linux-imx

// SPDX-License-Identifier: GPL-2.0+

/*

 * driver/base/topology.c - Populate sysfs with cpu topology information

 *

 * Written by: Zhang Yanmin, Intel Corporation

 *

 * Copyright (C) 2006, Intel Corp.

 *

 * All rights reserved.

 */

#include <linux/mm.h>

#include <linux/cpu.h>

#include <linux/module.h>

#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_siblings_show_map(name, mask)                \

static ssize_t name##_show(struct device *dev,              \

               struct device_attribute *attr, char *buf)    \

{                                   \

    return cpumap_print_to_pagebuf(false, buf, topology_##mask(dev->id));\

}

​

#define define_siblings_show_list(name, mask)               \

static ssize_t name##_list_show(struct device *dev,         \

                struct device_attribute *attr,      \

                char *buf)              \

{                                   \

    return cpumap_print_to_pagebuf(true, buf, topology_##mask(dev->id));\

}

​

#define define_siblings_show_func(name, mask)   \

    define_siblings_show_map(name, mask);   \

    define_siblings_show_list(name, mask)

​

define_id_show_func(physical_package_id);

static DEVICE_ATTR_RO(physical_package_id);

​

define_id_show_func(core_id);

static DEVICE_ATTR_RO(core_id);

​

define_siblings_show_func(thread_siblings, sibling_cpumask);

static DEVICE_ATTR_RO(thread_siblings);

static DEVICE_ATTR_RO(thread_siblings_list);

​

define_siblings_show_func(core_siblings, core_cpumask);

static DEVICE_ATTR_RO(core_siblings);

static DEVICE_ATTR_RO(core_siblings_list);

​

#ifdef CONFIG_SCHED_BOOK

define_id_show_func(book_id);

static DEVICE_ATTR_RO(book_id);

define_siblings_show_func(book_siblings, book_cpumask);

static DEVICE_ATTR_RO(book_siblings);

static DEVICE_ATTR_RO(book_siblings_list);

#endif

​

#ifdef CONFIG_SCHED_DRAWER

define_id_show_func(drawer_id);

static DEVICE_ATTR_RO(drawer_id);

define_siblings_show_func(drawer_siblings, drawer_cpumask);

static DEVICE_ATTR_RO(drawer_siblings);

static DEVICE_ATTR_RO(drawer_siblings_list);

#endif

​

static struct attribute *default_attrs[] = {

    &dev_attr_physical_package_id.attr,

    &dev_attr_core_id.attr,

    &dev_attr_thread_siblings.attr,

    &dev_attr_thread_siblings_list.attr,

    &dev_attr_core_siblings.attr,

    &dev_attr_core_siblings_list.attr,

#ifdef CONFIG_SCHED_BOOK

    &dev_attr_book_id.attr,

    &dev_attr_book_siblings.attr,

    &dev_attr_book_siblings_list.attr,

#endif

#ifdef CONFIG_SCHED_DRAWER

    &dev_attr_drawer_id.attr,

    &dev_attr_drawer_siblings.attr,

    &dev_attr_drawer_siblings_list.attr,

#endif

    NULL

};

​