90652ed180
argument. These flags include INTR_FAST, INTR_MPSAFE, etc. - Properly handle INTR_EXCL when it is passed in to allow an interrupt handler to claim exclusive ownership of an interrupt thread. - Add support for psuedo-fast interrupts on the alpha. For fast interrupts, we don't allocate an interrupt thread; instead, during dispatching of an interrupt, we run the handler directly instead of scheduling the thread to run. Note that the handler is currently run without Giant and must be MP safe. The only fast handler currently is for the sio driver. Requested by: dfr
40 lines
1.7 KiB
C
40 lines
1.7 KiB
C
/*-
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* Copyright (c) 1998 Doug Rabson
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* All rights reserved.
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_INTR_H_
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#define _MACHINE_INTR_H_
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int alpha_setup_intr(const char *name, int vector,
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driver_intr_t *handle, void *arg, int pri, int flags,
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void **cookiep, volatile long *cntp,
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void (*disable)(int), void (*enable)(int));
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int alpha_teardown_intr(void *cookie);
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void alpha_dispatch_intr(void *frame, unsigned long vector);
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#endif /* !_MACHINE_INTR_H_ */
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