€•5?Œsphinx.addnodes”Œdocument”“”)”}”(Œ rawsource”Œ”Œchildren”]”(Œ translations”Œ LanguagesNode”“”)”}”(hhh]”(hŒ pending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ refdomain”Œstd”Œreftype”Œdoc”Œ reftarget”Œ&/translations/zh_CN/trace/events-power”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ&/translations/zh_TW/trace/events-power”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ&/translations/it_IT/trace/events-power”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ&/translations/ja_JP/trace/events-power”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ&/translations/ko_KR/trace/events-power”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ&/translations/sp_SP/trace/events-power”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒSubsystem Trace Points: power”h]”hŒSubsystem Trace Points: power”…””}”(hh¨hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hh£hžhhŸŒ@/var/lib/git/docbuild/linux/Documentation/trace/events-power.rst”h KubhŒ paragraph”“”)”}”(hŒŒThe power tracing system captures events related to power transitions within the kernel. Broadly speaking there are three major subheadings:”h]”hŒŒThe power tracing system captures events related to power transitions within the kernel. Broadly speaking there are three major subheadings:”…””}”(hh¹hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h Khh£hžhubhŒ block_quote”“”)”}”(hŒÄ- Power state switch which reports events related to suspend (S-states), cpuidle (C-states) and cpufreq (P-states) - System clock related changes - Power domains related changes and transitions ”h]”hŒ bullet_list”“”)”}”(hhh]”(hŒ list_item”“”)”}”(hŒpPower state switch which reports events related to suspend (S-states), cpuidle (C-states) and cpufreq (P-states)”h]”h¸)”}”(hŒpPower state switch which reports events related to suspend (S-states), cpuidle (C-states) and cpufreq (P-states)”h]”hŒpPower state switch which reports events related to suspend (S-states), cpuidle (C-states) and cpufreq (P-states)”…””}”(hhØhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhÔubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhhÏubhÓ)”}”(hŒSystem clock related changes”h]”h¸)”}”(hhîh]”hŒSystem clock related changes”…””}”(hhðhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K hhìubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhhÏubhÓ)”}”(hŒ.Power domains related changes and transitions ”h]”h¸)”}”(hŒ-Power domains related changes and transitions”h]”hŒ-Power domains related changes and transitions”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K hjubah}”(h]”h ]”h"]”h$]”h&]”uh1hÒhhÏubeh}”(h]”h ]”h"]”h$]”h&]”Œbullet”Œ-”uh1hÍhŸh¶h KhhÉubah}”(h]”h ]”h"]”h$]”h&]”uh1hÇhŸh¶h Khh£hžhubh¸)”}”(hŒUThis document describes what each of the tracepoints is and why they might be useful.”h]”hŒUThis document describes what each of the tracepoints is and why they might be useful.”…””}”(hj)hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K hh£hžhubh¸)”}”(hŒThe power domain events are used for power domains transitions”…””}”(hj#hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K@hjhžhubjv)”}”(hŒ/power_domain_target "%s state=%lu cpu_id=%lu"”h]”hŒ/power_domain_target "%s state=%lu cpu_id=%lu"”…””}”hj1sbah}”(h]”h ]”h"]”h$]”h&]”j…j†uh1juhŸh¶h KChjhžhubh¸)”}”(hŒzThe first parameter gives the power domain name (e.g. "mpu_pwrdm"). The second parameter is the power domain target state.”h]”hŒ~The first parameter gives the power domain name (e.g. “mpu_pwrdmâ€). The second parameter is the power domain target state.”…””}”(hj?hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KEhjhžhubeh}”(h]”Œpower-domains-events”ah ]”h"]”Œ3. power domains events”ah$]”h&]”uh1h¡hh£hžhhŸh¶h K?ubh¢)”}”(hhh]”(h§)”}”(hŒ4. PM QoS events”h]”hŒ4. PM QoS events”…””}”(hjXhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h¦hjUhžhhŸh¶h KIubh¸)”}”(hŒ\The PM QoS events are used for QoS add/update/remove request and for target/flags update. ::”h]”hŒYThe PM QoS events are used for QoS add/update/remove request and for target/flags update.”…””}”(hjfhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KJhjUhžhubjv)”}”(hŒ™pm_qos_update_target "action=%s prev_value=%d curr_value=%d" pm_qos_update_flags "action=%s prev_value=0x%x curr_value=0x%x"”h]”hŒ™pm_qos_update_target "action=%s prev_value=%d curr_value=%d" pm_qos_update_flags "action=%s prev_value=0x%x curr_value=0x%x"”…””}”hjtsbah}”(h]”h ]”h"]”h$]”h&]”j…j†uh1juhŸh¶h KNhjUhžhubh¸)”}”(hŒ§The first parameter gives the QoS action name (e.g. "ADD_REQ"). The second parameter is the previous QoS value. The third parameter is the current QoS value to update.”h]”hŒ«The first parameter gives the QoS action name (e.g. “ADD_REQâ€). The second parameter is the previous QoS value. The third parameter is the current QoS value to update.”…””}”(hj‚hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KQhjUhžhubh¸)”}”(hŒJThere are also events used for device PM QoS add/update/remove request. ::”h]”hŒGThere are also events used for device PM QoS add/update/remove request.”…””}”(hjhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KUhjUhžhubjv)”}”(hŒËdev_pm_qos_add_request "device=%s type=%s new_value=%d" dev_pm_qos_update_request "device=%s type=%s new_value=%d" dev_pm_qos_remove_request "device=%s type=%s new_value=%d"”h]”hŒËdev_pm_qos_add_request "device=%s type=%s new_value=%d" dev_pm_qos_update_request "device=%s type=%s new_value=%d" dev_pm_qos_remove_request "device=%s type=%s new_value=%d"”…””}”hjžsbah}”(h]”h ]”h"]”h$]”h&]”j…j†uh1juhŸh¶h KXhjUhžhubh¸)”}”(hŒâThe first parameter gives the device name which tries to add/update/remove QoS requests. The second parameter gives the request type (e.g. "DEV_PM_QOS_RESUME_LATENCY"). The third parameter is value to be added/updated/removed.”h]”hŒæThe first parameter gives the device name which tries to add/update/remove QoS requests. The second parameter gives the request type (e.g. “DEV_PM_QOS_RESUME_LATENCYâ€). The third parameter is value to be added/updated/removed.”…””}”(hj¬hžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h K\hjUhžhubh¸)”}”(hŒLAnd, there are events used for CPU latency QoS add/update/remove request. ::”h]”hŒIAnd, there are events used for CPU latency QoS add/update/remove request.”…””}”(hjºhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KahjUhžhubjv)”}”(hŒnpm_qos_add_request "value=%d" pm_qos_update_request "value=%d" pm_qos_remove_request "value=%d"”h]”hŒnpm_qos_add_request "value=%d" pm_qos_update_request "value=%d" pm_qos_remove_request "value=%d"”…””}”hjÈsbah}”(h]”h ]”h"]”h$]”h&]”j…j†uh1juhŸh¶h KdhjUhžhubh¸)”}”(hŒ7The parameter is the value to be added/updated/removed.”h]”hŒ7The parameter is the value to be added/updated/removed.”…””}”(hjÖhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hŸh¶h KhhjUhžhubeh}”(h]”Œ pm-qos-events”ah ]”h"]”Œ4. pm qos events”ah$]”h&]”uh1h¡hh£hžhhŸh¶h KIubeh}”(h]”Œsubsystem-trace-points-power”ah ]”h"]”Œsubsystem trace points: power”ah$]”h&]”uh1h¡hhhžhhŸh¶h Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”h¶uh1hŒcurrent_source”NŒ current_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(h¦NŒ generator”NŒ datestamp”NŒ source_link”NŒ source_url”NŒ toc_backlinks”Œentry”Œfootnote_backlinks”KŒ sectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒ strip_classes”NŒ report_level”KŒ halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ traceback”ˆŒinput_encoding”Œ utf-8-sig”Œinput_encoding_error_handler”Œstrict”Œoutput_encoding”Œutf-8”Œoutput_encoding_error_handler”jŒerror_encoding”Œutf-8”Œerror_encoding_error_handler”Œbackslashreplace”Œ language_code”Œen”Œrecord_dependencies”NŒconfig”NŒ id_prefix”hŒauto_id_prefix”Œid”Œ dump_settings”NŒdump_internals”NŒdump_transforms”NŒdump_pseudo_xml”NŒexpose_internals”NŒstrict_visitor”NŒ_disable_config”NŒ_source”h¶Œ _destination”NŒ _config_files”]”Œ7/var/lib/git/docbuild/linux/Documentation/docutils.conf”aŒfile_insertion_enabled”ˆŒ raw_enabled”KŒline_length_limit”M'Œpep_references”NŒ pep_base_url”Œhttps://peps.python.org/”Œpep_file_url_template”Œpep-%04d”Œrfc_references”NŒ rfc_base_url”Œ&https://datatracker.ietf.org/doc/html/”Œ tab_width”KŒtrim_footnote_reference_space”‰Œsyntax_highlight”Œlong”Œ smart_quotes”ˆŒsmartquotes_locales”]”Œcharacter_level_inline_markup”‰Œdoctitle_xform”‰Œ docinfo_xform”KŒsectsubtitle_xform”‰Œ image_loading”Œlink”Œembed_stylesheet”‰Œcloak_email_addresses”ˆŒsection_self_link”‰Œenv”NubŒreporter”NŒindirect_targets”]”Œsubstitution_defs”}”Œsubstitution_names”}”Œrefnames”}”Œrefids”}”Œnameids”}”(jñjîjÌjÉjÄjÁjj jRjOjéjæuŒ nametypes”}”(jñ‰j̉jĉj‰jR‰jé‰uh}”(jîh£jÉjEjÁjVj jÏjOjjæjUuŒ footnote_refs”}”Œ citation_refs”}”Œ autofootnotes”]”Œautofootnote_refs”]”Œsymbol_footnotes”]”Œsymbol_footnote_refs”]”Œ footnotes”]”Œ citations”]”Œautofootnote_start”KŒsymbol_footnote_start”KŒ id_counter”Œ collections”ŒCounter”“”}”…”R”Œparse_messages”]”(hŒsystem_message”“”)”}”(hhh]”h¸)”}”(hŒfPossible title underline, too short for the title. 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Treating it as ordinary text because it’s so short.”…””}”(hjµhžhhŸNh Nubah}”(h]”h ]”h"]”h$]”h&]”uh1h·hj²ubah}”(h]”h ]”h"]”h$]”h&]”Œlevel”KŒtype”j”Œline”KbŒsource”h¶uh1jyhjUhžhhŸh¶h KbubeŒtransform_messages”]”Œ transformer”NŒ include_log”]”Œ decoration”Nhžhub.