Lines Matching +full:dma +full:- +full:related

1 /* SPDX-License-Identifier: GPL-2.0 */
3 /* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
4  * Copyright (C) 2019-2024 Linaro Ltd.
10 #include <linux/dma-direction.h>
28  * struct gsi_trans - a GSI transaction
40  * @direction:	DMA transfer direction (DMA_NONE for commands)
75  * gsi_trans_pool_init() - Initialize a pool of structures for transactions
87  * gsi_trans_pool_alloc() - Allocate one or more elements from a pool
96  * gsi_trans_pool_exit() - Inverse of gsi_trans_pool_init()
102  * gsi_trans_pool_init_dma() - Initialize a pool of DMA-able structures
103  * @dev:	Device used for DMA
111  * Structures in this pool reside in DMA-coherent memory.
117  * gsi_trans_pool_alloc_dma() - Allocate an element from a DMA pool
118  * @pool:	DMA pool pointer
119  * @addr:	DMA address "handle" associated with the allocation
123  * Only one element at a time may be allocated from a DMA pool.
128  * gsi_trans_pool_exit_dma() - Inverse of gsi_trans_pool_init_dma()
129  * @dev:	Device used for DMA
135  * gsi_channel_trans_idle() - Return whether no transactions are allocated
145  * gsi_channel_trans_alloc() - Allocate a GSI transaction on a channel
149  * @direction:	DMA direction for entire SGL (or DMA_NONE)
159  * gsi_trans_free() - Free a previously-allocated GSI transaction
165  * gsi_trans_cmd_add() - Add an immediate command to a transaction
169  * @addr:	DMA address for payload
176  * gsi_trans_page_add() - Add a page transfer to a transaction
186  * gsi_trans_skb_add() - Add a socket transfer to a transaction
190  * Return:	0, or -EMSGSIZE if socket data won't fit in transaction.
195  * gsi_trans_commit() - Commit a GSI transaction
202  * gsi_trans_commit_wait() - Commit a GSI transaction and wait for it
209  * gsi_trans_read_byte() - Issue a single byte read TRE on a channel
212  * @addr:	DMA address into which to transfer the one byte
220  * gsi_trans_read_byte_done() - Clean up after a single byte read TRE
224  * This function needs to be called to signal that the work related