Add test programs for lage page

Tests arm64 specific, contiguous bit based large pages as well.

Change-Id: I09edad8cfde6c23a259f1f32cfc97974d9cb63c3
This commit is contained in:
Masamichi Takagi
2018-12-07 19:28:51 +09:00
committed by Dominique Martinet
parent 100754f556
commit 9f7425c152
86 changed files with 5024 additions and 0 deletions

View File

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#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/mman.h>
#include "../util.h"
#define PAGE_SHIFT_2M 21
#define PAGE_SIZE_2M (1UL << PAGE_SHIFT_2M)
#define PAGE_SHIFT_512M 29
#define PAGE_SIZE_512M (1UL << PAGE_SHIFT_512M)
int trial_num;
int mmap_thp(size_t page_size)
{
char *addr_mmap;
addr_mmap = mmap(0, page_size,
PROT_READ | PROT_WRITE,
MAP_ANONYMOUS | MAP_PRIVATE,
-1, 0);
NG(addr_mmap != (void *)-1, "mmap failed\n");
addr_mmap[0] = 'z';
NG(__atomic_load_n(addr_mmap, __ATOMIC_SEQ_CST) == 'z',
"memory access failed\n");
printf("large page request, trial#: %03d, addr: %016lx, size: %ld\n",
trial_num++, (unsigned long)addr_mmap, page_size);
munmap(addr_mmap, page_size);
return 0;
fn_fail:
return 1;
}
int main(int argc, char **argv)
{
int ret;
ret = mmap_thp(PAGE_SIZE_2M);
NG(ret == 0, "mmap_thp failed, size: %ld\n",
PAGE_SIZE_2M);
ret = mmap_thp(PAGE_SIZE_512M);
NG(ret == 0, "mmap_thp failed, size: %ld\n",
PAGE_SIZE_512M);
return 0;
fn_fail:
return 1;
}