1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_MACH_TOPOLOGY_H
3 #define _ASM_MACH_TOPOLOGY_H	1
4 
5 #include <asm/sn/hub.h>
6 #include <asm/sn/types.h>
7 #include <asm/mmzone.h>
8 
9 struct cpuinfo_ip27 {
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 };
14 
15 extern struct cpuinfo_ip27 sn_cpu_info[NR_CPUS];
16 
17 #define cpu_to_node(cpu)	(sn_cpu_info[(cpu)].p_nodeid)
18 #define cpumask_of_node(node)	((node) == -1 ?				\
19 				 cpu_all_mask :				\
20 				 &hub_data(node)->h_cpus)
21 struct pci_bus;
22 extern int pcibus_to_node(struct pci_bus *);
23 
24 #define cpumask_of_pcibus(bus)	(cpumask_of_node(pcibus_to_node(bus)))
25 
26 extern unsigned char __node_distances[MAX_COMPACT_NODES][MAX_COMPACT_NODES];
27 
28 #define node_distance(from, to) (__node_distances[(from)][(to)])
29 
30 #include <asm-generic/topology.h>
31 
32 #endif /* _ASM_MACH_TOPOLOGY_H */
33