1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.c b/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.c
new file mode 100644
index 000000000000..f0a13c190196
--- /dev/null
+++ b/drivers/crypto/intel/qat/qat_common/adf_pm_dbgfs.c
@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright(c) 2023 Intel Corporation */
+#include <linux/debugfs.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+
+#include "adf_accel_devices.h"
+#include "adf_pm_dbgfs.h"
+
+static ssize_t pm_status_read(struct file *f, char __user *buf, size_t count,
+			      loff_t *pos)
+{
+	struct adf_accel_dev *accel_dev = file_inode(f)->i_private;
+	struct adf_pm pm = accel_dev->power_management;
+
+	if (pm.print_pm_status)
+		return pm.print_pm_status(accel_dev, buf, count, pos);
+
+	return count;
+}
+
+static const struct file_operations pm_status_fops = {
+	.owner = THIS_MODULE,
+	.read = pm_status_read,
+};
+
+void adf_pm_dbgfs_add(struct adf_accel_dev *accel_dev)
+{
+	struct adf_pm *pm = &accel_dev->power_management;
+
+	if (!pm->present || !pm->print_pm_status)
+		return;
+
+	pm->debugfs_pm_status = debugfs_create_file("pm_status", 0400,
+						    accel_dev->debugfs_dir,
+						    accel_dev, &pm_status_fops);
+}
+
+void adf_pm_dbgfs_rm(struct adf_accel_dev *accel_dev)
+{
+	struct adf_pm *pm = &accel_dev->power_management;
+
+	if (!pm->present)
+		return;
+
+	debugfs_remove(pm->debugfs_pm_status);
+	pm->debugfs_pm_status = NULL;
+}