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| author | Alexander Shishkin <alexander.shishkin@linux.intel.com> | 2019-05-03 11:44:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-03 18:17:40 +0200 |
| commit | 6cac7866c27418cd784fbb8041c2dddd6d966bc7 (patch) | |
| tree | 1d6470e54a77ac654b05728552953a8317413c6e /Documentation/ABI | |
| parent | 4840572d3d7e66d7b55d3fc3b0f52711fd172eb8 (diff) | |
| download | lwn-6cac7866c27418cd784fbb8041c2dddd6d966bc7.tar.gz lwn-6cac7866c27418cd784fbb8041c2dddd6d966bc7.zip | |
intel_th: msu: Add a sysfs attribute to trigger window switch
Now that we have the means to trigger a window switch for the MSU trace
store, add a sysfs file to allow triggering it from userspace.
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI')
| -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 b940c5d91cf7..f54ae244f3f1 100644 --- a/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc +++ b/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc @@ -30,4 +30,12 @@ Description: (RW) Configure MSC buffer size for "single" or "multi" modes. 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<msc-id>/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". |