sys/arch/ia64/include/intr.h

   1 /*      $NetBSD: intr.h,v 1.4 2008/03/20 09:09:20 kochi Exp $   */
   2
   3 /* XXX: cherry: To Be fixed when we switch on interrupts. */
   4
   5 #ifndef _IA64_INTR_H_
   6 #define _IA64_INTR_H_
   7
   8 #include <machine/intrdefs.h>
   9
  10 static __inline int splraise(int dummy) { return 0; }
  11 static __inline void spllower(int dummy) { }
  12
  13 /*
  14  * Miscellaneous
  15  */
  16 #define splvm()         splraise(IPL_VM)
  17 #define splhigh()       splraise(IPL_HIGH)
  18 #define spl0()          spllower(IPL_NONE)
  19 #define splsched()      splraise(IPL_SCHED)
  20 #define spllock()       splhigh()
  21 #define splx(x)         spllower(x)
  22
  23 /*
  24  * Software interrupt masks
  25  */
  26
  27 #define splsoftclock() splraise(IPL_SOFTCLOCK)
  28 #define splsoftnet()    splraise(IPL_SOFTNET)
  29 #define splsoftserial() splraise(IPL_SOFTSERIAL)
  30
  31 typedef int ipl_t;
  32 typedef struct {
  33         ipl_t _ipl;
  34 } ipl_cookie_t;
  35
  36 static inline ipl_cookie_t
  37 makeiplcookie(ipl_t ipl)
  38 {
  39
  40         return (ipl_cookie_t){._ipl = ipl};
  41 }
  42
  43 static inline int
  44 splraiseipl(ipl_cookie_t icookie)
  45 {
  46
  47         return splraise(icookie._ipl);
  48 }
  49
  50
  51 /*
  52  * Layout of the Processor Interrupt Block.
  53  */
  54 struct ia64_interrupt_block
  55 {
  56         uint64_t ib_ipi[0x20000];       /* 1Mb of IPI interrupts */
  57         uint8_t ib_reserved1[0xe0000];
  58         uint8_t ib_inta;                /* Generate INTA cycle */
  59         uint8_t ib_reserved2[7];
  60         uint8_t ib_xtp;                 /* XTP cycle */
  61         uint8_t ib_reserved3[7];
  62         uint8_t ib_reserved4[0x1fff0];
  63 };
  64
  65 extern uint64_t ia64_lapic_address;
  66
  67 #define IA64_INTERRUPT_BLOCK \
  68         (struct ia64_interrupt_block *)IA64_PHYS_TO_RR6(ia64_lapic_address)
  69
  70 void *intr_establish(int, int, int, int (*)(void *), void *);
  71 void intr_disestablish(void *);
  72
  73 #endif /* ! _IA64_INTR_H_ */