mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 14:14:01 +08:00
f24d6f2654
Pull x86 asm updates from Thomas Gleixner: "The lowlevel and ASM code updates for x86: - Make stack trace unwinding more reliable - ASM instruction updates for better code generation - Various cleanups" * 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/entry/64: Add two more instruction suffixes x86/asm/64: Use 32-bit XOR to zero registers x86/build/vdso: Simplify 'cmd_vdso2c' x86/build/vdso: Remove unused vdso-syms.lds x86/stacktrace: Enable HAVE_RELIABLE_STACKTRACE for the ORC unwinder x86/unwind/orc: Detect the end of the stack x86/stacktrace: Do not fail for ORC with regs on stack x86/stacktrace: Clarify the reliable success paths x86/stacktrace: Remove STACKTRACE_DUMP_ONCE x86/stacktrace: Do not unwind after user regs x86/asm: Use CC_SET/CC_OUT in percpu_cmpxchg8b_double() to micro-optimize code generation
623 lines
12 KiB
ArmAsm
623 lines
12 KiB
ArmAsm
/*
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* AVX2 implementation of MORUS-1280
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*
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* Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com>
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* Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/linkage.h>
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#include <asm/frame.h>
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#define SHUFFLE_MASK(i0, i1, i2, i3) \
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(i0 | (i1 << 2) | (i2 << 4) | (i3 << 6))
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#define MASK1 SHUFFLE_MASK(3, 0, 1, 2)
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#define MASK2 SHUFFLE_MASK(2, 3, 0, 1)
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#define MASK3 SHUFFLE_MASK(1, 2, 3, 0)
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#define STATE0 %ymm0
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#define STATE0_LOW %xmm0
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#define STATE1 %ymm1
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#define STATE2 %ymm2
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#define STATE3 %ymm3
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#define STATE4 %ymm4
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#define KEY %ymm5
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#define MSG %ymm5
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#define MSG_LOW %xmm5
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#define T0 %ymm6
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#define T0_LOW %xmm6
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#define T1 %ymm7
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.section .rodata.cst32.morus1280_const, "aM", @progbits, 32
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.align 32
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.Lmorus1280_const:
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.byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d
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.byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62
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.byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1
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.byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd
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.section .rodata.cst32.morus1280_counter, "aM", @progbits, 32
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.align 32
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.Lmorus1280_counter:
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.byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
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.byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
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.byte 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17
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.byte 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f
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.text
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.macro morus1280_round s0, s1, s2, s3, s4, b, w
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vpand \s1, \s2, T0
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vpxor T0, \s0, \s0
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vpxor \s3, \s0, \s0
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vpsllq $\b, \s0, T0
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vpsrlq $(64 - \b), \s0, \s0
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vpxor T0, \s0, \s0
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vpermq $\w, \s3, \s3
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.endm
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/*
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* __morus1280_update: internal ABI
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* input:
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* STATE[0-4] - input state
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* MSG - message block
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* output:
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* STATE[0-4] - output state
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* changed:
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* T0
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*/
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__morus1280_update:
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morus1280_round STATE0, STATE1, STATE2, STATE3, STATE4, 13, MASK1
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vpxor MSG, STATE1, STATE1
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morus1280_round STATE1, STATE2, STATE3, STATE4, STATE0, 46, MASK2
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vpxor MSG, STATE2, STATE2
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morus1280_round STATE2, STATE3, STATE4, STATE0, STATE1, 38, MASK3
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vpxor MSG, STATE3, STATE3
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morus1280_round STATE3, STATE4, STATE0, STATE1, STATE2, 7, MASK2
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vpxor MSG, STATE4, STATE4
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morus1280_round STATE4, STATE0, STATE1, STATE2, STATE3, 4, MASK1
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ret
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ENDPROC(__morus1280_update)
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/*
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* __morus1280_update_zero: internal ABI
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* input:
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* STATE[0-4] - input state
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* output:
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* STATE[0-4] - output state
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* changed:
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* T0
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*/
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__morus1280_update_zero:
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morus1280_round STATE0, STATE1, STATE2, STATE3, STATE4, 13, MASK1
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morus1280_round STATE1, STATE2, STATE3, STATE4, STATE0, 46, MASK2
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morus1280_round STATE2, STATE3, STATE4, STATE0, STATE1, 38, MASK3
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morus1280_round STATE3, STATE4, STATE0, STATE1, STATE2, 7, MASK2
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morus1280_round STATE4, STATE0, STATE1, STATE2, STATE3, 4, MASK1
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ret
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ENDPROC(__morus1280_update_zero)
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/*
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* __load_partial: internal ABI
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* input:
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* %rsi - src
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* %rcx - bytes
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* output:
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* MSG - message block
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* changed:
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* %r8
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* %r9
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*/
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__load_partial:
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xor %r9d, %r9d
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vpxor MSG, MSG, MSG
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mov %rcx, %r8
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and $0x1, %r8
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jz .Lld_partial_1
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mov %rcx, %r8
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and $0x1E, %r8
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add %rsi, %r8
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mov (%r8), %r9b
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.Lld_partial_1:
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mov %rcx, %r8
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and $0x2, %r8
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jz .Lld_partial_2
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mov %rcx, %r8
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and $0x1C, %r8
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add %rsi, %r8
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shl $16, %r9
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mov (%r8), %r9w
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.Lld_partial_2:
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mov %rcx, %r8
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and $0x4, %r8
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jz .Lld_partial_4
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mov %rcx, %r8
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and $0x18, %r8
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add %rsi, %r8
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shl $32, %r9
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mov (%r8), %r8d
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xor %r8, %r9
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.Lld_partial_4:
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movq %r9, MSG_LOW
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mov %rcx, %r8
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and $0x8, %r8
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jz .Lld_partial_8
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mov %rcx, %r8
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and $0x10, %r8
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add %rsi, %r8
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pshufd $MASK2, MSG_LOW, MSG_LOW
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pinsrq $0, (%r8), MSG_LOW
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.Lld_partial_8:
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mov %rcx, %r8
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and $0x10, %r8
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jz .Lld_partial_16
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vpermq $MASK2, MSG, MSG
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movdqu (%rsi), MSG_LOW
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.Lld_partial_16:
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ret
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ENDPROC(__load_partial)
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/*
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* __store_partial: internal ABI
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* input:
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* %rdx - dst
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* %rcx - bytes
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* output:
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* T0 - message block
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* changed:
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* %r8
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* %r9
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* %r10
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*/
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__store_partial:
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mov %rcx, %r8
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mov %rdx, %r9
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cmp $16, %r8
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jl .Lst_partial_16
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movdqu T0_LOW, (%r9)
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vpermq $MASK2, T0, T0
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sub $16, %r8
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add $16, %r9
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.Lst_partial_16:
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movq T0_LOW, %r10
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cmp $8, %r8
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jl .Lst_partial_8
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mov %r10, (%r9)
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pextrq $1, T0_LOW, %r10
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sub $8, %r8
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add $8, %r9
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.Lst_partial_8:
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cmp $4, %r8
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jl .Lst_partial_4
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mov %r10d, (%r9)
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shr $32, %r10
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sub $4, %r8
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add $4, %r9
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.Lst_partial_4:
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cmp $2, %r8
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jl .Lst_partial_2
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mov %r10w, (%r9)
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shr $16, %r10
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sub $2, %r8
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add $2, %r9
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.Lst_partial_2:
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cmp $1, %r8
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jl .Lst_partial_1
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mov %r10b, (%r9)
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.Lst_partial_1:
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ret
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ENDPROC(__store_partial)
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/*
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* void crypto_morus1280_avx2_init(void *state, const void *key,
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* const void *iv);
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*/
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ENTRY(crypto_morus1280_avx2_init)
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FRAME_BEGIN
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/* load IV: */
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vpxor STATE0, STATE0, STATE0
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movdqu (%rdx), STATE0_LOW
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/* load key: */
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vmovdqu (%rsi), KEY
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vmovdqa KEY, STATE1
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/* load all ones: */
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vpcmpeqd STATE2, STATE2, STATE2
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/* load all zeros: */
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vpxor STATE3, STATE3, STATE3
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/* load the constant: */
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vmovdqa .Lmorus1280_const, STATE4
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/* update 16 times with zero: */
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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call __morus1280_update_zero
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/* xor-in the key again after updates: */
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vpxor KEY, STATE1, STATE1
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/* store the state: */
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vmovdqu STATE0, (0 * 32)(%rdi)
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vmovdqu STATE1, (1 * 32)(%rdi)
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vmovdqu STATE2, (2 * 32)(%rdi)
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vmovdqu STATE3, (3 * 32)(%rdi)
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vmovdqu STATE4, (4 * 32)(%rdi)
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FRAME_END
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ret
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ENDPROC(crypto_morus1280_avx2_init)
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/*
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* void crypto_morus1280_avx2_ad(void *state, const void *data,
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* unsigned int length);
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*/
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ENTRY(crypto_morus1280_avx2_ad)
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FRAME_BEGIN
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cmp $32, %rdx
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jb .Lad_out
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/* load the state: */
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vmovdqu (0 * 32)(%rdi), STATE0
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vmovdqu (1 * 32)(%rdi), STATE1
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vmovdqu (2 * 32)(%rdi), STATE2
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vmovdqu (3 * 32)(%rdi), STATE3
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vmovdqu (4 * 32)(%rdi), STATE4
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mov %rsi, %r8
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and $0x1F, %r8
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jnz .Lad_u_loop
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.align 4
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.Lad_a_loop:
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vmovdqa (%rsi), MSG
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call __morus1280_update
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sub $32, %rdx
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add $32, %rsi
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cmp $32, %rdx
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jge .Lad_a_loop
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jmp .Lad_cont
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.align 4
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.Lad_u_loop:
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vmovdqu (%rsi), MSG
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call __morus1280_update
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sub $32, %rdx
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add $32, %rsi
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cmp $32, %rdx
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jge .Lad_u_loop
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.Lad_cont:
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/* store the state: */
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vmovdqu STATE0, (0 * 32)(%rdi)
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vmovdqu STATE1, (1 * 32)(%rdi)
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vmovdqu STATE2, (2 * 32)(%rdi)
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vmovdqu STATE3, (3 * 32)(%rdi)
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vmovdqu STATE4, (4 * 32)(%rdi)
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.Lad_out:
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FRAME_END
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ret
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ENDPROC(crypto_morus1280_avx2_ad)
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/*
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* void crypto_morus1280_avx2_enc(void *state, const void *src, void *dst,
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* unsigned int length);
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*/
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ENTRY(crypto_morus1280_avx2_enc)
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FRAME_BEGIN
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cmp $32, %rcx
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jb .Lenc_out
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/* load the state: */
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vmovdqu (0 * 32)(%rdi), STATE0
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vmovdqu (1 * 32)(%rdi), STATE1
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vmovdqu (2 * 32)(%rdi), STATE2
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vmovdqu (3 * 32)(%rdi), STATE3
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vmovdqu (4 * 32)(%rdi), STATE4
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mov %rsi, %r8
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or %rdx, %r8
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and $0x1F, %r8
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jnz .Lenc_u_loop
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.align 4
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.Lenc_a_loop:
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vmovdqa (%rsi), MSG
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vmovdqa MSG, T0
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vpxor STATE0, T0, T0
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vpermq $MASK3, STATE1, T1
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vpxor T1, T0, T0
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vpand STATE2, STATE3, T1
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vpxor T1, T0, T0
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vmovdqa T0, (%rdx)
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call __morus1280_update
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sub $32, %rcx
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add $32, %rsi
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add $32, %rdx
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cmp $32, %rcx
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jge .Lenc_a_loop
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jmp .Lenc_cont
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.align 4
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.Lenc_u_loop:
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vmovdqu (%rsi), MSG
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vmovdqa MSG, T0
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vpxor STATE0, T0, T0
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vpermq $MASK3, STATE1, T1
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vpxor T1, T0, T0
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vpand STATE2, STATE3, T1
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vpxor T1, T0, T0
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vmovdqu T0, (%rdx)
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call __morus1280_update
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sub $32, %rcx
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add $32, %rsi
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add $32, %rdx
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cmp $32, %rcx
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jge .Lenc_u_loop
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.Lenc_cont:
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/* store the state: */
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vmovdqu STATE0, (0 * 32)(%rdi)
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vmovdqu STATE1, (1 * 32)(%rdi)
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vmovdqu STATE2, (2 * 32)(%rdi)
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vmovdqu STATE3, (3 * 32)(%rdi)
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vmovdqu STATE4, (4 * 32)(%rdi)
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.Lenc_out:
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FRAME_END
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ret
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ENDPROC(crypto_morus1280_avx2_enc)
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/*
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* void crypto_morus1280_avx2_enc_tail(void *state, const void *src, void *dst,
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* unsigned int length);
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*/
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ENTRY(crypto_morus1280_avx2_enc_tail)
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FRAME_BEGIN
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/* load the state: */
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vmovdqu (0 * 32)(%rdi), STATE0
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vmovdqu (1 * 32)(%rdi), STATE1
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vmovdqu (2 * 32)(%rdi), STATE2
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vmovdqu (3 * 32)(%rdi), STATE3
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vmovdqu (4 * 32)(%rdi), STATE4
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/* encrypt message: */
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call __load_partial
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vmovdqa MSG, T0
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vpxor STATE0, T0, T0
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vpermq $MASK3, STATE1, T1
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vpxor T1, T0, T0
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vpand STATE2, STATE3, T1
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vpxor T1, T0, T0
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call __store_partial
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call __morus1280_update
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/* store the state: */
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vmovdqu STATE0, (0 * 32)(%rdi)
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vmovdqu STATE1, (1 * 32)(%rdi)
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vmovdqu STATE2, (2 * 32)(%rdi)
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vmovdqu STATE3, (3 * 32)(%rdi)
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vmovdqu STATE4, (4 * 32)(%rdi)
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FRAME_END
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ret
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ENDPROC(crypto_morus1280_avx2_enc_tail)
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/*
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* void crypto_morus1280_avx2_dec(void *state, const void *src, void *dst,
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* unsigned int length);
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*/
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ENTRY(crypto_morus1280_avx2_dec)
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FRAME_BEGIN
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cmp $32, %rcx
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jb .Ldec_out
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/* load the state: */
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vmovdqu (0 * 32)(%rdi), STATE0
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vmovdqu (1 * 32)(%rdi), STATE1
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vmovdqu (2 * 32)(%rdi), STATE2
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vmovdqu (3 * 32)(%rdi), STATE3
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vmovdqu (4 * 32)(%rdi), STATE4
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mov %rsi, %r8
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or %rdx, %r8
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and $0x1F, %r8
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jnz .Ldec_u_loop
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.align 4
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.Ldec_a_loop:
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vmovdqa (%rsi), MSG
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vpxor STATE0, MSG, MSG
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vpermq $MASK3, STATE1, T0
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vpxor T0, MSG, MSG
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vpand STATE2, STATE3, T0
|
|
vpxor T0, MSG, MSG
|
|
vmovdqa MSG, (%rdx)
|
|
|
|
call __morus1280_update
|
|
sub $32, %rcx
|
|
add $32, %rsi
|
|
add $32, %rdx
|
|
cmp $32, %rcx
|
|
jge .Ldec_a_loop
|
|
|
|
jmp .Ldec_cont
|
|
.align 4
|
|
.Ldec_u_loop:
|
|
vmovdqu (%rsi), MSG
|
|
vpxor STATE0, MSG, MSG
|
|
vpermq $MASK3, STATE1, T0
|
|
vpxor T0, MSG, MSG
|
|
vpand STATE2, STATE3, T0
|
|
vpxor T0, MSG, MSG
|
|
vmovdqu MSG, (%rdx)
|
|
|
|
call __morus1280_update
|
|
sub $32, %rcx
|
|
add $32, %rsi
|
|
add $32, %rdx
|
|
cmp $32, %rcx
|
|
jge .Ldec_u_loop
|
|
|
|
.Ldec_cont:
|
|
/* store the state: */
|
|
vmovdqu STATE0, (0 * 32)(%rdi)
|
|
vmovdqu STATE1, (1 * 32)(%rdi)
|
|
vmovdqu STATE2, (2 * 32)(%rdi)
|
|
vmovdqu STATE3, (3 * 32)(%rdi)
|
|
vmovdqu STATE4, (4 * 32)(%rdi)
|
|
|
|
.Ldec_out:
|
|
FRAME_END
|
|
ret
|
|
ENDPROC(crypto_morus1280_avx2_dec)
|
|
|
|
/*
|
|
* void crypto_morus1280_avx2_dec_tail(void *state, const void *src, void *dst,
|
|
* unsigned int length);
|
|
*/
|
|
ENTRY(crypto_morus1280_avx2_dec_tail)
|
|
FRAME_BEGIN
|
|
|
|
/* load the state: */
|
|
vmovdqu (0 * 32)(%rdi), STATE0
|
|
vmovdqu (1 * 32)(%rdi), STATE1
|
|
vmovdqu (2 * 32)(%rdi), STATE2
|
|
vmovdqu (3 * 32)(%rdi), STATE3
|
|
vmovdqu (4 * 32)(%rdi), STATE4
|
|
|
|
/* decrypt message: */
|
|
call __load_partial
|
|
|
|
vpxor STATE0, MSG, MSG
|
|
vpermq $MASK3, STATE1, T0
|
|
vpxor T0, MSG, MSG
|
|
vpand STATE2, STATE3, T0
|
|
vpxor T0, MSG, MSG
|
|
vmovdqa MSG, T0
|
|
|
|
call __store_partial
|
|
|
|
/* mask with byte count: */
|
|
movq %rcx, T0_LOW
|
|
vpbroadcastb T0_LOW, T0
|
|
vmovdqa .Lmorus1280_counter, T1
|
|
vpcmpgtb T1, T0, T0
|
|
vpand T0, MSG, MSG
|
|
|
|
call __morus1280_update
|
|
|
|
/* store the state: */
|
|
vmovdqu STATE0, (0 * 32)(%rdi)
|
|
vmovdqu STATE1, (1 * 32)(%rdi)
|
|
vmovdqu STATE2, (2 * 32)(%rdi)
|
|
vmovdqu STATE3, (3 * 32)(%rdi)
|
|
vmovdqu STATE4, (4 * 32)(%rdi)
|
|
|
|
FRAME_END
|
|
ret
|
|
ENDPROC(crypto_morus1280_avx2_dec_tail)
|
|
|
|
/*
|
|
* void crypto_morus1280_avx2_final(void *state, void *tag_xor,
|
|
* u64 assoclen, u64 cryptlen);
|
|
*/
|
|
ENTRY(crypto_morus1280_avx2_final)
|
|
FRAME_BEGIN
|
|
|
|
/* load the state: */
|
|
vmovdqu (0 * 32)(%rdi), STATE0
|
|
vmovdqu (1 * 32)(%rdi), STATE1
|
|
vmovdqu (2 * 32)(%rdi), STATE2
|
|
vmovdqu (3 * 32)(%rdi), STATE3
|
|
vmovdqu (4 * 32)(%rdi), STATE4
|
|
|
|
/* xor state[0] into state[4]: */
|
|
vpxor STATE0, STATE4, STATE4
|
|
|
|
/* prepare length block: */
|
|
vpxor MSG, MSG, MSG
|
|
vpinsrq $0, %rdx, MSG_LOW, MSG_LOW
|
|
vpinsrq $1, %rcx, MSG_LOW, MSG_LOW
|
|
vpsllq $3, MSG, MSG /* multiply by 8 (to get bit count) */
|
|
|
|
/* update state: */
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
call __morus1280_update
|
|
|
|
/* xor tag: */
|
|
vmovdqu (%rsi), MSG
|
|
|
|
vpxor STATE0, MSG, MSG
|
|
vpermq $MASK3, STATE1, T0
|
|
vpxor T0, MSG, MSG
|
|
vpand STATE2, STATE3, T0
|
|
vpxor T0, MSG, MSG
|
|
vmovdqu MSG, (%rsi)
|
|
|
|
FRAME_END
|
|
ret
|
|
ENDPROC(crypto_morus1280_avx2_final)
|