tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_params.h"
11#include "intel_display_snapshot.h"
12#include "intel_dmc.h"
13#include "intel_overlay.h"
14
15struct intel_display_snapshot {
16 struct intel_display *display;
17
18 struct intel_display_device_info info;
19 struct intel_display_runtime_info runtime_info;
20 struct intel_display_params params;
21 struct intel_overlay_snapshot *overlay;
22 struct intel_dmc_snapshot *dmc;
23};
24
25struct intel_display_snapshot *intel_display_snapshot_capture(struct intel_display *display)
26{
27 struct intel_display_snapshot *snapshot;
28
29 snapshot = kzalloc(sizeof(*snapshot), GFP_ATOMIC);
30 if (!snapshot)
31 return NULL;
32
33 snapshot->display = display;
34
35 memcpy(&snapshot->info, DISPLAY_INFO(display), sizeof(snapshot->info));
36 memcpy(&snapshot->runtime_info, DISPLAY_RUNTIME_INFO(display),
37 sizeof(snapshot->runtime_info));
38
39 intel_display_params_copy(&snapshot->params);
40
41 snapshot->overlay = intel_overlay_snapshot_capture(display);
42 snapshot->dmc = intel_dmc_snapshot_capture(display);
43
44 return snapshot;
45}
46
47void intel_display_snapshot_print(const struct intel_display_snapshot *snapshot,
48 struct drm_printer *p)
49{
50 struct intel_display *display;
51
52 if (!snapshot)
53 return;
54
55 display = snapshot->display;
56
57 intel_display_device_info_print(&snapshot->info, &snapshot->runtime_info, p);
58 intel_display_params_dump(&snapshot->params, display->drm->driver->name, p);
59
60 intel_overlay_snapshot_print(snapshot->overlay, p);
61 intel_dmc_snapshot_print(snapshot->dmc, p);
62}
63
64void intel_display_snapshot_free(struct intel_display_snapshot *snapshot)
65{
66 if (!snapshot)
67 return;
68
69 intel_display_params_free(&snapshot->params);
70
71 kfree(snapshot->overlay);
72 kfree(snapshot->dmc);
73 kfree(snapshot);
74}