1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */
4 /* \file cc_buffer_mgr.h
8 #ifndef __CC_BUFFER_MGR_H__
9 #define __CC_BUFFER_MGR_H__
11 #include <crypto/algapi.h>
13 #include "cc_driver.h"
15 enum cc_req_dma_buf_type {
21 enum cc_sg_cpy_direct {
28 unsigned int mapped_nents;
29 unsigned int nents; //sg nents
30 unsigned int mlli_nents; //mlli nents might be different than the above
34 struct dma_pool *curr_pool;
36 dma_addr_t mlli_dma_addr;
40 int cc_buffer_mgr_init(struct cc_drvdata *drvdata);
42 int cc_buffer_mgr_fini(struct cc_drvdata *drvdata);
44 int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx,
45 unsigned int ivsize, unsigned int nbytes,
46 void *info, struct scatterlist *src,
47 struct scatterlist *dst, gfp_t flags);
49 void cc_unmap_cipher_request(struct device *dev, void *ctx, unsigned int ivsize,
50 struct scatterlist *src, struct scatterlist *dst);
52 int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req);
54 void cc_unmap_aead_request(struct device *dev, struct aead_request *req);
56 int cc_map_hash_request_final(struct cc_drvdata *drvdata, void *ctx,
57 struct scatterlist *src, unsigned int nbytes,
58 bool do_update, gfp_t flags);
60 int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx,
61 struct scatterlist *src, unsigned int nbytes,
62 unsigned int block_size, gfp_t flags);
64 void cc_unmap_hash_request(struct device *dev, void *ctx,
65 struct scatterlist *src, bool do_revert);
67 void cc_copy_sg_portion(struct device *dev, u8 *dest, struct scatterlist *sg,
68 u32 to_skip, u32 end, enum cc_sg_cpy_direct direct);
70 #endif /*__BUFFER_MGR_H__*/