diff options
| author | Mike Leach <mike.leach@linaro.org> | 2023-03-31 06:56:43 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-04-04 09:39:56 -0300 |
| commit | 092772955568fa848b1e782e6cb3fa395eccea81 (patch) | |
| tree | d53c4ec0fa8d5279a964be826b76004080987ff4 /tools/include/linux | |
| parent | 84c3a2bb4c513ca9fd1326cf24d3729b769d9cf1 (diff) | |
| download | linux-stable-092772955568fa848b1e782e6cb3fa395eccea81.tar.gz linux-stable-092772955568fa848b1e782e6cb3fa395eccea81.tar.bz2 linux-stable-092772955568fa848b1e782e6cb3fa395eccea81.zip | |
perf cs-etm: Move mapping of Trace ID and cpu into helper function
The information to associate Trace ID and CPU will be changing.
Drivers will start outputting this as a hardware ID packet in the data
file which if present will be used in preference to the AUXINFO values.
To prepare for this we provide a helper functions to do the individual ID
mapping, and one to extract the IDs from the completed metadata blocks.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Acked-by: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Darren Hart <darren@os.amperecomputing.com>
Cc: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230331055645.26918-2-mike.leach@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/include/linux')
| -rw-r--r-- | tools/include/linux/coresight-pmu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/tools/include/linux/coresight-pmu.h b/tools/include/linux/coresight-pmu.h index 6c2fd6cc5a98..db9c7c0abb6a 100644 --- a/tools/include/linux/coresight-pmu.h +++ b/tools/include/linux/coresight-pmu.h @@ -7,9 +7,14 @@ #ifndef _LINUX_CORESIGHT_PMU_H #define _LINUX_CORESIGHT_PMU_H +#include <linux/bits.h> + #define CORESIGHT_ETM_PMU_NAME "cs_etm" #define CORESIGHT_ETM_PMU_SEED 0x10 +/* CoreSight trace ID is currently the bottom 7 bits of the value */ +#define CORESIGHT_TRACE_ID_VAL_MASK GENMASK(6, 0) + /* * Below are the definition of bit offsets for perf option, and works as * arbitrary values for all ETM versions. |