MTK CPU温度调节一知半解
关键术语
英文术语 | 中文翻译 | 解释 |
Adaptive Power Control | 自适应功率控制 | 根据温度动态调整功耗的算法 |
Thermal Management (ATM) | 热管理 | 控制芯片温度不超过安全阈值的机制 |
Power Budget | 功率预算 | 分配给CPU/GPU的最大允许功耗 |
GPU Loading | GPU负载 | GPU利用率（0-100%） |
Theta_JA (ΘJA) | 封装热阻 | 从结（Junction）到环境（Ambient）的热阻，单位℃/W |
TARGET_TJ | 目标结温 | 芯片核心的目标温度（通常为安全值，如85℃~105℃） |
Fast Polling | 快速轮询 | 更高频率的温度采样模式（响应更快但功耗略高） |
Minimum Budget Change | 最小预算调整步长 | 单次功率调整的最小值，避免频繁振荡 |
coolers
MTK coolers包括但不仅限于下面表格。AC8257主要使用了cpu温度过高、pmic温度过高、AP温度过高重启，CPU温度55度以及以上使用cooler atm自适应算法0，54度及以下使用cooler atm自适应算法1。
TZ Name | Trip Point | Cooler Name | ||
mtktscpu | 3 | 125 | mtktscpu-sysrst | 调用BUG触发重启 |
55 | cpu_adaptive_0 | |||
54 | cpu_adaptive_1 | |||
mtktspmic | 1 | 136 | mtktspmic-sysrst | |
mtktsbattery | 0 | 60 | mtktsbattery-sysrst | |
mtktspa | 0 | 125 | mtk-cl-shutdown01 | |
mtktscharger | 0 | 125 | mtktscharger-sysrst | |
mtktscharger2 | 0 | 125 | mtktscharger2-rst | |
mtktswmt | 1 | 125 | mtktswmt-sysrst | |
mtktsAP | 7 | 125 | mtktsAP-sysrst | |
90 | mtk-cl-shutdown00 | 发uevent | ||
53 | mtk-cl-cam00 | procfs给应用使用 | ||
47.001 | abcct_lcmoff | |||
47 | abcct_2nd_lcmoff | |||
45.001 | abcct | |||
45 | abcct_2nd | |||
mtktsbtsmdpa | 4 | 125 | mtk-cl-shutdown02 | |
110 | mtk-cl-mdoff | |||
100 | mtk-cl-noIMS | |||
68 | mtk-cl-adp-mutt |
log
TSCPU_LOG_TAG
drivers/misc/mediatek/thermal/common/coolers/mtk_cooler_atm.c
tscpu_dprintk
drivers/misc/mediatek/thermal/ac8257/inc/tscpu_settings.h
245 #define TSCPU_LOG_TAG "[Thermal/TZ/CPU]"
246
247 #define tscpu_dprintk(fmt, args...) \
248 do { \
249 if (tscpu_debug_log == 1) { \
250 pr_notice(TSCPU_LOG_TAG fmt, ##args); \
251 } \
252 } while (0)
253
254 #define tscpu_printk(fmt, args...) pr_notice(TSCPU_LOG_TAG fmt, ##args)
255 #define tscpu_warn(fmt, args...) pr_notice(TSCPU_LOG_TAG fmt, ##args)tscpu_debug_log
drivers/misc/mediatek/thermal/ac8257/src/mtk_tc.c
--- a/drivers/misc/mediatek/thermal/ac8257/src/mtk_tc.c
+++ b/drivers/misc/mediatek/thermal/ac8257/src/mtk_tc.c
@@ -127,7 +127,7 @@ const struct of_device_id mt_thermal_of_match[2] = {};#endif-int tscpu_debug_log;
+int tscpu_debug_log = 1;#if MTK_TS_CPU_RTstatic struct task_struct *ktp_thread_handle;Thermal/TZ/CPU
01-01 08:00:03.344 I/[ 0.576243](3)[1:swapper/0]( 1): [Thermal/TZ/CPU]atm_loop c 70100 p 0 l 2147483647 L 70100 LL -127000
01-01 08:00:03.344 I/[ 0.576290](0)[168:krtatm]( 168): [Thermal/TZ/CPU]krtatm_thread c 70100 p 0 cl 2147483647 gl 2147483647 s 0
01-01 08:00:03.874 I/[ 1.106175](0)[168:krtatm]( 168): [Thermal/TZ/CPU]set_adaptive_cpu_power_limit 1052 T=72500, 1020 T=71900, 963 T=71500, 936 T=70300, 849 T=69700
01-01 08:00:04.394 I/[ 1.626264](2)[168:krtatm]( 168): [Thermal/TZ/CPU]set_adaptive_cpu_power_limit 1155 T=73900, 1143 T=73600, 1106 T=73700, 1089 T=73400, 1054 T=73300
01-01 08:00:05.854 I/[ 3.086191](0)[168:krtatm]( 168): [Thermal/TZ/CPU]set_adaptive_cpu_power_limit 925 T=73600, 875 T=76200, 920 T=76500, 945 T=77000, 1035 T=76200
01-01 08:00:07.111 I/[ 4.342863](3)[168:krtatm]( 168): [Thermal/TZ/CPU]set_adaptive_cpu_power_limit 729 T=76100, 766 T=76100, 783 T=76500, 860 T=76100, 987 T=73900
01-01 08:00:08.330 I/[ 5.562685](3)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_write_atm_setting input 0 2000 10 15 1 685 0 280 0
01-01 08:00:08.330 I/[ 5.562709](3)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_write_dtm_setting applied 0 2000 10 15 1 685 943 358 798
01-01 08:00:08.442 I/[ 5.674076](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_write_atm_setting input 1 1000 10 15 1 400 0 220 0
01-01 08:00:08.442 I/[ 5.674106](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_write_dtm_setting applied 1 1000 10 15 1 400 943 358 798
01-01 08:00:08.442 I/[ 5.674565](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_write_ctm input 2 85000 55000 43000 46000 75000 51000 515000 10000 419000 8000 500 500 13500
01-01 08:00:08.443 I/[ 5.675252](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_unbind unbinding OK
01-01 08:00:08.443 I/[ 5.675316](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_unbind unbinding OK
01-01 08:00:08.443 I/[ 5.675333](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_unbind unbinding OK
01-01 08:00:08.443 I/[ 5.675352](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_unbind unbinding OK
01-01 08:00:08.444 I/[ 5.675881](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_bind binding OK, 0
01-01 08:00:08.444 I/[ 5.675942](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_bind binding OK, 2
01-01 08:00:08.444 I/[ 5.675966](0)[459:thermal_manager]( 459): [Thermal/TZ/CPU]tscpu_bind binding OK, 1
01-01 08:05:50.034 I/[ 347.266146](0)[168:krtatm]( 168): [Thermal/TZ/CPU]set_adaptive_cpu_power_limit 400 T=73900, 685 T=77000, 777 T=75300, 644 T=76100, 669 T=76200
01-01 08:35:44.177 W/[ 2141.409101](1)[980:kworker/u8:12]( 980): [Thermal/TZ/CPU] 400 358 CPU T=85100
01-01 08:03:39.288 0 0 I [ 214.555763](2)[0:swapper/2]: [Thermal/TZ/CPU]tscpu_thermal_read_tc_temp tc_num 0 type 0 order 0
01-01 08:03:39.288 0 0 I [ 214.555784](2)[0:swapper/2]: [Thermal/TZ/CPU]read_tc_raw_temp,ts_raw=3393,temp=42000
01-01 08:03:39.288 0 0 I [ 214.555796](2)[0:swapper/2]: [Thermal/TZ/CPU]tscpu_thermal_read_tc_temp order 0 tc_num 0 type 0 temp 42000
01-01 08:03:39.288 0 0 I [ 214.555807](2)[0:swapper/2]: [Thermal/TZ/CPU]tscpu_thermal_read_tc_temp tc_num 0 type 1 order 1
01-01 08:03:39.288 0 0 I [ 214.555860](2)[0:swapper/2]: [Thermal/TZ/CPU]read_tc_raw_temp,ts_raw=3394,temp=41400
01-01 08:03:39.288 0 0 I [ 214.555872](2)[0:swapper/2]: [Thermal/TZ/CPU]tscpu_thermal_read_tc_temp order 1 tc_num 0 type 1 temp 41400
01-01 08:03:39.288 0 0 I [ 214.555882](2)[0:swapper/2]: [Thermal/TZ/CPU]tscpu_thermal_read_tc_temp tc_num 0 type 2 order 2
01-01 08:03:39.288 0 0 I [ 214.555892](2)[0:swapper/2]: [Thermal/TZ/CPU]read_tc_raw_temp,ts_raw=3395,temp=41300
01-01 08:03:39.288 0 0 I [ 214.555903](2)[0:swapper/2]: [Thermal/TZ/CPU]tscpu_thermal_read_tc_temp order 2 tc_num 0 type 2 temp 41300
01-01 08:03:39.288 0 0 I [ 214.555914](2)[0:swapper/2]: [Thermal/TZ/CPU]get_immediate_ts1_wrap curr_temp=42000
01-01 08:03:39.288 0 0 I [ 214.555924](2)[0:swapper/2]: [Thermal/TZ/CPU]get_immediate_ts2_wrap curr_temp=41400
01-01 08:03:39.288 0 0 I [ 214.555934](2)[0:swapper/2]: [Thermal/TZ/CPU]get_immediate_ts3_wrap curr_temp=41300
01-01 08:03:39.288 0 0 I [ 214.555945]-(2)[0:swapper/2]: [Thermal/TZ/CPU]tscpu_get_temp tscpu_update_tempinfo, 1960
01-01 08:03:39.288 0 0 I [ 214.555955]-(2)[0:swapper/2]: [Thermal/TZ/CPU]get_immediate_ts1_wrap curr_temp=42000
01-01 08:03:39.288 0 0 I [ 214.555964]-(2)[0:swapper/2]: [Thermal/TZ/CPU]get_immediate_ts2_wrap curr_temp=41400
01-01 08:03:39.288 0 0 I [ 214.555974]-(2)[0:swapper/2]: [Thermal/TZ/CPU]get_immediate_ts3_wrap curr_temp=41300
01-01 08:03:39.288 0 0 I [ 214.555983](2)[0:swapper/2]: [Thermal/TZ/CPU]tscpu_get_temp tscpu_max_temperature, 343
01-01 08:03:39.288 0 0 I [ 214.555998](2)[0:swapper/2]: [Thermal/TZ/CPU]get_immediate_cpuL_wrap curr_temp=42000
01-01 08:03:39.288 0 0 I [ 214.556009](2)[0:swapper/2]: [Thermal/TZ/CPU]atm_loop c 42000 p 42000 l 2147483647 L 42000 LL -127000
tscpu
tscpu_thermal_probe
drivers/misc/mediatek/thermal/common/thermal_zones/mtk_ts_cpu.c
tscpu_get_temp
< -30度，> 85度，前后两次变化超过15度，任意一个条件满足就会打印。
592 static int tscpu_get_temp(struct thermal_zone_device *thermal, int *t)593 {594 int ret = 0;595 int curr_temp;596 #if ENALBE_SW_FILTER597 int temp_temp;598 static int last_cpu_real_temp;599 #endif600 #if THERMAL_LT_SET_HPM601 int ts_temp, r;602 #endif603604 #ifdef FAST_RESPONSE_ATM605 curr_temp = tscpu_get_curr_max_ts_temp();606 #else607 curr_temp = tscpu_get_curr_temp();608 #endif609 tscpu_dprintk("%s CPU T=%d\n", __func__, curr_temp);610611 if ((curr_temp > (trip_temp[0] - 15000)) || (curr_temp < -30000)612 || (curr_temp > 85000)) {613 printk_ratelimited(TSCPU_LOG_TAG " %u %u CPU T=%d\n",614 apthermolmt_get_cpu_power_limit(),615 apthermolmt_get_gpu_power_limit(), curr_temp);616 }ktp_thread
tscpu_thermal_all_bank_interrupt_handler
cooler atm
drivers/misc/mediatek/thermal/common/coolers/mtk_cooler_atm.c
算法
0: ATMv1 (default)
1: ATMv2 (FTL)
2: CPU_GPU_Weight ATM v2
3: Precise Power Budgeting + Hybrid Power Budgeting
proc fs
clatm_setting
clatm_gpu_threshold
clatm
clthp
clctmkrtatm_thread
mtk_get_gpu_loading获取GPU负载。_adaptive_power_calc根据上次温度、当前温度、GPU负载计算功率。_adaptive_power老版本计算方式(CPT_ADAPTIVE_AP_COOLER)。 _adaptive_power_ppb精准混合动力测算方法(PRECISE_HYBRID_POWER_BUDGET)。基于温度反馈的自适应功率分配算法，其核心是通过实时监测温度变化，动态调整CPU和GPU的功率预算，从而在防止过热和最大化性能之间取得平衡。
2982 #define KRTATM_RT (1)
2983 #define KRTATM_CFS (2)
2984 #define KRTATM_SCH KRTATM_CFS
2985
2986 static int krtatm_thread(void *arg)
2987 {
2988 #ifdef ATM_CFG_PROFILING
2989 ktime_t last, delta;
2990 #endif
2991
2992 #if KRTATM_SCH == KRTATM_RT
2993 struct sched_param param = {.sched_priority = 98 };
2994
2995 sched_setscheduler(current, SCHED_FIFO, ¶m);
2996 #elif KRTATM_SCH == KRTATM_CFS
2997 set_user_nice(current, MIN_NICE);
2998 #endif
2999 set_current_state(TASK_INTERRUPTIBLE);
3000
3001 tscpu_dprintk("%s 1st run\n", __func__);
3002
3003 schedule();
3004
3005 for (;;) {
3006 #ifdef ATM_CFG_PROFILING
3007 if (atm_resumed) {
3008 atm_resumed = 0;
3009 } else {
3010 delta = ktime_get();
3011 if (ktime_after(delta, last))
3012 atm_profile_atm_period(
3013 ktime_to_us(ktime_sub(delta, last)));
3014 }
3015 last = ktime_get();
3016 #endif
3017 tscpu_dprintk("%s awake\n", __func__);
3018 #if (CONFIG_THERMAL_AEE_RR_REC == 1)
3019 aee_rr_rec_thermal_ATM_status(ATM_WAKEUP);
3020 #endif
3021 if (kthread_should_stop())
3022 break;
3023
3024 {
3025 #ifdef ATM_CFG_PROFILING
3026 ktime_t start, end;
3027 #endif
3028 unsigned int gpu_loading;
3029
3030 #ifdef ATM_CFG_PROFILING
3031 start = ktime_get();
3032 cpu_pwr_lmt_latest_delay = 0;
3033 gpu_pwr_lmt_latest_delay = 0;
3034 #endif
3035
3036 if (!mtk_get_gpu_loading(&gpu_loading))
3037 gpu_loading = 0;
3038
3039 /* use separate prev/curr in krtatm because
3040 * krtatm may be blocked by PPM
3041 */
3042 krtatm_prev_maxtj = krtatm_curr_maxtj;
3043 krtatm_curr_maxtj = atm_curr_maxtj;
3044 if (krtatm_prev_maxtj == 0)
3045 krtatm_prev_maxtj = atm_prev_maxtj;
3046
3047 _adaptive_power_calc(krtatm_prev_maxtj,
3048 krtatm_curr_maxtj,
3049 (unsigned int) gpu_loading);
3050
3051 /* To confirm if krtatm kthread is really running. */
3052 if (krtatm_curr_maxtj >= 100000 ||
3053 (krtatm_curr_maxtj - krtatm_prev_maxtj >= 20000))
3054 tscpu_warn("%s c %d p %d cl %d gl %d s %d\n",
3055 __func__, krtatm_curr_maxtj,
3056 krtatm_prev_maxtj,
3057 adaptive_cpu_power_limit,
3058 adaptive_gpu_power_limit,
3059 cl_dev_adp_cpu_state_active);
3060
3061 #ifdef ATM_CFG_PROFILING
3062 end = ktime_get();
3063 if (ktime_after(end, start))
3064 atm_profile_atm_exec((ktime_to_us(
3065 ktime_sub(end, start)) -
3066 cpu_pwr_lmt_latest_delay
3067 - gpu_pwr_lmt_latest_delay));
3068 #endif
3069 }
3070 set_current_state(TASK_INTERRUPTIBLE);
3071 schedule();
3072 }
3073
3074 tscpu_warn("%s stopped\n", __func__);
3075 return 0;
3076 }
_adaptive_power
_adaptive_power_ppb
算法的核心思想是：温度上升 → 功率预算减少；温度下降 → 功率预算增加。输入: 温度（当前、上次）、GPU负载。根据温度变化计算一个新的系统总功率预算。输出: 一个分解到CPU/GPU的功率限制值（通过 P_adaptive 函数）。
atm_loop
日志中c后面的表示当前温度，p后面的先前温度，l后面是cpu功耗限制，L后面为TS_MCU1温度，LL后面为-127000。大于100度或前后2次温度差超过15度，用tscpu_warn打印；否则tscpu_dprintk打印。
2827 #if KRTATM_TIMER == KRTATM_HR
2828 static enum hrtimer_restart atm_loop(struct hrtimer *timer)
2829 {
2830 ktime_t ktime;
2831 #elif KRTATM_TIMER == KRTATM_NORMAL
2832 static int atm_loop(void)
2833 {
2834 #endif
2835 int temp;
2836 #ifdef ENALBE_UART_LIMIT
2837 #if ENALBE_UART_LIMIT
2838 static int hasDisabled;
2839 #endif
2840 #endif
2841 char buffer[128];
2842 unsigned long polling_time;
2843 #if KRTATM_TIMER == KRTATM_HR
2844 unsigned long polling_time_s;
2845 unsigned long polling_time_ns;
2846 #endif
2847
2848 tscpu_workqueue_start_timer();
2849
2850 atm_prev_maxtj = atm_curr_maxtj;
2851 atm_curr_maxtj = tscpu_get_curr_temp();
2852
2853 #ifdef CONFIG_MTK_TINYSYS_SSPM_SUPPORT
2854 #if THERMAL_ENABLE_TINYSYS_SSPM && CPT_ADAPTIVE_AP_COOLER && \
2855 PRECISE_HYBRID_POWER_BUDGET && CONTINUOUS_TM
2856 if (atm_sspm_enabled == 1) {
2857 #ifdef ATM_CFG_PROFILING
2858 atm_resumed = 1; /* Must skip last timestamp. */
2859 #endif
2860 goto exit;
2861 }
2862 #endif
2863 #endif
2864
2865 temp = sprintf(buffer, "%s c %d p %d l %d ", __func__,
2866 atm_curr_maxtj, atm_prev_maxtj,
2867 adaptive_cpu_power_limit);
2868
2869 if (atm_curr_maxtj >= 100000
2870 || (atm_curr_maxtj - atm_prev_maxtj >= 15000))
2871 print_risky_temps(buffer, temp, 1);
2872 else
2873 print_risky_temps(buffer, temp, 0);
2874
2875 #ifdef ENALBE_UART_LIMIT
2876 #if ENALBE_UART_LIMIT
2877 temp = atm_curr_maxtj;
2878 if ((TEMP_DIS_UART - TEMP_TOLERANCE) < temp) {
2879 /************************************************
2880 * Disable UART log
2881 ************************************************
2882 */
2883 if (mt_get_uartlog_status()) {
2884 hasDisabled = 1;
2885 set_uartlog_status(false);
2886 }
2887 }
2888
2889 if (temp < (TEMP_EN_UART + TEMP_TOLERANCE)) {
2890 /*************************************************
2891 * Restore UART log
2892 ************************************************
2893 */
2894 if (!mt_get_uartlog_status() && hasDisabled)
2895 set_uartlog_status(true);
2896
2897 hasDisabled = 0;
2898 }
2899 #endif
2900 #endif
2901
2902 if (krtatm_thread_handle != NULL)
2903 wake_up_process(krtatm_thread_handle);
2904
2905
2906 #ifdef CONFIG_MTK_TINYSYS_SSPM_SUPPORT
2907 #if THERMAL_ENABLE_TINYSYS_SSPM && CPT_ADAPTIVE_AP_COOLER && \
2908 PRECISE_HYBRID_POWER_BUDGET && CONTINUOUS_TM
2909 exit:
2910 #endif
2911 #endif
2912
2913 polling_time = atm_get_timeout_time(atm_curr_maxtj);
2914
2915 #if KRTATM_TIMER == KRTATM_HR
2916
2917 /* avoid overflow */
2918 if (polling_time > (1000000000-1)) {
2919 polling_time_s = polling_time / 1000000000;
2920 polling_time_ns = polling_time % 1000000000;
2921 ktime = ktime_set(polling_time_s, polling_time_ns);
2922 /* tscpu_warn("%s polling_time_s=%ld "
2923 * "polling_time_ns=%ld\n", __func__,
2924 * polling_time_s,polling_time_ns);
2925 */
2926
2927 } else {
2928 ktime = ktime_set(0, polling_time);
2929 }
2930
2931 hrtimer_forward_now(timer, ktime);
2932
2933 return HRTIMER_RESTART;
2934 #elif KRTATM_TIMER == KRTATM_NORMAL
2935
2936 atm_timer.expires = jiffies + msecs_to_jiffies(polling_time);
2937 add_timer(&atm_timer);
2938
2939 return 0;
2940 #endif
2941
2942 }print_risky_temps
1624 /* chip dependent */
1625 void print_risky_temps(char *prefix, int offset, int printLevel)
1626 {
1627 sprintf((prefix + offset), "L %d LL %d",
1628 get_immediate_cpuL_wrap(), get_immediate_cpuLL_wrap());
1629
1630 switch (printLevel) {
1631 case 0:
1632 tscpu_dprintk("%s\n", prefix);
1633 break;
1634 case 1:
1635 tscpu_warn("%s\n", prefix);
1636 break;
1637 default:
1638 tscpu_dprintk("%s\n", prefix);
1639 }
1640 }set_adaptive_cpu_power_limit
每运行5次打印1次。
698 static void set_adaptive_cpu_power_limit(unsigned int limit)699 {700 #ifdef CONFIG_MTK_TINYSYS_SSPM_SUPPORT701 #if THERMAL_ENABLE_TINYSYS_SSPM && CPT_ADAPTIVE_AP_COOLER && \702 PRECISE_HYBRID_POWER_BUDGET && CONTINUOUS_TM703 mutex_lock(&atm_cpu_lmt_mutex);704 #endif705 #endif706707 prv_adp_cpu_pwr_lim = adaptive_cpu_power_limit;708 adaptive_cpu_power_limit = (limit != 0) ? limit : 0x7FFFFFFF;709 #ifdef CONFIG_MTK_TINYSYS_SSPM_SUPPORT710 #if THERMAL_ENABLE_TINYSYS_SSPM && CPT_ADAPTIVE_AP_COOLER && \711 PRECISE_HYBRID_POWER_BUDGET && CONTINUOUS_TM712 if (atm_sspm_enabled)713 adaptive_cpu_power_limit = 0x7FFFFFFF;714 #endif715 #endif716717 if (prv_adp_cpu_pwr_lim != adaptive_cpu_power_limit) {718 #ifdef ATM_CFG_PROFILING719 ktime_t now, delta;720 #endif721722 /* print debug log */723 adaptive_limit[print_cunt][0] =724 (int) (adaptive_cpu_power_limit != 0x7FFFFFFF) ?725 adaptive_cpu_power_limit : 0;726727 #ifdef FAST_RESPONSE_ATM728 adaptive_limit[print_cunt][1] = krtatm_curr_maxtj;729 #else730 adaptive_limit[print_cunt][1] = tscpu_get_curr_temp();731 #endif732 print_cunt++;733 if (print_cunt == 5) {734 tscpu_warn(735 "%s %d T=%d, %d T=%d, %d T=%d, %d T=%d, %d T=%d\n",736 __func__,737 adaptive_limit[4][0], adaptive_limit[4][1],738 adaptive_limit[3][0], adaptive_limit[3][1],739 adaptive_limit[2][0], adaptive_limit[2][1],740 adaptive_limit[1][0], adaptive_limit[1][1],741 adaptive_limit[0][0], adaptive_limit[0][1]);742743 print_cunt = 0;744 } else {745 #ifdef FAST_RESPONSE_ATM746 if ((prv_adp_cpu_pwr_lim != 0x7FFFFFFF) &&747 ((adaptive_cpu_power_limit + 1000)748 < prv_adp_cpu_pwr_lim))749 tscpu_warn(750 "%s Big delta power %u curr_T=%d, %u prev_T=%d\n",751 __func__, adaptive_cpu_power_limit,752 krtatm_curr_maxtj, prv_adp_cpu_pwr_lim,753 krtatm_prev_maxtj);754 #endif755 }756757 #ifdef ATM_CFG_PROFILING758 now = ktime_get();759 #endif760 apthermolmt_set_cpu_power_limit(&ap_atm,761 adaptive_cpu_power_limit);762763 #ifdef ATM_CFG_PROFILING764 delta = ktime_get();765 if (ktime_after(delta, now)) {766 cpu_pwr_lmt_latest_delay =767 ktime_to_us(ktime_sub(delta, now));768769 atm_profile_cpu_power_limit(cpu_pwr_lmt_latest_delay);770 }771 #endif772 }773774 #ifdef CONFIG_MTK_TINYSYS_SSPM_SUPPORT775 #if THERMAL_ENABLE_TINYSYS_SSPM && CPT_ADAPTIVE_AP_COOLER && \776 PRECISE_HYBRID_POWER_BUDGET && CONTINUOUS_TM777 mutex_unlock(&atm_cpu_lmt_mutex);778 #endif779 #endif780 }timer
高精度定时器，每100ms调用tscpu_get_curr_temp获取当前cpu温度。打印日志，c后面是当前温度，p后面是上一次温度，l后面是cpu功耗限制。"%s c %d p %d l %d ", __func__, atm_curr_maxtj, atm_prev_maxtj, adaptive_cpu_power_limit
2944 #if KRTATM_TIMER == KRTATM_HR
2945 static void atm_hrtimer_init(void)
2946 {
2947 ktime_t ktime;
2948
2949 tscpu_dprintk("%s\n", __func__);
2950
2951 /*100000000 = 100 ms,polling delay can't larger than 100ms*/
2952 atm_hrtimer_polling_delay =
2953 (atm_hrtimer_polling_delay < 100000000) ?
2954 atm_hrtimer_polling_delay : 100000000;
2955
2956 ktime = ktime_set(0, atm_hrtimer_polling_delay);
2957
2958 hrtimer_init(&atm_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
2959
2960 atm_hrtimer.function = atm_loop;
2961 hrtimer_start(&atm_hrtimer, ktime, HRTIMER_MODE_REL);
2962 }
2963 #elif KRTATM_TIMER == KRTATM_NORMAL
2964 static void atm_timer_init(void)
2965 {
2966 tscpu_dprintk("%s\n", __func__);
2967
2968 /*polling delay can't larger than 100ms*/
2969 atm_timer_polling_delay = (atm_timer_polling_delay < 100) ?
2970 atm_timer_polling_delay : 100;
2971
2972 init_timer_deferrable(&atm_timer);
2973 atm_timer.function = (void *)&atm_loop;
2974 atm_timer.data = (unsigned long)&atm_timer;
2975 atm_timer.expires =
2976 jiffies + msecs_to_jiffies(atm_timer_polling_delay);
2977
2978 add_timer(&atm_timer);
2979 }
2980 #endifpolling delay
288 #define TS_MS_TO_NS(x) (x * 1000 * 1000)289 #if KRTATM_TIMER == KRTATM_HR290 static struct hrtimer atm_hrtimer;291 static unsigned long atm_hrtimer_polling_delay =292 TS_MS_TO_NS(CLATM_INIT_HRTIMER_POLLING_DELAY);
POLLING DELAY
drivers/misc/mediatek/thermal/ac8257/inc/clatm_initcfg.h
62 #define CLATM_INIT_HRTIMER_POLLING_DELAY (100)cooler sysrst
drivers/misc/mediatek/thermal/common/coolers/mtk_cooler_sysrst.c
52 /*53 * cooling device callback functions (tscpu_cooling_sysrst_ops)54 * 1 : ON and 0 : OFF55 */56 static int sysrst_cpu_get_max_state(57 struct thermal_cooling_device *cdev, unsigned long *state)58 {59 /* tscpu_dprintk("sysrst_cpu_get_max_state\n"); */60 *state = 1;61 return 0;62 }6364 static int sysrst_cpu_get_cur_state(65 struct thermal_cooling_device *cdev, unsigned long *state)66 {67 /* tscpu_dprintk("sysrst_cpu_get_cur_state\n"); */68 *state = cl_dev_sysrst_state;69 return 0;70 }7172 static int sysrst_cpu_set_cur_state(73 struct thermal_cooling_device *cdev, unsigned long state)74 {75 cl_dev_sysrst_state = state;7677 if (cl_dev_sysrst_state == 1) {78 tscpu_printk("sysrst_cpu_set_cur_state = 1\n");79 tscpu_printk("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");80 tscpu_printk("*****************************************\n");81 tscpu_printk("@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@\n");828384 /* To trigger data abort to reset the system85 * for thermal protection.86 */87 BUG();888990 }91 return 0;92 }