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01f96b8125
For some coresight components like CTI and TPDM, there could be numerous of them. From the node name, we can only get the type and register address of the component. We can't identify the HW or the system the component belongs to. Add label sysfs node support for showing the intuitive name of the device. Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com> Reviewed-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20250816072529.3716968-3-quic_jinlmao@quicinc.com
248 lines
8.3 KiB
Plaintext
248 lines
8.3 KiB
Plaintext
What: /sys/bus/coresight/devices/<cti-name>/enable
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Enable/Disable the CTI hardware.
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What: /sys/bus/coresight/devices/<cti-name>/powered
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Indicate if the CTI hardware is powered.
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What: /sys/bus/coresight/devices/<cti-name>/ctmid
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Display the associated CTM ID
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What: /sys/bus/coresight/devices/<cti-name>/nr_trigger_cons
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Number of devices connected to triggers on this CTI
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What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/name
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Name of connected device <N>
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What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_signals
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Input trigger signals from connected device <N>
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What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_types
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Functional types for the input trigger signals
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from connected device <N>
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What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_signals
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Output trigger signals to connected device <N>
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What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_types
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Functional types for the output trigger signals
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to connected device <N>
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What: /sys/bus/coresight/devices/<cti-name>/regs/inout_sel
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Select the index for inen and outen registers.
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What: /sys/bus/coresight/devices/<cti-name>/regs/inen
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Read or write the CTIINEN register selected by inout_sel.
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What: /sys/bus/coresight/devices/<cti-name>/regs/outen
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Read or write the CTIOUTEN register selected by inout_sel.
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What: /sys/bus/coresight/devices/<cti-name>/regs/gate
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Read or write CTIGATE register.
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What: /sys/bus/coresight/devices/<cti-name>/regs/asicctl
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Read or write ASICCTL register.
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What: /sys/bus/coresight/devices/<cti-name>/regs/intack
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Write the INTACK register.
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What: /sys/bus/coresight/devices/<cti-name>/regs/appset
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Set CTIAPPSET register to activate channel. Read back to
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determine current value of register.
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What: /sys/bus/coresight/devices/<cti-name>/regs/appclear
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Write APPCLEAR register to deactivate channel.
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What: /sys/bus/coresight/devices/<cti-name>/regs/apppulse
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Write APPPULSE to pulse a channel active for one clock
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cycle.
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What: /sys/bus/coresight/devices/<cti-name>/regs/chinstatus
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Read current status of channel inputs.
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What: /sys/bus/coresight/devices/<cti-name>/regs/choutstatus
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) read current status of channel outputs.
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What: /sys/bus/coresight/devices/<cti-name>/regs/triginstatus
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) read current status of input trigger signals
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What: /sys/bus/coresight/devices/<cti-name>/regs/trigoutstatus
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) read current status of output trigger signals.
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What: /sys/bus/coresight/devices/<cti-name>/channels/trigin_attach
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Attach a CTI input trigger to a CTM channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/trigin_detach
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Detach a CTI input trigger from a CTM channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_attach
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Attach a CTI output trigger to a CTM channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_detach
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Detach a CTI output trigger from a CTM channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_gate_enable
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Enable CTIGATE for single channel (Write) or list enabled
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channels through the gate (R).
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_gate_disable
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Disable CTIGATE for single channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_set
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Activate a single channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_clear
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Deactivate a single channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_pulse
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Pulse a single channel - activate for a single clock cycle.
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What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_filtered
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) List of output triggers filtered across all connections.
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What: /sys/bus/coresight/devices/<cti-name>/channels/trig_filter_enable
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Enable or disable trigger output signal filtering.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_inuse
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) show channels with at least one attached trigger signal.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_free
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) show channels with no attached trigger signals.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_sel
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (RW) Write channel number to select a channel to view, read to
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see selected channel number.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_in
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Read to see input triggers connected to selected view
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channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_out
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Read) Read to see output triggers connected to selected view
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channel.
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What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_reset
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Date: March 2020
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KernelVersion: 5.7
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Contact: Mike Leach or Mathieu Poirier
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Description: (Write) Clear all channel / trigger programming.
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What: /sys/bus/coresight/devices/<cti-name>/label
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Date: Aug 2025
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KernelVersion 6.18
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Contact: Mao Jinlong <quic_jinlmao@quicinc.com>
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Description: (Read) Show hardware context information of device.
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