kldc.c revision 5699897cfc22a71e1441854892e3659f179ee0bc
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* In-Kernel Logical Domain Channel (LDC) Functionality
*
* Provides a mechanism for LDC channels to be reset when entering
* the prom or kmdb by invoking a callback before entry.
*/
/*
* Setting this to zero disables debug_enter/debug_exit callbacks
* which may be useful when debugging LDC related issues.
*/
static int kldc_callback_enabled = 1;
/*
* Callback function pointer.
*/
static void (*kldc_debug_enter_cb)(void);
void
kldc_set_debug_cb(void (*debug_enter_cb)(void))
{
}
/*
* Called just before entering the prom or kmdb but after all other CPUs
* have entered the idle loop.
*/
void
kldc_debug_enter(void)
{
(*kldc_debug_enter_cb)();
}
}