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 _MACH_ASMUTIL_H 28 #define _MACH_ASMUTIL_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #ifdef _ASM 37 38 #define GET_NWIN(scr1, reg1) \ 39 rdpr %cwp, scr1; /* save current %cwp */ \ 40 wrpr %g0, 0x1f, %cwp; \ 41 rdpr %cwp, reg1; \ 42 wrpr %g0, scr1, %cwp /* restore current %cwp */ 43 44 #define SET_GL(x) \ 45 wrpr %g0, x, %gl 46 47 #define SWITCH_TO_NORMAL_GLOBALS() \ 48 /* tempararily save %o5 and %o4 and %o3 */; \ 49 stx %o5, [%g5 + KREG_OFF(KREG_O5)]; \ 50 stx %o4, [%g5 + KREG_OFF(KREG_O4)]; \ 51 stx %o3, [%g5 + KREG_OFF(KREG_O3)]; \ 52 /* now save %g5, %g4 and %g7 cause we are going to gl 0 */; \ 53 mov %g5, %o5 /* %o5 is gregs pointer now */; \ 54 mov %g4, %o4 /* %o4 is %pstate value now */; \ 55 mov %g7, %o3 /* %o3 is return pc now */; \ 56 SET_GL(0); /* normal globals */ 57 58 #define SWITCH_TO_TL1_GLOBALS_AND_RET() \ 59 SET_GL(1) /* use TL1 globals, set %pstate from %o4 */;\ 60 mov %o4, %g4 /* restore %g4 as %pstate */; \ 61 mov %o5, %g5 /* restore %g5 as gregs pointer */; \ 62 mov %o3, %g7 /* retore %g7 as return pc */; \ 63 ldx [%g5 + KREG_OFF(KREG_O5)], %o5 /* restore saved %o5 */; \ 64 ldx [%g5 + KREG_OFF(KREG_O4)], %o4 /* restore saved %o4 */; \ 65 jmp %g7; \ 66 ldx [%g5 + KREG_OFF(KREG_O3)], %o3 /* restore saved %o3 */ 67 68 #define KAIF_SAVE_TL1_STATE() \ 69 ba kaif_save_tl1_state;\ 70 mov PTSTATE_KERN_COMMON, %g4 71 72 #define KAIF_SAVE_TL1_STATE_SLAVE() KAIF_SAVE_TL1_STATE() 73 74 #define SET_PSTATE_COMMON_AG(reg1) \ 75 or %g0, PTSTATE_KERN_COMMON, reg1;\ 76 wrpr reg1, %pstate 77 78 #define KAIF_DEMAP_TLB_ALL(scr) 79 80 #endif 81 82 #ifdef __cplusplus 83 } 84 #endif 85 86 #endif /* _MACH_ASMUTIL_H */ 87