From e06d8437cdf903a39bf93f16338c5b5a37810017 Mon Sep 17 00:00:00 2001 From: Emmanuel Grumbach Date: Tue, 9 Dec 2014 14:36:41 +0200 Subject: [PATCH] iwlwifi: mvm: change SMEM dump to general purpose memory dump Instead of adding a dump type for each type of memory, change the SMEM type to be a general purpose memory dump. Add the type of the memory and its offset in the device in the dump itself. This will allow an external parser to know where this memory came from. Note that since this type isn't really in use yet, this is not a real problem. Reviewed-by: Liad Kaufman Signed-off-by: Emmanuel Grumbach --- .../net/wireless/iwlwifi/iwl-fw-error-dump.h | 21 +++++++++++++++++-- drivers/net/wireless/iwlwifi/mvm/mac80211.c | 14 +++++++++---- 2 files changed, 29 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h index c6a81a760cf6..c0fe82c13007 100644 --- a/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h +++ b/drivers/net/wireless/iwlwifi/iwl-fw-error-dump.h @@ -82,7 +82,7 @@ * @IWL_FW_ERROR_DUMP_PRPH: range of periphery registers - there can be several * sections like this in a single file. * @IWL_FW_ERROR_DUMP_FH_REGS: range of FH registers - * @IWL_FW_ERROR_DUMP_SMEM: + * @IWL_FW_ERROR_DUMP_MEM: chunk of memory */ enum iwl_fw_error_dump_type { IWL_FW_ERROR_DUMP_SRAM = 0, @@ -94,7 +94,7 @@ enum iwl_fw_error_dump_type { IWL_FW_ERROR_DUMP_PRPH = 6, IWL_FW_ERROR_DUMP_TXF = 7, IWL_FW_ERROR_DUMP_FH_REGS = 8, - IWL_FW_ERROR_DUMP_SMEM = 9, + IWL_FW_ERROR_DUMP_MEM = 9, IWL_FW_ERROR_DUMP_MAX, }; @@ -182,6 +182,23 @@ struct iwl_fw_error_dump_prph { __le32 data[]; }; +enum iwl_fw_error_dump_mem_type { + IWL_FW_ERROR_DUMP_MEM_SRAM, + IWL_FW_ERROR_DUMP_MEM_SMEM, +}; + +/** + * struct iwl_fw_error_dump_mem - chunk of memory + * @type: %enum iwl_fw_error_dump_mem_type + * @offset: the offset from which the memory was read + * @data: the content of the memory + */ +struct iwl_fw_error_dump_mem { + __le32 type; + __le32 offset; + u8 data[]; +}; + /** * iwl_fw_error_next_data - advance fw error dump data pointer * @data: previous data block diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index d5d1cdaa0310..e24de9712476 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -815,7 +815,8 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) /* Make room for the SMEM, if it exists */ if (smem_len) - file_len += sizeof(*dump_data) + smem_len; + file_len += sizeof(*dump_data) + + sizeof(struct iwl_fw_error_dump_mem) + smem_len; dump_file = vzalloc(file_len); if (!dump_file) { @@ -868,11 +869,16 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm) sram_len); if (smem_len) { + struct iwl_fw_error_dump_mem *dump_mem; + dump_data = iwl_fw_error_next_data(dump_data); - dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SMEM); - dump_data->len = cpu_to_le32(smem_len); + dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM); + dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem)); + dump_mem = (void *)dump_data->data; + dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM); + dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset); iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset, - dump_data->data, smem_len); + dump_mem->data, smem_len); } fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans); -- 2.20.1