include/asm-i386/mach-numaq/mach_apic.h

   1 #ifndef __ASM_MACH_APIC_H
   2 #define __ASM_MACH_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 #define check_apicid_used(bitmap, apicid) physid_isset(apicid, bitmap)
  24 #define check_apicid_present(bit) physid_isset(bit, phys_cpu_present_map)
  25 #define apicid_cluster(apicid) (apicid & 0xF0)
  26
  27 static inline int apic_id_registered(void)
  28 {
  29         return 1;
  30 }
  31
  32 static inline void init_apic_ldr(void)
  33 {
  34         /* Already done in NUMA-Q firmware */
  35 }
  36
  37 static inline void setup_apic_routing(void)
  38 {
  39         printk("Enabling APIC mode:  %s.  Using %d I/O APICs\n",
  40                 "NUMA-Q", nr_ioapics);
  41 }
  42
  43 /*
  44  * Skip adding the timer int on secondary nodes, which causes
  45  * a small but painful rift in the time-space continuum.
  46  */
  47 static inline int multi_timer_check(int apic, int irq)
  48 {
  49         return apic != 0 && irq == 0;
  50 }
  51
  52 static inline physid_mask_t ioapic_phys_id_map(physid_mask_t phys_map)
  53 {
  54         /* We don't have a good way to do this yet - hack */
  55         return physids_promote(0xFUL);
  56 }
  57
  58 /* Mapping from cpu number to logical apicid */
  59 extern u8 cpu_2_logical_apicid[];
  60 static inline int cpu_to_logical_apicid(int cpu)
  61 {
  62        if (cpu >= NR_CPUS)
  63                return BAD_APICID;
  64         return (int)cpu_2_logical_apicid[cpu];
  65 }
  66
  67 /*
  68  * Supporting over 60 cpus on NUMA-Q requires a locality-dependent
  69  * cpu to APIC ID relation to properly interact with the intelligent
  70  * mode of the cluster controller.
  71  */
  72 static inline int cpu_present_to_apicid(int mps_cpu)
  73 {
  74         if (mps_cpu < 60)
  75                 return ((mps_cpu >> 2) << 4) | (1 << (mps_cpu & 0x3));
  76         else
  77                 return BAD_APICID;
  78 }
  79
  80 static inline int generate_logical_apicid(int quad, int phys_apicid)
  81 {
  82         return (quad << 4) + (phys_apicid ? phys_apicid << 1 : 1);
  83 }
  84
  85 static inline int apicid_to_node(int logical_apicid)
  86 {
  87         return logical_apicid >> 4;
  88 }
  89
  90 static inline physid_mask_t apicid_to_cpu_present(int logical_apicid)
  91 {
  92         int node = apicid_to_node(logical_apicid);
  93         int cpu = __ffs(logical_apicid & 0xf);
  94
  95         return physid_mask_of_physid(cpu + 4*node);
  96 }
  97
  98 static inline int mpc_apic_id(struct mpc_config_processor *m,
  99                         struct mpc_config_translation *translation_record)
 100 {
 101         int quad = translation_record->trans_quad;
 102         int logical_apicid = generate_logical_apicid(quad, m->mpc_apicid);
 103
 104         printk("Processor #%d %ld:%ld APIC version %d (quad %d, apic %d)\n",
 105                         m->mpc_apicid,
 106                         (m->mpc_cpufeature & CPU_FAMILY_MASK) >> 8,
 107                         (m->mpc_cpufeature & CPU_MODEL_MASK) >> 4,
 108                         m->mpc_apicver, quad, logical_apicid);
 109         return logical_apicid;
 110 }
 111
 112 static inline void setup_portio_remap(void)
 113 {
 114         int num_quads = num_online_nodes();
 115
 116         if (num_quads <= 1)
 117                 return;
 118
 119         printk("Remapping cross-quad port I/O for %d quads\n", num_quads);
 120         xquad_portio = ioremap(XQUAD_PORTIO_BASE, num_quads*XQUAD_PORTIO_QUAD);
 121         printk("xquad_portio vaddr 0x%08lx, len %08lx\n",
 122                 (u_long) xquad_portio, (u_long) num_quads*XQUAD_PORTIO_QUAD);
 123 }
 124
 125 static inline int check_phys_apicid_present(int boot_cpu_physical_apicid)
 126 {
 127         return (1);
 128 }
 129
 130 static inline void enable_apic_mode(void)
 131 {
 132 }
 133
 134 /*
 135  * We use physical apicids here, not logical, so just return the default
 136  * physical broadcast to stop people from breaking us
 137  */
 138 static inline unsigned int cpu_mask_to_apicid(cpumask_t cpumask)
 139 {
 140         return (int) 0xF;
 141 }
 142
 143 /* No NUMA-Q box has a HT CPU, but it can't hurt to use the default code. */
 144 static inline u32 phys_pkg_id(u32 cpuid_apic, int index_msb)
 145 {
 146         return cpuid_apic >> index_msb;
 147 }
 148
 149 #endif /* __ASM_MACH_APIC_H */