Documentation: update debugfs doc for Hisilicon SEC

Update documentation describing DebugFS that could help
to check the change of register values.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/Documentation/ABI/testing/debugfs-hisi-sec b/Documentation/ABI/testing/debugfs-hisi-sec
index 2bf84ce..93c530d 100644 (file)
--- a/Documentation/ABI/testing/debugfs-hisi-sec
+++ b/Documentation/ABI/testing/debugfs-hisi-sec
@@ -84,6 +84,20 @@ Description: Dump the status of the QM.
                Four states: initiated, started, stopped and closed.
                Available for both PF and VF, and take no other effect on SEC.
 
+What:          /sys/kernel/debug/hisi_sec2/<bdf>/qm/diff_regs
+Date:          Mar 2022
+Contact:       linux-crypto@vger.kernel.org
+Description:   QM debug registers(regs) read hardware register value. This
+               node is used to show the change of the qm register values. This
+               node can be help users to check the change of register values.
+
+What:          /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/diff_regs
+Date:          Mar 2022
+Contact:       linux-crypto@vger.kernel.org
+Description:   SEC debug registers(regs) read hardware register value. This
+               node is used to show the change of the register values. This
+               node can be help users to check the change of register values.
+
 What:          /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_cnt
 Date:          Apr 2020
 Contact:       linux-crypto@vger.kernel.org