include/asm-ia64/sn/nodepda.h

   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 #ifndef _ASM_IA64_SN_NODEPDA_H
   9 #define _ASM_IA64_SN_NODEPDA_H
  10
  11
  12 #include <asm/semaphore.h>
  13 #include <asm/irq.h>
  14 #include <asm/sn/intr.h>
  15 #include <asm/sn/router.h>
  16 #include <asm/sn/pda.h>
  17 #include <asm/sn/module.h>
  18 #include <asm/sn/bte.h>
  19 #include <asm/sn/sn2/arch.h>
  20
  21 /*
  22  * NUMA Node-Specific Data structures are defined in this file.
  23  * In particular, this is the location of the node PDA.
  24  * A pointer to the right node PDA is saved in each CPU PDA.
  25  */
  26
  27 /*
  28  * Node-specific data structure.
  29  *
  30  * One of these structures is allocated on each node of a NUMA system.
  31  *
  32  * This structure provides a convenient way of keeping together
  33  * all per-node data structures.
  34  */
  35
  36
  37
  38 struct nodepda_s {
  39         vertex_hdl_t    xbow_vhdl;
  40         nasid_t         xbow_peer;      /* NASID of our peer hub on xbow */
  41         struct semaphore xbow_sema;     /* Sema for xbow synchronization */
  42         slotid_t        slotdesc;
  43         geoid_t         geoid;
  44         module_t        *module;        /* Pointer to containing module */
  45         xwidgetnum_t    basew_id;
  46         vertex_hdl_t    basew_xc;
  47         int             hubticks;
  48         int             num_routers;    /* XXX not setup! Total routers in the system */
  49
  50
  51         char            *hwg_node_name; /* hwgraph node name */
  52         vertex_hdl_t    node_vertex;    /* Hwgraph vertex for this node */
  53
  54         void            *pdinfo;        /* Platform-dependent per-node info */
  55
  56
  57         nodepda_router_info_t   *npda_rip_first;
  58         nodepda_router_info_t   **npda_rip_last;
  59
  60
  61         spinlock_t              bist_lock;
  62
  63         /*
  64          * The BTEs on this node are shared by the local cpus
  65          */
  66         struct bteinfo_s        bte_if[BTES_PER_NODE];  /* Virtual Interface */
  67         struct timer_list       bte_recovery_timer;
  68         spinlock_t              bte_recovery_lock;
  69
  70         /*
  71          * Array of pointers to the nodepdas for each node.
  72          */
  73         struct nodepda_s        *pernode_pdaindr[MAX_COMPACT_NODES];
  74
  75 };
  76
  77 typedef struct nodepda_s nodepda_t;
  78
  79 struct irqpda_s {
  80         int num_irq_used;
  81         char irq_flags[NR_IRQS];
  82         struct pci_dev *device_dev[NR_IRQS];
  83         char share_count[NR_IRQS];
  84         struct pci_dev *curr;
  85 };
  86
  87 typedef struct irqpda_s irqpda_t;
  88
  89
  90 /*
  91  * Access Functions for node PDA.
  92  * Since there is one nodepda for each node, we need a convenient mechanism
  93  * to access these nodepdas without cluttering code with #ifdefs.
  94  * The next set of definitions provides this.
  95  * Routines are expected to use
  96  *
  97  *      nodepda                 -> to access node PDA for the node on which code is running
  98  *      subnodepda              -> to access subnode PDA for the subnode on which code is running
  99  *
 100  *      NODEPDA(cnode)          -> to access node PDA for cnodeid
 101  *      SUBNODEPDA(cnode,sn)    -> to access subnode PDA for cnodeid/subnode
 102  */
 103
 104 #define nodepda         pda->p_nodepda          /* Ptr to this node's PDA */
 105 #define NODEPDA(cnode)          (nodepda->pernode_pdaindr[cnode])
 106
 107
 108 /*
 109  * Macros to access data structures inside nodepda
 110  */
 111 #define NODE_MODULEID(cnode)    geo_module((NODEPDA(cnode)->geoid))
 112 #define NODE_SLOTID(cnode)      (NODEPDA(cnode)->slotdesc)
 113
 114
 115 /*
 116  * Quickly convert a compact node ID into a hwgraph vertex
 117  */
 118 #define cnodeid_to_vertex(cnodeid) (NODEPDA(cnodeid)->node_vertex)
 119
 120
 121 /*
 122  * Check if given a compact node id the corresponding node has all the
 123  * cpus disabled.
 124  */
 125 #define is_headless_node(cnode)         (nr_cpus_node(cnode) == 0)
 126
 127 /*
 128  * Check if given a node vertex handle the corresponding node has all the
 129  * cpus disabled.
 130  */
 131 #define is_headless_node_vertex(_nodevhdl) \
 132                         is_headless_node(nodevertex_to_cnodeid(_nodevhdl))
 133
 134
 135 #endif /* _ASM_IA64_SN_NODEPDA_H */