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Diffstat (limited to 'arch/arm64/crypto/sha1-ce-glue.c')
-rw-r--r--arch/arm64/crypto/sha1-ce-glue.c148
1 files changed, 0 insertions, 148 deletions
diff --git a/arch/arm64/crypto/sha1-ce-glue.c b/arch/arm64/crypto/sha1-ce-glue.c
deleted file mode 100644
index cbd14f208f83..000000000000
--- a/arch/arm64/crypto/sha1-ce-glue.c
+++ /dev/null
@@ -1,148 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * sha1-ce-glue.c - SHA-1 secure hash using ARMv8 Crypto Extensions
- *
- * Copyright (C) 2014 - 2017 Linaro Ltd <ard.biesheuvel@linaro.org>
- */
-
-#include <asm/neon.h>
-#include <asm/simd.h>
-#include <linux/unaligned.h>
-#include <crypto/internal/hash.h>
-#include <crypto/internal/simd.h>
-#include <crypto/sha1.h>
-#include <crypto/sha1_base.h>
-#include <linux/cpufeature.h>
-#include <linux/crypto.h>
-#include <linux/module.h>
-
-MODULE_DESCRIPTION("SHA1 secure hash using ARMv8 Crypto Extensions");
-MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS_CRYPTO("sha1");
-
-struct sha1_ce_state {
- struct sha1_state sst;
- u32 finalize;
-};
-
-extern const u32 sha1_ce_offsetof_count;
-extern const u32 sha1_ce_offsetof_finalize;
-
-asmlinkage int __sha1_ce_transform(struct sha1_ce_state *sst, u8 const *src,
- int blocks);
-
-static void sha1_ce_transform(struct sha1_state *sst, u8 const *src,
- int blocks)
-{
- while (blocks) {
- int rem;
-
- kernel_neon_begin();
- rem = __sha1_ce_transform(container_of(sst,
- struct sha1_ce_state,
- sst), src, blocks);
- kernel_neon_end();
- src += (blocks - rem) * SHA1_BLOCK_SIZE;
- blocks = rem;
- }
-}
-
-const u32 sha1_ce_offsetof_count = offsetof(struct sha1_ce_state, sst.count);
-const u32 sha1_ce_offsetof_finalize = offsetof(struct sha1_ce_state, finalize);
-
-static int sha1_ce_update(struct shash_desc *desc, const u8 *data,
- unsigned int len)
-{
- struct sha1_ce_state *sctx = shash_desc_ctx(desc);
-
- if (!crypto_simd_usable())
- return crypto_sha1_update(desc, data, len);
-
- sctx->finalize = 0;
- sha1_base_do_update(desc, data, len, sha1_ce_transform);
-
- return 0;
-}
-
-static int sha1_ce_finup(struct shash_desc *desc, const u8 *data,
- unsigned int len, u8 *out)
-{
- struct sha1_ce_state *sctx = shash_desc_ctx(desc);
- bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE) && len;
-
- if (!crypto_simd_usable())
- return crypto_sha1_finup(desc, data, len, out);
-
- /*
- * Allow the asm code to perform the finalization if there is no
- * partial data and the input is a round multiple of the block size.
- */
- sctx->finalize = finalize;
-
- sha1_base_do_update(desc, data, len, sha1_ce_transform);
- if (!finalize)
- sha1_base_do_finalize(desc, sha1_ce_transform);
- return sha1_base_finish(desc, out);
-}
-
-static int sha1_ce_final(struct shash_desc *desc, u8 *out)
-{
- struct sha1_ce_state *sctx = shash_desc_ctx(desc);
-
- if (!crypto_simd_usable())
- return crypto_sha1_finup(desc, NULL, 0, out);
-
- sctx->finalize = 0;
- sha1_base_do_finalize(desc, sha1_ce_transform);
- return sha1_base_finish(desc, out);
-}
-
-static int sha1_ce_export(struct shash_desc *desc, void *out)
-{
- struct sha1_ce_state *sctx = shash_desc_ctx(desc);
-
- memcpy(out, &sctx->sst, sizeof(struct sha1_state));
- return 0;
-}
-
-static int sha1_ce_import(struct shash_desc *desc, const void *in)
-{
- struct sha1_ce_state *sctx = shash_desc_ctx(desc);
-
- memcpy(&sctx->sst, in, sizeof(struct sha1_state));
- sctx->finalize = 0;
- return 0;
-}
-
-static struct shash_alg alg = {
- .init = sha1_base_init,
- .update = sha1_ce_update,
- .final = sha1_ce_final,
- .finup = sha1_ce_finup,
- .import = sha1_ce_import,
- .export = sha1_ce_export,
- .descsize = sizeof(struct sha1_ce_state),
- .statesize = sizeof(struct sha1_state),
- .digestsize = SHA1_DIGEST_SIZE,
- .base = {
- .cra_name = "sha1",
- .cra_driver_name = "sha1-ce",
- .cra_priority = 200,
- .cra_blocksize = SHA1_BLOCK_SIZE,
- .cra_module = THIS_MODULE,
- }
-};
-
-static int __init sha1_ce_mod_init(void)
-{
- return crypto_register_shash(&alg);
-}
-
-static void __exit sha1_ce_mod_fini(void)
-{
- crypto_unregister_shash(&alg);
-}
-
-module_cpu_feature_match(SHA1, sha1_ce_mod_init);
-module_exit(sha1_ce_mod_fini);