Kajol Jain a15e0d6a69 powerpc/hv_gpci: Add sysfs file inside hv_gpci device to show affinity domain via partition information
The hcall H_GET_PERF_COUNTER_INFO with counter request value as
AFFINITY_DOMAIN_INFORMATION_BY_PARTITION(0XB1), can be used to get
the system affinity domain via partition information. To expose the system
affinity domain via partition information, patch adds sysfs file called
"affinity_domain_via_partition" to the "/sys/devices/hv_gpci/interface/"
of hv_gpci pmu driver.

Add new entry for AFFINITY_DOMAIN_VIA_PAR in sysinfo_counter_request
array, which points to the counter request value
"affinity_domain_via_partition" in hv-gpci.c file. Also add a
new function called "affinity_domain_via_partition_result_parse" to parse
the hcall result and store it in output buffer.

The affinity_domain_via_partition sysfs file is only available for power10
and above platforms. Add a macro called
INTERFACE_AFFINITY_DOMAIN_VIA_PAR_ATTR, which points to the index of NULL
placeholder, for affinity_domain_via_partition attribute in
interface_attrs array. Also updated the value of INTERFACE_NULL_ATTR
macro in hv-gpci.c file.

Reviewed-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230729073455.7918-10-kjain@linux.ibm.com
2023-08-16 23:54:49 +10:00
..
2023-06-28 20:35:21 -07:00
2023-07-06 10:06:04 -07:00
2023-07-06 10:06:04 -07:00
2023-07-23 10:44:38 -07:00
2023-07-01 21:12:32 -07:00
2023-06-28 20:35:21 -07:00
2023-07-22 10:46:30 -07:00
2023-07-06 10:06:04 -07:00
2023-07-06 10:06:04 -07:00
2023-06-29 16:34:12 -07:00
2023-07-09 10:02:49 -07:00
2023-06-29 16:34:12 -07:00
2023-07-12 16:28:53 -07:00
2023-07-22 10:46:30 -07:00
2023-07-14 11:14:07 -07:00
2023-07-23 10:44:38 -07:00
2023-07-13 13:34:00 -07:00