include/asm-x86/numaq/apic.h

   1 #ifndef __ASM_NUMAQ_APIC_H
   2 #define __ASM_NUMAQ_APIC_H
   3
   4 #include <asm/io.h>
   5 #include <linux/mmzone.h>
   6 #include <linux/nodemask.h>
   7
   8 #define APIC_DFR_VALUE  (APIC_DFR_CLUSTER)
   9
  10 static inline cpumask_t target_cpus(void)
  11 {
  12         return CPU_MASK_ALL;
  13 }
  14
  15 #define TARGET_CPUS (target_cpus())
  16
  17 #define NO_BALANCE_IRQ (1)
  18 #define esr_disable (1)
  19
  20 #define INT_DELIVERY_MODE dest_LowestPrio
  21 #define INT_DEST_MODE 0     /* physical delivery on LOCAL quad */
  22
  23 static inline unsigned long check_apicid_used(physid_mask_t bitmap, int apicid)
  24 {
  25         return physid_isset(apicid, bitmap);
  26 }
  27 static inline unsigned long check_apicid_present(int bit)
  28 {
  29         return physid_isset(bit, phys_cpu_present_map);
  30 }
  31 #define apicid_cluster(apicid) (apicid & 0xF0)
  32
  33 static inline int apic_id_registered(void)
  34 {
  35         return 1;
  36 }
  37
  38 static inline void init_apic_ldr(void)
  39 {
  40         /* Already done in NUMA-Q firmware */
  41 }
  42
  43 static inline void setup_apic_routing(void)
  44 {
  45         printk("Enabling APIC mode:  %s.  Using %d I/O APICs\n",
  46                 "NUMA-Q", nr_ioapics);
  47 }
  48
  49 /*
  50  * Skip adding the timer int on secondary nodes, which causes
  51  * a small but painful rift in the time-space continuum.
  52  */
  53 static inline int multi_timer_check(int apic, int irq)
  54 {
  55         return apic != 0 && irq == 0;
  56 }
  57
  58 static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
  59 {
  60         /* We don't have a good way to do this yet - hack */
  61         return physids_promote(0xFUL);
  62 }
  63
  64 /* Mapping from cpu number to logical apicid */
  65 extern u8 cpu_2_logical_apicid[];
  66 static inline int cpu_to_logical_apicid(int cpu)
  67 {
  68        if (cpu >= NR_CPUS)
  69                return BAD_APICID;
  70         return (int)cpu_2_logical_apicid[cpu];
  71 }
  72
  73 /*
  74  * Supporting over 60 cpus on NUMA-Q requires a locality-dependent
  75  * cpu to APIC ID relation to properly interact with the intelligent
  76  * mode of the cluster controller.
  77  */
  78 static inline int cpu_present_to_apicid(int mps_cpu)
  79 {
  80         if (mps_cpu < 60)
  81                 return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3));
  82         else
  83                 return BAD_APICID;
  84 }
  85
  86 static inline int apicid_to_node(int logical_apicid)
  87 {
  88         return logical_apicid >> 4;
  89 }
  90
  91 static inline physid_mask_t apicid_to_cpu_present(int logical_apicid)
  92 {
  93         int node = apicid_to_node(logical_apicid);
  94         int cpu = __ffs(logical_apicid & 0xf);
  95
  96         return physid_mask_of_physid(cpu + 4*node);
  97 }
  98
  99 extern void *xquad_portio;
 100
 101 static inline void setup_portio_remap(void)
 102 {
 103         int num_quads = num_online_nodes();
 104
 105         if (num_quads <= 1)
 106                 return;
 107
 108         printk("Remapping cross-quad port I/O for %d quads\n", num_quads);
 109         xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD);
 110         printk("xquad_portio vaddr 0x%08lx, len %08lx\n",
 111                 (u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
 112 }
 113
 114 static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
 115 {
 116         return (1);
 117 }
 118
 119 static inline void enable_apic_mode(void)
 120 {
 121 }
 122
 123 /*
 124  * We use physical apicids here, not logical, so just return the default
 125  * physical broadcast to stop people from breaking us
 126  */
 127 static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
 128 {
 129         return (int) 0xF;
 130 }
 131
 132 /* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
 133 static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
 134 {
 135         return cpuid_apic >> index_msb;
 136 }
 137
 138 #endif /* __ASM_NUMAQ_APIC_H */