Merge by hand from Linus' tree.

[linux-2.6] / include / asm-mips / sn / klconfig.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Derived from IRIX <sys/SN/klconfig.h>.
 *
 * Copyright (C) 1992 - 1997, 1999, 2000 Silicon Graphics, Inc.
 * Copyright (C) 1999, 2000 by Ralf Baechle
 */
#ifndef _ASM_SN_KLCONFIG_H
#define _ASM_SN_KLCONFIG_H

/*
 * The KLCONFIG structures store info about the various BOARDs found
 * during Hardware Discovery. In addition, it stores info about the
 * components found on the BOARDs.
 */

/*
 * WARNING:
 *      Certain assembly language routines (notably xxxxx.s) in the IP27PROM
 *      will depend on the format of the data structures in this file.  In
 *      most cases, rearranging the fields can seriously break things.
 *      Adding fields in the beginning or middle can also break things.
 *      Add fields if necessary, to the end of a struct in such a way
 *      that offsets of existing fields do not change.
 */

#include <linux/config.h>
#include <linux/types.h>
#include <asm/sn/types.h>

#if defined(CONFIG_SGI_IP27)

#include <asm/sn/sn0/addrs.h>
//#include <sys/SN/router.h>
// XXX Stolen from <sys/SN/router.h>:
#define MAX_ROUTER_PORTS (6)    /* Max. number of ports on a router */
#include <asm/sn/sn0/sn0_fru.h>
//#include <sys/graph.h>
//#include <sys/xtalk/xbow.h>

#elif defined(CONFIG_SGI_IP35)

#include <asm/sn/sn1/addrs.h>
#include <sys/sn/router.h>
#include <sys/graph.h>
#include <asm/xtalk/xbow.h>

#endif /* !CONFIG_SGI_IP27 && !CONFIG_SGI_IP35 */

#if defined(CONFIG_SGI_IP27) || defined(CONFIG_SGI_IP35)
#include <asm/sn/agent.h>
#include <asm/arc/types.h>
#include <asm/arc/hinv.h>
#if defined(CONFIG_SGI_IO) || defined(CONFIG_SGI_IP35)
// The hack file has to be before vector and after sn0_fru....
#include <asm/hack.h>
#include <asm/sn/vector.h>
#include <asm/xtalk/xtalk.h>
#endif /* CONFIG_SGI_IO || CONFIG_SGI_IP35 */
#endif /* CONFIG_SGI_IP27 || CONFIG_SGI_IP35 */

#define KLCFGINFO_MAGIC 0xbeedbabe

#ifdef FRUTEST
typedef u64 klconf_off_t;
#else
typedef s32 klconf_off_t;
#endif

/*
 * Some IMPORTANT OFFSETS. These are the offsets on all NODES.
 */
#if 0
#define RAMBASE                 0
#define ARCSSPB_OFF             0x1000 /* shift it to sys/arcs/spb.h */

#define OFF_HWGRAPH             0
#endif

#define MAX_MODULE_ID           255
#define SIZE_PAD                4096 /* 4k padding for structures */
/*
 * 1 NODE brd, 2 Router brd (1 8p, 1 meta), 6 Widgets,
 * 2 Midplanes assuming no pci card cages
 */
#define MAX_SLOTS_PER_NODE      (1 + 2 + 6 + 2)

/* XXX if each node is guranteed to have some memory */

#define MAX_PCI_DEVS            8

/* lboard_t->brd_flags fields */
/* All bits in this field are currently used. Try the pad fields if
   you need more flag bits */

#define ENABLE_BOARD            0x01
#define FAILED_BOARD            0x02
#define DUPLICATE_BOARD         0x04    /* Boards like midplanes/routers which
                                           are discovered twice. Use one of them */
#define VISITED_BOARD           0x08    /* Used for compact hub numbering. */
#define LOCAL_MASTER_IO6        0x10    /* master io6 for that node */
#define GLOBAL_MASTER_IO6       0x20
#define THIRD_NIC_PRESENT       0x40    /* for future use */
#define SECOND_NIC_PRESENT      0x80    /* addons like MIO are present */

/* klinfo->flags fields */

#define KLINFO_ENABLE           0x01    /* This component is enabled */
#define KLINFO_FAILED           0x02    /* This component failed */
#define KLINFO_DEVICE           0x04    /* This component is a device */
#define KLINFO_VISITED          0x08    /* This component has been visited */
#define KLINFO_CONTROLLER       0x10    /* This component is a device controller */
#define KLINFO_INSTALL          0x20    /* Install a driver */
#define KLINFO_HEADLESS         0x40    /* Headless (or hubless) component */
#define IS_CONSOLE_IOC3(i)      ((((klinfo_t *)i)->flags) & KLINFO_INSTALL)

#define GB2             0x80000000

#define MAX_RSV_PTRS    32

/* Structures to manage various data storage areas */
/* The numbers must be contiguous since the array index i
   is used in the code to allocate various areas.
*/

#define BOARD_STRUCT            0
#define COMPONENT_STRUCT        1
#define ERRINFO_STRUCT          2
#define KLMALLOC_TYPE_MAX       (ERRINFO_STRUCT + 1)
#define DEVICE_STRUCT           3


typedef struct console_s {
#if defined(CONFIG_SGI_IO)      /* FIXME */
        __psunsigned_t  uart_base;
        __psunsigned_t  config_base;
        __psunsigned_t  memory_base;
#else
        unsigned long   uart_base;
        unsigned long   config_base;
        unsigned long   memory_base;
#endif
        short           baud;
        short           flag;
        int             type;
        nasid_t         nasid;
        char            wid;
        char            npci;
        nic_t           baseio_nic;
} console_t;

typedef struct klc_malloc_hdr {
        klconf_off_t km_base;
        klconf_off_t km_limit;
        klconf_off_t km_current;
} klc_malloc_hdr_t;

/* Functions/macros needed to use this structure */

typedef struct kl_config_hdr {
        u64             ch_magic;       /* set this to KLCFGINFO_MAGIC */
        u32             ch_version;    /* structure version number */
        klconf_off_t    ch_malloc_hdr_off; /* offset of ch_malloc_hdr */
        klconf_off_t    ch_cons_off;       /* offset of ch_cons */
        klconf_off_t    ch_board_info;  /* the link list of boards */
        console_t       ch_cons_info;   /* address info of the console */
        klc_malloc_hdr_t ch_malloc_hdr[KLMALLOC_TYPE_MAX];
        confidence_t    ch_sw_belief;   /* confidence that software is bad*/
        confidence_t    ch_sn0net_belief; /* confidence that sn0net is bad */
} kl_config_hdr_t;


#define KL_CONFIG_HDR(_nasid)   ((kl_config_hdr_t *)(KLCONFIG_ADDR(_nasid)))
#if 0
#define KL_CONFIG_MALLOC_HDR(_nasid) \
                                (KL_CONFIG_HDR(_nasid)->ch_malloc_hdr)
#endif
#define KL_CONFIG_INFO_OFFSET(_nasid)                                   \
        (KL_CONFIG_HDR(_nasid)->ch_board_info)
#define KL_CONFIG_INFO_SET_OFFSET(_nasid, _off)                         \
        (KL_CONFIG_HDR(_nasid)->ch_board_info = (_off))

#define KL_CONFIG_INFO(_nasid)                                          \
        (lboard_t *)((KL_CONFIG_HDR(_nasid)->ch_board_info) ?           \
         NODE_OFFSET_TO_K1((_nasid), KL_CONFIG_HDR(_nasid)->ch_board_info) : \
         0)
#define KL_CONFIG_MAGIC(_nasid)         (KL_CONFIG_HDR(_nasid)->ch_magic)

#define KL_CONFIG_CHECK_MAGIC(_nasid)                                   \
        (KL_CONFIG_HDR(_nasid)->ch_magic == KLCFGINFO_MAGIC)

#define KL_CONFIG_HDR_INIT_MAGIC(_nasid)        \
                  (KL_CONFIG_HDR(_nasid)->ch_magic = KLCFGINFO_MAGIC)

/* --- New Macros for the changed kl_config_hdr_t structure --- */

#if defined(CONFIG_SGI_IO)
#define PTR_CH_MALLOC_HDR(_k)   ((klc_malloc_hdr_t *)\
                        ((__psunsigned_t)_k + (_k->ch_malloc_hdr_off)))
#else
#define PTR_CH_MALLOC_HDR(_k)   ((klc_malloc_hdr_t *)\
                        (unsigned long)_k + (_k->ch_malloc_hdr_off)))
#endif

#define KL_CONFIG_CH_MALLOC_HDR(_n)   PTR_CH_MALLOC_HDR(KL_CONFIG_HDR(_n))

#if defined(CONFIG_SGI_IO)
#define PTR_CH_CONS_INFO(_k)    ((console_t *)\
                        ((__psunsigned_t)_k + (_k->ch_cons_off)))
#else
#define PTR_CH_CONS_INFO(_k)    ((console_t *)\
                        ((unsigned long)_k + (_k->ch_cons_off)))
#endif

#define KL_CONFIG_CH_CONS_INFO(_n)   PTR_CH_CONS_INFO(KL_CONFIG_HDR(_n))

/* ------------------------------------------------------------- */

#define KL_CONFIG_INFO_START(_nasid)    \
        (klconf_off_t)(KLCONFIG_OFFSET(_nasid) + sizeof(kl_config_hdr_t))

#define KL_CONFIG_BOARD_NASID(_brd)     ((_brd)->brd_nasid)
#define KL_CONFIG_BOARD_SET_NEXT(_brd, _off)    ((_brd)->brd_next = (_off))

#define KL_CONFIG_DUPLICATE_BOARD(_brd) ((_brd)->brd_flags & DUPLICATE_BOARD)

#define XBOW_PORT_TYPE_HUB(_xbowp, _link)       \
               ((_xbowp)->xbow_port_info[(_link) - BASE_XBOW_PORT].port_flag & XBOW_PORT_HUB)
#define XBOW_PORT_TYPE_IO(_xbowp, _link)        \
               ((_xbowp)->xbow_port_info[(_link) - BASE_XBOW_PORT].port_flag & XBOW_PORT_IO)

#define XBOW_PORT_IS_ENABLED(_xbowp, _link)     \
               ((_xbowp)->xbow_port_info[(_link) - BASE_XBOW_PORT].port_flag & XBOW_PORT_ENABLE)
#define XBOW_PORT_NASID(_xbowp, _link)  \
               ((_xbowp)->xbow_port_info[(_link) - BASE_XBOW_PORT].port_nasid)

#define XBOW_PORT_IO     0x1
#define XBOW_PORT_HUB    0x2
#define XBOW_PORT_ENABLE 0x4

#define SN0_PORT_FENCE_SHFT     0
#define SN0_PORT_FENCE_MASK     (1 << SN0_PORT_FENCE_SHFT)

/*
 * The KLCONFIG area is organized as a LINKED LIST of BOARDs. A BOARD
 * can be either 'LOCAL' or 'REMOTE'. LOCAL means it is attached to
 * the LOCAL/current NODE. REMOTE means it is attached to a different
 * node.(TBD - Need a way to treat ROUTER boards.)
 *
 * There are 2 different structures to represent these boards -
 * lboard - Local board, rboard - remote board. These 2 structures
 * can be arbitrarily mixed in the LINKED LIST of BOARDs. (Refer
 * Figure below). The first byte of the rboard or lboard structure
 * is used to find out its type - no unions are used.
 * If it is a lboard, then the config info of this board will be found
 * on the local node. (LOCAL NODE BASE + offset value gives pointer to
 * the structure.
 * If it is a rboard, the local structure contains the node number
 * and the offset of the beginning of the LINKED LIST on the remote node.
 * The details of the hardware on a remote node can be built locally,
 * if required, by reading the LINKED LIST on the remote node and
 * ignoring all the rboards on that node.
 *
 * The local node uses the REMOTE NODE NUMBER + OFFSET to point to the
 * First board info on the remote node. The remote node list is
 * traversed as the local list, using the REMOTE BASE ADDRESS and not
 * the local base address and ignoring all rboard values.
 *
 *
 KLCONFIG

 +------------+      +------------+      +------------+      +------------+
 |  lboard    |  +-->|   lboard   |  +-->|   rboard   |  +-->|   lboard   |
 +------------+  |   +------------+  |   +------------+  |   +------------+
 | board info |  |   | board info |  |   |errinfo,bptr|  |   | board info |
 +------------+  |   +------------+  |   +------------+  |   +------------+
 | offset     |--+   |  offset    |--+   |  offset    |--+   |offset=NULL |
 +------------+      +------------+      +------------+      +------------+


 +------------+
 | board info |
 +------------+       +--------------------------------+
 | compt 1    |------>| type, rev, diaginfo, size ...  |  (CPU)
 +------------+       +--------------------------------+
 | compt 2    |--+
 +------------+  |    +--------------------------------+
 |  ...       |  +--->| type, rev, diaginfo, size ...  |  (MEM_BANK)
 +------------+       +--------------------------------+
 | errinfo    |--+
 +------------+  |    +--------------------------------+
                 +--->|r/l brd errinfo,compt err flags |
                      +--------------------------------+

 *
 * Each BOARD consists of COMPONENTs and the BOARD structure has
 * pointers (offsets) to its COMPONENT structure.
 * The COMPONENT structure has version info, size and speed info, revision,
 * error info and the NIC info. This structure can accommodate any
 * BOARD with arbitrary COMPONENT composition.
 *
 * The ERRORINFO part of each BOARD has error information
 * that describes errors about the BOARD itself. It also has flags to
 * indicate the COMPONENT(s) on the board that have errors. The error
 * information specific to the COMPONENT is present in the respective
 * COMPONENT structure.
 *
 * The ERRORINFO structure is also treated like a COMPONENT, ie. the
 * BOARD has pointers(offset) to the ERRORINFO structure. The rboard
 * structure also has a pointer to the ERRORINFO structure. This is
 * the place to store ERRORINFO about a REMOTE NODE, if the HUB on
 * that NODE is not working or if the REMOTE MEMORY is BAD. In cases where
 * only the CPU of the REMOTE NODE is disabled, the ERRORINFO pointer can
 * be a NODE NUMBER, REMOTE OFFSET combination, pointing to error info
 * which is present on the REMOTE NODE.(TBD)
 * REMOTE ERRINFO can be stored on any of the nearest nodes
 * or on all the nearest nodes.(TBD)
 * Like BOARD structures, REMOTE ERRINFO structures can be built locally
 * using the rboard errinfo pointer.
 *
 * In order to get useful information from this Data organization, a set of
 * interface routines are provided (TBD). The important thing to remember while
 * manipulating the structures, is that, the NODE number information should
 * be used. If the NODE is non-zero (remote) then each offset should
 * be added to the REMOTE BASE ADDR else it should be added to the LOCAL BASE ADDR.
 * This includes offsets for BOARDS, COMPONENTS and ERRORINFO.
 *
 * Note that these structures do not provide much info about connectivity.
 * That info will be part of HWGRAPH, which is an extension of the cfg_t
 * data structure. (ref IP27prom/cfg.h) It has to be extended to include
 * the IO part of the Network(TBD).
 *
 * The data structures below define the above concepts.
 */

/*
 * Values for CPU types
 */
#define KL_CPU_R4000            0x1     /* Standard R4000 */
#define KL_CPU_TFP              0x2     /* TFP processor */
#define KL_CPU_R10000           0x3     /* R10000 (T5) */
#define KL_CPU_NONE             (-1)    /* no cpu present in slot */

/*
 * IP27 BOARD classes
 */

#define KLCLASS_MASK    0xf0
#define KLCLASS_NONE    0x00
#define KLCLASS_NODE    0x10             /* CPU, Memory and HUB board */
#define KLCLASS_CPU     KLCLASS_NODE
#define KLCLASS_IO      0x20             /* BaseIO, 4 ch SCSI, ethernet, FDDI
                                            and the non-graphics widget boards */
#define KLCLASS_ROUTER  0x30             /* Router board */
#define KLCLASS_MIDPLANE 0x40            /* We need to treat this as a board
                                            so that we can record error info */
#define KLCLASS_GFX     0x50            /* graphics boards */

#define KLCLASS_PSEUDO_GFX      0x60    /* HDTV type cards that use a gfx
                                         * hw ifc to xtalk and are not gfx
                                         * class for sw purposes */

#define KLCLASS_MAX     7               /* Bump this if a new CLASS is added */
#define KLTYPE_MAX      10              /* Bump this if a new CLASS is added */

#define KLCLASS_UNKNOWN 0xf0

#define KLCLASS(_x) ((_x) & KLCLASS_MASK)

/*
 * IP27 board types
 */

#define KLTYPE_MASK     0x0f
#define KLTYPE_NONE     0x00
#define KLTYPE_EMPTY    0x00

#define KLTYPE_WEIRDCPU (KLCLASS_CPU | 0x0)
#define KLTYPE_IP27     (KLCLASS_CPU | 0x1) /* 2 CPUs(R10K) per board */

#define KLTYPE_WEIRDIO  (KLCLASS_IO  | 0x0)
#define KLTYPE_BASEIO   (KLCLASS_IO  | 0x1) /* IOC3, SuperIO, Bridge, SCSI */
#define KLTYPE_IO6      KLTYPE_BASEIO       /* Additional name */
#define KLTYPE_4CHSCSI  (KLCLASS_IO  | 0x2)
#define KLTYPE_MSCSI    KLTYPE_4CHSCSI      /* Additional name */
#define KLTYPE_ETHERNET (KLCLASS_IO  | 0x3)
#define KLTYPE_MENET    KLTYPE_ETHERNET     /* Additional name */
#define KLTYPE_FDDI     (KLCLASS_IO  | 0x4)
#define KLTYPE_UNUSED   (KLCLASS_IO  | 0x5) /* XXX UNUSED */
#define KLTYPE_HAROLD   (KLCLASS_IO  | 0x6) /* PCI SHOE BOX */
#define KLTYPE_PCI      KLTYPE_HAROLD
#define KLTYPE_VME      (KLCLASS_IO  | 0x7) /* Any 3rd party VME card */
#define KLTYPE_MIO      (KLCLASS_IO  | 0x8)
#define KLTYPE_FC       (KLCLASS_IO  | 0x9)
#define KLTYPE_LINC     (KLCLASS_IO  | 0xA)
#define KLTYPE_TPU      (KLCLASS_IO  | 0xB) /* Tensor Processing Unit */
#define KLTYPE_GSN_A    (KLCLASS_IO  | 0xC) /* Main GSN board */
#define KLTYPE_GSN_B    (KLCLASS_IO  | 0xD) /* Auxiliary GSN board */

#define KLTYPE_GFX      (KLCLASS_GFX | 0x0) /* unknown graphics type */
#define KLTYPE_GFX_KONA (KLCLASS_GFX | 0x1) /* KONA graphics on IP27 */
#define KLTYPE_GFX_MGRA (KLCLASS_GFX | 0x3) /* MGRAS graphics on IP27 */

#define KLTYPE_WEIRDROUTER (KLCLASS_ROUTER | 0x0)
#define KLTYPE_ROUTER     (KLCLASS_ROUTER | 0x1)
#define KLTYPE_ROUTER2    KLTYPE_ROUTER         /* Obsolete! */
#define KLTYPE_NULL_ROUTER (KLCLASS_ROUTER | 0x2)
#define KLTYPE_META_ROUTER (KLCLASS_ROUTER | 0x3)

#define KLTYPE_WEIRDMIDPLANE (KLCLASS_MIDPLANE | 0x0)
#define KLTYPE_MIDPLANE8  (KLCLASS_MIDPLANE | 0x1) /* 8 slot backplane */
#define KLTYPE_MIDPLANE    KLTYPE_MIDPLANE8
#define KLTYPE_PBRICK_XBOW      (KLCLASS_MIDPLANE | 0x2)

#define KLTYPE_IOBRICK          (KLCLASS_IOBRICK | 0x0)
#define KLTYPE_IBRICK           (KLCLASS_IOBRICK | 0x1)
#define KLTYPE_PBRICK           (KLCLASS_IOBRICK | 0x2)
#define KLTYPE_XBRICK           (KLCLASS_IOBRICK | 0x3)

#define KLTYPE_PBRICK_BRIDGE    KLTYPE_PBRICK

/* The value of type should be more than 8 so that hinv prints
 * out the board name from the NIC string. For values less than
 * 8 the name of the board needs to be hard coded in a few places.
 * When bringup started nic names had not standardized and so we
 * had to hard code. (For people interested in history.)
 */
#define KLTYPE_XTHD     (KLCLASS_PSEUDO_GFX | 0x9)

#define KLTYPE_UNKNOWN  (KLCLASS_UNKNOWN | 0xf)

#define KLTYPE(_x)      ((_x) & KLTYPE_MASK)
#define IS_MIO_PRESENT(l)       ((l->brd_type == KLTYPE_BASEIO) && \
                                 (l->brd_flags & SECOND_NIC_PRESENT))
#define IS_MIO_IOC3(l,n)        (IS_MIO_PRESENT(l) && (n > 2))

/*
 * board structures
 */

#define MAX_COMPTS_PER_BRD 24

#define LOCAL_BOARD 1
#define REMOTE_BOARD 2

#define LBOARD_STRUCT_VERSION   2

typedef struct lboard_s {
        klconf_off_t    brd_next;         /* Next BOARD */
        unsigned char   struct_type;      /* type of structure, local or remote */
        unsigned char   brd_type;         /* type+class */
        unsigned char   brd_sversion;     /* version of this structure */
        unsigned char   brd_brevision;    /* board revision */
        unsigned char   brd_promver;      /* board prom version, if any */
        unsigned char   brd_flags;        /* Enabled, Disabled etc */
        unsigned char   brd_slot;         /* slot number */
        unsigned short  brd_debugsw;      /* Debug switches */
        moduleid_t      brd_module;       /* module to which it belongs */
        partid_t        brd_partition;    /* Partition number */
        unsigned short  brd_diagval;      /* diagnostic value */
        unsigned short  brd_diagparm;     /* diagnostic parameter */
        unsigned char   brd_inventory;    /* inventory history */
        unsigned char   brd_numcompts;    /* Number of components */
        nic_t           brd_nic;          /* Number in CAN */
        nasid_t         brd_nasid;        /* passed parameter */
        klconf_off_t    brd_compts[MAX_COMPTS_PER_BRD]; /* pointers to COMPONENTS */
        klconf_off_t    brd_errinfo;      /* Board's error information */
        struct lboard_s *brd_parent;      /* Logical parent for this brd */
        vertex_hdl_t    brd_graph_link;   /* vertex hdl to connect extern compts */
        confidence_t    brd_confidence;   /* confidence that the board is bad */
        nasid_t         brd_owner;        /* who owns this board */
        unsigned char   brd_nic_flags;    /* To handle 8 more NICs */
        char            brd_name[32];
} lboard_t;


/*
 *      Make sure we pass back the calias space address for local boards.
 *      klconfig board traversal and error structure extraction defines.
 */

#define BOARD_SLOT(_brd)        ((_brd)->brd_slot)

#define KLCF_CLASS(_brd)        KLCLASS((_brd)->brd_type)
#define KLCF_TYPE(_brd)         KLTYPE((_brd)->brd_type)
#define KLCF_REMOTE(_brd)       (((_brd)->struct_type & LOCAL_BOARD) ? 0 : 1)
#define KLCF_NUM_COMPS(_brd)    ((_brd)->brd_numcompts)
#define KLCF_MODULE_ID(_brd)    ((_brd)->brd_module)

#ifdef FRUTEST

#define KLCF_NEXT(_brd)                 ((_brd)->brd_next ? (lboard_t *)((_brd)->brd_next):  NULL)
#define KLCF_COMP(_brd, _ndx)           (klinfo_t *)((_brd)->brd_compts[(_ndx)])
#define KLCF_COMP_ERROR(_brd, _comp)    (_brd = _brd , (_comp)->errinfo)

#else

#define KLCF_NEXT(_brd)         \
        ((_brd)->brd_next ?     \
         (lboard_t *)(NODE_OFFSET_TO_K1(NASID_GET(_brd), (_brd)->brd_next)):\
         NULL)
#define KLCF_COMP(_brd, _ndx)   \
                (klinfo_t *)(NODE_OFFSET_TO_K1(NASID_GET(_brd), \
                                               (_brd)->brd_compts[(_ndx)]))

#define KLCF_COMP_ERROR(_brd, _comp)    \
               (NODE_OFFSET_TO_K1(NASID_GET(_brd), (_comp)->errinfo))

#endif

#define KLCF_COMP_TYPE(_comp)   ((_comp)->struct_type)
#define KLCF_BRIDGE_W_ID(_comp) ((_comp)->physid)       /* Widget ID */



/*
 * Generic info structure. This stores common info about a
 * component.
 */

typedef struct klinfo_s {                  /* Generic info */
        unsigned char   struct_type;       /* type of this structure */
        unsigned char   struct_version;    /* version of this structure */
        unsigned char   flags;            /* Enabled, disabled etc */
        unsigned char   revision;         /* component revision */
        unsigned short  diagval;          /* result of diagnostics */
        unsigned short  diagparm;         /* diagnostic parameter */
        unsigned char   inventory;        /* previous inventory status */
        nic_t           nic;              /* MUst be aligned properly */
        unsigned char   physid;           /* physical id of component */
        unsigned int    virtid;           /* virtual id as seen by system */
        unsigned char   widid;            /* Widget id - if applicable */
        nasid_t         nasid;            /* node number - from parent */
        char            pad1;             /* pad out structure. */
        char            pad2;             /* pad out structure. */
        COMPONENT       *arcs_compt;      /* ptr to the arcs struct for ease*/
        klconf_off_t    errinfo;          /* component specific errors */
        unsigned short  pad3;             /* pci fields have moved over to */
        unsigned short  pad4;             /* klbri_t */
} klinfo_t ;

#define KLCONFIG_INFO_ENABLED(_i)       ((_i)->flags & KLINFO_ENABLE)
/*
 * Component structures.
 * Following are the currently identified components:
 *      CPU, HUB, MEM_BANK,
 *      XBOW(consists of 16 WIDGETs, each of which can be HUB or GRAPHICS or BRIDGE)
 *      BRIDGE, IOC3, SuperIO, SCSI, FDDI
 *      ROUTER
 *      GRAPHICS
 */
#define KLSTRUCT_UNKNOWN        0
#define KLSTRUCT_CPU            1
#define KLSTRUCT_HUB            2
#define KLSTRUCT_MEMBNK         3
#define KLSTRUCT_XBOW           4
#define KLSTRUCT_BRI            5
#define KLSTRUCT_IOC3           6
#define KLSTRUCT_PCI            7
#define KLSTRUCT_VME            8
#define KLSTRUCT_ROU            9
#define KLSTRUCT_GFX            10
#define KLSTRUCT_SCSI           11
#define KLSTRUCT_FDDI           12
#define KLSTRUCT_MIO            13
#define KLSTRUCT_DISK           14
#define KLSTRUCT_TAPE           15
#define KLSTRUCT_CDROM          16
#define KLSTRUCT_HUB_UART       17
#define KLSTRUCT_IOC3ENET       18
#define KLSTRUCT_IOC3UART       19
#define KLSTRUCT_UNUSED         20 /* XXX UNUSED */
#define KLSTRUCT_IOC3PCKM       21
#define KLSTRUCT_RAD            22
#define KLSTRUCT_HUB_TTY        23
#define KLSTRUCT_IOC3_TTY       24

/* Early Access IO proms are compatible
   only with KLSTRUCT values upto 24. */

#define KLSTRUCT_FIBERCHANNEL   25
#define KLSTRUCT_MOD_SERIAL_NUM 26
#define KLSTRUCT_IOC3MS         27
#define KLSTRUCT_TPU            28
#define KLSTRUCT_GSN_A          29
#define KLSTRUCT_GSN_B          30
#define KLSTRUCT_XTHD           31

/*
 * These are the indices of various components within a lboard structure.
 */

#define IP27_CPU0_INDEX 0
#define IP27_CPU1_INDEX 1
#define IP27_HUB_INDEX 2
#define IP27_MEM_INDEX 3

#define BASEIO_BRIDGE_INDEX 0
#define BASEIO_IOC3_INDEX 1
#define BASEIO_SCSI1_INDEX 2
#define BASEIO_SCSI2_INDEX 3

#define MIDPLANE_XBOW_INDEX 0
#define ROUTER_COMPONENT_INDEX 0

#define CH4SCSI_BRIDGE_INDEX 0

/* Info holders for various hardware components */

typedef u64 *pci_t;
typedef u64 *vmeb_t;
typedef u64 *vmed_t;
typedef u64 *fddi_t;
typedef u64 *scsi_t;
typedef u64 *mio_t;
typedef u64 *graphics_t;
typedef u64 *router_t;

/*
 * The port info in ip27_cfg area translates to a lboart_t in the
 * KLCONFIG area. But since KLCONFIG does not use pointers, lboart_t
 * is stored in terms of a nasid and a offset from start of KLCONFIG
 * area  on that nasid.
 */
typedef struct klport_s {
        nasid_t         port_nasid;
        unsigned char   port_flag;
        klconf_off_t    port_offset;
} klport_t;

#if 0
/*
 * This is very similar to the klport_s but instead of having a componant
 * offset it has a board offset.
 */
typedef struct klxbow_port_s {
        nasid_t         port_nasid;
        unsigned char   port_flag;
        klconf_off_t    board_offset;
} klxbow_port_t;
#endif

typedef struct klcpu_s {                          /* CPU */
        klinfo_t        cpu_info;
        unsigned short  cpu_prid;       /* Processor PRID value */
        unsigned short  cpu_fpirr;      /* FPU IRR value */
        unsigned short  cpu_speed;      /* Speed in MHZ */
        unsigned short  cpu_scachesz;   /* secondary cache size in MB */
        unsigned short  cpu_scachespeed;/* secondary cache speed in MHz */
} klcpu_t ;

#define CPU_STRUCT_VERSION   2

typedef struct klhub_s {                        /* HUB */
        klinfo_t        hub_info;
        uint            hub_flags;              /* PCFG_HUB_xxx flags */
        klport_t        hub_port;               /* hub is connected to this */
        nic_t           hub_box_nic;            /* nic of containing box */
        klconf_off_t    hub_mfg_nic;            /* MFG NIC string */
        u64             hub_speed;              /* Speed of hub in HZ */
} klhub_t ;

typedef struct klhub_uart_s {                   /* HUB */
        klinfo_t        hubuart_info;
        uint            hubuart_flags;          /* PCFG_HUB_xxx flags */
        nic_t           hubuart_box_nic;        /* nic of containing box */
} klhub_uart_t ;

#define MEMORY_STRUCT_VERSION   2

typedef struct klmembnk_s {                     /* MEMORY BANK */
        klinfo_t        membnk_info;
        short           membnk_memsz;           /* Total memory in megabytes */
        short           membnk_dimm_select; /* bank to physical addr mapping*/
        short           membnk_bnksz[MD_MEM_BANKS]; /* Memory bank sizes */
        short           membnk_attr;
} klmembnk_t ;

#define KLCONFIG_MEMBNK_SIZE(_info, _bank)      \
                            ((_info)->membnk_bnksz[(_bank)])


#define MEMBNK_PREMIUM 1
#define KLCONFIG_MEMBNK_PREMIUM(_info, _bank)   \
                            ((_info)->membnk_attr & (MEMBNK_PREMIUM << (_bank)))

#define MAX_SERIAL_NUM_SIZE 10

typedef struct klmod_serial_num_s {
      klinfo_t        snum_info;
      union {
              char snum_str[MAX_SERIAL_NUM_SIZE];
              unsigned long long       snum_int;
      } snum;
} klmod_serial_num_t;

/* Macros needed to access serial number structure in lboard_t.
   Hard coded values are necessary since we cannot treat
   serial number struct as a component without losing compatibility
   between prom versions. */

#define GET_SNUM_COMP(_l)       ((klmod_serial_num_t *)\
                                KLCF_COMP(_l, _l->brd_numcompts))

#define MAX_XBOW_LINKS 16

typedef struct klxbow_s {                          /* XBOW */
        klinfo_t        xbow_info ;
        klport_t        xbow_port_info[MAX_XBOW_LINKS] ; /* Module number */
        int             xbow_master_hub_link;
        /* type of brd connected+component struct ptr+flags */
} klxbow_t ;

#define MAX_PCI_SLOTS 8

typedef struct klpci_device_s {
        s32     pci_device_id;  /* 32 bits of vendor/device ID. */
        s32     pci_device_pad; /* 32 bits of padding. */
} klpci_device_t;

#define BRIDGE_STRUCT_VERSION   2

typedef struct klbri_s {                          /* BRIDGE */
        klinfo_t        bri_info ;
        unsigned char   bri_eprominfo ;    /* IO6prom connected to bridge */
        unsigned char   bri_bustype ;      /* PCI/VME BUS bridge/GIO */
        pci_t           pci_specific  ;    /* PCI Board config info */
        klpci_device_t  bri_devices[MAX_PCI_DEVS] ;     /* PCI IDs */
        klconf_off_t    bri_mfg_nic ;
} klbri_t ;

#define MAX_IOC3_TTY    2

typedef struct klioc3_s {                          /* IOC3 */
        klinfo_t        ioc3_info ;
        unsigned char   ioc3_ssram ;        /* Info about ssram */
        unsigned char   ioc3_nvram ;        /* Info about nvram */
        klinfo_t        ioc3_superio ;      /* Info about superio */
        klconf_off_t    ioc3_tty_off ;
        klinfo_t        ioc3_enet ;
        klconf_off_t    ioc3_enet_off ;
        klconf_off_t    ioc3_kbd_off ;
} klioc3_t ;

#define MAX_VME_SLOTS 8

typedef struct klvmeb_s {                          /* VME BRIDGE - PCI CTLR */
        klinfo_t        vmeb_info ;
        vmeb_t          vmeb_specific ;
        klconf_off_t    vmeb_brdinfo[MAX_VME_SLOTS]   ;    /* VME Board config info */
} klvmeb_t ;

typedef struct klvmed_s {                          /* VME DEVICE - VME BOARD */
        klinfo_t        vmed_info ;
        vmed_t          vmed_specific ;
        klconf_off_t    vmed_brdinfo[MAX_VME_SLOTS]   ;    /* VME Board config info */
} klvmed_t ;

#define ROUTER_VECTOR_VERS      2

/* XXX - Don't we need the number of ports here?!? */
typedef struct klrou_s {                          /* ROUTER */
        klinfo_t        rou_info ;
        uint            rou_flags ;           /* PCFG_ROUTER_xxx flags */
        nic_t           rou_box_nic ;         /* nic of the containing module */
        klport_t        rou_port[MAX_ROUTER_PORTS + 1] ; /* array index 1 to 6 */
        klconf_off_t    rou_mfg_nic ;     /* MFG NIC string */
        u64     rou_vector;       /* vector from master node */
} klrou_t ;

/*
 *  Graphics Controller/Device
 *
 *  (IP27/IO6) Prom versions 6.13 (and 6.5.1 kernels) and earlier
 *  used a couple different structures to store graphics information.
 *  For compatibility reasons, the newer data structure preserves some
 *  of the layout so that fields that are used in the old versions remain
 *  in the same place (with the same info).  Determination of what version
 *  of this structure we have is done by checking the cookie field.
 */
#define KLGFX_COOKIE    0x0c0de000

typedef struct klgfx_s {                /* GRAPHICS Device */
        klinfo_t        gfx_info;
        klconf_off_t    old_gndevs;     /* for compatibility with older proms */
        klconf_off_t    old_gdoff0;     /* for compatibility with older proms */
        uint            cookie;         /* for compatibility with older proms */
        uint            moduleslot;
        struct klgfx_s  *gfx_next_pipe;
        graphics_t      gfx_specific;
        klconf_off_t    pad0;           /* for compatibility with older proms */
        klconf_off_t    gfx_mfg_nic;
} klgfx_t;

typedef struct klxthd_s {
        klinfo_t        xthd_info ;
        klconf_off_t    xthd_mfg_nic ;        /* MFG NIC string */
} klxthd_t ;

typedef struct kltpu_s {                     /* TPU board */
        klinfo_t        tpu_info ;
        klconf_off_t    tpu_mfg_nic ;        /* MFG NIC string */
} kltpu_t ;

typedef struct klgsn_s {                     /* GSN board */
        klinfo_t        gsn_info ;
        klconf_off_t    gsn_mfg_nic ;        /* MFG NIC string */
} klgsn_t ;

#define MAX_SCSI_DEVS 16

/*
 * NOTE: THis is the max sized kl* structure and is used in klmalloc.c
 * to allocate space of type COMPONENT. Make sure that if the size of
 * any other component struct becomes more than this, then redefine
 * that as the size to be klmalloced.
 */

typedef struct klscsi_s {                          /* SCSI Controller */
        klinfo_t        scsi_info ;
        scsi_t          scsi_specific   ;
        unsigned char   scsi_numdevs ;
        klconf_off_t    scsi_devinfo[MAX_SCSI_DEVS] ;
} klscsi_t ;

typedef struct klscdev_s {                          /* SCSI device */
        klinfo_t        scdev_info ;
        struct scsidisk_data *scdev_cfg ; /* driver fills up this */
} klscdev_t ;

typedef struct klttydev_s {                          /* TTY device */
        klinfo_t        ttydev_info ;
        struct terminal_data *ttydev_cfg ; /* driver fills up this */
} klttydev_t ;

typedef struct klenetdev_s {                          /* ENET device */
        klinfo_t        enetdev_info ;
        struct net_data *enetdev_cfg ; /* driver fills up this */
} klenetdev_t ;

typedef struct klkbddev_s {                          /* KBD device */
        klinfo_t        kbddev_info ;
        struct keyboard_data *kbddev_cfg ; /* driver fills up this */
} klkbddev_t ;

typedef struct klmsdev_s {                          /* mouse device */
        klinfo_t        msdev_info ;
        void            *msdev_cfg ;
} klmsdev_t ;

#define MAX_FDDI_DEVS 10 /* XXX Is this true */

typedef struct klfddi_s {                          /* FDDI */
        klinfo_t        fddi_info ;
        fddi_t          fddi_specific ;
        klconf_off_t    fddi_devinfo[MAX_FDDI_DEVS] ;
} klfddi_t ;

typedef struct klmio_s {                          /* MIO */
        klinfo_t        mio_info ;
        mio_t           mio_specific   ;
} klmio_t ;


typedef union klcomp_s {
        klcpu_t         kc_cpu;
        klhub_t         kc_hub;
        klmembnk_t      kc_mem;
        klxbow_t        kc_xbow;
        klbri_t         kc_bri;
        klioc3_t        kc_ioc3;
        klvmeb_t        kc_vmeb;
        klvmed_t        kc_vmed;
        klrou_t         kc_rou;
        klgfx_t         kc_gfx;
        klscsi_t        kc_scsi;
        klscdev_t       kc_scsi_dev;
        klfddi_t        kc_fddi;
        klmio_t         kc_mio;
        klmod_serial_num_t kc_snum ;
} klcomp_t;

typedef union kldev_s {      /* for device structure allocation */
        klscdev_t       kc_scsi_dev ;
        klttydev_t      kc_tty_dev ;
        klenetdev_t     kc_enet_dev ;
        klkbddev_t      kc_kbd_dev ;
} kldev_t ;

/* Data structure interface routines. TBD */

/* Include launch info in this file itself? TBD */

/*
 * TBD - Can the ARCS and device driver related info also be included in the
 * KLCONFIG area. On the IO4PROM, prom device driver info is part of cfgnode_t
 * structure, viz private to the IO4prom.
 */

/*
 * TBD - Allocation issues.
 *
 * Do we need to Mark off sepatate heaps for lboard_t, rboard_t, component,
 * errinfo and allocate from them, or have a single heap and allocate all
 * structures from it. Debug is easier in the former method since we can
 * dump all similar structs in one command, but there will be lots of holes,
 * in memory and max limits are needed for number of structures.
 * Another way to make it organized, is to have a union of all components
 * and allocate a aligned chunk of memory greater than the biggest
 * component.
 */

typedef union {
        lboard_t *lbinfo ;
} biptr_t ;


#define BRI_PER_XBOW 6
#define PCI_PER_BRI  8
#define DEV_PER_PCI  16


/* Virtual dipswitch values (starting from switch "7"): */

#define VDS_NOGFX               0x8000  /* Don't enable gfx and autoboot */
#define VDS_NOMP                0x100   /* Don't start slave processors */
#define VDS_MANUMODE            0x80    /* Manufacturing mode */
#define VDS_NOARB               0x40    /* No bootmaster arbitration */
#define VDS_PODMODE             0x20    /* Go straight to POD mode */
#define VDS_NO_DIAGS            0x10    /* Don't run any diags after BM arb */
#define VDS_DEFAULTS            0x08    /* Use default environment values */
#define VDS_NOMEMCLEAR          0x04    /* Don't run mem cfg code */
#define VDS_2ND_IO4             0x02    /* Boot from the second IO4 */
#define VDS_DEBUG_PROM          0x01    /* Print PROM debugging messages */

/* external declarations of Linux kernel functions. */

extern lboard_t *find_lboard(lboard_t *start, unsigned char type);
extern klinfo_t *find_component(lboard_t *brd, klinfo_t *kli, unsigned char type);
extern klinfo_t *find_first_component(lboard_t *brd, unsigned char type);
extern klcpu_t *nasid_slice_to_cpuinfo(nasid_t, int);
extern lboard_t *find_lboard_class(lboard_t *start, unsigned char brd_class);


#if defined(CONFIG_SGI_IO)
extern xwidgetnum_t nodevertex_widgetnum_get(vertex_hdl_t node_vtx);
extern vertex_hdl_t nodevertex_xbow_peer_get(vertex_hdl_t node_vtx);
extern lboard_t *find_gfxpipe(int pipenum);
extern void setup_gfxpipe_link(vertex_hdl_t vhdl,int pipenum);
extern lboard_t *find_lboard_module_class(lboard_t *start, moduleid_t mod,
                                               unsigned char brd_class);
extern lboard_t *find_nic_lboard(lboard_t *, nic_t);
extern lboard_t *find_nic_type_lboard(nasid_t, unsigned char, nic_t);
extern lboard_t *find_lboard_modslot(lboard_t *start, moduleid_t mod, slotid_t slot);
extern lboard_t *find_lboard_module(lboard_t *start, moduleid_t mod);
extern lboard_t *get_board_name(nasid_t nasid, moduleid_t mod, slotid_t slot, char *name);
extern int      config_find_nic_router(nasid_t, nic_t, lboard_t **, klrou_t**);
extern int      config_find_nic_hub(nasid_t, nic_t, lboard_t **, klhub_t**);
extern int      config_find_xbow(nasid_t, lboard_t **, klxbow_t**);
extern klcpu_t *get_cpuinfo(cpuid_t cpu);
extern int      update_klcfg_cpuinfo(nasid_t, int);
extern void     board_to_path(lboard_t *brd, char *path);
extern moduleid_t get_module_id(nasid_t nasid);
extern void     nic_name_convert(char *old_name, char *new_name);
extern int      module_brds(nasid_t nasid, lboard_t **module_brds, int n);
extern lboard_t *brd_from_key(ulong_t key);
extern void     device_component_canonical_name_get(lboard_t *,klinfo_t *,
                                                    char *);
extern int      board_serial_number_get(lboard_t *,char *);
extern int      is_master_baseio(nasid_t,moduleid_t,slotid_t);
extern nasid_t  get_actual_nasid(lboard_t *brd) ;
extern net_vec_t klcfg_discover_route(lboard_t *, lboard_t *, int);
#else   /* CONFIG_SGI_IO */
extern klcpu_t *sn_get_cpuinfo(cpuid_t cpu);
#endif  /* CONFIG_SGI_IO */

#endif /* _ASM_SN_KLCONFIG_H */