[PATCH 3/9] drm/xe: Add a new debug focused configfs group

[Stuart Summers <stuart.summers@intel.com>]

Add the skeleton code for a new debug specific configfs group.
Just add the structure for now. Actual debug content will be
added in a subsequent patch.

Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Assisted-by: Copilot:claude-sonnet-4.6,claude-opus-4.7
---
 drivers/gpu/drm/xe/Makefile            |  2 ++
 drivers/gpu/drm/xe/xe_configfs.c       |  5 +++++
 drivers/gpu/drm/xe/xe_configfs_debug.c | 14 ++++++++++++++
 drivers/gpu/drm/xe/xe_configfs_debug.h | 13 +++++++++++++
 drivers/gpu/drm/xe/xe_configfs_types.h |  3 +++
 5 files changed, 37 insertions(+)
 create mode 100644 drivers/gpu/drm/xe/xe_configfs_debug.c
 create mode 100644 drivers/gpu/drm/xe/xe_configfs_debug.h

diff --git a/drivers/gpu/drm/xe/Makefile b/drivers/gpu/drm/xe/Makefile
index 67ada1d6c2fb..5765751781ae 100644
--- a/drivers/gpu/drm/xe/Makefile
+++ b/drivers/gpu/drm/xe/Makefile
@@ -162,6 +162,8 @@ xe-$(CONFIG_HWMON) += xe_hwmon.o
 
 xe-$(CONFIG_PERF_EVENTS) += xe_pmu.o
 xe-$(CONFIG_CONFIGFS_FS) += xe_configfs.o
+xe_debug_configfs_obj-$(CONFIG_DRM_XE_DEBUG) := xe_configfs_debug.o
+xe-$(CONFIG_CONFIGFS_FS) += $(xe_debug_configfs_obj-y)
 
 # graphics virtualization (SR-IOV) support
 xe-y += \
diff --git a/drivers/gpu/drm/xe/xe_configfs.c b/drivers/gpu/drm/xe/xe_configfs.c
index f8f9afe82488..4b92e3072d56 100644
--- a/drivers/gpu/drm/xe/xe_configfs.c
+++ b/drivers/gpu/drm/xe/xe_configfs.c
@@ -14,6 +14,7 @@
 
 #include "instructions/xe_mi_commands.h"
 #include "xe_configfs.h"
+#include "xe_configfs_debug.h"
 #include "xe_defaults.h"
 #include "xe_gt_types.h"
 #include "xe_module.h"
@@ -1233,6 +1234,10 @@ static struct config_group *xe_config_make_device_group(struct config_group *gro
 		config_group_init_type_name(&dev->sriov, "sriov", &xe_config_sriov_type);
 		configfs_add_default_group(&dev->sriov, &dev->group);
 	}
+#if IS_ENABLED(CONFIG_DRM_XE_DEBUG)
+	config_group_init_type_name(&dev->debug, "debug", &xe_configfs_debug_type);
+	configfs_add_default_group(&dev->debug, &dev->group);
+#endif
 
 	mutex_init(&dev->lock);
 
diff --git a/drivers/gpu/drm/xe/xe_configfs_debug.c b/drivers/gpu/drm/xe/xe_configfs_debug.c
new file mode 100644
index 000000000000..45617282cec5
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_configfs_debug.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2026 Intel Corporation
+ */
+
+#include <linux/configfs.h>
+#include <linux/module.h>
+
+#include "xe_configfs_debug.h"
+#include "xe_configfs_types.h"
+
+const struct config_item_type xe_configfs_debug_type = {
+	.ct_owner	= THIS_MODULE,
+};
diff --git a/drivers/gpu/drm/xe/xe_configfs_debug.h b/drivers/gpu/drm/xe/xe_configfs_debug.h
new file mode 100644
index 000000000000..5f938450aed2
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_configfs_debug.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2026 Intel Corporation
+ */
+#ifndef _XE_CONFIGFS_DEBUG_H_
+#define _XE_CONFIGFS_DEBUG_H_
+
+#if IS_ENABLED(CONFIG_DRM_XE_DEBUG) && IS_ENABLED(CONFIG_CONFIGFS_FS)
+struct config_item_type;
+extern const struct config_item_type xe_configfs_debug_type;
+#endif
+
+#endif /* _XE_CONFIGFS_DEBUG_H_ */
diff --git a/drivers/gpu/drm/xe/xe_configfs_types.h b/drivers/gpu/drm/xe/xe_configfs_types.h
index 3be7d6160b4c..e22b9424f719 100644
--- a/drivers/gpu/drm/xe/xe_configfs_types.h
+++ b/drivers/gpu/drm/xe/xe_configfs_types.h
@@ -22,6 +22,9 @@ struct wa_bb {
 struct xe_config_group_device {
 	struct config_group group;
 	struct config_group sriov;
+#if IS_ENABLED(CONFIG_DRM_XE_DEBUG)
+	struct config_group debug;
+#endif
 
 	/*
 	 * Fields sorted by type (largest first) then name: struct arrays,
-- 
2.43.0