mach_apic.h 4.0 KB

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  1. #ifndef _ASM_X86_MACH_DEFAULT_MACH_APIC_H
  2. #define _ASM_X86_MACH_DEFAULT_MACH_APIC_H
  3. #ifdef CONFIG_X86_LOCAL_APIC
  4. #include <mach_apicdef.h>
  5. #include <asm/smp.h>
  6. #define APIC_DFR_VALUE (APIC_DFR_FLAT)
  7. static inline const struct cpumask *default_target_cpus(void)
  8. {
  9. #ifdef CONFIG_SMP
  10. return cpu_online_mask;
  11. #else
  12. return cpumask_of(0);
  13. #endif
  14. }
  15. #define NO_BALANCE_IRQ (0)
  16. #define esr_disable (0)
  17. #ifdef CONFIG_X86_64
  18. #include <asm/genapic.h>
  19. #define init_apic_ldr (apic->init_apic_ldr)
  20. #define cpu_mask_to_apicid (apic->cpu_mask_to_apicid)
  21. #define cpu_mask_to_apicid_and (apic->cpu_mask_to_apicid_and)
  22. #define phys_pkg_id (apic->phys_pkg_id)
  23. #define vector_allocation_domain (apic->vector_allocation_domain)
  24. #define read_apic_id() (GET_APIC_ID(apic_read(APIC_ID)))
  25. #define send_IPI_self (apic->send_IPI_self)
  26. #define wakeup_secondary_cpu (apic->wakeup_cpu)
  27. extern void setup_apic_routing(void);
  28. #else
  29. #define wakeup_secondary_cpu wakeup_secondary_cpu_via_init
  30. /*
  31. * Set up the logical destination ID.
  32. *
  33. * Intel recommends to set DFR, LDR and TPR before enabling
  34. * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
  35. * document number 292116). So here it goes...
  36. */
  37. static inline void init_apic_ldr(void)
  38. {
  39. unsigned long val;
  40. apic_write(APIC_DFR, APIC_DFR_VALUE);
  41. val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
  42. val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
  43. apic_write(APIC_LDR, val);
  44. }
  45. static inline int default_apic_id_registered(void)
  46. {
  47. return physid_isset(read_apic_id(), phys_cpu_present_map);
  48. }
  49. static inline unsigned int cpu_mask_to_apicid(const struct cpumask *cpumask)
  50. {
  51. return cpumask_bits(cpumask)[0];
  52. }
  53. static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
  54. const struct cpumask *andmask)
  55. {
  56. unsigned long mask1 = cpumask_bits(cpumask)[0];
  57. unsigned long mask2 = cpumask_bits(andmask)[0];
  58. unsigned long mask3 = cpumask_bits(cpu_online_mask)[0];
  59. return (unsigned int)(mask1 & mask2 & mask3);
  60. }
  61. static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
  62. {
  63. return cpuid_apic >> index_msb;
  64. }
  65. static inline void setup_apic_routing(void)
  66. {
  67. #ifdef CONFIG_X86_IO_APIC
  68. printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
  69. "Flat", nr_ioapics);
  70. #endif
  71. }
  72. static inline int apicid_to_node(int logical_apicid)
  73. {
  74. #ifdef CONFIG_SMP
  75. return apicid_2_node[hard_smp_processor_id()];
  76. #else
  77. return 0;
  78. #endif
  79. }
  80. static inline void vector_allocation_domain(int cpu, struct cpumask *retmask)
  81. {
  82. /* Careful. Some cpus do not strictly honor the set of cpus
  83. * specified in the interrupt destination when using lowest
  84. * priority interrupt delivery mode.
  85. *
  86. * In particular there was a hyperthreading cpu observed to
  87. * deliver interrupts to the wrong hyperthread when only one
  88. * hyperthread was specified in the interrupt desitination.
  89. */
  90. *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
  91. }
  92. #endif
  93. static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
  94. {
  95. return physid_isset(apicid, bitmap);
  96. }
  97. static inline unsigned long check_apicid_present(int bit)
  98. {
  99. return physid_isset(bit, phys_cpu_present_map);
  100. }
  101. static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
  102. {
  103. return phys_map;
  104. }
  105. static inline int multi_timer_check(int apic, int irq)
  106. {
  107. return 0;
  108. }
  109. /* Mapping from cpu number to logical apicid */
  110. static inline int cpu_to_logical_apicid(int cpu)
  111. {
  112. return 1 << cpu;
  113. }
  114. static inline int cpu_present_to_apicid(int mps_cpu)
  115. {
  116. if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))
  117. return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
  118. else
  119. return BAD_APICID;
  120. }
  121. static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
  122. {
  123. return physid_mask_of_physid(phys_apicid);
  124. }
  125. static inline void setup_portio_remap(void)
  126. {
  127. }
  128. static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
  129. {
  130. return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
  131. }
  132. static inline void enable_apic_mode(void)
  133. {
  134. }
  135. #endif /* CONFIG_X86_LOCAL_APIC */
  136. #endif /* _ASM_X86_MACH_DEFAULT_MACH_APIC_H */