| Alex Elder | c3f398b | 2020-03-05 22:28:22 -0600 | [diff] [blame^] | 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 | |
| 11 | struct gsi_trans; |
| 12 | |
| 13 | /** |
| 14 | * ipa_gsi_trans_complete() - GSI transaction completion callback |
| 15 | * @trans: Transaction that has completed |
| 16 | * |
| 17 | * This called from the GSI layer to notify the IPA layer that a |
| 18 | * transaction has completed. |
| 19 | */ |
| 20 | void ipa_gsi_trans_complete(struct gsi_trans *trans); |
| 21 | |
| 22 | /** |
| 23 | * ipa_gsi_trans_release() - GSI transaction release callback |
| 24 | * @trans: Transaction whose resources should be freed |
| 25 | * |
| 26 | * This called from the GSI layer to notify the IPA layer that a |
| 27 | * transaction is about to be freed, so any resources associated |
| 28 | * with it should be released. |
| 29 | */ |
| 30 | void ipa_gsi_trans_release(struct gsi_trans *trans); |
| 31 | |
| 32 | /** |
| 33 | * ipa_gsi_channel_tx_queued() - GSI queued to hardware notification |
| 34 | * @gsi: GSI pointer |
| 35 | * @channel_id: Channel number |
| 36 | * @count: Number of transactions queued |
| 37 | * @byte_count: Number of bytes to transfer represented by transactions |
| 38 | * |
| 39 | * This called from the GSI layer to notify the IPA layer that some |
| 40 | * number of transactions have been queued to hardware for execution. |
| 41 | */ |
| 42 | void ipa_gsi_channel_tx_queued(struct gsi *gsi, u32 channel_id, u32 count, |
| 43 | u32 byte_count); |
| 44 | /** |
| 45 | * ipa_gsi_trans_complete() - GSI transaction completion callback |
| 46 | ipa_gsi_channel_tx_completed() |
| 47 | * @gsi: GSI pointer |
| 48 | * @channel_id: Channel number |
| 49 | * @count: Number of transactions completed since last report |
| 50 | * @byte_count: Number of bytes transferred represented by transactions |
| 51 | * |
| 52 | * This called from the GSI layer to notify the IPA layer that the hardware |
| 53 | * has reported the completion of some number of transactions. |
| 54 | */ |
| 55 | void ipa_gsi_channel_tx_completed(struct gsi *gsi, u32 channel_id, u32 count, |
| 56 | u32 byte_count); |
| 57 | |
| 58 | bool ipa_gsi_endpoint_data_empty(const struct ipa_gsi_endpoint_data *data); |
| 59 | |
| 60 | #endif /* _IPA_GSI_TRANS_H_ */ |