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Diffstat (limited to 'arch/x86/crypto/blake2s-glue.c')
-rw-r--r--arch/x86/crypto/blake2s-glue.c74
1 files changed, 0 insertions, 74 deletions
diff --git a/arch/x86/crypto/blake2s-glue.c b/arch/x86/crypto/blake2s-glue.c
deleted file mode 100644
index 0313f9673f56..000000000000
--- a/arch/x86/crypto/blake2s-glue.c
+++ /dev/null
@@ -1,74 +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 <linux/types.h>
-#include <linux/jump_label.h>
-#include <linux/kernel.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(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) || !may_use_simd()) {
- 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);
-
-static int __init blake2s_mod_init(void)
-{
- if (boot_cpu_has(X86_FEATURE_SSSE3))
- 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 0;
-}
-
-subsys_initcall(blake2s_mod_init);