4b293a84e1
- Reduce available SPL levels for hardware devices to none, vm, sched, high. - Acquire kernel_lock only for interrupts at IPL_VM. - Implement threaded soft interrupts.
73 lines
3.0 KiB
C
73 lines
3.0 KiB
C
/* $NetBSD: intr.h,v 1.19 2007/12/03 15:34:22 ad Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Paul Kranenburg.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SPARC64_INTR_H_
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#define _SPARC64_INTR_H_
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#include <machine/cpuset.h>
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/* XXX - arbitrary numbers; no interpretation is defined yet */
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#define IPL_NONE 0 /* nothing */
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#define IPL_SOFTCLOCK 1 /* timeouts */
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#define IPL_SOFTBIO 1 /* block I/O */
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#define IPL_SOFTNET 1 /* protocol stack */
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#define IPL_SOFTSERIAL 4 /* serial */
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#define IPL_VM PIL_VM /* memory allocation */
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#define IPL_SCHED PIL_SCHED /* scheduler */
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#define IPL_HIGH PIL_HIGH /* everything */
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#define IPL_HALT 5 /* cpu stop-self */
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#define IPL_PAUSE 13 /* pause cpu */
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#define IPL_FDSOFT PIL_FDSOFT /* floppy */
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void save_and_clear_fpstate(struct lwp *);
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#if defined(MULTIPROCESSOR)
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void sparc64_ipi_init (void);
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int sparc64_ipi_halt_thiscpu (void *);
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int sparc64_ipi_pause_thiscpu (void *);
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void sparc64_ipi_drop_fpstate (void *);
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void sparc64_ipi_save_fpstate (void *);
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void sparc64_ipi_nop (void *);
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void mp_halt_cpus (void);
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void mp_pause_cpus (void);
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void mp_resume_cpus (void);
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int mp_cpu_is_paused (cpuset_t);
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#endif
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#endif /* _SPARC64_INTR_H_ */
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