/* $NetBSD: h_io_assist_asm.S,v 1.3 2020/09/05 07:22:26 maxv Exp $ */

/* $NetBSD: h_io_assist_asm.S,v 1.3 2020/09/05 07:22:26 maxv Exp $ */

/*
* Copyright (c) 2019-2020 Maxime Villard, m00nbsd.net
* All rights reserved.
*
* This code is part of the NVMM hypervisor.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/

.globl test1_begin, test1_end
.globl test2_begin, test2_end
.globl test3_begin, test3_end
.globl test4_begin, test4_end
.globl test5_begin, test5_end
.globl test6_begin, test6_end
.globl test7_begin, test7_end
.globl test8_begin, test8_end
.globl test9_begin, test9_end
.globl test10_begin, test10_end
.globl test11_begin, test11_end
.globl test12_begin, test12_end
.text
.code64

#define TEST_END \
movq $0xFFFFFFFFFFFFFFFF,%rcx; \
rdmsr ;

/*
* IN
*/

.align 64
test1_begin:
movq $0x1000,%rbx

inb $123
movb %al,(%rbx)
incq %rbx

movq $123,%rdx
inb %dx
movb %al,(%rbx)

TEST_END
test1_end:

.align 64
test2_begin:
movq $0x1000,%rbx

inw $123
movw %ax,(%rbx)
addq $2,%rbx

movq $123,%rdx
inw %dx
movw %ax,(%rbx)

TEST_END
test2_end:

.align 64
test3_begin:
movq $0x1000,%rbx

inl $123
movl %eax,(%rbx)
addq $4,%rbx

movq $123,%rdx
inl %dx
movl %eax,(%rbx)

TEST_END
test3_end:

.align 64
test4_begin:
movq $0x1000,%rdi
movq $5,%rcx

movq $123,%rdx
rep
insb

TEST_END
test4_end:

.align 64
test5_begin:
movq $0x1000,%rdi
movq $14,%rcx

movq $123,%rdx
rep
insw

TEST_END
test5_end:

.align 64
test6_begin:
movq $0x1000,%rdi
movq $7,%rcx

movq $123,%rdx
rep
insl

TEST_END
test6_end:

/*
* OUT
*/

.align 64
test7_begin:
movq $0x1000,%rbx

movb (%rbx),%al
outb $123
incq %rbx

movb (%rbx),%al
movq $123,%rdx
outb %dx

TEST_END
test7_end:

.align 64
test8_begin:
movq $0x1000,%rbx

movw (%rbx),%ax
outw $123
addq $2,%rbx

movw (%rbx),%ax
movq $123,%rdx
outw %dx

TEST_END
test8_end:

.align 64
test9_begin:
movq $0x1000,%rbx

movl (%rbx),%eax
outl $123
addq $4,%rbx

movl (%rbx),%eax
movq $123,%rdx
outl %dx

TEST_END
test9_end:

.align 64
test10_begin:
movq $0x1000,%rsi
movq $5,%rcx

movq $123,%rdx
rep
outsb

TEST_END
test10_end:

.align 64
test11_begin:
movq $0x1000,%rsi
movq $8,%rcx

movq $123,%rdx
rep
outsw

TEST_END
test11_end:

.align 64
test12_begin:
movq $0x1000,%rsi
movq $7,%rcx

movq $123,%rdx
rep
outsl

TEST_END
test12_end: