mach_apic.h 3.8 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156
  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 cpumask_t target_cpus(void)
  8. {
  9. #ifdef CONFIG_SMP
  10. return cpu_online_map;
  11. #else
  12. return cpumask_of_cpu(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 phys_pkg_id (genapic->phys_pkg_id)
  26. #define vector_allocation_domain (genapic->vector_allocation_domain)
  27. #define read_apic_id() (GET_APIC_ID(apic_read(APIC_ID)))
  28. #define send_IPI_self (genapic->send_IPI_self)
  29. extern void setup_apic_routing(void);
  30. #else
  31. #define INT_DELIVERY_MODE dest_LowestPrio
  32. #define INT_DEST_MODE 1 /* logical delivery broadcast to all procs */
  33. #define TARGET_CPUS (target_cpus())
  34. /*
  35. * Set up the logical destination ID.
  36. *
  37. * Intel recommends to set DFR, LDR and TPR before enabling
  38. * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
  39. * document number 292116). So here it goes...
  40. */
  41. static inline void init_apic_ldr(void)
  42. {
  43. unsigned long val;
  44. apic_write(APIC_DFR, APIC_DFR_VALUE);
  45. val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
  46. val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
  47. apic_write(APIC_LDR, val);
  48. }
  49. static inline int apic_id_registered(void)
  50. {
  51. return physid_isset(read_apic_id(), phys_cpu_present_map);
  52. }
  53. static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
  54. {
  55. return cpus_addr(cpumask)[0];
  56. }
  57. static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
  58. {
  59. return cpuid_apic >> index_msb;
  60. }
  61. static inline void setup_apic_routing(void)
  62. {
  63. #ifdef CONFIG_X86_IO_APIC
  64. printk("Enabling APIC mode: %s. Using %d I/O APICs\n",
  65. "Flat", nr_ioapics);
  66. #endif
  67. }
  68. static inline int apicid_to_node(int logical_apicid)
  69. {
  70. #ifdef CONFIG_SMP
  71. return apicid_2_node[hard_smp_processor_id()];
  72. #else
  73. return 0;
  74. #endif
  75. }
  76. static inline cpumask_t vector_allocation_domain(int cpu)
  77. {
  78. /* Careful. Some cpus do not strictly honor the set of cpus
  79. * specified in the interrupt destination when using lowest
  80. * priority interrupt delivery mode.
  81. *
  82. * In particular there was a hyperthreading cpu observed to
  83. * deliver interrupts to the wrong hyperthread when only one
  84. * hyperthread was specified in the interrupt desitination.
  85. */
  86. cpumask_t domain = { { [0] = APIC_ALL_CPUS, } };
  87. return domain;
  88. }
  89. #endif
  90. static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
  91. {
  92. return physid_isset(apicid, bitmap);
  93. }
  94. static inline unsigned long check_apicid_present(int bit)
  95. {
  96. return physid_isset(bit, phys_cpu_present_map);
  97. }
  98. static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
  99. {
  100. return phys_map;
  101. }
  102. static inline int multi_timer_check(int apic, int irq)
  103. {
  104. return 0;
  105. }
  106. /* Mapping from cpu number to logical apicid */
  107. static inline int cpu_to_logical_apicid(int cpu)
  108. {
  109. return 1 << cpu;
  110. }
  111. static inline int cpu_present_to_apicid(int mps_cpu)
  112. {
  113. if (mps_cpu < NR_CPUS && cpu_present(mps_cpu))
  114. return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
  115. else
  116. return BAD_APICID;
  117. }
  118. static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
  119. {
  120. return physid_mask_of_physid(phys_apicid);
  121. }
  122. static inline void setup_portio_remap(void)
  123. {
  124. }
  125. static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
  126. {
  127. return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
  128. }
  129. static inline void enable_apic_mode(void)
  130. {
  131. }
  132. #endif /* CONFIG_X86_LOCAL_APIC */
  133. #endif /* _ASM_X86_MACH_DEFAULT_MACH_APIC_H */