h_io_assist_asm.S revision 1.2
1 /* $NetBSD: h_io_assist_asm.S,v 1.2 2019/03/19 19:23:39 maxv Exp $ */ 2 3 /* 4 * Copyright (c) 2019 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Maxime Villard. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 .globl test1_begin, test1_end 33 .globl test2_begin, test2_end 34 .globl test3_begin, test3_end 35 .globl test4_begin, test4_end 36 .globl test5_begin, test5_end 37 .globl test6_begin, test6_end 38 .globl test7_begin, test7_end 39 .globl test8_begin, test8_end 40 .globl test9_begin, test9_end 41 .globl test10_begin, test10_end 42 .globl test11_begin, test11_end 43 .globl test12_begin, test12_end 44 .text 45 .code64 46 47 #define TEST_END \ 48 movq $0xFFFFFFFFFFFFFFFF,%rcx; \ 49 rdmsr ; 50 51 /* 52 * IN 53 */ 54 55 .align 64 56 test1_begin: 57 movq $0x1000,%rbx 58 59 inb $123 60 movb %al,(%rbx) 61 incq %rbx 62 63 movq $123,%rdx 64 inb %dx 65 movb %al,(%rbx) 66 67 TEST_END 68 test1_end: 69 70 .align 64 71 test2_begin: 72 movq $0x1000,%rbx 73 74 inw $123 75 movw %ax,(%rbx) 76 addq $2,%rbx 77 78 movq $123,%rdx 79 inw %dx 80 movw %ax,(%rbx) 81 82 TEST_END 83 test2_end: 84 85 .align 64 86 test3_begin: 87 movq $0x1000,%rbx 88 89 inl $123 90 movl %eax,(%rbx) 91 addq $4,%rbx 92 93 movq $123,%rdx 94 inl %dx 95 movl %eax,(%rbx) 96 97 TEST_END 98 test3_end: 99 100 .align 64 101 test4_begin: 102 movq $0x1000,%rdi 103 movq $5,%rcx 104 105 movq $123,%rdx 106 rep 107 insb 108 109 TEST_END 110 test4_end: 111 112 .align 64 113 test5_begin: 114 movq $0x1000,%rdi 115 movq $14,%rcx 116 117 movq $123,%rdx 118 rep 119 insw 120 121 TEST_END 122 test5_end: 123 124 .align 64 125 test6_begin: 126 movq $0x1000,%rdi 127 movq $7,%rcx 128 129 movq $123,%rdx 130 rep 131 insl 132 133 TEST_END 134 test6_end: 135 136 /* 137 * OUT 138 */ 139 140 .align 64 141 test7_begin: 142 movq $0x1000,%rbx 143 144 movb (%rbx),%al 145 outb $123 146 incq %rbx 147 148 movb (%rbx),%al 149 movq $123,%rdx 150 outb %dx 151 152 TEST_END 153 test7_end: 154 155 .align 64 156 test8_begin: 157 movq $0x1000,%rbx 158 159 movw (%rbx),%ax 160 outw $123 161 addq $2,%rbx 162 163 movw (%rbx),%ax 164 movq $123,%rdx 165 outw %dx 166 167 TEST_END 168 test8_end: 169 170 .align 64 171 test9_begin: 172 movq $0x1000,%rbx 173 174 movl (%rbx),%eax 175 outl $123 176 addq $4,%rbx 177 178 movl (%rbx),%eax 179 movq $123,%rdx 180 outl %dx 181 182 TEST_END 183 test9_end: 184 185 .align 64 186 test10_begin: 187 movq $0x1000,%rsi 188 movq $5,%rcx 189 190 movq $123,%rdx 191 rep 192 outsb 193 194 TEST_END 195 test10_end: 196 197 .align 64 198 test11_begin: 199 movq $0x1000,%rsi 200 movq $8,%rcx 201 202 movq $123,%rdx 203 rep 204 outsw 205 206 TEST_END 207 test11_end: 208 209 .align 64 210 test12_begin: 211 movq $0x1000,%rsi 212 movq $7,%rcx 213 214 movq $123,%rdx 215 rep 216 outsl 217 218 TEST_END 219 test12_end: 220
Indexes created Mon Sep 29 21:09:56 GMT 2025