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/types.h>
6 #include <asm/mmzone.h>
7 
8 struct cpuinfo_ip27 {
9 	nasid_t		p_nasid;	/* my node ID in numa-as-id-space */
10 	unsigned char	p_slice;	/* Physical position on node board */
11 };
12 
13 extern struct cpuinfo_ip27 sn_cpu_info[NR_CPUS];
14 
15 #define cpu_to_node(cpu)	(cputonasid(cpu))
16 #define cpumask_of_node(node)	((node) == -1 ?				\
17 				 cpu_all_mask :				\
18 				 &hub_data(node)->h_cpus)
19 struct pci_bus;
20 extern int pcibus_to_node(struct pci_bus *);
21 
22 #define cpumask_of_pcibus(bus)	(cpumask_of_node(pcibus_to_node(bus)))
23 
24 extern unsigned char __node_distances[MAX_NUMNODES][MAX_NUMNODES];
25 
26 #define node_distance(from, to) (__node_distances[(from)][(to)])
27 
28 #include <asm-generic/topology.h>
29 
30 #endif /* _ASM_MACH_TOPOLOGY_H */
31