/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Implement AES algorithm in Intel AES-NI instructions.
*
* The white paper of AES-NI instructions can be downloaded from:
* http://softwarecommunity.intel.com/isn/downloads/intelavx/AES-Instructions-Set_WP.pdf
*
* Copyright (C) 2008, Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
* Vinodh Gopal <vinodh.gopal@intel.com>
* Kahraman Akdemir
*
* Copyright (c) 2010, Intel Corporation.
*
* Ported x86_64 version to x86:
* Author: Mathias Krause <minipli@googlemail.com>
*/
#include <linux/linkage.h>
#include <asm/frame.h>
#define STATE1 %xmm0
#define STATE2 %xmm4
#define STATE3 %xmm5
#define STATE4 %xmm6
#define STATE STATE1
#define IN1 %xmm1
#define IN2 %xmm7
#define IN3 %xmm8
#define IN4 %xmm9
#define IN IN1
#define KEY %xmm2
#define IV %xmm3
#define BSWAP_MASK %xmm10
#define CTR %xmm11
#define INC %xmm12
#define GF128MUL_MASK %xmm7
#ifdef __x86_64__
#define AREG %rax
#define KEYP %rdi
#define OUTP %rsi
#define UKEYP OUTP
#define INP %rdx
#define LEN %rcx
#define IVP %r8
#define KLEN %r9d
#define T1 %r10
#define TKEYP T1
#define T2 %r11
#define TCTR_LOW T2
#else
#define AREG %eax
#define KEYP %edi
#define OUTP AREG
#define UKEYP OUTP
#define INP %edx
#define LEN %esi
#define IVP %ebp
#define KLEN %ebx
#define T1 %ecx
#define TKEYP T1
#endif
SYM_FUNC_START_LOCAL(_key_expansion_256a)
pshufd $0b11111111, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
shufps $0b10001100, %xmm0, %xmm4
pxor %xmm4, %xmm0
pxor %xmm1, %xmm0
movaps %xmm0, (TKEYP)
add $0x10, TKEYP
RET
SYM_FUNC_END(_key_expansion_256a)
SYM_FUNC_ALIAS_LOCAL(_key_expansion_128, _key_expansion_256a)
SYM_FUNC_START_LOCAL(_key_expansion_192a)
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
shufps $0b10001100, %xmm0, %xmm4
pxor %xmm4, %xmm0
pxor %xmm1, %xmm0
movaps %xmm2, %xmm5
movaps %xmm2, %xmm6
pslldq $4, %xmm5
pshufd $0b11111111, %xmm0, %xmm3
pxor %xmm3, %xmm2
pxor %xmm5, %xmm2
movaps %xmm0, %xmm1
shufps $0b01000100, %xmm0, %xmm6
movaps %xmm6, (TKEYP)
shufps $0b01001110, %xmm2, %xmm1
movaps %xmm1, 0x10(TKEYP)
add $0x20, TKEYP
RET
SYM_FUNC_END(_key_expansion_192a)
SYM_FUNC_START_LOCAL(_key_expansion_192b)
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
shufps $0b10001100, %xmm0, %xmm4
pxor %xmm4, %xmm0
pxor %xmm1, %xmm0
movaps %xmm2, %xmm5
pslldq $4, %xmm5
pshufd $0b11111111, %xmm0, %xmm3
pxor %xmm3, %xmm2
pxor %xmm5, %xmm2
movaps %xmm0, (TKEYP)
add $0x10, TKEYP
RET
SYM_FUNC_END(
