|  | #ifndef _ASM_MACH_TOPOLOGY_H | 
|  | #define _ASM_MACH_TOPOLOGY_H	1 | 
|  |  | 
|  | #include <asm/sn/hub.h> | 
|  | #include <asm/mmzone.h> | 
|  |  | 
|  | #define cpu_to_node(cpu)	(cpu_data[(cpu)].p_nodeid) | 
|  | #define parent_node(node)	(node) | 
|  | #define node_to_cpumask(node)	(hub_data(node)->h_cpus) | 
|  | #define node_to_first_cpu(node)	(first_cpu(node_to_cpumask(node))) | 
|  | struct pci_bus; | 
|  | extern int pcibus_to_node(struct pci_bus *); | 
|  |  | 
|  | #define pcibus_to_cpumask(bus)	(cpu_online_map) | 
|  |  | 
|  | extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES]; | 
|  |  | 
|  | #define node_distance(from, to)	(__node_distances[(from)][(to)]) | 
|  |  | 
|  | /* sched_domains SD_NODE_INIT for SGI IP27 machines */ | 
|  | #define SD_NODE_INIT (struct sched_domain) {		\ | 
|  | .span			= CPU_MASK_NONE,	\ | 
|  | .parent			= NULL,			\ | 
|  | .child			= NULL,			\ | 
|  | .groups			= NULL,			\ | 
|  | .min_interval		= 8,			\ | 
|  | .max_interval		= 32,			\ | 
|  | .busy_factor		= 32,			\ | 
|  | .imbalance_pct		= 125,			\ | 
|  | .cache_nice_tries	= 1,			\ | 
|  | .flags			= SD_LOAD_BALANCE	\ | 
|  | | SD_BALANCE_EXEC	\ | 
|  | | SD_WAKE_BALANCE,	\ | 
|  | .last_balance		= jiffies,		\ | 
|  | .balance_interval	= 1,			\ | 
|  | .nr_balance_failed	= 0,			\ | 
|  | } | 
|  |  | 
|  | #endif /* _ASM_MACH_TOPOLOGY_H */ |