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_CFB 0x2 54 #define STARFIVE_AES_MODE_OFB 0x3 55 #define STARFIVE_AES_MODE_CTR 0x4 56 #define STARFIVE_AES_MODE_CCM 0x5 57 #define STARFIVE_AES_MODE_GCM 0x6 58 u32 mode :3; 59 #define STARFIVE_AES_GCM_START BIT(12) 60 u32 gcm_start :1; 61 #define STARFIVE_AES_GCM_DONE BIT(13) 62 u32 gcm_done :1; 63 u32 delay_aes :1; 64 u32 vaes_start :1; 65 u32 rsvd_0 :8; 66 #define STARFIVE_AES_MODE_XFB_1 0x0 67 #define STARFIVE_AES_MODE_XFB_128 0x5 68 u32 stmode :3; 69 u32 rsvd_1 :5; 70 }; 71 }; 72 73 union starfive_hash_csr { 74 u32 v; 75 struct { 76 u32 start :1; 77 u32 reset :1; 78 u32 ie :1; 79 u32 firstb :1; 80 #define STARFIVE_HASH_SM3 0x0 81 #define STARFIVE_HASH_SHA224 0x3 82 #define STARFIVE_HASH_SHA256 0x4 83 #define STARFIVE_HASH_SHA384 0x5 84 #define STARFIVE_HASH_SHA512 0x6 85 #define STARFIVE_HASH_MODE_MASK 0x7 86 u32 mode :3; 87 u32 rsvd_1 :1; 88 u32 final :1; 89 u32 rsvd_2 :2; 90 #define STARFIVE_HASH_HMAC_FLAGS 0x800 91 u32 hmac :1; 92 u32 rsvd_3 :1; 93 #define STARFIVE_HASH_KEY_DONE BIT(13) 94 u32 key_done :1; 95 u32 key_flag :1; 96 u32 hmac_done :1; 97 #define STARFIVE_HASH_BUSY BIT(16) 98 u32 busy :1; 99 u32 hashdone :1; 100 u32 rsvd_4 :14; 101 }; 102 }; 103 104 union starfive_pka_cacr { 105 u32 v; 106 struct { 107 u32 start :1; 108 u32 reset :1; 109 u32 ie :1; 110 u32 rsvd_0 :1; 111 u32 fifo_mode :1; 112 u32 not_r2 :1; 113 u32 ecc_sub :1; 114 u32 pre_expf :1; 115 u32 cmd :4; 116 u32 rsvd_1 :1; 117 u32 ctrl_dummy :1; 118 u32 ctrl_false :1; 119 u32 cln_done :1; 120 u32 opsize :6; 121 u32 rsvd_2 :2; 122 u32 exposize :6; 123 u32 rsvd_3 :1; 124 u32 bigendian :1; 125 }; 126 }; 127 128 struct starfive_rsa_key { 129 u8 *n; 130 u8 *e; 131 u8 *d; 132 int e_bitlen; 133 int d_bitlen; 134 int bitlen; 135 size_t key_sz; 136 }; 137 138 union starfive_alg_cr { 139 u32 v; 140 struct { 141 u32 start :1; 142 u32 aes_dma_en :1; 143 u32 rsvd_0 :1; 144 u32 hash_dma_en :1; 145 u32 alg_done :1; 146 u32 rsvd_1 :3; 147 u32 clear :1; 148 u32 rsvd_2 :23; 149 }; 150 }; 151 152 struct starfive_cryp_ctx { 153 struct starfive_cryp_dev *cryp; 154 struct starfive_cryp_request_ctx *rctx; 155 156 unsigned int hash_mode; 157 u8 key[MAX_KEY_SIZE]; 158 int keylen; 159 bool is_hmac; 160 struct starfive_rsa_key rsa_key; 161 struct crypto_akcipher *akcipher_fbk; 162 struct crypto_ahash *ahash_fbk; 163 struct crypto_aead *aead_fbk; 164 }; 165 166 struct starfive_cryp_dev { 167 struct list_head list; 168 struct device *dev; 169 struct clk *hclk; 170 struct clk *ahb; 171 struct reset_control *rst; 172 173 void __iomem *base; 174 phys_addr_t phys_base; 175 176 u32 dma_maxburst; 177 struct dma_chan *tx; 178 struct dma_chan *rx; 179 struct dma_slave_config cfg_in; 180 struct dma_slave_config cfg_out; 181 struct scatter_walk in_walk; 182 struct scatter_walk out_walk; 183 struct crypto_engine *engine; 184 struct tasklet_struct aes_done; 185 struct tasklet_struct hash_done; 186 struct completion pka_done; 187 size_t assoclen; 188 size_t total_in; 189 size_t total_out; 190 u32 tag_in[4]; 191 u32 tag_out[4]; 192 unsigned int authsize; 193 unsigned long flags; 194 int err; 195 bool side_chan; 196 union starfive_alg_cr alg_cr; 197 union { 198 struct ahash_request *hreq; 199 struct aead_request *areq; 200 struct skcipher_request *sreq; 201 } req; 202 }; 203 204 struct starfive_cryp_request_ctx { 205 union { 206 union starfive_hash_csr hash; 207 union starfive_pka_cacr pka; 208 union starfive_aes_csr aes; 209 } csr; 210 211 struct scatterlist *in_sg; 212 struct scatterlist *out_sg; 213 struct ahash_request ahash_fbk_req; 214 size_t total; 215 size_t nents; 216 unsigned int blksize; 217 unsigned int digsize; 218 unsigned long in_sg_len; 219 unsigned char *adata; 220 u8 rsa_data[] __aligned(sizeof(u32)); 221 }; 222 223 struct starfive_cryp_dev *starfive_cryp_find_dev(struct starfive_cryp_ctx *ctx); 224 225 int starfive_hash_register_algs(void); 226 void starfive_hash_unregister_algs(void); 227 228 int starfive_rsa_register_algs(void); 229 void starfive_rsa_unregister_algs(void); 230 231 int starfive_aes_register_algs(void); 232 void starfive_aes_unregister_algs(void); 233 234 void starfive_hash_done_task(unsigned long param); 235 void starfive_aes_done_task(unsigned long param); 236 #endif 237