1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ 3 4 /* \file cc_cipher.h 5 * ARM CryptoCell Cipher Crypto API 6 */ 7 8 #ifndef __CC_CIPHER_H__ 9 #define __CC_CIPHER_H__ 10 11 #include <linux/kernel.h> 12 #include <crypto/algapi.h> 13 #include "cc_driver.h" 14 #include "cc_buffer_mgr.h" 15 16 /* Crypto cipher flags */ 17 #define CC_CRYPTO_CIPHER_KEY_KFDE0 BIT(0) 18 #define CC_CRYPTO_CIPHER_KEY_KFDE1 BIT(1) 19 #define CC_CRYPTO_CIPHER_KEY_KFDE2 BIT(2) 20 #define CC_CRYPTO_CIPHER_KEY_KFDE3 BIT(3) 21 #define CC_CRYPTO_CIPHER_DU_SIZE_512B BIT(4) 22 23 #define CC_CRYPTO_CIPHER_KEY_KFDE_MASK (CC_CRYPTO_CIPHER_KEY_KFDE0 | \ 24 CC_CRYPTO_CIPHER_KEY_KFDE1 | \ 25 CC_CRYPTO_CIPHER_KEY_KFDE2 | \ 26 CC_CRYPTO_CIPHER_KEY_KFDE3) 27 28 struct cipher_req_ctx { 29 struct async_gen_req_ctx gen_ctx; 30 enum cc_req_dma_buf_type dma_buf_type; 31 u32 in_nents; 32 u32 in_mlli_nents; 33 u32 out_nents; 34 u32 out_mlli_nents; 35 u8 *backup_info; /*store iv for generated IV flow*/ 36 u8 *iv; 37 bool is_giv; 38 struct mlli_params mlli_params; 39 }; 40 41 int cc_cipher_alloc(struct cc_drvdata *drvdata); 42 43 int cc_cipher_free(struct cc_drvdata *drvdata); 44 45 struct arm_hw_key_info { 46 int hw_key1; 47 int hw_key2; 48 }; 49 50 /* 51 * This is a stub function that will replaced when we 52 * implement secure keys 53 */ 54 static inline bool cc_is_hw_key(struct crypto_tfm *tfm) 55 { 56 return false; 57 } 58 59 #endif /*__CC_CIPHER_H__*/ 60