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/*
* Copyright (C) 2013 Red Hat, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Authors: Peter Schiffer <pschiffe@redhat.com>
*/
#ifndef SYSFS_H_
#define SYSFS_H_
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include <errno.h>
#include <limits.h>
#include "utils.h"
#define SYSFS_CPU_PATH "/sys/devices/system/cpu"
/* Processor cache from sysfs. */
typedef struct _SysfsCpuCache {
char *id; /* ID */
unsigned size; /* Cache Size */
char *name; /* Cache Name */
unsigned level; /* Cache Level */
char *type; /* Cache Type (Data, Instruction, Unified..) */
unsigned ways_of_assoc; /* Number of ways of associativity */
unsigned line_size; /* Cache Line Size */
} SysfsCpuCache;
/*
* Get array of processor caches from sysfs.
* @param caches array of cpu caches, this function will allocate necessary
* memory, but caller is responsible for freeing it
* @param caches_nb number of caches in caches
* @return 0 if success, negative value otherwise
*/
short sysfs_get_cpu_caches(SysfsCpuCache **caches, unsigned *caches_nb);
/*
* Free array of cpu cache structures.
* @param caches array of caches
* @param caches_nb number of caches
*/
void sysfs_free_cpu_caches(SysfsCpuCache **caches, unsigned *caches_nb);
#endif /* SYSFS_H_ */
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