Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1// SPDX-License-Identifier: GPL-2.0 OR MIT
2/* Copyright (c) 2026 Imagination Technologies Ltd. */
3
4#include "pvr_device.h"
5#include "pvr_dump.h"
6#include "pvr_rogue_fwif.h"
7
8#include <drm/drm_print.h>
9#include <linux/types.h>
10
11static const char *
12get_reset_reason_desc(enum rogue_context_reset_reason reason)
13{
14 switch (reason) {
15 case ROGUE_CONTEXT_RESET_REASON_NONE:
16 return "None";
17 case ROGUE_CONTEXT_RESET_REASON_GUILTY_LOCKUP:
18 return "Guilty lockup";
19 case ROGUE_CONTEXT_RESET_REASON_INNOCENT_LOCKUP:
20 return "Innocent lockup";
21 case ROGUE_CONTEXT_RESET_REASON_GUILTY_OVERRUNING:
22 return "Guilty overrunning";
23 case ROGUE_CONTEXT_RESET_REASON_INNOCENT_OVERRUNING:
24 return "Innocent overrunning";
25 case ROGUE_CONTEXT_RESET_REASON_HARD_CONTEXT_SWITCH:
26 return "Hard context switch";
27 case ROGUE_CONTEXT_RESET_REASON_WGP_CHECKSUM:
28 return "CDM Mission/safety checksum mismatch";
29 case ROGUE_CONTEXT_RESET_REASON_TRP_CHECKSUM:
30 return "TRP checksum mismatch";
31 case ROGUE_CONTEXT_RESET_REASON_GPU_ECC_OK:
32 return "GPU ECC error (corrected, OK)";
33 case ROGUE_CONTEXT_RESET_REASON_GPU_ECC_HWR:
34 return "GPU ECC error (uncorrected, HWR)";
35 case ROGUE_CONTEXT_RESET_REASON_FW_ECC_OK:
36 return "Firmware ECC error (corrected, OK)";
37 case ROGUE_CONTEXT_RESET_REASON_FW_ECC_ERR:
38 return "Firmware ECC error (uncorrected, ERR)";
39 case ROGUE_CONTEXT_RESET_REASON_FW_WATCHDOG:
40 return "Firmware watchdog";
41 case ROGUE_CONTEXT_RESET_REASON_FW_PAGEFAULT:
42 return "Firmware pagefault";
43 case ROGUE_CONTEXT_RESET_REASON_FW_EXEC_ERR:
44 return "Firmware execution error";
45 case ROGUE_CONTEXT_RESET_REASON_HOST_WDG_FW_ERR:
46 return "Host watchdog";
47 case ROGUE_CONTEXT_GEOM_OOM_DISABLED:
48 return "Geometry OOM disabled";
49
50 default:
51 return "Unknown";
52 }
53}
54
55static const char *
56get_dm_name(u32 dm)
57{
58 switch (dm) {
59 case PVR_FWIF_DM_GP:
60 return "General purpose";
61 /* PVR_FWIF_DM_TDM has the same index, but is discriminated by a device feature */
62 case PVR_FWIF_DM_2D:
63 return "2D or TDM";
64 case PVR_FWIF_DM_GEOM:
65 return "Geometry";
66 case PVR_FWIF_DM_FRAG:
67 return "Fragment";
68 case PVR_FWIF_DM_CDM:
69 return "Compute";
70 case PVR_FWIF_DM_RAY:
71 return "Raytracing";
72 case PVR_FWIF_DM_GEOM2:
73 return "Geometry 2";
74 case PVR_FWIF_DM_GEOM3:
75 return "Geometry 3";
76 case PVR_FWIF_DM_GEOM4:
77 return "Geometry 4";
78
79 default:
80 return "Unknown";
81 }
82}
83
84/**
85 * pvr_dump_context_reset_notification() - Handle context reset notification from FW
86 * @pvr_dev: Device pointer.
87 * @data: Data provided by FW.
88 *
89 * This will decode the data structure provided by FW and print the results via drm_info().
90 */
91void
92pvr_dump_context_reset_notification(struct pvr_device *pvr_dev,
93 struct rogue_fwif_fwccb_cmd_context_reset_data *data)
94{
95 struct drm_device *drm_dev = from_pvr_device(pvr_dev);
96
97 if (data->flags & ROGUE_FWIF_FWCCB_CMD_CONTEXT_RESET_FLAG_ALL_CTXS) {
98 drm_info(drm_dev, "Received context reset notification for all contexts\n");
99 } else {
100 drm_info(drm_dev, "Received context reset notification on context %u\n",
101 data->server_common_context_id);
102 }
103
104 drm_info(drm_dev, " Reset reason=%u (%s)\n", data->reset_reason,
105 get_reset_reason_desc((enum rogue_context_reset_reason)data->reset_reason));
106 drm_info(drm_dev, " Data Master=%u (%s)\n", data->dm, get_dm_name(data->dm));
107 drm_info(drm_dev, " Job ref=%u\n", data->reset_job_ref);
108
109 if (data->flags & ROGUE_FWIF_FWCCB_CMD_CONTEXT_RESET_FLAG_PF) {
110 drm_info(drm_dev, " Page fault occurred, fault address=%llx\n",
111 data->fault_address);
112 }
113}