This source file includes following definitions.
- crypto_sha256_neon_update
- crypto_sha256_neon_finup
- crypto_sha256_neon_final
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12 #include <crypto/internal/hash.h>
13 #include <crypto/internal/simd.h>
14 #include <linux/cryptohash.h>
15 #include <linux/types.h>
16 #include <linux/string.h>
17 #include <crypto/sha.h>
18 #include <crypto/sha256_base.h>
19 #include <asm/byteorder.h>
20 #include <asm/simd.h>
21 #include <asm/neon.h>
22
23 #include "sha256_glue.h"
24
25 asmlinkage void sha256_block_data_order_neon(u32 *digest, const void *data,
26 unsigned int num_blks);
27
28 static int crypto_sha256_neon_update(struct shash_desc *desc, const u8 *data,
29 unsigned int len)
30 {
31 struct sha256_state *sctx = shash_desc_ctx(desc);
32
33 if (!crypto_simd_usable() ||
34 (sctx->count % SHA256_BLOCK_SIZE) + len < SHA256_BLOCK_SIZE)
35 return crypto_sha256_arm_update(desc, data, len);
36
37 kernel_neon_begin();
38 sha256_base_do_update(desc, data, len,
39 (sha256_block_fn *)sha256_block_data_order_neon);
40 kernel_neon_end();
41
42 return 0;
43 }
44
45 static int crypto_sha256_neon_finup(struct shash_desc *desc, const u8 *data,
46 unsigned int len, u8 *out)
47 {
48 if (!crypto_simd_usable())
49 return crypto_sha256_arm_finup(desc, data, len, out);
50
51 kernel_neon_begin();
52 if (len)
53 sha256_base_do_update(desc, data, len,
54 (sha256_block_fn *)sha256_block_data_order_neon);
55 sha256_base_do_finalize(desc,
56 (sha256_block_fn *)sha256_block_data_order_neon);
57 kernel_neon_end();
58
59 return sha256_base_finish(desc, out);
60 }
61
62 static int crypto_sha256_neon_final(struct shash_desc *desc, u8 *out)
63 {
64 return crypto_sha256_neon_finup(desc, NULL, 0, out);
65 }
66
67 struct shash_alg sha256_neon_algs[] = { {
68 .digestsize = SHA256_DIGEST_SIZE,
69 .init = sha256_base_init,
70 .update = crypto_sha256_neon_update,
71 .final = crypto_sha256_neon_final,
72 .finup = crypto_sha256_neon_finup,
73 .descsize = sizeof(struct sha256_state),
74 .base = {
75 .cra_name = "sha256",
76 .cra_driver_name = "sha256-neon",
77 .cra_priority = 250,
78 .cra_blocksize = SHA256_BLOCK_SIZE,
79 .cra_module = THIS_MODULE,
80 }
81 }, {
82 .digestsize = SHA224_DIGEST_SIZE,
83 .init = sha224_base_init,
84 .update = crypto_sha256_neon_update,
85 .final = crypto_sha256_neon_final,
86 .finup = crypto_sha256_neon_finup,
87 .descsize = sizeof(struct sha256_state),
88 .base = {
89 .cra_name = "sha224",
90 .cra_driver_name = "sha224-neon",
91 .cra_priority = 250,
92 .cra_blocksize = SHA224_BLOCK_SIZE,
93 .cra_module = THIS_MODULE,
94 }
95 } };