diff options
| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2020-03-19 10:51:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-24 13:45:24 +0100 |
| commit | 8622dfefb6ac333c58d354331d1bf78a2927ce51 (patch) | |
| tree | 4c2231b8ee97abfb55854d74c7fc411dfa768527 /Documentation/ABI/testing | |
| parent | 3baf89abca196f6dcb7038fd5342fd6e82f3260c (diff) | |
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 <alexander.shishkin@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200319085152.52183-1-alexander.shishkin@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/testing')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc | 8 |
1 files changed, 8 insertions, 0 deletions
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/<intel_th_id>-msc<msc-id>/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). + |