linux-imx/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc
Mauro Carvalho Chehab 3443333284 docs: ABI: testing: make the files compatible with ReST output
Some files over there won't parse well by Sphinx.

Fix them.

Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for IIO
Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Link: https://lore.kernel.org/r/58cf3c2d611e0197fb215652719ebd82ca2658db.1604042072.git.mchehab+huawei@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-30 13:07:01 +01:00

2.2 KiB

What: /sys/bus/intel_th/devices/<intel_th_id>-msc/wrap Date: June 2015 KernelVersion: 4.3 Contact: Alexander Shishkin alexander.shishkin@linux.intel.com Description: (RW) Configure MSC buffer wrapping. 1 == wrapping enabled.

What: /sys/bus/intel_th/devices/<intel_th_id>-msc/mode Date: June 2015 KernelVersion: 4.3 Contact: Alexander Shishkin alexander.shishkin@linux.intel.com Description: (RW) Configure MSC operating mode:

	  - "single", for contiguous buffer mode (high-order alloc);
	  - "multi", for multiblock mode;
	  - "ExI", for DCI handler mode;
	  - "debug", for debug mode;
	  - any of the currently loaded buffer sinks.

	If operating mode changes, existing buffer is deallocated,
	provided there are no active users and tracing is not enabled,
	otherwise the write will fail.

What: /sys/bus/intel_th/devices/<intel_th_id>-msc/nr_pages Date: June 2015 KernelVersion: 4.3 Contact: Alexander Shishkin alexander.shishkin@linux.intel.com Description: (RW) Configure MSC buffer size for "single" or "multi" modes.

	In single mode, this is a single number of pages, has to be
	power of 2. In multiblock mode, this is a comma-separated list
	of numbers of pages for each window to be allocated. Number of
	windows is not limited.

	Writing to this file deallocates existing buffer (provided
	there are no active users and tracing is not enabled) and then
	allocates a new one.

What: /sys/bus/intel_th/devices/<intel_th_id>-msc/win_switch Date: May 2019 KernelVersion: 5.2 Contact: Alexander Shishkin alexander.shishkin@linux.intel.com Description: (RW) Trigger window switch for the MSC's buffer, in multi-window mode. In "multi" mode, accepts writes of "1", thereby triggering a window switch for the buffer. Returns an error in any other operating mode or attempts to write something other than "1".

What: /sys/bus/intel_th/devices/<intel_th_id>-msc/stop_on_full Date: March 2020 KernelVersion: 5.7 Contact: Alexander Shishkin alexander.shishkin@linux.intel.com Description: (RW) Configure whether trace stops when the last available window becomes full (1/y/Y) or wraps around and continues until the next window becomes available again (0/n/N).