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iwlwifi: yoyo: dump IMR DRAM only for HW and FW error

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Support debug collection of the platform IMR memory region
only for HW and FW error. This region needs to be collected
as the last region.

Signed-off-by: Mukesh Sisodiya <mukesh.sisodiya@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220304131517.5b70e5ba9a41.I502f9b6179b97b163992729edd2b3c5c4ca9e311@changeid
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Mukesh Sisodiya 2022-03-04 13:21:23 +02:00 committed by Luca Coelho
parent 1c4db7613f
commit a6d21729ff
1 changed files with 25 additions and 0 deletions
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25
drivers/net/wireless/intel/iwlwifi/fw/dbg.c
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@ -2430,6 +2430,9 @@ static u32 iwl_dump_ini_trigger(struct iwl_fw_runtime *fwrt,
struct iwl_dump_ini_region_data reg_data = {
.dump_data = dump_data,
};
struct iwl_dump_ini_region_data imr_reg_data = {
.dump_data = dump_data,
};
int i;
u32 size = 0;
u64 regions_mask = le64_to_cpu(trigger->regions_mask) &
@ -2465,10 +2468,32 @@ static u32 iwl_dump_ini_trigger(struct iwl_fw_runtime *fwrt,
tp_id);
continue;
}
/*
* DRAM_IMR can be collected only for FW/HW error timepoint
* when fw is not alive. In addition, it must be collected
* lastly as it overwrites SRAM that can possibly contain
* debug data which also need to be collected.
*/
if (reg_type == IWL_FW_INI_REGION_DRAM_IMR) {
if (tp_id == IWL_FW_INI_TIME_POINT_FW_ASSERT ||
tp_id == IWL_FW_INI_TIME_POINT_FW_HW_ERROR)
imr_reg_data.reg_tlv = fwrt->trans->dbg.active_regions[i];
else
IWL_INFO(fwrt,
"WRT: trying to collect DRAM_IMR at time point: %d, skipping\n",
tp_id);
/* continue to next region */
continue;
}
size += iwl_dump_ini_mem(fwrt, list, &reg_data,
&iwl_dump_ini_region_ops[reg_type]);
}
/* collect DRAM_IMR region in the last */
if (imr_reg_data.reg_tlv)
size += iwl_dump_ini_mem(fwrt, list, &reg_data,
&iwl_dump_ini_region_ops[IWL_FW_INI_REGION_DRAM_IMR]);
if (size)
size += iwl_dump_ini_info(fwrt, trigger, list);