From: mike.leach@linaro.org (Mike Leach)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/3] drivers: coresight: Adds return stack option handling.
Date: Tue, 11 Jul 2017 12:25:48 +0100 [thread overview]
Message-ID: <1499772351-2210-1-git-send-email-mike.leach@linaro.org> (raw)
Trace return stack is a PTM and ETMv4 programmable option to reduce the
amount of trace genrated by omitting addresses from the trace stream
and inferring them from a local stack of return address values saved when
branch and link instructions are traced.
Adds 'retstack' as a command line option to cs_etm event in perf.
Adds support to program PTM / ETMv4 hardware to use feature.
Mike Leach (3):
coresight: pmu: Adds return stack option to perf coresight pmu
coresight: ptm: Adds trace return stack option programming for PTM.
coresight: etm4x: Adds trace return stack option programming for
ETMv4.
drivers/hwtracing/coresight/coresight-etm-perf.c | 2 ++
drivers/hwtracing/coresight/coresight-etm.h | 1 +
drivers/hwtracing/coresight/coresight-etm3x.c | 18 +++++++++++++++---
drivers/hwtracing/coresight/coresight-etm4x.c | 4 ++++
include/linux/coresight-pmu.h | 1 +
tools/include/linux/coresight-pmu.h | 1 +
6 files changed, 24 insertions(+), 3 deletions(-)
--
2.7.4
next reply other threads:[~2017-07-11 11:25 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-11 11:25 Mike Leach [this message]
2017-07-11 11:25 ` [PATCH 1/3] coresight: pmu: Adds return stack option to perf coresight pmu Mike Leach
2017-07-11 11:25 ` [PATCH 2/3] coresight: ptm: Adds trace return stack option programming for PTM Mike Leach
2017-07-11 11:25 ` [PATCH 3/3] coresight: etm4x: Adds trace return stack option programming for ETMv4 Mike Leach
2017-07-12 15:15 ` [PATCH 0/3] drivers: coresight: Adds return stack option handling Mathieu Poirier
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