1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* Copyright (C) 2012-2019 ARM Limited (or its affiliates). */ 3*4882a593Smuzhiyun 4*4882a593Smuzhiyun /* \file cc_buffer_mgr.h 5*4882a593Smuzhiyun * Buffer Manager 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #ifndef __CC_BUFFER_MGR_H__ 9*4882a593Smuzhiyun #define __CC_BUFFER_MGR_H__ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <crypto/algapi.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include "cc_driver.h" 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun enum cc_req_dma_buf_type { 16*4882a593Smuzhiyun CC_DMA_BUF_NULL = 0, 17*4882a593Smuzhiyun CC_DMA_BUF_DLLI, 18*4882a593Smuzhiyun CC_DMA_BUF_MLLI 19*4882a593Smuzhiyun }; 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun enum cc_sg_cpy_direct { 22*4882a593Smuzhiyun CC_SG_TO_BUF = 0, 23*4882a593Smuzhiyun CC_SG_FROM_BUF = 1 24*4882a593Smuzhiyun }; 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun struct cc_mlli { 27*4882a593Smuzhiyun u32 sram_addr; 28*4882a593Smuzhiyun unsigned int mapped_nents; 29*4882a593Smuzhiyun unsigned int nents; //sg nents 30*4882a593Smuzhiyun unsigned int mlli_nents; //mlli nents might be different than the above 31*4882a593Smuzhiyun }; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun struct mlli_params { 34*4882a593Smuzhiyun struct dma_pool *curr_pool; 35*4882a593Smuzhiyun void *mlli_virt_addr; 36*4882a593Smuzhiyun dma_addr_t mlli_dma_addr; 37*4882a593Smuzhiyun u32 mlli_len; 38*4882a593Smuzhiyun }; 39*4882a593Smuzhiyun 40*4882a593Smuzhiyun int cc_buffer_mgr_init(struct cc_drvdata *drvdata); 41*4882a593Smuzhiyun 42*4882a593Smuzhiyun int cc_buffer_mgr_fini(struct cc_drvdata *drvdata); 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun int cc_map_cipher_request(struct cc_drvdata *drvdata, void *ctx, 45*4882a593Smuzhiyun unsigned int ivsize, unsigned int nbytes, 46*4882a593Smuzhiyun void *info, struct scatterlist *src, 47*4882a593Smuzhiyun struct scatterlist *dst, gfp_t flags); 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun void cc_unmap_cipher_request(struct device *dev, void *ctx, unsigned int ivsize, 50*4882a593Smuzhiyun struct scatterlist *src, struct scatterlist *dst); 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun int cc_map_aead_request(struct cc_drvdata *drvdata, struct aead_request *req); 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun void cc_unmap_aead_request(struct device *dev, struct aead_request *req); 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun int cc_map_hash_request_final(struct cc_drvdata *drvdata, void *ctx, 57*4882a593Smuzhiyun struct scatterlist *src, unsigned int nbytes, 58*4882a593Smuzhiyun bool do_update, gfp_t flags); 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun int cc_map_hash_request_update(struct cc_drvdata *drvdata, void *ctx, 61*4882a593Smuzhiyun struct scatterlist *src, unsigned int nbytes, 62*4882a593Smuzhiyun unsigned int block_size, gfp_t flags); 63*4882a593Smuzhiyun 64*4882a593Smuzhiyun void cc_unmap_hash_request(struct device *dev, void *ctx, 65*4882a593Smuzhiyun struct scatterlist *src, bool do_revert); 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun void cc_copy_sg_portion(struct device *dev, u8 *dest, struct scatterlist *sg, 68*4882a593Smuzhiyun u32 to_skip, u32 end, enum cc_sg_cpy_direct direct); 69*4882a593Smuzhiyun 70*4882a593Smuzhiyun #endif /*__BUFFER_MGR_H__*/ 71