c6fae03058
cpu(s) into the kernel, and sync-ing them up to "kernel" mode so we can send them ipis, which also work. Thanks to John Baldwin for providing me with access to the hardware that made this possible. Parts obtained from: bsd/os
90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
/*-
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* Copyright (c) 2001 Jake Burkholder.
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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_MACHDEP_H_
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#define _MACHINE_INTR_MACHDEP_H_
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#define NPIL (1 << 4)
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#define NIV (1 << 11)
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#define IQ_SIZE (NPIL * 2)
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#define IQ_MASK (IQ_SIZE - 1)
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#define IH_SHIFT PTR_SHIFT
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#define IQE_SHIFT 5
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#define IV_SHIFT 5
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#define PIL_LOW 1 /* stray interrupts */
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#define PIL_ITHREAD 2 /* interrupts that use ithreads */
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#define PIL_RENDEZVOUS 3 /* smp rendezvous ipi */
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#define PIL_AST 4 /* ast ipi */
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#define PIL_STOP 5 /* stop cpu ipi */
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#define PIL_FAST 13 /* fast interrupts */
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#define PIL_TICK 14
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typedef void ih_func_t(struct trapframe *);
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typedef void iv_func_t(void *);
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struct iqe {
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u_int iqe_tag;
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u_int iqe_pri;
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u_long iqe_vec;
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iv_func_t *iqe_func;
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void *iqe_arg;
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};
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struct intr_queue {
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struct iqe iq_queue[IQ_SIZE]; /* must be first */
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u_long iq_head;
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u_long iq_tail;
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};
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struct ithd;
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struct intr_vector {
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iv_func_t *iv_func;
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void *iv_arg;
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struct ithd *iv_ithd;
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u_int iv_pri;
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u_int iv_vec;
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};
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extern ih_func_t *intr_handlers[];
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extern struct intr_vector intr_vectors[];
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void intr_setup(int level, ih_func_t *ihf, int pri, iv_func_t *ivf,
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void *iva);
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void intr_init(void);
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int inthand_add(const char *name, int vec, void (*handler)(void *),
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void *arg, int flags, void **cookiep);
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int inthand_remove(int vec, void *cookie);
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ih_func_t intr_dequeue;
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#endif
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