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      1 /*	$NetBSD: intr.h,v 1.9 2025/05/20 10:19:14 bouyer 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	splsoftbio() splraise(IPL_SOFTBIO)
     28 #define	splsoftclock() splraise(IPL_SOFTCLOCK)
     29 #define	splsoftnet()	splraise(IPL_SOFTNET)
     30 #define	splsoftserial()	splraise(IPL_SOFTSERIAL)
     31 
     32 typedef int ipl_t;
     33 typedef struct {
     34 	ipl_t _ipl;
     35 } ipl_cookie_t;
     36 
     37 static inline ipl_cookie_t
     38 makeiplcookie(ipl_t ipl)
     39 {
     40 
     41 	return (ipl_cookie_t){._ipl = ipl};
     42 }
     43 
     44 static inline int
     45 splraiseipl(ipl_cookie_t icookie)
     46 {
     47 
     48 	return splraise(icookie._ipl);
     49 }
     50 
     51 
     52 /*
     53  * Layout of the Processor Interrupt Block.
     54  */
     55 struct ia64_interrupt_block
     56 {
     57 	uint64_t ib_ipi[0x20000];	/* 1Mb of IPI interrupts */
     58 	uint8_t ib_reserved1[0xe0000];
     59 	uint8_t ib_inta;		/* Generate INTA cycle */
     60 	uint8_t ib_reserved2[7];
     61 	uint8_t ib_xtp;			/* XTP cycle */
     62 	uint8_t ib_reserved3[7];
     63 	uint8_t ib_reserved4[0x1fff0];
     64 };
     65 
     66 extern uint64_t ia64_lapic_address;
     67 
     68 #define IA64_INTERRUPT_BLOCK \
     69 	(struct ia64_interrupt_block *)IA64_PHYS_TO_RR6(ia64_lapic_address)
     70 
     71 /* XXX acpi */
     72 typedef uint64_t intr_handle_t;
     73 const char *intr_string(intr_handle_t, char *, size_t);
     74 
     75 void *intr_establish(int, int, int, int (*)(void *), void *);
     76 void *intr_establish_xname(int, int, int, int (*)(void *), void *, const char *);
     77 void intr_disestablish(void *);
     78 void ia64_handle_intr(void *);
     79 
     80 #endif /* ! _IA64_INTR_H_ */
     81