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-rw-r--r--arch/arm/crypto/crct10dif-ce-glue.c124
1 files changed, 0 insertions, 124 deletions
diff --git a/arch/arm/crypto/crct10dif-ce-glue.c b/arch/arm/crypto/crct10dif-ce-glue.c
deleted file mode 100644
index a8b74523729e..000000000000
--- a/arch/arm/crypto/crct10dif-ce-glue.c
+++ /dev/null
@@ -1,124 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Accelerated CRC-T10DIF using ARM NEON and Crypto Extensions instructions
- *
- * Copyright (C) 2016 Linaro Ltd <ard.biesheuvel@linaro.org>
- */
-
-#include <linux/crc-t10dif.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-
-#include <crypto/internal/hash.h>
-#include <crypto/internal/simd.h>
-
-#include <asm/neon.h>
-#include <asm/simd.h>
-
-#define CRC_T10DIF_PMULL_CHUNK_SIZE 16U
-
-asmlinkage u16 crc_t10dif_pmull64(u16 init_crc, const u8 *buf, size_t len);
-asmlinkage void crc_t10dif_pmull8(u16 init_crc, const u8 *buf, size_t len,
- u8 out[16]);
-
-static int crct10dif_init(struct shash_desc *desc)
-{
- u16 *crc = shash_desc_ctx(desc);
-
- *crc = 0;
- return 0;
-}
-
-static int crct10dif_update_ce(struct shash_desc *desc, const u8 *data,
- unsigned int length)
-{
- u16 *crc = shash_desc_ctx(desc);
-
- if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && crypto_simd_usable()) {
- kernel_neon_begin();
- *crc = crc_t10dif_pmull64(*crc, data, length);
- kernel_neon_end();
- } else {
- *crc = crc_t10dif_generic(*crc, data, length);
- }
-
- return 0;
-}
-
-static int crct10dif_update_neon(struct shash_desc *desc, const u8 *data,
- unsigned int length)
-{
- u16 *crcp = shash_desc_ctx(desc);
- u8 buf[16] __aligned(16);
- u16 crc = *crcp;
-
- if (length > CRC_T10DIF_PMULL_CHUNK_SIZE && crypto_simd_usable()) {
- kernel_neon_begin();
- crc_t10dif_pmull8(crc, data, length, buf);
- kernel_neon_end();
-
- crc = 0;
- data = buf;
- length = sizeof(buf);
- }
-
- *crcp = crc_t10dif_generic(crc, data, length);
- return 0;
-}
-
-static int crct10dif_final(struct shash_desc *desc, u8 *out)
-{
- u16 *crc = shash_desc_ctx(desc);
-
- *(u16 *)out = *crc;
- return 0;
-}
-
-static struct shash_alg algs[] = {{
- .digestsize = CRC_T10DIF_DIGEST_SIZE,
- .init = crct10dif_init,
- .update = crct10dif_update_neon,
- .final = crct10dif_final,
- .descsize = CRC_T10DIF_DIGEST_SIZE,
-
- .base.cra_name = "crct10dif",
- .base.cra_driver_name = "crct10dif-arm-neon",
- .base.cra_priority = 150,
- .base.cra_blocksize = CRC_T10DIF_BLOCK_SIZE,
- .base.cra_module = THIS_MODULE,
-}, {
- .digestsize = CRC_T10DIF_DIGEST_SIZE,
- .init = crct10dif_init,
- .update = crct10dif_update_ce,
- .final = crct10dif_final,
- .descsize = CRC_T10DIF_DIGEST_SIZE,
-
- .base.cra_name = "crct10dif",
- .base.cra_driver_name = "crct10dif-arm-ce",
- .base.cra_priority = 200,
- .base.cra_blocksize = CRC_T10DIF_BLOCK_SIZE,
- .base.cra_module = THIS_MODULE,
-}};
-
-static int __init crc_t10dif_mod_init(void)
-{
- if (!(elf_hwcap & HWCAP_NEON))
- return -ENODEV;
-
- return crypto_register_shashes(algs, 1 + !!(elf_hwcap2 & HWCAP2_PMULL));
-}
-
-static void __exit crc_t10dif_mod_exit(void)
-{
- crypto_unregister_shashes(algs, 1 + !!(elf_hwcap2 & HWCAP2_PMULL));
-}
-
-module_init(crc_t10dif_mod_init);
-module_exit(crc_t10dif_mod_exit);
-
-MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
-MODULE_DESCRIPTION("Accelerated CRC-T10DIF using ARM NEON and Crypto Extensions");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS_CRYPTO("crct10dif");