mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-15 20:26:48 +07:00
14cdbf0417
Parallel Trace Interface (PTI) unit is a trace output device that sends data over a PTI port. The driver provides interfaces to configure bus width, bus clock divider and mode. Tracing is enabled via output device's "active" attribute. Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
25 lines
923 B
Plaintext
25 lines
923 B
Plaintext
What: /sys/bus/intel_th/devices/<intel_th_id>-pti/mode
|
|
Date: June 2015
|
|
KernelVersion: 4.3
|
|
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
|
|
Description: (RW) Configure PTI output width. Currently supported values
|
|
are 4, 8, 12, 16.
|
|
|
|
What: /sys/bus/intel_th/devices/<intel_th_id>-pti/freerunning_clock
|
|
Date: June 2015
|
|
KernelVersion: 4.3
|
|
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
|
|
Description: (RW) 0: PTI trace clock acts as a strobe which only toggles
|
|
when there is trace data to send. 1: PTI trace clock is a
|
|
free-running clock.
|
|
|
|
What: /sys/bus/intel_th/devices/<intel_th_id>-pti/clock_divider
|
|
Date: June 2015
|
|
KernelVersion: 4.3
|
|
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
|
|
Description: (RW) Configure PTI port clock divider:
|
|
- 0: Intel TH clock rate,
|
|
- 1: 1/2 Intel TH clock rate,
|
|
- 2: 1/4 Intel TH clock rate,
|
|
- 3: 1/8 Intel TH clock rate.
|