arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c

   1 /*
   2  * Initialization code for multi buffer SHA256 algorithm for AVX2
   3  *
   4  * This file is provided under a dual BSD/GPLv2 license.  When using or
   5  * redistributing this file, you may do so under either license.
   6  *
   7  * GPL LICENSE SUMMARY
   8  *
   9  * Copyright(c) 2016 Intel Corporation.
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of version 2 of the GNU General Public License as
  13  * published by the Free Software Foundation.
  14  *
  15  * This program is distributed in the hope that it will be useful, but
  16  * WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * General Public License for more details.
  19  *
  20  * Contact Information:
  21  *     Megha Dey <megha.dey@linux.intel.com>
  22  *
  23  * BSD LICENSE
  24  *
  25  * Copyright(c) 2016 Intel Corporation.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  *
  31  *   * Redistributions of source code must retain the above copyright
  32  *     notice, this list of conditions and the following disclaimer.
  33  *   * Redistributions in binary form must reproduce the above copyright
  34  *     notice, this list of conditions and the following disclaimer in
  35  *     the documentation and/or other materials provided with the
  36  *     distribution.
  37  *   * Neither the name of Intel Corporation nor the names of its
  38  *     contributors may be used to endorse or promote products derived
  39  *     from this software without specific prior written permission.
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  42  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  43  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  44  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  45  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  46  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  47  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  48  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  49  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  50  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  51  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  52  */
  53
  54 #include "sha512_mb_mgr.h"
  55
  56 void sha512_mb_mgr_init_avx2(struct sha512_mb_mgr *state)
  57 {
  58         unsigned int j;
  59
  60         /* initially all lanes are unused */
  61         state->lens[0] = 0xFFFFFFFF00000000;
  62         state->lens[1] = 0xFFFFFFFF00000001;
  63         state->lens[2] = 0xFFFFFFFF00000002;
  64         state->lens[3] = 0xFFFFFFFF00000003;
  65
  66         state->unused_lanes = 0xFF03020100;
  67         for (j = 0; j < 4; j++)
  68                 state->ldata[j].job_in_lane = NULL;
  69 }