| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* Copyright (C) 2012-2018 ARM Limited or its affiliates. */ |
| |
| /* \file cc_cipher.h |
| * ARM CryptoCell Cipher Crypto API |
| */ |
| |
| #ifndef __CC_CIPHER_H__ |
| #define __CC_CIPHER_H__ |
| |
| #include <linux/kernel.h> |
| #include <crypto/algapi.h> |
| #include "cc_driver.h" |
| #include "cc_buffer_mgr.h" |
| |
| /* Crypto cipher flags */ |
| #define CC_CRYPTO_CIPHER_KEY_KFDE0 BIT(0) |
| #define CC_CRYPTO_CIPHER_KEY_KFDE1 BIT(1) |
| #define CC_CRYPTO_CIPHER_KEY_KFDE2 BIT(2) |
| #define CC_CRYPTO_CIPHER_KEY_KFDE3 BIT(3) |
| #define CC_CRYPTO_CIPHER_DU_SIZE_512B BIT(4) |
| |
| #define CC_CRYPTO_CIPHER_KEY_KFDE_MASK (CC_CRYPTO_CIPHER_KEY_KFDE0 | \ |
| CC_CRYPTO_CIPHER_KEY_KFDE1 | \ |
| CC_CRYPTO_CIPHER_KEY_KFDE2 | \ |
| CC_CRYPTO_CIPHER_KEY_KFDE3) |
| |
| struct blkcipher_req_ctx { |
| struct async_gen_req_ctx gen_ctx; |
| enum cc_req_dma_buf_type dma_buf_type; |
| u32 in_nents; |
| u32 in_mlli_nents; |
| u32 out_nents; |
| u32 out_mlli_nents; |
| u8 *backup_info; /*store iv for generated IV flow*/ |
| u8 *iv; |
| bool is_giv; |
| struct mlli_params mlli_params; |
| }; |
| |
| int cc_cipher_alloc(struct cc_drvdata *drvdata); |
| |
| int cc_cipher_free(struct cc_drvdata *drvdata); |
| |
| #ifndef CRYPTO_ALG_BULK_MASK |
| |
| #define CRYPTO_ALG_BULK_DU_512 0x00002000 |
| #define CRYPTO_ALG_BULK_DU_4096 0x00004000 |
| #define CRYPTO_ALG_BULK_MASK (CRYPTO_ALG_BULK_DU_512 |\ |
| CRYPTO_ALG_BULK_DU_4096) |
| #endif /* CRYPTO_ALG_BULK_MASK */ |
| |
| #ifdef CRYPTO_TFM_REQ_HW_KEY |
| |
| static inline bool cc_is_hw_key(struct crypto_tfm *tfm) |
| { |
| return (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_HW_KEY); |
| } |
| |
| #else |
| |
| struct arm_hw_key_info { |
| int hw_key1; |
| int hw_key2; |
| }; |
| |
| static inline bool cc_is_hw_key(struct crypto_tfm *tfm) |
| { |
| return false; |
| } |
| |
| #endif /* CRYPTO_TFM_REQ_HW_KEY */ |
| |
| #endif /*__CC_CIPHER_H__*/ |