summaryrefslogtreecommitdiff
path: root/arch/x86/crypto/sha1_ni_asm.S
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/crypto/sha1_ni_asm.S')
-rw-r--r--arch/x86/crypto/sha1_ni_asm.S304
1 files changed, 0 insertions, 304 deletions
diff --git a/arch/x86/crypto/sha1_ni_asm.S b/arch/x86/crypto/sha1_ni_asm.S
deleted file mode 100644
index cade913d4882..000000000000
--- a/arch/x86/crypto/sha1_ni_asm.S
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * 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>
-#include <linux/cfi_types.h>
-
-#define DIGEST_PTR %rdi /* 1st arg */
-#define DATA_PTR %rsi /* 2nd arg */
-#define NUM_BLKS %rdx /* 3rd arg */
-
-/* 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
-SYM_TYPED_FUNC_START(sha1_ni_transform)
- push %rbp
- mov %rsp, %rbp
- 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 %rbp, %rsp
- pop %rbp
-
- RET
-SYM_FUNC_END(sha1_ni_transform)
-
-.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
-.align 16
-PSHUFFLE_BYTE_FLIP_MASK:
- .octa 0x000102030405060708090a0b0c0d0e0f
-
-.section .rodata.cst16.UPPER_WORD_MASK, "aM", @progbits, 16
-.align 16
-UPPER_WORD_MASK:
- .octa 0xFFFFFFFF000000000000000000000000