89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
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/*
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* Copyright (C) 2012-2017 ARM Limited or its affiliates.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/* \file buffer_mgr.h
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* Buffer Manager
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*/
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#ifndef __SSI_BUFFER_MGR_H__
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#define __SSI_BUFFER_MGR_H__
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#include <crypto/algapi.h>
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#include "ssi_config.h"
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#include "ssi_driver.h"
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enum ssi_req_dma_buf_type {
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SSI_DMA_BUF_NULL = 0,
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SSI_DMA_BUF_DLLI,
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SSI_DMA_BUF_MLLI
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};
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enum ssi_sg_cpy_direct {
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SSI_SG_TO_BUF = 0,
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SSI_SG_FROM_BUF = 1
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};
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struct ssi_mlli {
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ssi_sram_addr_t sram_addr;
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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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u8 *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 ssi_buffer_mgr_init(struct ssi_drvdata *drvdata);
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int ssi_buffer_mgr_fini(struct ssi_drvdata *drvdata);
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int ssi_buffer_mgr_map_blkcipher_request(
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struct ssi_drvdata *drvdata,
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void *ctx,
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unsigned int ivsize,
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unsigned int nbytes,
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void *info,
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struct scatterlist *src,
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struct scatterlist *dst);
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void ssi_buffer_mgr_unmap_blkcipher_request(
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struct device *dev,
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void *ctx,
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unsigned int ivsize,
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struct scatterlist *src,
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struct scatterlist *dst);
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int ssi_buffer_mgr_map_aead_request(struct ssi_drvdata *drvdata, struct aead_request *req);
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void ssi_buffer_mgr_unmap_aead_request(struct device *dev, struct aead_request *req);
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int ssi_buffer_mgr_map_hash_request_final(struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, bool do_update);
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int ssi_buffer_mgr_map_hash_request_update(struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, unsigned int block_size);
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void ssi_buffer_mgr_unmap_hash_request(struct device *dev, void *ctx, struct scatterlist *src, bool do_revert);
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void ssi_buffer_mgr_copy_scatterlist_portion(u8 *dest, struct scatterlist *sg, u32 to_skip, u32 end, enum ssi_sg_cpy_direct direct);
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void ssi_buffer_mgr_zero_sgl(struct scatterlist *sgl, u32 data_len);
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#endif /*__BUFFER_MGR_H__*/
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