From 8622dfefb6ac333c58d354331d1bf78a2927ce51 Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Thu, 19 Mar 2020 10:51:52 +0200 Subject: intel_th: msu: Make stopping the trace optional Some use cases prefer to keep collecting the trace data into the last available window while the other windows are being offloaded instead of stopping the trace. In this scenario, the window switch happens automatically when the next window becomes available again. Add an option to allow this and a sysfs attribute to enable it. Signed-off-by: Alexander Shishkin Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20200319085152.52183-1-alexander.shishkin@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation/ABI') diff --git a/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc b/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc index 456cb62b384c..7fd2601c2831 100644 --- a/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc +++ b/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc @@ -40,3 +40,11 @@ Description: (RW) Trigger window switch for the MSC's buffer, in 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/-msc/stop_on_full +Date: March 2020 +KernelVersion: 5.7 +Contact: Alexander Shishkin +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). + -- cgit v1.2.3