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1/* SPDX-License-Identifier: GPL-2.0 */2 3/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.4 * Copyright (C) 2019-2020 Linaro Ltd.5 */6#ifndef _IPA_GSI_TRANS_H_7#define _IPA_GSI_TRANS_H_8 9#include <linux/types.h>10 11struct gsi;12struct gsi_trans;13struct ipa_gsi_endpoint_data;14 15/**16 * ipa_gsi_trans_complete() - GSI transaction completion callback17 * @trans: Transaction that has completed18 *19 * This called from the GSI layer to notify the IPA layer that a20 * transaction has completed.21 */22void ipa_gsi_trans_complete(struct gsi_trans *trans);23 24/**25 * ipa_gsi_trans_release() - GSI transaction release callback26 * @trans: Transaction whose resources should be freed27 *28 * This called from the GSI layer to notify the IPA layer that a29 * transaction is about to be freed, so any resources associated30 * with it should be released.31 */32void ipa_gsi_trans_release(struct gsi_trans *trans);33 34/**35 * ipa_gsi_channel_tx_queued() - GSI queued to hardware notification36 * @gsi: GSI pointer37 * @channel_id: Channel number38 * @count: Number of transactions queued39 * @byte_count: Number of bytes to transfer represented by transactions40 *41 * This called from the GSI layer to notify the IPA layer that some42 * number of transactions have been queued to hardware for execution.43 */44void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count,45 u32 byte_count);46 47/**48 * ipa_gsi_channel_tx_completed() - GSI transaction completion callback49 * @gsi: GSI pointer50 * @channel_id: Channel number51 * @count: Number of transactions completed since last report52 * @byte_count: Number of bytes transferred represented by transactions53 *54 * This called from the GSI layer to notify the IPA layer that the hardware55 * has reported the completion of some number of transactions.56 */57void ipa_gsi_channel_tx_completed(struct gsi *gsi, u32 channel_id, u32 count,58 u32 byte_count);59 60/* ipa_gsi_endpoint_data_empty() - Empty endpoint config data test61 * @data: endpoint configuration data62 *63 * Determines whether an endpoint configuration data entry is empty,64 * meaning it contains no valid configuration information and should65 * be ignored.66 *67 * Return: true if empty; false otherwise68 */69bool ipa_gsi_endpoint_data_empty(const struct ipa_gsi_endpoint_data *data);70 71#endif /* _IPA_GSI_TRANS_H_ */72