1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun #ifndef _ASM_ALPHA_TOPOLOGY_H 3*4882a593Smuzhiyun #define _ASM_ALPHA_TOPOLOGY_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <linux/smp.h> 6*4882a593Smuzhiyun #include <linux/threads.h> 7*4882a593Smuzhiyun #include <linux/numa.h> 8*4882a593Smuzhiyun #include <asm/machvec.h> 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #ifdef CONFIG_NUMA cpu_to_node(int cpu)11*4882a593Smuzhiyunstatic inline int cpu_to_node(int cpu) 12*4882a593Smuzhiyun { 13*4882a593Smuzhiyun int node; 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun if (!alpha_mv.cpuid_to_nid) 16*4882a593Smuzhiyun return 0; 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun node = alpha_mv.cpuid_to_nid(cpu); 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun #ifdef DEBUG_NUMA 21*4882a593Smuzhiyun BUG_ON(node < 0); 22*4882a593Smuzhiyun #endif 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun return node; 25*4882a593Smuzhiyun } 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun extern struct cpumask node_to_cpumask_map[]; 28*4882a593Smuzhiyun /* FIXME: This is dumb, recalculating every time. But simple. */ cpumask_of_node(int node)29*4882a593Smuzhiyunstatic const struct cpumask *cpumask_of_node(int node) 30*4882a593Smuzhiyun { 31*4882a593Smuzhiyun int cpu; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun if (node == NUMA_NO_NODE) 34*4882a593Smuzhiyun return cpu_all_mask; 35*4882a593Smuzhiyun 36*4882a593Smuzhiyun cpumask_clear(&node_to_cpumask_map[node]); 37*4882a593Smuzhiyun 38*4882a593Smuzhiyun for_each_online_cpu(cpu) { 39*4882a593Smuzhiyun if (cpu_to_node(cpu) == node) 40*4882a593Smuzhiyun cpumask_set_cpu(cpu, node_to_cpumask_map[node]); 41*4882a593Smuzhiyun } 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun return &node_to_cpumask_map[node]; 44*4882a593Smuzhiyun } 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun #define cpumask_of_pcibus(bus) (cpu_online_mask) 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun #endif /* !CONFIG_NUMA */ 49*4882a593Smuzhiyun # include <asm-generic/topology.h> 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun #endif /* _ASM_ALPHA_TOPOLOGY_H */ 52