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/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Test thermal engine.
*/
#include "common.h"
#include "console.h"
#include "fan.h"
#include "hooks.h"
#include "host_command.h"
#include "printf.h"
#include "temp_sensor.h"
#include "test_util.h"
#include "thermal.h"
#include "timer.h"
#include "util.h"
/*****************************************************************************/
/* Exported data */
struct ec_thermal_config thermal_params[TEMP_SENSOR_COUNT];
/* The tests below make some assumptions. */
BUILD_ASSERT(TEMP_SENSOR_COUNT == 4);
BUILD_ASSERT(EC_TEMP_THRESH_COUNT == 3);
/*****************************************************************************/
/* Mock functions */
static int mock_temp[TEMP_SENSOR_COUNT];
static int host_throttled;
static int cpu_throttled;
static int cpu_shutdown;
static int fan_pct;
static int no_temps_read;
int dummy_temp_get_val(int idx, int *temp_ptr)
{
if (mock_temp[idx] >= 0) {
*temp_ptr = mock_temp[idx];
return EC_SUCCESS;
}
return EC_ERROR_NOT_POWERED;
}
void chipset_force_shutdown(void)
{
cpu_shutdown = 1;
}
void chipset_throttle_cpu(int throttled)
{
cpu_throttled = throttled;
}
void host_throttle_cpu(int throttled)
{
host_throttled = throttled;
}
void pwm_fan_set_percent_needed(int pct)
{
fan_pct = pct;
}
void smi_sensor_failure_warning(void)
{
no_temps_read = 1;
}
/*****************************************************************************/
/* Test utilities */
static void set_temps(int t0, int t1, int t2, int t3)
{
mock_temp[0] = t0;
mock_temp[1] = t1;
mock_temp[2] = t2;
mock_temp[3] = t3;
}
static void all_temps(int t)
{
set_temps(t, t, t, t);
}
static void reset_mocks(void)
{
/* Ignore all sensors */
memset(thermal_params, 0, sizeof(thermal_params));
/* All sensors report error anyway */
set_temps(-1, -1 , -1, -1);
/* Reset expectations */
host_throttled = 0;
cpu_throttled = 0;
cpu_shutdown = 0;
fan_pct = 0;
no_temps_read = 0;
}
/*****************************************************************************/
/* Tests */
static int test_init_val(void)
{
reset_mocks();
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
TEST_ASSERT(fan_pct == 0);
TEST_ASSERT(no_temps_read);
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
TEST_ASSERT(fan_pct == 0);
TEST_ASSERT(no_temps_read);
return EC_SUCCESS;
}
static int test_sensors_can_be_read(void)
{
reset_mocks();
mock_temp[2] = 100;
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
TEST_ASSERT(fan_pct == 0);
TEST_ASSERT(no_temps_read == 0);
return EC_SUCCESS;
}
static int test_one_fan(void)
{
reset_mocks();
thermal_params[2].temp_fan_off = 100;
thermal_params[2].temp_fan_max = 200;
all_temps(50);
sleep(2);
TEST_ASSERT(fan_pct == 0);
all_temps(100);
sleep(2);
TEST_ASSERT(fan_pct == 0);
all_temps(101);
sleep(2);
TEST_ASSERT(fan_pct == 1);
all_temps(130);
sleep(2);
TEST_ASSERT(fan_pct == 30);
all_temps(150);
sleep(2);
TEST_ASSERT(fan_pct == 50);
all_temps(170);
sleep(2);
TEST_ASSERT(fan_pct == 70);
all_temps(200);
sleep(2);
TEST_ASSERT(fan_pct == 100);
all_temps(300);
sleep(2);
TEST_ASSERT(fan_pct == 100);
return EC_SUCCESS;
}
static int test_two_fans(void)
{
reset_mocks();
thermal_params[1].temp_fan_off = 120;
thermal_params[1].temp_fan_max = 160;
thermal_params[2].temp_fan_off = 100;
thermal_params[2].temp_fan_max = 200;
all_temps(50);
sleep(2);
TEST_ASSERT(fan_pct == 0);
all_temps(100);
sleep(2);
TEST_ASSERT(fan_pct == 0);
all_temps(101);
sleep(2);
TEST_ASSERT(fan_pct == 1);
all_temps(130);
sleep(2);
/* fan 2 is still higher */
TEST_ASSERT(fan_pct == 30);
all_temps(150);
sleep(2);
/* now fan 1 is higher: 150 = 75% of [120-160] */
TEST_ASSERT(fan_pct == 75);
all_temps(170);
sleep(2);
/* fan 1 is maxed now */
TEST_ASSERT(fan_pct == 100);
all_temps(200);
sleep(2);
TEST_ASSERT(fan_pct == 100);
all_temps(300);
sleep(2);
TEST_ASSERT(fan_pct == 100);
return EC_SUCCESS;
}
static int test_all_fans(void)
{
reset_mocks();
thermal_params[0].temp_fan_off = 20;
thermal_params[0].temp_fan_max = 60;
thermal_params[1].temp_fan_off = 120;
thermal_params[1].temp_fan_max = 160;
thermal_params[2].temp_fan_off = 100;
thermal_params[2].temp_fan_max = 200;
thermal_params[3].temp_fan_off = 300;
thermal_params[3].temp_fan_max = 500;
set_temps(1, 1, 1, 1);
sleep(2);
TEST_ASSERT(fan_pct == 0);
/* Each sensor has its own range */
set_temps(40, 0, 0, 0);
sleep(2);
TEST_ASSERT(fan_pct == 50);
set_temps(0, 140, 0, 0);
sleep(2);
TEST_ASSERT(fan_pct == 50);
set_temps(0, 0, 150, 0);
sleep(2);
TEST_ASSERT(fan_pct == 50);
set_temps(0, 0, 0, 400);
sleep(2);
TEST_ASSERT(fan_pct == 50);
set_temps(60, 0, 0, 0);
sleep(2);
TEST_ASSERT(fan_pct == 100);
set_temps(0, 160, 0, 0);
sleep(2);
TEST_ASSERT(fan_pct == 100);
set_temps(0, 0, 200, 0);
sleep(2);
TEST_ASSERT(fan_pct == 100);
set_temps(0, 0, 0, 500);
sleep(2);
TEST_ASSERT(fan_pct == 100);
/* But sensor 0 needs the most cooling */
all_temps(20);
sleep(2);
TEST_ASSERT(fan_pct == 0);
all_temps(21);
sleep(2);
TEST_ASSERT(fan_pct == 2);
all_temps(30);
sleep(2);
TEST_ASSERT(fan_pct == 25);
all_temps(40);
sleep(2);
TEST_ASSERT(fan_pct == 50);
all_temps(50);
sleep(2);
TEST_ASSERT(fan_pct == 75);
all_temps(60);
sleep(2);
TEST_ASSERT(fan_pct == 100);
all_temps(65);
sleep(2);
TEST_ASSERT(fan_pct == 100);
return EC_SUCCESS;
}
static int test_one_limit(void)
{
reset_mocks();
thermal_params[2].temp_host[EC_TEMP_THRESH_WARN] = 100;
thermal_params[2].temp_host[EC_TEMP_THRESH_HIGH] = 200;
thermal_params[2].temp_host[EC_TEMP_THRESH_HALT] = 300;
all_temps(50);
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(100);
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(101);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(100);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(99);
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(199);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(200);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(201);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 1);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(200);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 1);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(199);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(99);
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(201);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 1);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(99);
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
all_temps(301);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 1);
TEST_ASSERT(cpu_shutdown == 1);
/* We probably won't be able to read the CPU temp while shutdown,
* so nothing will change. */
all_temps(-1);
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 1);
/* cpu_shutdown is only set for testing purposes. The thermal task
* doesn't do anything that could clear it. */
all_temps(50);
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
return EC_SUCCESS;
}
static int test_several_limits(void)
{
reset_mocks();
thermal_params[1].temp_host[EC_TEMP_THRESH_WARN] = 150;
thermal_params[1].temp_host[EC_TEMP_THRESH_HIGH] = 200;
thermal_params[1].temp_host[EC_TEMP_THRESH_HALT] = 250;
thermal_params[2].temp_host[EC_TEMP_THRESH_WARN] = 100;
thermal_params[2].temp_host[EC_TEMP_THRESH_HIGH] = 200;
thermal_params[2].temp_host[EC_TEMP_THRESH_HALT] = 300;
thermal_params[3].temp_host[EC_TEMP_THRESH_WARN] = 20;
thermal_params[3].temp_host[EC_TEMP_THRESH_HIGH] = 30;
thermal_params[3].temp_host[EC_TEMP_THRESH_HALT] = 40;
set_temps(500, 100, 150, 10);
sleep(2);
TEST_ASSERT(host_throttled == 1); /* 1=low, 2=warn, 3=low */
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
set_temps(500, 50, -1, 10); /* 1=low, 2=X, 3=low */
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
TEST_ASSERT(cpu_shutdown == 0);
set_temps(500, 170, 210, 10); /* 1=warn, 2=high, 3=low */
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 1);
TEST_ASSERT(cpu_shutdown == 0);
set_temps(500, 100, 50, 40); /* 1=low, 2=low, 3=high */
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 1);
TEST_ASSERT(cpu_shutdown == 0);
set_temps(500, 100, 50, 41); /* 1=low, 2=low, 3=shutdown */
sleep(2);
TEST_ASSERT(host_throttled == 1);
TEST_ASSERT(cpu_throttled == 1);
TEST_ASSERT(cpu_shutdown == 1);
all_temps(0); /* reset from shutdown */
sleep(2);
TEST_ASSERT(host_throttled == 0);
TEST_ASSERT(cpu_throttled == 0);
return EC_SUCCESS;
}
void run_test(void)
{
RUN_TEST(test_init_val);
RUN_TEST(test_sensors_can_be_read);
RUN_TEST(test_one_fan);
RUN_TEST(test_two_fans);
RUN_TEST(test_all_fans);
RUN_TEST(test_one_limit);
RUN_TEST(test_several_limits);
test_print_result();
}
|
