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3467 | rimsky | 1 | /* |
2 | * Copyright (c) 2005 Pavel Rimsky |
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3 | * All rights reserved. |
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4 | * |
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5 | * Redistribution and use in source and binary forms, with or without |
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6 | * modification, are permitted provided that the following conditions |
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7 | * are met: |
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8 | * |
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9 | * - Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * - Redistributions in binary form must reproduce the above copyright |
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12 | * notice, this list of conditions and the following disclaimer in the |
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13 | * documentation and/or other materials provided with the distribution. |
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14 | * - The name of the author may not be used to endorse or promote products |
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15 | * derived from this software without specific prior written permission. |
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16 | * |
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17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |||
29 | /** @addtogroup sparc64 |
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30 | * @{ |
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31 | */ |
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32 | /** @file |
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33 | */ |
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34 | |||
35 | #ifndef KERN_sparc64_CPU_NODE_H_ |
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36 | #define KERN_sparc64_CPU_NODE_H_ |
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37 | |||
38 | #include <genarch/ofw/ofw_tree.h> |
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39 | |||
40 | /* |
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41 | * Name of the CPU OFW node property, which holds the MID (processor ID). |
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42 | * US uses UPA, US3 uses Fireplane, hence the properties names are different. |
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43 | */ |
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44 | #if defined (US) |
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45 | #define PORTID_NAME "upa-portid" |
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46 | #elif defined (US3) |
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47 | #define PORTID_NAME "portid" |
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48 | #endif |
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49 | |||
50 | /** Finds the parent node of all the CPU nodes. |
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51 | * |
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52 | * Depending on the OFW version, CPUS can be at "/" or at "/ssm@0,0". |
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53 | */ |
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54 | static inline ofw_tree_node_t *cpus_parent(void) |
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55 | { |
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56 | ofw_tree_node_t *parent; |
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57 | parent = ofw_tree_find_child(ofw_tree_lookup("/"), "ssm@0,0"); |
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58 | if (parent == NULL) |
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59 | parent = ofw_tree_lookup("/"); |
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60 | return parent; |
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61 | } |
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62 | |||
63 | #endif |
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64 | |||
65 | /** @} |
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66 | */ |