| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 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_ARCH_H |
| 12 | #define _ASM_SN_ARCH_H |
| 13 | |
| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 14 | #include <linux/types.h> |
| 15 | #include <asm/sn/types.h> |
| 16 | #ifdef CONFIG_SGI_IP27 |
| 17 | #include <asm/sn/sn0/arch.h> |
| 18 | #endif |
| 19 | |
| 20 | typedef u64 hubreg_t; |
| 21 | typedef u64 nic_t; |
| 22 | |
| 23 | #define cputonasid(cpu) (cpu_data[(cpu)].p_nasid) |
| 24 | #define cputoslice(cpu) (cpu_data[(cpu)].p_slice) |
| 25 | #define makespnum(_nasid, _slice) \ |
| 26 | (((_nasid) << CPUS_PER_NODE_SHFT) | (_slice)) |
| 27 | |
| 28 | #define INVALID_NASID (nasid_t)-1 |
| 29 | #define INVALID_CNODEID (cnodeid_t)-1 |
| 30 | #define INVALID_PNODEID (pnodeid_t)-1 |
| 31 | #define INVALID_MODULE (moduleid_t)-1 |
| 32 | #define INVALID_PARTID (partid_t)-1 |
| 33 | |
| 34 | extern nasid_t get_nasid(void); |
| 35 | extern cnodeid_t get_cpu_cnode(cpuid_t); |
| 36 | extern int get_cpu_slice(cpuid_t); |
| 37 | |
| 38 | /* |
| 39 | * NO ONE should access these arrays directly. The only reason we refer to |
| 40 | * them here is to avoid the procedure call that would be required in the |
| 41 | * macros below. (Really want private data members here :-) |
| 42 | */ |
| 43 | extern cnodeid_t nasid_to_compact_node[MAX_NASIDS]; |
| 44 | extern nasid_t compact_to_nasid_node[MAX_COMPACT_NODES]; |
| 45 | |
| 46 | /* |
| 47 | * These macros are used by various parts of the kernel to convert |
| 48 | * between the three different kinds of node numbering. At least some |
| 49 | * of them may change to procedure calls in the future, but the macros |
| 50 | * will continue to work. Don't use the arrays above directly. |
| 51 | */ |
| 52 | |
| 53 | #define NASID_TO_REGION(nnode) \ |
| 54 | ((nnode) >> \ |
| 55 | (is_fine_dirmode() ? NASID_TO_FINEREG_SHFT : NASID_TO_COARSEREG_SHFT)) |
| 56 | |
| 57 | extern cnodeid_t nasid_to_compact_node[MAX_NASIDS]; |
| 58 | extern nasid_t compact_to_nasid_node[MAX_COMPACT_NODES]; |
| 59 | extern cnodeid_t cpuid_to_compact_node[MAXCPUS]; |
| 60 | |
| 61 | #define NASID_TO_COMPACT_NODEID(nnode) (nasid_to_compact_node[nnode]) |
| 62 | #define COMPACT_TO_NASID_NODEID(cnode) (compact_to_nasid_node[cnode]) |
| 63 | #define CPUID_TO_COMPACT_NODEID(cpu) (cpuid_to_compact_node[(cpu)]) |
| 64 | |
| 65 | #endif /* _ASM_SN_ARCH_H */ |