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         extern void router_map_init(nodepda_t *);
  35         extern void router_queue_init(nodepda_t *,cnodeid_t);
  36         extern void intr_init_vecblk(nodepda_t *, cnodeid_t, int);
  37
  38         /* Allocate per-node platform-dependent data */
  39
  40         nasid = COMPACT_TO_NASID_NODEID(node);
  41         if (node >= numnodes) /* Headless/memless IO nodes */
  42                 hubinfo = (hubinfo_t)alloc_bootmem_node(NODE_DATA(0), sizeof(struct hubinfo_s));
  43         else
  44                 hubinfo = (hubinfo_t)alloc_bootmem_node(NODE_DATA(node), sizeof(struct hubinfo_s));
  45
  46         npda->pdinfo = (void *)hubinfo;
  47         hubinfo->h_nodepda = npda;
  48         hubinfo->h_cnodeid = node;
  49
  50         spin_lock_init(&hubinfo->h_crblock);
  51
  52         npda->xbow_peer = INVALID_NASID;
  53
  54         /*
  55          * Initialize the linked list of
  56          * router info pointers to the dependent routers
  57          */
  58         npda->npda_rip_first = NULL;
  59
  60         /*
  61          * npda_rip_last always points to the place
  62          * where the next element is to be inserted
  63          * into the list
  64          */
  65         npda->npda_rip_last = &npda->npda_rip_first;
  66         npda->geoid.any.type = GEO_TYPE_INVALID;
  67
  68         init_MUTEX_LOCKED(&npda->xbow_sema); /* init it locked? */
  69 }
  70
  71 void
  72 init_platform_hubinfo(nodepda_t **nodepdaindr)
  73 {
  74         cnodeid_t       cnode;
  75         hubinfo_t hubinfo;
  76         nodepda_t *npda;
  77         extern int numionodes;
  78
  79         if (IS_RUNNING_ON_SIMULATOR())
  80                 return;
  81         for (cnode = 0; cnode < numionodes; cnode++) {
  82                 npda = nodepdaindr[cnode];
  83                 hubinfo = (hubinfo_t)npda->pdinfo;
  84                 hubinfo->h_nasid = COMPACT_TO_NASID_NODEID(cnode);
  85                 hubinfo->h_widgetid = hub_widget_id(hubinfo->h_nasid);
  86         }
  87 }
  88
  89 void
  90 update_node_information(cnodeid_t cnodeid)
  91 {
  92         nodepda_t *npda = NODEPDA(cnodeid);
  93         nodepda_router_info_t *npda_rip;
  94
  95         /* Go through the list of router info
  96          * structures and copy some frequently
  97          * accessed info from the info hanging
  98          * off the corresponding router vertices
  99          */
 100         npda_rip = npda->npda_rip_first;
 101         while(npda_rip) {
 102                 if (npda_rip->router_infop) {
 103                         npda_rip->router_portmask =
 104                                 npda_rip->router_infop->ri_portmask;
 105                         npda_rip->router_slot =
 106                                 npda_rip->router_infop->ri_slotnum;
 107                 } else {
 108                         /* No router, no ports. */
 109                         npda_rip->router_portmask = 0;
 110                 }
 111                 npda_rip = npda_rip->router_next;
 112         }
 113 }