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Commit fb2380a2 authored by Liad Kaufman's avatar Liad Kaufman Committed by Emmanuel Grumbach
Browse files

iwlwifi: mvm: make sure state isn't in d0i3 when collecting fw dbg



This makes sure that we're not trying to read/write any of
the FW debug data collected during d0i3.

Signed-off-by: default avatarLiad Kaufman <liad.kaufman@intel.com>
Reviewed-by: default avatarEliad Peller <eliad@wizery.com>
Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
parent bd999318
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+1 −0
Original line number Original line Diff line number Diff line
@@ -1390,6 +1390,7 @@ static ssize_t iwl_dbgfs_d0i3_refs_read(struct file *file,
	PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
	PRINT_MVM_REF(IWL_MVM_REF_TM_CMD);
	PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
	PRINT_MVM_REF(IWL_MVM_REF_EXIT_WORK);
	PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
	PRINT_MVM_REF(IWL_MVM_REF_PROTECT_CSA);
	PRINT_MVM_REF(IWL_MVM_REF_FW_DBG_COLLECT);


	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
}
+1 −0
Original line number Original line Diff line number Diff line
@@ -276,6 +276,7 @@ enum iwl_mvm_ref_type {
	IWL_MVM_REF_TM_CMD,
	IWL_MVM_REF_TM_CMD,
	IWL_MVM_REF_EXIT_WORK,
	IWL_MVM_REF_EXIT_WORK,
	IWL_MVM_REF_PROTECT_CSA,
	IWL_MVM_REF_PROTECT_CSA,
	IWL_MVM_REF_FW_DBG_COLLECT,


	/* update debugfs.c when changing this */
	/* update debugfs.c when changing this */


+5 −0
Original line number Original line Diff line number Diff line
@@ -818,9 +818,14 @@ static void iwl_mvm_fw_error_dump_wk(struct work_struct *work)
	struct iwl_mvm *mvm =
	struct iwl_mvm *mvm =
		container_of(work, struct iwl_mvm, fw_error_dump_wk);
		container_of(work, struct iwl_mvm, fw_error_dump_wk);


	if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_FW_DBG_COLLECT))
		return;

	mutex_lock(&mvm->mutex);
	mutex_lock(&mvm->mutex);
	iwl_mvm_fw_error_dump(mvm);
	iwl_mvm_fw_error_dump(mvm);
	mutex_unlock(&mvm->mutex);
	mutex_unlock(&mvm->mutex);

	iwl_mvm_unref(mvm, IWL_MVM_REF_FW_DBG_COLLECT);
}
}


void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)