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 <mach_apicdef.h>
   7 #include <asm/smp.h>
   8
   9 #define APIC_DFR_VALUE  (APIC_DFR_FLAT)
  10
  11 static inline const struct cpumask *default_target_cpus(void)
  12 {
  13 #ifdef CONFIG_SMP
  14         return cpu_online_mask;
  15 #else
  16         return cpumask_of(0);
  17 #endif
  18 }
  19
  20 #ifdef CONFIG_X86_64
  21 #include <asm/genapic.h>
  22 #define cpu_mask_to_apicid (apic->cpu_mask_to_apicid)
  23 #define cpu_mask_to_apicid_and (apic->cpu_mask_to_apicid_and)
  24 #define phys_pkg_id     (apic->phys_pkg_id)
  25 #define read_apic_id()  (GET_APIC_ID(apic_read(APIC_ID)))
  26 #define send_IPI_self (apic->send_IPI_self)
  27 #define wakeup_secondary_cpu (apic->wakeup_cpu)
  28 extern void setup_apic_routing(void);
  29 #else
  30 #define wakeup_secondary_cpu wakeup_secondary_cpu_via_init
  31 /*
  32  * Set up the logical destination ID.
  33  *
  34  * Intel recommends to set DFR, LDR and TPR before enabling
  35  * an APIC.  See e.g. "AP-388 82489DX User's Manual" (Intel
  36  * document number 292116).  So here it goes...
  37  */
  38 static inline void default_init_apic_ldr(void)
  39 {
  40         unsigned long val;
  41
  42         apic_write(APIC_DFR, APIC_DFR_VALUE);
  43         val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
  44         val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
  45         apic_write(APIC_LDR, val);
  46 }
  47
  48 static inline int default_apic_id_registered(void)
  49 {
  50         return physid_isset(read_apic_id(), phys_cpu_present_map);
  51 }
  52
  53 static inline unsigned int cpu_mask_to_apicid(const struct cpumask *cpumask)
  54 {
  55         return cpumask_bits(cpumask)[0];
  56 }
  57
  58 static inline unsigned int cpu_mask_to_apicid_and(const struct cpumask *cpumask,
  59                                                   const struct cpumask *andmask)
  60 {
  61         unsigned long mask1 = cpumask_bits(cpumask)[0];
  62         unsigned long mask2 = cpumask_bits(andmask)[0];
  63         unsigned long mask3 = cpumask_bits(cpu_online_mask)[0];
  64
  65         return (unsigned int)(mask1 & mask2 & mask3);
  66 }
  67
  68 static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
  69 {
  70         return cpuid_apic >> index_msb;
  71 }
  72
  73 static inline void setup_apic_routing(void)
  74 {
  75 #ifdef CONFIG_X86_IO_APIC
  76         printk("Enabling APIC mode:  %s.  Using %d I/O APICs\n",
  77                                         "Flat", nr_ioapics);
  78 #endif
  79 }
  80
  81 static inline int apicid_to_node(int logical_apicid)
  82 {
  83 #ifdef CONFIG_SMP
  84         return apicid_2_node[hard_smp_processor_id()];
  85 #else
  86         return 0;
  87 #endif
  88 }
  89
  90 #endif
  91
  92 static inline unsigned long default_check_apicid_used(physid_mask_t bitmap, int apicid)
  93 {
  94         return physid_isset(apicid, bitmap);
  95 }
  96
  97 static inline unsigned long default_check_apicid_present(int bit)
  98 {
  99         return physid_isset(bit, phys_cpu_present_map);
 100 }
 101
 102 static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
 103 {
 104         return phys_map;
 105 }
 106
 107 static inline int multi_timer_check(int apic, int irq)
 108 {
 109         return 0;
 110 }
 111
 112 /* Mapping from cpu number to logical apicid */
 113 static inline int cpu_to_logical_apicid(int cpu)
 114 {
 115         return 1 << cpu;
 116 }
 117
 118 static inline int cpu_present_to_apicid(int mps_cpu)
 119 {
 120         if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))
 121                 return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
 122         else
 123                 return BAD_APICID;
 124 }
 125
 126 static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
 127 {
 128         return physid_mask_of_physid(phys_apicid);
 129 }
 130
 131 static inline void setup_portio_remap(void)
 132 {
 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
 140 static inline void enable_apic_mode(void)
 141 {
 142 }
 143 #endif /* CONFIG_X86_LOCAL_APIC */
 144 #endif /* _ASM_X86_MACH_DEFAULT_MACH_APIC_H */