Commit 60beb65d authored by Kajol Jain's avatar Kajol Jain Committed by Michael Ellerman
Browse files

powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show processor details 



To expose the system dependent parameter like total number of
sockets and numbers of chips per socket, patch adds two sysfs files.
"sockets" and "chips" are added to /sys/devices/hv_24x7/interface/
of the "hv_24x7" pmu.

Signed-off-by: default avatarKajol Jain <kjain@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200525104308.9814-4-kjain@linux.ibm.com
parent 8ba21426

arch/powerpc/perf/hv-24x7.c

+24 −0
Original line number Diff line number Diff line
@@ -446,6 +446,24 @@ static ssize_t device_show_string(struct device *dev, 
	return sprintf(buf, "%s\n", (char *)d->var);

}



static ssize_t sockets_show(struct device *dev,

			    struct device_attribute *attr, char *buf)

{

	return sprintf(buf, "%d\n", phys_sockets);

}



static ssize_t chipspersocket_show(struct device *dev,

				   struct device_attribute *attr, char *buf)

{

	return sprintf(buf, "%d\n", phys_chipspersocket);

}



static ssize_t coresperchip_show(struct device *dev,

				 struct device_attribute *attr, char *buf)

{

	return sprintf(buf, "%d\n", phys_coresperchip);

}



static struct attribute *device_str_attr_create_(char *name, char *str)

{

	struct dev_ext_attribute *attr = kzalloc(sizeof(*attr), GFP_KERNEL);
@@ -1092,6 +1110,9 @@ PAGE_0_ATTR(catalog_len, "%lld\n", 
		(unsigned long long)be32_to_cpu(page_0->length) * 4096);

static BIN_ATTR_RO(catalog, 0/* real length varies */);

static DEVICE_ATTR_RO(domains);

static DEVICE_ATTR_RO(sockets);

static DEVICE_ATTR_RO(chipspersocket);

static DEVICE_ATTR_RO(coresperchip);



static struct bin_attribute *if_bin_attrs[] = {

	&bin_attr_catalog,
@@ -1102,6 +1123,9 @@ static struct attribute *if_attrs[] = { 
	&dev_attr_catalog_len.attr,

	&dev_attr_catalog_version.attr,

	&dev_attr_domains.attr,

	&dev_attr_sockets.attr,

	&dev_attr_chipspersocket.attr,

	&dev_attr_coresperchip.attr,

	NULL,

};