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134 lines
2.8 KiB
134 lines
2.8 KiB
/* |
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* Copyright (C) 1999, 2000 Ralf Baechle (ralf@gnu.org) |
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* Copyright (C) 1999, 2000 Silicon Graphics, Inc. |
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*/ |
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#include <linux/kernel.h> |
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#include <linux/sched.h> |
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#include <linux/interrupt.h> |
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#include <linux/kernel_stat.h> |
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#include <linux/param.h> |
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#include <linux/timex.h> |
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#include <linux/mm.h> |
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#include <asm/sn/klconfig.h> |
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#include <asm/sn/arch.h> |
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#include <asm/sn/gda.h> |
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klinfo_t *find_component(lboard_t *brd, klinfo_t *kli, unsigned char struct_type) |
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{ |
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int index, j; |
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if (kli == (klinfo_t *)NULL) { |
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index = 0; |
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} else { |
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for (j = 0; j < KLCF_NUM_COMPS(brd); j++) |
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if (kli == KLCF_COMP(brd, j)) |
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break; |
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index = j; |
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if (index == KLCF_NUM_COMPS(brd)) { |
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printk("find_component: Bad pointer: 0x%p\n", kli); |
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return (klinfo_t *)NULL; |
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} |
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index++; /* next component */ |
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} |
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for (; index < KLCF_NUM_COMPS(brd); index++) { |
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kli = KLCF_COMP(brd, index); |
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if (KLCF_COMP_TYPE(kli) == struct_type) |
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return kli; |
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} |
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/* Didn't find it. */ |
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return (klinfo_t *)NULL; |
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} |
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klinfo_t *find_first_component(lboard_t *brd, unsigned char struct_type) |
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{ |
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return find_component(brd, (klinfo_t *)NULL, struct_type); |
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} |
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lboard_t *find_lboard(lboard_t *start, unsigned char brd_type) |
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{ |
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/* Search all boards stored on this node. */ |
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while (start) { |
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if (start->brd_type == brd_type) |
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return start; |
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start = KLCF_NEXT(start); |
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} |
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/* Didn't find it. */ |
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return (lboard_t *)NULL; |
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} |
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lboard_t *find_lboard_class(lboard_t *start, unsigned char brd_type) |
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{ |
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/* Search all boards stored on this node. */ |
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while (start) { |
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if (KLCLASS(start->brd_type) == KLCLASS(brd_type)) |
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return start; |
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start = KLCF_NEXT(start); |
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} |
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/* Didn't find it. */ |
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return (lboard_t *)NULL; |
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} |
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cnodeid_t get_cpu_cnode(cpuid_t cpu) |
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{ |
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return CPUID_TO_COMPACT_NODEID(cpu); |
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} |
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klcpu_t *nasid_slice_to_cpuinfo(nasid_t nasid, int slice) |
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{ |
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lboard_t *brd; |
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klcpu_t *acpu; |
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if (!(brd = find_lboard((lboard_t *)KL_CONFIG_INFO(nasid), KLTYPE_IP27))) |
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return (klcpu_t *)NULL; |
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if (!(acpu = (klcpu_t *)find_first_component(brd, KLSTRUCT_CPU))) |
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return (klcpu_t *)NULL; |
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do { |
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if ((acpu->cpu_info.physid) == slice) |
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return acpu; |
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} while ((acpu = (klcpu_t *)find_component(brd, (klinfo_t *)acpu, |
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KLSTRUCT_CPU))); |
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return (klcpu_t *)NULL; |
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} |
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klcpu_t *sn_get_cpuinfo(cpuid_t cpu) |
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{ |
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nasid_t nasid; |
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int slice; |
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klcpu_t *acpu; |
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gda_t *gdap = GDA; |
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cnodeid_t cnode; |
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if (!(cpu < MAXCPUS)) { |
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printk("sn_get_cpuinfo: illegal cpuid 0x%lx\n", cpu); |
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return NULL; |
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} |
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cnode = get_cpu_cnode(cpu); |
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if (cnode == INVALID_CNODEID) |
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return NULL; |
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if ((nasid = gdap->g_nasidtable[cnode]) == INVALID_NASID) |
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return NULL; |
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for (slice = 0; slice < CPUS_PER_NODE; slice++) { |
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acpu = nasid_slice_to_cpuinfo(nasid, slice); |
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if (acpu && acpu->cpu_info.virtid == cpu) |
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return acpu; |
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} |
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return NULL; |
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} |
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int get_cpu_slice(cpuid_t cpu) |
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{ |
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klcpu_t *acpu; |
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if ((acpu = sn_get_cpuinfo(cpu)) == NULL) |
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return -1; |
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return acpu->cpu_info.physid; |
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}
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