drivers/crypto/starfive/jh7110-cryp.h

   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 #define STARFIVE_RSA_MAX_KEYSZ                  256
  34
  35 union starfive_aes_csr {
  36         u32 v;
  37         struct {
  38                 u32 cmode                       :1;
  39 #define STARFIVE_AES_KEYMODE_128                0x0
  40 #define STARFIVE_AES_KEYMODE_192                0x1
  41 #define STARFIVE_AES_KEYMODE_256                0x2
  42                 u32 keymode                     :2;
  43 #define STARFIVE_AES_BUSY                       BIT(3)
  44                 u32 busy                        :1;
  45                 u32 done                        :1;
  46 #define STARFIVE_AES_KEY_DONE                   BIT(5)
  47                 u32 krdy                        :1;
  48                 u32 aesrst                      :1;
  49                 u32 ie                          :1;
  50 #define STARFIVE_AES_CCM_START                  BIT(8)
  51                 u32 ccm_start                   :1;
  52 #define STARFIVE_AES_MODE_ECB                   0x0
  53 #define STARFIVE_AES_MODE_CBC                   0x1
  54 #define STARFIVE_AES_MODE_CTR                   0x4
  55 #define STARFIVE_AES_MODE_CCM                   0x5
  56 #define STARFIVE_AES_MODE_GCM                   0x6
  57                 u32 mode                        :3;
  58 #define STARFIVE_AES_GCM_START                  BIT(12)
  59                 u32 gcm_start                   :1;
  60 #define STARFIVE_AES_GCM_DONE                   BIT(13)
  61                 u32 gcm_done                    :1;
  62                 u32 delay_aes                   :1;
  63                 u32 vaes_start                  :1;
  64                 u32 rsvd_0                      :8;
  65 #define STARFIVE_AES_MODE_XFB_1                 0x0
  66 #define STARFIVE_AES_MODE_XFB_128               0x5
  67                 u32 stmode                      :3;
  68                 u32 rsvd_1                      :5;
  69         };
  70 };
  71
  72 union starfive_hash_csr {
  73         u32 v;
  74         struct {
  75                 u32 start                       :1;
  76                 u32 reset                       :1;
  77                 u32 ie                          :1;
  78                 u32 firstb                      :1;
  79 #define STARFIVE_HASH_SM3                       0x0
  80 #define STARFIVE_HASH_SHA224                    0x3
  81 #define STARFIVE_HASH_SHA256                    0x4
  82 #define STARFIVE_HASH_SHA384                    0x5
  83 #define STARFIVE_HASH_SHA512                    0x6
  84 #define STARFIVE_HASH_MODE_MASK                 0x7
  85                 u32 mode                        :3;
  86                 u32 rsvd_1                      :1;
  87                 u32 final                       :1;
  88                 u32 rsvd_2                      :2;
  89 #define STARFIVE_HASH_HMAC_FLAGS                0x800
  90                 u32 hmac                        :1;
  91                 u32 rsvd_3                      :1;
  92 #define STARFIVE_HASH_KEY_DONE                  BIT(13)
  93                 u32 key_done                    :1;
  94                 u32 key_flag                    :1;
  95 #define STARFIVE_HASH_HMAC_DONE                 BIT(15)
  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 union starfive_pka_casr {
 129         u32 v;
 130         struct {
 131 #define STARFIVE_PKA_DONE                       BIT(0)
 132                 u32 done                        :1;
 133                 u32 rsvd_0                      :31;
 134         };
 135 };
 136
 137 struct starfive_rsa_key {
 138         u8      *n;
 139         u8      *e;
 140         u8      *d;
 141         int     e_bitlen;
 142         int     d_bitlen;
 143         int     bitlen;
 144         size_t  key_sz;
 145 };
 146
 147 union starfive_alg_cr {
 148         u32 v;
 149         struct {
 150                 u32 start                       :1;
 151                 u32 aes_dma_en                  :1;
 152                 u32 rsvd_0                      :1;
 153                 u32 hash_dma_en                 :1;
 154                 u32 alg_done                    :1;
 155                 u32 rsvd_1                      :3;
 156                 u32 clear                       :1;
 157                 u32 rsvd_2                      :23;
 158         };
 159 };
 160
 161 struct starfive_cryp_ctx {
 162         struct starfive_cryp_dev                *cryp;
 163         struct starfive_cryp_request_ctx        *rctx;
 164
 165         unsigned int                            hash_mode;
 166         u8                                      key[MAX_KEY_SIZE];
 167         int                                     keylen;
 168         bool                                    is_hmac;
 169         struct starfive_rsa_key                 rsa_key;
 170         struct crypto_akcipher                  *akcipher_fbk;
 171         struct crypto_ahash                     *ahash_fbk;
 172         struct crypto_aead                      *aead_fbk;
 173         struct crypto_skcipher                  *skcipher_fbk;
 174 };
 175
 176 struct starfive_cryp_dev {
 177         struct list_head                        list;
 178         struct device                           *dev;
 179         struct clk                              *hclk;
 180         struct clk                              *ahb;
 181         struct reset_control                    *rst;
 182
 183         void __iomem                            *base;
 184         phys_addr_t                             phys_base;
 185
 186         u32                                     dma_maxburst;
 187         struct dma_chan                         *tx;
 188         struct dma_chan                         *rx;
 189         struct dma_slave_config                 cfg_in;
 190         struct dma_slave_config                 cfg_out;
 191         struct crypto_engine                    *engine;
 192         struct completion                       dma_done;
 193         size_t                                  assoclen;
 194         size_t                                  total_in;
 195         size_t                                  total_out;
 196         u32                                     tag_in[4];
 197         u32                                     tag_out[4];
 198         unsigned int                            authsize;
 199         unsigned long                           flags;
 200         int                                     err;
 201         bool                                    side_chan;
 202         union starfive_alg_cr                   alg_cr;
 203         union {
 204                 struct ahash_request            *hreq;
 205                 struct aead_request             *areq;
 206                 struct skcipher_request         *sreq;
 207         } req;
 208 };
 209
 210 struct starfive_cryp_request_ctx {
 211         union {
 212                 union starfive_hash_csr         hash;
 213                 union starfive_pka_cacr         pka;
 214                 union starfive_aes_csr          aes;
 215         } csr;
 216
 217         struct scatterlist                      *in_sg;
 218         struct scatterlist                      *out_sg;
 219         struct ahash_request                    ahash_fbk_req;
 220         size_t                                  total;
 221         unsigned int                            blksize;
 222         unsigned int                            digsize;
 223         unsigned long                           in_sg_len;
 224         unsigned char                           *adata;
 225         u8 rsa_data[STARFIVE_RSA_MAX_KEYSZ] __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