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>
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index c4552b5..b5f401d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -778,14 +778,19 @@
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 @@
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 @@
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)