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iwlwifi: mvm: add support for dumping a secondary SRAM 

Some HW modules have two SRAMs. In such cases add the secondary SRAM to
the list of dumped segments.

Signed-off-by: Ido Yariv <idox.yariv@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Ido Yariv 2014-12-10 12:39:27 -05:00 committed by Emmanuel Grumbach
parent e39c1b5f5e
commit 861383249d
3 changed files with 32 additions and 4 deletions
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4
drivers/net/wireless/iwlwifi/iwl-8000.c
View File

@ -84,6 +84,8 @@
/* Memory offsets and lengths */
#define IWL8260_DCCM_OFFSET 0x800000
#define IWL8260_DCCM_LEN 0x18000
#define IWL8260_DCCM2_OFFSET 0x880000
#define IWL8260_DCCM2_LEN 0x8000
#define IWL8260_SMEM_OFFSET 0x400000
#define IWL8260_SMEM_LEN 0x68000
@ -134,6 +136,8 @@ static const struct iwl_ht_params iwl8000_ht_params = {
.non_shared_ant = ANT_A, \
.dccm_offset = IWL8260_DCCM_OFFSET, \
.dccm_len = IWL8260_DCCM_LEN, \
.dccm2_offset = IWL8260_DCCM2_OFFSET, \
.dccm2_len = IWL8260_DCCM2_LEN, \
.smem_offset = IWL8260_SMEM_OFFSET, \
.smem_len = IWL8260_SMEM_LEN

4
drivers/net/wireless/iwlwifi/iwl-config.h
View File

@ -263,6 +263,8 @@ struct iwl_pwr_tx_backoff {
* station can receive in VHT
* @dccm_offset: offset from which DCCM begins
* @dccm_len: length of DCCM (including runtime stack CCM)
* @dccm2_offset: offset from which the second DCCM begins
* @dccm2_len: length of the second DCCM
* @smem_offset: offset from which the SMEM begins
* @smem_len: the length of SMEM
*
@ -310,6 +312,8 @@ struct iwl_cfg {
unsigned int max_vht_ampdu_exponent;
const u32 dccm_offset;
const u32 dccm_len;
const u32 dccm2_offset;
const u32 dccm2_len;
const u32 smem_offset;
const u32 smem_len;
};

28
drivers/net/wireless/iwlwifi/mvm/mac80211.c
View File

@ -778,14 +778,19 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
unsigned long flags;
int reg_val;
u32 smem_len = mvm->cfg->smem_len;
u32 sram2_len = mvm->cfg->dccm2_len;
lockdep_assert_held(&mvm->mutex);
/* W/A for 8000 HW family A-step */
if (mvm->cfg->smem_len &&
mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP)
smem_len = 0x38000;
if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) {
if (smem_len)
smem_len = 0x38000;
if (sram2_len)
sram2_len = 0x10000;
}
fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
if (!fw_error_dump)
@ -820,6 +825,10 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
if (smem_len)
file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
/* Make room for the secondary SRAM, if it exists */
if (sram2_len)
file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
dump_file = vzalloc(file_len);
if (!dump_file) {
kfree(fw_error_dump);
@ -884,6 +893,17 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
dump_mem->data, smem_len);
}
if (sram2_len) {
dump_data = iwl_fw_error_next_data(dump_data);
dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
dump_mem = (void *)dump_data->data;
dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
dump_mem->data, sram2_len);
}
fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
fw_error_dump->op_mode_len = file_len;
if (fw_error_dump->trans_ptr)