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intr.h revision 1.7 
      1 /*	$NetBSD: intr.h,v 1.7 2017/12/13 16:50:46 scole 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 /* XXX acpi */
     71 typedef uint64_t intr_handle_t;
     72 const char *intr_string(intr_handle_t, char *, size_t);
     73 
     74 void *intr_establish(int, int, int, int (*)(void *), void *);
     75 void intr_disestablish(void *);
     76 void ia64_handle_intr(void *);
     77 
     78 #endif /* ! _IA64_INTR_H_ */
     79