klconfig.h

linux-2.4.29操作系统的源码

/*
 * 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 accomodate 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.