/*
* 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 .
*
* SGI IP27 specific setup .
*
* Copyright ( C ) 1995 - 1997 , 1999 Silcon Graphics , Inc .
* Copyright ( C ) 1999 Ralf Baechle ( ralf @ gnu . org )
*/
#ifndef _ASM_SN_SN0_ARCH_H
#define _ASM_SN_SN0_ARCH_H
/*
* MAXCPUS refers to the maximum number of CPUs in a single kernel .
* This is not necessarily the same as MAXNODES * CPUS_PER_NODE
*/
#define MAXCPUS (MAX_NUMNODES * CPUS_PER_NODE)
/*
* This is the maximum number of NASIDS that can be present in a system .
* ( Highest NASID plus one . )
*/
#define MAX_NASIDS 256
/*
* MAX_REGIONS refers to the maximum number of hardware partitioned regions .
*/
#define MAX_REGIONS 64
#define MAX_NONPREMIUM_REGIONS 16
#define MAX_PREMIUM_REGIONS MAX_REGIONS
/*
* MAX_PARITIONS refers to the maximum number of logically defined
* partitions the system can support .
*/
#define MAX_PARTITIONS MAX_REGIONS
#define NASID_MASK_BYTES ((MAX_NASIDS + 7 ) / 8 )
/*
* Slot constants for SN0
*/
#ifdef CONFIG_SGI_SN_N_MODE
#define MAX_MEM_SLOTS 16 /* max slots per node */
#else /* !CONFIG_SGI_SN_N_MODE, assume CONFIG_SGI_SN_M_MODE */
#define MAX_MEM_SLOTS 32 /* max slots per node */
#endif /* CONFIG_SGI_SN_M_MODE */
#define SLOT_SHIFT (27 )
#define SLOT_MIN_MEM_SIZE (32 *1024 *1024 )
#define CPUS_PER_NODE 2 /* CPUs on a single hub */
#endif /* _ASM_SN_SN0_ARCH_H */
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