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