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#pragma ident "%Z%%M% %I% %E% SMI" 28 29#if defined(lint) 30#include <sys/types.h> 31#include <sys/cpuvar.h> 32#else /*lint */ 33#include "assym.h" 34#endif /* lint */ 35 36#include <sys/param.h> 37#include <sys/asm_linkage.h> 38#include <sys/errno.h> 39#include <sys/intreg.h> 40#include <sys/intr.h> 41#include <sys/x_call.h> 42#include <sys/privregs.h> 43#include <sys/machthread.h> 44#include <sys/machtrap.h> 45#include <sys/xc_impl.h> 46#include <sys/bitmap.h> 47 48#ifdef TRAPTRACE 49#include <sys/traptrace.h> 50#endif /* TRAPTRACE */ 51 52 53#if defined(lint) 54 55/* ARGSUSED */ 56void 57send_self_xcall(struct cpu *cpu, uint64_t arg1, uint64_t arg2, xcfunc_t *func) 58{} 59 60#else 61/* 62 * For a x-trap request to the same processor, just send a fast trap. 63 * Does not accept inums. 64 */ 65 ENTRY_NP(send_self_xcall) 66 ta ST_SELFXCALL 67 retl 68 nop 69 SET_SIZE(send_self_xcall) 70#endif /* lint */ 71 72#if defined(lint) 73void 74idle_stop_xcall(void) 75{} 76#else 77/* 78 * idle or stop xcall handler. 79 * 80 * Called in response to an xt_some initiated by idle_other_cpus 81 * and stop_other_cpus. 82 * 83 * Entry: 84 * %g1 - handler at TL==0 85 * 86 * Register Usage: 87 * %g1 - preserved 88 * %g4 - pil 89 * 90 * %g1 will either be cpu_idle_self or cpu_stop_self and is 91 * passed to sys_trap, to run at TL=0. No need to worry about 92 * the regp passed to cpu_idle_self/cpu_stop_self, since 93 * neither require arguments. 94 */ 95 ENTRY_NP(idle_stop_xcall) 96 rdpr %pil, %g4 97 cmp %g4, XCALL_PIL 98 ba,pt %xcc, sys_trap 99 movl %xcc, XCALL_PIL, %g4 100 SET_SIZE(idle_stop_xcall) 101 102#endif /* lint */ 103 104