diff options
| author | Mike Leach <[email protected]> | 2023-03-31 06:56:45 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2023-04-04 09:39:57 -0300 |
| commit | b6521ea2a033b0c49669bd60d69ca16d0746dcea (patch) | |
| tree | 1d0a98ef0cd10104cdf76ff70cdfeb1406ba96da /tools/include/linux | |
| parent | e5fa5b4110fe7d0ab08252943fc47072a7ff6c9d (diff) | |
perf cs-etm: Handle PERF_RECORD_AUX_OUTPUT_HW_ID packet
When using dynamically assigned CoreSight trace IDs the drivers can output
the ID / CPU association as a PERF_RECORD_AUX_OUTPUT_HW_ID packet.
Update cs-etm decoder to handle this packet by setting the CPU/Trace ID
mapping.
Reviewed-by: James Clark <[email protected]>
Signed-off-by: Mike Leach <[email protected]>
Acked-by: Suzuki Poulouse <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Darren Hart <[email protected]>
Cc: Ganapatrao Kulkarni <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/include/linux')
| -rw-r--r-- | tools/include/linux/coresight-pmu.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/include/linux/coresight-pmu.h b/tools/include/linux/coresight-pmu.h index 1760f9a574b0..cef3b1c25335 100644 --- a/tools/include/linux/coresight-pmu.h +++ b/tools/include/linux/coresight-pmu.h @@ -31,6 +31,9 @@ */ #define CORESIGHT_TRACE_ID_UNUSED_FLAG BIT(31) +/* Value to set for unused trace ID values */ +#define CORESIGHT_TRACE_ID_UNUSED_VAL 0x7F + /* * Below are the definition of bit offsets for perf option, and works as * arbitrary values for all ETM versions. @@ -55,4 +58,16 @@ #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 |