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