include/asm-x86/bigsmp/apic.h

   1 #ifndef __ASM_MACH_APIC_H
   2 #define __ASM_MACH_APIC_H
   3
   4 #define xapic_phys_to_log_apicid(cpu) (per_cpu(x86_bios_cpu_apicid, cpu))
   5 #define esr_disable (1)
   6
   7 static inline int apic_id_registered(void)
   8 {
   9         return (1);
  10 }
  11
  12 /* Round robin the irqs amoung the online cpus */
  13 static inline cpumask_t target_cpus(void)
  14 {
  15         static unsigned long cpu = NR_CPUS;
  16         do {
  17                 if (cpu >= NR_CPUS)
  18                         cpu = first_cpu(cpu_online_map);
  19                 else
  20                         cpu = next_cpu(cpu, cpu_online_map);
  21         } while (cpu >= NR_CPUS);
  22         return cpumask_of_cpu(cpu);
  23 }
  24
  25 #undef APIC_DEST_LOGICAL
  26 #define APIC_DEST_LOGICAL       0
  27 #define TARGET_CPUS             (target_cpus())
  28 #define APIC_DFR_VALUE          (APIC_DFR_FLAT)
  29 #define INT_DELIVERY_MODE       (dest_Fixed)
  30 #define INT_DEST_MODE           (0)    /* phys delivery to target proc */
  31 #define NO_BALANCE_IRQ          (0)
  32 #define WAKE_SECONDARY_VIA_INIT
  33
  34
  35 static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
  36 {
  37         return (0);
  38 }
  39
  40 static inline unsigned long check_apicid_present(int bit)
  41 {
  42         return (1);
  43 }
  44
  45 static inline unsigned long calculate_ldr(int cpu)
  46 {
  47         unsigned long val, id;
  48         val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
  49         id = xapic_phys_to_log_apicid(cpu);
  50         val |= SET_APIC_LOGICAL_ID(id);
  51         return val;
  52 }
  53
  54 /*
  55  * Set up the logical destination ID.
  56  *
  57  * Intel recommends to set DFR, LDR and TPR before enabling
  58  * an APIC.  See e.g. "AP-388 82489DX User's Manual" (Intel
  59  * document number 292116).  So here it goes...
  60  */
  61 static inline void init_apic_ldr(void)
  62 {
  63         unsigned long val;
  64         int cpu = smp_processor_id();
  65
  66         apic_write(APIC_DFR, APIC_DFR_VALUE);
  67         val = calculate_ldr(cpu);
  68         apic_write(APIC_LDR, val);
  69 }
  70
  71 static inline void setup_apic_routing(void)
  72 {
  73         printk("Enabling APIC mode:  %s.  Using %d I/O APICs\n",
  74                 "Physflat", nr_ioapics);
  75 }
  76
  77 static inline int multi_timer_check(int apic, int irq)
  78 {
  79         return (0);
  80 }
  81
  82 static inline int apicid_to_node(int logical_apicid)
  83 {
  84         return apicid_2_node[hard_smp_processor_id()];
  85 }
  86
  87 static inline int cpu_present_to_apicid(int mps_cpu)
  88 {
  89         if (mps_cpu < NR_CPUS)
  90                 return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu);
  91
  92         return BAD_APICID;
  93 }
  94
  95 static inline physid_mask_t apicid_to_cpu_present(int phys_apicid)
  96 {
  97         return physid_mask_of_physid(phys_apicid);
  98 }
  99
 100 extern u8 cpu_2_logical_apicid[];
 101 /* Mapping from cpu number to logical apicid */
 102 static inline int cpu_to_logical_apicid(int cpu)
 103 {
 104         if (cpu >= NR_CPUS)
 105                 return BAD_APICID;
 106         return cpu_physical_id(cpu);
 107 }
 108
 109 static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
 110 {
 111         /* For clustered we don't have a good way to do this yet - hack */
 112         return physids_promote(0xFFL);
 113 }
 114
 115 static inline void setup_portio_remap(void)
 116 {
 117 }
 118
 119 static inline void enable_apic_mode(void)
 120 {
 121 }
 122
 123 static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
 124 {
 125         return (1);
 126 }
 127
 128 /* As we are using single CPU as destination, pick only one CPU here */
 129 static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
 130 {
 131         int cpu;
 132         int apicid;
 133
 134         cpu = first_cpu(cpumask);
 135         apicid = cpu_to_logical_apicid(cpu);
 136         return apicid;
 137 }
 138
 139 static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
 140 {
 141         return cpuid_apic >> index_msb;
 142 }
 143
 144 #endif /* __ASM_MACH_APIC_H */