From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 400511A114C for ; Mon, 4 Jan 2016 20:25:51 +1100 (AEDT) Received: from e28smtp07.in.ibm.com (e28smtp07.in.ibm.com [125.16.236.7]) (using TLSv1 with cipher CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 6EEE91402ED for ; Mon, 4 Jan 2016 20:25:50 +1100 (AEDT) Received: from localhost by e28smtp07.in.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Mon, 4 Jan 2016 14:55:47 +0530 Received: from d28relay04.in.ibm.com (d28relay04.in.ibm.com [9.184.220.61]) by d28dlp02.in.ibm.com (Postfix) with ESMTP id 35B74394005B for ; Mon, 4 Jan 2016 14:55:42 +0530 (IST) Received: from d28av05.in.ibm.com (d28av05.in.ibm.com [9.184.220.67]) by d28relay04.in.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u049PdxE8520012 for ; Mon, 4 Jan 2016 14:55:40 +0530 Received: from d28av05.in.ibm.com (localhost [127.0.0.1]) by d28av05.in.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u049PcqA007551 for ; Mon, 4 Jan 2016 14:55:39 +0530 From: Shilpasri G Bhat To: linuxppc-dev@ozlabs.org, linux-kernel@vger.kernel.org Cc: rjw@rjwysocki.net, viresh.kumar@linaro.org, linux-pm@vger.kernel.org, pc@us.ibm.com, Shilpasri G Bhat , Ingo Molnar , Steven Rostedt Subject: [PATCH v3 1/2] cpufreq: powernv/tracing: Add powernv_throttle tracepoint Date: Mon, 4 Jan 2016 14:55:26 +0530 Message-Id: <1451899527-14359-2-git-send-email-shilpa.bhat@linux.vnet.ibm.com> In-Reply-To: <1451899527-14359-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com> References: <1451686914-3761-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com> <1451899527-14359-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com> List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , This patch adds the powernv_throttle tracepoint to trace the CPU frequency throttling event, which is used by the powernv-cpufreq driver in POWER8. Signed-off-by: Shilpasri G Bhat CC: Ingo Molnar CC: Steven Rostedt --- No changes from v2. Changes from v1: - Export the tracepoint include/trace/events/power.h | 22 ++++++++++++++++++++++ kernel/trace/power-traces.c | 1 + 2 files changed, 23 insertions(+) diff --git a/include/trace/events/power.h b/include/trace/events/power.h index 284244e..19e5030 100644 --- a/include/trace/events/power.h +++ b/include/trace/events/power.h @@ -38,6 +38,28 @@ DEFINE_EVENT(cpu, cpu_idle, TP_ARGS(state, cpu_id) ); +TRACE_EVENT(powernv_throttle, + + TP_PROTO(int chip_id, const char *reason, int pmax), + + TP_ARGS(chip_id, reason, pmax), + + TP_STRUCT__entry( + __field(int, chip_id) + __string(reason, reason) + __field(int, pmax) + ), + + TP_fast_assign( + __entry->chip_id = chip_id; + __assign_str(reason, reason); + __entry->pmax = pmax; + ), + + TP_printk("Chip %d Pmax %d %s", __entry->chip_id, + __entry->pmax, __get_str(reason)) +); + TRACE_EVENT(pstate_sample, TP_PROTO(u32 core_busy, diff --git a/kernel/trace/power-traces.c b/kernel/trace/power-traces.c index eb4220a..81b8745 100644 --- a/kernel/trace/power-traces.c +++ b/kernel/trace/power-traces.c @@ -15,4 +15,5 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(suspend_resume); EXPORT_TRACEPOINT_SYMBOL_GPL(cpu_idle); +EXPORT_TRACEPOINT_SYMBOL_GPL(powernv_throttle); -- 1.9.3