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intr.h revision 1.2 
      1 /*	$NetBSD: intr.h,v 1.2 2006/12/21 15:55:23 yamt 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 #define	IPL_NONE	0	/* XXX: Placeholder */
      9 #define	IPL_BIO		0	/* XXX: Placeholder */
     10 #define	IPL_NET		0	/* XXX: Placeholder */
     11 #define	IPL_TTY		0	/* XXX: Placeholder */
     12 #define	IPL_CLOCK	0	/* XXX: Placeholder */
     13 #define	IPL_STATCLOCK	0	/* XXX: Placeholder */
     14 #define	IPL_HIGH	0	/* XXX: Placeholder */
     15 #define	IPL_SERIAL	0	/* XXX: Placeholder */
     16 #define	IPL_SCHED	0	/* XXX: Placeholder */
     17 #define	IPL_LOCK	0	/* XXX: Placeholder */
     18 #define	IPL_VM		0	/* XXX: Placeholder */
     19 
     20 #define IPL_SOFTCLOCK   0	/* XXX: Placeholder */
     21 #define IPL_SOFTNET     0	/* XXX: Placeholder */
     22 #define IPL_SOFTSERIAL  0	/* XXX: Placeholder */
     23 
     24 static __inline int splraise(int dummy) { return 0; }
     25 static __inline void spllower(int dummy) { }
     26 
     27 /*
     28  * Hardware interrupt masks
     29  */
     30 #define	splbio()	splraise(IPL_BIO)
     31 #define	splnet()	splraise(IPL_NET)
     32 #define	spltty()	splraise(IPL_TTY)
     33 #define	splaudio()	splraise(IPL_AUDIO)
     34 #define	splclock()	splraise(IPL_CLOCK)
     35 #define	splstatclock()	splclock()
     36 #define	splserial()	splraise(IPL_SERIAL)
     37 #define splipi()	splraise(IPL_IPI)
     38 
     39 
     40 /*
     41  * Miscellaneous
     42  */
     43 #define	splvm()		splraise(IPL_VM)
     44 #define	splhigh()	splraise(IPL_HIGH)
     45 #define	spl0()		spllower(IPL_NONE)
     46 #define	splsched()	splraise(IPL_SCHED)
     47 #define spllock() 	splhigh()
     48 #define	splx(x)		spllower(x)
     49 
     50 /*
     51  * Software interrupt masks
     52  *
     53  * NOTE: spllowersoftclock() is used by hardclock() to lower the priority from
     54  * clock to softclock before it calls softclock().
     55  */
     56 
     57 #define spllowersoftclock() spllower(IPL_SOFTCLOCK)
     58 #define	splsoftclock() splraise(IPL_SOFTCLOCK)
     59 #define	splsoftnet()	splraise(IPL_SOFTNET)
     60 #define	splsoftserial()	splraise(IPL_SOFTSERIAL)
     61 
     62 typedef int ipl_t;
     63 typedef struct {
     64 	ipl_t _ipl;
     65 } ipl_cookie_t;
     66 
     67 static inline ipl_cookie_t
     68 makeiplcookie(ipl_t ipl)
     69 {
     70 
     71 	return (ipl_cookie_t){._ipl = ipl};
     72 }
     73 
     74 static inline int
     75 splraiseipl(ipl_cookie_t icookie)
     76 {
     77 
     78 	return splraise(icookie._ipl);
     79 }
     80 
     81 #endif /* ! _IA64_INTR_H_ */
     82