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/*
* Header file for multi buffer SHA256 algorithm data structure
*
* 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) 2016 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:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 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.
*/
# Macros for defining data structures
# Usage example
#START_FIELDS # JOB_AES
### name size align
#FIELD _plaintext, 8, 8 # pointer to plaintext
#FIELD _ciphertext, 8, 8 # pointer to ciphertext
#FIELD _IV, 16, 8 # IV
#FIELD _keys, 8, 8 # pointer to keys
#FIELD _len, 4, 4 # length in bytes
#FIELD _status, 4, 4 # status enumeration
#FIELD _user_data, 8, 8 # pointer to user data
#UNION _union, size1, align1, \
# size2, align2, \
# size3, align3, \
# ...
#END_FIELDS
#%assign _JOB_AES_size _FIELD_OFFSET
#%assign _JOB_AES_align _STRUCT_ALIGN
#########################################################################
# Alternate "struc-like" syntax:
# STRUCT job_aes2
# RES_Q .plaintext, 1
# RES_Q .ciphertext, 1
# RES_DQ .IV, 1
# RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN
# RES_U .union, size1, align1, \
# size2, align2, \
# ...
# ENDSTRUCT
# # Following only needed if nesting
# %assign job_aes2_size _FIELD_OFFSET
# %assign job_aes2_align _STRUCT_ALIGN
#
# RES_* macros take a name, a count and an optional alignment.
# The count in in terms of the base size of the macro, and the
# default alignment is the base size.
# The macros are:
# Macro Base size
# RES_B 1
# RES_W 2
# RES_D 4
# RES_Q 8
# RES_DQ 16
# RES_Y 32
# RES_Z 64
#
# RES_U defines a union. It's arguments are a name and two or more
# pairs of "size, alignment"
#
# The two assigns are only needed if this structure is being nested
# within another. Even if the assigns are not done, one can still use
# STRUCT_NAME_size as the size of the structure.
#
# Note that for nesting, you still need to assign to STRUCT_NAME_size.
#
# The differences between this and using "struc" directly are that each
# type is implicitly aligned to its natural length (although this can be
# over-ridden with an explicit third parameter), and that the structure
# is padded at the end to its overall alignment.
#
#########################################################################
#ifndef _DATASTRUCT_ASM_
#define _DATASTRUCT_ASM_
#define PTR_SZ 8
#define SHA512_DIGEST_WORD_SIZE 8
#define SHA512_MB_MGR_NUM_LANES_AVX2 4
#define NUM_SHA512_DIGEST_WORDS 8
#define SZ4 4*SHA512_DIGEST_WORD_SIZE
#define ROUNDS 80*SZ4
#define SHA512_DIGEST_ROW_SIZE (SHA512_MB_MGR_NUM_LANES_AVX2 * 8)
# START_FIELDS
.macro START_FIELDS
_FIELD_OFFSET = 0
_STRUCT_ALIGN = 0
.endm
# FIELD name size align
.macro FIELD name size align
_FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1))
\name = _FIELD_OFFSET
_FIELD_OFFSET = _FIELD_OFFSET + (\size)
.if (\align > _STRUCT_ALIGN)
_STRUCT_ALIGN = \align
.endif
.endm
# END_FIELDS
.macro END_FIELDS
_FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1))
.endm
.macro STRUCT p1
START_FIELDS
.struc \p1
.endm
.macro ENDSTRUCT
tmp = _FIELD_OFFSET
END_FIELDS
tmp = (_FIELD_OFFSET - ##tmp)
.if (tmp > 0)
.lcomm tmp
.endm
## RES_int name size align
.macro RES_int p1 p2 p3
name = \p1
size = \p2
align = .\p3
_FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1))
.align align
.lcomm name size
_FIELD_OFFSET = _FIELD_OFFSET + (size)
.if (align > _STRUCT_ALIGN)
_STRUCT_ALIGN = align
.endif
.endm
# macro RES_B name, size [, align]
.macro RES_B _name, _size, _align=1
RES_int _name _size _align
.endm
# macro RES_W name, size [, align]
.macro RES_W _name, _size, _align=2
RES_int _name 2*(_size) _align
.endm
# macro RES_D name, size [, align]
.macro RES_D _name, _size, _align=4
RES_int _name 4*(_size) _align
.endm
# macro RES_Q name, size [, align]
.macro RES_Q _name, _size, _align=8
RES_int _name 8*(_size) _align
.endm
# macro RES_DQ name, size [, align]
.macro RES_DQ _name, _size, _align=16
RES_int _name 16*(_size) _align
.endm
# macro RES_Y name, size [, align]
.macro RES_Y _name, _size, _align=32
RES_int _name 32*(_size) _align
.endm
# macro RES_Z name, size [, align]
.macro RES_Z _name, _size, _align=64
RES_int _name 64*(_size) _align
.endm
#endif
###################################################################
### Define SHA512 Out Of Order Data Structures
###################################################################
START_FIELDS # LANE_DATA
### name size align
FIELD _job_in_lane, 8, 8 # pointer to job object
END_FIELDS
_LANE_DATA_size = _FIELD_OFFSET
_LANE_DATA_align = _STRUCT_ALIGN
####################################################################
START_FIELDS # SHA512_ARGS_X4
### name size align
FIELD _digest, 8*8*4, 4 # transposed digest
FIELD _data_ptr, 8*4, 8 # array of pointers to data
END_FIELDS
_SHA512_ARGS_X4_size = _FIELD_OFFSET
_SHA512_ARGS_X4_align = _STRUCT_ALIGN
#####################################################################
START_FIELDS # MB_MGR
### name size align
FIELD _args, _SHA512_ARGS_X4_size, _SHA512_ARGS_X4_align
FIELD _lens, 8*4, 8
FIELD _unused_lanes, 8, 8
FIELD _ldata, _LANE_DATA_size*4, _LANE_DATA_align
END_FIELDS
_MB_MGR_size = _FIELD_OFFSET
_MB_MGR_align = _STRUCT_ALIGN
_args_digest = _args + _digest
_args_data_ptr = _args + _data_ptr
#######################################################################
#######################################################################
#### Define constants
#######################################################################
#define STS_UNKNOWN 0
#define STS_BEING_PROCESSED 1
#define STS_COMPLETED 2
#######################################################################
#### Define JOB_SHA512 structure
#######################################################################
START_FIELDS # JOB_SHA512
### name size align
FIELD _buffer, 8, 8 # pointer to buffer
FIELD _len, 8, 8 # length in bytes
FIELD _result_digest, 8*8, 32 # Digest (output)
FIELD _status, 4, 4
FIELD _user_data, 8, 8
END_FIELDS
_JOB_SHA512_size = _FIELD_OFFSET
_JOB_SHA512_align = _STRUCT_ALIGN
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