drivers/net/wireless/ath/ath10k/coredump.h

   1 /* SPDX-License-Identifier: ISC */
   2 /*
   3  * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
   4  */
   5
   6 #ifndef _COREDUMP_H_
   7 #define _COREDUMP_H_
   8
   9 #include "core.h"
  10
  11 #define ATH10K_FW_CRASH_DUMP_VERSION 1
  12
  13 /**
  14  * enum ath10k_fw_crash_dump_type - types of data in the dump file
  15  * @ATH10K_FW_CRASH_DUMP_REGDUMP: Register crash dump in binary format
  16  */
  17 enum ath10k_fw_crash_dump_type {
  18         ATH10K_FW_CRASH_DUMP_REGISTERS = 0,
  19         ATH10K_FW_CRASH_DUMP_CE_DATA = 1,
  20
  21         /* contains multiple struct ath10k_dump_ram_data_hdr */
  22         ATH10K_FW_CRASH_DUMP_RAM_DATA = 2,
  23
  24         ATH10K_FW_CRASH_DUMP_MAX,
  25 };
  26
  27 struct ath10k_tlv_dump_data {
  28         /* see ath10k_fw_crash_dump_type above */
  29         __le32 type;
  30
  31         /* in bytes */
  32         __le32 tlv_len;
  33
  34         /* pad to 32-bit boundaries as needed */
  35         u8 tlv_data[];
  36 } __packed;
  37
  38 struct ath10k_dump_file_data {
  39         /* dump file information */
  40
  41         /* "ATH10K-FW-DUMP" */
  42         char df_magic[16];
  43
  44         __le32 len;
  45
  46         /* file dump version */
  47         __le32 version;
  48
  49         /* some info we can get from ath10k struct that might help */
  50
  51         guid_t guid;
  52
  53         __le32 chip_id;
  54
  55         /* 0 for now, in place for later hardware */
  56         __le32 bus_type;
  57
  58         __le32 target_version;
  59         __le32 fw_version_major;
  60         __le32 fw_version_minor;
  61         __le32 fw_version_release;
  62         __le32 fw_version_build;
  63         __le32 phy_capability;
  64         __le32 hw_min_tx_power;
  65         __le32 hw_max_tx_power;
  66         __le32 ht_cap_info;
  67         __le32 vht_cap_info;
  68         __le32 num_rf_chains;
  69
  70         /* firmware version string */
  71         char fw_ver[ETHTOOL_FWVERS_LEN];
  72
  73         /* Kernel related information */
  74
  75         /* time-of-day stamp */
  76         __le64 tv_sec;
  77
  78         /* time-of-day stamp, nano-seconds */
  79         __le64 tv_nsec;
  80
  81         /* LINUX_VERSION_CODE */
  82         __le32 kernel_ver_code;
  83
  84         /* VERMAGIC_STRING */
  85         char kernel_ver[64];
  86
  87         /* room for growth w/out changing binary format */
  88         u8 unused[128];
  89
  90         /* struct ath10k_tlv_dump_data + more */
  91         u8 data[0];
  92 } __packed;
  93
  94 struct ath10k_dump_ram_data_hdr {
  95         /* enum ath10k_mem_region_type */
  96         __le32 region_type;
  97
  98         __le32 start;
  99
 100         /* length of payload data, not including this header */
 101         __le32 length;
 102
 103         u8 data[0];
 104 };
 105
 106 /* magic number to fill the holes not copied due to sections in regions */
 107 #define ATH10K_MAGIC_NOT_COPIED         0xAA
 108
 109 /* part of user space ABI */
 110 enum ath10k_mem_region_type {
 111         ATH10K_MEM_REGION_TYPE_REG      = 1,
 112         ATH10K_MEM_REGION_TYPE_DRAM     = 2,
 113         ATH10K_MEM_REGION_TYPE_AXI      = 3,
 114         ATH10K_MEM_REGION_TYPE_IRAM1    = 4,
 115         ATH10K_MEM_REGION_TYPE_IRAM2    = 5,
 116         ATH10K_MEM_REGION_TYPE_IOSRAM   = 6,
 117         ATH10K_MEM_REGION_TYPE_IOREG    = 7,
 118 };
 119
 120 /* Define a section of the region which should be copied. As not all parts
 121  * of the memory is possible to copy, for example some of the registers can
 122  * be like that, sections can be used to define what is safe to copy.
 123  *
 124  * To minimize the size of the array, the list must obey the format:
 125  * '{start0,stop0},{start1,stop1},{start2,stop2}....' The values below must
 126  * also obey to 'start0 < stop0 < start1 < stop1 < start2 < ...', otherwise
 127  * we may encouter error in the dump processing.
 128  */
 129 struct ath10k_mem_section {
 130         u32 start;
 131         u32 end;
 132 };
 133
 134 /* One region of a memory layout. If the sections field is null entire
 135  * region is copied. If sections is non-null only the areas specified in
 136  * sections are copied and rest of the areas are filled with
 137  * ATH10K_MAGIC_NOT_COPIED.
 138  */
 139 struct ath10k_mem_region {
 140         enum ath10k_mem_region_type type;
 141         u32 start;
 142         u32 len;
 143
 144         const char *name;
 145
 146         struct {
 147                 const struct ath10k_mem_section *sections;
 148                 u32 size;
 149         } section_table;
 150 };
 151
 152 /* Contains the memory layout of a hardware version identified with the
 153  * hardware id, split into regions.
 154  */
 155 struct ath10k_hw_mem_layout {
 156         u32 hw_id;
 157         u32 hw_rev;
 158
 159         struct {
 160                 const struct ath10k_mem_region *regions;
 161                 int size;
 162         } region_table;
 163 };
 164
 165 /* FIXME: where to put this? */
 166 extern unsigned long ath10k_coredump_mask;
 167
 168 #ifdef CONFIG_DEV_COREDUMP
 169
 170 int ath10k_coredump_submit(struct ath10k *ar);
 171 struct ath10k_fw_crash_data *ath10k_coredump_new(struct ath10k *ar);
 172 int ath10k_coredump_create(struct ath10k *ar);
 173 int ath10k_coredump_register(struct ath10k *ar);
 174 void ath10k_coredump_unregister(struct ath10k *ar);
 175 void ath10k_coredump_destroy(struct ath10k *ar);
 176
 177 const struct ath10k_hw_mem_layout *ath10k_coredump_get_mem_layout(struct ath10k *ar);
 178
 179 #else /* CONFIG_DEV_COREDUMP */
 180
 181 static inline int ath10k_coredump_submit(struct ath10k *ar)
 182 {
 183         return 0;
 184 }
 185
 186 static inline struct ath10k_fw_crash_data *ath10k_coredump_new(struct ath10k *ar)
 187 {
 188         return NULL;
 189 }
 190
 191 static inline int ath10k_coredump_create(struct ath10k *ar)
 192 {
 193         return 0;
 194 }
 195
 196 static inline int ath10k_coredump_register(struct ath10k *ar)
 197 {
 198         return 0;
 199 }
 200
 201 static inline void ath10k_coredump_unregister(struct ath10k *ar)
 202 {
 203 }
 204
 205 static inline void ath10k_coredump_destroy(struct ath10k *ar)
 206 {
 207 }
 208
 209 static inline const struct ath10k_hw_mem_layout *
 210 ath10k_coredump_get_mem_layout(struct ath10k *ar)
 211 {
 212         return NULL;
 213 }
 214
 215 #endif /* CONFIG_DEV_COREDUMP */
 216
 217 #endif /* _COREDUMP_H_ */