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author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-13 00:14:19 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-13 00:14:19 +0400 |
commit | 19c1940feab777bb037c665a09f495d08a6c4e6c (patch) | |
tree | 68d4de31f30c9d69a1f1ea080b8a69ce61e1ead5 /include/trace | |
parent | 7c574cf6aeb75920ba4d3af937bb1b3c42785ac4 (diff) | |
parent | d715a226b0b3dae48865d05e8c36175a8f75a809 (diff) | |
download | linux-19c1940feab777bb037c665a09f495d08a6c4e6c.tar.xz |
Merge tag 'pm+acpi-3.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management updates from Rafael Wysocki:
"These are fixups on top of the previous PM+ACPI pull request,
regression fixes (ACPI hotplug, cpufreq ppc-corenet), other bug fixes
(ACPI reset, cpufreq), new PM trace points for system suspend
profiling and a copyright notice update.
Specifics:
- I didn't remember correctly that the Hans de Goede's ACPI video
patches actually didn't flip the video.use_native_backlight
default, although we had discussed that and decided to do that.
Since I said we would do that in the previous PM+ACPI pull request,
make that change for real now.
- ACPI bus check notifications for PCI host bridges don't cause the
bus below the host bridge to be checked for changes as they should
because of a mistake in the ACPI-based PCI hotplug (ACPIPHP)
subsystem that forgets to add hotplug contexts to PCI host bridge
ACPI device objects. Create hotplug contexts for PCI host bridges
too as appropriate.
- Revert recent cpufreq commit related to the big.LITTLE cpufreq
driver that breaks arm64 builds.
- Fix for a regression in the ppc-corenet cpufreq driver introduced
during the 3.15 cycle and causing the driver to use the remainder
from do_div instead of the quotient. From Ed Swarthout.
- Resets triggered by panic activate a BUG_ON() in vmalloc.c on
systems where the ACPI reset register is located in memory address
space. Fix from Randy Wright.
- Fix for a problem with cpufreq governors that decisions made by
them may be suboptimal due to the fact that deferrable timers are
used by them for CPU load sampling. From Srivatsa S Bhat.
- Fix for a problem with the Tegra cpufreq driver where the CPU
frequency is temporarily switched to a "stable" level that is
different from both the initial and target frequencies during
transitions which causes udelay() to expire earlier than it should
sometimes. From Viresh Kumar.
- New trace points and rework of some existing trace points for
system suspend/resume profiling from Todd Brandt.
- Assorted cpufreq fixes and cleanups from Stratos Karafotis and
Viresh Kumar.
- Copyright notice update for suspend-and-cpuhotplug.txt from
Srivatsa S Bhat"
* tag 'pm+acpi-3.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / hotplug / PCI: Add hotplug contexts to PCI host bridges
PM / sleep: trace events for device PM callbacks
cpufreq: cpufreq-cpu0: remove dependency on THERMAL and REGULATOR
cpufreq: tegra: update comment for clarity
cpufreq: intel_pstate: Remove duplicate CPU ID check
cpufreq: Mark CPU0 driver with CPUFREQ_NEED_INITIAL_FREQ_CHECK flag
PM / Documentation: Update copyright in suspend-and-cpuhotplug.txt
cpufreq: governor: remove copy_prev_load from 'struct cpu_dbs_common_info'
cpufreq: governor: Be friendly towards latency-sensitive bursty workloads
PM / sleep: trace events for suspend/resume
cpufreq: ppc-corenet-cpu-freq: do_div use quotient
Revert "cpufreq: Enable big.LITTLE cpufreq driver on arm64"
cpufreq: Tegra: implement intermediate frequency callbacks
cpufreq: add support for intermediate (stable) frequencies
ACPI / video: Change the default for video.use_native_backlight to 1
ACPI: Fix bug when ACPI reset register is implemented in system memory
Diffstat (limited to 'include/trace')
-rw-r--r-- | include/trace/events/power.h | 84 |
1 files changed, 58 insertions, 26 deletions
diff --git a/include/trace/events/power.h b/include/trace/events/power.h index 9a7e08d61258..d19840b0cac8 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -7,6 +7,9 @@ #include <linux/ktime.h> #include <linux/pm_qos.h> #include <linux/tracepoint.h> +#include <linux/ftrace_event.h> + +#define TPS(x) tracepoint_string(x) DECLARE_EVENT_CLASS(cpu, @@ -90,6 +93,17 @@ TRACE_EVENT(pstate_sample, #define PWR_EVENT_EXIT -1 #endif +#define pm_verb_symbolic(event) \ + __print_symbolic(event, \ + { PM_EVENT_SUSPEND, "suspend" }, \ + { PM_EVENT_RESUME, "resume" }, \ + { PM_EVENT_FREEZE, "freeze" }, \ + { PM_EVENT_QUIESCE, "quiesce" }, \ + { PM_EVENT_HIBERNATE, "hibernate" }, \ + { PM_EVENT_THAW, "thaw" }, \ + { PM_EVENT_RESTORE, "restore" }, \ + { PM_EVENT_RECOVER, "recover" }) + DEFINE_EVENT(cpu, cpu_frequency, TP_PROTO(unsigned int frequency, unsigned int cpu_id), @@ -97,58 +111,76 @@ DEFINE_EVENT(cpu, cpu_frequency, TP_ARGS(frequency, cpu_id) ); -TRACE_EVENT(machine_suspend, +TRACE_EVENT(device_pm_callback_start, - TP_PROTO(unsigned int state), + TP_PROTO(struct device *dev, const char *pm_ops, int event), - TP_ARGS(state), + TP_ARGS(dev, pm_ops, event), TP_STRUCT__entry( - __field( u32, state ) + __string(device, dev_name(dev)) + __string(driver, dev_driver_string(dev)) + __string(parent, dev->parent ? dev_name(dev->parent) : "none") + __string(pm_ops, pm_ops ? pm_ops : "none ") + __field(int, event) ), TP_fast_assign( - __entry->state = state; + __assign_str(device, dev_name(dev)); + __assign_str(driver, dev_driver_string(dev)); + __assign_str(parent, + dev->parent ? dev_name(dev->parent) : "none"); + __assign_str(pm_ops, pm_ops ? pm_ops : "none "); + __entry->event = event; ), - TP_printk("state=%lu", (unsigned long)__entry->state) + TP_printk("%s %s, parent: %s, %s[%s]", __get_str(driver), + __get_str(device), __get_str(parent), __get_str(pm_ops), + pm_verb_symbolic(__entry->event)) ); -TRACE_EVENT(device_pm_report_time, +TRACE_EVENT(device_pm_callback_end, - TP_PROTO(struct device *dev, const char *pm_ops, s64 ops_time, - char *pm_event_str, int error), + TP_PROTO(struct device *dev, int error), - TP_ARGS(dev, pm_ops, ops_time, pm_event_str, error), + TP_ARGS(dev, error), TP_STRUCT__entry( __string(device, dev_name(dev)) __string(driver, dev_driver_string(dev)) - __string(parent, dev->parent ? dev_name(dev->parent) : "none") - __string(pm_ops, pm_ops ? pm_ops : "none ") - __string(pm_event_str, pm_event_str) - __field(s64, ops_time) __field(int, error) ), TP_fast_assign( - const char *tmp = dev->parent ? dev_name(dev->parent) : "none"; - const char *tmp_i = pm_ops ? pm_ops : "none "; - __assign_str(device, dev_name(dev)); __assign_str(driver, dev_driver_string(dev)); - __assign_str(parent, tmp); - __assign_str(pm_ops, tmp_i); - __assign_str(pm_event_str, pm_event_str); - __entry->ops_time = ops_time; __entry->error = error; ), - /* ops_str has an extra space at the end */ - TP_printk("%s %s parent=%s state=%s ops=%snsecs=%lld err=%d", - __get_str(driver), __get_str(device), __get_str(parent), - __get_str(pm_event_str), __get_str(pm_ops), - __entry->ops_time, __entry->error) + TP_printk("%s %s, err=%d", + __get_str(driver), __get_str(device), __entry->error) +); + +TRACE_EVENT(suspend_resume, + + TP_PROTO(const char *action, int val, bool start), + + TP_ARGS(action, val, start), + + TP_STRUCT__entry( + __field(const char *, action) + __field(int, val) + __field(bool, start) + ), + + TP_fast_assign( + __entry->action = action; + __entry->val = val; + __entry->start = start; + ), + + TP_printk("%s[%u] %s", __entry->action, (unsigned int)__entry->val, + (__entry->start)?"begin":"end") ); DECLARE_EVENT_CLASS(wakeup_source, |