x2apic.h 1.0 KB

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  1. /*
  2. * Common bits for X2APIC cluster/physical modes.
  3. */
  4. #ifndef _ASM_X86_X2APIC_H
  5. #define _ASM_X86_X2APIC_H
  6. #include <asm/apic.h>
  7. #include <asm/ipi.h>
  8. #include <linux/cpumask.h>
  9. /*
  10. * Need to use more than cpu 0, because we need more vectors
  11. * when MSI-X are used.
  12. */
  13. static const struct cpumask *x2apic_target_cpus(void)
  14. {
  15. return cpu_online_mask;
  16. }
  17. static int x2apic_apic_id_valid(int apicid)
  18. {
  19. return 1;
  20. }
  21. static int x2apic_apic_id_registered(void)
  22. {
  23. return 1;
  24. }
  25. static void
  26. __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest)
  27. {
  28. unsigned long cfg = __prepare_ICR(0, vector, dest);
  29. native_x2apic_icr_write(cfg, apicid);
  30. }
  31. static unsigned int x2apic_get_apic_id(unsigned long id)
  32. {
  33. return id;
  34. }
  35. static unsigned long x2apic_set_apic_id(unsigned int id)
  36. {
  37. return id;
  38. }
  39. static int x2apic_phys_pkg_id(int initial_apicid, int index_msb)
  40. {
  41. return initial_apicid >> index_msb;
  42. }
  43. static void x2apic_send_IPI_self(int vector)
  44. {
  45. apic_write(APIC_SELF_IPI, vector);
  46. }
  47. #endif /* _ASM_X86_X2APIC_H */