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Diffstat (limited to 'src/isa-l/mem/mem_zero_detect_test.c')
| -rw-r--r-- | src/isa-l/mem/mem_zero_detect_test.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/src/isa-l/mem/mem_zero_detect_test.c b/src/isa-l/mem/mem_zero_detect_test.c new file mode 100644 index 000000000..12d5f4bdb --- /dev/null +++ b/src/isa-l/mem/mem_zero_detect_test.c @@ -0,0 +1,226 @@ +/********************************************************************** + Copyright(c) 2011-2018 Intel Corporation All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + * Neither the name of Intel Corporation nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +**********************************************************************/ + +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <limits.h> +#include "mem_routines.h" +#include "types.h" + +#define TEST_MEM 10*1024*1024 +#define TEST_LEN 8*1024 +#define RAND_ALIGN 32 +#define BORDER_BYTES (5*RAND_ALIGN + 7) + +#ifndef RANDOMS +# define RANDOMS 2000 +#endif +#ifndef TEST_SEED +# define TEST_SEED 0x1234 +#endif + +int main(int argc, char *argv[]) +{ + int i, j, sign; + long long r, l; + void *buf; + unsigned char *a; + int failures = 0, ret_neg = 1; + + printf("mem_zero_detect_test %d bytes, %d randoms, seed=0x%x ", TEST_MEM, RANDOMS, + TEST_SEED); + if (posix_memalign(&buf, 64, TEST_MEM)) { + printf("alloc error: Fail"); + return -1; + } + + srand(TEST_SEED); + + // Test full zero buffer + memset(buf, 0, TEST_MEM); + failures = isal_zero_detect(buf, TEST_MEM); + + if (failures) { + printf("Fail large buf test\n"); + return failures; + } + putchar('.'); + + // Test small buffers + for (i = 0; i < TEST_LEN; i++) { + failures |= isal_zero_detect(buf, i); + if (failures) { + printf("Fail len=%d\n", i); + return failures; + } + } + putchar('.'); + + // Test small buffers near end of alloc region + a = buf; + for (i = 0; i < TEST_LEN; i++) + failures |= isal_zero_detect(&a[TEST_LEN - i], i); + + if (failures) { + printf("Fail:\n"); + return failures; + } + putchar('.'); + + // Test for detect non zero + a[TEST_MEM / 2] = 1; + ret_neg = isal_zero_detect(a, TEST_MEM); + if (ret_neg == 0) { + printf("Fail on not detect\n"); + return -1; + } + a[TEST_MEM / 2] = 0; + putchar('.'); + + // Test various non-zero offsets + for (i = 0; i < BORDER_BYTES; i++) { + for (j = 0; j < CHAR_BIT; j++) { + a[i] = 1 << j; + ret_neg = isal_zero_detect(a, TEST_MEM); + if (ret_neg == 0) { + printf("Fail on not detect offsets %d, %d\n", i, j); + return -1; + } + a[i] = 0; + } + } + putchar('.'); + fflush(0); + + // Test random non-zero offsets + for (i = 0; i < RANDOMS; i++) { + r = rand(); + r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1)); + if (r >= TEST_LEN) + continue; + + a[r] = 1 << (r & (CHAR_BIT - 1)); + ret_neg = isal_zero_detect(a, TEST_MEM); + if (ret_neg == 0) { + printf("Fail on not detect rand %d, e=%lld\n", i, r); + return -1; + } + a[r] = 0; + } + putchar('.'); + fflush(0); + + // Test putting non-zero byte at end of buffer + for (i = 1; i < BORDER_BYTES; i++) { + for (j = 0; j < CHAR_BIT; j++) { + a[TEST_MEM - i] = 1 << j; + ret_neg = isal_zero_detect(a, TEST_MEM); + if (ret_neg == 0) { + printf("Fail on not detect rand offset=%d, idx=%d\n", i, j); + return -1; + } + a[TEST_MEM - i] = 0; + } + } + putchar('.'); + + // Test various size buffers and non-zero offsets + for (l = 1; l < TEST_LEN; l++) { + for (i = 0; i < l + BORDER_BYTES; i++) { + failures = isal_zero_detect(a, l); + + if (failures) { + printf("Fail on detect non-zero with l=%lld\n", l); + return -1; + } + + a[i] = 1; + ret_neg = isal_zero_detect(a, l); + + if ((i < l) && (ret_neg == 0)) { + printf("Fail on non-zero buffer l=%lld err=%d\n", l, i); + return -1; + } + if ((i >= l) && (ret_neg != 0)) { + printf("Fail on bad pass detect l=%lld err=%d\n", l, i); + return -1; + } + a[i] = 0; + } + } + putchar('.'); + + // Test random test size and non-zero error offsets + for (i = 0; i < RANDOMS; i++) { + r = rand(); + r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1)); + l = r + 1 + (rand() & (CHAR_BIT - 1)); + a[r] = 1 << (r & (CHAR_BIT - 1)); + ret_neg = isal_zero_detect(a, l); + if (ret_neg == 0) { + printf("Fail on not detect rand %d, l=%lld, e=%lld\n", i, l, r); + return -1; + } + a[r] = 0; + } + putchar('.'); + fflush(0); + + // Test combinations of zero and non-zero buffers + for (i = 0; i < RANDOMS; i++) { + r = rand(); + r = (r % TEST_LEN) ^ (r & (RAND_ALIGN - 1)); + sign = rand() & 1 ? 1 : -1; + l = r + sign * (rand() & (2 * RAND_ALIGN - 1)); + + if ((l >= TEST_LEN) || (l < 0) || (r >= TEST_LEN)) + continue; + + a[r] = 1 << (r & (CHAR_BIT - 1)); + ret_neg = isal_zero_detect(a, l); + + if ((r < l) && (ret_neg == 0)) { + printf("Fail on non-zero rand buffer %d, l=%lld, e=%lld\n", i, l, r); + return -1; + } + if ((r >= l) && (ret_neg != 0)) { + printf("Fail on bad pass zero detect rand %d, l=%lld, e=%lld\n", i, l, + r); + return -1; + } + + a[r] = 0; + } + putchar('.'); + fflush(0); + + printf(failures == 0 ? " Pass\n" : " Fail\n"); + return failures; +} |