xref: /linux/drivers/net/wireless/ath/ath10k/coredump.h (revision 1e525507)
1 /* SPDX-License-Identifier: ISC */
2 /*
3  * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
4  * Copyright (c) 2022, 2024 Qualcomm Innovation Center, Inc. All rights reserved.
5  */
6 
7 #ifndef _COREDUMP_H_
8 #define _COREDUMP_H_
9 
10 #include "core.h"
11 
12 #define ATH10K_FW_CRASH_DUMP_VERSION 1
13 
14 /**
15  * enum ath10k_fw_crash_dump_type - types of data in the dump file
16  * @ATH10K_FW_CRASH_DUMP_REGISTERS: Register crash dump in binary format
17  * @ATH10K_FW_CRASH_DUMP_CE_DATA: Copy Engine crash dump data
18  * @ATH10K_FW_CRASH_DUMP_RAM_DATA: RAM crash dump data, contains multiple
19  *				   struct ath10k_dump_ram_data_hdr
20  * @ATH10K_FW_CRASH_DUMP_MAX: Maximum enumeration
21  */
22 enum ath10k_fw_crash_dump_type {
23 	ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
24 	ATH10K_FW_CRASH_DUMP_CE_DATA = 1,
25 
26 	/* contains multiple struct ath10k_dump_ram_data_hdr */
27 	ATH10K_FW_CRASH_DUMP_RAM_DATA = 2,
28 
29 	ATH10K_FW_CRASH_DUMP_MAX,
30 };
31 
32 struct ath10k_tlv_dump_data {
33 	/* see ath10k_fw_crash_dump_type above */
34 	__le32 type;
35 
36 	/* in bytes */
37 	__le32 tlv_len;
38 
39 	/* pad to 32-bit boundaries as needed */
40 	u8 tlv_data[];
41 } __packed;
42 
43 struct ath10k_dump_file_data {
44 	/* dump file information */
45 
46 	/* "ATH10K-FW-DUMP" */
47 	char df_magic[16];
48 
49 	__le32 len;
50 
51 	/* file dump version */
52 	__le32 version;
53 
54 	/* some info we can get from ath10k struct that might help */
55 
56 	guid_t guid;
57 
58 	__le32 chip_id;
59 
60 	/* 0 for now, in place for later hardware */
61 	__le32 bus_type;
62 
63 	__le32 target_version;
64 	__le32 fw_version_major;
65 	__le32 fw_version_minor;
66 	__le32 fw_version_release;
67 	__le32 fw_version_build;
68 	__le32 phy_capability;
69 	__le32 hw_min_tx_power;
70 	__le32 hw_max_tx_power;
71 	__le32 ht_cap_info;
72 	__le32 vht_cap_info;
73 	__le32 num_rf_chains;
74 
75 	/* firmware version string */
76 	char fw_ver[ETHTOOL_FWVERS_LEN];
77 
78 	/* Kernel related information */
79 
80 	/* time-of-day stamp */
81 	__le64 tv_sec;
82 
83 	/* time-of-day stamp, nano-seconds */
84 	__le64 tv_nsec;
85 
86 	/* LINUX_VERSION_CODE */
87 	__le32 kernel_ver_code;
88 
89 	/* VERMAGIC_STRING */
90 	char kernel_ver[64];
91 
92 	/* room for growth w/out changing binary format */
93 	u8 unused[128];
94 
95 	/* struct ath10k_tlv_dump_data + more */
96 	u8 data[];
97 } __packed;
98 
99 struct ath10k_dump_ram_data_hdr {
100 	/* enum ath10k_mem_region_type */
101 	__le32 region_type;
102 
103 	__le32 start;
104 
105 	/* length of payload data, not including this header */
106 	__le32 length;
107 
108 	u8 data[];
109 };
110 
111 /* magic number to fill the holes not copied due to sections in regions */
112 #define ATH10K_MAGIC_NOT_COPIED		0xAA
113 
114 /* part of user space ABI */
115 enum ath10k_mem_region_type {
116 	ATH10K_MEM_REGION_TYPE_REG	= 1,
117 	ATH10K_MEM_REGION_TYPE_DRAM	= 2,
118 	ATH10K_MEM_REGION_TYPE_AXI	= 3,
119 	ATH10K_MEM_REGION_TYPE_IRAM1	= 4,
120 	ATH10K_MEM_REGION_TYPE_IRAM2	= 5,
121 	ATH10K_MEM_REGION_TYPE_IOSRAM	= 6,
122 	ATH10K_MEM_REGION_TYPE_IOREG	= 7,
123 	ATH10K_MEM_REGION_TYPE_MSA	= 8,
124 };
125 
126 /* Define a section of the region which should be copied. As not all parts
127  * of the memory is possible to copy, for example some of the registers can
128  * be like that, sections can be used to define what is safe to copy.
129  *
130  * To minimize the size of the array, the list must obey the format:
131  * '{start0,stop0},{start1,stop1},{start2,stop2}....' The values below must
132  * also obey to 'start0 < stop0 < start1 < stop1 < start2 < ...', otherwise
133  * we may encounter error in the dump processing.
134  */
135 struct ath10k_mem_section {
136 	u32 start;
137 	u32 end;
138 };
139 
140 /* One region of a memory layout. If the sections field is null entire
141  * region is copied. If sections is non-null only the areas specified in
142  * sections are copied and rest of the areas are filled with
143  * ATH10K_MAGIC_NOT_COPIED.
144  */
145 struct ath10k_mem_region {
146 	enum ath10k_mem_region_type type;
147 	u32 start;
148 	u32 len;
149 
150 	const char *name;
151 
152 	struct {
153 		const struct ath10k_mem_section *sections;
154 		u32 size;
155 	} section_table;
156 };
157 
158 /* Contains the memory layout of a hardware version identified with the
159  * hardware id, split into regions.
160  */
161 struct ath10k_hw_mem_layout {
162 	u32 hw_id;
163 	u32 hw_rev;
164 	enum ath10k_bus bus;
165 
166 	struct {
167 		const struct ath10k_mem_region *regions;
168 		int size;
169 	} region_table;
170 };
171 
172 /* FIXME: where to put this? */
173 extern unsigned long ath10k_coredump_mask;
174 
175 #ifdef CONFIG_DEV_COREDUMP
176 
177 int ath10k_coredump_submit(struct ath10k *ar);
178 struct ath10k_fw_crash_data *ath10k_coredump_new(struct ath10k *ar);
179 int ath10k_coredump_create(struct ath10k *ar);
180 int ath10k_coredump_register(struct ath10k *ar);
181 void ath10k_coredump_unregister(struct ath10k *ar);
182 void ath10k_coredump_destroy(struct ath10k *ar);
183 
184 const struct ath10k_hw_mem_layout *_ath10k_coredump_get_mem_layout(struct ath10k *ar);
185 const struct ath10k_hw_mem_layout *ath10k_coredump_get_mem_layout(struct ath10k *ar);
186 
187 #else /* CONFIG_DEV_COREDUMP */
188 
189 static inline int ath10k_coredump_submit(struct ath10k *ar)
190 {
191 	return 0;
192 }
193 
194 static inline struct ath10k_fw_crash_data *ath10k_coredump_new(struct ath10k *ar)
195 {
196 	return NULL;
197 }
198 
199 static inline int ath10k_coredump_create(struct ath10k *ar)
200 {
201 	return 0;
202 }
203 
204 static inline int ath10k_coredump_register(struct ath10k *ar)
205 {
206 	return 0;
207 }
208 
209 static inline void ath10k_coredump_unregister(struct ath10k *ar)
210 {
211 }
212 
213 static inline void ath10k_coredump_destroy(struct ath10k *ar)
214 {
215 }
216 
217 static inline const struct ath10k_hw_mem_layout *
218 ath10k_coredump_get_mem_layout(struct ath10k *ar)
219 {
220 	return NULL;
221 }
222 
223 static inline const struct ath10k_hw_mem_layout *
224 _ath10k_coredump_get_mem_layout(struct ath10k *ar)
225 {
226 	return NULL;
227 }
228 
229 #endif /* CONFIG_DEV_COREDUMP */
230 
231 #endif /* _COREDUMP_H_ */
232