diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-04 09:11:12 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-04 09:11:12 -0800 |
commit | ccc9d4a6d640cbde05d519edeb727881646cf71b (patch) | |
tree | 736c90b100703501d5e3fa3eccc57a48f70bef14 /arch/x86/crypto | |
parent | 66ef3493d4bb387f5a83915e33dc893102fd1b43 (diff) | |
parent | 271817a3e92c0455bda5856d87eca244ad67d3a2 (diff) | |
download | linux-ccc9d4a6d640cbde05d519edeb727881646cf71b.tar.bz2 |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
"API:
- Add support for cipher output IVs in testmgr
- Add missing crypto_ahash_blocksize helper
- Mark authenc and des ciphers as not allowed under FIPS.
Algorithms:
- Add CRC support to 842 compression
- Add keywrap algorithm
- A number of changes to the akcipher interface:
+ Separate functions for setting public/private keys.
+ Use SG lists.
Drivers:
- Add Intel SHA Extension optimised SHA1 and SHA256
- Use dma_map_sg instead of custom functions in crypto drivers
- Add support for STM32 RNG
- Add support for ST RNG
- Add Device Tree support to exynos RNG driver
- Add support for mxs-dcp crypto device on MX6SL
- Add xts(aes) support to caam
- Add ctr(aes) and xts(aes) support to qat
- A large set of fixes from Russell King for the marvell/cesa driver"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (115 commits)
crypto: asymmetric_keys - Fix unaligned access in x509_get_sig_params()
crypto: akcipher - Don't #include crypto/public_key.h as the contents aren't used
hwrng: exynos - Add Device Tree support
hwrng: exynos - Fix missing configuration after suspend to RAM
hwrng: exynos - Add timeout for waiting on init done
dt-bindings: rng: Describe Exynos4 PRNG bindings
crypto: marvell/cesa - use __le32 for hardware descriptors
crypto: marvell/cesa - fix missing cpu_to_le32() in mv_cesa_dma_add_op()
crypto: marvell/cesa - use memcpy_fromio()/memcpy_toio()
crypto: marvell/cesa - use gfp_t for gfp flags
crypto: marvell/cesa - use dma_addr_t for cur_dma
crypto: marvell/cesa - use readl_relaxed()/writel_relaxed()
crypto: caam - fix indentation of close braces
crypto: caam - only export the state we really need to export
crypto: caam - fix non-block aligned hash calculation
crypto: caam - avoid needlessly saving and restoring caam_hash_ctx
crypto: caam - print errno code when hash registration fails
crypto: marvell/cesa - fix memory leak
crypto: marvell/cesa - fix first-fragment handling in mv_cesa_ahash_dma_last_req()
crypto: marvell/cesa - rearrange handling for sw padded hashes
...
Diffstat (limited to 'arch/x86/crypto')
-rw-r--r-- | arch/x86/crypto/Makefile | 8 | ||||
-rw-r--r-- | arch/x86/crypto/crc32c-pcl-intel-asm_64.S | 2 | ||||
-rw-r--r-- | arch/x86/crypto/sha1_ni_asm.S | 302 | ||||
-rw-r--r-- | arch/x86/crypto/sha1_ssse3_glue.c | 314 | ||||
-rw-r--r-- | arch/x86/crypto/sha256_ni_asm.S | 353 | ||||
-rw-r--r-- | arch/x86/crypto/sha256_ssse3_glue.c | 329 | ||||
-rw-r--r-- | arch/x86/crypto/sha512_ssse3_glue.c | 249 |
7 files changed, 1402 insertions, 155 deletions
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index 9a2838cf0591..b9b912a44d61 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -5,6 +5,8 @@ avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no) avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ $(comma)4)$(comma)%ymm2,yes,no) +sha1_ni_supported :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,yes,no) +sha256_ni_supported :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,yes,no) obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o @@ -91,9 +93,15 @@ ifeq ($(avx2_supported),yes) sha1-ssse3-y += sha1_avx2_x86_64_asm.o poly1305-x86_64-y += poly1305-avx2-x86_64.o endif +ifeq ($(sha1_ni_supported),yes) +sha1-ssse3-y += sha1_ni_asm.o +endif crc32c-intel-y := crc32c-intel_glue.o crc32c-intel-$(CONFIG_64BIT) += crc32c-pcl-intel-asm_64.o crc32-pclmul-y := crc32-pclmul_asm.o crc32-pclmul_glue.o sha256-ssse3-y := sha256-ssse3-asm.o sha256-avx-asm.o sha256-avx2-asm.o sha256_ssse3_glue.o +ifeq ($(sha256_ni_supported),yes) +sha256-ssse3-y += sha256_ni_asm.o +endif sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o crct10dif-pclmul-y := crct10dif-pcl-asm_64.o crct10dif-pclmul_glue.o diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S index 225be06edc80..4fe27e074194 100644 --- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S +++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S @@ -330,7 +330,7 @@ ENDPROC(crc_pcl) ## PCLMULQDQ tables ## Table is 128 entries x 2 words (8 bytes) each ################################################################ -.section .rotata, "a", %progbits +.section .rodata, "a", %progbits .align 8 K_table: .long 0x493c7d27, 0x00000001 diff --git a/arch/x86/crypto/sha1_ni_asm.S b/arch/x86/crypto/sha1_ni_asm.S new file mode 100644 index 000000000000..874a651b9e7d --- /dev/null +++ b/arch/x86/crypto/sha1_ni_asm.S @@ -0,0 +1,302 @@ +/* + * Intel SHA Extensions optimized implementation of a SHA-1 update function + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Sean Gulley <sean.m.gulley@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <linux/linkage.h> + +#define DIGEST_PTR %rdi /* 1st arg */ +#define DATA_PTR %rsi /* 2nd arg */ +#define NUM_BLKS %rdx /* 3rd arg */ + +#define RSPSAVE %rax + +/* gcc conversion */ +#define FRAME_SIZE 32 /* space for 2x16 bytes */ + +#define ABCD %xmm0 +#define E0 %xmm1 /* Need two E's b/c they ping pong */ +#define E1 %xmm2 +#define MSG0 %xmm3 +#define MSG1 %xmm4 +#define MSG2 %xmm5 +#define MSG3 %xmm6 +#define SHUF_MASK %xmm7 + + +/* + * Intel SHA Extensions optimized implementation of a SHA-1 update function + * + * The function takes a pointer to the current hash values, a pointer to the + * input data, and a number of 64 byte blocks to process. Once all blocks have + * been processed, the digest pointer is updated with the resulting hash value. + * The function only processes complete blocks, there is no functionality to + * store partial blocks. All message padding and hash value initialization must + * be done outside the update function. + * + * The indented lines in the loop are instructions related to rounds processing. + * The non-indented lines are instructions related to the message schedule. + * + * void sha1_ni_transform(uint32_t *digest, const void *data, + uint32_t numBlocks) + * digest : pointer to digest + * data: pointer to input data + * numBlocks: Number of blocks to process + */ +.text +.align 32 +ENTRY(sha1_ni_transform) + mov %rsp, RSPSAVE + sub $FRAME_SIZE, %rsp + and $~0xF, %rsp + + shl $6, NUM_BLKS /* convert to bytes */ + jz .Ldone_hash + add DATA_PTR, NUM_BLKS /* pointer to end of data */ + + /* load initial hash values */ + pinsrd $3, 1*16(DIGEST_PTR), E0 + movdqu 0*16(DIGEST_PTR), ABCD + pand UPPER_WORD_MASK(%rip), E0 + pshufd $0x1B, ABCD, ABCD + + movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK + +.Lloop0: + /* Save hash values for addition after rounds */ + movdqa E0, (0*16)(%rsp) + movdqa ABCD, (1*16)(%rsp) + + /* Rounds 0-3 */ + movdqu 0*16(DATA_PTR), MSG0 + pshufb SHUF_MASK, MSG0 + paddd MSG0, E0 + movdqa ABCD, E1 + sha1rnds4 $0, E0, ABCD + + /* Rounds 4-7 */ + movdqu 1*16(DATA_PTR), MSG1 + pshufb SHUF_MASK, MSG1 + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1rnds4 $0, E1, ABCD + sha1msg1 MSG1, MSG0 + + /* Rounds 8-11 */ + movdqu 2*16(DATA_PTR), MSG2 + pshufb SHUF_MASK, MSG2 + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1rnds4 $0, E0, ABCD + sha1msg1 MSG2, MSG1 + pxor MSG2, MSG0 + + /* Rounds 12-15 */ + movdqu 3*16(DATA_PTR), MSG3 + pshufb SHUF_MASK, MSG3 + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1msg2 MSG3, MSG0 + sha1rnds4 $0, E1, ABCD + sha1msg1 MSG3, MSG2 + pxor MSG3, MSG1 + + /* Rounds 16-19 */ + sha1nexte MSG0, E0 + movdqa ABCD, E1 + sha1msg2 MSG0, MSG1 + sha1rnds4 $0, E0, ABCD + sha1msg1 MSG0, MSG3 + pxor MSG0, MSG2 + + /* Rounds 20-23 */ + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1msg2 MSG1, MSG2 + sha1rnds4 $1, E1, ABCD + sha1msg1 MSG1, MSG0 + pxor MSG1, MSG3 + + /* Rounds 24-27 */ + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1msg2 MSG2, MSG3 + sha1rnds4 $1, E0, ABCD + sha1msg1 MSG2, MSG1 + pxor MSG2, MSG0 + + /* Rounds 28-31 */ + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1msg2 MSG3, MSG0 + sha1rnds4 $1, E1, ABCD + sha1msg1 MSG3, MSG2 + pxor MSG3, MSG1 + + /* Rounds 32-35 */ + sha1nexte MSG0, E0 + movdqa ABCD, E1 + sha1msg2 MSG0, MSG1 + sha1rnds4 $1, E0, ABCD + sha1msg1 MSG0, MSG3 + pxor MSG0, MSG2 + + /* Rounds 36-39 */ + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1msg2 MSG1, MSG2 + sha1rnds4 $1, E1, ABCD + sha1msg1 MSG1, MSG0 + pxor MSG1, MSG3 + + /* Rounds 40-43 */ + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1msg2 MSG2, MSG3 + sha1rnds4 $2, E0, ABCD + sha1msg1 MSG2, MSG1 + pxor MSG2, MSG0 + + /* Rounds 44-47 */ + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1msg2 MSG3, MSG0 + sha1rnds4 $2, E1, ABCD + sha1msg1 MSG3, MSG2 + pxor MSG3, MSG1 + + /* Rounds 48-51 */ + sha1nexte MSG0, E0 + movdqa ABCD, E1 + sha1msg2 MSG0, MSG1 + sha1rnds4 $2, E0, ABCD + sha1msg1 MSG0, MSG3 + pxor MSG0, MSG2 + + /* Rounds 52-55 */ + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1msg2 MSG1, MSG2 + sha1rnds4 $2, E1, ABCD + sha1msg1 MSG1, MSG0 + pxor MSG1, MSG3 + + /* Rounds 56-59 */ + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1msg2 MSG2, MSG3 + sha1rnds4 $2, E0, ABCD + sha1msg1 MSG2, MSG1 + pxor MSG2, MSG0 + + /* Rounds 60-63 */ + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1msg2 MSG3, MSG0 + sha1rnds4 $3, E1, ABCD + sha1msg1 MSG3, MSG2 + pxor MSG3, MSG1 + + /* Rounds 64-67 */ + sha1nexte MSG0, E0 + movdqa ABCD, E1 + sha1msg2 MSG0, MSG1 + sha1rnds4 $3, E0, ABCD + sha1msg1 MSG0, MSG3 + pxor MSG0, MSG2 + + /* Rounds 68-71 */ + sha1nexte MSG1, E1 + movdqa ABCD, E0 + sha1msg2 MSG1, MSG2 + sha1rnds4 $3, E1, ABCD + pxor MSG1, MSG3 + + /* Rounds 72-75 */ + sha1nexte MSG2, E0 + movdqa ABCD, E1 + sha1msg2 MSG2, MSG3 + sha1rnds4 $3, E0, ABCD + + /* Rounds 76-79 */ + sha1nexte MSG3, E1 + movdqa ABCD, E0 + sha1rnds4 $3, E1, ABCD + + /* Add current hash values with previously saved */ + sha1nexte (0*16)(%rsp), E0 + paddd (1*16)(%rsp), ABCD + + /* Increment data pointer and loop if more to process */ + add $64, DATA_PTR + cmp NUM_BLKS, DATA_PTR + jne .Lloop0 + + /* Write hash values back in the correct order */ + pshufd $0x1B, ABCD, ABCD + movdqu ABCD, 0*16(DIGEST_PTR) + pextrd $3, E0, 1*16(DIGEST_PTR) + +.Ldone_hash: + mov RSPSAVE, %rsp + + ret +ENDPROC(sha1_ni_transform) + +.data + +.align 64 +PSHUFFLE_BYTE_FLIP_MASK: + .octa 0x000102030405060708090a0b0c0d0e0f +UPPER_WORD_MASK: + .octa 0xFFFFFFFF000000000000000000000000 diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c index 00212c32d4db..dd14616b7739 100644 --- a/arch/x86/crypto/sha1_ssse3_glue.c +++ b/arch/x86/crypto/sha1_ssse3_glue.c @@ -31,24 +31,11 @@ #include <crypto/sha1_base.h> #include <asm/fpu/api.h> +typedef void (sha1_transform_fn)(u32 *digest, const char *data, + unsigned int rounds); -asmlinkage void sha1_transform_ssse3(u32 *digest, const char *data, - unsigned int rounds); -#ifdef CONFIG_AS_AVX -asmlinkage void sha1_transform_avx(u32 *digest, const char *data, - unsigned int rounds); -#endif -#ifdef CONFIG_AS_AVX2 -#define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */ - -asmlinkage void sha1_transform_avx2(u32 *digest, const char *data, - unsigned int rounds); -#endif - -static void (*sha1_transform_asm)(u32 *, const char *, unsigned int); - -static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data, - unsigned int len) +static int sha1_update(struct shash_desc *desc, const u8 *data, + unsigned int len, sha1_transform_fn *sha1_xform) { struct sha1_state *sctx = shash_desc_ctx(desc); @@ -61,14 +48,14 @@ static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data, kernel_fpu_begin(); sha1_base_do_update(desc, data, len, - (sha1_block_fn *)sha1_transform_asm); + (sha1_block_fn *)sha1_xform); kernel_fpu_end(); return 0; } -static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) +static int sha1_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out, sha1_transform_fn *sha1_xform) { if (!irq_fpu_usable()) return crypto_sha1_finup(desc, data, len, out); @@ -76,32 +63,37 @@ static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data, kernel_fpu_begin(); if (len) sha1_base_do_update(desc, data, len, - (sha1_block_fn *)sha1_transform_asm); - sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_transform_asm); + (sha1_block_fn *)sha1_xform); + sha1_base_do_finalize(desc, (sha1_block_fn *)sha1_xform); kernel_fpu_end(); return sha1_base_finish(desc, out); } -/* Add padding and return the message digest. */ -static int sha1_ssse3_final(struct shash_desc *desc, u8 *out) +asmlinkage void sha1_transform_ssse3(u32 *digest, const char *data, + unsigned int rounds); + +static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data, + unsigned int len) { - return sha1_ssse3_finup(desc, NULL, 0, out); + return sha1_update(desc, data, len, + (sha1_transform_fn *) sha1_transform_ssse3); } -#ifdef CONFIG_AS_AVX2 -static void sha1_apply_transform_avx2(u32 *digest, const char *data, - unsigned int rounds) +static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) { - /* Select the optimal transform based on data block size */ - if (rounds >= SHA1_AVX2_BLOCK_OPTSIZE) - sha1_transform_avx2(digest, data, rounds); - else - sha1_transform_avx(digest, data, rounds); + return sha1_finup(desc, data, len, out, + (sha1_transform_fn *) sha1_transform_ssse3); +} + +/* Add padding and return the message digest. */ +static int sha1_ssse3_final(struct shash_desc *desc, u8 *out) +{ + return sha1_ssse3_finup(desc, NULL, 0, out); } -#endif -static struct shash_alg alg = { +static struct shash_alg sha1_ssse3_alg = { .digestsize = SHA1_DIGEST_SIZE, .init = sha1_base_init, .update = sha1_ssse3_update, @@ -110,7 +102,7 @@ static struct shash_alg alg = { .descsize = sizeof(struct sha1_state), .base = { .cra_name = "sha1", - .cra_driver_name= "sha1-ssse3", + .cra_driver_name = "sha1-ssse3", .cra_priority = 150, .cra_flags = CRYPTO_ALG_TYPE_SHASH, .cra_blocksize = SHA1_BLOCK_SIZE, @@ -118,8 +110,60 @@ static struct shash_alg alg = { } }; +static int register_sha1_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + return crypto_register_shash(&sha1_ssse3_alg); + return 0; +} + +static void unregister_sha1_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + crypto_unregister_shash(&sha1_ssse3_alg); +} + #ifdef CONFIG_AS_AVX -static bool __init avx_usable(void) +asmlinkage void sha1_transform_avx(u32 *digest, const char *data, + unsigned int rounds); + +static int sha1_avx_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha1_update(desc, data, len, + (sha1_transform_fn *) sha1_transform_avx); +} + +static int sha1_avx_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha1_finup(desc, data, len, out, + (sha1_transform_fn *) sha1_transform_avx); +} + +static int sha1_avx_final(struct shash_desc *desc, u8 *out) +{ + return sha1_avx_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha1_avx_alg = { + .digestsize = SHA1_DIGEST_SIZE, + .init = sha1_base_init, + .update = sha1_avx_update, + .final = sha1_avx_final, + .finup = sha1_avx_finup, + .descsize = sizeof(struct sha1_state), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1-avx", + .cra_priority = 160, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static bool avx_usable(void) { if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) { if (cpu_has_avx) @@ -130,55 +174,197 @@ static bool __init avx_usable(void) return true; } -#ifdef CONFIG_AS_AVX2 -static bool __init avx2_usable(void) +static int register_sha1_avx(void) +{ + if (avx_usable()) + return crypto_register_shash(&sha1_avx_alg); + return 0; +} + +static void unregister_sha1_avx(void) { - if (avx_usable() && cpu_has_avx2 && boot_cpu_has(X86_FEATURE_BMI1) && - boot_cpu_has(X86_FEATURE_BMI2)) + if (avx_usable()) + crypto_unregister_shash(&sha1_avx_alg); +} + +#else /* CONFIG_AS_AVX */ +static inline int register_sha1_avx(void) { return 0; } +static inline void unregister_sha1_avx(void) { } +#endif /* CONFIG_AS_AVX */ + + +#if defined(CONFIG_AS_AVX2) && (CONFIG_AS_AVX) +#define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */ + +asmlinkage void sha1_transform_avx2(u32 *digest, const char *data, + unsigned int rounds); + +static bool avx2_usable(void) +{ + if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) + && boot_cpu_has(X86_FEATURE_BMI1) + && boot_cpu_has(X86_FEATURE_BMI2)) return true; return false; } + +static void sha1_apply_transform_avx2(u32 *digest, const char *data, + unsigned int rounds) +{ + /* Select the optimal transform based on data block size */ + if (rounds >= SHA1_AVX2_BLOCK_OPTSIZE) + sha1_transform_avx2(digest, data, rounds); + else + sha1_transform_avx(digest, data, rounds); +} + +static int sha1_avx2_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha1_update(desc, data, len, + (sha1_transform_fn *) sha1_apply_transform_avx2); +} + +static int sha1_avx2_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha1_finup(desc, data, len, out, + (sha1_transform_fn *) sha1_apply_transform_avx2); +} + +static int sha1_avx2_final(struct shash_desc *desc, u8 *out) +{ + return sha1_avx2_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha1_avx2_alg = { + .digestsize = SHA1_DIGEST_SIZE, + .init = sha1_base_init, + .update = sha1_avx2_update, + .final = sha1_avx2_final, + .finup = sha1_avx2_finup, + .descsize = sizeof(struct sha1_state), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1-avx2", + .cra_priority = 170, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static int register_sha1_avx2(void) +{ + if (avx2_usable()) + return crypto_register_shash(&sha1_avx2_alg); + return 0; +} + +static void unregister_sha1_avx2(void) +{ + if (avx2_usable()) + crypto_unregister_shash(&sha1_avx2_alg); +} + +#else +static inline int register_sha1_avx2(void) { return 0; } +static inline void unregister_sha1_avx2(void) { } #endif + +#ifdef CONFIG_AS_SHA1_NI +asmlinkage void sha1_ni_transform(u32 *digest, const char *data, + unsigned int rounds); + +static int sha1_ni_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha1_update(desc, data, len, + (sha1_transform_fn *) sha1_ni_transform); +} + +static int sha1_ni_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha1_finup(desc, data, len, out, + (sha1_transform_fn *) sha1_ni_transform); +} + +static int sha1_ni_final(struct shash_desc *desc, u8 *out) +{ + return sha1_ni_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha1_ni_alg = { + .digestsize = SHA1_DIGEST_SIZE, + .init = sha1_base_init, + .update = sha1_ni_update, + .final = sha1_ni_final, + .finup = sha1_ni_finup, + .descsize = sizeof(struct sha1_state), + .base = { + .cra_name = "sha1", + .cra_driver_name = "sha1-ni", + .cra_priority = 250, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA1_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}; + +static int register_sha1_ni(void) +{ + if (boot_cpu_has(X86_FEATURE_SHA_NI)) + return crypto_register_shash(&sha1_ni_alg); + return 0; +} + +static void unregister_sha1_ni(void) +{ + if (boot_cpu_has(X86_FEATURE_SHA_NI)) + crypto_unregister_shash(&sha1_ni_alg); +} + +#else +static inline int register_sha1_ni(void) { return 0; } +static inline void unregister_sha1_ni(void) { } #endif static int __init sha1_ssse3_mod_init(void) { - char *algo_name; + if (register_sha1_ssse3()) + goto fail; - /* test for SSSE3 first */ - if (cpu_has_ssse3) { - sha1_transform_asm = sha1_transform_ssse3; - algo_name = "SSSE3"; + if (register_sha1_avx()) { + unregister_sha1_ssse3(); + goto fail; } -#ifdef CONFIG_AS_AVX - /* allow AVX to override SSSE3, it's a little faster */ - if (avx_usable()) { - sha1_transform_asm = sha1_transform_avx; - algo_name = "AVX"; -#ifdef CONFIG_AS_AVX2 - /* allow AVX2 to override AVX, it's a little faster */ - if (avx2_usable()) { - sha1_transform_asm = sha1_apply_transform_avx2; - algo_name = "AVX2"; - } -#endif + if (register_sha1_avx2()) { + unregister_sha1_avx(); + unregister_sha1_ssse3(); + goto fail; } -#endif - if (sha1_transform_asm) { - pr_info("Using %s optimized SHA-1 implementation\n", algo_name); - return crypto_register_shash(&alg); + if (register_sha1_ni()) { + unregister_sha1_avx2(); + unregister_sha1_avx(); + unregister_sha1_ssse3(); + goto fail; } - pr_info("Neither AVX nor AVX2 nor SSSE3 is available/usable.\n"); + return 0; +fail: return -ENODEV; } static void __exit sha1_ssse3_mod_fini(void) { - crypto_unregister_shash(&alg); + unregister_sha1_ni(); + unregister_sha1_avx2(); + unregister_sha1_avx(); + unregister_sha1_ssse3(); } module_init(sha1_ssse3_mod_init); diff --git a/arch/x86/crypto/sha256_ni_asm.S b/arch/x86/crypto/sha256_ni_asm.S new file mode 100644 index 000000000000..748cdf21a938 --- /dev/null +++ b/arch/x86/crypto/sha256_ni_asm.S @@ -0,0 +1,353 @@ +/* + * Intel SHA Extensions optimized implementation of a SHA-256 update function + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * Contact Information: + * Sean Gulley <sean.m.gulley@intel.com> + * Tim Chen <tim.c.chen@linux.intel.com> + * + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ + +#include <linux/linkage.h> + +#define DIGEST_PTR %rdi /* 1st arg */ +#define DATA_PTR %rsi /* 2nd arg */ +#define NUM_BLKS %rdx /* 3rd arg */ + +#define SHA256CONSTANTS %rax + +#define MSG %xmm0 +#define STATE0 %xmm1 +#define STATE1 %xmm2 +#define MSGTMP0 %xmm3 +#define MSGTMP1 %xmm4 +#define MSGTMP2 %xmm5 +#define MSGTMP3 %xmm6 +#define MSGTMP4 %xmm7 + +#define SHUF_MASK %xmm8 + +#define ABEF_SAVE %xmm9 +#define CDGH_SAVE %xmm10 + +/* + * Intel SHA Extensions optimized implementation of a SHA-256 update function + * + * The function takes a pointer to the current hash values, a pointer to the + * input data, and a number of 64 byte blocks to process. Once all blocks have + * been processed, the digest pointer is updated with the resulting hash value. + * The function only processes complete blocks, there is no functionality to + * store partial blocks. All message padding and hash value initialization must + * be done outside the update function. + * + * The indented lines in the loop are instructions related to rounds processing. + * The non-indented lines are instructions related to the message schedule. + * + * void sha256_ni_transform(uint32_t *digest, const void *data, + uint32_t numBlocks); + * digest : pointer to digest + * data: pointer to input data + * numBlocks: Number of blocks to process + */ + +.text +.align 32 +ENTRY(sha256_ni_transform) + + shl $6, NUM_BLKS /* convert to bytes */ + jz .Ldone_hash + add DATA_PTR, NUM_BLKS /* pointer to end of data */ + + /* + * load initial hash values + * Need to reorder these appropriately + * DCBA, HGFE -> ABEF, CDGH + */ + movdqu 0*16(DIGEST_PTR), STATE0 + movdqu 1*16(DIGEST_PTR), STATE1 + + pshufd $0xB1, STATE0, STATE0 /* CDAB */ + pshufd $0x1B, STATE1, STATE1 /* EFGH */ + movdqa STATE0, MSGTMP4 + palignr $8, STATE1, STATE0 /* ABEF */ + pblendw $0xF0, MSGTMP4, STATE1 /* CDGH */ + + movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK + lea K256(%rip), SHA256CONSTANTS + +.Lloop0: + /* Save hash values for addition after rounds */ + movdqa STATE0, ABEF_SAVE + movdqa STATE1, CDGH_SAVE + + /* Rounds 0-3 */ + movdqu 0*16(DATA_PTR), MSG + pshufb SHUF_MASK, MSG + movdqa MSG, MSGTMP0 + paddd 0*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + + /* Rounds 4-7 */ + movdqu 1*16(DATA_PTR), MSG + pshufb SHUF_MASK, MSG + movdqa MSG, MSGTMP1 + paddd 1*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 8-11 */ + movdqu 2*16(DATA_PTR), MSG + pshufb SHUF_MASK, MSG + movdqa MSG, MSGTMP2 + paddd 2*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 12-15 */ + movdqu 3*16(DATA_PTR), MSG + pshufb SHUF_MASK, MSG + movdqa MSG, MSGTMP3 + paddd 3*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP3, MSGTMP4 + palignr $4, MSGTMP2, MSGTMP4 + paddd MSGTMP4, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 16-19 */ + movdqa MSGTMP0, MSG + paddd 4*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP0, MSGTMP4 + palignr $4, MSGTMP3, MSGTMP4 + paddd MSGTMP4, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 20-23 */ + movdqa MSGTMP1, MSG + paddd 5*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP1, MSGTMP4 + palignr $4, MSGTMP0, MSGTMP4 + paddd MSGTMP4, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 24-27 */ + movdqa MSGTMP2, MSG + paddd 6*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP2, MSGTMP4 + palignr $4, MSGTMP1, MSGTMP4 + paddd MSGTMP4, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 28-31 */ + movdqa MSGTMP3, MSG + paddd 7*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP3, MSGTMP4 + palignr $4, MSGTMP2, MSGTMP4 + paddd MSGTMP4, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 32-35 */ + movdqa MSGTMP0, MSG + paddd 8*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP0, MSGTMP4 + palignr $4, MSGTMP3, MSGTMP4 + paddd MSGTMP4, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 36-39 */ + movdqa MSGTMP1, MSG + paddd 9*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP1, MSGTMP4 + palignr $4, MSGTMP0, MSGTMP4 + paddd MSGTMP4, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP1, MSGTMP0 + + /* Rounds 40-43 */ + movdqa MSGTMP2, MSG + paddd 10*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP2, MSGTMP4 + palignr $4, MSGTMP1, MSGTMP4 + paddd MSGTMP4, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP2, MSGTMP1 + + /* Rounds 44-47 */ + movdqa MSGTMP3, MSG + paddd 11*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP3, MSGTMP4 + palignr $4, MSGTMP2, MSGTMP4 + paddd MSGTMP4, MSGTMP0 + sha256msg2 MSGTMP3, MSGTMP0 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP3, MSGTMP2 + + /* Rounds 48-51 */ + movdqa MSGTMP0, MSG + paddd 12*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP0, MSGTMP4 + palignr $4, MSGTMP3, MSGTMP4 + paddd MSGTMP4, MSGTMP1 + sha256msg2 MSGTMP0, MSGTMP1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + sha256msg1 MSGTMP0, MSGTMP3 + + /* Rounds 52-55 */ + movdqa MSGTMP1, MSG + paddd 13*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP1, MSGTMP4 + palignr $4, MSGTMP0, MSGTMP4 + paddd MSGTMP4, MSGTMP2 + sha256msg2 MSGTMP1, MSGTMP2 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + + /* Rounds 56-59 */ + movdqa MSGTMP2, MSG + paddd 14*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + movdqa MSGTMP2, MSGTMP4 + palignr $4, MSGTMP1, MSGTMP4 + paddd MSGTMP4, MSGTMP3 + sha256msg2 MSGTMP2, MSGTMP3 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + + /* Rounds 60-63 */ + movdqa MSGTMP3, MSG + paddd 15*16(SHA256CONSTANTS), MSG + sha256rnds2 STATE0, STATE1 + pshufd $0x0E, MSG, MSG + sha256rnds2 STATE1, STATE0 + + /* Add current hash values with previously saved */ + paddd ABEF_SAVE, STATE0 + paddd CDGH_SAVE, STATE1 + + /* Increment data pointer and loop if more to process */ + add $64, DATA_PTR + cmp NUM_BLKS, DATA_PTR + jne .Lloop0 + + /* Write hash values back in the correct order */ + pshufd $0x1B, STATE0, STATE0 /* FEBA */ + pshufd $0xB1, STATE1, STATE1 /* DCHG */ + movdqa STATE0, MSGTMP4 + pblendw $0xF0, STATE1, STATE0 /* DCBA */ + palignr $8, MSGTMP4, STATE1 /* HGFE */ + + movdqu STATE0, 0*16(DIGEST_PTR) + movdqu STATE1, 1*16(DIGEST_PTR) + +.Ldone_hash: + + ret +ENDPROC(sha256_ni_transform) + +.data +.align 64 +K256: + .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5 + .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5 + .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3 + .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174 + .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc + .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da + .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7 + .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967 + .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13 + .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85 + .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3 + .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070 + .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5 + .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3 + .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208 + .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2 + +PSHUFFLE_BYTE_FLIP_MASK: + .octa 0x0c0d0e0f08090a0b0405060700010203 diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c index 0e0e85aea634..5f4d6086dc59 100644 --- a/arch/x86/crypto/sha256_ssse3_glue.c +++ b/arch/x86/crypto/sha256_ssse3_glue.c @@ -42,19 +42,10 @@ asmlinkage void sha256_transform_ssse3(u32 *digest, const char *data, u64 rounds); -#ifdef CONFIG_AS_AVX -asmlinkage void sha256_transform_avx(u32 *digest, const char *data, - u64 rounds); -#endif -#ifdef CONFIG_AS_AVX2 -asmlinkage void sha256_transform_rorx(u32 *digest, const char *data, - u64 rounds); -#endif - -static void (*sha256_transform_asm)(u32 *, const char *, u64); +typedef void (sha256_transform_fn)(u32 *digest, const char *data, u64 rounds); -static int sha256_ssse3_update(struct shash_desc *desc, const u8 *data, - unsigned int len) +static int sha256_update(struct shash_desc *desc, const u8 *data, + unsigned int len, sha256_transform_fn *sha256_xform) { struct sha256_state *sctx = shash_desc_ctx(desc); @@ -67,14 +58,14 @@ static int sha256_ssse3_update(struct shash_desc *desc, const u8 *data, kernel_fpu_begin(); sha256_base_do_update(desc, data, len, - (sha256_block_fn *)sha256_transform_asm); + (sha256_block_fn *)sha256_xform); kernel_fpu_end(); return 0; } -static int sha256_ssse3_finup(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) +static int sha256_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out, sha256_transform_fn *sha256_xform) { if (!irq_fpu_usable()) return crypto_sha256_finup(desc, data, len, out); @@ -82,20 +73,32 @@ static int sha256_ssse3_finup(struct shash_desc *desc, const u8 *data, kernel_fpu_begin(); if (len) sha256_base_do_update(desc, data, len, - (sha256_block_fn *)sha256_transform_asm); - sha256_base_do_finalize(desc, (sha256_block_fn *)sha256_transform_asm); + (sha256_block_fn *)sha256_xform); + sha256_base_do_finalize(desc, (sha256_block_fn *)sha256_xform); kernel_fpu_end(); return sha256_base_finish(desc, out); } +static int sha256_ssse3_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha256_update(desc, data, len, sha256_transform_ssse3); +} + +static int sha256_ssse3_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha256_finup(desc, data, len, out, sha256_transform_ssse3); +} + /* Add padding and return the message digest. */ static int sha256_ssse3_final(struct shash_desc *desc, u8 *out) { return sha256_ssse3_finup(desc, NULL, 0, out); } -static struct shash_alg algs[] = { { +static struct shash_alg sha256_ssse3_algs[] = { { .digestsize = SHA256_DIGEST_SIZE, .init = sha256_base_init, .update = sha256_ssse3_update, @@ -127,8 +130,75 @@ static struct shash_alg algs[] = { { } } }; +static int register_sha256_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + return crypto_register_shashes(sha256_ssse3_algs, + ARRAY_SIZE(sha256_ssse3_algs)); + return 0; +} + +static void unregister_sha256_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + crypto_unregister_shashes(sha256_ssse3_algs, + ARRAY_SIZE(sha256_ssse3_algs)); +} + #ifdef CONFIG_AS_AVX -static bool __init avx_usable(void) +asmlinkage void sha256_transform_avx(u32 *digest, const char *data, + u64 rounds); + +static int sha256_avx_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha256_update(desc, data, len, sha256_transform_avx); +} + +static int sha256_avx_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha256_finup(desc, data, len, out, sha256_transform_avx); +} + +static int sha256_avx_final(struct shash_desc *desc, u8 *out) +{ + return sha256_avx_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha256_avx_algs[] = { { + .digestsize = SHA256_DIGEST_SIZE, + .init = sha256_base_init, + .update = sha256_avx_update, + .final = sha256_avx_final, + .finup = sha256_avx_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha256", + .cra_driver_name = "sha256-avx", + .cra_priority = 160, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA224_DIGEST_SIZE, + .init = sha224_base_init, + .update = sha256_avx_update, + .final = sha256_avx_final, + .finup = sha256_avx_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha224", + .cra_driver_name = "sha224-avx", + .cra_priority = 160, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA224_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static bool avx_usable(void) { if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) { if (cpu_has_avx) @@ -138,47 +208,216 @@ static bool __init avx_usable(void) return true; } -#endif -static int __init sha256_ssse3_mod_init(void) +static int register_sha256_avx(void) { - /* test for SSSE3 first */ - if (cpu_has_ssse3) - sha256_transform_asm = sha256_transform_ssse3; + if (avx_usable()) + return crypto_register_shashes(sha256_avx_algs, + ARRAY_SIZE(sha256_avx_algs)); + return 0; +} -#ifdef CONFIG_AS_AVX - /* allow AVX to override SSSE3, it's a little faster */ - if (avx_usable()) { -#ifdef CONFIG_AS_AVX2 - if (boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_BMI2)) - sha256_transform_asm = sha256_transform_rorx; - else +static void unregister_sha256_avx(void) +{ + if (avx_usable()) + crypto_unregister_shashes(sha256_avx_algs, + ARRAY_SIZE(sha256_avx_algs)); +} + +#else +static inline int register_sha256_avx(void) { return 0; } +static inline void unregister_sha256_avx(void) { } #endif - sha256_transform_asm = sha256_transform_avx; + +#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX) +asmlinkage void sha256_transform_rorx(u32 *digest, const char *data, + u64 rounds); + +static int sha256_avx2_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha256_update(desc, data, len, sha256_transform_rorx); +} + +static int sha256_avx2_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha256_finup(desc, data, len, out, sha256_transform_rorx); +} + +static int sha256_avx2_final(struct shash_desc *desc, u8 *out) +{ + return sha256_avx2_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha256_avx2_algs[] = { { + .digestsize = SHA256_DIGEST_SIZE, + .init = sha256_base_init, + .update = sha256_avx2_update, + .final = sha256_avx2_final, + .finup = sha256_avx2_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha256", + .cra_driver_name = "sha256-avx2", + .cra_priority = 170, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, } -#endif +}, { + .digestsize = SHA224_DIGEST_SIZE, + .init = sha224_base_init, + .update = sha256_avx2_update, + .final = sha256_avx2_final, + .finup = sha256_avx2_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha224", + .cra_driver_name = "sha224-avx2", + .cra_priority = 170, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA224_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; - if (sha256_transform_asm) { -#ifdef CONFIG_AS_AVX - if (sha256_transform_asm == sha256_transform_avx) - pr_info("Using AVX optimized SHA-256 implementation\n"); -#ifdef CONFIG_AS_AVX2 - else if (sha256_transform_asm == sha256_transform_rorx) - pr_info("Using AVX2 optimized SHA-256 implementation\n"); +static bool avx2_usable(void) +{ + if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) && + boot_cpu_has(X86_FEATURE_BMI2)) + return true; + + return false; +} + +static int register_sha256_avx2(void) +{ + if (avx2_usable()) + return crypto_register_shashes(sha256_avx2_algs, + ARRAY_SIZE(sha256_avx2_algs)); + return 0; +} + +static void unregister_sha256_avx2(void) +{ + if (avx2_usable()) + crypto_unregister_shashes(sha256_avx2_algs, + ARRAY_SIZE(sha256_avx2_algs)); +} + +#else +static inline int register_sha256_avx2(void) { return 0; } +static inline void unregister_sha256_avx2(void) { } #endif - else + +#ifdef CONFIG_AS_SHA256_NI +asmlinkage void sha256_ni_transform(u32 *digest, const char *data, + u64 rounds); /*unsigned int rounds);*/ + +static int sha256_ni_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha256_update(desc, data, len, sha256_ni_transform); +} + +static int sha256_ni_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha256_finup(desc, data, len, out, sha256_ni_transform); +} + +static int sha256_ni_final(struct shash_desc *desc, u8 *out) +{ + return sha256_ni_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha256_ni_algs[] = { { + .digestsize = SHA256_DIGEST_SIZE, + .init = sha256_base_init, + .update = sha256_ni_update, + .final = sha256_ni_final, + .finup = sha256_ni_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha256", + .cra_driver_name = "sha256-ni", + .cra_priority = 250, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA256_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA224_DIGEST_SIZE, + .init = sha224_base_init, + .update = sha256_ni_update, + .final = sha256_ni_final, + .finup = sha256_ni_finup, + .descsize = sizeof(struct sha256_state), + .base = { + .cra_name = "sha224", + .cra_driver_name = "sha224-ni", + .cra_priority = 250, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA224_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static int register_sha256_ni(void) +{ + if (boot_cpu_has(X86_FEATURE_SHA_NI)) + return crypto_register_shashes(sha256_ni_algs, + ARRAY_SIZE(sha256_ni_algs)); + return 0; +} + +static void unregister_sha256_ni(void) +{ + if (boot_cpu_has(X86_FEATURE_SHA_NI)) + crypto_unregister_shashes(sha256_ni_algs, + ARRAY_SIZE(sha256_ni_algs)); +} + +#else +static inline int register_sha256_ni(void) { return 0; } +static inline void unregister_sha256_ni(void) { } #endif - pr_info("Using SSSE3 optimized SHA-256 implementation\n"); - return crypto_register_shashes(algs, ARRAY_SIZE(algs)); + +static int __init sha256_ssse3_mod_init(void) +{ + if (register_sha256_ssse3()) + goto fail; + + if (register_sha256_avx()) { + unregister_sha256_ssse3(); + goto fail; } - pr_info("Neither AVX nor SSSE3 is available/usable.\n"); + if (register_sha256_avx2()) { + unregister_sha256_avx(); + unregister_sha256_ssse3(); + goto fail; + } + + if (register_sha256_ni()) { + unregister_sha256_avx2(); + unregister_sha256_avx(); + unregister_sha256_ssse3(); + goto fail; + } + + return 0; +fail: return -ENODEV; } static void __exit sha256_ssse3_mod_fini(void) { - crypto_unregister_shashes(algs, ARRAY_SIZE(algs)); + unregister_sha256_ni(); + unregister_sha256_avx2(); + unregister_sha256_avx(); + unregister_sha256_ssse3(); } module_init(sha256_ssse3_mod_init); diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c index 0c8c38c101ac..34e5083d6f36 100644 --- a/arch/x86/crypto/sha512_ssse3_glue.c +++ b/arch/x86/crypto/sha512_ssse3_glue.c @@ -41,19 +41,11 @@ asmlinkage void sha512_transform_ssse3(u64 *digest, const char *data, u64 rounds); -#ifdef CONFIG_AS_AVX -asmlinkage void sha512_transform_avx(u64 *digest, const char *data, - u64 rounds); -#endif -#ifdef CONFIG_AS_AVX2 -asmlinkage void sha512_transform_rorx(u64 *digest, const char *data, - u64 rounds); -#endif -static void (*sha512_transform_asm)(u64 *, const char *, u64); +typedef void (sha512_transform_fn)(u64 *digest, const char *data, u64 rounds); -static int sha512_ssse3_update(struct shash_desc *desc, const u8 *data, - unsigned int len) +static int sha512_update(struct shash_desc *desc, const u8 *data, + unsigned int len, sha512_transform_fn *sha512_xform) { struct sha512_state *sctx = shash_desc_ctx(desc); @@ -66,14 +58,14 @@ static int sha512_ssse3_update(struct shash_desc *desc, const u8 *data, kernel_fpu_begin(); sha512_base_do_update(desc, data, len, - (sha512_block_fn *)sha512_transform_asm); + (sha512_block_fn *)sha512_xform); kernel_fpu_end(); return 0; } -static int sha512_ssse3_finup(struct shash_desc *desc, const u8 *data, - unsigned int len, u8 *out) +static int sha512_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out, sha512_transform_fn *sha512_xform) { if (!irq_fpu_usable()) return crypto_sha512_finup(desc, data, len, out); @@ -81,20 +73,32 @@ static int sha512_ssse3_finup(struct shash_desc *desc, const u8 *data, kernel_fpu_begin(); if (len) sha512_base_do_update(desc, data, len, - (sha512_block_fn *)sha512_transform_asm); - sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_transform_asm); + (sha512_block_fn *)sha512_xform); + sha512_base_do_finalize(desc, (sha512_block_fn *)sha512_xform); kernel_fpu_end(); return sha512_base_finish(desc, out); } +static int sha512_ssse3_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha512_update(desc, data, len, sha512_transform_ssse3); +} + +static int sha512_ssse3_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha512_finup(desc, data, len, out, sha512_transform_ssse3); +} + /* Add padding and return the message digest. */ static int sha512_ssse3_final(struct shash_desc *desc, u8 *out) { return sha512_ssse3_finup(desc, NULL, 0, out); } -static struct shash_alg algs[] = { { +static struct shash_alg sha512_ssse3_algs[] = { { .digestsize = SHA512_DIGEST_SIZE, .init = sha512_base_init, .update = sha512_ssse3_update, @@ -126,8 +130,25 @@ static struct shash_alg algs[] = { { } } }; +static int register_sha512_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + return crypto_register_shashes(sha512_ssse3_algs, + ARRAY_SIZE(sha512_ssse3_algs)); + return 0; +} + +static void unregister_sha512_ssse3(void) +{ + if (boot_cpu_has(X86_FEATURE_SSSE3)) + crypto_unregister_shashes(sha512_ssse3_algs, + ARRAY_SIZE(sha512_ssse3_algs)); +} + #ifdef CONFIG_AS_AVX -static bool __init avx_usable(void) +asmlinkage void sha512_transform_avx(u64 *digest, const char *data, + u64 rounds); +static bool avx_usable(void) { if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) { if (cpu_has_avx) @@ -137,47 +158,185 @@ static bool __init avx_usable(void) return true; } -#endif -static int __init sha512_ssse3_mod_init(void) +static int sha512_avx_update(struct shash_desc *desc, const u8 *data, + unsigned int len) { - /* test for SSSE3 first */ - if (cpu_has_ssse3) - sha512_transform_asm = sha512_transform_ssse3; + return sha512_update(desc, data, len, sha512_transform_avx); +} -#ifdef CONFIG_AS_AVX - /* allow AVX to override SSSE3, it's a little faster */ - if (avx_usable()) { -#ifdef CONFIG_AS_AVX2 - if (boot_cpu_has(X86_FEATURE_AVX2)) - sha512_transform_asm = sha512_transform_rorx; - else -#endif - sha512_transform_asm = sha512_transform_avx; +static int sha512_avx_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha512_finup(desc, data, len, out, sha512_transform_avx); +} + +/* Add padding and return the message digest. */ +static int sha512_avx_final(struct shash_desc *desc, u8 *out) +{ + return sha512_avx_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha512_avx_algs[] = { { + .digestsize = SHA512_DIGEST_SIZE, + .init = sha512_base_init, + .update = sha512_avx_update, + .final = sha512_avx_final, + .finup = sha512_avx_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha512", + .cra_driver_name = "sha512-avx", + .cra_priority = 160, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA512_BLOCK_SIZE, + .cra_module = THIS_MODULE, } -#endif +}, { + .digestsize = SHA384_DIGEST_SIZE, + .init = sha384_base_init, + .update = sha512_avx_update, + .final = sha512_avx_final, + .finup = sha512_avx_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha384", + .cra_driver_name = "sha384-avx", + .cra_priority = 160, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA384_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; - if (sha512_transform_asm) { -#ifdef CONFIG_AS_AVX - if (sha512_transform_asm == sha512_transform_avx) - pr_info("Using AVX optimized SHA-512 implementation\n"); -#ifdef CONFIG_AS_AVX2 - else if (sha512_transform_asm == sha512_transform_rorx) - pr_info("Using AVX2 optimized SHA-512 implementation\n"); +static int register_sha512_avx(void) +{ + if (avx_usable()) + return crypto_register_shashes(sha512_avx_algs, + ARRAY_SIZE(sha512_avx_algs)); + return 0; +} + +static void unregister_sha512_avx(void) +{ + if (avx_usable()) + crypto_unregister_shashes(sha512_avx_algs, + ARRAY_SIZE(sha512_avx_algs)); +} +#else +static inline int register_sha512_avx(void) { return 0; } +static inline void unregister_sha512_avx(void) { } #endif - else + +#if defined(CONFIG_AS_AVX2) && defined(CONFIG_AS_AVX) +asmlinkage void sha512_transform_rorx(u64 *digest, const char *data, + u64 rounds); + +static int sha512_avx2_update(struct shash_desc *desc, const u8 *data, + unsigned int len) +{ + return sha512_update(desc, data, len, sha512_transform_rorx); +} + +static int sha512_avx2_finup(struct shash_desc *desc, const u8 *data, + unsigned int len, u8 *out) +{ + return sha512_finup(desc, data, len, out, sha512_transform_rorx); +} + +/* Add padding and return the message digest. */ +static int sha512_avx2_final(struct shash_desc *desc, u8 *out) +{ + return sha512_avx2_finup(desc, NULL, 0, out); +} + +static struct shash_alg sha512_avx2_algs[] = { { + .digestsize = SHA512_DIGEST_SIZE, + .init = sha512_base_init, + .update = sha512_avx2_update, + .final = sha512_avx2_final, + .finup = sha512_avx2_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha512", + .cra_driver_name = "sha512-avx2", + .cra_priority = 170, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA512_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +}, { + .digestsize = SHA384_DIGEST_SIZE, + .init = sha384_base_init, + .update = sha512_avx2_update, + .final = sha512_avx2_final, + .finup = sha512_avx2_finup, + .descsize = sizeof(struct sha512_state), + .base = { + .cra_name = "sha384", + .cra_driver_name = "sha384-avx2", + .cra_priority = 170, + .cra_flags = CRYPTO_ALG_TYPE_SHASH, + .cra_blocksize = SHA384_BLOCK_SIZE, + .cra_module = THIS_MODULE, + } +} }; + +static bool avx2_usable(void) +{ + if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) && + boot_cpu_has(X86_FEATURE_BMI2)) + return true; + + return false; +} + +static int register_sha512_avx2(void) +{ + if (avx2_usable()) + return crypto_register_shashes(sha512_avx2_algs, + ARRAY_SIZE(sha512_avx2_algs)); + return 0; +} + +static void unregister_sha512_avx2(void) +{ + if (avx2_usable()) + crypto_unregister_shashes(sha512_avx2_algs, + ARRAY_SIZE(sha512_avx2_algs)); +} +#else +static inline int register_sha512_avx2(void) { return 0; } +static inline void unregister_sha512_avx2(void) { } #endif - pr_info("Using SSSE3 optimized SHA-512 implementation\n"); - return crypto_register_shashes(algs, ARRAY_SIZE(algs)); + +static int __init sha512_ssse3_mod_init(void) +{ + + if (register_sha512_ssse3()) + goto fail; + + if (register_sha512_avx()) { + unregister_sha512_ssse3(); + goto fail; } - pr_info("Neither AVX nor SSSE3 is available/usable.\n"); + if (register_sha512_avx2()) { + unregister_sha512_avx(); + unregister_sha512_ssse3(); + goto fail; + } + + return 0; +fail: return -ENODEV; } static void __exit sha512_ssse3_mod_fini(void) { - crypto_unregister_shashes(algs, ARRAY_SIZE(algs)); + unregister_sha512_avx2(); + unregister_sha512_avx(); + unregister_sha512_ssse3(); } module_init(sha512_ssse3_mod_init); |