[PATCH V7 00/24] Coresight integration with perf

From	Mathieu Poirier <mathieu.poirier@linaro.org>
Newsgroups	linux.kernel
Subject	[PATCH V7 00/24] Coresight integration with perf
Date	2015-12-18 22:00 +0100
Message-ID	<qHai5-280-7@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

Show all headers | View raw

This patchset aims to integrate configuration and control of
the Coresight tracers with the perf sub-system.

The goal is to use PMUs to represent tracers and the auxiliary
buffer enhancement to collect processor traces.  As such a lot
of work is done to move the current Coresight sysFS oriented
configuration and control commands to perf's AUX API.

For the time being the work concentrates on ETMv3 and ETB1.0
sink buffer.  Work on ETMv4 and other type of sink buffers
will follow once a foundation has been established.

Best regards,
Mathieu

Changes since V6:
* Rebased to 4.4-rc5.
* Thanks to [1], all tracer configuration now happens
  when events are scheduled.

[1]. https://lwn.net/Articles/667573/

Changes since V5:
* Addressed Arnaldo's comment about using a struct perf_evlist rather
  than a struct perf_session.
* Addressed kbuild test robot's anomaly report [1].
* Moved perf_aux_output_{begin|end} to etm_event_{start|stop} in
  accordance with [2].

[1]. https://lkml.org/lkml/2015/11/30/46
[2]. http://thread.gmane.org/gmane.linux.kernel/2099328/focus=2099343

Changes since V4:
* Reworked the way event configuration information is kept, fixing
  a few corner cases when doing per CPU tracing.
* Rebased on 4.4-rc1.
* Added 'Cc' to specific perf related patches in the hope of suscitating
  interest from reviewers, i.e perf maintainers.

Changes since V3:
* Rebased to GKH's char-misc-next tree (e2d8680741ed).

Changes since V2:
* Rebased to v4.3.
* Used the -M option to "git format-patch".
* Decoupled tracers and path - both are now completely independent.
* Moved path enablement/release to Perf's add/del functions.
* Moved PM runtime operations to the coresight core rather than
  individual drivers.
* Enhanced mutual exclusion scheme between perf and sysFS.
* Removed architecture specific define in perf cmd line tool.
* Got rid of unused fields in structure 'cs_buffers'.
* Enhanced changelog for patch 16/26.

Changes since V1:
 * Fixed typos in typographical error in documentation.
 * Moved to a multi session support scheme.
 * Split static and dynamic tracer configuration.
 * Fixed configuration for user and kernel space tracing.
 * Using WARN_ON_ONCE() rather than WARN_ON().
 * Implemented strategy to prevent tracers from being used simultaneously.
 * Changed sink_ops::unset_buffer() to sink_ops::reset_buffer().
 * Moves ETM's sysFS interface from driver core to dedicated file.
 * Removed spinlock in "etm_cpu_id()".
 * Aggregated PMU driver pieces in a single patch.
 * Added user space changes and rebased everything to v4.3-rc5. 

Mathieu Poirier (24):
  coresight: implementing 'cpu_id()' API
  coresight: associating path with session rather than tracer
  coresight: add API to get sink from path
  coresight: moving PM runtime operations to core framework
  coresight: etm3x: moving etm_readl/writel to header file
  coresight: etm3x: moving sysFS entries to dedicated file
  coresight: etm3x: unlocking tracers in default arch init
  coresight: etm3x: splitting struct etm_drvdata
  coresight: etm3x: adding operation mode for etm_enable()
  coresight: etm3x: set progbit to stop trace collection
  coresight: etm3x: changing default trace configuration
  coresight: etm3x: consolidating initial config
  coresight: etm3x: implementing user/kernel mode tracing
  coresight: etm3x: implementing perf_enable/disable() API
  coresight: etb10: moving to local atomic operations
  coresight: etb10: adding operation mode for sink->enable()
  coresight: etb10: implementing AUX space API
  coresight: updating documentation to reflect integration with perf
  coresight: etm-perf: new PMU driver for ETM tracers
  coresight: introducing a global trace ID function
  perf tools: making function set_max_cpu_num() non static
  perf tools: adding perf_evlist to *info_priv_size()
  perf tools: making coresight PMU listable
  perf tools: adding coresight etm PMU record capabilities

 Documentation/trace/coresight.txt                  |  138 +-
 MAINTAINERS                                        |    4 +
 drivers/hwtracing/coresight/Kconfig                |    1 +
 drivers/hwtracing/coresight/Makefile               |    4 +-
 drivers/hwtracing/coresight/coresight-etb10.c      |  276 ++-
 drivers/hwtracing/coresight/coresight-etm-perf.c   |  386 +++++
 drivers/hwtracing/coresight/coresight-etm-perf.h   |   32 +
 drivers/hwtracing/coresight/coresight-etm.h        |  142 +-
 .../hwtracing/coresight/coresight-etm3x-sysfs.c    | 1272 ++++++++++++++
 drivers/hwtracing/coresight/coresight-etm3x.c      | 1824 +++++---------------
 drivers/hwtracing/coresight/coresight-etm4x.c      |   10 +-
 drivers/hwtracing/coresight/coresight-funnel.c     |    2 -
 drivers/hwtracing/coresight/coresight-priv.h       |   15 +
 .../coresight/coresight-replicator-qcom.c          |    4 -
 drivers/hwtracing/coresight/coresight-replicator.c |    2 -
 drivers/hwtracing/coresight/coresight-tmc.c        |    7 +-
 drivers/hwtracing/coresight/coresight-tpiu.c       |    4 +-
 drivers/hwtracing/coresight/coresight.c            |  330 ++--
 include/linux/coresight-pmu.h                      |   39 +
 include/linux/coresight.h                          |   34 +-
 tools/perf/arch/arm/util/Build                     |    2 +
 tools/perf/arch/arm/util/auxtrace.c                |   48 +
 tools/perf/arch/arm/util/cs_etm.c                  |  466 +++++
 tools/perf/arch/arm/util/cs_etm.h                  |   44 +
 tools/perf/arch/arm/util/pmu.c                     |   34 +
 tools/perf/arch/x86/util/intel-bts.c               |    4 +-
 tools/perf/arch/x86/util/intel-pt.c                |    4 +-
 tools/perf/config/Makefile                         |   17 +-
 tools/perf/util/auxtrace.c                         |    8 +-
 tools/perf/util/auxtrace.h                         |    7 +-
 tools/perf/util/cpumap.c                           |    2 +-
 tools/perf/util/cpumap.h                           |    1 +
 32 files changed, 3518 insertions(+), 1645 deletions(-)
 create mode 100644 drivers/hwtracing/coresight/coresight-etm-perf.c
 create mode 100644 drivers/hwtracing/coresight/coresight-etm-perf.h
 create mode 100644 drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
 create mode 100644 include/linux/coresight-pmu.h
 create mode 100644 tools/perf/arch/arm/util/auxtrace.c
 create mode 100644 tools/perf/arch/arm/util/cs_etm.c
 create mode 100644 tools/perf/arch/arm/util/cs_etm.h
 create mode 100644 tools/perf/arch/arm/util/pmu.c

-- 
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

[PATCH V7 00/24] Coresight integration with perf Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:00 +0100
  [PATCH V7 20/24] coresight: introducing a global trace ID function Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 02/24] coresight: associating path with session rather than tracer Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
    Re: [PATCH V7 02/24] coresight: associating path with session rather  than tracer Rabin Vincent <rabin@rab.in> - 2015-12-20 16:30 +0100
      Re: [PATCH V7 02/24] coresight: associating path with session rather  than tracer Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-23 17:30 +0100
  [PATCH V7 23/24] perf tools: making coresight PMU listable Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 24/24] perf tools: adding coresight etm PMU record capabilities Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
    Re: [PATCH V7 24/24] perf tools: adding coresight etm PMU record  capabilities Rabin Vincent <rabin@rab.in> - 2015-12-19 18:30 +0100
      Re: [PATCH V7 24/24] perf tools: adding coresight etm PMU record capabilities Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-23 17:50 +0100
  [PATCH V7 18/24] coresight: updating documentation to reflect integration with perf Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 10/24] coresight: etm3x: set progbit to stop trace collection Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 19/24] coresight: etm-perf: new PMU driver for ETM tracers Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 14/24] coresight: etm3x: implementing perf_enable/disable() API Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 11/24] coresight: etm3x: changing default trace configuration Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 04/24] coresight: moving PM runtime operations to core framework Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
    Re: [PATCH V7 04/24] coresight: moving PM runtime operations to core  framework Rabin Vincent <rabin@rab.in> - 2015-12-19 18:20 +0100
      Re: [PATCH V7 04/24] coresight: moving PM runtime operations to core framework Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-23 17:30 +0100
        Re: [PATCH V7 04/24] coresight: moving PM runtime operations to core  framework Rabin Vincent <rabin@rab.in> - 2015-12-24 20:30 +0100
  [PATCH V7 12/24] coresight: etm3x: consolidating initial config Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 21/24] perf tools: making function set_max_cpu_num() non static Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 17/24] coresight: etb10: implementing AUX space API Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
    Re: [PATCH V7 17/24] coresight: etb10: implementing AUX space API Rabin Vincent <rabin@rab.in> - 2015-12-19 18:30 +0100
      Re: [PATCH V7 17/24] coresight: etb10: implementing AUX space API Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-23 17:40 +0100
  [PATCH V7 22/24] perf tools: adding perf_evlist to *info_priv_size() Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 16/24] coresight: etb10: adding operation mode for sink->enable() Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 15/24] coresight: etb10: moving to local atomic operations Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 07/24] coresight: etm3x: unlocking tracers in default arch init Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 13/24] coresight: etm3x: implementing user/kernel mode tracing Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 03/24] coresight: add API to get sink from path Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  [PATCH V7 09/24] coresight: etm3x: adding operation mode for etm_enable() Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-18 22:10 +0100
  Re: [PATCH V7 00/24] Coresight integration with perf Rabin Vincent <rabin@rab.in> - 2015-12-19 18:50 +0100
    Re: [PATCH V7 00/24] Coresight integration with perf Mathieu Poirier <mathieu.poirier@linaro.org> - 2015-12-23 17:30 +0100

csiph-web