2 * Copyright (C) 1999, 2000 Ralf Baechle (ralf@gnu.org)
3 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
5 #include <linux/kernel.h>
6 #include <linux/sched.h>
7 #include <linux/interrupt.h>
8 #include <linux/kernel_stat.h>
9 #include <linux/param.h>
10 #include <linux/timex.h>
13 #include <asm/sn/klconfig.h>
14 #include <asm/sn/arch.h>
15 #include <asm/sn/gda.h>
17 klinfo_t *find_component(lboard_t *brd, klinfo_t *kli, unsigned char struct_type)
21 if (kli == (klinfo_t *)NULL) {
24 for (j = 0; j < KLCF_NUM_COMPS(brd); j++)
25 if (kli == KLCF_COMP(brd, j))
28 if (index == KLCF_NUM_COMPS(brd)) {
29 printk("find_component: Bad pointer: 0x%p\n", kli);
30 return (klinfo_t *)NULL;
32 index++; /* next component */
35 for (; index < KLCF_NUM_COMPS(brd); index++) {
36 kli = KLCF_COMP(brd, index);
37 if (KLCF_COMP_TYPE(kli) == struct_type)
42 return (klinfo_t *)NULL;
45 klinfo_t *find_first_component(lboard_t *brd, unsigned char struct_type)
47 return find_component(brd, (klinfo_t *)NULL, struct_type);
50 lboard_t *find_lboard(lboard_t *start, unsigned char brd_type)
52 /* Search all boards stored on this node. */
54 if (start->brd_type == brd_type)
56 start = KLCF_NEXT(start);
59 return (lboard_t *)NULL;
62 lboard_t *find_lboard_class(lboard_t *start, unsigned char brd_type)
64 /* Search all boards stored on this node. */
66 if (KLCLASS(start->brd_type) == KLCLASS(brd_type))
68 start = KLCF_NEXT(start);
72 return (lboard_t *)NULL;
75 cnodeid_t get_cpu_cnode(cpuid_t cpu)
77 return CPUID_TO_COMPACT_NODEID(cpu);
80 klcpu_t *nasid_slice_to_cpuinfo(nasid_t nasid, int slice)
85 if (!(brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27)))
86 return (klcpu_t *)NULL;
88 if (!(acpu = (klcpu_t *)find_first_component(brd, KLSTRUCT_CPU)))
89 return (klcpu_t *)NULL;
92 if ((acpu->cpu_info.physid) == slice)
94 } while ((acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu,
96 return (klcpu_t *)NULL;
99 klcpu_t *sn_get_cpuinfo(cpuid_t cpu)
107 if (!(cpu < MAXCPUS)) {
108 printk("sn_get_cpuinfo: illegal cpuid 0x%lx\n", cpu);
112 cnode = get_cpu_cnode(cpu);
113 if (cnode == INVALID_CNODEID)
116 if ((nasid = gdap->g_nasidtable[cnode]) == INVALID_NASID)
119 for (slice = 0; slice < CPUS_PER_NODE; slice++) {
120 acpu = nasid_slice_to_cpuinfo(nasid, slice);
121 if (acpu && acpu->cpu_info.virtid == cpu)
127 int get_cpu_slice(cpuid_t cpu)
131 if ((acpu = sn_get_cpuinfo(cpu)) == NULL)
133 return acpu->cpu_info.physid;