* [PATCH v3 00/10] Add sysfs interface files to hv_gpci device to expose system information
@ 2023-07-19 6:06 Kajol Jain
0 siblings, 0 replies; 3+ messages in thread
From: Kajol Jain @ 2023-07-19 6:06 UTC (permalink / raw)
To: mpe
Cc: linuxppc-dev, maddy, atrajeev, disgoel, kjain, linux-perf-users,
linux-kernel, rdunlap
The hcall H_GET_PERF_COUNTER_INFO can be used to get data related to
chips, dimms and system topology, by passing different counter request
values.
Patchset adds sysfs files to "/sys/devices/hv_gpci/interface/"
of hv_gpci pmu driver, which will expose system topology information
using H_GET_PERF_COUNTER_INFO hcall. The added sysfs files are
available for power10 and above platforms and needs root access
to read the data.
Patches 1,3,5,7,9 adds sysfs interface files to the hv_gpci
pmu driver, to get system topology information.
List of added sysfs files:
-> processor_bus_topology (Counter request value : 0xD0)
-> processor_config (Counter request value : 0x90)
-> affinity_domain_via_virtual_processor (Counter request value : 0xA0)
-> affinity_domain_via_domain (Counter request value : 0xB0)
-> affinity_domain_via_partition (Counter request value : 0xB1)
Patches 2,4,6,8,10 adds details of the newly added hv_gpci
interface files listed above in the ABI documentation.
Patches 2,4,6,8,10 adds details of the newly added hv_gpci
interface files listed above in the ABI documentation.
Changelog:
v2 -> v3
-> Make nit changes in documentation patches as suggested by Randy Dunlap.
v1 -> v2
-> Incase the HCALL fails with errors that can be resolve during runtime,
then only add sysinfo interface attributes to the interface_attrs
attribute array. Even if one of the counter request value HCALL fails,
don't add any sysinfo attribute to the interface_attrs attribute array.
Add the code changes to make sure sysinfo interface added only when all
the requirements met as suggested by Michael Ellerman.
-> Make changes in documentation, adds detail of errors type
which can be resolved at runtime as suggested by Michael Ellerman.
-> Add new enum and sysinfo_counter_request array to get required
counter request value in hv-gpci.c file.
-> Move the macros for interface attribute array index to hv-gpci.c, as
these macros currently only used in hv-gpci.c file.
Kajol Jain (10):
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show
processor bus topology information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
processor_bus_topology sysfs interface file
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show
processor config information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
processor_config sysfs interface file
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
domain via virtual processor information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
affinity_domain_via_virtual_processor sysfs interface file
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
domain via domain information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
affinity_domain_via_domain sysfs interface file
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
domain via partition information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
affinity_domain_via_partition sysfs interface file
.../sysfs-bus-event_source-devices-hv_gpci | 160 +++++
arch/powerpc/perf/hv-gpci.c | 640 +++++++++++++++++-
2 files changed, 798 insertions(+), 2 deletions(-)
--
2.39.3
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v3 00/10] Add sysfs interface files to hv_gpci device to expose system information
@ 2023-07-19 6:12 Kajol Jain
2023-07-25 5:53 ` Athira Rajeev
0 siblings, 1 reply; 3+ messages in thread
From: Kajol Jain @ 2023-07-19 6:12 UTC (permalink / raw)
To: mpe
Cc: linuxppc-dev, maddy, atrajeev, disgoel, kjain, linux-perf-users,
linux-kernel, rdunlap
The hcall H_GET_PERF_COUNTER_INFO can be used to get data related to
chips, dimms and system topology, by passing different counter request
values.
Patchset adds sysfs files to "/sys/devices/hv_gpci/interface/"
of hv_gpci pmu driver, which will expose system topology information
using H_GET_PERF_COUNTER_INFO hcall. The added sysfs files are
available for power10 and above platforms and needs root access
to read the data.
Patches 1,3,5,7,9 adds sysfs interface files to the hv_gpci
pmu driver, to get system topology information.
List of added sysfs files:
-> processor_bus_topology (Counter request value : 0xD0)
-> processor_config (Counter request value : 0x90)
-> affinity_domain_via_virtual_processor (Counter request value : 0xA0)
-> affinity_domain_via_domain (Counter request value : 0xB0)
-> affinity_domain_via_partition (Counter request value : 0xB1)
Patches 2,4,6,8,10 adds details of the newly added hv_gpci
interface files listed above in the ABI documentation.
Patches 2,4,6,8,10 adds details of the newly added hv_gpci
interface files listed above in the ABI documentation.
Changelog:
v2 -> v3
-> Make nit changes in documentation patches as suggested by Randy Dunlap.
v1 -> v2
-> Incase the HCALL fails with errors that can be resolve during runtime,
then only add sysinfo interface attributes to the interface_attrs
attribute array. Even if one of the counter request value HCALL fails,
don't add any sysinfo attribute to the interface_attrs attribute array.
Add the code changes to make sure sysinfo interface added only when all
the requirements met as suggested by Michael Ellerman.
-> Make changes in documentation, adds detail of errors type
which can be resolved at runtime as suggested by Michael Ellerman.
-> Add new enum and sysinfo_counter_request array to get required
counter request value in hv-gpci.c file.
-> Move the macros for interface attribute array index to hv-gpci.c, as
these macros currently only used in hv-gpci.c file.
Kajol Jain (10):
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show
processor bus topology information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
processor_bus_topology sysfs interface file
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show
processor config information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
processor_config sysfs interface file
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
domain via virtual processor information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
affinity_domain_via_virtual_processor sysfs interface file
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
domain via domain information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
affinity_domain_via_domain sysfs interface file
powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
domain via partition information
docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
affinity_domain_via_partition sysfs interface file
.../sysfs-bus-event_source-devices-hv_gpci | 160 +++++
arch/powerpc/perf/hv-gpci.c | 640 +++++++++++++++++-
2 files changed, 798 insertions(+), 2 deletions(-)
--
2.39.3
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH v3 00/10] Add sysfs interface files to hv_gpci device to expose system information
2023-07-19 6:12 Kajol Jain
@ 2023-07-25 5:53 ` Athira Rajeev
0 siblings, 0 replies; 3+ messages in thread
From: Athira Rajeev @ 2023-07-25 5:53 UTC (permalink / raw)
To: Kajol Jain, linuxppc-dev
Cc: Michael Ellerman, Madhavan Srinivasan, disgoel, linux-perf-users,
LKML, Randy Dunlap
> On 19-Jul-2023, at 11:42 AM, Kajol Jain <kjain@linux.ibm.com> wrote:
>
> The hcall H_GET_PERF_COUNTER_INFO can be used to get data related to
> chips, dimms and system topology, by passing different counter request
> values.
> Patchset adds sysfs files to "/sys/devices/hv_gpci/interface/"
> of hv_gpci pmu driver, which will expose system topology information
> using H_GET_PERF_COUNTER_INFO hcall. The added sysfs files are
> available for power10 and above platforms and needs root access
> to read the data.
>
> Patches 1,3,5,7,9 adds sysfs interface files to the hv_gpci
> pmu driver, to get system topology information.
>
> List of added sysfs files:
> -> processor_bus_topology (Counter request value : 0xD0)
> -> processor_config (Counter request value : 0x90)
> -> affinity_domain_via_virtual_processor (Counter request value : 0xA0)
> -> affinity_domain_via_domain (Counter request value : 0xB0)
> -> affinity_domain_via_partition (Counter request value : 0xB1)
>
> Patches 2,4,6,8,10 adds details of the newly added hv_gpci
> interface files listed above in the ABI documentation.
>
> Patches 2,4,6,8,10 adds details of the newly added hv_gpci
> interface files listed above in the ABI documentation.
Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Thanks
Athira
>
> Changelog:
> v2 -> v3
> -> Make nit changes in documentation patches as suggested by Randy Dunlap.
>
> v1 -> v2
> -> Incase the HCALL fails with errors that can be resolve during runtime,
> then only add sysinfo interface attributes to the interface_attrs
> attribute array. Even if one of the counter request value HCALL fails,
> don't add any sysinfo attribute to the interface_attrs attribute array.
> Add the code changes to make sure sysinfo interface added only when all
> the requirements met as suggested by Michael Ellerman.
> -> Make changes in documentation, adds detail of errors type
> which can be resolved at runtime as suggested by Michael Ellerman.
> -> Add new enum and sysinfo_counter_request array to get required
> counter request value in hv-gpci.c file.
> -> Move the macros for interface attribute array index to hv-gpci.c, as
> these macros currently only used in hv-gpci.c file.
>
> Kajol Jain (10):
> powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show
> processor bus topology information
> docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
> processor_bus_topology sysfs interface file
> powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show
> processor config information
> docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
> processor_config sysfs interface file
> powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
> domain via virtual processor information
> docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
> affinity_domain_via_virtual_processor sysfs interface file
> powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
> domain via domain information
> docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
> affinity_domain_via_domain sysfs interface file
> powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity
> domain via partition information
> docs: ABI: sysfs-bus-event_source-devices-hv_gpci: Document
> affinity_domain_via_partition sysfs interface file
>
> .../sysfs-bus-event_source-devices-hv_gpci | 160 +++++
> arch/powerpc/perf/hv-gpci.c | 640 +++++++++++++++++-
> 2 files changed, 798 insertions(+), 2 deletions(-)
>
> --
> 2.39.3
>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-07-25 5:54 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-07-19 6:06 [PATCH v3 00/10] Add sysfs interface files to hv_gpci device to expose system information Kajol Jain
-- strict thread matches above, loose matches on Subject: below --
2023-07-19 6:12 Kajol Jain
2023-07-25 5:53 ` Athira Rajeev
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).