1// SPDX-License-Identifier: MIT
2/* Copyright © 2024 Intel Corporation */
3
4#include <linux/slab.h>
5
6#include <drm/drm_drv.h>
7
8#include "intel_display_core.h"
9#include "intel_display_device.h"
10#include "intel_display_irq.h"
11#include "intel_display_params.h"
12#include "intel_display_snapshot.h"
13#include "intel_dmc.h"
14#include "intel_overlay.h"
15
16struct intel_display_snapshot {
17 struct intel_display *display;
18
19 struct intel_display_device_info info;
20 struct intel_display_runtime_info runtime_info;
21 struct intel_display_params params;
22 struct intel_overlay_snapshot *overlay;
23 struct intel_dmc_snapshot *dmc;
24 struct intel_display_irq_snapshot *irq;
25};
26
27struct intel_display_snapshot *intel_display_snapshot_capture(struct intel_display *display)
28{
29 struct intel_display_snapshot *snapshot;
30
31 snapshot = kzalloc(sizeof(*snapshot), GFP_ATOMIC);
32 if (!snapshot)
33 return NULL;
34
35 snapshot->display = display;
36
37 memcpy(to: &snapshot->info, DISPLAY_INFO(display), len: sizeof(snapshot->info));
38 memcpy(to: &snapshot->runtime_info, DISPLAY_RUNTIME_INFO(display),
39 len: sizeof(snapshot->runtime_info));
40
41 intel_display_params_copy(dest: &snapshot->params);
42
43 snapshot->irq = intel_display_irq_snapshot_capture(display);
44 snapshot->overlay = intel_overlay_snapshot_capture(display);
45 snapshot->dmc = intel_dmc_snapshot_capture(display);
46
47 return snapshot;
48}
49
50void intel_display_snapshot_print(const struct intel_display_snapshot *snapshot,
51 struct drm_printer *p)
52{
53 struct intel_display *display;
54
55 if (!snapshot)
56 return;
57
58 display = snapshot->display;
59
60 intel_display_device_info_print(info: &snapshot->info, runtime: &snapshot->runtime_info, p);
61 intel_display_params_dump(params: &snapshot->params, driver_name: display->drm->driver->name, p);
62
63 intel_display_irq_snapshot_print(snapshot: snapshot->irq, p);
64 intel_overlay_snapshot_print(error: snapshot->overlay, p);
65 intel_dmc_snapshot_print(snapshot: snapshot->dmc, p);
66}
67
68void intel_display_snapshot_free(struct intel_display_snapshot *snapshot)
69{
70 if (!snapshot)
71 return;
72
73 intel_display_params_free(params: &snapshot->params);
74
75 kfree(objp: snapshot->irq);
76 kfree(objp: snapshot->overlay);
77 kfree(objp: snapshot->dmc);
78 kfree(objp: snapshot);
79}
80