include/asm-ia64/iosapic.h

   1 #ifndef __ASM_IA64_IOSAPIC_H
   2 #define __ASM_IA64_IOSAPIC_H
   3
   4 #define IOSAPIC_DEFAULT_ADDR    0xFEC00000
   5
   6 #define IOSAPIC_REG_SELECT      0x0
   7 #define IOSAPIC_WINDOW          0x10
   8 #define IOSAPIC_EOI             0x40
   9
  10 #define IOSAPIC_VERSION 0x1
  11
  12 /*
  13  * Redirection table entry
  14  */
  15 #define IOSAPIC_RTE_LOW(i)      (0x10+i*2)
  16 #define IOSAPIC_RTE_HIGH(i)     (0x11+i*2)
  17
  18 #define IOSAPIC_DEST_SHIFT              16
  19
  20 /*
  21  * Delivery mode
  22  */
  23 #define IOSAPIC_DELIVERY_SHIFT          8
  24 #define IOSAPIC_FIXED                   0x0
  25 #define IOSAPIC_LOWEST_PRIORITY 0x1
  26 #define IOSAPIC_PMI                     0x2
  27 #define IOSAPIC_NMI                     0x4
  28 #define IOSAPIC_INIT                    0x5
  29 #define IOSAPIC_EXTINT                  0x7
  30
  31 /*
  32  * Interrupt polarity
  33  */
  34 #define IOSAPIC_POLARITY_SHIFT          13
  35 #define IOSAPIC_POL_HIGH                0
  36 #define IOSAPIC_POL_LOW         1
  37
  38 /*
  39  * Trigger mode
  40  */
  41 #define IOSAPIC_TRIGGER_SHIFT           15
  42 #define IOSAPIC_EDGE                    0
  43 #define IOSAPIC_LEVEL                   1
  44
  45 /*
  46  * Mask bit
  47  */
  48
  49 #define IOSAPIC_MASK_SHIFT              16
  50 #define IOSAPIC_MASK                    (1<<IOSAPIC_MASK_SHIFT)
  51
  52 #ifndef __ASSEMBLY__
  53
  54 #ifdef CONFIG_IOSAPIC
  55
  56 #define NR_IOSAPICS                     256
  57
  58 extern void __init iosapic_system_init (int pcat_compat);
  59 extern void __init iosapic_init (unsigned long address,
  60                                     unsigned int gsi_base);
  61 extern int gsi_to_vector (unsigned int gsi);
  62 extern int gsi_to_irq (unsigned int gsi);
  63 extern void __init iosapic_parse_prt (void);
  64 extern void iosapic_enable_intr (unsigned int vector);
  65 extern int iosapic_register_intr (unsigned int gsi, unsigned long polarity,
  66                                   unsigned long trigger);
  67 extern void __init iosapic_override_isa_irq (unsigned int isa_irq, unsigned int gsi,
  68                                       unsigned long polarity,
  69                                       unsigned long trigger);
  70 extern int __init iosapic_register_platform_intr (u32 int_type,
  71                                            unsigned int gsi,
  72                                            int pmi_vector,
  73                                            u16 eid, u16 id,
  74                                            unsigned long polarity,
  75                                            unsigned long trigger);
  76 extern unsigned int iosapic_version (char *addr);
  77
  78 extern void iosapic_pci_fixup (int);
  79 #else
  80 #define iosapic_system_init(pcat_compat)                        do { } while (0)
  81 #define iosapic_init(address,gsi_base)                          do { } while (0)
  82 #define iosapic_register_intr(gsi,polarity,trigger)             (gsi)
  83 #define iosapic_override_isa_irq(isa_irq,gsi,polarity,trigger)  do { } while (0)
  84 #define iosapic_register_platform_intr(type,gsi,pmi,eid,id, \
  85         polarity,trigger)                                       (gsi)
  86 #endif
  87
  88 # endif /* !__ASSEMBLY__ */
  89 #endif /* __ASM_IA64_IOSAPIC_H */