1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _ASM_MMU_H 28 #define _ASM_MMU_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 #if !defined(__lint) && defined(__GNUC__) 39 40 #if defined(__amd64) 41 42 extern __inline__ ulong_t getcr3(void) 43 { 44 uint64_t value; 45 46 __asm__ __volatile__( 47 "movq %%cr3, %0" 48 : "=r" (value)); 49 return (value); 50 } 51 52 extern __inline__ void setcr3(ulong_t value) 53 { 54 __asm__ __volatile__( 55 "movq %0, %%cr3" 56 : /* no output */ 57 : "r" (value)); 58 } 59 60 extern __inline__ void reload_cr3(void) 61 { 62 setcr3(getcr3()); 63 } 64 65 #elif defined(__i386) 66 67 extern __inline__ ulong_t getcr3(void) 68 { 69 uint32_t value; 70 71 __asm__ __volatile__( 72 "movl %%cr3, %0" 73 : "=r" (value)); 74 return (value); 75 } 76 77 extern __inline__ void setcr3(ulong_t value) 78 { 79 __asm__ __volatile__( 80 "movl %0, %%cr3" 81 : /* no output */ 82 : "r" (value)); 83 } 84 85 extern __inline__ void reload_cr3(void) 86 { 87 setcr3(getcr3()); 88 } 89 90 #endif 91 92 #endif /* !__lint && __GNUC__ */ 93 94 #ifdef __cplusplus 95 } 96 #endif 97 98 #endif /* _ASM_MMU_H */ 99