xref: /linux/drivers/gpu/drm/i915/display/intel_display_snapshot.c (revision 7f4f3b14e8079ecde096bd734af10e30d40c27b7)
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 
13 struct 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 
23 struct 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 
45 void 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 
62 void 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 }
73