1 #ifndef _ASM_MACH_TOPOLOGY_H
2 #define _ASM_MACH_TOPOLOGY_H	1
3 
4 #include <asm/sn/hub.h>
5 #include <asm/sn/types.h>
6 #include <asm/mmzone.h>
7 
8 struct cpuinfo_ip27 {
9 //	cpuid_t		p_cpuid;	/* PROM assigned cpuid */
10 	cnodeid_t	p_nodeid;	/* my node ID in compact-id-space */
11 	nasid_t		p_nasid;	/* my node ID in numa-as-id-space */
12 	unsigned char	p_slice;	/* Physical position on node board */
13 #if 0
14 	unsigned long		loops_per_sec;
15 	unsigned long		ipi_count;
16 	unsigned long		irq_attempt[NR_IRQS];
17 	unsigned long		smp_local_irq_count;
18 	unsigned long		prof_multiplier;
19 	unsigned long		prof_counter;
20 #endif
21 };
22 
23 extern struct cpuinfo_ip27 sn_cpu_info[NR_CPUS];
24 
25 #define cpu_to_node(cpu)	(sn_cpu_info[(cpu)].p_nodeid)
26 #define parent_node(node)	(node)
27 #define node_to_cpumask(node)	(hub_data(node)->h_cpus)
28 #define node_to_first_cpu(node)	(first_cpu(node_to_cpumask(node)))
29 struct pci_bus;
30 extern int pcibus_to_node(struct pci_bus *);
31 
32 #define pcibus_to_cpumask(bus)	(cpu_online_map)
33 
34 extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];
35 
36 #define node_distance(from, to)	(__node_distances[(from)][(to)])
37 
38 /* sched_domains SD_NODE_INIT for SGI IP27 machines */
39 #define SD_NODE_INIT (struct sched_domain) {		\
40 	.span			= CPU_MASK_NONE,	\
41 	.parent			= NULL,			\
42 	.child			= NULL,			\
43 	.groups			= NULL,			\
44 	.min_interval		= 8,			\
45 	.max_interval		= 32,			\
46 	.busy_factor		= 32,			\
47 	.imbalance_pct		= 125,			\
48 	.cache_nice_tries	= 1,			\
49 	.flags			= SD_LOAD_BALANCE	\
50 				| SD_BALANCE_EXEC	\
51 				| SD_WAKE_BALANCE,	\
52 	.last_balance		= jiffies,		\
53 	.balance_interval	= 1,			\
54 	.nr_balance_failed	= 0,			\
55 }
56 
57 #include <asm-generic/topology.h>
58 
59 #endif /* _ASM_MACH_TOPOLOGY_H */
60