROR_PANIC as severity in
elog_create() call.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/opal.h| 125
arch/powerpc/platforms/powernv/opal-elog.c | 60 +++-
arch/powerpc/platforms/powernv/opal
powerpc/powernv: Framework to log critical errors on powernv.
From: Deepthi Dharwar deep...@linux.vnet.ibm.com
This patch provides error logging interfaces to report critical
powernv error logs to FSP.
All the required information to dump the error is collected
at POWERNV level through error
in V1 with
pSeries to create a single powerpc driver but this had compile
time flags.
Deepthi Dharwar (7):
pseries/cpuidle: Move processor_idle.c to drivers/cpuidle.
pseries/cpuidle: Use cpuidle_register() for initialisation.
pseries/cpuidle: Make pseries_idle backend driver
Move the file from arch specific pseries/processor_idle.c
to drivers/cpuidle/cpuidle-powerpc-book3s.c
Make the relevant Makefile and Kconfig changes.
This will enable having a common backend cpuidle driver
for POWERPC-BOOK3S platform going forward.
Signed-off-by: Deepthi Dharwar deep
This patch replaces the cpuidle driver and devices initialisation
calls with a single generic cpuidle_register() call
and also includes minor refactoring of the code around it.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
---
drivers/cpuidle/cpuidle-powerpc-book3s.c | 15 +--
1 file changed, 1 insertion(+), 14 deletions(-)
diff --git a/drivers/cpuidle/cpuidle-powerpc-book3s.c
b/drivers/cpuidle
This patch removes the usage of MAX_IDLE_STATE macro
and dead code around it. The number of states
are determined at run time based on the cpuidle
state table selected on a given platform
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
This patch includes cleanup and refactoring of the
existing code to make the driver POWERPC-BOOK3S generic.
* Re-naming the functions from pseries to generic powerpc-book3s.
* Re-naming the backend driver from pseries_idle to
powerpc_book3s_idle.
Signed-off-by: Deepthi Dharwar deep
The following patch extends the current powerpc-book3s backend
idle driver to the powernv platform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
---
drivers/cpuidle/cpuidle-powerpc-book3s.c | 39 --
1
This patch enables idle cpu on the powernv platform to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
Acked-by: Daniel Lezcano daniel.lezc...@linaro.org
---
arch/powerpc/platforms/powernv
On 11/07/2013 02:35 AM, Daniel Lezcano wrote:
On 10/29/2013 12:01 PM, Deepthi Dharwar wrote:
This patch includes cleanup and refactoring of the
existing code to make the driver POWER generic.
* Re-naming the functions from pseries to generic power.
* Re-naming the backend driver from
On 11/07/2013 10:31 AM, Benjamin Herrenschmidt wrote:
On Thu, 2013-11-07 at 09:45 +0530, Deepthi Dharwar wrote:
'powerpc' would be very generic arch and would comprise of all platforms
including embedded 32/64 bit to server 64 bit (similar to that of ARM).
This driver does not intend
:
=
* Merged the backend driver posted out for powernv in V1 with
pSeries to create a single powerpc driver but this had compile
time flags.
Deepthi Dharwar (7):
pseries/cpuidle: Move processor_idle.c to drivers/cpuidle.
pseries/cpuidle: Use cpuidle_register
This patch replaces the cpuidle driver and devices initialisation
calls with a single generic cpuidle_register() call
and also includes minor refactoring of the code around it.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 80
Move the file from arch specific pseries/processor_idle.c
to drivers/cpuidle/cpuidle-ibm-power.c
Make the relevant Makefile and Kconfig changes.
This will enable having a common backend cpuidle driver
for POWER platform going forward.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 15 +--
1 file changed, 1 insertion(+), 14 deletions(-)
diff --git a/drivers/cpuidle/cpuidle-ibm-power.c
b/drivers/cpuidle/cpuidle-ibm-power.c
index faf8cc1..8c9e42c 100644
--- a/drivers
This patch removes the usage of MAX_IDLE_STATE macro
and dead code around it. The number of states
are determined at run time based on the cpuidle
state table selected on a given platform
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 26
This patch includes cleanup and refactoring of the
existing code to make the driver POWER generic.
* Re-naming the functions from pseries to generic power.
* Re-naming the backend driver from pseries_idle to
ibm-power-idle.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers
The following patch extends the current power backend
idle driver to the powernv platform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 39 ---
1 file changed, 36 insertions(+), 3 deletions(-)
diff --git
This patch enables idle cpu on the powernv platform to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/setup.c | 13 -
1 file changed, 12
a single powerpc driver but this had compile
time flags.
Deepthi Dharwar (7):
pseries/cpuidle: Move processor_idle.c to drivers/cpuidle.
pseries/cpuidle: Use cpuidle_register() for initialisation.
pseries/cpuidle: Make pseries_idle backend driver a non-module.
pseries
Move the file from arch specific pseries/processor_idle.c
to drivers/cpuidle/cpuidle-ibm-power.c
Make the relevant Makefile and Kconfig changes.
This will enable having a common backend cpuidle driver
for POWER platform going forward.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 15 +--
1 file changed, 1 insertion(+), 14 deletions(-)
diff --git a/drivers/cpuidle/cpuidle-ibm-power.c
b/drivers/cpuidle/cpuidle-ibm-power.c
index b42b948..262db3c 100644
--- a/drivers
This patch replaces the cpuidle driver and devices initialisation
calls with a single generic cpuidle_register() call
and also includes minor refactoring of the code around it.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 80
This patch includes cleanup and refactoring of the
existing code to make the driver POWER generic.
* Re-naming the functions from pseries to generic power.
* Re-naming the backend driver from pseries_idle to
ibm-power-idle.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers
This patch removes the usage of MAX_IDLE_STATE macro
and dead code around it. The number of states
are determined at run time based on the cpuidle
state table selected on a given platform
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 26
The following patch extends the current power backend
idle driver to the powernv platform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 39 ---
1 file changed, 36 insertions(+), 3 deletions(-)
diff --git
This patch enables idle cpu on the powernv platform to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/setup.c | 14 +-
1 file changed, 13
On 08/23/2013 02:54 AM, Scott Wood wrote:
On Thu, 2013-08-22 at 11:20 +0530, Deepthi Dharwar wrote:
On 08/22/2013 01:38 AM, Scott Wood wrote:
On Wed, 2013-08-21 at 10:23 +0530, Deepthi Dharwar wrote:
On 08/19/2013 11:47 PM, Scott Wood wrote:
What actual functionality is common to all powerpc
Hi Bartlomiej,
Thanks for the review.
On 08/22/2013 04:26 PM, Bartlomiej Zolnierkiewicz wrote:
Hi,
On Thursday, August 22, 2013 11:00:29 AM Deepthi Dharwar wrote:
This patch involves moving the current pseries_idle backend driver code
from pseries/processor_idle.c to drivers/cpuidle
you have tested the module? If not tested, please don't use the module.
We do want to make it a module. But for now that cannot be done due to
some other dependencies. This feature needs to be built in.
Thanks for the review.
+MODULE_AUTHOR(Deepthi Dharwar deep...@linux.vnet.ibm.com
(power_processor_idle_init);
+module_exit(power_processor_idle_exit);
+
Did you have tested the module? If not tested, please don't use the module.
+MODULE_AUTHOR(Deepthi Dharwar deep...@linux.vnet.ibm.com);
+MODULE_DESCRIPTION(Cpuidle driver for IBM POWER platforms);
+MODULE_LICENSE(GPL
On 08/22/2013 11:28 AM, Benjamin Herrenschmidt wrote:
On Thu, 2013-08-22 at 11:20 +0530, Deepthi Dharwar wrote:
But if having cpuidle backend-driver separately for other powerpc arcs
makes sense such that each one have their own state information etc
then it makes sense to name the files
As a part of pseries_idle cleanup to make the backend driver
code common to both pseries and powernv.
Remove non-essential smt_snooze_delay declaration in pseries.h
header file and pseries.h file inclusion in
pseries/processor_idle.c
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
to create a single powerpc driver but this had compile
time flags.
Deepthi Dharwar (5):
pseries/cpuidle: Remove dependency of pseries.h file
pseries: Move plpar_wrapper.h to powerpc common include/asm location.
POWER/cpuidle: Generic IBM-POWER backend cpuidle driver.
POWER
As a part of pseries_idle backend driver cleanup to make
the code common to both pseries and powernv platforms, it
is necessary to move the backend-driver code to drivers/cpuidle.
As a pre-requisite for that, it is essential to move plpar_wrapper.h
to include/asm.
Signed-off-by: Deepthi Dharwar
This removes a lot of code duplicacy, thus making the code elegant.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/processor.h|2
arch/powerpc/platforms/pseries/Kconfig |9 -
arch/powerpc/platforms/pseries/Makefile |1
The following patch extends the current power backend
idle driver to the powernv platform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-ibm-power.c | 37 ---
1 file changed, 34 insertions(+), 3 deletions(-)
diff --git
This patch enables idle cpu on the powernv platform to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/setup.c | 14 +-
1 file changed, 13
.
Deepthi Dharwar (5):
pseries/cpuidle: Remove dependency of pseries.h file
pseries: Move plpar_wrapper.h to powerpc common include/asm location.
powerpc/cpuidle: Generic powerpc backend cpuidle driver.
powerpc/cpuidle: Enable powernv cpuidle support.
powernv/cpuidle: Enable
As a part of pseries_idle cleanup to make the backend driver
code common to both pseries and powernv.
Remove non-essential smt_snooze_delay declaration in pseries.h
header file and pseries.h file inclusion in
pseries/processor_idle.c
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
As a part of pseries_idle backend driver cleanup to make
the code common to both pseries and powernv platforms, it
is necessary to move the backend-driver code to drivers/cpuidle.
As a pre-requisite for that, it is essential to move plpar_wrapper.h
to include/asm.
Signed-off-by: Deepthi Dharwar
The following patch extends the current powerpc backend
idle driver to the powernv platform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-powerpc.c | 35 +--
1 file changed, 33 insertions(+), 2 deletions(-)
diff --git
-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/paca.h | 23 +
arch/powerpc/include/asm/processor.h|2
arch/powerpc/platforms/pseries/Kconfig |9 -
arch/powerpc/platforms/pseries/Makefile |1
arch/powerpc/platforms
This patch enables idle cpu on the powernv platform to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/setup.c | 14 +-
1 file changed, 13
On 08/22/2013 01:38 AM, Scott Wood wrote:
On Wed, 2013-08-21 at 10:23 +0530, Deepthi Dharwar wrote:
On 08/19/2013 11:47 PM, Scott Wood wrote:
On Mon, 2013-08-19 at 15:48 +0530, Deepthi Dharwar wrote:
Hi Dongsheng,
On 08/19/2013 11:22 AM, Wang Dongsheng-B40534 wrote:
I think we should move
On 08/19/2013 11:47 PM, Scott Wood wrote:
On Mon, 2013-08-19 at 15:48 +0530, Deepthi Dharwar wrote:
Hi Dongsheng,
On 08/19/2013 11:22 AM, Wang Dongsheng-B40534 wrote:
I think we should move the states and handle function to
arch/power/platform*
The states and handle function is belong
Hi Dongsheng,
On 08/19/2013 11:22 AM, Wang Dongsheng-B40534 wrote:
I think we should move the states and handle function to arch/power/platform*
The states and handle function is belong to backend driver, not for this,
different platform have different state.
Different platforms to make
. This will be
one consolidated binary that does a run time
detection based on platform and take decisions
accordingly.
Deepthi Dharwar (5):
pseries/cpuidle: Remove dependency of pseries.h file
pseries: Move plpar_wrapper.h to powerpc common include/asm location.
powerpc
As a part of pseries_idle cleanup to make the backend driver
code common to both pseries and powernv.
Remove non-essential smt_snooze_delay declaration in pseries.h
header file and pseries.h file inclusion in
pseries/processor_idle.c
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
As a part of pseries_idle backend driver cleanup to make
the code common to both pseries and powernv platforms, it
is necessary to move the backend-driver code to drivers/cpuidle.
As a pre-requisite for that, it is essential to move plpar_wrapper.h
to include/asm.
Signed-off-by: Deepthi Dharwar
elegant.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/paca.h | 23 +
arch/powerpc/include/asm/processor.h|2
arch/powerpc/platforms/pseries/Kconfig |9 -
arch/powerpc/platforms/pseries/Makefile |1
This patch enables idle cpu on the powernv platform to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/setup.c | 14 +-
1 file changed, 13
The following patch extends the current powerpc backend
idle driver to the powernv platform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
drivers/cpuidle/cpuidle-powerpc.c | 36 +---
1 file changed, 33 insertions(+), 3 deletions(-)
diff --git
is per-cpu variable.
This can be used to enable/disable NAP on per-cpu
basis using sysfs but when this variable is passed
via kernel command line or using the smt-snooze-delay
it applies to all the cpus. Per-cpu tuning can
only be done via sysfs.
Signed-off-by: Deepthi Dharwar deep
for both pseries and powernv.
/* Snooze Delay, pseries_idle */
DECLARE_PER_CPU(long, smt_snooze_delay);
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries/processor_idle.c |4 +++-
arch/powerpc/platforms/pseries/pseries.h|3 ---
2 files changed
framework.
This patch mainly focus on an integrated CPUIDLE backend
driver for POWERPC. Minor cpuidle clean-ups will be
taken up going further.
One need to enable POWERPC_IDLE config option to exploit these
backend drivers.
V1 - http://lkml.org/lkml/2013/7/23/143
Deepthi Dharwar (6):
cpuidle
This patch enables idle powernv cpu to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/setup.c | 12 +++-
1 file changed, 11 insertions(+), 1
Move pseries_idle backend driver code to arch/powerpc/sysdev
so that the code can be used for a common driver for powernv
and pseries. This removes a lot of code duplicacy.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/pseries/Kconfig |9
As a part of pseries_idle backend driver cleanup to make
the code common to both pseries and powernv archs, it
is necessary to move the backend-driver code to powerpc/sysdev.
As a pre-requisite to that, it is essential to move plpar_wrapper.h
to include/asm.
Signed-off-by: Deepthi Dharwar deep
The following patch extends the current pseries backend
idle driver to powernv platform.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/processor.h |2 -
arch/powerpc/sysdev/Kconfig |8 +-
arch/powerpc/sysdev/Makefile |2
On 07/27/2013 10:59 AM, Daniel Lezcano wrote:
On 07/23/2013 11:01 AM, Deepthi Dharwar wrote:
This patch enables idle powernv cpu to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Why do you need to do that ?
Hi Daniel,
Well, this is needed
Hi Daniel,
On 07/27/2013 10:57 AM, Daniel Lezcano wrote:
On 07/23/2013 11:01 AM, Deepthi Dharwar wrote:
This patch implements a back-end cpuidle driver for
powernv calling power7_nap and snooze idle states.
This can be extended by adding more idle states
in the future to the existing
On 07/29/2013 08:14 PM, Daniel Lezcano wrote:
On 07/29/2013 04:27 PM, Deepthi Dharwar wrote:
On 07/27/2013 10:59 AM, Daniel Lezcano wrote:
On 07/23/2013 11:01 AM, Deepthi Dharwar wrote:
This patch enables idle powernv cpu to hook on to the cpuidle
framework, if available, else call
On 07/29/2013 08:23 PM, Daniel Lezcano wrote:
On 07/29/2013 04:39 PM, Deepthi Dharwar wrote:
Hi Daniel,
On 07/27/2013 10:57 AM, Daniel Lezcano wrote:
On 07/23/2013 11:01 AM, Deepthi Dharwar wrote:
This patch implements a back-end cpuidle driver for
powernv calling power7_nap and snooze idle
On 07/23/2013 07:36 PM, Michael Ellerman wrote:
On Tue, Jul 23, 2013 at 02:31:41PM +0530, Deepthi Dharwar wrote:
This patch implements a back-end cpuidle driver for
powernv calling power7_nap and snooze idle states.
This can be extended by adding more idle states
in the future to the existing
with pSeries idle management.
For POWERNV platform to hook into CPUIDLE framework, one
needs to enable CONFIG_POWERNV_IDLE and disable
CONFIG_PSERIES_IDLE
Deepthi Dharwar (3):
cpuidle/powernv: cpuidle backend driver for powernv
cpuidle/powernv: Enable idle powernv cpu to call
This patch implements a back-end cpuidle driver for
powernv calling power7_nap and snooze idle states.
This can be extended by adding more idle states
in the future to the existing framework.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/Kconfig
This patch enables idle powernv cpu to hook on to the cpuidle
framework, if available, else call on to default idle platform
code.
Signed-off-by: Deepthi Dharwar deep...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/setup.c | 12 +++-
1 file changed, 11 insertions(+), 1
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