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| author | Tao Zhang <quic_taozha@quicinc.com> | 2024-02-04 13:30:38 +0800 |
|---|---|---|
| committer | Suzuki K Poulose <suzuki.poulose@arm.com> | 2024-02-12 10:29:47 +0000 |
| commit | 53d4a017a52458d835a1f9524df09c65c2208400 (patch) | |
| tree | 8b5476e5c292c98862708b0616cffa587b3e82c9 /Documentation/ABI | |
| parent | 2d9ab11c262e39f3bc829d0679257ab942d5878f (diff) | |
| download | linux-53d4a017a52458d835a1f9524df09c65c2208400.tar.gz linux-53d4a017a52458d835a1f9524df09c65c2208400.tar.bz2 linux-53d4a017a52458d835a1f9524df09c65c2208400.zip | |
coresight-tpdm: Add pattern registers support for CMB
Timestamps are requested if the monitor’s CMB data set unit input
data matches the value in the Monitor CMB timestamp pattern and mask
registers (M_CMB_TPR and M_CMB_TPMR) when CMB timestamp enabled
via the timestamp insertion enable register bit(CMB_TIER.PATT_TSENAB).
The pattern match trigger output is achieved via setting values into
the CMB trigger pattern and mask registers (CMB_XPR and CMB_XPMR).
After configuring a pattern through these registers, the TPDM subunit
will assert an output trigger every time it receives new input data
that matches the configured pattern value. Values in a given bit
number of the mask register correspond to the same bit number in
the corresponding pattern register.
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Tao Zhang <quic_taozha@quicinc.com>
Signed-off-by: Jinlong Mao <quic_jinlmao@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/1707024641-22460-8-git-send-email-quic_taozha@quicinc.com
Diffstat (limited to 'Documentation/ABI')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm index 6dfb18d6d64a..b6cf050861ed 100644 --- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-tpdm @@ -184,3 +184,33 @@ Description: (Write) Set the data collection mode of CMB tpdm. Continuous Accepts only one of the 2 values - 0 or 1. 0 : Continuous CMB collection mode. 1 : Trace-on-change CMB collection mode. + +What: /sys/bus/coresight/devices/<tpdm-name>/cmb_trig_patt/xpr[0:1] +Date: January 2024 +KernelVersion 6.9 +Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com> +Description: + (RW) Set/Get the value of the trigger pattern for the CMB + subunit TPDM. + +What: /sys/bus/coresight/devices/<tpdm-name>/cmb_trig_patt/xpmr[0:1] +Date: January 2024 +KernelVersion 6.9 +Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com> +Description: + (RW) Set/Get the mask of the trigger pattern for the CMB + subunit TPDM. + +What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/tpr[0:1] +Date: January 2024 +KernelVersion 6.9 +Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com> +Description: + (RW) Set/Get the value of the pattern for the CMB subunit TPDM. + +What: /sys/bus/coresight/devices/<tpdm-name>/dsb_patt/tpmr[0:1] +Date: January 2024 +KernelVersion 6.9 +Contact: Jinlong Mao (QUIC) <quic_jinlmao@quicinc.com>, Tao Zhang (QUIC) <quic_taozha@quicinc.com> +Description: + (RW) Set/Get the mask of the pattern for the CMB subunit TPDM. |