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#include "assym.h" 28 29#include <sys/param.h> 30#include <sys/asm_linkage.h> 31#include <sys/errno.h> 32#include <sys/intreg.h> 33#include <sys/intr.h> 34#include <sys/x_call.h> 35#include <sys/privregs.h> 36#include <sys/machthread.h> 37#include <sys/machtrap.h> 38#include <sys/xc_impl.h> 39#include <sys/bitmap.h> 40 41#ifdef TRAPTRACE 42#include <sys/traptrace.h> 43#endif /* TRAPTRACE */ 44 45 46/* 47 * For a x-trap request to the same processor, just send a fast trap. 48 * Does not accept inums. 49 */ 50 ENTRY_NP(send_self_xcall) 51 ta ST_SELFXCALL 52 retl 53 nop 54 SET_SIZE(send_self_xcall) 55 56/* 57 * idle or stop xcall handler. 58 * 59 * Called in response to an xt_some initiated by idle_other_cpus 60 * and stop_other_cpus. 61 * 62 * Entry: 63 * %g1 - handler at TL==0 64 * 65 * Register Usage: 66 * %g1 - preserved 67 * %g4 - pil 68 * 69 * %g1 will either be cpu_idle_self or cpu_stop_self and is 70 * passed to sys_trap, to run at TL=0. No need to worry about 71 * the regp passed to cpu_idle_self/cpu_stop_self, since 72 * neither require arguments. 73 */ 74 ENTRY_NP(idle_stop_xcall) 75 rdpr %pil, %g4 76 cmp %g4, XCALL_PIL 77 ba,pt %xcc, sys_trap 78 movl %xcc, XCALL_PIL, %g4 79 SET_SIZE(idle_stop_xcall) 80 81