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