diff options
| author | Mike Leach <mike.leach@linaro.org> | 2023-01-16 12:49:26 +0000 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2023-01-19 10:16:47 +0000 |
| commit | aa19bb4c35834dd574b36d482cc44c78816e6fcd (patch) | |
| tree | 6bca47e2b59b934b9c5d566a7bd5f7a3d5a322c7 /include/linux/coresight-pmu.h | |
| parent | 7d30d480a6910b643aae8603a3905c9e22327e37 (diff) | |
coresight: events: PERF_RECORD_AUX_OUTPUT_HW_ID used for Trace ID
Use the perf_report_aux_output_id() call to output the CoreSight trace ID
and associated CPU as a PERF_RECORD_AUX_OUTPUT_HW_ID record in the
perf.data file.
Signed-off-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230116124928.5440-14-mike.leach@linaro.org
Diffstat (limited to 'include/linux/coresight-pmu.h')
| -rw-r--r-- | include/linux/coresight-pmu.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/coresight-pmu.h b/include/linux/coresight-pmu.h index 624f4843453e..51ac441a37c3 100644 --- a/include/linux/coresight-pmu.h +++ b/include/linux/coresight-pmu.h @@ -7,6 +7,8 @@ #ifndef _LINUX_CORESIGHT_PMU_H #define _LINUX_CORESIGHT_PMU_H +#include <linux/bits.h> + #define CORESIGHT_ETM_PMU_NAME "cs_etm" /* @@ -43,4 +45,16 @@ #define ETM4_CFG_BIT_RETSTK 12 #define ETM4_CFG_BIT_VMID_OPT 15 +/* + * Interpretation of the PERF_RECORD_AUX_OUTPUT_HW_ID payload. + * Used to associate a CPU with the CoreSight Trace ID. + * [07:00] - Trace ID - uses 8 bits to make value easy to read in file. + * [59:08] - Unused (SBZ) + * [63:60] - Version + */ +#define CS_AUX_HW_ID_TRACE_ID_MASK GENMASK_ULL(7, 0) +#define CS_AUX_HW_ID_VERSION_MASK GENMASK_ULL(63, 60) + +#define CS_AUX_HW_ID_CURR_VERSION 0 + #endif |