1*5d9d9091SRichard Lowe/* 2*5d9d9091SRichard Lowe * CDDL HEADER START 3*5d9d9091SRichard Lowe * 4*5d9d9091SRichard Lowe * The contents of this file are subject to the terms of the 5*5d9d9091SRichard Lowe * Common Development and Distribution License (the "License"). 6*5d9d9091SRichard Lowe * You may not use this file except in compliance with the License. 7*5d9d9091SRichard Lowe * 8*5d9d9091SRichard Lowe * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*5d9d9091SRichard Lowe * or http://www.opensolaris.org/os/licensing. 10*5d9d9091SRichard Lowe * See the License for the specific language governing permissions 11*5d9d9091SRichard Lowe * and limitations under the License. 12*5d9d9091SRichard Lowe * 13*5d9d9091SRichard Lowe * When distributing Covered Code, include this CDDL HEADER in each 14*5d9d9091SRichard Lowe * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*5d9d9091SRichard Lowe * If applicable, add the following below this CDDL HEADER, with the 16*5d9d9091SRichard Lowe * fields enclosed by brackets "[]" replaced with your own identifying 17*5d9d9091SRichard Lowe * information: Portions Copyright [yyyy] [name of copyright owner] 18*5d9d9091SRichard Lowe * 19*5d9d9091SRichard Lowe * CDDL HEADER END 20*5d9d9091SRichard Lowe */ 21*5d9d9091SRichard Lowe 22*5d9d9091SRichard Lowe/* 23*5d9d9091SRichard Lowe * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24*5d9d9091SRichard Lowe * Use is subject to license terms. 25*5d9d9091SRichard Lowe */ 26*5d9d9091SRichard Lowe 27*5d9d9091SRichard Lowe#include <sys/asm_linkage.h> 28*5d9d9091SRichard Lowe#include <sys/asm_misc.h> 29*5d9d9091SRichard Lowe 30*5d9d9091SRichard Lowe#if defined(__amd64) 31*5d9d9091SRichard Lowe 32*5d9d9091SRichard Lowe /* 33*5d9d9091SRichard Lowe * do a cpuid instruction, returning the eax/edx values 34*5d9d9091SRichard Lowe * 35*5d9d9091SRichard Lowe * uint32_t get_cpuid_edx(uint32_t *eax) 36*5d9d9091SRichard Lowe */ 37*5d9d9091SRichard Lowe ENTRY_NP(get_cpuid_edx) 38*5d9d9091SRichard Lowe pushq %rbx 39*5d9d9091SRichard Lowe movl (%rdi), %eax 40*5d9d9091SRichard Lowe cpuid 41*5d9d9091SRichard Lowe movl %eax, (%rdi) 42*5d9d9091SRichard Lowe movl %edx, %eax 43*5d9d9091SRichard Lowe popq %rbx 44*5d9d9091SRichard Lowe ret 45*5d9d9091SRichard Lowe SET_SIZE(get_cpuid_edx) 46*5d9d9091SRichard Lowe 47*5d9d9091SRichard Lowe /* 48*5d9d9091SRichard Lowe * void outb(int port, uint8_t value) 49*5d9d9091SRichard Lowe */ 50*5d9d9091SRichard Lowe ENTRY(outb) 51*5d9d9091SRichard Lowe movw %di, %dx 52*5d9d9091SRichard Lowe movb %sil, %al 53*5d9d9091SRichard Lowe outb (%dx) 54*5d9d9091SRichard Lowe ret 55*5d9d9091SRichard Lowe SET_SIZE(outb) 56*5d9d9091SRichard Lowe 57*5d9d9091SRichard Lowe /* 58*5d9d9091SRichard Lowe * uint8_t inb(int port) 59*5d9d9091SRichard Lowe */ 60*5d9d9091SRichard Lowe ENTRY(inb) 61*5d9d9091SRichard Lowe xorl %eax, %eax 62*5d9d9091SRichard Lowe movw %di, %dx 63*5d9d9091SRichard Lowe inb (%dx) 64*5d9d9091SRichard Lowe ret 65*5d9d9091SRichard Lowe SET_SIZE(inb) 66*5d9d9091SRichard Lowe 67*5d9d9091SRichard Lowe ENTRY(htonl) 68*5d9d9091SRichard Lowe movl %edi, %eax 69*5d9d9091SRichard Lowe bswap %eax 70*5d9d9091SRichard Lowe ret 71*5d9d9091SRichard Lowe SET_SIZE(htonl) 72*5d9d9091SRichard Lowe 73*5d9d9091SRichard Lowe#elif defined(__i386) 74*5d9d9091SRichard Lowe 75*5d9d9091SRichard Lowe .code32 76*5d9d9091SRichard Lowe 77*5d9d9091SRichard Lowe /* 78*5d9d9091SRichard Lowe * do a cpuid instruction, returning the eax/edx values 79*5d9d9091SRichard Lowe * 80*5d9d9091SRichard Lowe * uint32_t get_cpuid_edx(uint32_t *eax) 81*5d9d9091SRichard Lowe */ 82*5d9d9091SRichard Lowe ENTRY_NP(get_cpuid_edx) 83*5d9d9091SRichard Lowe movl 4(%esp), %ecx 84*5d9d9091SRichard Lowe movl (%ecx), %eax 85*5d9d9091SRichard Lowe pushl %ebx 86*5d9d9091SRichard Lowe cpuid 87*5d9d9091SRichard Lowe popl %ebx 88*5d9d9091SRichard Lowe movl 4(%esp), %ecx 89*5d9d9091SRichard Lowe movl %eax, (%ecx) 90*5d9d9091SRichard Lowe movl %edx, %eax 91*5d9d9091SRichard Lowe ret 92*5d9d9091SRichard Lowe SET_SIZE(get_cpuid_edx) 93*5d9d9091SRichard Lowe 94*5d9d9091SRichard Lowe /* 95*5d9d9091SRichard Lowe * void outb(int port, uint8_t value) 96*5d9d9091SRichard Lowe */ 97*5d9d9091SRichard Lowe ENTRY_NP(outb) 98*5d9d9091SRichard Lowe movl 4(%esp), %edx 99*5d9d9091SRichard Lowe movl 8(%esp), %eax 100*5d9d9091SRichard Lowe outb (%dx) 101*5d9d9091SRichard Lowe ret 102*5d9d9091SRichard Lowe SET_SIZE(outb) 103*5d9d9091SRichard Lowe 104*5d9d9091SRichard Lowe /* 105*5d9d9091SRichard Lowe * uint8_t inb(int port) 106*5d9d9091SRichard Lowe */ 107*5d9d9091SRichard Lowe ENTRY_NP(inb) 108*5d9d9091SRichard Lowe movl 4(%esp), %edx 109*5d9d9091SRichard Lowe inb (%dx) 110*5d9d9091SRichard Lowe andl $0xff, %eax 111*5d9d9091SRichard Lowe ret 112*5d9d9091SRichard Lowe SET_SIZE(inb) 113*5d9d9091SRichard Lowe 114*5d9d9091SRichard Lowe ENTRY(htonl) 115*5d9d9091SRichard Lowe movl 4(%esp), %eax 116*5d9d9091SRichard Lowe bswap %eax 117*5d9d9091SRichard Lowe ret 118*5d9d9091SRichard Lowe SET_SIZE(htonl) 119*5d9d9091SRichard Lowe 120*5d9d9091SRichard Lowe#endif /* __i386 */ 121*5d9d9091SRichard Lowe 122