/* $OpenBSD: intr.h,v 1.26 2009/12/29 13:11:40 jsing Exp $ */ /* * Copyright (c) 2002-2004 Michael Shalayeff * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _MACHINE_INTR_H_ #define _MACHINE_INTR_H_ #include #define CPU_NINTS 32 #define NIPL 16 #define IPL_NONE 0 #define IPL_SOFTCLOCK 1 #define IPL_SOFTNET 2 #define IPL_BIO 3 #define IPL_NET 4 #define IPL_SOFTTTY 5 #define IPL_TTY 6 #define IPL_VM 7 #define IPL_AUDIO 8 #define IPL_CLOCK 9 #define IPL_STATCLOCK 10 #define IPL_HIGH 10 #define IPL_NESTED 11 /* pseudo-level for sub-tables */ #define IST_NONE 0 #define IST_PULSE 1 #define IST_EDGE 2 #define IST_LEVEL 3 #if !defined(_LOCORE) && defined(_KERNEL) #include extern volatile int cpl; extern volatile u_long ipending, imask[NIPL]; #ifdef DIAGNOSTIC void splassert_fail(int, int, const char *); extern int splassert_ctl; void splassert_check(int, const char *); #define splassert(__wantipl) do { \ if (splassert_ctl > 0) { \ splassert_check(__wantipl, __func__); \ } \ } while (0) #define splsoftassert(__wantipl) splassert(__wantipl) #else #define splassert(__wantipl) do { /* nada */ } while (0) #define splsoftassert(__wantipl) do { /* nada */ } while (0) #endif /* DIAGNOSTIC */ void cpu_intr_init(void); void cpu_intr(void *); static __inline int spllower(int ncpl) { register int ocpl asm("r28") = ncpl; __asm __volatile("copy %0, %%arg0\n\tbreak %1, %2" : "+r" (ocpl) : "i" (HPPA_BREAK_KERNEL), "i" (HPPA_BREAK_SPLLOWER) : "r26", "memory"); return (ocpl); } static __inline int splraise(int ncpl) { int ocpl = cpl; if (ocpl < ncpl) cpl = ncpl; __asm __volatile ("sync" : "+r" (cpl)); return (ocpl); } static __inline void splx(int ncpl) { (void)spllower(ncpl); } #define splsoftclock() splraise(IPL_SOFTCLOCK) #define splsoftnet() splraise(IPL_SOFTNET) #define splbio() splraise(IPL_BIO) #define splnet() splraise(IPL_NET) #define splsofttty() splraise(IPL_SOFTTTY) #define spltty() splraise(IPL_TTY) #define splvm() splraise(IPL_VM) #define splaudio() splraise(IPL_AUDIO) #define splclock() splraise(IPL_CLOCK) #define splsched() splraise(IPL_SCHED) #define splstatclock() splraise(IPL_STATCLOCK) #define splhigh() splraise(IPL_HIGH) #define spl0() spllower(IPL_NONE) #define softintr(mask) atomic_setbits_long(&ipending, mask) #define SOFTINT_MASK ((1 << (IPL_SOFTCLOCK - 1)) | \ (1 << (IPL_SOFTNET - 1)) | (1 << (IPL_SOFTTTY - 1))) #define setsoftast(p) (p->p_md.md_astpending = 1) #define setsoftnet() softintr(1 << (IPL_SOFTNET - 1)) void *softintr_establish(int, void (*)(void *), void *); void softintr_disestablish(void *); void softintr_schedule(void *); #endif /* !_LOCORE && _KERNEL */ #endif /* _MACHINE_INTR_H_ */