arch/x86/include/asm/mach-default/mach_apic.h

   1 #ifndef _ASM_X86_MACH_DEFAULT_MACH_APIC_H
   2 #define _ASM_X86_MACH_DEFAULT_MACH_APIC_H
   3
   4 #ifdef CONFIG_X86_LOCAL_APIC
   5
   6 #include <asm/smp.h>
   7
   8 #define APIC_DFR_VALUE  (APIC_DFR_FLAT)
   9
  10 static inline const struct cpumask *default_target_cpus(void)
  11 {
  12 #ifdef CONFIG_SMP
  13         return cpu_online_mask;
  14 #else
  15         return cpumask_of(0);
  16 #endif
  17 }
  18
  19 #ifdef CONFIG_X86_64
  20 #include <asm/genapic.h>
  21 #define read_apic_id()  (apic->get_apic_id(apic_read(APIC_ID)))
  22 #define wakeup_secondary_cpu (apic->wakeup_cpu)
  23 extern void default_setup_apic_routing(void);
  24 #else
  25 #define wakeup_secondary_cpu wakeup_secondary_cpu_via_init
  26 /*
  27  * Set up the logical destination ID.
  28  *
  29  * Intel recommends to set DFR, LDR and TPR before enabling
  30  * an APIC.  See e.g. "AP-388 82489DX User's Manual" (Intel
  31  * document number 292116).  So here it goes...
  32  */
  33 static inline void default_init_apic_ldr(void)
  34 {
  35         unsigned long val;
  36
  37         apic_write(APIC_DFR, APIC_DFR_VALUE);
  38         val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
  39         val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
  40         apic_write(APIC_LDR, val);
  41 }
  42
  43 static inline int default_apic_id_registered(void)
  44 {
  45         return physid_isset(read_apic_id(), phys_cpu_present_map);
  46 }
  47
  48 static inline unsigned int
  49 default_cpu_mask_to_apicid(const struct cpumask *cpumask)
  50 {
  51         return cpumask_bits(cpumask)[0];
  52 }
  53
  54 static inline unsigned int
  55 default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
  56                                const struct cpumask *andmask)
  57 {
  58         unsigned long mask1 = cpumask_bits(cpumask)[0];
  59         unsigned long mask2 = cpumask_bits(andmask)[0];
  60         unsigned long mask3 = cpumask_bits(cpu_online_mask)[0];
  61
  62         return (unsigned int)(mask1 & mask2 & mask3);
  63 }
  64
  65 static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
  66 {
  67         return cpuid_apic >> index_msb;
  68 }
  69
  70 static inline void default_setup_apic_routing(void)
  71 {
  72 #ifdef CONFIG_X86_IO_APIC
  73         printk("Enabling APIC mode:  %s.  Using %d I/O APICs\n",
  74                                         "Flat", nr_ioapics);
  75 #endif
  76 }
  77
  78 static inline int default_apicid_to_node(int logical_apicid)
  79 {
  80 #ifdef CONFIG_SMP
  81         return apicid_2_node[hard_smp_processor_id()];
  82 #else
  83         return 0;
  84 #endif
  85 }
  86
  87 #endif
  88
  89 static inline unsigned long default_check_apicid_used(physid_mask_t bitmap, int apicid)
  90 {
  91         return physid_isset(apicid, bitmap);
  92 }
  93
  94 static inline unsigned long default_check_apicid_present(int bit)
  95 {
  96         return physid_isset(bit, phys_cpu_present_map);
  97 }
  98
  99 static inline physid_mask_t default_ioapic_phys_id_map(physid_mask_t phys_map)
 100 {
 101         return phys_map;
 102 }
 103
 104 /* Mapping from cpu number to logical apicid */
 105 static inline int default_cpu_to_logical_apicid(int cpu)
 106 {
 107         return 1 << cpu;
 108 }
 109
 110 static inline int __default_cpu_present_to_apicid(int mps_cpu)
 111 {
 112         if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))
 113                 return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
 114         else
 115                 return BAD_APICID;
 116 }
 117
 118 static inline int
 119 __default_check_phys_apicid_present(int boot_cpu_physical_apicid)
 120 {
 121         return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
 122 }
 123
 124 #ifdef CONFIG_X86_32
 125 static inline int default_cpu_present_to_apicid(int mps_cpu)
 126 {
 127         return __default_cpu_present_to_apicid(mps_cpu);
 128 }
 129
 130 static inline int
 131 default_check_phys_apicid_present(int boot_cpu_physical_apicid)
 132 {
 133         return __default_check_phys_apicid_present(boot_cpu_physical_apicid);
 134 }
 135 #else
 136 extern int default_cpu_present_to_apicid(int mps_cpu);
 137 extern int default_check_phys_apicid_present(int boot_cpu_physical_apicid);
 138 #endif
 139
 140 static inline physid_mask_t default_apicid_to_cpu_present(int phys_apicid)
 141 {
 142         return physid_mask_of_physid(phys_apicid);
 143 }
 144
 145 #endif /* CONFIG_X86_LOCAL_APIC */
 146 #endif /* _ASM_X86_MACH_DEFAULT_MACH_APIC_H */