1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_snapshot.c b/drivers/gpu/drm/i915/display/intel_display_snapshot.c
new file mode 100644
index 000000000000..030c4f873da1
--- /dev/null
+++ b/drivers/gpu/drm/i915/display/intel_display_snapshot.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2024 Intel Corporation */
+
+#include <linux/slab.h>
+
+#include "i915_drv.h"
+#include "intel_display_device.h"
+#include "intel_display_params.h"
+#include "intel_display_snapshot.h"
+#include "intel_dmc.h"
+#include "intel_overlay.h"
+
+struct intel_display_snapshot {
+	struct intel_display *display;
+
+	struct intel_display_device_info info;
+	struct intel_display_runtime_info runtime_info;
+	struct intel_display_params params;
+	struct intel_overlay_snapshot *overlay;
+	struct intel_dmc_snapshot *dmc;
+};
+
+struct intel_display_snapshot *intel_display_snapshot_capture(struct intel_display *display)
+{
+	struct intel_display_snapshot *snapshot;
+
+	snapshot = kzalloc(sizeof(*snapshot), GFP_ATOMIC);
+	if (!snapshot)
+		return NULL;
+
+	snapshot->display = display;
+
+	memcpy(&snapshot->info, DISPLAY_INFO(display), sizeof(snapshot->info));
+	memcpy(&snapshot->runtime_info, DISPLAY_RUNTIME_INFO(display),
+	       sizeof(snapshot->runtime_info));
+
+	intel_display_params_copy(&snapshot->params);
+
+	snapshot->overlay = intel_overlay_snapshot_capture(display);
+	snapshot->dmc = intel_dmc_snapshot_capture(display);
+
+	return snapshot;
+}
+
+void intel_display_snapshot_print(const struct intel_display_snapshot *snapshot,
+				  struct drm_printer *p)
+{
+	struct intel_display *display;
+
+	if (!snapshot)
+		return;
+
+	display = snapshot->display;
+
+	intel_display_device_info_print(&snapshot->info, &snapshot->runtime_info, p);
+	intel_display_params_dump(&snapshot->params, display->drm->driver->name, p);
+
+	intel_overlay_snapshot_print(snapshot->overlay, p);
+	intel_dmc_snapshot_print(snapshot->dmc, p);
+}
+
+void intel_display_snapshot_free(struct intel_display_snapshot *snapshot)
+{
+	if (!snapshot)
+		return;
+
+	intel_display_params_free(&snapshot->params);
+
+	kfree(snapshot->overlay);
+	kfree(snapshot->dmc);
+	kfree(snapshot);
+}