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 _KAIF_ASMUTIL_H 28*0Sstevel@tonic-gate #define _KAIF_ASMUTIL_H 29*0Sstevel@tonic-gate 30*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate #ifdef __cplusplus 33*0Sstevel@tonic-gate extern "C" { 34*0Sstevel@tonic-gate #endif 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #include "mach_asmutil.h" 37*0Sstevel@tonic-gate 38*0Sstevel@tonic-gate #ifdef _ASM 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate /* 41*0Sstevel@tonic-gate * Each cpusave buffer has an area set aside for a ring buffer of breadcrumbs. 42*0Sstevel@tonic-gate * The following macros manage the buffer. 43*0Sstevel@tonic-gate */ 44*0Sstevel@tonic-gate 45*0Sstevel@tonic-gate /* Advance the ring buffer */ 46*0Sstevel@tonic-gate #define ADVANCE_CRUMB_POINTER(cpusave, tmp1, tmp2) \ 47*0Sstevel@tonic-gate ld [cpusave + KRS_CURCRUMBIDX], tmp1; \ 48*0Sstevel@tonic-gate cmp tmp1, KAIF_NCRUMBS - 1; \ 49*0Sstevel@tonic-gate bge 1f; \ 50*0Sstevel@tonic-gate /* Advance the pointer and index */ \ 51*0Sstevel@tonic-gate add tmp1, 1, tmp1; \ 52*0Sstevel@tonic-gate st tmp1, [cpusave + KRS_CURCRUMBIDX]; \ 53*0Sstevel@tonic-gate ldx [cpusave + KRS_CURCRUMB], tmp1; \ 54*0Sstevel@tonic-gate ba 2f; \ 55*0Sstevel@tonic-gate add tmp1, KRM_SIZE, tmp1; \ 56*0Sstevel@tonic-gate 1: /* Reset the pointer and index */ \ 57*0Sstevel@tonic-gate st %g0, [cpusave + KRS_CURCRUMBIDX]; \ 58*0Sstevel@tonic-gate add cpusave, KRS_CRUMBS, tmp1; \ 59*0Sstevel@tonic-gate 2: stx tmp1, [cpusave + KRS_CURCRUMB]; \ 60*0Sstevel@tonic-gate /* Clear the new crumb */ \ 61*0Sstevel@tonic-gate set KRM_SIZE, tmp2; \ 62*0Sstevel@tonic-gate 3: subcc tmp2, 8, tmp2; \ 63*0Sstevel@tonic-gate bg 3b; \ 64*0Sstevel@tonic-gate stx %g0, [tmp1 + tmp2] 65*0Sstevel@tonic-gate 66*0Sstevel@tonic-gate /* Set a value in the current breadcrumb buffer */ 67*0Sstevel@tonic-gate #define ADD_CRUMB(cpusave, offset, value, tmp) \ 68*0Sstevel@tonic-gate ldx [cpusave + KRS_CURCRUMB], tmp; \ 69*0Sstevel@tonic-gate stx value, [tmp + offset]; 70*0Sstevel@tonic-gate 71*0Sstevel@tonic-gate #define ADD_CRUMB_CONST(cpusave, offset, value, tmp1, tmp2) \ 72*0Sstevel@tonic-gate ldx [cpusave + KRS_CURCRUMB], tmp1; \ 73*0Sstevel@tonic-gate mov value, tmp2; \ 74*0Sstevel@tonic-gate stx tmp2, [tmp1 + offset] 75*0Sstevel@tonic-gate 76*0Sstevel@tonic-gate #define ADD_CRUMB_FLAG(cpusave, flag, tmp1, tmp2, tmp3) \ 77*0Sstevel@tonic-gate ldx [cpusave + KRS_CURCRUMB], tmp1; \ 78*0Sstevel@tonic-gate ld [tmp1 + KRM_FLAG], tmp2; \ 79*0Sstevel@tonic-gate set flag, tmp3; \ 80*0Sstevel@tonic-gate or tmp2, tmp3, tmp2; \ 81*0Sstevel@tonic-gate st tmp2, [tmp1 + KRM_FLAG] 82*0Sstevel@tonic-gate 83*0Sstevel@tonic-gate #endif 84*0Sstevel@tonic-gate 85*0Sstevel@tonic-gate #ifdef __cplusplus 86*0Sstevel@tonic-gate } 87*0Sstevel@tonic-gate #endif 88*0Sstevel@tonic-gate 89*0Sstevel@tonic-gate #endif /* _KAIF_ASMUTIL_H */ 90