powerpc/perf/hv-24x7: Display domain indices in sysfs (d34171e8) · Commits · 戴 / test

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

+41 −0

Original line number	Diff line number	Diff line
		@@ -68,6 +68,24 @@ static bool is_physical_domain(unsigned domain)
		}
		}

		static const char *domain_name(unsigned domain)
		{
		if (!domain_is_valid(domain))
		return NULL;

		switch (domain) {
		case HV_PERF_DOMAIN_PHYS_CHIP: return "Physical Chip";
		case HV_PERF_DOMAIN_PHYS_CORE: return "Physical Core";
		case HV_PERF_DOMAIN_VCPU_HOME_CORE: return "VCPU Home Core";
		case HV_PERF_DOMAIN_VCPU_HOME_CHIP: return "VCPU Home Chip";
		case HV_PERF_DOMAIN_VCPU_HOME_NODE: return "VCPU Home Node";
		case HV_PERF_DOMAIN_VCPU_REMOTE_NODE: return "VCPU Remote Node";
		}

		WARN_ON_ONCE(domain);
		return NULL;
		}

		static bool catalog_entry_domain_is_valid(unsigned domain)
		{
		return is_physical_domain(domain);
		@@ -969,6 +987,27 @@ e_free:
		return ret;
		}

		static ssize_t domains_show(struct device dev, struct device_attribute attr,
		char *page)
		{
		int d, n, count = 0;
		const char *str;

		for (d = 0; d < HV_PERF_DOMAIN_MAX; d++) {
		str = domain_name(d);
		if (!str)
		continue;

		n = sprintf(page, "%d: %s\n", d, str);
		if (n < 0)
		break;

		count += n;
		page += n;
		}
		return count;
		}

		#define PAGE_0_ATTR(_name, _fmt, _expr) \
		static ssize_t _name##_show(struct device *dev, \
		struct device_attribute *dev_attr, \
		@@ -997,6 +1036,7 @@ PAGE_0_ATTR(catalog_version, "%lld\n",
		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 struct bin_attribute *if_bin_attrs[] = {
		&bin_attr_catalog,
		@@ -1006,6 +1046,7 @@ static struct bin_attribute *if_bin_attrs[] = {
		static struct attribute *if_attrs[] = {
		&dev_attr_catalog_len.attr,
		&dev_attr_catalog_version.attr,
		&dev_attr_domains.attr,
		NULL,
		};

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

+1 −0

Original line number	Diff line number	Diff line
		@@ -7,6 +7,7 @@ enum hv_perf_domains {
		#define DOMAIN(n, v, x, c) HV_PERF_DOMAIN_##n = v,
		#include "hv-24x7-domains.h"
		#undef DOMAIN
		HV_PERF_DOMAIN_MAX,
		};

		struct hv_24x7_request {

Admin message