mach_apic.h 4.4 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 *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 INT_DELIVERY_MODE (genapic->int_delivery_mode)
  20. #define INT_DEST_MODE (genapic->int_dest_mode)
  21. #define TARGET_CPUS (genapic->target_cpus())
  22. #define apic_id_registered (genapic->apic_id_registered)
  23. #define init_apic_ldr (genapic->init_apic_ldr)
  24. #define cpu_mask_to_apicid (genapic->cpu_mask_to_apicid)
  25. #define cpu_mask_to_apicid_and (genapic->cpu_mask_to_apicid_and)
  26. #define phys_pkg_id (genapic->phys_pkg_id)
  27. #define vector_allocation_domain (genapic->vector_allocation_domain)
  28. #define read_apic_id() (GET_APIC_ID(apic_read(APIC_ID)))
  29. #define send_IPI_self (genapic->send_IPI_self)
  30. #define wakeup_secondary_cpu (genapic->wakeup_cpu)
  31. extern void setup_apic_routing(void);
  32. #else
  33. #define INT_DELIVERY_MODE dest_LowestPrio
  34. #define INT_DEST_MODE 1 /* logical delivery broadcast to all procs */
  35. #define TARGET_CPUS (target_cpus())
  36. #define wakeup_secondary_cpu wakeup_secondary_cpu_via_init
  37. /*
  38. * Set up the logical destination ID.
  39. *
  40. * Intel recommends to set DFR, LDR and TPR before enabling
  41. * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
  42. * document number 292116). So here it goes...
  43. */
  44. static inline void init_apic_ldr(void)
  45. {
  46. unsigned long val;
  47. apic_write(APIC_DFR, APIC_DFR_VALUE);
  48. val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
  49. val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
  50. apic_write(APIC_LDR, val);
  51. }
  52. static inline int apic_id_registered(void)
  53. {
  54. return physid_isset(read_apic_id(), phys_cpu_present_map);
  55. }
  56. static inline unsigned int cpu_mask_to_apicid(const struct cpumask *cpumask)
  57. {
  58. return cpumask_bits(cpumask)[0];
  59. }
  60. static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
  61. const struct cpumask *andmask)
  62. {
  63. unsigned long mask1 = cpumask_bits(cpumask)[0];
  64. unsigned long mask2 = cpumask_bits(andmask)[0];
  65. unsigned long mask3 = cpumask_bits(cpu_online_mask)[0];
  66. return (unsigned int)(mask1 & mask2 & mask3);
  67. }
  68. static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
  69. {
  70. return cpuid_apic >> index_msb;
  71. }
  72. static inline void setup_apic_routing(void)
  73. {
  74. #ifdef CONFIG_X86_IO_APIC
  75. printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
  76. "Flat", nr_ioapics);
  77. #endif
  78. }
  79. static inline int apicid_to_node(int logical_apicid)
  80. {
  81. #ifdef CONFIG_SMP
  82. return apicid_2_node[hard_smp_processor_id()];
  83. #else
  84. return 0;
  85. #endif
  86. }
  87. static inline void vector_allocation_domain(int cpu, struct cpumask *retmask)
  88. {
  89. /* Careful. Some cpus do not strictly honor the set of cpus
  90. * specified in the interrupt destination when using lowest
  91. * priority interrupt delivery mode.
  92. *
  93. * In particular there was a hyperthreading cpu observed to
  94. * deliver interrupts to the wrong hyperthread when only one
  95. * hyperthread was specified in the interrupt desitination.
  96. */
  97. *retmask = (cpumask_t) { { [0] = APIC_ALL_CPUS } };
  98. }
  99. #endif
  100. static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
  101. {
  102. return physid_isset(apicid, bitmap);
  103. }
  104. static inline unsigned long check_apicid_present(int bit)
  105. {
  106. return physid_isset(bit, phys_cpu_present_map);
  107. }
  108. static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
  109. {
  110. return phys_map;
  111. }
  112. static inline int multi_timer_check(int apic, int irq)
  113. {
  114. return 0;
  115. }
  116. /* Mapping from cpu number to logical apicid */
  117. static inline int cpu_to_logical_apicid(int cpu)
  118. {
  119. return 1 << cpu;
  120. }
  121. static inline int cpu_present_to_apicid(int mps_cpu)
  122. {
  123. if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))
  124. return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
  125. else
  126. return BAD_APICID;
  127. }
  128. static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
  129. {
  130. return physid_mask_of_physid(phys_apicid);
  131. }
  132. static inline void setup_portio_remap(void)
  133. {
  134. }
  135. static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
  136. {
  137. return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
  138. }
  139. static inline void enable_apic_mode(void)
  140. {
  141. }
  142. #endif /* CONFIG_X86_LOCAL_APIC */
  143. #endif /* _ASM_X86_MACH_DEFAULT_MACH_APIC_H */