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1/* SPDX-License-Identifier: GPL-2.0 */2/* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */3 4/* \file cc_buffer_mgr.h5 * Buffer Manager6 */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_MLLI19};20 21enum cc_sg_cpy_direct {22 CC_SG_TO_BUF = 0,23 CC_SG_FROM_BUF = 124};25 26struct cc_mlli {27 u32 sram_addr;28 unsigned int mapped_nents;29 unsigned int nents; //sg nents30 unsigned int mlli_nents; //mlli nents might be different than the above31};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__*/71