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kernel / Documentation / ABI / testing / sysfs-bus-coresight-devices-cti
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1What: /sys/bus/coresight/devices/<cti-name>/enable 2Date: March 2020 3KernelVersion: 5.7 4Contact: Mike Leach or Mathieu Poirier 5Description: (RW) Enable/Disable the CTI hardware. 6 7What: /sys/bus/coresight/devices/<cti-name>/powered 8Date: March 2020 9KernelVersion: 5.7 10Contact: Mike Leach or Mathieu Poirier 11Description: (Read) Indicate if the CTI hardware is powered. 12 13What: /sys/bus/coresight/devices/<cti-name>/ctmid 14Date: March 2020 15KernelVersion: 5.7 16Contact: Mike Leach or Mathieu Poirier 17Description: (Read) Display the associated CTM ID 18 19What: /sys/bus/coresight/devices/<cti-name>/nr_trigger_cons 20Date: March 2020 21KernelVersion: 5.7 22Contact: Mike Leach or Mathieu Poirier 23Description: (Read) Number of devices connected to triggers on this CTI 24 25What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/name 26Date: March 2020 27KernelVersion: 5.7 28Contact: Mike Leach or Mathieu Poirier 29Description: (Read) Name of connected device <N> 30 31What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_signals 32Date: March 2020 33KernelVersion: 5.7 34Contact: Mike Leach or Mathieu Poirier 35Description: (Read) Input trigger signals from connected device <N> 36 37What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_types 38Date: March 2020 39KernelVersion: 5.7 40Contact: Mike Leach or Mathieu Poirier 41Description: (Read) Functional types for the input trigger signals 42 from connected device <N> 43 44What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_signals 45Date: March 2020 46KernelVersion: 5.7 47Contact: Mike Leach or Mathieu Poirier 48Description: (Read) Output trigger signals to connected device <N> 49 50What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_types 51Date: March 2020 52KernelVersion: 5.7 53Contact: Mike Leach or Mathieu Poirier 54Description: (Read) Functional types for the output trigger signals 55 to connected device <N> 56 57What: /sys/bus/coresight/devices/<cti-name>/regs/inout_sel 58Date: March 2020 59KernelVersion: 5.7 60Contact: Mike Leach or Mathieu Poirier 61Description: (RW) Select the index for inen and outen registers. 62 63What: /sys/bus/coresight/devices/<cti-name>/regs/inen 64Date: March 2020 65KernelVersion: 5.7 66Contact: Mike Leach or Mathieu Poirier 67Description: (RW) Read or write the CTIINEN register selected by inout_sel. 68 69What: /sys/bus/coresight/devices/<cti-name>/regs/outen 70Date: March 2020 71KernelVersion: 5.7 72Contact: Mike Leach or Mathieu Poirier 73Description: (RW) Read or write the CTIOUTEN register selected by inout_sel. 74 75What: /sys/bus/coresight/devices/<cti-name>/regs/gate 76Date: March 2020 77KernelVersion: 5.7 78Contact: Mike Leach or Mathieu Poirier 79Description: (RW) Read or write CTIGATE register. 80 81What: /sys/bus/coresight/devices/<cti-name>/regs/asicctl 82Date: March 2020 83KernelVersion: 5.7 84Contact: Mike Leach or Mathieu Poirier 85Description: (RW) Read or write ASICCTL register. 86 87What: /sys/bus/coresight/devices/<cti-name>/regs/intack 88Date: March 2020 89KernelVersion: 5.7 90Contact: Mike Leach or Mathieu Poirier 91Description: (Write) Write the INTACK register. 92 93What: /sys/bus/coresight/devices/<cti-name>/regs/appset 94Date: March 2020 95KernelVersion: 5.7 96Contact: Mike Leach or Mathieu Poirier 97Description: (RW) Set CTIAPPSET register to activate channel. Read back to 98 determine current value of register. 99 100What: /sys/bus/coresight/devices/<cti-name>/regs/appclear 101Date: March 2020 102KernelVersion: 5.7 103Contact: Mike Leach or Mathieu Poirier 104Description: (Write) Write APPCLEAR register to deactivate channel. 105 106What: /sys/bus/coresight/devices/<cti-name>/regs/apppulse 107Date: March 2020 108KernelVersion: 5.7 109Contact: Mike Leach or Mathieu Poirier 110Description: (Write) Write APPPULSE to pulse a channel active for one clock 111 cycle. 112 113What: /sys/bus/coresight/devices/<cti-name>/regs/chinstatus 114Date: March 2020 115KernelVersion: 5.7 116Contact: Mike Leach or Mathieu Poirier 117Description: (Read) Read current status of channel inputs. 118 119What: /sys/bus/coresight/devices/<cti-name>/regs/choutstatus 120Date: March 2020 121KernelVersion: 5.7 122Contact: Mike Leach or Mathieu Poirier 123Description: (Read) read current status of channel outputs. 124 125What: /sys/bus/coresight/devices/<cti-name>/regs/triginstatus 126Date: March 2020 127KernelVersion: 5.7 128Contact: Mike Leach or Mathieu Poirier 129Description: (Read) read current status of input trigger signals 130 131What: /sys/bus/coresight/devices/<cti-name>/regs/trigoutstatus 132Date: March 2020 133KernelVersion: 5.7 134Contact: Mike Leach or Mathieu Poirier 135Description: (Read) read current status of output trigger signals. 136 137What: /sys/bus/coresight/devices/<cti-name>/channels/trigin_attach 138Date: March 2020 139KernelVersion: 5.7 140Contact: Mike Leach or Mathieu Poirier 141Description: (Write) Attach a CTI input trigger to a CTM channel. 142 143What: /sys/bus/coresight/devices/<cti-name>/channels/trigin_detach 144Date: March 2020 145KernelVersion: 5.7 146Contact: Mike Leach or Mathieu Poirier 147Description: (Write) Detach a CTI input trigger from a CTM channel. 148 149What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_attach 150Date: March 2020 151KernelVersion: 5.7 152Contact: Mike Leach or Mathieu Poirier 153Description: (Write) Attach a CTI output trigger to a CTM channel. 154 155What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_detach 156Date: March 2020 157KernelVersion: 5.7 158Contact: Mike Leach or Mathieu Poirier 159Description: (Write) Detach a CTI output trigger from a CTM channel. 160 161What: /sys/bus/coresight/devices/<cti-name>/channels/chan_gate_enable 162Date: March 2020 163KernelVersion: 5.7 164Contact: Mike Leach or Mathieu Poirier 165Description: (RW) Enable CTIGATE for single channel (Write) or list enabled 166 channels through the gate (R). 167 168What: /sys/bus/coresight/devices/<cti-name>/channels/chan_gate_disable 169Date: March 2020 170KernelVersion: 5.7 171Contact: Mike Leach or Mathieu Poirier 172Description: (Write) Disable CTIGATE for single channel. 173 174What: /sys/bus/coresight/devices/<cti-name>/channels/chan_set 175Date: March 2020 176KernelVersion: 5.7 177Contact: Mike Leach or Mathieu Poirier 178Description: (Write) Activate a single channel. 179 180What: /sys/bus/coresight/devices/<cti-name>/channels/chan_clear 181Date: March 2020 182KernelVersion: 5.7 183Contact: Mike Leach or Mathieu Poirier 184Description: (Write) Deactivate a single channel. 185 186What: /sys/bus/coresight/devices/<cti-name>/channels/chan_pulse 187Date: March 2020 188KernelVersion: 5.7 189Contact: Mike Leach or Mathieu Poirier 190Description: (Write) Pulse a single channel - activate for a single clock cycle. 191 192What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_filtered 193Date: March 2020 194KernelVersion: 5.7 195Contact: Mike Leach or Mathieu Poirier 196Description: (Read) List of output triggers filtered across all connections. 197 198What: /sys/bus/coresight/devices/<cti-name>/channels/trig_filter_enable 199Date: March 2020 200KernelVersion: 5.7 201Contact: Mike Leach or Mathieu Poirier 202Description: (RW) Enable or disable trigger output signal filtering. 203 204What: /sys/bus/coresight/devices/<cti-name>/channels/chan_inuse 205Date: March 2020 206KernelVersion: 5.7 207Contact: Mike Leach or Mathieu Poirier 208Description: (Read) show channels with at least one attached trigger signal. 209 210What: /sys/bus/coresight/devices/<cti-name>/channels/chan_free 211Date: March 2020 212KernelVersion: 5.7 213Contact: Mike Leach or Mathieu Poirier 214Description: (Read) show channels with no attached trigger signals. 215 216What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_sel 217Date: March 2020 218KernelVersion: 5.7 219Contact: Mike Leach or Mathieu Poirier 220Description: (RW) Write channel number to select a channel to view, read to 221 see selected channel number. 222 223What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_in 224Date: March 2020 225KernelVersion: 5.7 226Contact: Mike Leach or Mathieu Poirier 227Description: (Read) Read to see input triggers connected to selected view 228 channel. 229 230What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_out 231Date: March 2020 232KernelVersion: 5.7 233Contact: Mike Leach or Mathieu Poirier 234Description: (Read) Read to see output triggers connected to selected view 235 channel. 236 237What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_reset 238Date: March 2020 239KernelVersion: 5.7 240Contact: Mike Leach or Mathieu Poirier 241Description: (Write) Clear all channel / trigger programming. 242 243What: /sys/bus/coresight/devices/<cti-name>/label 244Date: Aug 2025 245KernelVersion 6.18 246Contact: Mao Jinlong <quic_jinlmao@quicinc.com> 247Description: (Read) Show hardware context information of device.