1// SPDX-License-Identifier: MIT
 2/* Copyright © 2024 Intel Corporation */
 3
 4#include <linux/slab.h>
 5
 6#include "i915_drv.h"
 7#include "intel_display_device.h"
 8#include "intel_display_params.h"
 9#include "intel_display_snapshot.h"
10#include "intel_dmc.h"
11#include "intel_overlay.h"
12
13struct intel_display_snapshot {
14	struct intel_display *display;
15
16	struct intel_display_device_info info;
17	struct intel_display_runtime_info runtime_info;
18	struct intel_display_params params;
19	struct intel_overlay_snapshot *overlay;
20	struct intel_dmc_snapshot *dmc;
21};
22
23struct intel_display_snapshot *intel_display_snapshot_capture(struct intel_display *display)
24{
25	struct intel_display_snapshot *snapshot;
26
27	snapshot = kzalloc(sizeof(*snapshot), GFP_ATOMIC);
28	if (!snapshot)
29		return NULL;
30
31	snapshot->display = display;
32
33	memcpy(&snapshot->info, DISPLAY_INFO(display), sizeof(snapshot->info));
34	memcpy(&snapshot->runtime_info, DISPLAY_RUNTIME_INFO(display),
35	       sizeof(snapshot->runtime_info));
36
37	intel_display_params_copy(&snapshot->params);
38
39	snapshot->overlay = intel_overlay_snapshot_capture(display);
40	snapshot->dmc = intel_dmc_snapshot_capture(display);
41
42	return snapshot;
43}
44
45void intel_display_snapshot_print(const struct intel_display_snapshot *snapshot,
46				  struct drm_printer *p)
47{
48	struct intel_display *display;
49
50	if (!snapshot)
51		return;
52
53	display = snapshot->display;
54
55	intel_display_device_info_print(&snapshot->info, &snapshot->runtime_info, p);
56	intel_display_params_dump(&snapshot->params, display->drm->driver->name, p);
57
58	intel_overlay_snapshot_print(snapshot->overlay, p);
59	intel_dmc_snapshot_print(snapshot->dmc, p);
60}
61
62void intel_display_snapshot_free(struct intel_display_snapshot *snapshot)
63{
64	if (!snapshot)
65		return;
66
67	intel_display_params_free(&snapshot->params);
68
69	kfree(snapshot->overlay);
70	kfree(snapshot->dmc);
71	kfree(snapshot);
72}