iwlwifi: mvm: add iccm data to 8000 b-step data dump

In 8000 HW family B-step only, the ICCM is separate
from the SRAM. This adds the ICCM to the dump data
collected for FW debug.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index babe8922faeb..a3a84d1523bc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1007,6 +1007,9 @@ void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
         mvm->fw_dump_desc = NULL;
 }
 
+#define IWL8260_ICCM_OFFSET             0x44000 /* Only for B-step */
+#define IWL8260_ICCM_LEN                0xC000 /* Only for B-step */
+
 void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
 {
         struct iwl_fw_error_dump_file *dump_file;
@@ -1083,6 +1086,14 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
                    fifo_data_len +
                    sizeof(*dump_info);
 
+        /*
+         * In 8000 HW family B-step include the ICCM (which resides separately)
+         */
+        if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
+            CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
+                file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
+                            IWL8260_ICCM_LEN;
+
         if (mvm->fw_dump_desc)
                 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
                             mvm->fw_dump_desc->len;
@@ -1170,6 +1181,19 @@ void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
                                          dump_mem->data, sram2_len);
         }
 
+        if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
+            CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
+                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(IWL8260_ICCM_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(IWL8260_ICCM_OFFSET);
+                iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
+                                         dump_mem->data, IWL8260_ICCM_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)