Merge remote-tracking branch 'tip/sched/arm64' into for-next/core

[linux-2.6-microblaze.git] / Documentation / ABI / testing / sysfs-devices-system-cpu

diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 69edbd9..b46ef14 100644 (file)
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -649,3 +649,20 @@ Description:       SPURR ticks for cpuX when it was idle.
 
                This sysfs interface exposes the number of SPURR ticks
                for cpuX when it was idle.
+
+What:          /sys/devices/system/cpu/cpuX/mte_tcf_preferred
+Date:          July 2021
+Contact:       Linux ARM Kernel Mailing list <linux-arm-kernel@lists.infradead.org>
+Description:   Preferred MTE tag checking mode
+
+               When a user program specifies more than one MTE tag checking
+               mode, this sysfs node is used to specify which mode should
+               be preferred when scheduling a task on that CPU. Possible
+               values:
+
+               ================  ==============================================
+               "sync"            Prefer synchronous mode
+               "async"           Prefer asynchronous mode
+               ================  ==============================================
+
+               See also: Documentation/arm64/memory-tagging-extension.rst