arch/ia64/sn/io/sn2/ml_SN_init.c

   1 /*
   2  * This file is subject to the terms and conditions of the GNU General Public
   3  * License.  See the file "COPYING" in the main directory of this archive
   4  * for more details.
   5  *
   6  * Copyright (C) 1992 - 1997, 2000-2003 Silicon Graphics, Inc. All rights reserved.
   7  */
   8
   9 #include <linux/types.h>
  10 #include <linux/slab.h>
  11 #include <linux/bootmem.h>
  12 #include <asm/sn/sgi.h>
  13 #include <asm/sn/io.h>
  14 #include <asm/sn/hcl.h>
  15 #include <asm/sn/labelcl.h>
  16 #include <asm/sn/sn_private.h>
  17 #include <asm/sn/klconfig.h>
  18 #include <asm/sn/sn_cpuid.h>
  19 #include <asm/sn/simulator.h>
  20
  21 int             maxcpus;
  22
  23 extern xwidgetnum_t hub_widget_id(nasid_t);
  24
  25 /* XXX - Move the meat of this to intr.c ? */
  26 /*
  27  * Set up the platform-dependent fields in the nodepda.
  28  */
  29 void init_platform_nodepda(nodepda_t *npda, cnodeid_t node)
  30 {
  31         hubinfo_t hubinfo;
  32         nasid_t nasid;
  33
  34         /* Allocate per-node platform-dependent data */
  35
  36         nasid = cnodeid_to_nasid(node);
  37         if (node >= numnodes) /* Headless/memless IO nodes */
  38                 hubinfo = (hubinfo_t)alloc_bootmem_node(NODE_DATA(0), sizeof(struct hubinfo_s));
  39         else
  40                 hubinfo = (hubinfo_t)alloc_bootmem_node(NODE_DATA(node), sizeof(struct hubinfo_s));
  41
  42         npda->pdinfo = (void *)hubinfo;
  43         hubinfo->h_nodepda = npda;
  44         hubinfo->h_cnodeid = node;
  45
  46         spin_lock_init(&hubinfo->h_crblock);
  47
  48         npda->xbow_peer = INVALID_NASID;
  49
  50         /*
  51          * Initialize the linked list of
  52          * router info pointers to the dependent routers
  53          */
  54         npda->npda_rip_first = NULL;
  55
  56         /*
  57          * npda_rip_last always points to the place
  58          * where the next element is to be inserted
  59          * into the list
  60          */
  61         npda->npda_rip_last = &npda->npda_rip_first;
  62         npda->geoid.any.type = GEO_TYPE_INVALID;
  63
  64         init_MUTEX_LOCKED(&npda->xbow_sema); /* init it locked? */
  65 }
  66
  67 void
  68 init_platform_hubinfo(nodepda_t **nodepdaindr)
  69 {
  70         cnodeid_t       cnode;
  71         hubinfo_t hubinfo;
  72         nodepda_t *npda;
  73         extern int numionodes;
  74
  75         if (IS_RUNNING_ON_SIMULATOR())
  76                 return;
  77         for (cnode = 0; cnode < numionodes; cnode++) {
  78                 npda = nodepdaindr[cnode];
  79                 hubinfo = (hubinfo_t)npda->pdinfo;
  80                 hubinfo->h_nasid = cnodeid_to_nasid(cnode);
  81                 hubinfo->h_widgetid = hub_widget_id(hubinfo->h_nasid);
  82         }
  83 }
  84
  85 void
  86 update_node_information(cnodeid_t cnodeid)
  87 {
  88         nodepda_t *npda = NODEPDA(cnodeid);
  89         nodepda_router_info_t *npda_rip;
  90
  91         /* Go through the list of router info
  92          * structures and copy some frequently
  93          * accessed info from the info hanging
  94          * off the corresponding router vertices
  95          */
  96         npda_rip = npda->npda_rip_first;
  97         while(npda_rip) {
  98                 if (npda_rip->router_infop) {
  99                         npda_rip->router_portmask =
 100                                 npda_rip->router_infop->ri_portmask;
 101                         npda_rip->router_slot =
 102                                 npda_rip->router_infop->ri_slotnum;
 103                 } else {
 104                         /* No router, no ports. */
 105                         npda_rip->router_portmask = 0;
 106                 }
 107                 npda_rip = npda_rip->router_next;
 108         }
 109 }