LXR linux/arch/x86/kernel/apic/apic

   1/*
   2 * Common functions shared between the various APIC flavours
   3 *
   4 * SPDX-License-Identifier: GPL-2.0
   5 */
   6#include <linux/irq.h>
   7#include <asm/apic.h>
   8
   9u32 apic_default_calc_apicid(unsigned int cpu)
  10{
  11        return per_cpu(x86_cpu_to_apicid, cpu);
  12}
  13
  14u32 apic_flat_calc_apicid(unsigned int cpu)
  15{
  16        return 1U << cpu;
  17}
  18
  19bool default_check_apicid_used(physid_mask_t *map, int apicid)
  20{
  21        return physid_isset(apicid, *map);
  22}
  23
  24void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
  25{
  26        *retmap = *phys_map;
  27}
  28
  29int default_cpu_present_to_apicid(int mps_cpu)
  30{
  31        if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))
  32                return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
  33        else
  34                return BAD_APICID;
  35}
  36EXPORT_SYMBOL_GPL(default_cpu_present_to_apicid);
  37
  38int default_check_phys_apicid_present(int phys_apicid)
  39{
  40        return physid_isset(phys_apicid, phys_cpu_present_map);
  41}
  42
  43int default_apic_id_valid(u32 apicid)
  44{
  45        return (apicid < 255);
  46}
  47