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/*
*
* 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) 2000-2003 Silicon Graphics, Inc. All rights reserved.
*/
#include <linux/config.h>
/*
* Structure of the mem config of the node as a SN MI reg
* Medusa supports this reg config.
*
* BankSize nibble to bank size mapping
*
* 1 - 64 MB
* 2 - 128 MB
* 3 - 256 MB
* 4 - 512 MB
* 5 - 1024 MB (1GB)
*/
#define MBSHIFT 20
#ifdef SGI_SN2
typedef struct node_memmap_s
{
unsigned int b0size :3, /* 0-2 bank 0 size */
b0dou :1, /* 3 bank 0 is 2-sided */
ena0 :1, /* 4 bank 0 enabled */
r0 :3, /* 5-7 reserved */
b1size :3, /* 8-10 bank 1 size */
b1dou :1, /* 11 bank 1 is 2-sided */
ena1 :1, /* 12 bank 1 enabled */
r1 :3, /* 13-15 reserved */
b2size :3, /* 16-18 bank 2 size */
b2dou :1, /* 19 bank 1 is 2-sided */
ena2 :1, /* 20 bank 2 enabled */
r2 :3, /* 21-23 reserved */
b3size :3, /* 24-26 bank 3 size */
b3dou :1, /* 27 bank 3 is 2-sided */
ena3 :1, /* 28 bank 3 enabled */
r3 :3; /* 29-31 reserved */
} node_memmap_t ;
#define SN2_BANK_SIZE_SHIFT (MBSHIFT+6) /* 64 MB */
#define BankPresent(bsize) (bsize<6)
#define BankSizeBytes(bsize) (BankPresent(bsize) ? 1UL<<((bsize)+SN2_BANK_SIZE_SHIFT) : 0)
#define MD_BANKS_PER_NODE 4
#define MD_BANKSIZE (1UL << 34)
#endif
typedef struct sn_memmap_s
{
short nasid ;
short cpuconfig;
node_memmap_t node_memmap ;
} sn_memmap_t ;
typedef struct sn_config_s
{
int cpus;
int nodes;
sn_memmap_t memmap[1]; /* start of array */
} sn_config_t;
extern void build_init(unsigned long);
extern int build_efi_memmap(void *, int);
extern int GetNumNodes(void);
extern int GetNumCpus(void);
extern int IsCpuPresent(int, int);
extern int GetNasid(int);
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