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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 | /* * 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 specific setup. * * Copyright (C) 1995 - 1997, 1999 Silcon Graphics, Inc. * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org) */ #ifndef _ASM_SN_ARCH_H #define _ASM_SN_ARCH_H #include <linux/types.h> #include <linux/config.h> #if !defined(CONFIG_SGI_IO) #include <asm/sn/types.h> #include <asm/sn/sn0/arch.h> #endif #ifndef __ASSEMBLY__ #if !defined(CONFIG_SGI_IO) typedef u64 hubreg_t; typedef u64 nic_t; #endif #endif #ifdef CONFIG_SGI_IP27 #define CPUS_PER_NODE 2 /* CPUs on a single hub */ #define CPUS_PER_NODE_SHFT 1 /* Bits to shift in the node number */ #define CPUS_PER_SUBNODE 2 /* CPUs on a single hub PI */ #endif #define CNODE_NUM_CPUS(_cnode) (NODEPDA(_cnode)->node_num_cpus) #define CNODE_TO_CPU_BASE(_cnode) (NODEPDA(_cnode)->node_first_cpu) #define cputocnode(cpu) \ (cpu_data[(cpu)].p_nodeid) #define cputonasid(cpu) \ (cpu_data[(cpu)].p_nasid) #define cputoslice(cpu) \ (cpu_data[(cpu)].p_slice) #define makespnum(_nasid, _slice) \ (((_nasid) << CPUS_PER_NODE_SHFT) | (_slice)) #ifndef __ASSEMBLY__ #define INVALID_NASID (nasid_t)-1 #define INVALID_CNODEID (cnodeid_t)-1 #define INVALID_PNODEID (pnodeid_t)-1 #define INVALID_MODULE (moduleid_t)-1 #define INVALID_PARTID (partid_t)-1 extern nasid_t get_nasid(void); extern cnodeid_t get_cpu_cnode(cpuid_t); extern int get_cpu_slice(cpuid_t); /* * NO ONE should access these arrays directly. The only reason we refer to * them here is to avoid the procedure call that would be required in the * macros below. (Really want private data members here :-) */ extern cnodeid_t nasid_to_compact_node[MAX_NASIDS]; extern nasid_t compact_to_nasid_node[MAX_COMPACT_NODES]; /* * These macros are used by various parts of the kernel to convert * between the three different kinds of node numbering. At least some * of them may change to procedure calls in the future, but the macros * will continue to work. Don't use the arrays above directly. */ #define NASID_TO_REGION(nnode) \ ((nnode) >> \ (is_fine_dirmode() ? NASID_TO_FINEREG_SHFT : NASID_TO_COARSEREG_SHFT)) #if !defined(_STANDALONE) extern cnodeid_t nasid_to_compact_node[MAX_NASIDS]; extern nasid_t compact_to_nasid_node[MAX_COMPACT_NODES]; extern cnodeid_t cpuid_to_compact_node[MAXCPUS]; #endif #if !defined(DEBUG) && (!defined(SABLE) || defined(_STANDALONE)) #define NASID_TO_COMPACT_NODEID(nnode) (nasid_to_compact_node[nnode]) #define COMPACT_TO_NASID_NODEID(cnode) (compact_to_nasid_node[cnode]) #define CPUID_TO_COMPACT_NODEID(cpu) (cpuid_to_compact_node[(cpu)]) #else /* * These functions can do type checking and fail if they need to return * a bad nodeid, but they're not as fast so just use 'em for debug kernels. */ cnodeid_t nasid_to_compact_nodeid(nasid_t nasid); nasid_t compact_to_nasid_nodeid(cnodeid_t cnode); #define NASID_TO_COMPACT_NODEID(nnode) nasid_to_compact_nodeid(nnode) #define COMPACT_TO_NASID_NODEID(cnode) compact_to_nasid_nodeid(cnode) #define CPUID_TO_COMPACT_NODEID(cpu) (cpuid_to_compact_node[(cpu)]) #endif extern int node_getlastslot(cnodeid_t); #endif /* !__ASSEMBLY__ */ #define SLOT_BITMASK (MAX_MEM_SLOTS - 1) #define SLOT_SIZE (1LL<<SLOT_SHIFT) #define node_getnumslots(node) (MAX_MEM_SLOTS) #define NODE_MAX_MEM_SIZE SLOT_SIZE * MAX_MEM_SLOTS /* * New stuff in here from Irix sys/pfdat.h. */ #define SLOT_PFNSHIFT (SLOT_SHIFT - PAGE_SHIFT) #define PFN_NASIDSHFT (NASID_SHFT - PAGE_SHIFT) #define mkpfn(nasid, off) (((pfn_t)(nasid) << PFN_NASIDSHFT) | (off)) #define slot_getbasepfn(node,slot) \ (mkpfn(COMPACT_TO_NASID_NODEID(node), slot<<SLOT_PFNSHIFT)) #endif /* _ASM_SN_ARCH_H */ |