diff options
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/power/main.c | 30 | ||||
| -rw-r--r-- | drivers/base/syscore.c | 5 |
2 files changed, 31 insertions, 4 deletions
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index 343ffad59377..bf412961a934 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c | |||
| @@ -214,9 +214,6 @@ static void initcall_debug_report(struct device *dev, ktime_t calltime, | |||
| 214 | pr_info("call %s+ returned %d after %Ld usecs\n", dev_name(dev), | 214 | pr_info("call %s+ returned %d after %Ld usecs\n", dev_name(dev), |
| 215 | error, (unsigned long long)nsecs >> 10); | 215 | error, (unsigned long long)nsecs >> 10); |
| 216 | } | 216 | } |
| 217 | |||
| 218 | trace_device_pm_report_time(dev, info, nsecs, pm_verb(state.event), | ||
| 219 | error); | ||
| 220 | } | 217 | } |
| 221 | 218 | ||
| 222 | /** | 219 | /** |
| @@ -387,7 +384,9 @@ static int dpm_run_callback(pm_callback_t cb, struct device *dev, | |||
| 387 | calltime = initcall_debug_start(dev); | 384 | calltime = initcall_debug_start(dev); |
| 388 | 385 | ||
| 389 | pm_dev_dbg(dev, state, info); | 386 | pm_dev_dbg(dev, state, info); |
| 387 | trace_device_pm_callback_start(dev, info, state.event); | ||
| 390 | error = cb(dev); | 388 | error = cb(dev); |
| 389 | trace_device_pm_callback_end(dev, error); | ||
| 391 | suspend_report_result(cb, error); | 390 | suspend_report_result(cb, error); |
| 392 | 391 | ||
| 393 | initcall_debug_report(dev, calltime, error, state, info); | 392 | initcall_debug_report(dev, calltime, error, state, info); |
| @@ -545,6 +544,7 @@ static void dpm_resume_noirq(pm_message_t state) | |||
| 545 | struct device *dev; | 544 | struct device *dev; |
| 546 | ktime_t starttime = ktime_get(); | 545 | ktime_t starttime = ktime_get(); |
| 547 | 546 | ||
| 547 | trace_suspend_resume(TPS("dpm_resume_noirq"), state.event, true); | ||
| 548 | mutex_lock(&dpm_list_mtx); | 548 | mutex_lock(&dpm_list_mtx); |
| 549 | pm_transition = state; | 549 | pm_transition = state; |
| 550 | 550 | ||
| @@ -587,6 +587,7 @@ static void dpm_resume_noirq(pm_message_t state) | |||
| 587 | dpm_show_time(starttime, state, "noirq"); | 587 | dpm_show_time(starttime, state, "noirq"); |
| 588 | resume_device_irqs(); | 588 | resume_device_irqs(); |
| 589 | cpuidle_resume(); | 589 | cpuidle_resume(); |
| 590 | trace_suspend_resume(TPS("dpm_resume_noirq"), state.event, false); | ||
| 590 | } | 591 | } |
| 591 | 592 | ||
| 592 | /** | 593 | /** |
| @@ -664,6 +665,7 @@ static void dpm_resume_early(pm_message_t state) | |||
| 664 | struct device *dev; | 665 | struct device *dev; |
| 665 | ktime_t starttime = ktime_get(); | 666 | ktime_t starttime = ktime_get(); |
| 666 | 667 | ||
| 668 | trace_suspend_resume(TPS("dpm_resume_early"), state.event, true); | ||
| 667 | mutex_lock(&dpm_list_mtx); | 669 | mutex_lock(&dpm_list_mtx); |
| 668 | pm_transition = state; | 670 | pm_transition = state; |
| 669 | 671 | ||
| @@ -703,6 +705,7 @@ static void dpm_resume_early(pm_message_t state) | |||
| 703 | mutex_unlock(&dpm_list_mtx); | 705 | mutex_unlock(&dpm_list_mtx); |
| 704 | async_synchronize_full(); | 706 | async_synchronize_full(); |
| 705 | dpm_show_time(starttime, state, "early"); | 707 | dpm_show_time(starttime, state, "early"); |
| 708 | trace_suspend_resume(TPS("dpm_resume_early"), state.event, false); | ||
| 706 | } | 709 | } |
| 707 | 710 | ||
| 708 | /** | 711 | /** |
| @@ -834,6 +837,7 @@ void dpm_resume(pm_message_t state) | |||
| 834 | struct device *dev; | 837 | struct device *dev; |
| 835 | ktime_t starttime = ktime_get(); | 838 | ktime_t starttime = ktime_get(); |
| 836 | 839 | ||
| 840 | trace_suspend_resume(TPS("dpm_resume"), state.event, true); | ||
| 837 | might_sleep(); | 841 | might_sleep(); |
| 838 | 842 | ||
| 839 | mutex_lock(&dpm_list_mtx); | 843 | mutex_lock(&dpm_list_mtx); |
| @@ -875,6 +879,7 @@ void dpm_resume(pm_message_t state) | |||
| 875 | dpm_show_time(starttime, state, NULL); | 879 | dpm_show_time(starttime, state, NULL); |
| 876 | 880 | ||
| 877 | cpufreq_resume(); | 881 | cpufreq_resume(); |
| 882 | trace_suspend_resume(TPS("dpm_resume"), state.event, false); | ||
| 878 | } | 883 | } |
| 879 | 884 | ||
| 880 | /** | 885 | /** |
| @@ -913,7 +918,9 @@ static void device_complete(struct device *dev, pm_message_t state) | |||
| 913 | 918 | ||
| 914 | if (callback) { | 919 | if (callback) { |
| 915 | pm_dev_dbg(dev, state, info); | 920 | pm_dev_dbg(dev, state, info); |
| 921 | trace_device_pm_callback_start(dev, info, state.event); | ||
| 916 | callback(dev); | 922 | callback(dev); |
| 923 | trace_device_pm_callback_end(dev, 0); | ||
| 917 | } | 924 | } |
| 918 | 925 | ||
| 919 | device_unlock(dev); | 926 | device_unlock(dev); |
| @@ -932,6 +939,7 @@ void dpm_complete(pm_message_t state) | |||
| 932 | { | 939 | { |
| 933 | struct list_head list; | 940 | struct list_head list; |
| 934 | 941 | ||
| 942 | trace_suspend_resume(TPS("dpm_complete"), state.event, true); | ||
| 935 | might_sleep(); | 943 | might_sleep(); |
| 936 | 944 | ||
| 937 | INIT_LIST_HEAD(&list); | 945 | INIT_LIST_HEAD(&list); |
| @@ -951,6 +959,7 @@ void dpm_complete(pm_message_t state) | |||
| 951 | } | 959 | } |
| 952 | list_splice(&list, &dpm_list); | 960 | list_splice(&list, &dpm_list); |
| 953 | mutex_unlock(&dpm_list_mtx); | 961 | mutex_unlock(&dpm_list_mtx); |
| 962 | trace_suspend_resume(TPS("dpm_complete"), state.event, false); | ||
| 954 | } | 963 | } |
| 955 | 964 | ||
| 956 | /** | 965 | /** |
| @@ -1086,6 +1095,7 @@ static int dpm_suspend_noirq(pm_message_t state) | |||
| 1086 | ktime_t starttime = ktime_get(); | 1095 | ktime_t starttime = ktime_get(); |
| 1087 | int error = 0; | 1096 | int error = 0; |
| 1088 | 1097 | ||
| 1098 | trace_suspend_resume(TPS("dpm_suspend_noirq"), state.event, true); | ||
| 1089 | cpuidle_pause(); | 1099 | cpuidle_pause(); |
| 1090 | suspend_device_irqs(); | 1100 | suspend_device_irqs(); |
| 1091 | mutex_lock(&dpm_list_mtx); | 1101 | mutex_lock(&dpm_list_mtx); |
| @@ -1126,6 +1136,7 @@ static int dpm_suspend_noirq(pm_message_t state) | |||
| 1126 | } else { | 1136 | } else { |
| 1127 | dpm_show_time(starttime, state, "noirq"); | 1137 | dpm_show_time(starttime, state, "noirq"); |
| 1128 | } | 1138 | } |
| 1139 | trace_suspend_resume(TPS("dpm_suspend_noirq"), state.event, false); | ||
| 1129 | return error; | 1140 | return error; |
| 1130 | } | 1141 | } |
| 1131 | 1142 | ||
| @@ -1222,6 +1233,7 @@ static int dpm_suspend_late(pm_message_t state) | |||
| 1222 | ktime_t starttime = ktime_get(); | 1233 | ktime_t starttime = ktime_get(); |
| 1223 | int error = 0; | 1234 | int error = 0; |
| 1224 | 1235 | ||
| 1236 | trace_suspend_resume(TPS("dpm_suspend_late"), state.event, true); | ||
| 1225 | mutex_lock(&dpm_list_mtx); | 1237 | mutex_lock(&dpm_list_mtx); |
| 1226 | pm_transition = state; | 1238 | pm_transition = state; |
| 1227 | async_error = 0; | 1239 | async_error = 0; |
| @@ -1257,6 +1269,7 @@ static int dpm_suspend_late(pm_message_t state) | |||
| 1257 | } else { | 1269 | } else { |
| 1258 | dpm_show_time(starttime, state, "late"); | 1270 | dpm_show_time(starttime, state, "late"); |
| 1259 | } | 1271 | } |
| 1272 | trace_suspend_resume(TPS("dpm_suspend_late"), state.event, false); | ||
| 1260 | return error; | 1273 | return error; |
| 1261 | } | 1274 | } |
| 1262 | 1275 | ||
| @@ -1295,7 +1308,9 @@ static int legacy_suspend(struct device *dev, pm_message_t state, | |||
| 1295 | 1308 | ||
| 1296 | calltime = initcall_debug_start(dev); | 1309 | calltime = initcall_debug_start(dev); |
| 1297 | 1310 | ||
| 1311 | trace_device_pm_callback_start(dev, info, state.event); | ||
| 1298 | error = cb(dev, state); | 1312 | error = cb(dev, state); |
| 1313 | trace_device_pm_callback_end(dev, error); | ||
| 1299 | suspend_report_result(cb, error); | 1314 | suspend_report_result(cb, error); |
| 1300 | 1315 | ||
| 1301 | initcall_debug_report(dev, calltime, error, state, info); | 1316 | initcall_debug_report(dev, calltime, error, state, info); |
| @@ -1461,6 +1476,7 @@ int dpm_suspend(pm_message_t state) | |||
| 1461 | ktime_t starttime = ktime_get(); | 1476 | ktime_t starttime = ktime_get(); |
| 1462 | int error = 0; | 1477 | int error = 0; |
| 1463 | 1478 | ||
| 1479 | trace_suspend_resume(TPS("dpm_suspend"), state.event, true); | ||
| 1464 | might_sleep(); | 1480 | might_sleep(); |
| 1465 | 1481 | ||
| 1466 | cpufreq_suspend(); | 1482 | cpufreq_suspend(); |
| @@ -1498,6 +1514,7 @@ int dpm_suspend(pm_message_t state) | |||
| 1498 | dpm_save_failed_step(SUSPEND_SUSPEND); | 1514 | dpm_save_failed_step(SUSPEND_SUSPEND); |
| 1499 | } else | 1515 | } else |
| 1500 | dpm_show_time(starttime, state, NULL); | 1516 | dpm_show_time(starttime, state, NULL); |
| 1517 | trace_suspend_resume(TPS("dpm_suspend"), state.event, false); | ||
| 1501 | return error; | 1518 | return error; |
| 1502 | } | 1519 | } |
| 1503 | 1520 | ||
| @@ -1549,8 +1566,11 @@ static int device_prepare(struct device *dev, pm_message_t state) | |||
| 1549 | callback = dev->driver->pm->prepare; | 1566 | callback = dev->driver->pm->prepare; |
| 1550 | } | 1567 | } |
| 1551 | 1568 | ||
| 1552 | if (callback) | 1569 | if (callback) { |
| 1570 | trace_device_pm_callback_start(dev, info, state.event); | ||
| 1553 | ret = callback(dev); | 1571 | ret = callback(dev); |
| 1572 | trace_device_pm_callback_end(dev, ret); | ||
| 1573 | } | ||
| 1554 | 1574 | ||
| 1555 | device_unlock(dev); | 1575 | device_unlock(dev); |
| 1556 | 1576 | ||
| @@ -1582,6 +1602,7 @@ int dpm_prepare(pm_message_t state) | |||
| 1582 | { | 1602 | { |
| 1583 | int error = 0; | 1603 | int error = 0; |
| 1584 | 1604 | ||
| 1605 | trace_suspend_resume(TPS("dpm_prepare"), state.event, true); | ||
| 1585 | might_sleep(); | 1606 | might_sleep(); |
| 1586 | 1607 | ||
| 1587 | mutex_lock(&dpm_list_mtx); | 1608 | mutex_lock(&dpm_list_mtx); |
| @@ -1612,6 +1633,7 @@ int dpm_prepare(pm_message_t state) | |||
| 1612 | put_device(dev); | 1633 | put_device(dev); |
| 1613 | } | 1634 | } |
| 1614 | mutex_unlock(&dpm_list_mtx); | 1635 | mutex_unlock(&dpm_list_mtx); |
| 1636 | trace_suspend_resume(TPS("dpm_prepare"), state.event, false); | ||
| 1615 | return error; | 1637 | return error; |
| 1616 | } | 1638 | } |
| 1617 | 1639 | ||
diff --git a/drivers/base/syscore.c b/drivers/base/syscore.c index e8d11b6630ee..dbb8350ea8dc 100644 --- a/drivers/base/syscore.c +++ b/drivers/base/syscore.c | |||
| @@ -10,6 +10,7 @@ | |||
| 10 | #include <linux/mutex.h> | 10 | #include <linux/mutex.h> |
| 11 | #include <linux/module.h> | 11 | #include <linux/module.h> |
| 12 | #include <linux/interrupt.h> | 12 | #include <linux/interrupt.h> |
| 13 | #include <trace/events/power.h> | ||
| 13 | 14 | ||
| 14 | static LIST_HEAD(syscore_ops_list); | 15 | static LIST_HEAD(syscore_ops_list); |
| 15 | static DEFINE_MUTEX(syscore_ops_lock); | 16 | static DEFINE_MUTEX(syscore_ops_lock); |
| @@ -49,6 +50,7 @@ int syscore_suspend(void) | |||
| 49 | struct syscore_ops *ops; | 50 | struct syscore_ops *ops; |
| 50 | int ret = 0; | 51 | int ret = 0; |
| 51 | 52 | ||
| 53 | trace_suspend_resume(TPS("syscore_suspend"), 0, true); | ||
| 52 | pr_debug("Checking wakeup interrupts\n"); | 54 | pr_debug("Checking wakeup interrupts\n"); |
| 53 | 55 | ||
| 54 | /* Return error code if there are any wakeup interrupts pending. */ | 56 | /* Return error code if there are any wakeup interrupts pending. */ |
| @@ -70,6 +72,7 @@ int syscore_suspend(void) | |||
| 70 | "Interrupts enabled after %pF\n", ops->suspend); | 72 | "Interrupts enabled after %pF\n", ops->suspend); |
| 71 | } | 73 | } |
| 72 | 74 | ||
| 75 | trace_suspend_resume(TPS("syscore_suspend"), 0, false); | ||
| 73 | return 0; | 76 | return 0; |
| 74 | 77 | ||
| 75 | err_out: | 78 | err_out: |
| @@ -92,6 +95,7 @@ void syscore_resume(void) | |||
| 92 | { | 95 | { |
| 93 | struct syscore_ops *ops; | 96 | struct syscore_ops *ops; |
| 94 | 97 | ||
| 98 | trace_suspend_resume(TPS("syscore_resume"), 0, true); | ||
| 95 | WARN_ONCE(!irqs_disabled(), | 99 | WARN_ONCE(!irqs_disabled(), |
| 96 | "Interrupts enabled before system core resume.\n"); | 100 | "Interrupts enabled before system core resume.\n"); |
| 97 | 101 | ||
| @@ -103,6 +107,7 @@ void syscore_resume(void) | |||
| 103 | WARN_ONCE(!irqs_disabled(), | 107 | WARN_ONCE(!irqs_disabled(), |
| 104 | "Interrupts enabled after %pF\n", ops->resume); | 108 | "Interrupts enabled after %pF\n", ops->resume); |
| 105 | } | 109 | } |
| 110 | trace_suspend_resume(TPS("syscore_resume"), 0, false); | ||
| 106 | } | 111 | } |
| 107 | EXPORT_SYMBOL_GPL(syscore_resume); | 112 | EXPORT_SYMBOL_GPL(syscore_resume); |
| 108 | #endif /* CONFIG_PM_SLEEP */ | 113 | #endif /* CONFIG_PM_SLEEP */ |
