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 buffers. Work on ETMv4 and other type of sink buffers will follow once a foundation has been established. Enhancement to the perf command line tool can be found here [1]. It is based on v4.2 but a rebase to v4.3-rcX will be available shortly. Best regards, Mathieu [1]. https://git.linaro.org/people/mathieu.poirier/coresight.git/shortlog/refs/heads/perf-v4.2 Mathieu Poirier (20): coresight: etm3x: splitting 'etm_enable_hw()' operations coresight: etm3x: implementing 'is_enabled()' API coresight: etm3x: implementing 'cpu_id()' API coresight: etm3x: using chip logic to start/stop traces coresight: etm3x: adapting default tracer setting for perf coresight: etm3x: unlocking tracer in default arch init coresight: etb10: implementing the setup_aux() API coresight: etb10: implementing buffer set and unset APIs coresight: etb10: implementing buffer update API coresight: etb10: adding snapshot mode feature coresight: making coresight_build_paths() public coresight: keeping track of enabled sink buffers coresight: etm-perf: new PMU driver for ETM tracers coresight: etm-perf: implementing 'event_init()' API coresight: etm-perf: implementing 'setup_aux()' API coresight: etm-perf: implementing trace related APIs coresight: etm-perf: adding symbolic link for CPUs coresight: etm3x: pushing down perf configuration to tracer coresight: etm3x: implementing perf's user/kernel mode coresight: updating documentation to reflect integration with perf Documentation/trace/coresight.txt | 116 ++++++- MAINTAINERS | 1 + drivers/hwtracing/coresight/Makefile | 2 +- drivers/hwtracing/coresight/coresight-etb10.c | 232 ++++++++++++++ drivers/hwtracing/coresight/coresight-etm-perf.c | 383 +++++++++++++++++++++++ drivers/hwtracing/coresight/coresight-etm-perf.h | 27 ++ drivers/hwtracing/coresight/coresight-etm.h | 2 + drivers/hwtracing/coresight/coresight-etm3x.c | 309 ++++++++++++++---- drivers/hwtracing/coresight/coresight-priv.h | 4 + drivers/hwtracing/coresight/coresight.c | 14 +- include/linux/coresight-pmu.h | 18 ++ include/linux/coresight.h | 32 +- 12 files changed, 1075 insertions(+), 65 deletions(-) create mode 100644 drivers/hwtracing/coresight/coresight-etm-perf.c create mode 100644 drivers/hwtracing/coresight/coresight-etm-perf.h create mode 100644 include/linux/coresight-pmu.h -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
