From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file
---
kernel/drivers/base/topology.c | 34 ++++++++++++++++++++++++++++------
1 files changed, 28 insertions(+), 6 deletions(-)
diff --git a/kernel/drivers/base/topology.c b/kernel/drivers/base/topology.c
index 5fd9f16..4d254fc 100644
--- a/kernel/drivers/base/topology.c
+++ b/kernel/drivers/base/topology.c
@@ -14,11 +14,11 @@
#include <linux/hardirq.h>
#include <linux/topology.h>
-#define define_id_show_func(name) \
-static ssize_t name##_show(struct device *dev, \
- struct device_attribute *attr, char *buf) \
-{ \
- return sprintf(buf, "%d\n", topology_##name(dev->id)); \
+#define define_id_show_func(name) \
+static ssize_t name##_show(struct device *dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ return sysfs_emit(buf, "%d\n", topology_##name(dev->id)); \
}
#define define_siblings_show_map(name, mask) \
@@ -43,6 +43,9 @@
define_id_show_func(physical_package_id);
static DEVICE_ATTR_RO(physical_package_id);
+define_id_show_func(die_id);
+static DEVICE_ATTR_RO(die_id);
+
define_id_show_func(core_id);
static DEVICE_ATTR_RO(core_id);
@@ -50,9 +53,21 @@
static DEVICE_ATTR_RO(thread_siblings);
static DEVICE_ATTR_RO(thread_siblings_list);
+define_siblings_show_func(core_cpus, sibling_cpumask);
+static DEVICE_ATTR_RO(core_cpus);
+static DEVICE_ATTR_RO(core_cpus_list);
+
define_siblings_show_func(core_siblings, core_cpumask);
static DEVICE_ATTR_RO(core_siblings);
static DEVICE_ATTR_RO(core_siblings_list);
+
+define_siblings_show_func(die_cpus, die_cpumask);
+static DEVICE_ATTR_RO(die_cpus);
+static DEVICE_ATTR_RO(die_cpus_list);
+
+define_siblings_show_func(package_cpus, core_cpumask);
+static DEVICE_ATTR_RO(package_cpus);
+static DEVICE_ATTR_RO(package_cpus_list);
#ifdef CONFIG_SCHED_BOOK
define_id_show_func(book_id);
@@ -72,11 +87,18 @@
static struct attribute *default_attrs[] = {
&dev_attr_physical_package_id.attr,
+ &dev_attr_die_id.attr,
&dev_attr_core_id.attr,
&dev_attr_thread_siblings.attr,
&dev_attr_thread_siblings_list.attr,
+ &dev_attr_core_cpus.attr,
+ &dev_attr_core_cpus_list.attr,
&dev_attr_core_siblings.attr,
&dev_attr_core_siblings_list.attr,
+ &dev_attr_die_cpus.attr,
+ &dev_attr_die_cpus_list.attr,
+ &dev_attr_package_cpus.attr,
+ &dev_attr_package_cpus_list.attr,
#ifdef CONFIG_SCHED_BOOK
&dev_attr_book_id.attr,
&dev_attr_book_siblings.attr,
@@ -111,7 +133,7 @@
return 0;
}
-static int topology_sysfs_init(void)
+static int __init topology_sysfs_init(void)
{
return cpuhp_setup_state(CPUHP_TOPOLOGY_PREPARE,
"base/topology:prepare", topology_add_dev,
--
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