| /* SPDX-License-Identifier: GPL-2.0 */ |
| |
| /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved. |
| * Copyright (C) 2019-2020 Linaro Ltd. |
| */ |
| #ifndef _IPA_GSI_TRANS_H_ |
| #define _IPA_GSI_TRANS_H_ |
| |
| #include <linux/types.h> |
| |
| struct gsi; |
| struct gsi_trans; |
| struct ipa_gsi_endpoint_data; |
| |
| /** |
| * ipa_gsi_trans_complete() - GSI transaction completion callback |
| * @trans: Transaction that has completed |
| * |
| * This called from the GSI layer to notify the IPA layer that a |
| * transaction has completed. |
| */ |
| void ipa_gsi_trans_complete(struct gsi_trans *trans); |
| |
| /** |
| * ipa_gsi_trans_release() - GSI transaction release callback |
| * @trans: Transaction whose resources should be freed |
| * |
| * This called from the GSI layer to notify the IPA layer that a |
| * transaction is about to be freed, so any resources associated |
| * with it should be released. |
| */ |
| void ipa_gsi_trans_release(struct gsi_trans *trans); |
| |
| /** |
| * ipa_gsi_channel_tx_queued() - GSI queued to hardware notification |
| * @gsi: GSI pointer |
| * @channel_id: Channel number |
| * @count: Number of transactions queued |
| * @byte_count: Number of bytes to transfer represented by transactions |
| * |
| * This called from the GSI layer to notify the IPA layer that some |
| * number of transactions have been queued to hardware for execution. |
| */ |
| void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count, |
| u32 byte_count); |
| /** |
| * ipa_gsi_trans_complete() - GSI transaction completion callback |
| ipa_gsi_channel_tx_completed() |
| * @gsi: GSI pointer |
| * @channel_id: Channel number |
| * @count: Number of transactions completed since last report |
| * @byte_count: Number of bytes transferred represented by transactions |
| * |
| * This called from the GSI layer to notify the IPA layer that the hardware |
| * has reported the completion of some number of transactions. |
| */ |
| void ipa_gsi_channel_tx_completed(struct gsi *gsi, u32 channel_id, u32 count, |
| u32 byte_count); |
| |
| bool ipa_gsi_endpoint_data_empty(const struct ipa_gsi_endpoint_data *data); |
| |
| #endif /* _IPA_GSI_TRANS_H_ */ |
