1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun 3*4882a593Smuzhiyun /* Copyright (c) 2022 Rockchip Electronics Co. Ltd. */ 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #ifndef __RK_CRYPTO_UTILS_H__ 6*4882a593Smuzhiyun #define __RK_CRYPTO_UTILS_H__ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #include <linux/dma-mapping.h> 9*4882a593Smuzhiyun #include <linux/scatterlist.h> 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include "rk_crypto_core.h" 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun /* Default 256 x 4K = 1MByte */ 14*4882a593Smuzhiyun #define RK_DEFAULT_LLI_CNT 256 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun struct crypto_lli_desc { 17*4882a593Smuzhiyun u32 src_addr; 18*4882a593Smuzhiyun u32 src_len; 19*4882a593Smuzhiyun u32 dst_addr; 20*4882a593Smuzhiyun u32 dst_len; 21*4882a593Smuzhiyun u32 user_define; 22*4882a593Smuzhiyun u32 reserve; 23*4882a593Smuzhiyun u32 dma_ctrl; 24*4882a593Smuzhiyun u32 next_addr; 25*4882a593Smuzhiyun }; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun struct rk_hw_desc { 28*4882a593Smuzhiyun struct device *dev; 29*4882a593Smuzhiyun struct crypto_lli_desc *lli_aad; 30*4882a593Smuzhiyun struct crypto_lli_desc *lli_head; 31*4882a593Smuzhiyun struct crypto_lli_desc *lli_tail; 32*4882a593Smuzhiyun dma_addr_t lli_head_dma; 33*4882a593Smuzhiyun dma_addr_t lli_aad_dma; 34*4882a593Smuzhiyun u32 total; 35*4882a593Smuzhiyun }; 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun void rk_crypto_write_regs(struct rk_crypto_dev *rk_dev, u32 base_addr, const u8 *data, u32 bytes); 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun void rk_crypto_clear_regs(struct rk_crypto_dev *rk_dev, u32 base_addr, u32 words); 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun void rk_crypto_read_regs(struct rk_crypto_dev *rk_dev, u32 base_addr, u8 *data, u32 bytes); 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun bool rk_crypto_check_align(struct scatterlist *src_sg, size_t src_nents, 44*4882a593Smuzhiyun struct scatterlist *dst_sg, size_t dst_nents, 45*4882a593Smuzhiyun int align_mask); 46*4882a593Smuzhiyun 47*4882a593Smuzhiyun bool rk_crypto_check_dmafd(struct scatterlist *sgl, size_t nents); 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun u64 rk_crypto_hw_desc_maxlen(struct scatterlist *sg, u64 len, u32 *max_nents); 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun int rk_crypto_hw_desc_alloc(struct device *dev, struct rk_hw_desc *hw_desc); 52*4882a593Smuzhiyun 53*4882a593Smuzhiyun int rk_crypto_hw_desc_init(struct rk_hw_desc *hw_desc, 54*4882a593Smuzhiyun struct scatterlist *src_sg, 55*4882a593Smuzhiyun struct scatterlist *dst_sg, 56*4882a593Smuzhiyun u64 len); 57*4882a593Smuzhiyun 58*4882a593Smuzhiyun void rk_crypto_hw_desc_free(struct rk_hw_desc *hw_desc); 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun void rk_crypto_dump_hw_desc(struct rk_hw_desc *hw_desc); 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun #endif 63*4882a593Smuzhiyun 64