linux/drivers/hwtracing/coresight
Mathieu Poirier 27a7e2a72c coresight: etm4x: Fix timestamp configuration when working from perf
When using the ETM4x tracers from the perf interface two trace options are
available: cycle accurate and timestamp.

Enabling the timestamp feature is done by setting TRCCONFIGR.TS (bit 11).
The position of the timestamp bit in that register coincidentally happens
to be the same as what was chosen to enable timestamping from the 'mode'
sysFS entry.  The code does the right thing but the semantic is wrong.

This patch sets TRCCONFIGR.TS explicitly, as it is done from the sysFS
interface.  That way timestamps are set the same way from both perf and
sysFS and there is no misunderstanding as to what is intended.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-01-25 11:46:42 +01:00
..
Kconfig coresight: stm: adding driver for CoreSight STM component 2016-05-03 14:59:30 -07:00
Makefile coresight: tmc: splitting driver in ETB/ETF and ETR components 2016-05-03 14:59:30 -07:00
coresight-etb10.c coresight: fix handling of ETM trace register access via sysfs 2016-08-31 13:05:43 +02:00
coresight-etm-cp14.c coresight: moving to new "hwtracing" directory 2015-04-03 16:17:04 +02:00
coresight-etm-perf.c coresight: fix kernel panic caused by invalid CPU 2017-01-25 11:46:42 +01:00
coresight-etm-perf.h coresight: etm-perf: configuring filters from perf core 2016-08-31 13:05:43 +02:00
coresight-etm.h coresight: etm3x: Adding missing features of Coresight PTM components 2016-11-29 20:05:32 +01:00
coresight-etm3x-sysfs.c coresight: etm3x: Adding missing features of Coresight PTM components 2016-11-29 20:05:32 +01:00
coresight-etm3x.c cpu/hotplug: Cleanup state names 2016-12-25 10:47:44 +01:00
coresight-etm4x-sysfs.c coresight: remove duplicated enumeration 2016-08-31 13:05:43 +02:00
coresight-etm4x.c coresight: etm4x: Fix timestamp configuration when working from perf 2017-01-25 11:46:42 +01:00
coresight-etm4x.h coresight: etm4x: Fix enabling of cycle accurate tracing in perf. 2017-01-25 11:46:42 +01:00
coresight-funnel.c coresight: Use local coresight_desc instances 2016-08-31 13:05:43 +02:00
coresight-priv.h coresight: reset "enable_sink" flag when need be 2016-11-29 20:05:32 +01:00
coresight-replicator-qcom.c coresight: Use local coresight_desc instances 2016-08-31 13:05:43 +02:00
coresight-replicator.c coresight: Use local coresight_desc instances 2016-08-31 13:05:43 +02:00
coresight-stm.c coresight: STM: Balance enable/disable 2017-01-19 12:42:25 +01:00
coresight-tmc-etf.c coresight: tmc: Get rid of mode parameter for helper routines 2016-11-29 20:05:32 +01:00
coresight-tmc-etr.c coresight: tmc: Remove duplicate memset 2016-11-29 20:05:32 +01:00
coresight-tmc.c coresight: tmc: mark symbols static where possible 2016-09-09 13:53:00 +02:00
coresight-tmc.h coresight: tmc: Cleanup operation mode handling 2016-11-29 20:05:32 +01:00
coresight-tpiu.c coresight: Use local coresight_desc instances 2016-08-31 13:05:43 +02:00
coresight.c coresight: reset "enable_sink" flag when need be 2016-11-29 20:05:32 +01:00
of_coresight.c hwtracing: coresight: of_coresight: add missing of_node_put after calling of_parse_phandle 2016-08-31 13:05:43 +02:00