1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __STARFIVE_STR_H__ 3 #define __STARFIVE_STR_H__ 4 5 #include <crypto/aes.h> 6 #include <crypto/hash.h> 7 #include <crypto/scatterwalk.h> 8 #include <crypto/sha2.h> 9 #include <crypto/sm3.h> 10 #include <linux/delay.h> 11 #include <linux/dma-mapping.h> 12 #include <linux/dmaengine.h> 13 #include <linux/interrupt.h> 14 15 #define STARFIVE_ALG_CR_OFFSET 0x0 16 #define STARFIVE_ALG_FIFO_OFFSET 0x4 17 #define STARFIVE_IE_MASK_OFFSET 0x8 18 #define STARFIVE_IE_FLAG_OFFSET 0xc 19 #define STARFIVE_DMA_IN_LEN_OFFSET 0x10 20 #define STARFIVE_DMA_OUT_LEN_OFFSET 0x14 21 22 #define STARFIVE_IE_MASK_AES_DONE 0x1 23 #define STARFIVE_IE_MASK_HASH_DONE 0x4 24 #define STARFIVE_IE_MASK_PKA_DONE 0x8 25 #define STARFIVE_IE_FLAG_AES_DONE 0x1 26 #define STARFIVE_IE_FLAG_HASH_DONE 0x4 27 #define STARFIVE_IE_FLAG_PKA_DONE 0x8 28 29 #define STARFIVE_MSG_BUFFER_SIZE SZ_16K 30 #define MAX_KEY_SIZE SHA512_BLOCK_SIZE 31 #define STARFIVE_AES_IV_LEN AES_BLOCK_SIZE 32 #define STARFIVE_AES_CTR_LEN AES_BLOCK_SIZE 33 34 union starfive_aes_csr { 35 u32 v; 36 struct { 37 u32 cmode :1; 38 #define STARFIVE_AES_KEYMODE_128 0x0 39 #define STARFIVE_AES_KEYMODE_192 0x1 40 #define STARFIVE_AES_KEYMODE_256 0x2 41 u32 keymode :2; 42 #define STARFIVE_AES_BUSY BIT(3) 43 u32 busy :1; 44 u32 done :1; 45 #define STARFIVE_AES_KEY_DONE BIT(5) 46 u32 krdy :1; 47 u32 aesrst :1; 48 u32 ie :1; 49 #define STARFIVE_AES_CCM_START BIT(8) 50 u32 ccm_start :1; 51 #define STARFIVE_AES_MODE_ECB 0x0 52 #define STARFIVE_AES_MODE_CBC 0x1 53 #define STARFIVE_AES_MODE_CTR 0x4 54 #define STARFIVE_AES_MODE_CCM 0x5 55 #define STARFIVE_AES_MODE_GCM 0x6 56 u32 mode :3; 57 #define STARFIVE_AES_GCM_START BIT(12) 58 u32 gcm_start :1; 59 #define STARFIVE_AES_GCM_DONE BIT(13) 60 u32 gcm_done :1; 61 u32 delay_aes :1; 62 u32 vaes_start :1; 63 u32 rsvd_0 :8; 64 #define STARFIVE_AES_MODE_XFB_1 0x0 65 #define STARFIVE_AES_MODE_XFB_128 0x5 66 u32 stmode :3; 67 u32 rsvd_1 :5; 68 }; 69 }; 70 71 union starfive_hash_csr { 72 u32 v; 73 struct { 74 u32 start :1; 75 u32 reset :1; 76 u32 ie :1; 77 u32 firstb :1; 78 #define STARFIVE_HASH_SM3 0x0 79 #define STARFIVE_HASH_SHA224 0x3 80 #define STARFIVE_HASH_SHA256 0x4 81 #define STARFIVE_HASH_SHA384 0x5 82 #define STARFIVE_HASH_SHA512 0x6 83 #define STARFIVE_HASH_MODE_MASK 0x7 84 u32 mode :3; 85 u32 rsvd_1 :1; 86 u32 final :1; 87 u32 rsvd_2 :2; 88 #define STARFIVE_HASH_HMAC_FLAGS 0x800 89 u32 hmac :1; 90 u32 rsvd_3 :1; 91 #define STARFIVE_HASH_KEY_DONE BIT(13) 92 u32 key_done :1; 93 u32 key_flag :1; 94 #define STARFIVE_HASH_HMAC_DONE BIT(15) 95 u32 hmac_done :1; 96 #define STARFIVE_HASH_BUSY BIT(16) 97 u32 busy :1; 98 u32 hashdone :1; 99 u32 rsvd_4 :14; 100 }; 101 }; 102 103 union starfive_pka_cacr { 104 u32 v; 105 struct { 106 u32 start :1; 107 u32 reset :1; 108 u32 ie :1; 109 u32 rsvd_0 :1; 110 u32 fifo_mode :1; 111 u32 not_r2 :1; 112 u32 ecc_sub :1; 113 u32 pre_expf :1; 114 u32 cmd :4; 115 u32 rsvd_1 :1; 116 u32 ctrl_dummy :1; 117 u32 ctrl_false :1; 118 u32 cln_done :1; 119 u32 opsize :6; 120 u32 rsvd_2 :2; 121 u32 exposize :6; 122 u32 rsvd_3 :1; 123 u32 bigendian :1; 124 }; 125 }; 126 127 union starfive_pka_casr { 128 u32 v; 129 struct { 130 #define STARFIVE_PKA_DONE BIT(0) 131 u32 done :1; 132 u32 rsvd_0 :31; 133 }; 134 }; 135 136 struct starfive_rsa_key { 137 u8 *n; 138 u8 *e; 139 u8 *d; 140 int e_bitlen; 141 int d_bitlen; 142 int bitlen; 143 size_t key_sz; 144 }; 145 146 union starfive_alg_cr { 147 u32 v; 148 struct { 149 u32 start :1; 150 u32 aes_dma_en :1; 151 u32 rsvd_0 :1; 152 u32 hash_dma_en :1; 153 u32 alg_done :1; 154 u32 rsvd_1 :3; 155 u32 clear :1; 156 u32 rsvd_2 :23; 157 }; 158 }; 159 160 struct starfive_cryp_ctx { 161 struct starfive_cryp_dev *cryp; 162 struct starfive_cryp_request_ctx *rctx; 163 164 unsigned int hash_mode; 165 u8 key[MAX_KEY_SIZE]; 166 int keylen; 167 bool is_hmac; 168 struct starfive_rsa_key rsa_key; 169 struct crypto_akcipher *akcipher_fbk; 170 struct crypto_ahash *ahash_fbk; 171 struct crypto_aead *aead_fbk; 172 struct crypto_skcipher *skcipher_fbk; 173 }; 174 175 struct starfive_cryp_dev { 176 struct list_head list; 177 struct device *dev; 178 struct clk *hclk; 179 struct clk *ahb; 180 struct reset_control *rst; 181 182 void __iomem *base; 183 phys_addr_t phys_base; 184 185 u32 dma_maxburst; 186 struct dma_chan *tx; 187 struct dma_chan *rx; 188 struct dma_slave_config cfg_in; 189 struct dma_slave_config cfg_out; 190 struct crypto_engine *engine; 191 struct completion dma_done; 192 size_t assoclen; 193 size_t total_in; 194 size_t total_out; 195 u32 tag_in[4]; 196 u32 tag_out[4]; 197 unsigned int authsize; 198 unsigned long flags; 199 int err; 200 bool side_chan; 201 union starfive_alg_cr alg_cr; 202 union { 203 struct ahash_request *hreq; 204 struct aead_request *areq; 205 struct skcipher_request *sreq; 206 } req; 207 }; 208 209 struct starfive_cryp_request_ctx { 210 union { 211 union starfive_hash_csr hash; 212 union starfive_pka_cacr pka; 213 union starfive_aes_csr aes; 214 } csr; 215 216 struct scatterlist *in_sg; 217 struct scatterlist *out_sg; 218 struct ahash_request ahash_fbk_req; 219 size_t total; 220 size_t nents; 221 unsigned int blksize; 222 unsigned int digsize; 223 unsigned long in_sg_len; 224 unsigned char *adata; 225 u8 rsa_data[] __aligned(sizeof(u32)); 226 }; 227 228 struct starfive_cryp_dev *starfive_cryp_find_dev(struct starfive_cryp_ctx *ctx); 229 230 int starfive_hash_register_algs(void); 231 void starfive_hash_unregister_algs(void); 232 233 int starfive_rsa_register_algs(void); 234 void starfive_rsa_unregister_algs(void); 235 236 int starfive_aes_register_algs(void); 237 void starfive_aes_unregister_algs(void); 238 #endif 239