#ifndef _MEM_H
#define _MEM_H
#include "config.h"
#include "tst_test.h"
#include "ksm_helper.h"
#if defined(__powerpc__) || defined(__powerpc64__)
#define MAXNODES 256
#else
#define MAXNODES 512
#endif
#define MB (1UL<<20)
#define KB (1UL<<10)
#define PATH_SYS_SYSTEM "/sys/devices/system"
#define PATH_SYSVM "/proc/sys/vm/"
#define PATH_MEMINFO "/proc/meminfo"
#define BITS_PER_LONG (8 * sizeof(long))
static inline void set_node(unsigned long *array, unsigned int node)
{
array[node / BITS_PER_LONG] |= 1UL << (node % BITS_PER_LONG);
}
static inline void clean_node(unsigned long *array)
{
unsigned int i;
for (i = 0; i < MAXNODES / BITS_PER_LONG; i++)
array[i] &= 0UL;
}
/* OOM */
#define LENGTH (3UL<<30)
#define TESTMEM (1UL<<30)
#define NORMAL 1
#define MLOCK 2
#define KSM 3
long overcommit;
void oom(int testcase, int lite, int retcode, int allow_sigkill);
void testoom(int mempolicy, int lite, int retcode, int allow_sigkill);
/* KSM */
void create_same_memory(int size, int num, int unit);
void test_ksm_merge_across_nodes(unsigned long nr_pages);
/* THP */
#define PATH_THP "/sys/kernel/mm/transparent_hugepage/"
#define PATH_KHPD PATH_THP "khugepaged/"
/* HUGETLB */
#define PATH_HUGEPAGES "/sys/kernel/mm/hugepages/"
#define PATH_SHMMAX "/proc/sys/kernel/shmmax"
void check_hugepage(void);
void write_memcg(void);
/* cpuset/memcg */
#define CPATH "/dev/cpuset"
#define CPATH_NEW CPATH "/1"
#define MEMCG_PATH "/dev/cgroup"
#define MEMCG_PATH_NEW MEMCG_PATH "/1"
#define MEMCG_LIMIT MEMCG_PATH_NEW "/memory.limit_in_bytes"
#define MEMCG_SW_LIMIT MEMCG_PATH_NEW "/memory.memsw.limit_in_bytes"
#if HAVE_SYS_EVENTFD_H
#define PATH_OOMCTRL MEMCG_PATH_NEW "/memory.oom_control"
#define PATH_EVTCTRL MEMCG_PATH_NEW "/cgroup.event_control"
#endif
void read_cpuset_files(char *prefix, char *filename, char *retbuf);
void write_cpuset_files(char *prefix, char *filename, char *buf);
void write_cpusets(long nd);
void mount_mem(char *name, char *fs, char *options, char *path, char *path_new);
void umount_mem(char *path, char *path_new);
/* shared */
unsigned int get_a_numa_node(void);
int path_exist(const char *path, ...);
void set_sys_tune(char *sys_file, long tune, int check);
long get_sys_tune(char *sys_file);
void update_shm_size(size_t *shm_size);
/* MMAP */
int range_is_mapped(unsigned long low, unsigned long high);
#endif