LXR linux/arch/ia64/include/asm/sn/geo.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, 2000-2005 Silicon Graphics, Inc. All rights reserved.
   7 */
   8
   9#ifndef _ASM_IA64_SN_GEO_H
  10#define _ASM_IA64_SN_GEO_H
  11
  12/* The geoid_t implementation below is based loosely on the pcfg_t
  13   implementation in sys/SN/promcfg.h. */
  14
  15/* Type declaractions */
  16
  17/* Size of a geoid_t structure (must be before decl. of geoid_u) */
  18#define GEOID_SIZE      8       /* Would 16 be better?  The size can
  19                                   be different on different platforms. */
  20
  21#define MAX_SLOTS       0xf     /* slots per module */
  22#define MAX_SLABS       0xf     /* slabs per slot */
  23
  24typedef unsigned char   geo_type_t;
  25
  26/* Fields common to all substructures */
  27typedef struct geo_common_s {
  28    moduleid_t  module;         /* The module (box) this h/w lives in */
  29    geo_type_t  type;           /* What type of h/w is named by this geoid_t */
  30    slabid_t    slab:4;         /* slab (ASIC), 0 .. 15 within slot */
  31    slotid_t    slot:4;         /* slot (Blade), 0 .. 15 within module */
  32} geo_common_t;
  33
  34/* Additional fields for particular types of hardware */
  35typedef struct geo_node_s {
  36    geo_common_t        common;         /* No additional fields needed */
  37} geo_node_t;
  38
  39typedef struct geo_rtr_s {
  40    geo_common_t        common;         /* No additional fields needed */
  41} geo_rtr_t;
  42
  43typedef struct geo_iocntl_s {
  44    geo_common_t        common;         /* No additional fields needed */
  45} geo_iocntl_t;
  46
  47typedef struct geo_pcicard_s {
  48    geo_iocntl_t        common;
  49    char                bus;    /* Bus/widget number */
  50    char                slot;   /* PCI slot number */
  51} geo_pcicard_t;
  52
  53/* Subcomponents of a node */
  54typedef struct geo_cpu_s {
  55    geo_node_t  node;
  56    char        slice;          /* Which CPU on the node */
  57} geo_cpu_t;
  58
  59typedef struct geo_mem_s {
  60    geo_node_t  node;
  61    char        membus;         /* The memory bus on the node */
  62    char        memslot;        /* The memory slot on the bus */
  63} geo_mem_t;
  64
  65
  66typedef union geoid_u {
  67    geo_common_t        common;
  68    geo_node_t          node;
  69    geo_iocntl_t        iocntl;
  70    geo_pcicard_t       pcicard;
  71    geo_rtr_t           rtr;
  72    geo_cpu_t           cpu;
  73    geo_mem_t           mem;
  74    char                padsize[GEOID_SIZE];
  75} geoid_t;
  76
  77
  78/* Preprocessor macros */
  79
  80#define GEO_MAX_LEN     48      /* max. formatted length, plus some pad:
  81                                   module/001c07/slab/5/node/memory/2/slot/4 */
  82
  83/* Values for geo_type_t */
  84#define GEO_TYPE_INVALID        0
  85#define GEO_TYPE_MODULE         1
  86#define GEO_TYPE_NODE           2
  87#define GEO_TYPE_RTR            3
  88#define GEO_TYPE_IOCNTL         4
  89#define GEO_TYPE_IOCARD         5
  90#define GEO_TYPE_CPU            6
  91#define GEO_TYPE_MEM            7
  92#define GEO_TYPE_MAX            (GEO_TYPE_MEM+1)
  93
  94/* Parameter for hwcfg_format_geoid_compt() */
  95#define GEO_COMPT_MODULE        1
  96#define GEO_COMPT_SLAB          2
  97#define GEO_COMPT_IOBUS         3
  98#define GEO_COMPT_IOSLOT        4
  99#define GEO_COMPT_CPU           5
 100#define GEO_COMPT_MEMBUS        6
 101#define GEO_COMPT_MEMSLOT       7
 102
 103#define GEO_INVALID_STR         "<invalid>"
 104
 105#define INVALID_NASID           ((nasid_t)-1)
 106#define INVALID_CNODEID         ((cnodeid_t)-1)
 107#define INVALID_PNODEID         ((pnodeid_t)-1)
 108#define INVALID_SLAB            (slabid_t)-1
 109#define INVALID_SLOT            (slotid_t)-1
 110#define INVALID_MODULE          ((moduleid_t)-1)
 111
 112static inline slabid_t geo_slab(geoid_t g)
 113{
 114        return (g.common.type == GEO_TYPE_INVALID) ?
 115                INVALID_SLAB : g.common.slab;
 116}
 117
 118static inline slotid_t geo_slot(geoid_t g)
 119{
 120        return (g.common.type == GEO_TYPE_INVALID) ?
 121                INVALID_SLOT : g.common.slot;
 122}
 123
 124static inline moduleid_t geo_module(geoid_t g)
 125{
 126        return (g.common.type == GEO_TYPE_INVALID) ?
 127                INVALID_MODULE : g.common.module;
 128}
 129
 130extern geoid_t cnodeid_get_geoid(cnodeid_t cnode);
 131
 132#endif /* _ASM_IA64_SN_GEO_H */
 133