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powerpc/perf/hv-24x7: Move cpumask file to top folder of hv-24x7 driver 

Commit 792f73f747 ("powerpc/hv-24x7: Add sysfs files inside hv-24x7
device to show cpumask") added cpumask file as part of hv-24x7 driver
inside the interface folder. The cpumask file is supposed to be in the
top folder of the PMU driver in order to make hotplug work.

This patch fixes that issue and creates new group 'cpumask_attr_group'
to add cpumask file and make sure it added in top folder.

  command:# cat /sys/devices/hv_24x7/cpumask
  0

Fixes: 792f73f747 ("powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show cpumask")
Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200821080610.123997-1-kjain@linux.ibm.com
This commit is contained in:
Kajol Jain 2020-08-21 13:36:10 +05:30 committed by Michael Ellerman
parent 541cebb51f
commit 64ef8f2c47
2 changed files with 11 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/ABI/testing/sysfs-bus-event_source-devices-hv_24x7
View File

@ -43,7 +43,7 @@ Description: read only
This sysfs interface exposes the number of cores per chip
present in the system.
What: /sys/devices/hv_24x7/interface/cpumask
What: /sys/devices/hv_24x7/cpumask
Date: July 2020
Contact: Linux on PowerPC Developer List <linuxppc-dev@lists.ozlabs.org>
Description: read only

11
arch/powerpc/perf/hv-24x7.c
View File

@ -1128,6 +1128,15 @@ static struct bin_attribute *if_bin_attrs[] = {
NULL,
};
static struct attribute *cpumask_attrs[] = {
&dev_attr_cpumask.attr,
NULL,
};
static struct attribute_group cpumask_attr_group = {
.attrs = cpumask_attrs,
};
static struct attribute *if_attrs[] = {
&dev_attr_catalog_len.attr,
&dev_attr_catalog_version.attr,
@ -1135,7 +1144,6 @@ static struct attribute *if_attrs[] = {
&dev_attr_sockets.attr,
&dev_attr_chipspersocket.attr,
&dev_attr_coresperchip.attr,
&dev_attr_cpumask.attr,
NULL,
};
@ -1151,6 +1159,7 @@ static const struct attribute_group *attr_groups[] = {
&event_desc_group,
&event_long_desc_group,
&if_group,
&cpumask_attr_group,
NULL,
};