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iwlwifi: dbg: add dumping special device memory

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With the new region we can handle in user space understanding
the struct type and version and driver doesn't need to be involved
at all.

Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200926002540.88c431fad7da.I282944cbad5aa367735a9f9a5c47cfbd107a5fc0@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Mordechay Goodstein 2020-09-26 00:30:40 +03:00 committed by Luca Coelho
parent 4c447cfadd
commit ba8f6f4ae2
4 changed files with 99 additions and 0 deletions
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22
drivers/net/wireless/intel/iwlwifi/fw/api/dbg-tlv.h
View File

@ -134,6 +134,25 @@ struct iwl_fw_ini_region_err_table {
__le32 offset;
} __packed; /* FW_TLV_DEBUG_REGION_ERROR_TABLE_API_S_VER_1 */
/**
* struct iwl_fw_ini_region_special_device_memory - special device memory
*
* Configuration to read a special memory
*
* @type: type of the special memory
* @version: version of the special memory
* @base_addr: base address of the error table
* @size: size of the error table
* @offset: offset to add to &base_addr
*/
struct iwl_fw_ini_region_special_device_memory {
__le16 type;
__le16 version;
__le32 base_addr;
__le32 size;
__le32 offset;
} __packed; /* FW_TLV_DEBUG_REGION_SPECIAL_DEVICE_ADDR_API_S_VER_1 */
/**
* struct iwl_fw_ini_region_internal_buffer - internal buffer region data
*
@ -185,6 +204,7 @@ struct iwl_fw_ini_region_tlv {
struct iwl_fw_ini_region_fifos fifos;
struct iwl_fw_ini_region_err_table err_table;
struct iwl_fw_ini_region_internal_buffer internal_buffer;
struct iwl_fw_ini_region_special_device_memory special_mem;
__le32 dram_alloc_id;
__le32 tlv_mask;
}; /* FW_TLV_DEBUG_REGION_CONF_PARAMS_API_U_VER_1 */
@ -327,6 +347,7 @@ enum iwl_fw_ini_buffer_location {
* @IWL_FW_INI_REGION_CSR: CSR registers
* @IWL_FW_INI_REGION_DRAM_IMR: IMR memory
* @IWL_FW_INI_REGION_PCI_IOSF_CONFIG: PCI/IOSF config
* @IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY: special device memroy
* @IWL_FW_INI_REGION_NUM: number of region types
*/
enum iwl_fw_ini_region_type {
@ -347,6 +368,7 @@ enum iwl_fw_ini_region_type {
IWL_FW_INI_REGION_CSR,
IWL_FW_INI_REGION_DRAM_IMR,
IWL_FW_INI_REGION_PCI_IOSF_CONFIG,
IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY,
IWL_FW_INI_REGION_NUM
}; /* FW_TLV_DEBUG_REGION_TYPE_API_E */

56
drivers/net/wireless/intel/iwlwifi/fw/dbg.c
View File

@ -1507,6 +1507,27 @@ iwl_dump_ini_err_table_iter(struct iwl_fw_runtime *fwrt,
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static int
iwl_dump_ini_special_mem_iter(struct iwl_fw_runtime *fwrt,
struct iwl_dump_ini_region_data *reg_data,
void *range_ptr, int idx)
{
struct iwl_fw_ini_region_tlv *reg = (void *)reg_data->reg_tlv->data;
struct iwl_fw_ini_region_special_device_memory *special_mem =
&reg->special_mem;
struct iwl_fw_ini_error_dump_range *range = range_ptr;
u32 addr = le32_to_cpu(special_mem->base_addr) +
le32_to_cpu(special_mem->offset);
range->internal_base_addr = cpu_to_le32(addr);
range->range_data_size = special_mem->size;
iwl_trans_read_mem_bytes(fwrt->trans, addr, range->data,
le32_to_cpu(special_mem->size));
return sizeof(*range) + le32_to_cpu(range->range_data_size);
}
static int iwl_dump_ini_fw_pkt_iter(struct iwl_fw_runtime *fwrt,
struct iwl_dump_ini_region_data *reg_data,
void *range_ptr, int idx)
@ -1636,6 +1657,21 @@ iwl_dump_ini_err_table_fill_header(struct iwl_fw_runtime *fwrt,
return dump->ranges;
}
static void *
iwl_dump_ini_special_mem_fill_header(struct iwl_fw_runtime *fwrt,
struct iwl_dump_ini_region_data *reg_data,
void *data)
{
struct iwl_fw_ini_region_tlv *reg = (void *)reg_data->reg_tlv->data;
struct iwl_fw_ini_special_device_memory *dump = data;
dump->header.version = cpu_to_le32(IWL_INI_DUMP_VER);
dump->type = reg->special_mem.type;
dump->version = reg->special_mem.version;
return dump->ranges;
}
static u32 iwl_dump_ini_mem_ranges(struct iwl_fw_runtime *fwrt,
struct iwl_dump_ini_region_data *reg_data)
{
@ -1826,6 +1862,20 @@ iwl_dump_ini_err_table_get_size(struct iwl_fw_runtime *fwrt,
return size;
}
static u32
iwl_dump_ini_special_mem_get_size(struct iwl_fw_runtime *fwrt,
struct iwl_dump_ini_region_data *reg_data)
{
struct iwl_fw_ini_region_tlv *reg = (void *)reg_data->reg_tlv->data;
u32 size = le32_to_cpu(reg->special_mem.size);
if (size)
size += sizeof(struct iwl_fw_ini_special_device_memory) +
sizeof(struct iwl_fw_ini_error_dump_range);
return size;
}
static u32
iwl_dump_ini_fw_pkt_get_size(struct iwl_fw_runtime *fwrt,
struct iwl_dump_ini_region_data *reg_data)
@ -2125,6 +2175,12 @@ static const struct iwl_dump_ini_mem_ops iwl_dump_ini_region_ops[] = {
.fill_mem_hdr = iwl_dump_ini_mem_fill_header,
.fill_range = iwl_dump_ini_config_iter,
},
[IWL_FW_INI_REGION_SPECIAL_DEVICE_MEMORY] = {
.get_num_of_ranges = iwl_dump_ini_single_range,
.get_size = iwl_dump_ini_special_mem_get_size,
.fill_mem_hdr = iwl_dump_ini_special_mem_fill_header,
.fill_range = iwl_dump_ini_special_mem_iter,
},
};
static u32 iwl_dump_ini_trigger(struct iwl_fw_runtime *fwrt,

14
drivers/net/wireless/intel/iwlwifi/fw/error-dump.h
View File

@ -494,6 +494,20 @@ struct iwl_fw_ini_monitor_dump {
struct iwl_fw_ini_error_dump_range ranges[];
} __packed;
/**
* struct iwl_fw_ini_special_device_memory - special device memory
* @header: header of the region
* @type: type of special memory
* @version: struct special memory version
* @ranges: the memory ranges of this this region
*/
struct iwl_fw_ini_special_device_memory {
struct iwl_fw_ini_error_dump_header header;
__le16 type;
__le16 version;
struct iwl_fw_ini_error_dump_range ranges[];
} __packed;
/**
* struct iwl_fw_error_dump_paging - content of the UMAC's image page
* block on DRAM

7
drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c
View File

@ -233,6 +233,13 @@ static int iwl_dbg_tlv_alloc_region(struct iwl_trans *trans,
if (le32_to_cpu(tlv->length) < sizeof(*reg))
return -EINVAL;
/* For safe using a string from FW make sure we have a
* null terminator
*/
reg->name[IWL_FW_INI_MAX_NAME - 1] = 0;
IWL_DEBUG_FW(trans, "WRT: parsing region: %s\n", reg->name);
if (id >= IWL_FW_INI_MAX_REGION_ID) {
IWL_ERR(trans, "WRT: Invalid region id %u\n", id);
return -EINVAL;