/* * 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 */