| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ |
| |
| /* \file cc_buffer_mgr.h |
| * Buffer Manager |
| */ |
| |
| #ifndef __CC_BUFFER_MGR_H__ |
| #define __CC_BUFFER_MGR_H__ |
| |
| #include <crypto/algapi.h> |
| |
| #include "cc_driver.h" |
| |
| enum cc_req_dma_buf_type { |
| CC_DMA_BUF_NULL = 0, |
| CC_DMA_BUF_DLLI, |
| CC_DMA_BUF_MLLI |
| }; |
| |
| enum cc_sg_cpy_direct { |
| CC_SG_TO_BUF = 0, |
| CC_SG_FROM_BUF = 1 |
| }; |
| |
| struct cc_mlli { |
| cc_sram_addr_t sram_addr; |
| unsigned int mapped_nents; |
| unsigned int nents; //sg nents |
| unsigned int mlli_nents; //mlli nents might be different than the above |
| }; |
| |
| struct mlli_params { |
| struct dma_pool *curr_pool; |
| u8 *mlli_virt_addr; |
| dma_addr_t mlli_dma_addr; |
| u32 mlli_len; |
| }; |
| |
| int cc_buffer_mgr_init(struct cc_drvdata *drvdata); |
| |
| int cc_buffer_mgr_fini(struct cc_drvdata *drvdata); |
| |
| int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx, |
| unsigned int ivsize, unsigned int nbytes, |
| void *info, struct scatterlist *src, |
| struct scatterlist *dst, gfp_t flags); |
| |
| void cc_unmap_cipher_request(struct device *dev, void *ctx, unsigned int ivsize, |
| struct scatterlist *src, struct scatterlist *dst); |
| |
| int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req); |
| |
| void cc_unmap_aead_request(struct device *dev, struct aead_request *req); |
| |
| int cc_map_hash_request_final(struct cc_drvdata *drvdata, void *ctx, |
| struct scatterlist *src, unsigned int nbytes, |
| bool do_update, gfp_t flags); |
| |
| int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx, |
| struct scatterlist *src, unsigned int nbytes, |
| unsigned int block_size, gfp_t flags); |
| |
| void cc_unmap_hash_request(struct device *dev, void *ctx, |
| struct scatterlist *src, bool do_revert); |
| |
| void cc_copy_sg_portion(struct device *dev, u8 *dest, struct scatterlist *sg, |
| u32 to_skip, u32 end, enum cc_sg_cpy_direct direct); |
| |
| #endif /*__BUFFER_MGR_H__*/ |