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