From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753508Ab0IQI3b (ORCPT ); Fri, 17 Sep 2010 04:29:31 -0400 Received: from hera.kernel.org ([140.211.167.34]:59348 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752425Ab0IQI3U (ORCPT ); Fri, 17 Sep 2010 04:29:20 -0400 Date: Fri, 17 Sep 2010 08:28:43 GMT From: tip-bot for Jean Pihet Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, jean.pihet@newoldbits.com, arjan@linux.intel.com, peterz@infradead.org, j-pihet@ti.com, khilman@deeprootsystems.com, tglx@linutronix.de, trenn@suse.de, mingo@elte.hu, len.brown@intel.com Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, jean.pihet@newoldbits.com, arjan@linux.intel.com, j-pihet@ti.com, peterz@infradead.org, khilman@deeprootsystems.com, tglx@linutronix.de, trenn@suse.de, len.brown@intel.com, mingo@elte.hu In-Reply-To: References: To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] tracing, perf: Add more power related events Message-ID: Git-Commit-ID: 74704ac6ea402d50c9543cb28247e6d9f521f7ae X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Fri, 17 Sep 2010 08:28:44 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 74704ac6ea402d50c9543cb28247e6d9f521f7ae Gitweb: http://git.kernel.org/tip/74704ac6ea402d50c9543cb28247e6d9f521f7ae Author: Jean Pihet AuthorDate: Tue, 7 Sep 2010 09:21:32 +0200 Committer: Ingo Molnar CommitDate: Fri, 17 Sep 2010 09:10:43 +0200 tracing, perf: Add more power related events This patch adds new generic events for dynamic power management tracing: - clock events class: used for clock enable/disable and for clock rate change, - power_domain events class: used for power domains transitions. The OMAP architecture will be using the new events for PM debugging, however the new events are made generic enough to be used by all platforms. Signed-off-by: Jean Pihet Acked-by: Thomas Renninger Cc: discuss@lesswatts.org Cc: linux-pm@lists.linux-foundation.org Cc: Thomas Renninger Cc: Arjan van de Ven Cc: Peter Zijlstra Cc: Len Brown Cc: Kevin Hilman LKML-Reference: Signed-off-by: Ingo Molnar --- include/trace/events/power.h | 90 ++++++++++++++++++++++++++++++++++++++++- 1 files changed, 87 insertions(+), 3 deletions(-) diff --git a/include/trace/events/power.h b/include/trace/events/power.h index 35a2a6e..286784d 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -10,12 +10,17 @@ #ifndef _TRACE_POWER_ENUM_ #define _TRACE_POWER_ENUM_ enum { - POWER_NONE = 0, - POWER_CSTATE = 1, - POWER_PSTATE = 2, + POWER_NONE = 0, + POWER_CSTATE = 1, /* C-State */ + POWER_PSTATE = 2, /* Fequency change or DVFS */ + POWER_SSTATE = 3, /* Suspend */ }; #endif +/* + * The power events are used for cpuidle & suspend (power_start, power_end) + * and for cpufreq (power_frequency) + */ DECLARE_EVENT_CLASS(power, TP_PROTO(unsigned int type, unsigned int state, unsigned int cpu_id), @@ -70,6 +75,85 @@ TRACE_EVENT(power_end, ); +/* + * The clock events are used for clock enable/disable and for + * clock rate change + */ +DECLARE_EVENT_CLASS(clock, + + TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id), + + TP_ARGS(name, state, cpu_id), + + TP_STRUCT__entry( + __string( name, name ) + __field( u64, state ) + __field( u64, cpu_id ) + ), + + TP_fast_assign( + __assign_str(name, name); + __entry->state = state; + __entry->cpu_id = cpu_id; + ), + + TP_printk("%s state=%lu cpu_id=%lu", __get_str(name), + (unsigned long)__entry->state, (unsigned long)__entry->cpu_id) +); + +DEFINE_EVENT(clock, clock_enable, + + TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id), + + TP_ARGS(name, state, cpu_id) +); + +DEFINE_EVENT(clock, clock_disable, + + TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id), + + TP_ARGS(name, state, cpu_id) +); + +DEFINE_EVENT(clock, clock_set_rate, + + TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id), + + TP_ARGS(name, state, cpu_id) +); + +/* + * The power domain events are used for power domains transitions + */ +DECLARE_EVENT_CLASS(power_domain, + + TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id), + + TP_ARGS(name, state, cpu_id), + + TP_STRUCT__entry( + __string( name, name ) + __field( u64, state ) + __field( u64, cpu_id ) + ), + + TP_fast_assign( + __assign_str(name, name); + __entry->state = state; + __entry->cpu_id = cpu_id; +), + + TP_printk("%s state=%lu cpu_id=%lu", __get_str(name), + (unsigned long)__entry->state, (unsigned long)__entry->cpu_id) +); + +DEFINE_EVENT(power_domain, power_domain_target, + + TP_PROTO(const char *name, unsigned int state, unsigned int cpu_id), + + TP_ARGS(name, state, cpu_id) +); + #endif /* _TRACE_POWER_H */ /* This part must be outside protection */