powerpc: Delete __cpuinit usage from all users
[linux/fpc-iii.git] / arch / ia64 / include / asm / sn / nodepda.h
blobee118b901de479e065ccc1cf361c1db141680f4c
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.
6 * Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
7 */
8 #ifndef _ASM_IA64_SN_NODEPDA_H
9 #define _ASM_IA64_SN_NODEPDA_H
12 #include <asm/irq.h>
13 #include <asm/sn/arch.h>
14 #include <asm/sn/intr.h>
15 #include <asm/sn/bte.h>
18 * NUMA Node-Specific Data structures are defined in this file.
19 * In particular, this is the location of the node PDA.
20 * A pointer to the right node PDA is saved in each CPU PDA.
24 * Node-specific data structure.
26 * One of these structures is allocated on each node of a NUMA system.
28 * This structure provides a convenient way of keeping together
29 * all per-node data structures.
31 struct phys_cpuid {
32 short nasid;
33 char subnode;
34 char slice;
37 struct nodepda_s {
38 void *pdinfo; /* Platform-dependent per-node info */
41 * The BTEs on this node are shared by the local cpus
43 struct bteinfo_s bte_if[MAX_BTES_PER_NODE]; /* Virtual Interface */
44 struct timer_list bte_recovery_timer;
45 spinlock_t bte_recovery_lock;
47 /*
48 * Array of pointers to the nodepdas for each node.
50 struct nodepda_s *pernode_pdaindr[MAX_COMPACT_NODES];
53 * Array of physical cpu identifiers. Indexed by cpuid.
55 struct phys_cpuid phys_cpuid[NR_CPUS];
56 spinlock_t ptc_lock ____cacheline_aligned_in_smp;
59 typedef struct nodepda_s nodepda_t;
62 * Access Functions for node PDA.
63 * Since there is one nodepda for each node, we need a convenient mechanism
64 * to access these nodepdas without cluttering code with #ifdefs.
65 * The next set of definitions provides this.
66 * Routines are expected to use
68 * sn_nodepda - to access node PDA for the node on which code is running
69 * NODEPDA(cnodeid) - to access node PDA for cnodeid
72 DECLARE_PER_CPU(struct nodepda_s *, __sn_nodepda);
73 #define sn_nodepda (__get_cpu_var(__sn_nodepda))
74 #define NODEPDA(cnodeid) (sn_nodepda->pernode_pdaindr[cnodeid])
77 * Check if given a compact node id the corresponding node has all the
78 * cpus disabled.
80 #define is_headless_node(cnodeid) (nr_cpus_node(cnodeid) == 0)
82 #endif /* _ASM_IA64_SN_NODEPDA_H */