diff options
Diffstat (limited to 'arch/x86/crypto/blake2s-glue.c')
| -rw-r--r-- | arch/x86/crypto/blake2s-glue.c | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/arch/x86/crypto/blake2s-glue.c b/arch/x86/crypto/blake2s-glue.c deleted file mode 100644 index a40365ab301e..000000000000 --- a/arch/x86/crypto/blake2s-glue.c +++ /dev/null @@ -1,134 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 OR MIT -/* - * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. - */ - -#include <crypto/internal/blake2s.h> -#include <crypto/internal/simd.h> -#include <crypto/internal/hash.h> - -#include <linux/types.h> -#include <linux/jump_label.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/sizes.h> - -#include <asm/cpufeature.h> -#include <asm/fpu/api.h> -#include <asm/processor.h> -#include <asm/simd.h> - -asmlinkage void blake2s_compress_ssse3(struct blake2s_state *state, - const u8 *block, const size_t nblocks, - const u32 inc); -asmlinkage void blake2s_compress_avx512(struct blake2s_state *state, - const u8 *block, const size_t nblocks, - const u32 inc); - -static __ro_after_init DEFINE_STATIC_KEY_FALSE(blake2s_use_ssse3); -static __ro_after_init DEFINE_STATIC_KEY_FALSE(blake2s_use_avx512); - -void blake2s_compress_arch(struct blake2s_state *state, - const u8 *block, size_t nblocks, - const u32 inc) -{ - /* SIMD disables preemption, so relax after processing each page. */ - BUILD_BUG_ON(SZ_4K / BLAKE2S_BLOCK_SIZE < 8); - - if (!static_branch_likely(&blake2s_use_ssse3) || !crypto_simd_usable()) { - blake2s_compress_generic(state, block, nblocks, inc); - return; - } - - do { - const size_t blocks = min_t(size_t, nblocks, - SZ_4K / BLAKE2S_BLOCK_SIZE); - - kernel_fpu_begin(); - if (IS_ENABLED(CONFIG_AS_AVX512) && - static_branch_likely(&blake2s_use_avx512)) - blake2s_compress_avx512(state, block, blocks, inc); - else - blake2s_compress_ssse3(state, block, blocks, inc); - kernel_fpu_end(); - - nblocks -= blocks; - block += blocks * BLAKE2S_BLOCK_SIZE; - } while (nblocks); -} -EXPORT_SYMBOL(blake2s_compress_arch); - -static int crypto_blake2s_update_x86(struct shash_desc *desc, - const u8 *in, unsigned int inlen) -{ - return crypto_blake2s_update(desc, in, inlen, blake2s_compress_arch); -} - -static int crypto_blake2s_final_x86(struct shash_desc *desc, u8 *out) -{ - return crypto_blake2s_final(desc, out, blake2s_compress_arch); -} - -#define BLAKE2S_ALG(name, driver_name, digest_size) \ - { \ - .base.cra_name = name, \ - .base.cra_driver_name = driver_name, \ - .base.cra_priority = 200, \ - .base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, \ - .base.cra_blocksize = BLAKE2S_BLOCK_SIZE, \ - .base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx), \ - .base.cra_module = THIS_MODULE, \ - .digestsize = digest_size, \ - .setkey = crypto_blake2s_setkey, \ - .init = crypto_blake2s_init, \ - .update = crypto_blake2s_update_x86, \ - .final = crypto_blake2s_final_x86, \ - .descsize = sizeof(struct blake2s_state), \ - } - -static struct shash_alg blake2s_algs[] = { - BLAKE2S_ALG("blake2s-128", "blake2s-128-x86", BLAKE2S_128_HASH_SIZE), - BLAKE2S_ALG("blake2s-160", "blake2s-160-x86", BLAKE2S_160_HASH_SIZE), - BLAKE2S_ALG("blake2s-224", "blake2s-224-x86", BLAKE2S_224_HASH_SIZE), - BLAKE2S_ALG("blake2s-256", "blake2s-256-x86", BLAKE2S_256_HASH_SIZE), -}; - -static int __init blake2s_mod_init(void) -{ - if (!boot_cpu_has(X86_FEATURE_SSSE3)) - return 0; - - static_branch_enable(&blake2s_use_ssse3); - - if (IS_ENABLED(CONFIG_AS_AVX512) && - boot_cpu_has(X86_FEATURE_AVX) && - boot_cpu_has(X86_FEATURE_AVX2) && - boot_cpu_has(X86_FEATURE_AVX512F) && - boot_cpu_has(X86_FEATURE_AVX512VL) && - cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM | - XFEATURE_MASK_AVX512, NULL)) - static_branch_enable(&blake2s_use_avx512); - - return IS_REACHABLE(CONFIG_CRYPTO_HASH) ? - crypto_register_shashes(blake2s_algs, - ARRAY_SIZE(blake2s_algs)) : 0; -} - -static void __exit blake2s_mod_exit(void) -{ - if (IS_REACHABLE(CONFIG_CRYPTO_HASH) && boot_cpu_has(X86_FEATURE_SSSE3)) - crypto_unregister_shashes(blake2s_algs, ARRAY_SIZE(blake2s_algs)); -} - -module_init(blake2s_mod_init); -module_exit(blake2s_mod_exit); - -MODULE_ALIAS_CRYPTO("blake2s-128"); -MODULE_ALIAS_CRYPTO("blake2s-128-x86"); -MODULE_ALIAS_CRYPTO("blake2s-160"); -MODULE_ALIAS_CRYPTO("blake2s-160-x86"); -MODULE_ALIAS_CRYPTO("blake2s-224"); -MODULE_ALIAS_CRYPTO("blake2s-224-x86"); -MODULE_ALIAS_CRYPTO("blake2s-256"); -MODULE_ALIAS_CRYPTO("blake2s-256-x86"); -MODULE_LICENSE("GPL v2"); |