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1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * SGI IP27 specific setup.
7 *
8 * Copyright (C) 1995 - 1997, 1999 Silcon Graphics, Inc.
9 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
10 */
11#ifndef _ASM_SN_SN0_ARCH_H
12#define _ASM_SN_SN0_ARCH_H
13
14
15/*
16 * MAXCPUS refers to the maximum number of CPUs in a single kernel.
17 * This is not necessarily the same as MAXNODES * CPUS_PER_NODE
18 */
19#define MAXCPUS (MAX_NUMNODES * CPUS_PER_NODE)
20
21/*
22 * This is the maximum number of NASIDS that can be present in a system.
23 * (Highest NASID plus one.)
24 */
25#define MAX_NASIDS 256
26
27/*
28 * MAX_REGIONS refers to the maximum number of hardware partitioned regions.
29 */
30#define MAX_REGIONS 64
31#define MAX_NONPREMIUM_REGIONS 16
32#define MAX_PREMIUM_REGIONS MAX_REGIONS
33
34/*
35 * MAX_PARITIONS refers to the maximum number of logically defined
36 * partitions the system can support.
37 */
38#define MAX_PARTITIONS MAX_REGIONS
39
40#define NASID_MASK_BYTES ((MAX_NASIDS + 7) / 8)
41
42/*
43 * Slot constants for SN0
44 */
45#ifdef CONFIG_SGI_SN_N_MODE
46#define MAX_MEM_SLOTS 16 /* max slots per node */
47#else /* !CONFIG_SGI_SN_N_MODE, assume CONFIG_SGI_SN_M_MODE */
48#define MAX_MEM_SLOTS 32 /* max slots per node */
49#endif /* CONFIG_SGI_SN_M_MODE */
50
51#define SLOT_SHIFT (27)
52#define SLOT_MIN_MEM_SIZE (32*1024*1024)
53
54#define CPUS_PER_NODE 2 /* CPUs on a single hub */
55
56#endif /* _ASM_SN_SN0_ARCH_H */
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * SGI IP27 specific setup.
7 *
8 * Copyright (C) 1995 - 1997, 1999 Silcon Graphics, Inc.
9 * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
10 */
11#ifndef _ASM_SN_SN0_ARCH_H
12#define _ASM_SN_SN0_ARCH_H
13
14
15/*
16 * MAXCPUS refers to the maximum number of CPUs in a single kernel.
17 * This is not necessarily the same as MAXNODES * CPUS_PER_NODE
18 */
19#define MAXCPUS (MAX_NUMNODES * CPUS_PER_NODE)
20
21/*
22 * This is the maximum number of NASIDS that can be present in a system.
23 * (Highest NASID plus one.)
24 */
25#define MAX_NASIDS 256
26
27/*
28 * MAX_REGIONS refers to the maximum number of hardware partitioned regions.
29 */
30#define MAX_REGIONS 64
31#define MAX_NONPREMIUM_REGIONS 16
32#define MAX_PREMIUM_REGIONS MAX_REGIONS
33
34/*
35 * MAX_PARITIONS refers to the maximum number of logically defined
36 * partitions the system can support.
37 */
38#define MAX_PARTITIONS MAX_REGIONS
39
40#define NASID_MASK_BYTES ((MAX_NASIDS + 7) / 8)
41
42/*
43 * Slot constants for SN0
44 */
45#ifdef CONFIG_SGI_SN_N_MODE
46#define MAX_MEM_SLOTS 16 /* max slots per node */
47#else /* !CONFIG_SGI_SN_N_MODE, assume CONFIG_SGI_SN_M_MODE */
48#define MAX_MEM_SLOTS 32 /* max slots per node */
49#endif /* CONFIG_SGI_SN_M_MODE */
50
51#define SLOT_SHIFT (27)
52#define SLOT_MIN_MEM_SIZE (32*1024*1024)
53
54#define CPUS_PER_NODE 2 /* CPUs on a single hub */
55
56#endif /* _ASM_SN_SN0_ARCH_H */