mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-29 14:05:19 +08:00
f89f4a06a5
Commit 7bced39751 ("net_dma: simple removal") removed the long-dead
net_dma code, but unintentionally broke the build for the qualcomm
crypto engine (qce) that had accidentally depended on the inclusion of
<linux/dmaengine.h> through the networking header files that used to
have it.
Add the required dmaengine.h include explicitly to fix the breakage.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
61 lines
2.0 KiB
C
61 lines
2.0 KiB
C
/*
|
|
* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 and
|
|
* only version 2 as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef _DMA_H_
|
|
#define _DMA_H_
|
|
|
|
#include <linux/dmaengine.h>
|
|
|
|
/* maximum data transfer block size between BAM and CE */
|
|
#define QCE_BAM_BURST_SIZE 64
|
|
|
|
#define QCE_AUTHIV_REGS_CNT 16
|
|
#define QCE_AUTH_BYTECOUNT_REGS_CNT 4
|
|
#define QCE_CNTRIV_REGS_CNT 4
|
|
|
|
struct qce_result_dump {
|
|
u32 auth_iv[QCE_AUTHIV_REGS_CNT];
|
|
u32 auth_byte_count[QCE_AUTH_BYTECOUNT_REGS_CNT];
|
|
u32 encr_cntr_iv[QCE_CNTRIV_REGS_CNT];
|
|
u32 status;
|
|
u32 status2;
|
|
};
|
|
|
|
#define QCE_IGNORE_BUF_SZ (2 * QCE_BAM_BURST_SIZE)
|
|
#define QCE_RESULT_BUF_SZ \
|
|
ALIGN(sizeof(struct qce_result_dump), QCE_BAM_BURST_SIZE)
|
|
|
|
struct qce_dma_data {
|
|
struct dma_chan *txchan;
|
|
struct dma_chan *rxchan;
|
|
struct qce_result_dump *result_buf;
|
|
void *ignore_buf;
|
|
};
|
|
|
|
int qce_dma_request(struct device *dev, struct qce_dma_data *dma);
|
|
void qce_dma_release(struct qce_dma_data *dma);
|
|
int qce_dma_prep_sgs(struct qce_dma_data *dma, struct scatterlist *sg_in,
|
|
int in_ents, struct scatterlist *sg_out, int out_ents,
|
|
dma_async_tx_callback cb, void *cb_param);
|
|
void qce_dma_issue_pending(struct qce_dma_data *dma);
|
|
int qce_dma_terminate_all(struct qce_dma_data *dma);
|
|
int qce_countsg(struct scatterlist *sg_list, int nbytes, bool *chained);
|
|
void qce_unmapsg(struct device *dev, struct scatterlist *sg, int nents,
|
|
enum dma_data_direction dir, bool chained);
|
|
int qce_mapsg(struct device *dev, struct scatterlist *sg, int nents,
|
|
enum dma_data_direction dir, bool chained);
|
|
struct scatterlist *
|
|
qce_sgtable_add(struct sg_table *sgt, struct scatterlist *sg_add);
|
|
|
|
#endif /* _DMA_H_ */
|