1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */
 3
 4/* \file cc_buffer_mgr.h
 5 * Buffer Manager
 6 */
 7
 8#ifndef __CC_BUFFER_MGR_H__
 9#define __CC_BUFFER_MGR_H__
10
11#include <crypto/algapi.h>
12
13#include "cc_driver.h"
14
15enum cc_req_dma_buf_type {
16	CC_DMA_BUF_NULL = 0,
17	CC_DMA_BUF_DLLI,
18	CC_DMA_BUF_MLLI
19};
20
21enum cc_sg_cpy_direct {
22	CC_SG_TO_BUF = 0,
23	CC_SG_FROM_BUF = 1
24};
25
26struct cc_mlli {
27	u32 sram_addr;
28	unsigned int mapped_nents;
29	unsigned int nents; //sg nents
30	unsigned int mlli_nents; //mlli nents might be different than the above
31};
32
33struct mlli_params {
34	struct dma_pool *curr_pool;
35	void *mlli_virt_addr;
36	dma_addr_t mlli_dma_addr;
37	u32 mlli_len;
38};
39
40int cc_buffer_mgr_init(struct cc_drvdata *drvdata);
41
42int cc_buffer_mgr_fini(struct cc_drvdata *drvdata);
43
44int 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);
48
49void cc_unmap_cipher_request(struct device *dev, void *ctx, unsigned int ivsize,
50			     struct scatterlist *src, struct scatterlist *dst);
51
52int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req);
53
54void cc_unmap_aead_request(struct device *dev, struct aead_request *req);
55
56int 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);
59
60int 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);
63
64void cc_unmap_hash_request(struct device *dev, void *ctx,
65			   struct scatterlist *src, bool do_revert);
66
67void cc_copy_sg_portion(struct device *dev, u8 *dest, struct scatterlist *sg,
68			u32 to_skip, u32 end, enum cc_sg_cpy_direct direct);
 
 
69
70#endif /*__BUFFER_MGR_H__*/

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */
 3
 4/* \file cc_buffer_mgr.h
 5 * Buffer Manager
 6 */
 7
 8#ifndef __CC_BUFFER_MGR_H__
 9#define __CC_BUFFER_MGR_H__
10
11#include <crypto/algapi.h>
12
13#include "cc_driver.h"
14
15enum cc_req_dma_buf_type {
16	CC_DMA_BUF_NULL = 0,
17	CC_DMA_BUF_DLLI,
18	CC_DMA_BUF_MLLI
19};
20
21enum cc_sg_cpy_direct {
22	CC_SG_TO_BUF = 0,
23	CC_SG_FROM_BUF = 1
24};
25
26struct cc_mlli {
27	cc_sram_addr_t sram_addr;
 
28	unsigned int nents; //sg nents
29	unsigned int mlli_nents; //mlli nents might be different than the above
30};
31
32struct mlli_params {
33	struct dma_pool *curr_pool;
34	u8 *mlli_virt_addr;
35	dma_addr_t mlli_dma_addr;
36	u32 mlli_len;
37};
38
39int cc_buffer_mgr_init(struct cc_drvdata *drvdata);
40
41int cc_buffer_mgr_fini(struct cc_drvdata *drvdata);
42
43int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx,
44			  unsigned int ivsize, unsigned int nbytes,
45			  void *info, struct scatterlist *src,
46			  struct scatterlist *dst, gfp_t flags);
47
48void cc_unmap_cipher_request(struct device *dev, void *ctx, unsigned int ivsize,
49			     struct scatterlist *src, struct scatterlist *dst);
50
51int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req);
52
53void cc_unmap_aead_request(struct device *dev, struct aead_request *req);
54
55int cc_map_hash_request_final(struct cc_drvdata *drvdata, void *ctx,
56			      struct scatterlist *src, unsigned int nbytes,
57			      bool do_update, gfp_t flags);
58
59int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx,
60			       struct scatterlist *src, unsigned int nbytes,
61			       unsigned int block_size, gfp_t flags);
62
63void cc_unmap_hash_request(struct device *dev, void *ctx,
64			   struct scatterlist *src, bool do_revert);
65
66void cc_copy_sg_portion(struct device *dev, u8 *dest, struct scatterlist *sg,
67			u32 to_skip, u32 end, enum cc_sg_cpy_direct direct);
68
69void cc_zero_sgl(struct scatterlist *sgl, u32 data_len);
70
71#endif /*__BUFFER_MGR_H__*/