icu: Split out icu/icu.c
[dragonfly.git] / sys / platform / pc32 / i386 / ipl_funcs.c
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1/*-
2 * Copyright (c) 1997 Bruce Evans.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: src/sys/i386/isa/ipl_funcs.c,v 1.32.2.5 2002/12/17 18:04:02 sam Exp $
0fb6ec96 27 * $DragonFly: src/sys/platform/pc32/isa/ipl_funcs.c,v 1.15 2007/01/11 23:23:55 dillon Exp $
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28 */
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kernel.h>
33#include <sys/sysctl.h>
1b505979 34#include <sys/interrupt.h>
f1d1c3fa 35#include <sys/proc.h>
984263bc 36#include <machine/ipl.h>
85100692 37#include <machine/globaldata.h>
f1d1c3fa 38#include <machine/pcb.h>
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39
40/*
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41 * Bits in the spending bitmap variable must be set atomically because
42 * spending may be manipulated by interrupts or other cpu's without holding
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43 * any locks.
44 *
45 * Note: setbits uses a locked or, making simple cases MP safe.
46 */
235957ed 47#define DO_SETBITS(name, var, bits) \
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48void \
49name(void) \
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50{ \
51 struct mdglobaldata *gd = mdcpu; \
52 atomic_set_int_nonlocked(var, bits); \
2a418930 53 atomic_set_int(&gd->mi.gd_reqflags, RQF_INTPEND); \
235957ed 54} \
984263bc 55
5f456c40 56DO_SETBITS(setdelayed, &gd->gd_spending, loadandclear(&gd->gd_sdelayed))
984263bc 57
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58DO_SETBITS(setsoftcamnet,&gd->gd_spending, SWI_CAMNET_PENDING)
59DO_SETBITS(setsoftcambio,&gd->gd_spending, SWI_CAMBIO_PENDING)
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60/*DO_SETBITS(setsoftunused02, &gd->gd_spending, SWI_UNUSED02_PENDING)*/
61/*DO_SETBITS(setsoftunused01, &gd->gd_spending, SWI_UNUSED01_PENDING)*/
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62DO_SETBITS(setsofttty, &gd->gd_spending, SWI_TTY_PENDING)
63DO_SETBITS(setsoftvm, &gd->gd_spending, SWI_VM_PENDING)
64DO_SETBITS(setsofttq, &gd->gd_spending, SWI_TQ_PENDING)
65DO_SETBITS(setsoftcrypto,&gd->gd_spending, SWI_CRYPTO_PENDING)
984263bc 66
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67/*DO_SETBITS(schedsoftcamnet, &gd->gd_sdelayed, SWI_CAMNET_PENDING)*/
68/*DO_SETBITS(schedsoftcambio, &gd->gd_sdelayed, SWI_CAMBIO_PENDING)*/
69/*DO_SETBITS(schedsoftunused01, &gd->gd_sdelayed, SWI_UNUSED01_PENDING)*/
5f456c40 70DO_SETBITS(schedsofttty, &gd->gd_sdelayed, SWI_TTY_PENDING)
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71/*DO_SETBITS(schedsoftvm, &gd->gd_sdelayed, SWI_VM_PENDING)*/
72/*DO_SETBITS(schedsofttq, &gd->gd_sdelayed, SWI_TQ_PENDING)*/
984263bc 73