projects / mirror_ubuntu-zesty-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 | ||
| 1da177e4 | 14 | |
| 70342287 | 15 | #ifndef SN0XXL /* 128 cpu SMP max */ |
| 1da177e4 LT |
16 | /* |
| 17 | * This is the maximum number of nodes that can be part of a kernel. | |
| 18 | * Effectively, it's the maximum number of compact node ids (cnodeid_t). | |
| 19 | */ | |
| 70342287 | 20 | #define MAX_COMPACT_NODES 64 |
| 1da177e4 LT |
21 | |
| 22 | /* | |
| 23 | * MAXCPUS refers to the maximum number of CPUs in a single kernel. | |
| 24 | * This is not necessarily the same as MAXNODES * CPUS_PER_NODE | |
| 25 | */ | |
| 70342287 | 26 | #define MAXCPUS 128 |
| 1da177e4 LT |
27 | |
| 28 | #else /* SN0XXL system */ | |
| 29 | ||
| 70342287 RB |
30 | #define MAX_COMPACT_NODES 128 |
| 31 | #define MAXCPUS 256 | |
| 1da177e4 LT |
32 | |
| 33 | #endif /* SN0XXL */ | |
| 34 | ||
| 35 | /* | |
| 36 | * This is the maximum number of NASIDS that can be present in a system. | |
| 37 | * (Highest NASID plus one.) | |
| 38 | */ | |
| 39 | #define MAX_NASIDS 256 | |
| 40 | ||
| 41 | /* | |
| 42 | * MAX_REGIONS refers to the maximum number of hardware partitioned regions. | |
| 43 | */ | |
| 70342287 RB |
44 | #define MAX_REGIONS 64 |
| 45 | #define MAX_NONPREMIUM_REGIONS 16 | |
| 46 | #define MAX_PREMIUM_REGIONS MAX_REGIONS | |
| 1da177e4 LT |
47 | |
| 48 | /* | |
| 49 | * MAX_PARITIONS refers to the maximum number of logically defined | |
| 50 | * partitions the system can support. | |
| 51 | */ | |
| 52 | #define MAX_PARTITIONS MAX_REGIONS | |
| 53 | ||
| 1da177e4 LT |
54 | #define NASID_MASK_BYTES ((MAX_NASIDS + 7) / 8) |
| 55 | ||
| 56 | /* | |
| 57 | * Slot constants for SN0 | |
| 58 | */ | |
| aa9772e3 | 59 | #ifdef CONFIG_SGI_SN_N_MODE |
| 70342287 | 60 | #define MAX_MEM_SLOTS 16 /* max slots per node */ |
| f456acae | 61 | #else /* !CONFIG_SGI_SN_N_MODE, assume CONFIG_SGI_SN_M_MODE */ |
| 70342287 | 62 | #define MAX_MEM_SLOTS 32 /* max slots per node */ |
| f456acae | 63 | #endif /* CONFIG_SGI_SN_M_MODE */ |
| 1da177e4 | 64 | |
| 70342287 | 65 | #define SLOT_SHIFT (27) |
| 1da177e4 | 66 | #define SLOT_MIN_MEM_SIZE (32*1024*1024) |
| 1da177e4 LT |
67 | |
| 68 | #define CPUS_PER_NODE 2 /* CPUs on a single hub */ | |
| 69 | #define CPUS_PER_NODE_SHFT 1 /* Bits to shift in the node number */ | |
| 70 | #define CPUS_PER_SUBNODE 2 /* CPUs on a single hub PI */ | |
| 71 | ||
| 72 | #endif /* _ASM_SN_SN0_ARCH_H */ |