diff options
| author | Yicong Yang <yangyicong@hisilicon.com> | 2026-01-21 18:15:41 +0800 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2026-01-21 10:32:26 +0000 |
| commit | 5da8c55dd879347db64a1d28e66f6d7f62652373 (patch) | |
| tree | 45f7097b402076cea8e9577fe164f631f8918a46 /drivers/hwtracing | |
| parent | 4d9024d14d1bacb097f33ef7d3ed1696d6a46c88 (diff) | |
coresight: tmc: Add missing doc including reading and etr_mode of struct tmc_drvdata
tmc_drvdata::reading is used to indicate whether a reading process
is performed through /dev/xyz.tmc.
tmc_drvdata::etr_mode is used to store the Coresight TMC-ETR buffer
mode selected by the user.
Document them.
Reviewed-by: James Clark <james.clark@linaro.org>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: Junhao He <hejunhao3@h-partners.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20260121101543.2017014-2-wangyushan12@huawei.com
Diffstat (limited to 'drivers/hwtracing')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.h b/drivers/hwtracing/coresight/coresight-tmc.h index 95473d131032..319a354ede9f 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.h +++ b/drivers/hwtracing/coresight/coresight-tmc.h @@ -221,6 +221,7 @@ struct tmc_resrv_buf { * @pid: Process ID of the process that owns the session that is using * this component. For example this would be the pid of the Perf * process. + * @reading: buffer's in the reading through "/dev/xyz.tmc" entry * @stop_on_flush: Stop on flush trigger user configuration. * @buf: Snapshot of the trace data for ETF/ETB. * @etr_buf: details of buffer used in TMC-ETR @@ -233,6 +234,7 @@ struct tmc_resrv_buf { * @trigger_cntr: amount of words to store after a trigger. * @etr_caps: Bitmask of capabilities of the TMC ETR, inferred from the * device configuration register (DEVID) + * @etr_mode: User preferred mode of the ETR device, default auto mode. * @idr: Holds etr_bufs allocated for this ETR. * @idr_mutex: Access serialisation for idr. * @sysfs_buf: SYSFS buffer for ETR. |