diff options
Diffstat (limited to 'app/test/test_power_acpi_cpufreq.c')
| -rw-r--r-- | app/test/test_power_acpi_cpufreq.c | 544 |
1 files changed, 544 insertions, 0 deletions
diff --git a/app/test/test_power_acpi_cpufreq.c b/app/test/test_power_acpi_cpufreq.c new file mode 100644 index 00000000..0fb15699 --- /dev/null +++ b/app/test/test_power_acpi_cpufreq.c @@ -0,0 +1,544 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * 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 <stdint.h> +#include <unistd.h> +#include <limits.h> +#include <string.h> + +#include "test.h" + +#include <rte_power.h> + +#define TEST_POWER_LCORE_ID 2U +#define TEST_POWER_LCORE_INVALID ((unsigned)RTE_MAX_LCORE) +#define TEST_POWER_FREQS_NUM_MAX ((unsigned)RTE_MAX_LCORE_FREQS) + +#define TEST_POWER_SYSFILE_CUR_FREQ \ + "/sys/devices/system/cpu/cpu%u/cpufreq/scaling_cur_freq" + +static uint32_t total_freq_num; +static uint32_t freqs[TEST_POWER_FREQS_NUM_MAX]; + +static int +check_cur_freq(unsigned lcore_id, uint32_t idx) +{ +#define TEST_POWER_CONVERT_TO_DECIMAL 10 + FILE *f; + char fullpath[PATH_MAX]; + char buf[BUFSIZ]; + uint32_t cur_freq; + int ret = -1; + + if (snprintf(fullpath, sizeof(fullpath), + TEST_POWER_SYSFILE_CUR_FREQ, lcore_id) < 0) { + return 0; + } + f = fopen(fullpath, "r"); + if (f == NULL) { + return 0; + } + if (fgets(buf, sizeof(buf), f) == NULL) { + goto fail_get_cur_freq; + } + cur_freq = strtoul(buf, NULL, TEST_POWER_CONVERT_TO_DECIMAL); + ret = (freqs[idx] == cur_freq ? 0 : -1); + +fail_get_cur_freq: + fclose(f); + + return ret; +} + +/* Check rte_power_freqs() */ +static int +check_power_freqs(void) +{ + uint32_t ret; + + total_freq_num = 0; + memset(freqs, 0, sizeof(freqs)); + + /* test with an invalid lcore id */ + ret = rte_power_freqs(TEST_POWER_LCORE_INVALID, freqs, + TEST_POWER_FREQS_NUM_MAX); + if (ret > 0) { + printf("Unexpectedly get available freqs successfully on " + "lcore %u\n", TEST_POWER_LCORE_INVALID); + return -1; + } + + /* test with NULL buffer to save available freqs */ + ret = rte_power_freqs(TEST_POWER_LCORE_ID, NULL, + TEST_POWER_FREQS_NUM_MAX); + if (ret > 0) { + printf("Unexpectedly get available freqs successfully with " + "NULL buffer on lcore %u\n", TEST_POWER_LCORE_ID); + return -1; + } + + /* test of getting zero number of freqs */ + ret = rte_power_freqs(TEST_POWER_LCORE_ID, freqs, 0); + if (ret > 0) { + printf("Unexpectedly get available freqs successfully with " + "zero buffer size on lcore %u\n", TEST_POWER_LCORE_ID); + return -1; + } + + /* test with all valid input parameters */ + ret = rte_power_freqs(TEST_POWER_LCORE_ID, freqs, + TEST_POWER_FREQS_NUM_MAX); + if (ret == 0 || ret > TEST_POWER_FREQS_NUM_MAX) { + printf("Fail to get available freqs on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Save the total number of available freqs */ + total_freq_num = ret; + + return 0; +} + +/* Check rte_power_get_freq() */ +static int +check_power_get_freq(void) +{ + int ret; + uint32_t count; + + /* test with an invalid lcore id */ + count = rte_power_get_freq(TEST_POWER_LCORE_INVALID); + if (count < TEST_POWER_FREQS_NUM_MAX) { + printf("Unexpectedly get freq index successfully on " + "lcore %u\n", TEST_POWER_LCORE_INVALID); + return -1; + } + + count = rte_power_get_freq(TEST_POWER_LCORE_ID); + if (count >= TEST_POWER_FREQS_NUM_MAX) { + printf("Fail to get the freq index on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Check the current frequency */ + ret = check_cur_freq(TEST_POWER_LCORE_ID, count); + if (ret < 0) + return -1; + + return 0; +} + +/* Check rte_power_set_freq() */ +static int +check_power_set_freq(void) +{ + int ret; + + /* test with an invalid lcore id */ + ret = rte_power_set_freq(TEST_POWER_LCORE_INVALID, 0); + if (ret >= 0) { + printf("Unexpectedly set freq index successfully on " + "lcore %u\n", TEST_POWER_LCORE_INVALID); + return -1; + } + + /* test with an invalid freq index */ + ret = rte_power_set_freq(TEST_POWER_LCORE_ID, + TEST_POWER_FREQS_NUM_MAX); + if (ret >= 0) { + printf("Unexpectedly set an invalid freq index (%u)" + "successfully on lcore %u\n", TEST_POWER_FREQS_NUM_MAX, + TEST_POWER_LCORE_ID); + return -1; + } + + /** + * test with an invalid freq index which is right one bigger than + * total number of freqs + */ + ret = rte_power_set_freq(TEST_POWER_LCORE_ID, total_freq_num); + if (ret >= 0) { + printf("Unexpectedly set an invalid freq index (%u)" + "successfully on lcore %u\n", total_freq_num, + TEST_POWER_LCORE_ID); + return -1; + } + ret = rte_power_set_freq(TEST_POWER_LCORE_ID, total_freq_num - 1); + if (ret < 0) { + printf("Fail to set freq index on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Check the current frequency */ + ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 1); + if (ret < 0) + return -1; + + return 0; +} + +/* Check rte_power_freq_down() */ +static int +check_power_freq_down(void) +{ + int ret; + + /* test with an invalid lcore id */ + ret = rte_power_freq_down(TEST_POWER_LCORE_INVALID); + if (ret >= 0) { + printf("Unexpectedly scale down successfully the freq on " + "lcore %u\n", TEST_POWER_LCORE_INVALID); + return -1; + } + + /* Scale down to min and then scale down one step */ + ret = rte_power_freq_min(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale down the freq to min on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + ret = rte_power_freq_down(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale down the freq on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Check the current frequency */ + ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 1); + if (ret < 0) + return -1; + + /* Scale up to max and then scale down one step */ + ret = rte_power_freq_max(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale up the freq to max on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + ret = rte_power_freq_down(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale down the freq on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Check the current frequency */ + ret = check_cur_freq(TEST_POWER_LCORE_ID, 1); + if (ret < 0) + return -1; + + return 0; +} + +/* Check rte_power_freq_up() */ +static int +check_power_freq_up(void) +{ + int ret; + + /* test with an invalid lcore id */ + ret = rte_power_freq_up(TEST_POWER_LCORE_INVALID); + if (ret >= 0) { + printf("Unexpectedly scale up successfully the freq on %u\n", + TEST_POWER_LCORE_INVALID); + return -1; + } + + /* Scale down to min and then scale up one step */ + ret = rte_power_freq_min(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale down the freq to min on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + ret = rte_power_freq_up(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale up the freq on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Check the current frequency */ + ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 2); + if (ret < 0) + return -1; + + /* Scale up to max and then scale up one step */ + ret = rte_power_freq_max(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale up the freq to max on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + ret = rte_power_freq_up(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale up the freq on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Check the current frequency */ + ret = check_cur_freq(TEST_POWER_LCORE_ID, 0); + if (ret < 0) + return -1; + + return 0; +} + +/* Check rte_power_freq_max() */ +static int +check_power_freq_max(void) +{ + int ret; + + /* test with an invalid lcore id */ + ret = rte_power_freq_max(TEST_POWER_LCORE_INVALID); + if (ret >= 0) { + printf("Unexpectedly scale up successfully the freq to max on " + "lcore %u\n", TEST_POWER_LCORE_INVALID); + return -1; + } + ret = rte_power_freq_max(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale up the freq to max on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Check the current frequency */ + ret = check_cur_freq(TEST_POWER_LCORE_ID, 0); + if (ret < 0) + return -1; + + return 0; +} + +/* Check rte_power_freq_min() */ +static int +check_power_freq_min(void) +{ + int ret; + + /* test with an invalid lcore id */ + ret = rte_power_freq_min(TEST_POWER_LCORE_INVALID); + if (ret >= 0) { + printf("Unexpectedly scale down successfully the freq to min " + "on lcore %u\n", TEST_POWER_LCORE_INVALID); + return -1; + } + ret = rte_power_freq_min(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Fail to scale down the freq to min on lcore %u\n", + TEST_POWER_LCORE_ID); + return -1; + } + + /* Check the current frequency */ + ret = check_cur_freq(TEST_POWER_LCORE_ID, total_freq_num - 1); + if (ret < 0) + return -1; + + return 0; +} + +static int +test_power_acpi_cpufreq(void) +{ + int ret = -1; + enum power_management_env env; + + ret = rte_power_set_env(PM_ENV_ACPI_CPUFREQ); + if (ret != 0) { + printf("Failed on setting environment to PM_ENV_ACPI_CPUFREQ, this " + "may occur if environment is not configured correctly or " + " operating in another valid Power management environment\n"); + return -1; + } + + /* Test environment configuration */ + env = rte_power_get_env(); + if (env != PM_ENV_ACPI_CPUFREQ) { + printf("Unexpectedly got an environment other than ACPI cpufreq\n"); + goto fail_all; + } + + /* verify that function pointers are not NULL */ + if (rte_power_freqs == NULL) { + printf("rte_power_freqs should not be NULL, environment has not been " + "initialised\n"); + goto fail_all; + } + if (rte_power_get_freq == NULL) { + printf("rte_power_get_freq should not be NULL, environment has not " + "been initialised\n"); + goto fail_all; + } + if (rte_power_set_freq == NULL) { + printf("rte_power_set_freq should not be NULL, environment has not " + "been initialised\n"); + goto fail_all; + } + if (rte_power_freq_up == NULL) { + printf("rte_power_freq_up should not be NULL, environment has not " + "been initialised\n"); + goto fail_all; + } + if (rte_power_freq_down == NULL) { + printf("rte_power_freq_down should not be NULL, environment has not " + "been initialised\n"); + goto fail_all; + } + if (rte_power_freq_max == NULL) { + printf("rte_power_freq_max should not be NULL, environment has not " + "been initialised\n"); + goto fail_all; + } + if (rte_power_freq_min == NULL) { + printf("rte_power_freq_min should not be NULL, environment has not " + "been initialised\n"); + goto fail_all; + } + + /* test of init power management for an invalid lcore */ + ret = rte_power_init(TEST_POWER_LCORE_INVALID); + if (ret == 0) { + printf("Unexpectedly initialise power management successfully " + "for lcore %u\n", TEST_POWER_LCORE_INVALID); + rte_power_unset_env(); + return -1; + } + + /* Test initialisation of a valid lcore */ + ret = rte_power_init(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Cannot initialise power management for lcore %u, this " + "may occur if environment is not configured " + "correctly(APCI cpufreq) or operating in another valid " + "Power management environment\n", TEST_POWER_LCORE_ID); + rte_power_unset_env(); + return -1; + } + + /** + * test of initialising power management for the lcore which has + * been initialised + */ + ret = rte_power_init(TEST_POWER_LCORE_ID); + if (ret == 0) { + printf("Unexpectedly init successfully power twice on " + "lcore %u\n", TEST_POWER_LCORE_ID); + goto fail_all; + } + + ret = check_power_freqs(); + if (ret < 0) + goto fail_all; + + if (total_freq_num < 2) { + rte_power_exit(TEST_POWER_LCORE_ID); + printf("Frequency can not be changed due to CPU itself\n"); + rte_power_unset_env(); + return 0; + } + + ret = check_power_get_freq(); + if (ret < 0) + goto fail_all; + + ret = check_power_set_freq(); + if (ret < 0) + goto fail_all; + + ret = check_power_freq_down(); + if (ret < 0) + goto fail_all; + + ret = check_power_freq_up(); + if (ret < 0) + goto fail_all; + + ret = check_power_freq_max(); + if (ret < 0) + goto fail_all; + + ret = check_power_freq_min(); + if (ret < 0) + goto fail_all; + + ret = rte_power_exit(TEST_POWER_LCORE_ID); + if (ret < 0) { + printf("Cannot exit power management for lcore %u\n", + TEST_POWER_LCORE_ID); + rte_power_unset_env(); + return -1; + } + + /** + * test of exiting power management for the lcore which has been exited + */ + ret = rte_power_exit(TEST_POWER_LCORE_ID); + if (ret == 0) { + printf("Unexpectedly exit successfully power management twice " + "on lcore %u\n", TEST_POWER_LCORE_ID); + rte_power_unset_env(); + return -1; + } + + /* test of exit power management for an invalid lcore */ + ret = rte_power_exit(TEST_POWER_LCORE_INVALID); + if (ret == 0) { + printf("Unpectedly exit power management successfully for " + "lcore %u\n", TEST_POWER_LCORE_INVALID); + rte_power_unset_env(); + return -1; + } + rte_power_unset_env(); + return 0; + +fail_all: + rte_power_exit(TEST_POWER_LCORE_ID); + rte_power_unset_env(); + return -1; +} + +static struct test_command power_acpi_cpufreq_cmd = { + .command = "power_acpi_cpufreq_autotest", + .callback = test_power_acpi_cpufreq, +}; +REGISTER_TEST_COMMAND(power_acpi_cpufreq_cmd); |