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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _ASM_MMU_H 27 #define _ASM_MMU_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/types.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 #if defined(__GNUC__) && !defined(__xpv) 38 39 #if defined(__amd64) 40 41 extern __inline__ ulong_t getcr3(void) 42 { 43 uint64_t value; 44 45 __asm__ __volatile__( 46 "movq %%cr3, %0" 47 : "=r" (value)); 48 return (value); 49 } 50 51 extern __inline__ void setcr3(ulong_t value) 52 { 53 __asm__ __volatile__( 54 "movq %0, %%cr3" 55 : /* no output */ 56 : "r" (value)); 57 } 58 59 extern __inline__ void reload_cr3(void) 60 { 61 setcr3(getcr3()); 62 } 63 64 #elif defined(__i386) 65 66 extern __inline__ ulong_t getcr3(void) 67 { 68 uint32_t value; 69 70 __asm__ __volatile__( 71 "movl %%cr3, %0" 72 : "=r" (value)); 73 return (value); 74 } 75 76 extern __inline__ void setcr3(ulong_t value) 77 { 78 __asm__ __volatile__( 79 "movl %0, %%cr3" 80 : /* no output */ 81 : "r" (value)); 82 } 83 84 extern __inline__ void reload_cr3(void) 85 { 86 setcr3(getcr3()); 87 } 88 89 #endif 90 91 #endif /* __GNUC__ && !__xpv */ 92 93 #ifdef __cplusplus 94 } 95 #endif 96 97 #endif /* _ASM_MMU_H */ 98