1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license. When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2023 Intel Corporation
7
8 /* telemetry data queried from debug window */
9
10 #include <sound/sof/ipc4/header.h>
11 #include <sound/sof/xtensa.h>
12 #include "../ipc4-priv.h"
13 #include "../sof-priv.h"
14 #include "hda.h"
15 #include "telemetry.h"
16
17 void sof_ipc4_intel_dump_telemetry_state(struct snd_sof_dev *sdev, u32 flags)
18 {
19 static const char invalid_slot_msg[] = "Core dump is not available due to";
20 struct sof_ipc4_telemetry_slot_data *telemetry_data;
21 struct sof_ipc_dsp_oops_xtensa *xoops;
22 struct xtensa_arch_block *block;
23 u32 slot_offset;
24 char *level;
25
26 level = (flags & SOF_DBG_DUMP_OPTIONAL) ? KERN_DEBUG : KERN_ERR;
27
28 slot_offset = sof_ipc4_find_debug_slot_offset_by_type(sdev, SOF_IPC4_DEBUG_SLOT_TELEMETRY);
29 if (!slot_offset)
30 return;
31
32 telemetry_data = kmalloc(sizeof(*telemetry_data), GFP_KERNEL);
33 if (!telemetry_data)
34 return;
35 sof_mailbox_read(sdev, slot_offset, telemetry_data, sizeof(*telemetry_data));
36 if (telemetry_data->separator != XTENSA_CORE_DUMP_SEPARATOR) {
37 dev_err(sdev->dev, "%s invalid separator %#x\n", invalid_slot_msg,
38 telemetry_data->separator);
39 goto free_telemetry_data;
40 }
41
42 block = kmalloc(sizeof(*block), GFP_KERNEL);
43 if (!block)
44 goto free_telemetry_data;
45
46 sof_mailbox_read(sdev, slot_offset + sizeof(*telemetry_data), block, sizeof(*block));
47 if (block->soc != XTENSA_SOC_INTEL_ADSP) {
48 dev_err(sdev->dev, "%s invalid SOC %d\n", invalid_slot_msg, block->soc);
49 goto free_block;
50 }
51
52 if (telemetry_data->hdr.id[0] != COREDUMP_HDR_ID0 ||
53 telemetry_data->hdr.id[1] != COREDUMP_HDR_ID1 ||
54 telemetry_data->arch_hdr.id != COREDUMP_ARCH_HDR_ID) {
55 dev_err(sdev->dev, "%s invalid coredump header %c%c, arch hdr %c\n",
56 invalid_slot_msg, telemetry_data->hdr.id[0],
57 telemetry_data->hdr.id[1],
58 telemetry_data->arch_hdr.id);
59 goto free_block;
60 }
61
62 switch (block->toolchain) {
63 case XTENSA_TOOL_CHAIN_ZEPHYR:
64 dev_printk(level, sdev->dev, "FW is built with Zephyr toolchain\n");
65 break;
66 case XTENSA_TOOL_CHAIN_XCC:
67 dev_printk(level, sdev->dev, "FW is built with XCC toolchain\n");
68 break;
69 default:
70 dev_printk(level, sdev->dev, "Unknown toolchain is used\n");
71 break;
72 }
73
74 xoops = kzalloc(struct_size(xoops, ar, XTENSA_CORE_AR_REGS_COUNT), GFP_KERNEL);
75 if (!xoops)
76 goto free_block;
77
78 xoops->exccause = block->exccause;
79 xoops->excvaddr = block->excvaddr;
80 xoops->epc1 = block->pc;
81 xoops->ps = block->ps;
82 xoops->sar = block->sar;
83
84 xoops->plat_hdr.numaregs = XTENSA_CORE_AR_REGS_COUNT;
85 memcpy((void *)xoops->ar, block->ar, XTENSA_CORE_AR_REGS_COUNT * sizeof(u32));
86
87 sof_oops(sdev, level, xoops);
88 sof_stack(sdev, level, xoops, NULL, 0);
89
90 kfree(xoops);
91 free_block:
92 kfree(block);
93 free_telemetry_data:
94 kfree(telemetry_data);
95 }
96 EXPORT_SYMBOL_NS(sof_ipc4_intel_dump_telemetry_state, SND_SOC_SOF_INTEL_HDA_COMMON);
97
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