91 lines
1.8 KiB
C
91 lines
1.8 KiB
C
#include "lscpu.h"
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struct lscpu_cpu *lscpu_new_cpu(int id)
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{
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struct lscpu_cpu *cpu;
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cpu = xcalloc(1, sizeof(struct lscpu_cpu));
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cpu->refcount = 1;
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cpu->logical_id = id;
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cpu->coreid = -1;
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cpu->socketid = -1;
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cpu->bookid = -1;
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cpu->bookid = -1;
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cpu->address = -1;
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cpu->configured = -1;
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DBG(CPU, ul_debugobj(cpu, "alloc"));
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return cpu;
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}
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void lscpu_ref_cpu(struct lscpu_cpu *cpu)
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{
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if (cpu)
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cpu->refcount++;
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}
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void lscpu_unref_cpu(struct lscpu_cpu *cpu)
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{
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if (!cpu)
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return;
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if (--cpu->refcount <= 0) {
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DBG(CPU, ul_debugobj(cpu, " freeing #%d", cpu->logical_id));
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lscpu_unref_cputype(cpu->type);
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cpu->type = NULL;
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free(cpu->dynamic_mhz);
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free(cpu->static_mhz);
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free(cpu->mhz);
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free(cpu->bogomips);
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free(cpu);
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}
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}
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/*
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* Create and initialize array with CPU structs according to @cpuset.
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*/
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int lscpu_create_cpus(struct lscpu_cxt *cxt, cpu_set_t *cpuset, size_t setsize)
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{
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size_t n, i;
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assert(!cxt->cpus);
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cxt->npossibles = CPU_COUNT_S(setsize, cpuset);
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cxt->cpus = xcalloc(1, cxt->npossibles * sizeof(struct lscpu_cpu *));
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for (n = 0, i = 0; n < (size_t) cxt->maxcpus && i < cxt->npossibles; n++) {
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if (CPU_ISSET_S(n, setsize, cpuset))
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cxt->cpus[i++] = lscpu_new_cpu(n);
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}
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return 0;
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}
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int lscpu_cpu_set_type(struct lscpu_cpu *cpu, struct lscpu_cputype *type)
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{
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if (cpu->type == type)
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return 0;
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lscpu_unref_cputype(cpu->type);
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cpu->type = type;
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lscpu_ref_cputype(type);
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DBG(CPU, ul_debugobj(cpu, "cputype set to %s", type ? type->vendor : NULL));
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return 0;
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}
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/* don't forget lscpu_ref_cpu() ! */
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struct lscpu_cpu *lscpu_get_cpu(struct lscpu_cxt *cxt, int logical_id)
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{
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size_t i;
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for (i = 0; i < cxt->npossibles; i++) {
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struct lscpu_cpu *cpu = cxt->cpus[i];
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if (cpu && cpu->logical_id == logical_id)
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return cpu;
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}
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return NULL;
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}
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