[PATCH V3] powernv: sensor-groups: Add debugfs file to enable/disable sensor groups

2019-04-10 Thread Shilpasri G Bhat
This patch provides support to disable and enable platform specific sensor groups like performance, utilization and frequency which are not supported in hwmon. Signed-off-by: Shilpasri G Bhat --- Changes from V2: - Rebase on master Changes from V1: - As per Michael Ellerman's suggestion, adding

[PATCH v2] powernv: powercap: Add hard minimum powercap

2019-02-28 Thread Shilpasri G Bhat
to export the hard minimum powercap limit to allow the user to set the appropriate powercap value that can be managed by the system. Signed-off-by: Shilpasri G Bhat --- Changes from V1: - s/asserted/enforced by OCC .../ABI/testing/sysfs-firmware-opal-powercap | 10 arch/powerpc/platforms

Re: [PATCH] powernv: powercap: Add hard minimum powercap

2019-02-27 Thread Shilpasri G Bhat
Hi, On 02/28/2019 10:14 AM, Daniel Axtens wrote: > Shilpasri G Bhat writes: > >> In POWER9, OCC(On-Chip-Controller) provides for hard and soft system >> powercapping range. The hard powercap range is guaranteed while soft >> powercap may or may not be asserted due

[PATCH] powernv: powercap: Add hard minimum powercap

2019-02-27 Thread Shilpasri G Bhat
the hard minimum powercap limit to allow the user to set the appropriate powercap value that can be managed by the system. Signed-off-by: Shilpasri G Bhat --- .../ABI/testing/sysfs-firmware-opal-powercap | 10 arch/powerpc/platforms/powernv/opal-powercap.c | 66

[PATCH v2] powernv: sensor-groups: Add debugfs file to enable/disable sensor groups

2018-10-23 Thread Shilpasri G Bhat
This patch provides support to disable and enable platform specific sensor groups like performance, utilization and frequency which are currently not supported in hwmon. Signed-off-by: Shilpasri G Bhat --- Changes from V1: - As per Michael Ellerman's suggestion, adding the "enable&q

[PATCH] powernv: opal-sensor-groups: Add attributes to disable/enable sensors

2018-08-01 Thread Shilpasri G Bhat
This patch provides support to disable and enable plaform specific sensor groups like performance, utilization and frequency which are currently not supported in hwmon. Signed-off-by: Shilpasri G Bhat --- This patch is based on https://git.kernel.org/powerpc/c/04baaf28f40c68c35a413cd9d0db71

[PATCH v8 2/2] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-24 Thread Shilpasri G Bhat
sensors and maintains their values in main memory. This patch provides support for enabling/disabling the sensor groups like power, temperature, current and voltage. Signed-off-by: Shilpasri G Bhat [stew...@linux.vnet.ibm.com: Commit message] --- Changes from v7: - Use of_for_each_phandle

[PATCH v8 1/2] powernv:opal-sensor-groups: Add support to enable sensor groups

2018-07-24 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group at runtime. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat

[PATCH v8 0/2] hwmon/powernv: Add attributes to enable/disable sensors

2018-07-24 Thread Shilpasri G Bhat
/lkml/2018/7/15/15 v4 : https://lkml.org/lkml/2018/7/6/379 v3 : https://lkml.org/lkml/2018/7/5/476 v2 : https://lkml.org/lkml/2018/7/4/263 v1 : https://lkml.org/lkml/2018/3/22/214 Shilpasri G Bhat (2): powernv:opal-sensor-groups: Add support to enable sensor groups hwmon: ibmpowernv: Add

[PATCH v7 2/2] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-20 Thread Shilpasri G Bhat
sensors and maintains their values in main memory. This patch provides support for enabling/disabling the sensor groups like power, temperature, current and voltage. Signed-off-by: Shilpasri G Bhat [stew...@linux.vnet.ibm.com: Commit message] --- Changes from v6: - Updated the commit message as per

[PATCH v7 1/2] powernv:opal-sensor-groups: Add support to enable sensor groups

2018-07-20 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group at runtime. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat

[PATCH v7 0/2] hwmon/powernv: Add attributes to enable/disable sensors

2018-07-20 Thread Shilpasri G Bhat
/7/15/15 v4 : https://lkml.org/lkml/2018/7/6/379 v3 : https://lkml.org/lkml/2018/7/5/476 v2 : https://lkml.org/lkml/2018/7/4/263 v1 : https://lkml.org/lkml/2018/3/22/214 Shilpasri G Bhat (2): powernv:opal-sensor-groups: Add support to enable sensor groups hwmon: ibmpowernv: Add attributes

[PATCH v6 0/2] hwmon/powernv: Add attributes to enable/disable sensors

2018-07-18 Thread Shilpasri G Bhat
://lkml.org/lkml/2018/7/5/476 v2 : https://lkml.org/lkml/2018/7/4/263 v1 : https://lkml.org/lkml/2018/3/22/214 Shilpasri G Bhat (2): powernv:opal-sensor-groups: Add support to enable sensor groups hwmon: ibmpowernv: Add attributes to enable/disable sensor groups Documentation/hwmon/ibmpowernv

[PATCH v6 1/2] powernv:opal-sensor-groups: Add support to enable sensor groups

2018-07-18 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group at runtime. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat

[PATCH v6 2/2] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-18 Thread Shilpasri G Bhat
. This patch provides support for enabling/disabling the sensor groups like power, temperature, current and voltage. This patch adds new per-senor sysfs attribute to disable and enable them. Signed-off-by: Shilpasri G Bhat --- Changes from v5: - Dont store the sensor node and parse the device-tree

Re: [PATCH v5 2/2] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-18 Thread Shilpasri G Bhat
Hi, On 07/17/2018 07:17 PM, Guenter Roeck wrote: > On 07/14/2018 11:54 PM, Shilpasri G Bhat wrote: >> On-Chip-Controller(OCC) is an embedded micro-processor in POWER9 chip >> which measures various system and chip level sensors. These sensors >> comprises of environmenta

[PATCH v5 2/2] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-15 Thread Shilpasri G Bhat
. This patch provides support for enabling/disabling the sensor groups like power, temperature, current and voltage. This patch adds new per-senor sysfs attribute to disable and enable them. Signed-off-by: Shilpasri G Bhat --- Changes from v4: - As per Mpe's suggestion store device_node instead

[PATCH v5 1/2] powernv:opal-sensor-groups: Add support to enable sensor groups

2018-07-15 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group at runtime. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat

[PATCH v5 0/2] hwmon/powernv: Add attributes to enable/disable sensors

2018-07-15 Thread Shilpasri G Bhat
://lkml.org/lkml/2018/7/6/379 v3 : https://lkml.org/lkml/2018/7/5/476 v2 : https://lkml.org/lkml/2018/7/4/263 v1 : https://lkml.org/lkml/2018/3/22/214 Shilpasri G Bhat (2): powernv:opal-sensor-groups: Add support to enable sensor groups hwmon: ibmpowernv: Add attributes to enable/disable sensor

[PATCH v4 3/3] hwmon: Document the sensor enable attribute

2018-07-06 Thread Shilpasri G Bhat
Signed-off-by: Shilpasri G Bhat --- Documentation/hwmon/sysfs-interface | 62 + 1 file changed, 62 insertions(+) diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index fc337c3..f865dd7 100644 --- a/Documentation/hwmon

[PATCH v4 2/3] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-06 Thread Shilpasri G Bhat
. This patch provides support for enabling/disabling the sensor groups like power, temperature, current and voltage. This patch adds new per-senor sysfs attribute to disable and enable them. Signed-off-by: Shilpasri G Bhat --- Changes from v3: - Add 'enable' attribute for each sensor sub-group

[PATCH v4 1/3] powernv:opal-sensor-groups: Add support to enable sensor groups

2018-07-06 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group at runtime. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat

[PATCH v4 0/3] hwmon: Add attributes to enable/disable sensors

2018-07-06 Thread Shilpasri G Bhat
This patch series adds new attribute to enable or disable a sensor in runtime. v3 : https://lkml.org/lkml/2018/7/5/476 v2 : https://lkml.org/lkml/2018/7/4/263 v1 : https://lkml.org/lkml/2018/3/22/214 Shilpasri G Bhat (3): powernv:opal-sensor-groups: Add support to enable sensor groups hwmon

Re: [PATCH v3 2/3] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-05 Thread Shilpasri G Bhat
Hi, On 07/05/2018 09:07 PM, Guenter Roeck wrote: > On 07/05/2018 06:51 AM, Shilpasri G Bhat wrote: >> On-Chip-Controller(OCC) is an embedded micro-processor in POWER9 chip >> which measures various system and chip level sensors. These sensors >> comprises of environmenta

[PATCH v3 3/3] hwmon: Document the sensor enable attribute and update ibmpowernv

2018-07-05 Thread Shilpasri G Bhat
Signed-off-by: Shilpasri G Bhat --- Documentation/hwmon/ibmpowernv | 35 +++- Documentation/hwmon/sysfs-interface | 82 + 2 files changed, 115 insertions(+), 2 deletions(-) diff --git a/Documentation/hwmon/ibmpowernv b/Documentation/hwmon

[PATCH v3 2/3] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-05 Thread Shilpasri G Bhat
. This patch provides support for enabling/disabling the sensor groups like power, temperature, current and voltage. This patch adds new per-senor sysfs attribute to disable and enable them. Signed-off-by: Shilpasri G Bhat --- Changes from v2: - Writes to first 'enable' attribute of the sensor group

[PATCH v3 1/3] powernv:opal-sensor-groups: Add support to enable sensor groups

2018-07-05 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group at runtime. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat

[PATCH v3 0/3] hwmon: Add attributes to enable/disable sensors

2018-07-05 Thread Shilpasri G Bhat
This patch series adds new attribute to enable or disable a sensor in runtime. v2 : https://lkml.org/lkml/2018/7/4/263 v1 : https://lkml.org/lkml/2018/3/22/214 Shilpasri G Bhat (3): powernv:opal-sensor-groups: Add support to enable sensor groups hwmon: ibmpowernv: Add attributes to enable

Re: [PATCH v2 2/2] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-04 Thread Shilpasri G Bhat
Hi Guenter, Thanks for reviewing the patch. On 07/04/2018 08:16 PM, Guenter Roeck wrote: >> +/* Disable if last sensor in the group */ >> +send_command = true; >> +for (i = 0; i < sg->nr_sensor; i++) { >> +struct sensor_data *sd = sg->sensors[i]; >> + >> +

[PATCH v2 2/2] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-07-04 Thread Shilpasri G Bhat
. This patch provides support for enabling/disabling the sensor groups like power, temperature, current and voltage. This patch adds new per-senor sysfs attribute to disable and enable them. Signed-off-by: Shilpasri G Bhat --- Changes from v1: - Add per-sensor 'enable' attribute - Return -ENODATA when

[PATCH v2 1/2] powernv:opal-sensor-groups: Add support to enable sensor groups

2018-07-04 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group at runtime. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat

[PATCH v2 0/2] hwmon: Add attributes to enable/disable sensors

2018-07-04 Thread Shilpasri G Bhat
This patch series adds new attribute to enable or disable a sensor in runtime. v1 : https://lkml.org/lkml/2018/3/22/214 Shilpasri G Bhat (2): powernv:opal-sensor-groups: Add support to enable sensor groups hwmon: ibmpowernv: Add attributes to enable/disable sensor groups Documentation

Re: [PATCH 0/3] Add support to disable sensor groups in P9

2018-05-17 Thread Shilpasri G Bhat
On 05/17/2018 06:08 PM, Guenter Roeck wrote: > On 05/16/2018 11:10 PM, Shilpasri G Bhat wrote: >> >> >> On 05/15/2018 08:32 PM, Guenter Roeck wrote: >>> On Thu, Mar 22, 2018 at 04:24:32PM +0530, Shilpasri G Bhat wrote: >>>> This patch series adds suppo

Re: [PATCH 0/3] Add support to disable sensor groups in P9

2018-05-17 Thread Shilpasri G Bhat
On 05/15/2018 08:32 PM, Guenter Roeck wrote: > On Thu, Mar 22, 2018 at 04:24:32PM +0530, Shilpasri G Bhat wrote: >> This patch series adds support to enable/disable OCC based >> inband-sensor groups at runtime. The environmental sensor groups are >> managed in HWMON and t

[PATCH 3/3] hwmon: (ibmpowernv) Add energy sensors

2018-05-07 Thread Shilpasri G Bhat
This patch exports the accumulated power numbers of each power sensor maintained by OCC. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- drivers/hwmon/ibmpowernv.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/hwmon/ibmpowernv.c b/drivers/hwmon/ibmpow

[PATCH 2/3] hwmon: (ibmpowernv): Add support to read 64 bit sensors

2018-05-07 Thread Shilpasri G Bhat
The firmware has supported for reading sensor values of size u32. This patch adds support to use newer firmware functions which allows to read the sensors of size u64. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- drivers/hwmon/ibmpowernv.c | 7 --- 1 file chan

[PATCH 1/3] powernv: opal-sensor: Add support to read 64bit sensor values

2018-05-07 Thread Shilpasri G Bhat
This patch adds support to read 64-bit sensor values. This method is used to read energy sensors and counters which are of type u64. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/opal-api.h| 1 + arch/powerpc/include/asm/

[PATCH 0/3] Add support for energy sensors

2018-05-07 Thread Shilpasri G Bhat
This patch series provides support for adding energy sensors to ibmpowernv-hwmon driver. This patch adds support to read 64bit sensor values. Shilpasri G Bhat (3): powernv: opal-sensor: Add support to read 64bit sensor values hwmon: (ibmpowernv): Add support to read 64 bit sensors hwmon

[PATCH V3] cpufreq: powernv: Fix the hardlockup by synchronus smp_call in timer interrupt

2018-04-25 Thread Shilpasri G Bhat
652f13 (timers, cpufreq/powernv: Initialize the gpstate timer as pinned) Cc: <sta...@vger.kernel.org>[4.8+] Reported-by: Nicholas Piggin <npig...@gmail.com> Reported-by: Pridhiviraj Paidipeddi <ppaid...@linux.vnet.ibm.com> Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vne

Re: [PATCH V2] cpufreq: powernv: Fix the hardlockup by synchronus smp_call in timer interrupt

2018-04-25 Thread Shilpasri G Bhat
Hi, On 04/25/2018 02:47 PM, Viresh Kumar wrote: > On 25-04-18, 14:32, Shilpasri G Bhat wrote: >> gpstate_timer_handler() uses synchronous smp_call to set the pstate >> on the requested core. This causes the below hard lockup: >> >> [c03fe566b320] [c01d534

[PATCH V2] cpufreq: powernv: Fix the hardlockup by synchronus smp_call in timer interrupt

2018-04-25 Thread Shilpasri G Bhat
652f13 (timers, cpufreq/powernv: Initialize the gpstate timer as pinned) Cc: <sta...@vger.kernel.org>[4.8+] Reported-by: Nicholas Piggin <npig...@gmail.com> Reported-by: Pridhiviraj Paidipeddi <ppaid...@linux.vnet.ibm.com> Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vne

[PATCH] cpufreq: powernv: Remove global pstate ramp-down timer in POWER9

2018-04-25 Thread Shilpasri G Bhat
POWER9 doesnot support global pstate requests for the chip. So remove the timer logic which slowly ramps down the global pstate in P9 platforms. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- drivers/cpufreq/powernv-cpufreq.c | 23 ++- 1 file chang

Re: [PATCH] cpufreq: powernv: Fix the hardlockup by synchronus smp_call in timer interrupt

2018-04-24 Thread Shilpasri G Bhat
On 04/24/2018 01:01 PM, Nicholas Piggin wrote: > On Tue, 24 Apr 2018 12:47:32 +0530 > Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> wrote: > >> Hi, >> >> On 04/24/2018 11:30 AM, Nicholas Piggin wrote: >>> On Tue, 24 Apr 2018 10:

Re: [PATCH] cpufreq: powernv: Fix the hardlockup by synchronus smp_call in timer interrupt

2018-04-24 Thread Shilpasri G Bhat
Hi, On 04/24/2018 11:30 AM, Nicholas Piggin wrote: > On Tue, 24 Apr 2018 10:11:46 +0530 > Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> wrote: > >> gpstate_timer_handler() uses synchronous smp_call to set the pstate >> on the requested core. This c

Re: [PATCH] cpufreq: powernv: Fix the hardlockup by synchronus smp_call in timer interrupt

2018-04-23 Thread Shilpasri G Bhat
Hi, On 04/24/2018 10:40 AM, Stewart Smith wrote: > Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> writes: >> gpstate_timer_handler() uses synchronous smp_call to set the pstate >> on the requested core. This causes the below hard lockup: >> >> [c0

[PATCH] cpufreq: powernv: Fix the hardlockup by synchronus smp_call in timer interrupt

2018-04-23 Thread Shilpasri G Bhat
ipeddi <ppaid...@linux.vnet.ibm.com> Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- drivers/cpufreq/powernv-cpufreq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c index 05918

[PATCH 2/3] hwmon: ibmpowernv: Add attributes to enable/disable sensor groups

2018-03-22 Thread Shilpasri G Bhat
. This patch provides support for enabling/disabling the sensor groups like power, temperature, current and voltage. This patch adds new sysfs attributes to disable and enable them. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- - Should the new attributes be

[PATCH 3/3] powernv: opal-sensor-groups: Add attributes to disable/enable sensors

2018-03-22 Thread Shilpasri G Bhat
This patch provides support to disable and enable plaform specific sensor groups like performance, utilization and frequency. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- .../ABI/testing/sysfs-firmware-opal-sensor-groups | 34 + .../powerpc/platforms/powern

[PATCH 1/3] powernv:opal-sensor-groups: Add support to enable sensor groups

2018-03-22 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group at runtime. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat

[PATCH 0/3] Add support to disable sensor groups in P9

2018-03-22 Thread Shilpasri G Bhat
://lists.ozlabs.org/pipermail/skiboot/2018-March/010812.html Shilpasri G Bhat (3): powernv:opal-sensor-groups: Add support to enable sensor groups hwmon: ibmpowernv: Add attributes to enable/disable sensor groups powernv: opal-sensor-groups: Add attributes to disable/enable sensors .../ABI

[PATCH V2] powerpc/powernv : Add support to enable sensor groups

2018-02-21 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat <shilp

Re: [PATCH] cpufreq: powernv: Check negative value returned by cpufreq_table_find_index_dl()

2018-02-12 Thread Shilpasri G Bhat
Hi, On 02/12/2018 03:59 PM, Viresh Kumar wrote: > On 12-02-18, 15:51, Shilpasri G Bhat wrote: >> This patch fixes the below Coverity warning: >> >> *** CID 182816: Memory - illegal accesses (NEGATIVE_RETURNS) >> /drivers/cpufreq/powernv-cpufreq.c: 1008 in po

[PATCH] cpufreq: powernv: Check negative value returned by cpufreq_table_find_index_dl()

2018-02-12 Thread Shilpasri G Bhat
;. 1008freq_data.pstate_id = powernv_freqs[index].driver_data; 1009freq_data.gpstate_id = powernv_freqs[index].driver_data; 1010set_pstate(_data); 1011 1012return powernv_freqs[index].frequency; 1013 } Signed-off-by: Shilpasri G Bhat <shilpa.b...

[PATCH] cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin

2018-01-11 Thread Shilpasri G Bhat
acing pstate_id with frequency table index") Reported-by: Alvin Wang <wan...@tw.ibm.com> Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- drivers/cpufreq/powernv-cpufreq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/cpufre

Re: [PATCH] powerpc/powernv : Add support to enable sensor groups

2017-12-20 Thread Shilpasri G Bhat
Hi, On 12/04/2017 10:11 AM, Stewart Smith wrote: > Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> writes: >> On 11/28/2017 05:07 PM, Michael Ellerman wrote: >>> Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> writes: >>> >>>> Adds support

[PATCH] cpufreq: powernv: Define methods to parse positive & negative pstates

2017-11-29 Thread Shilpasri G Bhat
@linux.vnet.ibm.com> Tested-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- drivers/cpufreq/powernv-cpufreq.c | 43 ++- 1 file changed, 33 insertions(+), 10 deletions(-) diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpuf

Re: [PATCH] powerpc/powernv : Add support to enable sensor groups

2017-11-28 Thread Shilpasri G Bhat
Hi, On 11/28/2017 05:07 PM, Michael Ellerman wrote: > Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> writes: > >> Adds support to enable/disable a sensor group. This can be used to >> select the sensor groups that needs to be copied to main memory by >>

[PATCH] powerpc/powernv : Add support to enable sensor groups

2017-11-26 Thread Shilpasri G Bhat
Adds support to enable/disable a sensor group. This can be used to select the sensor groups that needs to be copied to main memory by OCC. Sensor groups like power, temperature, current, voltage, frequency, utilization can be enabled/disabled at runtime. Signed-off-by: Shilpasri G Bhat <shilp

[PATCH] powernv: Add OCC driver to mmap sensor area

2017-09-29 Thread Shilpasri G Bhat
This driver provides interface to mmap the OCC sensor area to userspace to parse and read OCC inband sensors. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- - The skiboot patch for this is posted here: https://lists.ozlabs.org/pipermail/skiboot/2017-September/00920

[PATCH V11 0/3] powernv : Add support for OPAL-OCC command/response interface

2017-08-09 Thread Shilpasri G Bhat
power shifting ratio 3) Clear min/max for OCC sensor groups Changes from V10: - Rebased on powerpc-next - Add sysfs interface instead of IOCTL (Skiboot patch for Patch3 is posted below: https://lists.ozlabs.org/pipermail/skiboot/2017-August/008553.html ) Shilpasri G Bhat (3): powernv: powercap

[PATCH V11 3/3] powernv: Add support to clear sensor groups data

2017-08-09 Thread Shilpasri G Bhat
Adds support for clearing different sensor groups. OCC inband sensor groups like CSM, Profiler, Job Scheduler can be cleared using this driver. The min/max of all sensors belonging to these sensor groups will be cleared. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.

[PATCH V11 1/3] powernv: powercap: Add support for powercap framework

2017-08-09 Thread Shilpasri G Bhat
Adds a generic powercap framework to change the system powercap inband through OPAL-OCC command/response interface. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- .../ABI/testing/sysfs-firmware-opal-powercap | 31 +++ arch/powerpc/include/asm/opal

[PATCH V11 2/3] powernv: Add support to set power-shifting-ratio

2017-08-09 Thread Shilpasri G Bhat
This patch adds support to set power-shifting-ratio which hints the firmware how to distribute/throttle power between different entities in a system (e.g CPU v/s GPU). This ratio is used by OCC for power capping algorithm. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.

[RESEND][PATCH V10 0/3] powernv : Add support for OPAL-OCC command/response interface

2017-07-31 Thread Shilpasri G Bhat
power shifting ratio 3) Clear min/max for OCC sensor groups Changes from V9: - Fixed return after erroring from mutex_lock_interruptible() - Added documentation - [RESEND] Fixed the version number of the patch-set in Subject Shilpasri G Bhat (3): powernv: powercap: Add support for powercap

[RESEND][PATCH V10 3/3] powernv: Add support to clear sensor groups data

2017-07-31 Thread Shilpasri G Bhat
Adds support for clearing different sensor groups. OCC inband sensor groups like CSM, Profiler, Job Scheduler can be cleared using this driver. The min/max of all sensors belonging to these sensor groups will be cleared. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.

[RESEND][PATCH V10 2/3] powernv: Add support to set power-shifting-ratio

2017-07-31 Thread Shilpasri G Bhat
This patch adds support to set power-shifting-ratio which hints the firmware how to distribute/throttle power between different entities in a system (e.g CPU v/s GPU). This ratio is used by OCC for power capping algorithm. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.

[RESEND][PATCH V10 1/3] powernv: powercap: Add support for powercap framework

2017-07-31 Thread Shilpasri G Bhat
Adds a generic powercap framework to change the system powercap inband through OPAL-OCC command/response interface. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- .../ABI/testing/sysfs-firmware-opal-powercap | 31 +++ arch/powerpc/include/asm/opal

[PATCH V9 1/3] powernv: powercap: Add support for powercap framework

2017-07-31 Thread Shilpasri G Bhat
Adds a generic powercap framework to change the system powercap inband through OPAL-OCC command/response interface. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- .../ABI/testing/sysfs-firmware-opal-powercap | 31 +++ arch/powerpc/include/asm/opal

[PATCH V9 3/3] powernv: Add support to clear sensor groups data

2017-07-31 Thread Shilpasri G Bhat
Adds support for clearing different sensor groups. OCC inband sensor groups like CSM, Profiler, Job Scheduler can be cleared using this driver. The min/max of all sensors belonging to these sensor groups will be cleared. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.

[PATCH V9 2/3] powernv: Add support to set power-shifting-ratio

2017-07-31 Thread Shilpasri G Bhat
This patch adds support to set power-shifting-ratio which hints the firmware how to distribute/throttle power between different entities in a system (e.g CPU v/s GPU). This ratio is used by OCC for power capping algorithm. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.

[PATCH V9 0/3] powernv : Add support for OPAL-OCC command/response interface

2017-07-31 Thread Shilpasri G Bhat
power shifting ratio 3) Clear min/max for OCC sensor groups Changes from V9: - Fixed return after erroring from mutex_lock_interruptible() - Added documentation Shilpasri G Bhat (3): powernv: powercap: Add support for powercap framework powernv: Add support to set power-shifting-ratio powernv

[PATCH V9 3/3] powernv: Add support to clear sensor groups data

2017-07-30 Thread Shilpasri G Bhat
Adds support for clearing different sensor groups. OCC inband sensor groups like CSM, Profiler, Job Scheduler can be cleared using this driver. The min/max of all sensors belonging to these sensor groups will be cleared. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- C

[PATCH V9 2/3] powernv: Add support to set power-shifting-ratio

2017-07-30 Thread Shilpasri G Bhat
This patch adds support to set power-shifting-ratio which hints the firmware how to distribute/throttle power between different entities in a system (e.g CPU v/s GPU). This ratio is used by OCC for power capping algorithm. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.

[PATCH V9 1/3] powernv: powercap: Add support for powercap framework

2017-07-30 Thread Shilpasri G Bhat
Adds a generic powercap framework to change the system powercap inband through OPAL-OCC command/response interface. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- Changes from V8: - Use __pa() while passing pointer in opal call - Use mutex_lock_interruptible() - Fix

[PATCH V9 0/3] powernv : Add support for OPAL-OCC command/response interface

2017-07-30 Thread Shilpasri G Bhat
power shifting ratio 3) Clear min/max for OCC sensor groups Shilpasri G Bhat (3): powernv: powercap: Add support for powercap framework powernv: Add support to set power-shifting-ratio powernv: Add support to clear sensor groups data arch/powerpc/include/asm/opal-api.h| 8

Re: [PATCH V8 1/3] powernv: powercap: Add support for powercap framework

2017-07-27 Thread Shilpasri G Bhat
Hi Cyril, On 07/28/2017 07:09 AM, Cyril Bur wrote: > Is there any reason that pcap_attrs needs to be contiguous? If not, I > feel like you could eliminate the entire loop below (and the last one > as well maybe) and just do the assignment of pattr_groups[].attrs[] up > there. > > In fact do you

[RFC] hwmon: (ibmpowernv) Add support for reset-history sensors

2017-07-25 Thread Shilpasri G Bhat
In P9, OCC allows for clearing the sensor min-max history. This patch exports attribute to reset history when set will clear the history of all the sensors owned by CSM and belonging to the chip. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- This patch is

[PATCH V8 3/3] powernv: Add support to clear sensor groups data

2017-07-25 Thread Shilpasri G Bhat
Adds support for clearing different sensor groups. OCC inband sensor groups like CSM, Profiler, Job Scheduler can be cleared using this driver. The min/max of all sensors belonging to these sensor groups will be cleared. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- C

[PATCH V8 2/3] powernv: Add support to set power-shifting-ratio

2017-07-25 Thread Shilpasri G Bhat
This patch adds support to set power-shifting-ratio for CPU-GPU which is used by OCC power capping algorithm. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- Changes from V7: - Replaced sscanf with kstrtoint arch/powerpc/include/asm/opal-api.h| 4 +-

[PATCH V8 1/3] powernv: powercap: Add support for powercap framework

2017-07-25 Thread Shilpasri G Bhat
Adds a generic powercap framework to change the system powercap inband through OPAL-OCC command/response interface. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- Changes from V7: - Replaced sscanf with kstrtoint arch/powerpc/include/asm/opal-api.h

[PATCH V8 0/3] powernv : Add support for OPAL-OCC command/response interface

2017-07-25 Thread Shilpasri G Bhat
power shifting ratio 3) Clear min/max for OCC sensor groups The skiboot patch for this interface is posted here: https://lists.ozlabs.org/pipermail/skiboot/2017-July/008352.html Shilpasri G Bhat (3): powernv: powercap: Add support for powercap framework powernv: Add support to set power-shifting

[PATCH V7 3/3] powernv : Add support to clear sensor groups data

2017-07-19 Thread Shilpasri G Bhat
Adds support for clearing different sensor groups. OCC inband sensor groups like CSM, Profiler, Job Scheduler can be cleared using this driver. The min/max of all sensors belonging to these sensor groups will be cleared. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- C

[PATCH V7 2/3] powernv: Add support to set power-shifting-ratio

2017-07-19 Thread Shilpasri G Bhat
This patch adds support to set power-shifting-ratio for CPU-GPU which is used by OCC power capping algorithm. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/opal-api.h| 4 +- arch/powerpc/include/asm/opal.h| 3 +

[PATCH V7 1/3] powernv: powercap: Add support for powercap framework

2017-07-19 Thread Shilpasri G Bhat
Adds a generic powercap framework to change the system powercap inband through OPAL-OCC command/response interface. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/opal-api.h| 5 +- arch/powerpc/include/asm/opal.h

[PATCH V7 0/3] powernv : Add support for OPAL-OCC command/response interface

2017-07-19 Thread Shilpasri G Bhat
power shifting ratio 3) Clear min/max for OCC sensor groups The skiboot patch for this interface is posted here: https://lists.ozlabs.org/pipermail/skiboot/2017-July/008293.html Shilpasri G Bhat (3): powernv: powercap: Add support for powercap framework powernv: Add support to set power-shifting

Re: [PATCH V6] powerpc/powernv : Add support for OPAL-OCC command/response interface

2017-06-29 Thread Shilpasri G Bhat
Hi, On 06/30/2017 12:02 AM, Shilpasri G Bhat wrote: > In P9, OCC (On-Chip-Controller) supports shared memory based > commad-response interface. Within the shared memory there is an OPAL > command buffer and OCC response buffer that can be used to send > inband commands to OCC. Thi

[PATCH V6] powerpc/powernv : Add support for OPAL-OCC command/response interface

2017-06-29 Thread Shilpasri G Bhat
between OCC and the host. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> Reviewed-by: Cyril Bur <cyril...@gmail.com> --- Changes from V5: - Rebased the opal_call to match the skiboot-master. Not sure if I need to add the IMC based OPAL call numbers [148-151] so I have

Re: [PATCH V5] powerpc/powernv : Add support for OPAL-OCC command/response interface

2017-06-29 Thread Shilpasri G Bhat
On 06/27/2017 10:05 AM, Cyril Bur wrote: > On Mon, 2017-06-26 at 11:02 +0530, Shilpasri G Bhat wrote: >> In P9, OCC (On-Chip-Controller) supports shared memory based >> commad-response interface. Within the shared memory there is an OPAL >> command buffer and OCC response bu

[PATCH V5] powerpc/powernv : Add support for OPAL-OCC command/response interface

2017-06-25 Thread Shilpasri G Bhat
between OCC and the host. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- The skiboot patch for the interface is posted here: https://lists.ozlabs.org/pipermail/skiboot/2017-June/007960.html Changes from V4: - Add token as a parameter to the opal_occ_command() - Use p

Re: [PATCH V4 2/2] powerpc/powernv : Add support for OPAL-OCC command/response interface

2017-06-21 Thread Shilpasri G Bhat
Hi Cyril, On 06/22/2017 06:28 AM, Cyril Bur wrote: > On Wed, 2017-06-21 at 13:36 +0530, Shilpasri G Bhat wrote: >> In P9, OCC (On-Chip-Controller) supports shared memory based >> commad-response interface. Within the shared memory there is an OPAL >> command buffer an

[PATCH V4 2/2] powerpc/powernv : Add support for OPAL-OCC command/response interface

2017-06-21 Thread Shilpasri G Bhat
between OCC and the host. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- - Hold occ->cmd_in_progress in read() - Reset occ->rsp_consumed if copy_to_user() fails arch/powerpc/include/asm/opal-api.h| 41 +++- arch/powerpc/include/asm/opal.h

[PATCH V4 1/2] powerpc/powernv: Get a unique token for async completions

2017-06-21 Thread Shilpasri G Bhat
This patch adds support to get a unique token for async completion requests. This will be used for creating non-repititive request handles for consecutive requests in OPAL-OCC command/response interface. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- - No changes f

[PATCH V4 0/2] Add support for OCC command/response interface

2017-06-21 Thread Shilpasri G Bhat
/007705.html Shilpasri G Bhat (2): powerpc/powernv: Get a unique token for async completions powerpc/powernv : Add support for OPAL-OCC command/response interface arch/powerpc/include/asm/opal-api.h| 41 +++- arch/powerpc/include/asm/opal.h| 4 + arch/powerpc

Re: [PATCH V2 1/2] hwmon: (ibmpowernv) introduce a legacy_compatibles array

2017-06-20 Thread Shilpasri G Bhat
On 06/20/2017 11:36 AM, Cédric Le Goater wrote: > On 06/20/2017 07:08 AM, Shilpasri G Bhat wrote: >> From: Cédric Le Goater <c...@kaod.org> >> >> Today, the type of a PowerNV sensor system is determined with the >> "compatible" property for

[PATCH V2 2/2] hwmon: (ibmpowernv) Add current(A) sensor

2017-06-19 Thread Shilpasri G Bhat
This patch exports current(A) sensors in inband sensors copied to main memory by OCC. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- Changes from V1: - Rebased on top of Cedric's patch to remove legay-compatible type for the current(A) sensor. drivers/hwmon/ibmpow

[PATCH V2 1/2] hwmon: (ibmpowernv) introduce a legacy_compatibles array

2017-06-19 Thread Shilpasri G Bhat
ome issue to introduce new sensor types. Let's introduce two different arrays (legacy and current) to make things easier for new sensor types. Signed-off-by: Cédric Le Goater <c...@kaod.org> Tested-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- drivers/hwmon/ibmpowernv.c |

[PATCH V2 0/2] hwmon: (ibmpowernv) Add support for current(A) sensors

2017-06-19 Thread Shilpasri G Bhat
The first patch from Cedric in the patchset cleans up the driver to provide a neater way to define new sensor types. The second patch adds current sensor. Cédric Le Goater (1): hwmon: (ibmpowernv) introduce a legacy_compatibles array Shilpasri G Bhat (1): hwmon: (ibmpowernv) Add current

Re: [PATCH] hwmon: (ibmpowernv) Add current(A) sensors

2017-06-19 Thread Shilpasri G Bhat
Hi Cedric, On 06/19/2017 06:22 PM, Cédric Le Goater wrote: > On 06/19/2017 11:25 AM, Shilpasri G Bhat wrote: >> This patch exports current(A) sensors in inband sensors copied to >> main memory by OCC. >> >> Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm

[PATCH] hwmon: (ibmpowernv) Add current(A) sensors

2017-06-19 Thread Shilpasri G Bhat
This patch exports current(A) sensors in inband sensors copied to main memory by OCC. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- drivers/hwmon/ibmpowernv.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/ibmpowernv.c b/drivers

[PATCH V3 2/2] powerpc/powernv : Add support for OPAL-OCC command/response interface

2017-06-19 Thread Shilpasri G Bhat
between OCC and the host. Signed-off-by: Shilpasri G Bhat <shilpa.b...@linux.vnet.ibm.com> --- Changes from V2: - Use atomic_set while dropping locks - Add rsp_consumed flag to protect the read() - Change the logging level of prints - Add MAX_POSSIBLE_CHIPS - Move the endian conversion o

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