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

   1 #ifndef __ASM_MACH_APIC_H
   2 #define __ASM_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 cpumask_t target_cpus(void)
  12 {
  13 #ifdef CONFIG_SMP
  14         return cpu_online_map;
  15 #else
  16         return cpumask_of_cpu(0);
  17 #endif
  18 }
  19
  20 #define NO_BALANCE_IRQ (0)
  21 #define esr_disable (0)
  22
  23 #ifdef CONFIG_X86_64
  24 #include <asm/genapic.h>
  25 #define INT_DELIVERY_MODE (genapic->int_delivery_mode)
  26 #define INT_DEST_MODE (genapic->int_dest_mode)
  27 #define TARGET_CPUS       (genapic->target_cpus())
  28 #define apic_id_registered (genapic->apic_id_registered)
  29 #define init_apic_ldr (genapic->init_apic_ldr)
  30 #define cpu_mask_to_apicid (genapic->cpu_mask_to_apicid)
  31 #define phys_pkg_id     (genapic->phys_pkg_id)
  32 #define vector_allocation_domain    (genapic->vector_allocation_domain)
  33 extern void setup_apic_routing(void);
  34 #else
  35 #define INT_DELIVERY_MODE dest_LowestPrio
  36 #define INT_DEST_MODE 1     /* logical delivery broadcast to all procs */
  37 #define TARGET_CPUS (target_cpus())
  38 /*
  39  * Set up the logical destination ID.
  40  *
  41  * Intel recommends to set DFR, LDR and TPR before enabling
  42  * an APIC.  See e.g. "AP-388 82489DX User's Manual" (Intel
  43  * document number 292116).  So here it goes...
  44  */
  45 static inline void init_apic_ldr(void)
  46 {
  47         unsigned long val;
  48
  49         apic_write(APIC_DFR, APIC_DFR_VALUE);
  50         val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
  51         val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
  52         apic_write(APIC_LDR, val);
  53 }
  54
  55 static inline int apic_id_registered(void)
  56 {
  57         return physid_isset(GET_APIC_ID(read_apic_id()), phys_cpu_present_map);
  58 }
  59
  60 static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
  61 {
  62         return cpus_addr(cpumask)[0];
  63 }
  64
  65 static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
  66 {
  67         return cpuid_apic >> index_msb;
  68 }
  69
  70 static inline void 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 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 #endif
  87
  88 static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
  89 {
  90         return physid_isset(apicid, bitmap);
  91 }
  92
  93 static inline unsigned long check_apicid_present(int bit)
  94 {
  95         return physid_isset(bit, phys_cpu_present_map);
  96 }
  97
  98 static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
  99 {
 100         return phys_map;
 101 }
 102
 103 static inline int multi_timer_check(int apic, int irq)
 104 {
 105         return 0;
 106 }
 107
 108 /* Mapping from cpu number to logical apicid */
 109 static inline int cpu_to_logical_apicid(int cpu)
 110 {
 111         return 1 << cpu;
 112 }
 113
 114 static inline int cpu_present_to_apicid(int mps_cpu)
 115 {
 116         if (mps_cpu < NR_CPUS && cpu_present(mps_cpu))
 117                 return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
 118         else
 119                 return BAD_APICID;
 120 }
 121
 122 static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
 123 {
 124         return physid_mask_of_physid(phys_apicid);
 125 }
 126
 127 static inline void setup_portio_remap(void)
 128 {
 129 }
 130
 131 static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
 132 {
 133         return physid_isset(boot_cpu_physical_apicid, phys_cpu_present_map);
 134 }
 135
 136 static inline void enable_apic_mode(void)
 137 {
 138 }
 139
 140 #endif /* CONFIG_X86_LOCAL_APIC */
 141 #endif /* __ASM_MACH_APIC_H */