diff options
Diffstat (limited to 'sys/arch/alpha/include/intr.h')
| -rw-r--r-- | sys/arch/alpha/include/intr.h | 130 |
1 files changed, 107 insertions, 23 deletions
diff --git a/sys/arch/alpha/include/intr.h b/sys/arch/alpha/include/intr.h index 6fb510601a2..9c8f150b151 100644 --- a/sys/arch/alpha/include/intr.h +++ b/sys/arch/alpha/include/intr.h @@ -1,5 +1,41 @@ -/* $OpenBSD: intr.h,v 1.11 2001/07/09 18:55:22 millert Exp $ */ -/* $NetBSD: intr.h,v 1.25 2000/05/23 05:12:56 thorpej Exp $ */ +/* $OpenBSD: intr.h,v 1.12 2001/09/30 13:08:45 art Exp $ */ +/* $NetBSD: intr.h,v 1.26 2000/06/03 20:47:41 thorpej Exp $ */ + +/*- + * Copyright (c) 2000 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Jason R. Thorpe. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the NetBSD + * Foundation, Inc. and its contributors. + * 4. Neither the name of The NetBSD Foundation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``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 FOUNDATION OR CONTRIBUTORS + * 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 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. + */ /* * Copyright (c) 1997 Christopher G. Demetriou. All rights reserved. @@ -32,16 +68,36 @@ #ifndef _ALPHA_INTR_H_ #define _ALPHA_INTR_H_ +#include <sys/lock.h> #include <sys/queue.h> #include <machine/atomic.h> -#define IPL_NONE 0 /* disable only this interrupt */ +/* + * Alpha interrupts come in at one of 4 levels: + * + * software interrupt level + * i/o level 1 + * i/o level 2 + * clock level + * + * However, since we do not have any way to know which hardware + * level a particular i/o interrupt comes in on, we have to + * whittle it down to 3. + */ + +#define IPL_NONE 1 /* disable only this interrupt */ #define IPL_BIO 1 /* disable block I/O interrupts */ -#define IPL_NET 2 /* disable network interrupts */ -#define IPL_TTY 3 /* disable terminal interrupts */ -#define IPL_CLOCK 4 /* disable clock interrupts */ -#define IPL_HIGH 5 /* disable all interrupts */ -#define IPL_SERIAL 6 /* disable serial interrupts */ +#define IPL_NET 1 /* disable network interrupts */ +#define IPL_TTY 1 /* disable terminal interrupts */ +#define IPL_CLOCK 2 /* disable clock interrupts */ +#define IPL_HIGH 3 /* disable all interrupts */ +#define IPL_SERIAL 1 /* disable serial interrupts */ + +#define IPL_SOFTSERIAL 0 /* serial software interrupts */ +#define IPL_SOFTNET 1 /* network software interrupts */ +#define IPL_SOFTCLOCK 2 /* clock software interrupts */ +#define IPL_SOFT 3 /* other software interrupts */ +#define IPL_NSOFT 4 #define IST_UNUSABLE -1 /* interrupt cannot be used */ #define IST_NONE 0 /* none (dummy) */ @@ -82,21 +138,6 @@ _splraise(s) #define spllpt() spltty() /* - * simulated software interrupt register - */ -extern u_long ssir; - -#define SIR_NET 0x1 -#define SIR_CLOCK 0x2 -#define SIR_SERIAL 0x4 - -#define setsoft(x) atomic_setbits_ulong(&ssir, (x)) - -#define setsoftnet() setsoft(SIR_NET) -#define setsoftclock() setsoft(SIR_CLOCK) -#define setsoftserial() setsoft(SIR_SERIAL) - -/* * Interprocessor interrupts. In order how we want them processed. */ #define ALPHA_IPI_HALT 0x0000000000000001UL @@ -142,6 +183,49 @@ struct alpha_shared_intr { ((asi)[num].intr_maxstrays != 0 && \ (asi)[num].intr_nstrays == (asi)[num].intr_maxstrays) +/* + * simulated software interrupt register + */ +extern unsigned long ssir; + +#define setsoft(x) atomic_setbits_ulong(&ssir, 1 << (x)) + +#define __GENERIC_SOFT_INTERRUPTS +struct alpha_soft_intrhand { + LIST_ENTRY(alpha_soft_intrhand) + sih_q; + struct alpha_soft_intr *sih_intrhead; + void (*sih_fn) __P((void *)); + void *sih_arg; + int sih_pending; +}; + +struct alpha_soft_intr { + LIST_HEAD(, alpha_soft_intrhand) + softintr_q; + struct simplelock softintr_slock; + unsigned long softintr_ipl; +}; + +void *softintr_establish __P((int, void (*)(void *), void *)); +void softintr_disestablish __P((void *)); +void softintr_init __P((void)); +void softintr_dispatch __P((void)); + +#define softintr_schedule(arg) \ +do { \ + struct alpha_soft_intrhand *__sih = (arg); \ + __sih->sih_pending = 1; \ + setsoft(__sih->sih_intrhead->softintr_ipl); \ +} while (0) + +/* XXX For legacy software interrupts. */ +extern struct alpha_soft_intrhand *softnet_intrhand; +extern struct alpha_soft_intrhand *softclock_intrhand; + +#define setsoftnet() softintr_schedule(softnet_intrhand) +#define setsoftclock() softintr_schedule(softclock_intrhand) + struct alpha_shared_intr *alpha_shared_intr_alloc __P((unsigned int)); int alpha_shared_intr_dispatch __P((struct alpha_shared_intr *, unsigned int)); |