/* * Copyright (c) 2005 Pavel Rimsky * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * - Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * - The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** @addtogroup kernel_sparc64 * @{ */ /** @file */ #ifndef KERN_sparc64_CPU_NODE_H_ #define KERN_sparc64_CPU_NODE_H_ #include <genarch/ofw/ofw_tree.h> /** Finds the parent node of all the CPU nodes (nodes named "cpu" or "cmp"). * * Depending on the machine type (and possibly the OFW version), CPUs can be * at "/" or at "/ssm@0,0". */ static inline ofw_tree_node_t *cpus_parent(void) { ofw_tree_node_t *parent; parent = ofw_tree_find_child(ofw_tree_lookup("/"), "ssm@0,0"); if (parent == NULL) parent = ofw_tree_lookup("/"); return parent; } #endif /** @} */