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Subject[PATCH 2/4] Documentation: add sysfs entries for Zhouyi NPU
Zhouyi NPU driver provides sysfs interfaces for userspace to
check the status of NPU cores.

Signed-off-by: Dejia Shang <>
.../ABI/testing/sysfs-devices-platform-armchina-npu | 13 +++++++++++++
1 file changed, 13 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-devices-platform-armchina-npu

diff --git a/Documentation/ABI/testing/sysfs-devices-platform-armchina-npu b/Documentation/ABI/testing/sysfs-devices-platform-armchina-npu
new file mode 100644
index 000000000000..185819e0010c
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-platform-armchina-npu
@@ -0,0 +1,13 @@
+What: /sys/devices/platform/aipu<n>/disable
+Date: December 2021
+KernelVersion: 5.16
+Contact: Dejia Shang <>
+ (RW) Read/Set the enable/disable status of the current Zhouyi NPU core
+What: /sys/devices/platform/aipu<n>/ext_registers
+Date: December 2021
+KernelVersion: 5.16
+Contact: Dejia Shang <>
+ (RO) List of Zhouyi NPU external registers and current values inside
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