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linux-next/drivers/hwtracing/coresight
Suzuki K Poulose 5ecabe4a76 coresight: perf: Fix per cpu path management
We create a coresight trace path for each online CPU when
we start the event. We rely on the number of online CPUs
and then go on to allocate an array matching the "number of
online CPUs" for holding the path and then uses normal
CPU id as the index to the array. This is problematic as
we could have some offline CPUs causing us to access beyond
the actual array size (e.g, on a dual SMP system, if CPU0 is
offline, CPU1 could be really accessing beyond the array).
The solution is to switch to per-cpu array for holding the path.

Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-25 20:09:17 +02:00
..
coresight-catu.c coresight: catu: Plug in CATU as a backend for ETR buffer 2018-07-15 13:52:59 +02:00
coresight-catu.h coresight: catu: Plug in CATU as a backend for ETR buffer 2018-07-15 13:52:59 +02:00
coresight-cpu-debug.c coresight: Remove %px for printing pcsr value 2018-05-14 16:20:00 +02:00
coresight-dynamic-replicator.c coresight: Moving framework and drivers to SPDX identifier 2018-05-14 16:19:59 +02:00
coresight-etb10.c coresight: etb10: Fix handling of perf mode 2018-09-25 20:09:17 +02:00
coresight-etm3x-sysfs.c coresight: etm3x: Don't use contextID with PID namespaces 2018-07-15 13:52:56 +02:00
coresight-etm3x.c coresight: etm3x: Don't use contextID with PID namespaces 2018-07-15 13:52:56 +02:00
coresight-etm4x-sysfs.c coresight: etm4x: Don't use contextID with PID namespaces 2018-07-15 13:52:56 +02:00
coresight-etm4x.c coresight: ETM: Add support for Arm Cortex-A73 and Cortex-A35 2018-07-15 13:52:56 +02:00
coresight-etm4x.h coresight: etm4x: Don't use contextID with PID namespaces 2018-07-15 13:52:56 +02:00
coresight-etm-cp14.c coresight: Moving framework and drivers to SPDX identifier 2018-05-14 16:19:59 +02:00
coresight-etm-perf.c coresight: perf: Fix per cpu path management 2018-09-25 20:09:17 +02:00
coresight-etm-perf.h coresight: Moving framework and drivers to SPDX identifier 2018-05-14 16:19:59 +02:00
coresight-etm.h coresight: etm3x: Don't use contextID with PID namespaces 2018-07-15 13:52:56 +02:00
coresight-funnel.c coresight: Moving framework and drivers to SPDX identifier 2018-05-14 16:19:59 +02:00
coresight-priv.h coresight: Add helper for inserting synchronization packets 2018-07-15 13:52:57 +02:00
coresight-replicator.c coresight: Moving framework and drivers to SPDX identifier 2018-05-14 16:19:59 +02:00
coresight-stm.c coresight: Moving framework and drivers to SPDX identifier 2018-05-14 16:19:59 +02:00
coresight-tmc-etf.c coresight: Add helper for inserting synchronization packets 2018-07-15 13:52:57 +02:00
coresight-tmc-etr.c coresight: Use ERR_CAST instead of ERR_PTR 2018-09-25 20:09:17 +02:00
coresight-tmc.c coresight: tmc: Add configuration support for trace buffer size 2018-07-15 13:52:57 +02:00
coresight-tmc.h coresight: catu: Plug in CATU as a backend for ETR buffer 2018-07-15 13:52:59 +02:00
coresight-tpiu.c coresight: tpiu: Fix disabling timeouts 2018-07-15 13:52:59 +02:00
coresight.c coresight: Fix handling of sinks 2018-09-25 20:09:17 +02:00
Kconfig coresight: Introduce support for Coresight Address Translation Unit 2018-07-15 13:52:58 +02:00
Makefile coresight: Introduce support for Coresight Address Translation Unit 2018-07-15 13:52:58 +02:00
of_coresight.c coresight: Cleanup coresight DT bindings 2018-09-25 20:09:17 +02:00