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/* $Id$
*
* 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.
*
* Copyright (c) 1992-1997,2000-2003 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/types.h>
#include <linux/slab.h>
#include <asm/sn/sgi.h>
#include <asm/sn/io.h>
#include <asm/sn/iograph.h>
#include <asm/sn/invent.h>
#include <asm/sn/hcl.h>
#include <asm/sn/hcl_util.h>
#include <asm/sn/labelcl.h>
#include <asm/sn/eeprom.h>
#include <asm/sn/router.h>
#include <asm/sn/module.h>
#include <asm/sn/ksys/l1.h>
#include <asm/sn/nodepda.h>
#include <asm/sn/clksupport.h>
#include <asm/sn/sn_cpuid.h>
#include <asm/sn/sn_sal.h>
#include <linux/ctype.h>
#define ELSC_TIMEOUT 1000000 /* ELSC response timeout (usec) */
#define LOCK_TIMEOUT 5000000 /* Hub lock timeout (usec) */
#define hub_cpu_get() 0
#define LBYTE(caddr) (*(char *) caddr)
extern char *bcopy(const char * src, char * dest, int count);
#define LDEBUG 0
/*
* ELSC data is in NVRAM page 7 at the following offsets.
*/
#define NVRAM_MAGIC_AD 0x700 /* magic number used for init */
#define NVRAM_PASS_WD 0x701 /* password (4 bytes in length) */
#define NVRAM_DBG1 0x705 /* virtual XOR debug switches */
#define NVRAM_DBG2 0x706 /* physical XOR debug switches */
#define NVRAM_CFG 0x707 /* ELSC Configuration info */
#define NVRAM_MODULE 0x708 /* system module number */
#define NVRAM_BIST_FLG 0x709 /* BIST flags (2 bits per nodeboard) */
#define NVRAM_PARTITION 0x70a /* module's partition id */
#define NVRAM_DOMAIN 0x70b /* module's domain id */
#define NVRAM_CLUSTER 0x70c /* module's cluster id */
#define NVRAM_CELL 0x70d /* module's cellid */
#define NVRAM_MAGIC_NO 0x37 /* value of magic number */
#define NVRAM_SIZE 16 /* 16 bytes in nvram */
/* elsc_display_line writes up to 12 characters to either the top or bottom
* line of the L1 display. line points to a buffer containing the message
* to be displayed. The zero-based line number is specified by lnum (so
* lnum == 0 specifies the top line and lnum == 1 specifies the bottom).
* Lines longer than 12 characters, or line numbers not less than
* L1_DISPLAY_LINES, cause elsc_display_line to return an error.
*/
int elsc_display_line(nasid_t nasid, char *line, int lnum)
{
return 0;
}
/*
* iobrick routines
*/
/* iobrick_rack_bay_type_get fills in the three int * arguments with the
* rack number, bay number and brick type of the L1 being addressed. Note
* that if the L1 operation fails and this function returns an error value,
* garbage may be written to brick_type.
*/
int iobrick_rack_bay_type_get( nasid_t nasid, uint *rack,
uint *bay, uint *brick_type )
{
int result = 0;
if ( ia64_sn_sysctl_iobrick_module_get(nasid, &result) )
return( ELSC_ERROR_CMD_SEND );
*rack = (result & L1_ADDR_RACK_MASK) >> L1_ADDR_RACK_SHFT;
*bay = (result & L1_ADDR_BAY_MASK) >> L1_ADDR_BAY_SHFT;
*brick_type = (result & L1_ADDR_TYPE_MASK) >> L1_ADDR_TYPE_SHFT;
*brick_type = toupper(*brick_type);
return 0;
}
int iomoduleid_get(nasid_t nasid)
{
int result = 0;
if ( ia64_sn_sysctl_iobrick_module_get(nasid, &result) )
return( ELSC_ERROR_CMD_SEND );
return result;
}
int iobrick_module_get(nasid_t nasid)
{
uint rnum, rack, bay, brick_type, t;
int ret;
/* construct module ID from rack and slot info */
if ((ret = iobrick_rack_bay_type_get(nasid, &rnum, &bay, &brick_type)) < 0)
return ret;
if (bay > MODULE_BPOS_MASK >> MODULE_BPOS_SHFT)
return ELSC_ERROR_MODULE;
/* Build a moduleid_t-compatible rack number */
rack = 0;
t = rnum / 100; /* rack class (CPU/IO) */
if (t > RACK_CLASS_MASK(rack) >> RACK_CLASS_SHFT(rack))
return ELSC_ERROR_MODULE;
RACK_ADD_CLASS(rack, t);
rnum %= 100;
t = rnum / 10; /* rack group */
if (t > RACK_GROUP_MASK(rack) >> RACK_GROUP_SHFT(rack))
return ELSC_ERROR_MODULE;
RACK_ADD_GROUP(rack, t);
t = rnum % 10; /* rack number (one-based) */
if (t-1 > RACK_NUM_MASK(rack) >> RACK_NUM_SHFT(rack))
return ELSC_ERROR_MODULE;
RACK_ADD_NUM(rack, t);
switch( brick_type ) {
case 'I':
brick_type = MODULE_IBRICK; break;
case 'P':
brick_type = MODULE_PBRICK; break;
case 'X':
brick_type = MODULE_XBRICK; break;
}
ret = RBT_TO_MODULE(rack, bay, brick_type);
return ret;
}
#ifdef CONFIG_PCI
/*
* iobrick_module_get_nasid() returns a module_id which has the brick
* type encoded in bits 15-12, but this is not the true brick type...
* The module_id returned by iobrick_module_get_nasid() is modified
* to make a PEBRICKs & PXBRICKs look like a PBRICK. So this routine
* iobrick_type_get_nasid() returns the true unmodified brick type.
*/
int
iobrick_type_get_nasid(nasid_t nasid)
{
uint rack, bay, type;
int t, ret;
extern char brick_types[];
if ((ret = iobrick_rack_bay_type_get(nasid, &rack, &bay, &type)) < 0) {
return ret;
}
/* convert brick_type to lower case */
if ((type >= 'A') && (type <= 'Z'))
type = type - 'A' + 'a';
/* convert to a module.h brick type */
for( t = 0; t < MAX_BRICK_TYPES; t++ ) {
if( brick_types[t] == type )
return t;
}
return -1; /* unknown brick */
}
#endif
int iobrick_module_get_nasid(nasid_t nasid)
{
int io_moduleid;
#ifdef PIC_LATER
uint rack, bay;
if (PEBRICK_NODE(nasid)) {
if (peer_iobrick_rack_bay_get(nasid, &rack, &bay)) {
printf("Could not read rack and bay location "
"of PEBrick at nasid %d\n", nasid);
}
io_moduleid = peer_iobrick_module_get(sc, rack, bay);
}
#endif /* PIC_LATER */
io_moduleid = iobrick_module_get(nasid);
return io_moduleid;
}
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