Documentation: update debugfs doc for Hisilicon ZIP

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-zip b/Documentation/ABI/testing/debugfs-hisi-zip
index bf1258b..fd3f314 100644 (file)
--- a/Documentation/ABI/testing/debugfs-hisi-zip
+++ b/Documentation/ABI/testing/debugfs-hisi-zip
@@ -97,6 +97,20 @@ 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 ZIP.
 
+What:          /sys/kernel/debug/hisi_zip/<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 registers value. This
+               node can be help users to check the change of register values.
+
+What:          /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/diff_regs
+Date:          Mar 2022
+Contact:       linux-crypto@vger.kernel.org
+Description:   ZIP debug registers(regs) read hardware register value. This
+               node is used to show the change of the registers value. this
+               node can be help users to check the change of register values.
+
 What:          /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_cnt
 Date:          Apr 2020
 Contact:       linux-crypto@vger.kernel.org